Other Sites:
Robert J. Robbins is a biologist, an educator, a science administrator, a publisher, an information technologist, and an IT leader and manager who specializes in advancing biomedical knowledge and supporting education through the application of information technology. More About: RJR | OUR TEAM | OUR SERVICES | THIS WEBSITE
RJR: Recommended Bibliography 23 Sep 2026 at 01:51 Created:
Invasive Ductal Carcinoma (causes)
Invasive ductal carcinoma (IDC),
also known
as infiltrating ductal carcinoma, is cancer that
began growing in a milk duct and has invaded the
fibrous or fatty tissue of the breast outside of
the duct. IDC is the most common form of breast
cancer, representing 80 percent of all breast
cancer diagnoses.
The causes of invasive ductal carcinoma have not been conclusively established. Researchers have determined that cancer can form when the cells in a milk-producing duct undergo changes that cause them to grow uncontrollably, divide very rapidly or remain viable longer than they should. The result is an accumulation of excess cells that can form a mass, or tumor, and potentially spread to nearby lymph nodes and distant areas of the body. The underlying reason for those cellular changes, however, remains unclear.
By evaluating the results of extensive studies, scientists have identified certain hormonal, environmental and lifestyle factors that are believed to influence a person's breast cancer risk, such as smoking, poor nutrition and prior radiation therapy administered to the chest area. Even so, it's important to keep in mind that some individuals who have no risk factors develop cancer, while others with one or more risk factors do not. Most likely, the precise cause is a complex interaction of many factors.
In rare cases, the causes of invasive ductal carcinoma have been traced to inherited attributes, such as mutations of the:
(a)
Breast cancer gene 1 (BRCA1), a tumor suppressor gene,
(b)
Breast cancer gene 2 (BRCA2), a tumor suppressor gene, or
(c)
ErbB2 gene, which produces the HER2 protein that promotes cellular proliferation.
Created with PubMed® Query: ( ("invasive ductal carcinoma" OR IDC) AND (cause OR caused OR etiology) ) NOT pmcbook NOT ispreviousversion
Citations The Papers (from PubMed®)
RevDate: 2026-09-21
CmpDate: 2026-09-21
Combinatorial targeting of the miR-379/miR-410 cluster normalizes glucose and lipid homeostasis in male models of diabetes and obesity.
Nature communications, 17(1):.
Non-coding RNAs from the Dlk1-Dio3 locus are critical for the maturation of metabolic tissues in early stages of postnatal development; however, their role in the mature organs remains elusive. Herein, we show that microRNAs from the miR-379/miR-410 cluster are robustly upregulated in livers of subjects with obesity and various mouse models of metabolic dysfunction. Adult-onset, combinatorial inhibition of this miRNA cluster by hepatocyte-specific expression of a decoy sequence reduces triglyceride, total and LDL cholesterol circulating levels, decreases basal glycemia and improves glucose tolerance and insulin sensitivity irrespective of sex. Consistent with the decoy-triggered enhancement of PI3K/mTOR signaling in these mice, hepatocytes expressing the combinatorial decoy show augmented mitochondrial mass and function. Notably, decoy therapy also ameliorates glucose and lipid homeostasis in both type 1 diabetic and diet-induced, type 2 pre-diabetic, obese male animals. Collectively, our results demonstrate that microRNAs from the miR-379/miR-410 cluster are critical regulators of metabolic homeostasis in the mature liver. Given the preservation of miRNA dysfunction in human obesity, hepatocyte-specific combinatorial inhibition of a large miRNA cluster represents an approach towards multi-parameter improvements in diabetes and obesity.
Additional Links: PMID-42768048
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid42768048,
year = {2026},
author = {Gil-Lozano, M and Simoes, E and Wu, M and Wiedemann, T and Kwon, Y and Sekar, R and Morigny, P and Troullinaki, M and Merl-Pham, J and Buettner, M and Feuchtinger, A and Jouffe, C and Maida, A and Hass, D and Samaga, D and Wolff, G and Machado, J and Giroud, M and Klepac, K and Cummins, CL and Ríos García, M and Weber, P and Zeigerer, A and Uhlenhaut, NH and Szendroedi, J and Blüher, M and Herzig, S},
title = {Combinatorial targeting of the miR-379/miR-410 cluster normalizes glucose and lipid homeostasis in male models of diabetes and obesity.},
journal = {Nature communications},
volume = {17},
number = {1},
pages = {},
pmid = {42768048},
issn = {2041-1723},
support = {03VPO08920/ MIRANDA//Bundesministerium für Bildung und Forschung (Federal Ministry of Education and Research)/ ; 16GW0195K//Bundesministerium für Bildung und Forschung (Federal Ministry of Education and Research)/ ; DZHK Site project 81Z0600103//Bundesministerium für Bildung und Forschung (Federal Ministry of Education and Research)/ ; 16LW0116k//Bundesministerium für Bildung und Forschung (Federal Ministry of Education and Research)/ ; TRR333//Deutsche Forschungsgemeinschaft (German Research Foundation)/ ; ZE1037/1-3//Deutsche Forschungsgemeinschaft (German Research Foundation)/ ; MOP-125900, PJT-156194//Gouvernement du Canada | Canadian Institutes of Health Research (Instituts de Recherche en Santé du Canada)/ ; 01KU1501C//European Foundation for the Study of Diabetes (EFSD)/ ; },
mesh = {Animals ; *MicroRNAs/genetics/metabolism ; Male ; *Obesity/genetics/metabolism ; Homeostasis/genetics ; Humans ; Mice ; *Glucose/metabolism ; *Lipid Metabolism/genetics ; Liver/metabolism ; Hepatocytes/metabolism ; Mice, Inbred C57BL ; Female ; Insulin Resistance ; Signal Transduction ; Disease Models, Animal ; },
abstract = {Non-coding RNAs from the Dlk1-Dio3 locus are critical for the maturation of metabolic tissues in early stages of postnatal development; however, their role in the mature organs remains elusive. Herein, we show that microRNAs from the miR-379/miR-410 cluster are robustly upregulated in livers of subjects with obesity and various mouse models of metabolic dysfunction. Adult-onset, combinatorial inhibition of this miRNA cluster by hepatocyte-specific expression of a decoy sequence reduces triglyceride, total and LDL cholesterol circulating levels, decreases basal glycemia and improves glucose tolerance and insulin sensitivity irrespective of sex. Consistent with the decoy-triggered enhancement of PI3K/mTOR signaling in these mice, hepatocytes expressing the combinatorial decoy show augmented mitochondrial mass and function. Notably, decoy therapy also ameliorates glucose and lipid homeostasis in both type 1 diabetic and diet-induced, type 2 pre-diabetic, obese male animals. Collectively, our results demonstrate that microRNAs from the miR-379/miR-410 cluster are critical regulators of metabolic homeostasis in the mature liver. Given the preservation of miRNA dysfunction in human obesity, hepatocyte-specific combinatorial inhibition of a large miRNA cluster represents an approach towards multi-parameter improvements in diabetes and obesity.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Animals
*MicroRNAs/genetics/metabolism
Male
*Obesity/genetics/metabolism
Homeostasis/genetics
Humans
Mice
*Glucose/metabolism
*Lipid Metabolism/genetics
Liver/metabolism
Hepatocytes/metabolism
Mice, Inbred C57BL
Female
Insulin Resistance
Signal Transduction
Disease Models, Animal
RevDate: 2026-09-22
CmpDate: 2026-09-22
[Clinicopathological characteristics of human epidermal growth factor receptor-2 1+ cases in breast cancer].
Revista medica del Instituto Mexicano del Seguro Social, 64(5):e6875.
BACKGROUND: The expression of the HER2 oncogene has a specific prognostic and therapeutic objective in breast cancer care. Low gene expression, called HER2-low implies the possibility of being a candidate for targeted therapy. However, there is significant variability in its interpretation, hence the importance of emphasizing its proper identification and reporting.
OBJECTIVE: To estimate the proportion of cases confirmed as HER2 1+ among biopsies previously reported as HER2 1+, and to describe their clinicopathological characteristics, as well as the interobserver agreement in their classification.
MATERIALS AND METHODS: Observational, retrospective, and analytical study of cases previously diagnosed as HER2-negative score 1+, which were reviewed by 2 independent pathologists.
RESULTS: 351 cases were included, with a mean age of 59.56 years. The histological subtypes were invasive ductal carcinoma NOS (70.66%), histological grade 2 (56.92%), and SBR score 6 (41.82%), associated in 89.17% of cases with hormone receptor expression. There was agreement for the HER2-low diagnosis in 78.91% of cases, with a Cohen's kappa simple of 0.62, which is similar to some studies documented in the literature.
CONCLUSIONS: Agreement in the interpretation of HER2-low increases when it is performed by at least 2 pathologists; likewise, proper handling of surgical specimens in the pre-analytical phase is vital for optimal assessment, as this has a direct impact on current prognosis and treatment.
Additional Links: PMID-42771801
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid42771801,
year = {2026},
author = {Sánchez-Corona, Y and Quiñonez-Urrego, EE},
title = {[Clinicopathological characteristics of human epidermal growth factor receptor-2 1+ cases in breast cancer].},
journal = {Revista medica del Instituto Mexicano del Seguro Social},
volume = {64},
number = {5},
pages = {e6875},
doi = {10.5281/zenodo.21462775},
pmid = {42771801},
issn = {2448-5667},
mesh = {Humans ; *Breast Neoplasms/pathology/metabolism/diagnosis/genetics ; Female ; *Erb-b2 Receptor Tyrosine Kinases/genetics/metabolism/analysis/biosynthesis ; Retrospective Studies ; Middle Aged ; Aged ; *Carcinoma, Ductal, Breast/pathology/metabolism/diagnosis ; Adult ; Biomarkers, Tumor/metabolism ; },
abstract = {BACKGROUND: The expression of the HER2 oncogene has a specific prognostic and therapeutic objective in breast cancer care. Low gene expression, called HER2-low implies the possibility of being a candidate for targeted therapy. However, there is significant variability in its interpretation, hence the importance of emphasizing its proper identification and reporting.
OBJECTIVE: To estimate the proportion of cases confirmed as HER2 1+ among biopsies previously reported as HER2 1+, and to describe their clinicopathological characteristics, as well as the interobserver agreement in their classification.
MATERIALS AND METHODS: Observational, retrospective, and analytical study of cases previously diagnosed as HER2-negative score 1+, which were reviewed by 2 independent pathologists.
RESULTS: 351 cases were included, with a mean age of 59.56 years. The histological subtypes were invasive ductal carcinoma NOS (70.66%), histological grade 2 (56.92%), and SBR score 6 (41.82%), associated in 89.17% of cases with hormone receptor expression. There was agreement for the HER2-low diagnosis in 78.91% of cases, with a Cohen's kappa simple of 0.62, which is similar to some studies documented in the literature.
CONCLUSIONS: Agreement in the interpretation of HER2-low increases when it is performed by at least 2 pathologists; likewise, proper handling of surgical specimens in the pre-analytical phase is vital for optimal assessment, as this has a direct impact on current prognosis and treatment.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Humans
*Breast Neoplasms/pathology/metabolism/diagnosis/genetics
Female
*Erb-b2 Receptor Tyrosine Kinases/genetics/metabolism/analysis/biosynthesis
Retrospective Studies
Middle Aged
Aged
*Carcinoma, Ductal, Breast/pathology/metabolism/diagnosis
Adult
Biomarkers, Tumor/metabolism
RevDate: 2026-09-21
CmpDate: 2026-09-21
Male breast cancer in Arab populations: a systematic review of molecular, genetic, and clinicopathologic characteristics.
Journal of the Egyptian National Cancer Institute, 38(1):.
BACKGROUND: Male breast cancer (MBC) accounts for less than 1% of all breast cancer cases, yet its incidence is increasing worldwide. Research on MBC remains limited, particularly in Arab populations, where molecular and genetic characteristics are poorly characterized. Improved understanding of MBC biology is essential to support region-specific, biology-driven management strategies.
METHODS: This systematic review was registered in PROSPERO (CRD42024607019) and conducted according to PRISMA guidelines. PubMed, Embase, and Scopus were searched from inception to 28 December 2025. Eligible studies reported MBC cases from Arab countries and included data on molecular subtypes, receptor status, genetic alterations, and/or clinicopathologic characteristics. Data were extracted independently by four reviewers. Risk of bias was assessed using the Joanna Briggs Institute (JBI) critical appraisal tool, and findings were synthesized narratively with harmonization of tumor grade and stage where applicable.
RESULTS: From 9,337 records, 54 studies comprising 1,534 MBC patients met the inclusion criteria. Invasive ductal carcinoma was the predominant histological subtype (92.6%). Among patients with reported intrinsic subtypes (n = 335), luminal A (45.7%) and luminal B (40.9%) accounted for over 86% of cases, whereas HER2-positive (4.8%) and triple-negative (8.4%) tumors were uncommon and triple-positive disease was rare (0.3%). Receptor status was reported for 1,031 patients, with high ER (71.5%) and PR (71.6%) positivity and low HER2 positivity (12.6%), alongside substantial heterogeneity in testing and reporting. Genetic data were available for 59 patients, most frequently identifying pathogenic truncating BRCA2 variants, although BRCA-negative cases were also reported. Surgery was the most reported treatment modality (n = 856), predominantly mastectomy-based, while endocrine therapy was frequently used and HER2-targeted therapy was infrequently reported.
CONCLUSION: MBC in Arab populations is predominantly hormone receptor-driven, characterized by luminal subtypes, high ER/PR positivity, and low HER2 expression. Genetic evidence, though limited, implicates BRCA2 as the most frequently reported susceptibility gene. These findings highlight the need for standardized molecular reporting and broader access to receptor profiling and genetic testing to support personalized, region-specific MBC management.
Additional Links: PMID-42766234
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid42766234,
year = {2026},
author = {Abunasser, S and Al-Taweel, R and Elnatsheh, S and Baraka, A and Al-Ismail, M and Aldosari, WR and Alquran, BA and Abdallah, AM and Al-Haidose, A},
title = {Male breast cancer in Arab populations: a systematic review of molecular, genetic, and clinicopathologic characteristics.},
journal = {Journal of the Egyptian National Cancer Institute},
volume = {38},
number = {1},
pages = {},
pmid = {42766234},
issn = {2589-0409},
support = {QUCG-CHS-25/26-716//Qatar University/ ; QUCG-CHS-25/26-736//Qatar University/ ; },
mesh = {Humans ; Male ; *Breast Neoplasms, Male/genetics/pathology/epidemiology ; *Arabs/genetics/statistics & numerical data ; Erb-b2 Receptor Tyrosine Kinases/metabolism ; Biomarkers, Tumor/genetics ; BRCA2 Protein/genetics ; Receptors, Estrogen/metabolism ; Receptors, Progesterone/metabolism ; },
abstract = {BACKGROUND: Male breast cancer (MBC) accounts for less than 1% of all breast cancer cases, yet its incidence is increasing worldwide. Research on MBC remains limited, particularly in Arab populations, where molecular and genetic characteristics are poorly characterized. Improved understanding of MBC biology is essential to support region-specific, biology-driven management strategies.
METHODS: This systematic review was registered in PROSPERO (CRD42024607019) and conducted according to PRISMA guidelines. PubMed, Embase, and Scopus were searched from inception to 28 December 2025. Eligible studies reported MBC cases from Arab countries and included data on molecular subtypes, receptor status, genetic alterations, and/or clinicopathologic characteristics. Data were extracted independently by four reviewers. Risk of bias was assessed using the Joanna Briggs Institute (JBI) critical appraisal tool, and findings were synthesized narratively with harmonization of tumor grade and stage where applicable.
RESULTS: From 9,337 records, 54 studies comprising 1,534 MBC patients met the inclusion criteria. Invasive ductal carcinoma was the predominant histological subtype (92.6%). Among patients with reported intrinsic subtypes (n = 335), luminal A (45.7%) and luminal B (40.9%) accounted for over 86% of cases, whereas HER2-positive (4.8%) and triple-negative (8.4%) tumors were uncommon and triple-positive disease was rare (0.3%). Receptor status was reported for 1,031 patients, with high ER (71.5%) and PR (71.6%) positivity and low HER2 positivity (12.6%), alongside substantial heterogeneity in testing and reporting. Genetic data were available for 59 patients, most frequently identifying pathogenic truncating BRCA2 variants, although BRCA-negative cases were also reported. Surgery was the most reported treatment modality (n = 856), predominantly mastectomy-based, while endocrine therapy was frequently used and HER2-targeted therapy was infrequently reported.
CONCLUSION: MBC in Arab populations is predominantly hormone receptor-driven, characterized by luminal subtypes, high ER/PR positivity, and low HER2 expression. Genetic evidence, though limited, implicates BRCA2 as the most frequently reported susceptibility gene. These findings highlight the need for standardized molecular reporting and broader access to receptor profiling and genetic testing to support personalized, region-specific MBC management.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Humans
Male
*Breast Neoplasms, Male/genetics/pathology/epidemiology
*Arabs/genetics/statistics & numerical data
Erb-b2 Receptor Tyrosine Kinases/metabolism
Biomarkers, Tumor/genetics
BRCA2 Protein/genetics
Receptors, Estrogen/metabolism
Receptors, Progesterone/metabolism
RevDate: 2021-11-24
CmpDate: 2021-11-24
Impact of RASSF1A gene methylation on clinico-pathological features of tumor and non-tumor tissue of breast cancer.
Annals of diagnostic pathology, 52:151722.
BACKGROUND: Breast cancer is the most common malignancy in women caused by genetic and epigenetic changes. Promoter DNA methylation in tumor suppressor gene plays a major role in breast cancer. The study determined the association of promoter DNA methylation of RASSF1A gene with clinicopathological features in tumor and non-tumor tissue.
MATERIALS AND METHODS: A cross sectional study was conducted in the Department of Pathology, Government Institute of Medical Sciences, Greater Noida and Molecular Pathology Laboratory, Department of Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Medical Sciences. Two sections, one from tumor and the other from non-tumor tissue, were obtained and processed for DNA extraction and bisulphite conversion. Methylation specific PCR was done and results of RASSF1A promoter methylation were statistically correlated with clinicopathological features.
RESULTS: Of the 27 breast cancer tissue, 22 showed invasive ductal carcinoma, one showed invasive lobular carcinoma, another showed ductal carcinoma in situ and three cases showed malignant phyllodes tumor of breast. DNA promoter methylation was found in all the cases. 93% of tumor tissue samples and 67% of the non-tumor tissue samples were found to be aberrantly methylated. Tumor size and histological grade were found to be significantly (p-val <0.05) associated with the RASSF1A gene promoter methylation.
CONCLUSION: A significant association of higher tumor size and tumor histological grade with promoter methylation of RASSF1A gene exists suggestive of its being an important determinant of prognostic staging. This critical event in tumorigenesis may be of clinical utility in assessing breast cancer progression.
MICRO ABSTRACT: The study focuses on the RASSF1A gene promoter methylation and its impact on the clinicopathological features in Indian breast cancer patients highlighting the differences from other genetically different population. We found that RASFF1A gene methylation has significant impact on tumor size and tumor grade. The work carries high significance because it addresses the DNA methylation of tumor suppressor gene in relevance of breast cancer. It may also be the first such report on Indian patients with breast cancer.
Additional Links: PMID-33621744
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33621744,
year = {2021},
author = {Gupta, V and Agarwal, P and Deshpande, P},
title = {Impact of RASSF1A gene methylation on clinico-pathological features of tumor and non-tumor tissue of breast cancer.},
journal = {Annals of diagnostic pathology},
volume = {52},
number = {},
pages = {151722},
doi = {10.1016/j.anndiagpath.2021.151722},
pmid = {33621744},
issn = {1532-8198},
mesh = {Adult ; Aged ; Breast Neoplasms/*genetics/pathology ; Carcinogenesis/genetics/pathology ; Carcinoma, Ductal, Breast/diagnosis/epidemiology/pathology ; Carcinoma, Intraductal, Noninfiltrating/diagnosis/epidemiology/pathology ; Carcinoma, Lobular/diagnosis/epidemiology/pathology ; Cross-Sectional Studies ; DNA Methylation ; Disease Progression ; Epigenesis, Genetic/*genetics ; Female ; Humans ; India/epidemiology ; Middle Aged ; Neoplasm Invasiveness/pathology ; Neoplasm Staging/methods ; Phyllodes Tumor/diagnosis/epidemiology/pathology ; Prognosis ; Promoter Regions, Genetic/*genetics ; Tumor Suppressor Proteins/*genetics ; },
abstract = {BACKGROUND: Breast cancer is the most common malignancy in women caused by genetic and epigenetic changes. Promoter DNA methylation in tumor suppressor gene plays a major role in breast cancer. The study determined the association of promoter DNA methylation of RASSF1A gene with clinicopathological features in tumor and non-tumor tissue.
MATERIALS AND METHODS: A cross sectional study was conducted in the Department of Pathology, Government Institute of Medical Sciences, Greater Noida and Molecular Pathology Laboratory, Department of Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Medical Sciences. Two sections, one from tumor and the other from non-tumor tissue, were obtained and processed for DNA extraction and bisulphite conversion. Methylation specific PCR was done and results of RASSF1A promoter methylation were statistically correlated with clinicopathological features.
RESULTS: Of the 27 breast cancer tissue, 22 showed invasive ductal carcinoma, one showed invasive lobular carcinoma, another showed ductal carcinoma in situ and three cases showed malignant phyllodes tumor of breast. DNA promoter methylation was found in all the cases. 93% of tumor tissue samples and 67% of the non-tumor tissue samples were found to be aberrantly methylated. Tumor size and histological grade were found to be significantly (p-val <0.05) associated with the RASSF1A gene promoter methylation.
CONCLUSION: A significant association of higher tumor size and tumor histological grade with promoter methylation of RASSF1A gene exists suggestive of its being an important determinant of prognostic staging. This critical event in tumorigenesis may be of clinical utility in assessing breast cancer progression.
MICRO ABSTRACT: The study focuses on the RASSF1A gene promoter methylation and its impact on the clinicopathological features in Indian breast cancer patients highlighting the differences from other genetically different population. We found that RASFF1A gene methylation has significant impact on tumor size and tumor grade. The work carries high significance because it addresses the DNA methylation of tumor suppressor gene in relevance of breast cancer. It may also be the first such report on Indian patients with breast cancer.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Breast Neoplasms/*genetics/pathology
Carcinogenesis/genetics/pathology
Carcinoma, Ductal, Breast/diagnosis/epidemiology/pathology
Carcinoma, Intraductal, Noninfiltrating/diagnosis/epidemiology/pathology
Carcinoma, Lobular/diagnosis/epidemiology/pathology
Cross-Sectional Studies
DNA Methylation
Disease Progression
Epigenesis, Genetic/*genetics
Female
Humans
India/epidemiology
Middle Aged
Neoplasm Invasiveness/pathology
Neoplasm Staging/methods
Phyllodes Tumor/diagnosis/epidemiology/pathology
Prognosis
Promoter Regions, Genetic/*genetics
Tumor Suppressor Proteins/*genetics
RevDate: 2022-05-31
CmpDate: 2021-06-23
Prognostic significance of phosphoglycerate dehydrogenase in breast cancer.
Breast cancer research and treatment, 186(3):655-665.
PURPOSE: Breast cancer is the most common type of cancer affecting women worldwide. Phosphoglycerate dehydrogenase (PHGDH) is an oxidoreductase in the serine biosynthesis pathway. Although it has been reported to affect growth of various tumors, its role in breast cancer is largely unknown. This study aimed to analyze the expression of PHGDH in breast cancer tissue samples and to determine if PHGDH regulates breast cancer cell proliferation.
METHODS: Tissue microarrays consisting of 305 cases of breast invasive ductal carcinoma were used for immunohistochemical evaluation of PHGDH expression. The role of PHGDH in breast cancer was investigated in vitro by knocking down its expression and determining the effect on cell proliferation and cell cycling, and in ovo by using a chorioallantoic membrane (CAM) assay.
RESULTS: Immunohistochemical examination showed that PHGDH is mainly localized in the cytoplasm of breast cancer cells and significantly associated with higher cancer grade, larger tumor size, increased PCNA expression, and lymph node positivity. Analysis of the GOBO dataset of 737 patients demonstrated that increased PHGDH expression was associated with poorer overall survival. Knockdown of PHGDH expression in breast cancer cells in vitro resulted in a decrease in cell proliferation, reduction in cells entering the S phase of the cell cycle, and downregulation of various cell cycle regulatory genes. The volume of breast tumor in an in ovo CAM assay was found to be smaller when PHGDH was silenced.
CONCLUSION: The findings suggest that PHGDH has a regulatory role in breast cancer cell proliferation and may be a potential prognostic marker and therapeutic target in breast cancer.
Additional Links: PMID-33625616
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33625616,
year = {2021},
author = {Chandrika, M and Chua, PJ and Muniasamy, U and Huang, RYJ and Thike, AA and Ng, CT and Tan, PH and Yip, GW and Bay, BH},
title = {Prognostic significance of phosphoglycerate dehydrogenase in breast cancer.},
journal = {Breast cancer research and treatment},
volume = {186},
number = {3},
pages = {655-665},
pmid = {33625616},
issn = {1573-7217},
support = {NMRC/CIRG/1370/2013//National Medical Research Council/ ; },
mesh = {*Breast Neoplasms/genetics ; Cell Line, Tumor ; Cell Proliferation ; Female ; Humans ; *Phosphoglycerate Dehydrogenase/genetics ; Prognosis ; Serine ; },
abstract = {PURPOSE: Breast cancer is the most common type of cancer affecting women worldwide. Phosphoglycerate dehydrogenase (PHGDH) is an oxidoreductase in the serine biosynthesis pathway. Although it has been reported to affect growth of various tumors, its role in breast cancer is largely unknown. This study aimed to analyze the expression of PHGDH in breast cancer tissue samples and to determine if PHGDH regulates breast cancer cell proliferation.
METHODS: Tissue microarrays consisting of 305 cases of breast invasive ductal carcinoma were used for immunohistochemical evaluation of PHGDH expression. The role of PHGDH in breast cancer was investigated in vitro by knocking down its expression and determining the effect on cell proliferation and cell cycling, and in ovo by using a chorioallantoic membrane (CAM) assay.
RESULTS: Immunohistochemical examination showed that PHGDH is mainly localized in the cytoplasm of breast cancer cells and significantly associated with higher cancer grade, larger tumor size, increased PCNA expression, and lymph node positivity. Analysis of the GOBO dataset of 737 patients demonstrated that increased PHGDH expression was associated with poorer overall survival. Knockdown of PHGDH expression in breast cancer cells in vitro resulted in a decrease in cell proliferation, reduction in cells entering the S phase of the cell cycle, and downregulation of various cell cycle regulatory genes. The volume of breast tumor in an in ovo CAM assay was found to be smaller when PHGDH was silenced.
CONCLUSION: The findings suggest that PHGDH has a regulatory role in breast cancer cell proliferation and may be a potential prognostic marker and therapeutic target in breast cancer.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Breast Neoplasms/genetics
Cell Line, Tumor
Cell Proliferation
Female
Humans
*Phosphoglycerate Dehydrogenase/genetics
Prognosis
Serine
RevDate: 2021-10-04
CmpDate: 2021-10-04
Association between BRCA2 alterations and intraductal and cribriform histologies in prostate cancer.
European journal of cancer (Oxford, England : 1990), 147:74-83.
BACKGROUND: Intraductal (IDC) and cribriform (CRIB) histologies in prostate cancer have been associated with germline BRCA2 (gBRCA2) mutations in small retrospective series, leading to the recommendation of genetic testing for patients with IDC in the primary tumour.
PATIENTS AND METHODS: To examine the association of gBRCA2 mutations and other tumour molecular features with IDC and/or cribriform (CRIB) histologies, we conducted a case-control study in which primary prostate tumours from 58 gBRCA2 carriers were matched (1:2) by Gleason Grade Group and specimen type to 116 non-carriers. Presence/absence of IDC and CRIB morphologies was established by two expert uropathologists blinded to gBRCA2 status. Fluorescent in-situ hybridization (FISH) and next-generation sequencing (NGS) were used to detect BRCA2 alterations, PTEN deletions and TMPRSS2-ERG fusions. Chi-squared tests were used to compare the frequency of IDC and CRIB in gBRCA2 carriers and controls and to assess associations with other variables. Logistic regression models were constructed to identify independent factors associated with both histology patterns.
RESULTS: No significant differences between gBRCA2 carriers and non-carriers were observed in the prevalence of IDC (36% gBRCA2 versus 50% non-carriers, p = 0.085) or CRIB (53% gBRCA2 versus 43% non-carriers p = 0.197) patterns. However, IDC histology was independently associated with bi-allelic BRCA2 alterations (OR 4.3, 95%CI 1.1-16.2) and PTEN homozygous loss (OR 5.2, 95%CI 2.1-13.1). CRIB morphology was also independently associated with bi-allelic BRCA2 alterations (OR 5.6, 95%CI 1.7-19.3).
CONCLUSIONS: While we found no association between gBRCA2 mutations and IDC or CRIB histologies, bi-allelic BRCA2 loss in primary prostate tumours was significantly associated with both variant morphologies, independently of other clinical-pathologic factors.
Additional Links: PMID-33626496
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33626496,
year = {2021},
author = {Lozano, R and Salles, DC and Sandhu, S and Aragón, IM and Thorne, H and López-Campos, F and Rubio-Briones, J and Gutierrez-Pecharroman, AM and Maldonado, L and di Domenico, T and Sanz, A and Prieto, JD and García, I and Pacheco, MI and Garcés, T and Llacer, C and Romero-Laorden, N and Zambrana, F and López-Casas, PP and Lorente, D and Mateo, J and Pritchard, CC and Antonarakis, ES and Olmos, D and Lotan, TL and Castro, E},
title = {Association between BRCA2 alterations and intraductal and cribriform histologies in prostate cancer.},
journal = {European journal of cancer (Oxford, England : 1990)},
volume = {147},
number = {},
pages = {74-83},
doi = {10.1016/j.ejca.2021.01.027},
pmid = {33626496},
issn = {1879-0852},
support = {R01 CA185297/CA/NCI NIH HHS/United States ; },
mesh = {Adult ; Aged ; Aged, 80 and over ; BRCA2 Protein/*genetics ; Biomarkers, Tumor/*genetics ; Case-Control Studies ; DNA Mutational Analysis ; Gene Deletion ; Genetic Predisposition to Disease ; Humans ; Male ; Middle Aged ; *Mutation ; Neoplasm Grading ; PTEN Phosphohydrolase/genetics ; Phenotype ; Prostatic Neoplasms/*genetics/pathology ; Risk Assessment ; Risk Factors ; Spain ; },
abstract = {BACKGROUND: Intraductal (IDC) and cribriform (CRIB) histologies in prostate cancer have been associated with germline BRCA2 (gBRCA2) mutations in small retrospective series, leading to the recommendation of genetic testing for patients with IDC in the primary tumour.
PATIENTS AND METHODS: To examine the association of gBRCA2 mutations and other tumour molecular features with IDC and/or cribriform (CRIB) histologies, we conducted a case-control study in which primary prostate tumours from 58 gBRCA2 carriers were matched (1:2) by Gleason Grade Group and specimen type to 116 non-carriers. Presence/absence of IDC and CRIB morphologies was established by two expert uropathologists blinded to gBRCA2 status. Fluorescent in-situ hybridization (FISH) and next-generation sequencing (NGS) were used to detect BRCA2 alterations, PTEN deletions and TMPRSS2-ERG fusions. Chi-squared tests were used to compare the frequency of IDC and CRIB in gBRCA2 carriers and controls and to assess associations with other variables. Logistic regression models were constructed to identify independent factors associated with both histology patterns.
RESULTS: No significant differences between gBRCA2 carriers and non-carriers were observed in the prevalence of IDC (36% gBRCA2 versus 50% non-carriers, p = 0.085) or CRIB (53% gBRCA2 versus 43% non-carriers p = 0.197) patterns. However, IDC histology was independently associated with bi-allelic BRCA2 alterations (OR 4.3, 95%CI 1.1-16.2) and PTEN homozygous loss (OR 5.2, 95%CI 2.1-13.1). CRIB morphology was also independently associated with bi-allelic BRCA2 alterations (OR 5.6, 95%CI 1.7-19.3).
CONCLUSIONS: While we found no association between gBRCA2 mutations and IDC or CRIB histologies, bi-allelic BRCA2 loss in primary prostate tumours was significantly associated with both variant morphologies, independently of other clinical-pathologic factors.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Aged, 80 and over
BRCA2 Protein/*genetics
Biomarkers, Tumor/*genetics
Case-Control Studies
DNA Mutational Analysis
Gene Deletion
Genetic Predisposition to Disease
Humans
Male
Middle Aged
*Mutation
Neoplasm Grading
PTEN Phosphohydrolase/genetics
Phenotype
Prostatic Neoplasms/*genetics/pathology
Risk Assessment
Risk Factors
Spain
RevDate: 2022-04-20
Chyle Leak after Right Axillary Lymph Node Dissection in a Patient with Breast Cancer.
Case reports in surgery, 2021:8812315.
BACKGROUND: A female patient was diagnosed with a right-sided chyle leak following right skin sparing mastectomy, axillary lymph node dissection, and immediate tissue expander placement in the setting of invasive ductal carcinoma status post neoadjuvant chemotherapy. Summary. Our patient underwent a level I and II right axillary lymph node dissection followed by an axillary drain placement. On the first postoperative day, a change from serosanguinous to milky fluid in this drain was noted. The patient was diagnosed with a chyle leak based on the milky appearance and elevated triglyceride levels in the fluid. While chyle leaks are rare after an axillary dissection and even rarer to present on the right side, it is a complication of which breast surgeons should be aware. The cause of this complication is thought to be due to injury of the main thoracic duct, its branches, the subclavian duct, or its tributaries. Management is usually conservative; however, awareness of this potential complication even on the right side is of the utmost importance.
CONCLUSION: Chyle leaks are an uncommon complication of axillary node dissections and even rarer for them to present on the right side. It can be diagnosed by monitoring the drainage for changes in appearance and volume and by conducting supporting laboratory tests. Conservative management is generally suggested.
Additional Links: PMID-33628571
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33628571,
year = {2021},
author = {Sarawagi, A and Maxwell, J},
title = {Chyle Leak after Right Axillary Lymph Node Dissection in a Patient with Breast Cancer.},
journal = {Case reports in surgery},
volume = {2021},
number = {},
pages = {8812315},
pmid = {33628571},
issn = {2090-6900},
abstract = {BACKGROUND: A female patient was diagnosed with a right-sided chyle leak following right skin sparing mastectomy, axillary lymph node dissection, and immediate tissue expander placement in the setting of invasive ductal carcinoma status post neoadjuvant chemotherapy. Summary. Our patient underwent a level I and II right axillary lymph node dissection followed by an axillary drain placement. On the first postoperative day, a change from serosanguinous to milky fluid in this drain was noted. The patient was diagnosed with a chyle leak based on the milky appearance and elevated triglyceride levels in the fluid. While chyle leaks are rare after an axillary dissection and even rarer to present on the right side, it is a complication of which breast surgeons should be aware. The cause of this complication is thought to be due to injury of the main thoracic duct, its branches, the subclavian duct, or its tributaries. Management is usually conservative; however, awareness of this potential complication even on the right side is of the utmost importance.
CONCLUSION: Chyle leaks are an uncommon complication of axillary node dissections and even rarer for them to present on the right side. It can be diagnosed by monitoring the drainage for changes in appearance and volume and by conducting supporting laboratory tests. Conservative management is generally suggested.},
}
RevDate: 2021-07-05
CmpDate: 2021-07-05
Comprehensive Review of Molecular Mechanisms and Clinical Features of Invasive Lobular Cancer.
The oncologist, 26(6):e943-e953.
Invasive lobular carcinoma (ILC) accounts for 10% to 15% of breast cancers in the United States, 80% of which are estrogen receptor (ER)-positive, with an unusual metastatic pattern of spread to sites such as the serosa, meninges, and ovaries, among others. Lobular cancer presents significant challenges in detection and clinical management given its multifocality and multicentricity at presentation. Despite the unique features of ILC, it is often lumped with hormone receptor-positive invasive ductal cancers (IDC); consequently, ILC screening, treatment, and follow-up strategies are largely based on data from IDC. Despite both being treated as ER-positive breast cancer, querying the Cancer Genome Atlas database shows distinctive molecular aberrations in ILC compared with IDC, such as E-cadherin loss (66% vs. 3%), FOXA1 mutations (7% vs. 2%), and GATA3 mutations (5% vs. 20%). Moreover, compared with patients with IDC, patients with ILC are less likely to undergo breast-conserving surgery, with lower rates of complete response following therapy as these tumors are less chemosensitive. Taken together, this suggests that ILC is biologically distinct, which may influence tumorigenesis and therapeutic strategies. Long-term survival and clinical outcomes in patients with ILC are worse than in stage- and grade-matched patients with IDC; therefore, nuanced criteria are needed to better define treatment goals and protocols tailored to ILC's unique biology. This comprehensive review highlights the histologic and clinicopathologic features that distinguish ILC from IDC, with an in-depth discussion of ILC's molecular alterations and biomarkers, clinical trials and treatment strategies, and future targets for therapy. IMPLICATIONS FOR PRACTICE: The majority of invasive lobular breast cancers (ILCs) are hormone receptor (HR)-positive and low grade. Clinically, ILC is treated similar to HR-positive invasive ductal cancer (IDC). However, ILC differs distinctly from IDC in its clinicopathologic characteristics and molecular alterations. ILC also differs in response to systemic therapy, with studies showing ILC as less sensitive to chemotherapy. Patients with ILC have worse clinical outcomes with late recurrences. Despite these differences, clinical trials treat HR-positive breast cancers as a single disease, and there is an unmet need for studies addressing the unique challenges faced by patients diagnosed with ILC.
Additional Links: PMID-33641217
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33641217,
year = {2021},
author = {Pramod, N and Nigam, A and Basree, M and Mawalkar, R and Mehra, S and Shinde, N and Tozbikian, G and Williams, N and Majumder, S and Ramaswamy, B},
title = {Comprehensive Review of Molecular Mechanisms and Clinical Features of Invasive Lobular Cancer.},
journal = {The oncologist},
volume = {26},
number = {6},
pages = {e943-e953},
pmid = {33641217},
issn = {1549-490X},
mesh = {*Breast Neoplasms/genetics/surgery ; *Carcinoma, Ductal, Breast ; *Carcinoma, Lobular/genetics/therapy ; Female ; Humans ; Mastectomy, Segmental ; },
abstract = {Invasive lobular carcinoma (ILC) accounts for 10% to 15% of breast cancers in the United States, 80% of which are estrogen receptor (ER)-positive, with an unusual metastatic pattern of spread to sites such as the serosa, meninges, and ovaries, among others. Lobular cancer presents significant challenges in detection and clinical management given its multifocality and multicentricity at presentation. Despite the unique features of ILC, it is often lumped with hormone receptor-positive invasive ductal cancers (IDC); consequently, ILC screening, treatment, and follow-up strategies are largely based on data from IDC. Despite both being treated as ER-positive breast cancer, querying the Cancer Genome Atlas database shows distinctive molecular aberrations in ILC compared with IDC, such as E-cadherin loss (66% vs. 3%), FOXA1 mutations (7% vs. 2%), and GATA3 mutations (5% vs. 20%). Moreover, compared with patients with IDC, patients with ILC are less likely to undergo breast-conserving surgery, with lower rates of complete response following therapy as these tumors are less chemosensitive. Taken together, this suggests that ILC is biologically distinct, which may influence tumorigenesis and therapeutic strategies. Long-term survival and clinical outcomes in patients with ILC are worse than in stage- and grade-matched patients with IDC; therefore, nuanced criteria are needed to better define treatment goals and protocols tailored to ILC's unique biology. This comprehensive review highlights the histologic and clinicopathologic features that distinguish ILC from IDC, with an in-depth discussion of ILC's molecular alterations and biomarkers, clinical trials and treatment strategies, and future targets for therapy. IMPLICATIONS FOR PRACTICE: The majority of invasive lobular breast cancers (ILCs) are hormone receptor (HR)-positive and low grade. Clinically, ILC is treated similar to HR-positive invasive ductal cancer (IDC). However, ILC differs distinctly from IDC in its clinicopathologic characteristics and molecular alterations. ILC also differs in response to systemic therapy, with studies showing ILC as less sensitive to chemotherapy. Patients with ILC have worse clinical outcomes with late recurrences. Despite these differences, clinical trials treat HR-positive breast cancers as a single disease, and there is an unmet need for studies addressing the unique challenges faced by patients diagnosed with ILC.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Breast Neoplasms/genetics/surgery
*Carcinoma, Ductal, Breast
*Carcinoma, Lobular/genetics/therapy
Female
Humans
Mastectomy, Segmental
RevDate: 2021-05-06
CmpDate: 2021-03-11
Impact of delayed patient flow on surgical outcomes after hip fracture: An observational study.
European journal of anaesthesiology, 38 Suppl 1:S67-S68.
Additional Links: PMID-33645934
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33645934,
year = {2021},
author = {Da Costa, I and Belnou, P and Soulier, A and Lapidus, N and Tsai, ES and Bourcier, E and Moisi, L and Sautet, A and Bonnet, F and Lescot, T and Verdonk, F},
title = {Impact of delayed patient flow on surgical outcomes after hip fracture: An observational study.},
journal = {European journal of anaesthesiology},
volume = {38 Suppl 1},
number = {},
pages = {S67-S68},
doi = {10.1097/EJA.0000000000001271},
pmid = {33645934},
issn = {1365-2346},
mesh = {Aged ; Aged, 80 and over ; Female ; France/epidemiology ; Hemorrhage/*epidemiology/etiology ; Hip Fractures/complications/*surgery ; Humans ; Male ; Middle Aged ; Outcome Assessment, Health Care ; Postoperative Complications/epidemiology ; Recovery of Function/*physiology ; Time Factors ; Time-to-Treatment/*statistics & numerical data ; Treatment Outcome ; },
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Aged
Aged, 80 and over
Female
France/epidemiology
Hemorrhage/*epidemiology/etiology
Hip Fractures/complications/*surgery
Humans
Male
Middle Aged
Outcome Assessment, Health Care
Postoperative Complications/epidemiology
Recovery of Function/*physiology
Time Factors
Time-to-Treatment/*statistics & numerical data
Treatment Outcome
RevDate: 2021-10-11
CmpDate: 2021-10-11
The overexpression of DNA repair genes in invasive ductal and lobular breast carcinomas: Insights on individual variations and precision medicine.
PloS one, 16(3):e0247837.
In the era of precision medicine, analyzing the transcriptomic profile of patients is essential to tailor the appropriate therapy. In this study, we explored transcriptional differences between two invasive breast cancer subtypes; infiltrating ductal carcinoma (IDC) and lobular carcinoma (LC) using RNA-Seq data deposited in the TCGA-BRCA project. We revealed 3854 differentially expressed genes between normal ductal tissues and IDC. In addition, IDC to LC comparison resulted in 663 differentially expressed genes. We then focused on DNA repair genes because of their known effects on patients' response to therapy and resistance. We here report that 36 DNA repair genes are overexpressed in a significant number of both IDC and LC patients' samples. Despite the upregulation in a significant number of samples, we observed a noticeable variation in the expression levels of the repair genes across patients of the same cancer subtype. The same trend is valid for the expression of miRNAs, where remarkable variations between patients' samples of the same cancer subtype are also observed. These individual variations could lie behind the differential response of patients to treatment. The future of cancer diagnostics and therapy will inevitably depend on high-throughput genomic and transcriptomic data analysis. However, we propose that performing analysis on individual patients rather than a big set of patients' samples will be necessary to ensure that the best treatment is determined, and therapy resistance is reduced.
Additional Links: PMID-33662042
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33662042,
year = {2021},
author = {Mohamed, RI and Bargal, SA and Mekawy, AS and El-Shiekh, I and Tuncbag, N and Ahmed, AS and Badr, E and Elserafy, M},
title = {The overexpression of DNA repair genes in invasive ductal and lobular breast carcinomas: Insights on individual variations and precision medicine.},
journal = {PloS one},
volume = {16},
number = {3},
pages = {e0247837},
pmid = {33662042},
issn = {1932-6203},
mesh = {Breast Neoplasms/*genetics ; Carcinoma, Ductal, Breast/*genetics ; Carcinoma, Lobular/*genetics ; *DNA Repair ; Female ; *Gene Expression Regulation, Neoplastic ; Humans ; MicroRNAs/genetics ; Precision Medicine ; Transcriptome ; Up-Regulation ; },
abstract = {In the era of precision medicine, analyzing the transcriptomic profile of patients is essential to tailor the appropriate therapy. In this study, we explored transcriptional differences between two invasive breast cancer subtypes; infiltrating ductal carcinoma (IDC) and lobular carcinoma (LC) using RNA-Seq data deposited in the TCGA-BRCA project. We revealed 3854 differentially expressed genes between normal ductal tissues and IDC. In addition, IDC to LC comparison resulted in 663 differentially expressed genes. We then focused on DNA repair genes because of their known effects on patients' response to therapy and resistance. We here report that 36 DNA repair genes are overexpressed in a significant number of both IDC and LC patients' samples. Despite the upregulation in a significant number of samples, we observed a noticeable variation in the expression levels of the repair genes across patients of the same cancer subtype. The same trend is valid for the expression of miRNAs, where remarkable variations between patients' samples of the same cancer subtype are also observed. These individual variations could lie behind the differential response of patients to treatment. The future of cancer diagnostics and therapy will inevitably depend on high-throughput genomic and transcriptomic data analysis. However, we propose that performing analysis on individual patients rather than a big set of patients' samples will be necessary to ensure that the best treatment is determined, and therapy resistance is reduced.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Breast Neoplasms/*genetics
Carcinoma, Ductal, Breast/*genetics
Carcinoma, Lobular/*genetics
*DNA Repair
Female
*Gene Expression Regulation, Neoplastic
Humans
MicroRNAs/genetics
Precision Medicine
Transcriptome
Up-Regulation
RevDate: 2026-01-27
CmpDate: 2021-05-03
Trastuzumab Emtansine (T-DM1) and stereotactic radiation in the management of HER2+ breast cancer brain metastases.
BMC cancer, 21(1):223.
BACKGROUND: Due to recent concerns about the toxicity of trastuzumab emtansine (T-DM1) with stereotactic radiation, we assessed our institutional outcomes treating HER2-positive breast cancer brain metastases (BCBM) with T-DM1 and stereotactic radiation.
METHODS: This is a single institution series of 16 patients with HER2-positive breast cancer who underwent 18 stereotactic sessions to 40 BCBM from 2013 to 2019 with T-DM1 delivered within 6 months. The Kaplan-Meier method was used to calculate overall survival (OS), local control (LC), distant intracranial control (DIC), and systemic progression-free survival (sPFS) from the date of SRS. A neuro-radiologist independently reviewed follow-up imaging.
RESULTS: One patient had invasive lobular carcinoma, and 15 patients had invasive ductal carcinoma. All cases were HER2-positive, while 10 were hormone receptor (HR) positive. Twenty-four lesions were treated with stereotactic radiosurgery (SRS) to a median dose of 21 Gy (14-24 Gy). Sixteen lesions were treated with fractionated stereotactic radiation (FSRT) with a median dose of 25 Gy (20-30Gy) delivered in 3 to 5 fractions. Stereotactic radiation was delivered concurrently with T-DM1 in 19 lesions (48%). Median follow up time was 13.2 months from stereotactic radiation. The 1-year LC, DIC, sPFS, and OS were 75, 50, 30, and 67%, respectively. There was 1 case of leptomeningeal progression and 1 case (3%) of symptomatic radionecrosis.
CONCLUSIONS: We demonstrate that stereotactic radiation and T-DM1 is well-tolerated and effective for patients with HER2-positive BCBM. An increased risk for symptomatic radiation necrosis was not noted in our series.
Additional Links: PMID-33663447
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33663447,
year = {2021},
author = {Mills, MN and Walker, C and Thawani, C and Naz, A and Figura, NB and Kushchayev, S and Etame, A and Yu, HM and Robinson, TJ and Liu, J and Vogelbaum, MA and Forsyth, PA and Czerniecki, BJ and Soliman, HH and Han, HS and Ahmed, KA},
title = {Trastuzumab Emtansine (T-DM1) and stereotactic radiation in the management of HER2+ breast cancer brain metastases.},
journal = {BMC cancer},
volume = {21},
number = {1},
pages = {223},
pmid = {33663447},
issn = {1471-2407},
mesh = {Ado-Trastuzumab Emtansine/adverse effects/*therapeutic use ; Adult ; Aged ; Aged, 80 and over ; Brain/pathology ; Brain Neoplasms/*secondary ; Breast Neoplasms/chemistry/mortality/pathology/*therapy ; Combined Modality Therapy ; Female ; Humans ; Middle Aged ; Necrosis ; *Radiosurgery/adverse effects ; Radiotherapy Dosage ; Erb-b2 Receptor Tyrosine Kinases/*analysis ; },
abstract = {BACKGROUND: Due to recent concerns about the toxicity of trastuzumab emtansine (T-DM1) with stereotactic radiation, we assessed our institutional outcomes treating HER2-positive breast cancer brain metastases (BCBM) with T-DM1 and stereotactic radiation.
METHODS: This is a single institution series of 16 patients with HER2-positive breast cancer who underwent 18 stereotactic sessions to 40 BCBM from 2013 to 2019 with T-DM1 delivered within 6 months. The Kaplan-Meier method was used to calculate overall survival (OS), local control (LC), distant intracranial control (DIC), and systemic progression-free survival (sPFS) from the date of SRS. A neuro-radiologist independently reviewed follow-up imaging.
RESULTS: One patient had invasive lobular carcinoma, and 15 patients had invasive ductal carcinoma. All cases were HER2-positive, while 10 were hormone receptor (HR) positive. Twenty-four lesions were treated with stereotactic radiosurgery (SRS) to a median dose of 21 Gy (14-24 Gy). Sixteen lesions were treated with fractionated stereotactic radiation (FSRT) with a median dose of 25 Gy (20-30Gy) delivered in 3 to 5 fractions. Stereotactic radiation was delivered concurrently with T-DM1 in 19 lesions (48%). Median follow up time was 13.2 months from stereotactic radiation. The 1-year LC, DIC, sPFS, and OS were 75, 50, 30, and 67%, respectively. There was 1 case of leptomeningeal progression and 1 case (3%) of symptomatic radionecrosis.
CONCLUSIONS: We demonstrate that stereotactic radiation and T-DM1 is well-tolerated and effective for patients with HER2-positive BCBM. An increased risk for symptomatic radiation necrosis was not noted in our series.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Ado-Trastuzumab Emtansine/adverse effects/*therapeutic use
Adult
Aged
Aged, 80 and over
Brain/pathology
Brain Neoplasms/*secondary
Breast Neoplasms/chemistry/mortality/pathology/*therapy
Combined Modality Therapy
Female
Humans
Middle Aged
Necrosis
*Radiosurgery/adverse effects
Radiotherapy Dosage
Erb-b2 Receptor Tyrosine Kinases/*analysis
RevDate: 2023-11-11
CmpDate: 2021-10-25
Combination therapies induce cancer cell death through the integrated stress response and disturbed pyrimidine metabolism.
EMBO molecular medicine, 13(4):e12461.
By accentuating drug efficacy and impeding resistance mechanisms, combinatorial, multi-agent therapies have emerged as key approaches in the treatment of complex diseases, most notably cancer. Using high-throughput drug screens, we uncovered distinct metabolic vulnerabilities and thereby identified drug combinations synergistically causing a starvation-like lethal catabolic response in tumor cells from different cancer entities. Domperidone, a dopamine receptor antagonist, as well as several tricyclic antidepressants (TCAs), including imipramine, induced cancer cell death in combination with the mitochondrial uncoupler niclosamide ethanolamine (NEN) through activation of the integrated stress response pathway and the catabolic CLEAR network. Using transcriptome and metabolome analyses, we characterized a combinatorial response, mainly driven by the transcription factors CHOP and TFE3, which resulted in cell death through enhanced pyrimidine catabolism as well as reduced pyrimidine synthesis. Remarkably, the drug combinations sensitized human organoid cultures to the standard-of-care chemotherapy paclitaxel. Thus, our combinatorial approach could be clinically implemented into established treatment regimen, which would be further facilitated by the advantages of drug repurposing.
Additional Links: PMID-33665961
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33665961,
year = {2021},
author = {Hartleben, G and Schorpp, K and Kwon, Y and Betz, B and Tsokanos, FF and Dantes, Z and Schäfer, A and Rothenaigner, I and Monroy Kuhn, JM and Morigny, P and Mehr, L and Lin, S and Seitz, S and Tokarz, J and Artati, A and Adamsky, J and Plettenburg, O and Lutter, D and Irmler, M and Beckers, J and Reichert, M and Hadian, K and Zeigerer, A and Herzig, S and Berriel Diaz, M},
title = {Combination therapies induce cancer cell death through the integrated stress response and disturbed pyrimidine metabolism.},
journal = {EMBO molecular medicine},
volume = {13},
number = {4},
pages = {e12461},
pmid = {33665961},
issn = {1757-4684},
mesh = {*Antineoplastic Agents ; Cell Death ; Humans ; *Neoplasms ; Niclosamide ; Pyrimidines ; },
abstract = {By accentuating drug efficacy and impeding resistance mechanisms, combinatorial, multi-agent therapies have emerged as key approaches in the treatment of complex diseases, most notably cancer. Using high-throughput drug screens, we uncovered distinct metabolic vulnerabilities and thereby identified drug combinations synergistically causing a starvation-like lethal catabolic response in tumor cells from different cancer entities. Domperidone, a dopamine receptor antagonist, as well as several tricyclic antidepressants (TCAs), including imipramine, induced cancer cell death in combination with the mitochondrial uncoupler niclosamide ethanolamine (NEN) through activation of the integrated stress response pathway and the catabolic CLEAR network. Using transcriptome and metabolome analyses, we characterized a combinatorial response, mainly driven by the transcription factors CHOP and TFE3, which resulted in cell death through enhanced pyrimidine catabolism as well as reduced pyrimidine synthesis. Remarkably, the drug combinations sensitized human organoid cultures to the standard-of-care chemotherapy paclitaxel. Thus, our combinatorial approach could be clinically implemented into established treatment regimen, which would be further facilitated by the advantages of drug repurposing.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Antineoplastic Agents
Cell Death
Humans
*Neoplasms
Niclosamide
Pyrimidines
RevDate: 2024-06-27
CmpDate: 2021-10-15
Molecular analysis of encapsulated papillary carcinoma of the breast with and without invasion.
Human pathology, 111:67-74.
Encapsulated papillary carcinomas (EPCs) of the breast are a unique variant of papillary carcinoma confined to a cystic space with absent or attenuated myoepithelial cell layer. Although staged as an in situ lesion, it can be associated with invasive ductal carcinoma (IDC). We sought to compare the genomic characteristics of pure EPC and EPC with associated invasive carcinoma (EPCi) at the genomic level. All cases of EPCi harbored recurrent hotspot mutations in PIK3CA. PIK3CA, KMT2A, and CREBBP deleterious somatic events were found across both tumor groups, irrespective of invasion status. At the whole transcriptomic level, EPCi cases displayed remarkably similar mRNA profiles when compared to EPC. When EPCi cases were compared with their corresponding IDC, despite significant overlap, we identified differential gene expression in 39 genes with enrichment of multiple pathways including extracellular matrix regulation, cell adhesion, and collagen fibril organization. Despite morphologic, genotypic, and transcriptomic overlap between pure EPC and EPCi, the latter tumors are likely advanced lesions with PIK3CA activating mutations and enrichment of stromal-related genes implicated in the switch to IDC.
Additional Links: PMID-33667422
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33667422,
year = {2021},
author = {Schwartz, CJ and Boroujeni, AM and Khodadadi-Jamayran, A and Heguy, A and Snuderl, M and Jour, G and Cotzia, P and Darvishian, F},
title = {Molecular analysis of encapsulated papillary carcinoma of the breast with and without invasion.},
journal = {Human pathology},
volume = {111},
number = {},
pages = {67-74},
doi = {10.1016/j.humpath.2021.02.005},
pmid = {33667422},
issn = {1532-8392},
support = {P30 CA016087/CA/NCI NIH HHS/United States ; },
mesh = {Aged ; Aged, 80 and over ; Biomarkers, Tumor/genetics ; Breast Neoplasms/*genetics/*pathology ; Carcinoma, Ductal, Breast/*genetics/*pathology ; Carcinoma, Papillary/*genetics/*pathology ; Class I Phosphatidylinositol 3-Kinases/genetics ; Female ; Humans ; Middle Aged ; Mutation ; Retrospective Studies ; },
abstract = {Encapsulated papillary carcinomas (EPCs) of the breast are a unique variant of papillary carcinoma confined to a cystic space with absent or attenuated myoepithelial cell layer. Although staged as an in situ lesion, it can be associated with invasive ductal carcinoma (IDC). We sought to compare the genomic characteristics of pure EPC and EPC with associated invasive carcinoma (EPCi) at the genomic level. All cases of EPCi harbored recurrent hotspot mutations in PIK3CA. PIK3CA, KMT2A, and CREBBP deleterious somatic events were found across both tumor groups, irrespective of invasion status. At the whole transcriptomic level, EPCi cases displayed remarkably similar mRNA profiles when compared to EPC. When EPCi cases were compared with their corresponding IDC, despite significant overlap, we identified differential gene expression in 39 genes with enrichment of multiple pathways including extracellular matrix regulation, cell adhesion, and collagen fibril organization. Despite morphologic, genotypic, and transcriptomic overlap between pure EPC and EPCi, the latter tumors are likely advanced lesions with PIK3CA activating mutations and enrichment of stromal-related genes implicated in the switch to IDC.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Aged
Aged, 80 and over
Biomarkers, Tumor/genetics
Breast Neoplasms/*genetics/*pathology
Carcinoma, Ductal, Breast/*genetics/*pathology
Carcinoma, Papillary/*genetics/*pathology
Class I Phosphatidylinositol 3-Kinases/genetics
Female
Humans
Middle Aged
Mutation
Retrospective Studies
RevDate: 2022-04-01
CmpDate: 2022-03-31
miR-646/TET1 mediated demethylation of IRX1 promoter upregulates HIST2H2BE and promotes the progression of invasive ductal carcinoma.
Genomics, 113(3):1469-1481.
BACKGROUND: This study aimed to explore role of miR-646 in breast IDC.
METHODS: miR-646, TET1, IRX1, and HIST2H2BE expression was detected by RT-qPCR and/or Western blot analysis. The methylation status of IRX1 promoter region was evaluated by methylation specific PCR. ChIP assay was used to determine the enrichment of TET1 at IRX1 promoter region. Loss- and gain-of functions were performed to determine the roles of miR-646, TET1, IRX1, and HIST2H2BE in cell proliferation, migration, invasion, and apoptosis. The tumor growth, volume, weight, and apoptosis status were measured.
RESULTS: miR-646 was upregulated while TET1 was downregulated in IDC tissues. miR-646 targeted TET1. Downregulated TET1 impairs demethylation of IRX1 promoter region resulting in reduced expression of IRX1, which subsequently leads to upregulation of HIST2H2BE in IDC. Consequently, elevated HIST2H2BE promotes progression of IDC.
CONCLUSION: Our study has demonstrated that miR-646 facilitates the tumorigenesis of IDC via regulating TET1/IRX1/HIST2H2BE axis.
Additional Links: PMID-33667646
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33667646,
year = {2021},
author = {He, B and Chen, J and Song, W and Bai, Y},
title = {miR-646/TET1 mediated demethylation of IRX1 promoter upregulates HIST2H2BE and promotes the progression of invasive ductal carcinoma.},
journal = {Genomics},
volume = {113},
number = {3},
pages = {1469-1481},
doi = {10.1016/j.ygeno.2020.12.044},
pmid = {33667646},
issn = {1089-8646},
mesh = {*Carcinoma, Ductal ; Cell Line, Tumor ; DNA Methylation ; Demethylation ; Gene Expression Regulation, Neoplastic ; Homeodomain Proteins/genetics/metabolism ; Humans ; *MicroRNAs/genetics/metabolism ; Mixed Function Oxygenases/genetics/metabolism ; Promoter Regions, Genetic ; Proto-Oncogene Proteins/genetics/metabolism ; Transcription Factors/genetics/metabolism ; },
abstract = {BACKGROUND: This study aimed to explore role of miR-646 in breast IDC.
METHODS: miR-646, TET1, IRX1, and HIST2H2BE expression was detected by RT-qPCR and/or Western blot analysis. The methylation status of IRX1 promoter region was evaluated by methylation specific PCR. ChIP assay was used to determine the enrichment of TET1 at IRX1 promoter region. Loss- and gain-of functions were performed to determine the roles of miR-646, TET1, IRX1, and HIST2H2BE in cell proliferation, migration, invasion, and apoptosis. The tumor growth, volume, weight, and apoptosis status were measured.
RESULTS: miR-646 was upregulated while TET1 was downregulated in IDC tissues. miR-646 targeted TET1. Downregulated TET1 impairs demethylation of IRX1 promoter region resulting in reduced expression of IRX1, which subsequently leads to upregulation of HIST2H2BE in IDC. Consequently, elevated HIST2H2BE promotes progression of IDC.
CONCLUSION: Our study has demonstrated that miR-646 facilitates the tumorigenesis of IDC via regulating TET1/IRX1/HIST2H2BE axis.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Carcinoma, Ductal
Cell Line, Tumor
DNA Methylation
Demethylation
Gene Expression Regulation, Neoplastic
Homeodomain Proteins/genetics/metabolism
Humans
*MicroRNAs/genetics/metabolism
Mixed Function Oxygenases/genetics/metabolism
Promoter Regions, Genetic
Proto-Oncogene Proteins/genetics/metabolism
Transcription Factors/genetics/metabolism
RevDate: 2026-01-27
CmpDate: 2021-05-03
Risk and prognostic factors of breast cancer with liver metastases.
BMC cancer, 21(1):238.
BACKGROUND: Liver metastasis is a significant adverse predictor of overall survival (OS) among breast cancer patients. The purpose of this study was to determine the risk and prognostic factors of breast cancer with liver metastases (BCLM).
METHODS: Data on 311,573 breast cancer patients from the Surveillance, Epidemiology, and End Results (SEER) database and 1728 BCLM patients from Fudan University Shanghai Cancer Center (FUSCC) were included. Logistic regression was used to identify risk factors for liver metastasis. Cox proportional hazards regression model was adopted to determine independent prognostic factors in BCLM patients.
RESULTS: Young age, invasive ductal carcinoma, higher pathological grade, and subtype of triple-negative and human epidermal growth factor receptor 2 positive (HER2+) were risk factors for developing liver metastasis. The median OS after liver metastasis was 20.0 months in the SEER database and 27.3 months in the FUSCC dataset. Molecular subtypes also played a critical role in the survival of BCLM patients. We observed that hormone receptor-positive (HR+)/HER2+ patients had the longest median OS (38.0 for SEER vs. 34.0 months for FUSCC), whereas triple-negative breast cancer had the shortest OS (9.0 vs. 15.6 months) in both SEER and FUSCC. According to the results from the FUSCC, the subtype of HR+/HER2+ (hazard ratio (HR) = 2.62; 95% confidence interval (CI) = 1.88-3.66; P < 0.001) and HR-/HER2+ (HR = 3.43; 95% CI = 2.28-5.15; P < 0.001) were associated with a significantly increased death risk in comparison with HR+/HER2- patients if these patients did not receive HER2-targeted therapy. For those who underwent HER2-targeted therapy, however, HR+/HER2+ subtype reduced death risk compared with HR+/HER2- subtype (HR = 0.74; 95% CI = 0.58-0.95; P < 0.001).
CONCLUSIONS: Breast cancer patients at a high risk for developing liver metastasis deserve more attention during the follow-up. BCLM patients with HR+/HER2+ subtype displayed the longest median survival than HR+/HER2- and triple-negative patients due to the introduction of HER2-targeted therapy and therefore it should be recommended for HER2+ BCLM patients.
Additional Links: PMID-33676449
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33676449,
year = {2021},
author = {Ji, L and Cheng, L and Zhu, X and Gao, Y and Fan, L and Wang, Z},
title = {Risk and prognostic factors of breast cancer with liver metastases.},
journal = {BMC cancer},
volume = {21},
number = {1},
pages = {238},
pmid = {33676449},
issn = {1471-2407},
mesh = {Adolescent ; Adult ; Aged ; Aged, 80 and over ; Breast/pathology ; Breast Neoplasms/mortality/*pathology/therapy ; Carcinoma, Ductal, Breast/*epidemiology/secondary/therapy ; Chemoradiotherapy, Adjuvant/methods ; Datasets as Topic ; Female ; Follow-Up Studies ; Humans ; Incidence ; Kaplan-Meier Estimate ; Liver/diagnostic imaging/pathology ; Liver Neoplasms/*epidemiology/secondary/therapy ; Mastectomy ; Middle Aged ; Neoadjuvant Therapy/methods ; Prognosis ; Erb-b2 Receptor Tyrosine Kinases/analysis/antagonists & inhibitors/metabolism ; Receptors, Estrogen/analysis/metabolism ; Receptors, Progesterone/analysis/metabolism ; Retrospective Studies ; Risk Factors ; Treatment Outcome ; Triple Negative Breast Neoplasms/mortality/*pathology/therapy ; Young Adult ; },
abstract = {BACKGROUND: Liver metastasis is a significant adverse predictor of overall survival (OS) among breast cancer patients. The purpose of this study was to determine the risk and prognostic factors of breast cancer with liver metastases (BCLM).
METHODS: Data on 311,573 breast cancer patients from the Surveillance, Epidemiology, and End Results (SEER) database and 1728 BCLM patients from Fudan University Shanghai Cancer Center (FUSCC) were included. Logistic regression was used to identify risk factors for liver metastasis. Cox proportional hazards regression model was adopted to determine independent prognostic factors in BCLM patients.
RESULTS: Young age, invasive ductal carcinoma, higher pathological grade, and subtype of triple-negative and human epidermal growth factor receptor 2 positive (HER2+) were risk factors for developing liver metastasis. The median OS after liver metastasis was 20.0 months in the SEER database and 27.3 months in the FUSCC dataset. Molecular subtypes also played a critical role in the survival of BCLM patients. We observed that hormone receptor-positive (HR+)/HER2+ patients had the longest median OS (38.0 for SEER vs. 34.0 months for FUSCC), whereas triple-negative breast cancer had the shortest OS (9.0 vs. 15.6 months) in both SEER and FUSCC. According to the results from the FUSCC, the subtype of HR+/HER2+ (hazard ratio (HR) = 2.62; 95% confidence interval (CI) = 1.88-3.66; P < 0.001) and HR-/HER2+ (HR = 3.43; 95% CI = 2.28-5.15; P < 0.001) were associated with a significantly increased death risk in comparison with HR+/HER2- patients if these patients did not receive HER2-targeted therapy. For those who underwent HER2-targeted therapy, however, HR+/HER2+ subtype reduced death risk compared with HR+/HER2- subtype (HR = 0.74; 95% CI = 0.58-0.95; P < 0.001).
CONCLUSIONS: Breast cancer patients at a high risk for developing liver metastasis deserve more attention during the follow-up. BCLM patients with HR+/HER2+ subtype displayed the longest median survival than HR+/HER2- and triple-negative patients due to the introduction of HER2-targeted therapy and therefore it should be recommended for HER2+ BCLM patients.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adolescent
Adult
Aged
Aged, 80 and over
Breast/pathology
Breast Neoplasms/mortality/*pathology/therapy
Carcinoma, Ductal, Breast/*epidemiology/secondary/therapy
Chemoradiotherapy, Adjuvant/methods
Datasets as Topic
Female
Follow-Up Studies
Humans
Incidence
Kaplan-Meier Estimate
Liver/diagnostic imaging/pathology
Liver Neoplasms/*epidemiology/secondary/therapy
Mastectomy
Middle Aged
Neoadjuvant Therapy/methods
Prognosis
Erb-b2 Receptor Tyrosine Kinases/analysis/antagonists & inhibitors/metabolism
Receptors, Estrogen/analysis/metabolism
Receptors, Progesterone/analysis/metabolism
Retrospective Studies
Risk Factors
Treatment Outcome
Triple Negative Breast Neoplasms/mortality/*pathology/therapy
Young Adult
RevDate: 2021-12-17
CmpDate: 2021-12-17
Metastatic Orbital Tumor From Breast Ductal Carcinoma With Neuroendocrine Differentiation Initially Presenting as Ocular Symptoms: A Case Report and Literature Review.
Frontiers in endocrinology, 12:625663.
BACKGROUND: Orbital metastases from cancers of various organs can arise via the hematogenous route, and many originate from breast, prostate, and lung cancers. Such metastatic orbital tumors may be diagnosed before the primary tumor. We have encountered a case of breast ductal carcinoma with neuroendocrine differentiation that metastasized to the orbit and responded to chemotherapy, with improvement in visual function.
CASE PRESENTATION: A woman in her fifties visited our ophthalmology department with a chief complaint of foreign body sensation and exophthalmos in her right eye. An elastic soft mass was palpated from the lateral orbit to the temporal region. A systemic examination revealed breast cancer and a metastatic orbital tumor. Excisional biopsy of the breast revealed a diagnosis of invasive ductal carcinoma with neuroendocrine differentiation, and immunohistochemical examination was negative for cytokeratin 7, making the case unusual. Chemotherapy was remarkably effective, and the tumor size decreased, resulting in improvement of visual function. Her general condition and quality of life are still good at present. We searched the PubMed English language literature focusing on metastatic orbital tumors from breast cancer in which ocular symptoms had been the initial presenting sign. No previous reports have documented neuroendocrine differentiation or cytokeratin 7 expression in isolated orbital metastases from breast cancer. Although it is not possible to be certain from this case alone, we speculated that some such cases might involve cytokeratin 7-negative invasive breast cancer with neuroendocrine differentiation.
CONCLUSION: We have described our experience of a very rare case of cytokeratin 7 negative breast ductal carcinoma with neuroendocrine differentiation that metastasized to the orbit and formed a solitary giant tumor initially manifesting as ocular symptoms.
Additional Links: PMID-33692758
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33692758,
year = {2021},
author = {Togashi, K and Nishitsuka, K and Hayashi, S and Namba, H and Goto, S and Takeda, Y and Suzuki, S and Kato, T and Yamada, Y and Konno, E and Yoshioka, T and Yamakawa, M and Sonoda, Y and Suzuki, T and Yamashita, H},
title = {Metastatic Orbital Tumor From Breast Ductal Carcinoma With Neuroendocrine Differentiation Initially Presenting as Ocular Symptoms: A Case Report and Literature Review.},
journal = {Frontiers in endocrinology},
volume = {12},
number = {},
pages = {625663},
pmid = {33692758},
issn = {1664-2392},
mesh = {Breast Neoplasms/complications/diagnostic imaging/*pathology ; Carcinoma, Ductal, Breast/complications/diagnostic imaging/*secondary ; Exophthalmos/diagnostic imaging/*etiology ; Female ; Humans ; Magnetic Resonance Imaging ; Middle Aged ; Orbital Neoplasms/complications/diagnostic imaging/*secondary ; },
abstract = {BACKGROUND: Orbital metastases from cancers of various organs can arise via the hematogenous route, and many originate from breast, prostate, and lung cancers. Such metastatic orbital tumors may be diagnosed before the primary tumor. We have encountered a case of breast ductal carcinoma with neuroendocrine differentiation that metastasized to the orbit and responded to chemotherapy, with improvement in visual function.
CASE PRESENTATION: A woman in her fifties visited our ophthalmology department with a chief complaint of foreign body sensation and exophthalmos in her right eye. An elastic soft mass was palpated from the lateral orbit to the temporal region. A systemic examination revealed breast cancer and a metastatic orbital tumor. Excisional biopsy of the breast revealed a diagnosis of invasive ductal carcinoma with neuroendocrine differentiation, and immunohistochemical examination was negative for cytokeratin 7, making the case unusual. Chemotherapy was remarkably effective, and the tumor size decreased, resulting in improvement of visual function. Her general condition and quality of life are still good at present. We searched the PubMed English language literature focusing on metastatic orbital tumors from breast cancer in which ocular symptoms had been the initial presenting sign. No previous reports have documented neuroendocrine differentiation or cytokeratin 7 expression in isolated orbital metastases from breast cancer. Although it is not possible to be certain from this case alone, we speculated that some such cases might involve cytokeratin 7-negative invasive breast cancer with neuroendocrine differentiation.
CONCLUSION: We have described our experience of a very rare case of cytokeratin 7 negative breast ductal carcinoma with neuroendocrine differentiation that metastasized to the orbit and formed a solitary giant tumor initially manifesting as ocular symptoms.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Breast Neoplasms/complications/diagnostic imaging/*pathology
Carcinoma, Ductal, Breast/complications/diagnostic imaging/*secondary
Exophthalmos/diagnostic imaging/*etiology
Female
Humans
Magnetic Resonance Imaging
Middle Aged
Orbital Neoplasms/complications/diagnostic imaging/*secondary
RevDate: 2021-09-24
CmpDate: 2021-09-24
Genomic and Clinical Correlates of Adrenocortical Carcinoma in an Adult Patient with Li-Fraumeni Syndrome: A Case Report.
Current oncology (Toronto, Ont.), 28(1):226-232.
Li-Fraumeni Syndrome (LFS) is defined by germline mutations of the p53 tumour suppressor gene. Adrenocortical carcinoma (ACC) is a rare aggressive malignancy that is commonly associated with LFS. Most LFS-linked ACC cases occur in children, and limited research has been dedicated to the clinical outcomes and genomics of adult cases with LFS-linked ACC. We report on a 34-year-old female who was diagnosed with three separate malignancies: stage III invasive ductal carcinoma of the right breast, metastatic ACC from the right adrenal gland, and grade 2 pleomorphic sarcoma of the left hand. Her invasive breast ductal carcinoma was treated with neoadjuvant chemotherapy, and she received a bilateral mastectomy after her LFS was confirmed with genetic blood testing. Adrenal ACC was initially treated with a right nephrectomy and adrenalectomy, followed by adjuvant mitotane and two lines of chemotherapy after disease recurrence. Her hand sarcoma was treated by second ray amputation. Further, we conducted deep next-generation sequencing of each of her unique tumour tissue samples using FoundationONE CDx. A whole-genome shot capture followed by in vitro sequencing performed by the Illumina[®] HiSeq platform revealed a germline P191fs*18 TP53 mutation across all three tissue samples. This case provides insight into the genomics and clinical characteristics of LFS-linked adult-onset ACC and demonstrated that p53 mutations were preserved throughout each malignancy, without apparent treatment pressures on genomic profiling. This case reinforces the critical importance of adopting best practices for LFS, which include the implementation of highly vigilant screening and management of care in a multidisciplinary setting.
Additional Links: PMID-33704190
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33704190,
year = {2020},
author = {Bondy, S and Tajzler, C and Hotte, SJ and Kapoor, A and Zbuk, K and Lalani, AA},
title = {Genomic and Clinical Correlates of Adrenocortical Carcinoma in an Adult Patient with Li-Fraumeni Syndrome: A Case Report.},
journal = {Current oncology (Toronto, Ont.)},
volume = {28},
number = {1},
pages = {226-232},
pmid = {33704190},
issn = {1718-7729},
mesh = {*Adrenal Cortex Neoplasms/genetics ; *Adrenocortical Carcinoma/diagnosis/genetics ; Adult ; *Breast Neoplasms ; Female ; Genomics ; Humans ; *Li-Fraumeni Syndrome/genetics ; Mastectomy ; Neoplasm Recurrence, Local ; },
abstract = {Li-Fraumeni Syndrome (LFS) is defined by germline mutations of the p53 tumour suppressor gene. Adrenocortical carcinoma (ACC) is a rare aggressive malignancy that is commonly associated with LFS. Most LFS-linked ACC cases occur in children, and limited research has been dedicated to the clinical outcomes and genomics of adult cases with LFS-linked ACC. We report on a 34-year-old female who was diagnosed with three separate malignancies: stage III invasive ductal carcinoma of the right breast, metastatic ACC from the right adrenal gland, and grade 2 pleomorphic sarcoma of the left hand. Her invasive breast ductal carcinoma was treated with neoadjuvant chemotherapy, and she received a bilateral mastectomy after her LFS was confirmed with genetic blood testing. Adrenal ACC was initially treated with a right nephrectomy and adrenalectomy, followed by adjuvant mitotane and two lines of chemotherapy after disease recurrence. Her hand sarcoma was treated by second ray amputation. Further, we conducted deep next-generation sequencing of each of her unique tumour tissue samples using FoundationONE CDx. A whole-genome shot capture followed by in vitro sequencing performed by the Illumina[®] HiSeq platform revealed a germline P191fs*18 TP53 mutation across all three tissue samples. This case provides insight into the genomics and clinical characteristics of LFS-linked adult-onset ACC and demonstrated that p53 mutations were preserved throughout each malignancy, without apparent treatment pressures on genomic profiling. This case reinforces the critical importance of adopting best practices for LFS, which include the implementation of highly vigilant screening and management of care in a multidisciplinary setting.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Adrenal Cortex Neoplasms/genetics
*Adrenocortical Carcinoma/diagnosis/genetics
Adult
*Breast Neoplasms
Female
Genomics
Humans
*Li-Fraumeni Syndrome/genetics
Mastectomy
Neoplasm Recurrence, Local
RevDate: 2026-01-27
CmpDate: 2021-06-17
Neoadjuvant Chemotherapy or Endocrine Therapy for Invasive Ductal Carcinoma of the Breast With High Hormone Receptor Positivity and Human Epidermal Growth Factor Receptor 2 Negativity.
JAMA network open, 4(3):e211785.
IMPORTANCE: Although neoadjuvant endocrine therapy (NET) is an alternative to chemotherapy for strongly hormone receptor (HR)-positive and human epidermal growth factor receptor 2 (ERBB2)-negative breast cancer, evidence is currently lacking regarding the probable survival outcomes of NET in comparison with those of neoadjuvant chemotherapy (NACT) for this cancer.
OBJECTIVE: To evaluate all-cause mortality among patients with strongly HR-positive and ERBB2-negative breast cancer treated with NET vs NACT.
This cohort study included patients with a diagnosis of invasive ductal carcinoma (IDC) with strong HR positivity and ERBB2 negativity, treated between January 1, 2009, and December 31, 2016, with follow-up from the index date (ie, date of IDC diagnosis) to December 31, 2018. The data came from the Taiwan Cancer Registry Database. Data were analyzed from January to November 2020.
EXPOSURES: NET vs NACT for IDC with strong HR positivity and ERBB2 negativity.
MAIN OUTCOMES AND MEASURES: The primary end point was all-cause mortality. Propensity score matching was performed, and Cox proportional hazard models were used to analyze all-cause mortality among patients undergoing different neoadjuvant treatments.
RESULTS: A total of 640 patients (297 [46.4%] aged 20-49 years) undergoing NET (145 patients [22.7%]) or NACT (495 patients [77.3%]) were eligible for further analysis. In the multivariate Cox regression analyses, the adjusted hazard ratio (aHR) for all-cause mortality among the NET cohort compared with the NACT cohort was 2.67 (95% CI, 1.95-3.51; P < .001). The aHRs for age were 1.13 (95% CI, 1.03-2.24), 1.25 (95% CI, 1.13-2.45), and 1.37 (95% CI, 1.17-3.49) for all-cause mortality among patients aged 50 to 59, 60 to 69, and 70 years or older, respectively, compared with those aged 20 to 49 years (P = .002); the aHR for all-cause mortality among premenopausal women was 1.35 (95% CI, 1.13-1.56) compared with postmenopausal women (P < .001); and that of patients with a Charlson Comorbidity Index score of 2 or greater was 1.77 (1.37-2.26) compared with those with a score of 0 (P < .001). The aHRs of all-cause mortality for clinical tumor stage 2, 3, and 4 compared with 1 were 1.84 (95% CI, 1.07-3.40), 1.97 (95% CI, 1.03-3.77), and 2.49 (95% CI, 1.29-4.81), respectively (P = .009). The aHRs for all-cause mortality by clinical nodal (cN) stages were 1.49 (95% CI, 1.13-1.99) and 1.84 (95% CI, 1.31-2.61) for cN stage 1 and cN stages 2 or 3, respectively, compared with cN stage 0 (P = .005); those for differentiation were 1.77 (95% CI, 1.24-2.54) and 2.31 (95% CI, 1.61-3.34) for differentiation grade 2 and differentiation grade 3, respectively, compared with differentiation grade 1 (P < .001).
CONCLUSIONS AND RELEVANCE: The findings of this study suggest that for patients with strongly HR-positive and ERBB2-negative IDC, NACT may be considered the first choice for neoadjuvant treatment.
Additional Links: PMID-33710293
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33710293,
year = {2021},
author = {Zhang, J and Lu, CY and Chen, HM and Wu, SY},
title = {Neoadjuvant Chemotherapy or Endocrine Therapy for Invasive Ductal Carcinoma of the Breast With High Hormone Receptor Positivity and Human Epidermal Growth Factor Receptor 2 Negativity.},
journal = {JAMA network open},
volume = {4},
number = {3},
pages = {e211785},
pmid = {33710293},
issn = {2574-3805},
mesh = {Adult ; Aged ; Breast Neoplasms/chemistry/*drug therapy/*mortality/pathology ; Carcinoma, Ductal/chemistry/*drug therapy/*mortality/pathology ; Cause of Death ; Chemotherapy, Adjuvant ; Female ; Humans ; Middle Aged ; Neoadjuvant Therapy ; Neoplasm Invasiveness ; Erb-b2 Receptor Tyrosine Kinases/analysis ; Young Adult ; },
abstract = {IMPORTANCE: Although neoadjuvant endocrine therapy (NET) is an alternative to chemotherapy for strongly hormone receptor (HR)-positive and human epidermal growth factor receptor 2 (ERBB2)-negative breast cancer, evidence is currently lacking regarding the probable survival outcomes of NET in comparison with those of neoadjuvant chemotherapy (NACT) for this cancer.
OBJECTIVE: To evaluate all-cause mortality among patients with strongly HR-positive and ERBB2-negative breast cancer treated with NET vs NACT.
This cohort study included patients with a diagnosis of invasive ductal carcinoma (IDC) with strong HR positivity and ERBB2 negativity, treated between January 1, 2009, and December 31, 2016, with follow-up from the index date (ie, date of IDC diagnosis) to December 31, 2018. The data came from the Taiwan Cancer Registry Database. Data were analyzed from January to November 2020.
EXPOSURES: NET vs NACT for IDC with strong HR positivity and ERBB2 negativity.
MAIN OUTCOMES AND MEASURES: The primary end point was all-cause mortality. Propensity score matching was performed, and Cox proportional hazard models were used to analyze all-cause mortality among patients undergoing different neoadjuvant treatments.
RESULTS: A total of 640 patients (297 [46.4%] aged 20-49 years) undergoing NET (145 patients [22.7%]) or NACT (495 patients [77.3%]) were eligible for further analysis. In the multivariate Cox regression analyses, the adjusted hazard ratio (aHR) for all-cause mortality among the NET cohort compared with the NACT cohort was 2.67 (95% CI, 1.95-3.51; P < .001). The aHRs for age were 1.13 (95% CI, 1.03-2.24), 1.25 (95% CI, 1.13-2.45), and 1.37 (95% CI, 1.17-3.49) for all-cause mortality among patients aged 50 to 59, 60 to 69, and 70 years or older, respectively, compared with those aged 20 to 49 years (P = .002); the aHR for all-cause mortality among premenopausal women was 1.35 (95% CI, 1.13-1.56) compared with postmenopausal women (P < .001); and that of patients with a Charlson Comorbidity Index score of 2 or greater was 1.77 (1.37-2.26) compared with those with a score of 0 (P < .001). The aHRs of all-cause mortality for clinical tumor stage 2, 3, and 4 compared with 1 were 1.84 (95% CI, 1.07-3.40), 1.97 (95% CI, 1.03-3.77), and 2.49 (95% CI, 1.29-4.81), respectively (P = .009). The aHRs for all-cause mortality by clinical nodal (cN) stages were 1.49 (95% CI, 1.13-1.99) and 1.84 (95% CI, 1.31-2.61) for cN stage 1 and cN stages 2 or 3, respectively, compared with cN stage 0 (P = .005); those for differentiation were 1.77 (95% CI, 1.24-2.54) and 2.31 (95% CI, 1.61-3.34) for differentiation grade 2 and differentiation grade 3, respectively, compared with differentiation grade 1 (P < .001).
CONCLUSIONS AND RELEVANCE: The findings of this study suggest that for patients with strongly HR-positive and ERBB2-negative IDC, NACT may be considered the first choice for neoadjuvant treatment.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Breast Neoplasms/chemistry/*drug therapy/*mortality/pathology
Carcinoma, Ductal/chemistry/*drug therapy/*mortality/pathology
Cause of Death
Chemotherapy, Adjuvant
Female
Humans
Middle Aged
Neoadjuvant Therapy
Neoplasm Invasiveness
Erb-b2 Receptor Tyrosine Kinases/analysis
Young Adult
RevDate: 2026-01-27
CmpDate: 2021-03-22
Brain metastasis with subtype conversion in a patient with male breast cancer: A case report.
Medicine, 100(11):e24373.
RATIONALE: Brain metastasis of male breast cancer is extremely rare, and the pathological changes between the primary tumor and the metastatic brain tumor have not been reported. Herein, we report for the first time a case of male breast cancer with metastasis to the parietal lobe with subtype conversion after metastasis.
PATIENT CONCERNS: we describe a 45-year-old male patient admitted for an incidentally found brain tumor after a motorcycle accident. The patient had been treated for breast cancer 5 years previously. The primary tumor was an invasive ductal carcinoma classified as pT1N1M0 with hormone receptor positivity (estrogen receptor ++, progesterone receptor +++, human epidermal growth factor receptor-type2 (HER2) +) and was treated with surgery, adjuvant chemotherapy, radiation therapy and endocrine therapy (tamoxifen).
DIAGNOSES: Magnetic resonance imaging revealed a well enhanced focal solid tumor in the right parietal lobe (5.0 × 4.2 cm in size), Immunohistochemical staining revealed cerebral metastases of breast cancer with HER2 subtype conversion (estrogen receptor +++, progesterone receptor +++, HER2 -).
INTERVENTIONS: The patient was successfully treated with surgery and whole brain irradiation (3 Gy × 10 fractions).
OUTCOMES: There was no additional complication after the surgery and the patient transferred to oncology department for chemotherapy. 2 years later, he had gamma knife radiosurgery due to the recurred brain lesion and after that he discontinued the treatment and opted for hospice care.
LESSONS: Male breast cancer with metastasis to the brain is an extremely rare condition. Although a few similar cases have been reported, subtype conversion in similar cases has not been reported. Therefore, we report this case of a male patient with brain metastasis of invasive ductal carcinoma with HER2 status conversion after metastasis.
Additional Links: PMID-33725931
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33725931,
year = {2021},
author = {Oh, BH and Woo, CG and Lee, YJ and Park, YS},
title = {Brain metastasis with subtype conversion in a patient with male breast cancer: A case report.},
journal = {Medicine},
volume = {100},
number = {11},
pages = {e24373},
pmid = {33725931},
issn = {1536-5964},
support = {NRF-2019R1A2C1085809//Chungbuk National University Korea National University Development Project (2020)/ ; },
mesh = {Brain Neoplasms/metabolism/*secondary ; Breast Neoplasms, Male/metabolism/*pathology ; Carcinoma, Ductal, Breast/metabolism/*secondary ; Humans ; Male ; Middle Aged ; Erb-b2 Receptor Tyrosine Kinases/metabolism ; Receptors, Estrogen/metabolism ; Receptors, Progesterone/metabolism ; },
abstract = {RATIONALE: Brain metastasis of male breast cancer is extremely rare, and the pathological changes between the primary tumor and the metastatic brain tumor have not been reported. Herein, we report for the first time a case of male breast cancer with metastasis to the parietal lobe with subtype conversion after metastasis.
PATIENT CONCERNS: we describe a 45-year-old male patient admitted for an incidentally found brain tumor after a motorcycle accident. The patient had been treated for breast cancer 5 years previously. The primary tumor was an invasive ductal carcinoma classified as pT1N1M0 with hormone receptor positivity (estrogen receptor ++, progesterone receptor +++, human epidermal growth factor receptor-type2 (HER2) +) and was treated with surgery, adjuvant chemotherapy, radiation therapy and endocrine therapy (tamoxifen).
DIAGNOSES: Magnetic resonance imaging revealed a well enhanced focal solid tumor in the right parietal lobe (5.0 × 4.2 cm in size), Immunohistochemical staining revealed cerebral metastases of breast cancer with HER2 subtype conversion (estrogen receptor +++, progesterone receptor +++, HER2 -).
INTERVENTIONS: The patient was successfully treated with surgery and whole brain irradiation (3 Gy × 10 fractions).
OUTCOMES: There was no additional complication after the surgery and the patient transferred to oncology department for chemotherapy. 2 years later, he had gamma knife radiosurgery due to the recurred brain lesion and after that he discontinued the treatment and opted for hospice care.
LESSONS: Male breast cancer with metastasis to the brain is an extremely rare condition. Although a few similar cases have been reported, subtype conversion in similar cases has not been reported. Therefore, we report this case of a male patient with brain metastasis of invasive ductal carcinoma with HER2 status conversion after metastasis.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Brain Neoplasms/metabolism/*secondary
Breast Neoplasms, Male/metabolism/*pathology
Carcinoma, Ductal, Breast/metabolism/*secondary
Humans
Male
Middle Aged
Erb-b2 Receptor Tyrosine Kinases/metabolism
Receptors, Estrogen/metabolism
Receptors, Progesterone/metabolism
RevDate: 2021-10-04
CmpDate: 2021-10-04
The Epidemiology of Substance Use Disorders among the Adult Jewish Population in Israel.
European addiction research, 27(5):362-370.
INTRODUCTION: Substance use disorders (SUDs) are a leading cause of morbidity and mortality worldwide, having a profound and global impact on health, well-being, safety, and productivity. Although traditionally the prevalence of SUDs in Israel has been estimated to be lower than those in high-income countries, estimates and characteristics of individuals with SUDs in the past decade are lacking. In this work, we explored the prevalence of SUDs among the adult Jewish population in Israel, per different classes of substances across sex, age group, and other sociodemographic factors.
METHODS: Data from an online representative sample of 4,025 respondents were collected, including the alcohol, smoking, and substance involvement screening test (ASSIST) metric and sociodemographic data.
RESULTS: We found that the most common SUDs were alcohol (10.5% [9.5-11.4]), cannabis (9.0% [8.2-9.9]), and sedative (3.6% [3.0-4.2]) use disorders. Alcohol-cannabis (3.2% [2.7-3.7]) and alcohol-sedative (1.04% [0.7-1.35]) were the most prevalent co-occurring SUDs. Among those with cannabis use disorder, the prevalence of alcohol use disorder was found to be 35.3% [30.4-40.2]. The estimated risk for alcohol use disorder was found to be inversely proportional to age, cannabis use disorder increased, peaked, and decreased with age, and that of sedative use disorder increased with age, particularly among women. While older individuals (in the 51-60 years of age group) were at lower risk (OR = 0.5 [0.3, 0.8]) compared to those <20 years of age for alcohol use disorder, they were at increased risk for sedative use disorder (OR = 3.1 [1.2, 9.7]).
CONCLUSIONS: These findings represent substantially higher rates of SUDs in Israel than those previously reported and should affect resources allocated to addiction prevention and treatment. Further research on the role of gender, age, culture, and ethnicity in the propensity to develop SUDs is necessary for the development of more focused preventive and intervention measures. Focusing on non-Jewish populations in Israel and broadening the scope to include behavioral addictions should be addressed in future studies.
Additional Links: PMID-33730716
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33730716,
year = {2021},
author = {Bar-Or, RL and Kor, A and Jaljuli, I and Lev-Ran, S},
title = {The Epidemiology of Substance Use Disorders among the Adult Jewish Population in Israel.},
journal = {European addiction research},
volume = {27},
number = {5},
pages = {362-370},
doi = {10.1159/000513776},
pmid = {33730716},
issn = {1421-9891},
mesh = {Adult ; *Alcoholism ; Humans ; Israel/epidemiology ; Jews/statistics & numerical data ; Prevalence ; *Substance-Related Disorders/epidemiology ; Young Adult ; },
abstract = {INTRODUCTION: Substance use disorders (SUDs) are a leading cause of morbidity and mortality worldwide, having a profound and global impact on health, well-being, safety, and productivity. Although traditionally the prevalence of SUDs in Israel has been estimated to be lower than those in high-income countries, estimates and characteristics of individuals with SUDs in the past decade are lacking. In this work, we explored the prevalence of SUDs among the adult Jewish population in Israel, per different classes of substances across sex, age group, and other sociodemographic factors.
METHODS: Data from an online representative sample of 4,025 respondents were collected, including the alcohol, smoking, and substance involvement screening test (ASSIST) metric and sociodemographic data.
RESULTS: We found that the most common SUDs were alcohol (10.5% [9.5-11.4]), cannabis (9.0% [8.2-9.9]), and sedative (3.6% [3.0-4.2]) use disorders. Alcohol-cannabis (3.2% [2.7-3.7]) and alcohol-sedative (1.04% [0.7-1.35]) were the most prevalent co-occurring SUDs. Among those with cannabis use disorder, the prevalence of alcohol use disorder was found to be 35.3% [30.4-40.2]. The estimated risk for alcohol use disorder was found to be inversely proportional to age, cannabis use disorder increased, peaked, and decreased with age, and that of sedative use disorder increased with age, particularly among women. While older individuals (in the 51-60 years of age group) were at lower risk (OR = 0.5 [0.3, 0.8]) compared to those <20 years of age for alcohol use disorder, they were at increased risk for sedative use disorder (OR = 3.1 [1.2, 9.7]).
CONCLUSIONS: These findings represent substantially higher rates of SUDs in Israel than those previously reported and should affect resources allocated to addiction prevention and treatment. Further research on the role of gender, age, culture, and ethnicity in the propensity to develop SUDs is necessary for the development of more focused preventive and intervention measures. Focusing on non-Jewish populations in Israel and broadening the scope to include behavioral addictions should be addressed in future studies.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
*Alcoholism
Humans
Israel/epidemiology
Jews/statistics & numerical data
Prevalence
*Substance-Related Disorders/epidemiology
Young Adult
RevDate: 2021-05-21
CmpDate: 2021-05-21
The association between type of trauma, level of exposure and addiction.
Addictive behaviors, 118:106889.
Exposure to trauma is considered a risk factor for the development of addictive disorders. Currently, there is a knowledge gap concerning specific links between types and levels of exposure to traumatic events and addiction.In this study we explored the associations between interpersonal trauma and risk of addictive behaviors, stratified by type of trauma (physical, weapon, sexual assault, and combat) and level of exposure (direct/indirect), focusing on a wide range of substances and behaviors. Data from an online representative sample of 4025 respondents were collected, including the Life Events Checklist (LEC-5), substance use disorders and behavioral addictions metrics, and sociodemographic data. Substantial differences were found between specific types of trauma and risk of addiction. Among those exposed to sexual assault, the risk of alcohol use disorder was found to 15.4%, 95%CI[14.4-16.4%], compared to 12.1%,95%CI[11.3-12.8] among those exposed to combat-related trauma. Both direct and indirect exposure to trauma were found to be significantly related with risk of addiction. While direct exposure was most highly associated with addictions across several types of trauma, in the case of combat-related trauma, indirect exposure was more highly associated with alcohol and pornography addiction (14.5%,95%CI[13.2-15.8%] and 10.0%, 95%CI[6.3-15.0%], respectively) compared to direct exposure (10.7%,95%CI[9.9-11.6%] and 7.4%, 95%CI[4.7-11.6%], respectively). Our findings emphasize the strong association between all types of trauma and the risk of several specific substance and behavioral addictions. Specifically, the role of indirect exposure to trauma is highlighted.
Additional Links: PMID-33735776
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33735776,
year = {2021},
author = {Levin, Y and Lev Bar-Or, R and Forer, R and Vaserman, M and Kor, A and Lev-Ran, S},
title = {The association between type of trauma, level of exposure and addiction.},
journal = {Addictive behaviors},
volume = {118},
number = {},
pages = {106889},
doi = {10.1016/j.addbeh.2021.106889},
pmid = {33735776},
issn = {1873-6327},
mesh = {*Alcoholism ; *Behavior, Addictive/epidemiology ; Checklist ; Humans ; Risk Factors ; *Substance-Related Disorders/epidemiology ; },
abstract = {Exposure to trauma is considered a risk factor for the development of addictive disorders. Currently, there is a knowledge gap concerning specific links between types and levels of exposure to traumatic events and addiction.In this study we explored the associations between interpersonal trauma and risk of addictive behaviors, stratified by type of trauma (physical, weapon, sexual assault, and combat) and level of exposure (direct/indirect), focusing on a wide range of substances and behaviors. Data from an online representative sample of 4025 respondents were collected, including the Life Events Checklist (LEC-5), substance use disorders and behavioral addictions metrics, and sociodemographic data. Substantial differences were found between specific types of trauma and risk of addiction. Among those exposed to sexual assault, the risk of alcohol use disorder was found to 15.4%, 95%CI[14.4-16.4%], compared to 12.1%,95%CI[11.3-12.8] among those exposed to combat-related trauma. Both direct and indirect exposure to trauma were found to be significantly related with risk of addiction. While direct exposure was most highly associated with addictions across several types of trauma, in the case of combat-related trauma, indirect exposure was more highly associated with alcohol and pornography addiction (14.5%,95%CI[13.2-15.8%] and 10.0%, 95%CI[6.3-15.0%], respectively) compared to direct exposure (10.7%,95%CI[9.9-11.6%] and 7.4%, 95%CI[4.7-11.6%], respectively). Our findings emphasize the strong association between all types of trauma and the risk of several specific substance and behavioral addictions. Specifically, the role of indirect exposure to trauma is highlighted.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Alcoholism
*Behavior, Addictive/epidemiology
Checklist
Humans
Risk Factors
*Substance-Related Disorders/epidemiology
RevDate: 2026-01-27
CmpDate: 2022-01-24
Triple-negative breast lobular carcinoma: a luminal androgen receptor carcinoma with specific ESRRA mutations.
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 34(7):1282-1296.
Primary triple-negative invasive lobular breast carcinomas (TN-ILCs), which do not express hormone receptors and HER2 at diagnosis, are rare and poorly known. In this study, we analyzed the largest TN-ILC series ever reported in the literature, in comparison to phenotypically similar breast tumor subtypes: triple-negative invasive ductal carcinoma (TN-IDC) and hormone receptor-positive invasive lobular carcinoma (HR + ILC). All primary TN-ILCs registered in our database between 2000 and 2018 (n = 38) were compared to tumors from control groups, matched by stage and Elston/Ellis grade, with regard to clinical, pathologic, and immunohistochemical characteristics. A comparative molecular analysis (whole-exome and RNA sequencing using next-generation technology) was also performed. We found that TN-ILC patients were older than those with HR + ILC (P = 0.002) or TN-IDC (P < 0.001). Morphologically, TN-ILCs had aggressive phenotypes, with more pleomorphism (P = 0.003) and higher nuclear grades than HR + ILCs (P = 0.009). Immunohistochemistry showed that TN-ILCs less frequently expressed basal markers (CK5/6, EGFR and SOX10) than TN-IDCs (P < 0.001), while androgen receptor (AR) positivity was more prevalent (P < 0.001). Survival curves analysis did not show differences between TN-ILC and TN-IDC patients, while overall and distant metastasis-free survival were significantly worse compared to those with HR + ILCs (P = 0.047 and P = 0.039, respectively). At a molecular level, we found that TN-ILCs had particular transcriptomic profiles, characterized by increased AR signaling, and associated with frequent alterations in the PI3K network and ERBB2. Interestingly, whole-exome analysis also identified three specific recurrent ESRRA hotspot mutations in these tumors, which have never been described in breast cancer to date and which were absent in the other two tumor subtypes. Our findings highlight that TN-ILC is a unique aggressive breast cancer associated with elderly age, which belong to the luminal androgen receptor subtype as determined by immunohistochemistry and transcriptomic profiling. Moreover, it harbors specific molecular alterations (PI3K, ERBB2 and ESRRA) which may pave the way for new targeted therapeutic strategies.
Additional Links: PMID-33753865
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33753865,
year = {2021},
author = {Bergeron, A and MacGrogan, G and Bertaut, A and Ladoire, S and Arveux, P and Desmoulins, I and Bonnefoi, H and Loustalot, C and Auriol, S and Beltjens, F and Degrolard-Courcet, E and Charon-Barra, C and Richard, C and Boidot, R and Arnould, L},
title = {Triple-negative breast lobular carcinoma: a luminal androgen receptor carcinoma with specific ESRRA mutations.},
journal = {Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc},
volume = {34},
number = {7},
pages = {1282-1296},
pmid = {33753865},
issn = {1530-0285},
mesh = {Adult ; Aged ; Aged, 80 and over ; Carcinoma, Lobular/genetics/metabolism/*pathology ; DNA Mutational Analysis ; Female ; Humans ; Middle Aged ; Mutation ; Phosphatidylinositol 3-Kinases/genetics ; Erb-b2 Receptor Tyrosine Kinases/genetics ; Receptors, Androgen/genetics/*metabolism ; Receptors, Estrogen/*genetics ; Triple Negative Breast Neoplasms/*genetics/metabolism/*pathology ; ERRalpha Estrogen-Related Receptor ; },
abstract = {Primary triple-negative invasive lobular breast carcinomas (TN-ILCs), which do not express hormone receptors and HER2 at diagnosis, are rare and poorly known. In this study, we analyzed the largest TN-ILC series ever reported in the literature, in comparison to phenotypically similar breast tumor subtypes: triple-negative invasive ductal carcinoma (TN-IDC) and hormone receptor-positive invasive lobular carcinoma (HR + ILC). All primary TN-ILCs registered in our database between 2000 and 2018 (n = 38) were compared to tumors from control groups, matched by stage and Elston/Ellis grade, with regard to clinical, pathologic, and immunohistochemical characteristics. A comparative molecular analysis (whole-exome and RNA sequencing using next-generation technology) was also performed. We found that TN-ILC patients were older than those with HR + ILC (P = 0.002) or TN-IDC (P < 0.001). Morphologically, TN-ILCs had aggressive phenotypes, with more pleomorphism (P = 0.003) and higher nuclear grades than HR + ILCs (P = 0.009). Immunohistochemistry showed that TN-ILCs less frequently expressed basal markers (CK5/6, EGFR and SOX10) than TN-IDCs (P < 0.001), while androgen receptor (AR) positivity was more prevalent (P < 0.001). Survival curves analysis did not show differences between TN-ILC and TN-IDC patients, while overall and distant metastasis-free survival were significantly worse compared to those with HR + ILCs (P = 0.047 and P = 0.039, respectively). At a molecular level, we found that TN-ILCs had particular transcriptomic profiles, characterized by increased AR signaling, and associated with frequent alterations in the PI3K network and ERBB2. Interestingly, whole-exome analysis also identified three specific recurrent ESRRA hotspot mutations in these tumors, which have never been described in breast cancer to date and which were absent in the other two tumor subtypes. Our findings highlight that TN-ILC is a unique aggressive breast cancer associated with elderly age, which belong to the luminal androgen receptor subtype as determined by immunohistochemistry and transcriptomic profiling. Moreover, it harbors specific molecular alterations (PI3K, ERBB2 and ESRRA) which may pave the way for new targeted therapeutic strategies.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Aged, 80 and over
Carcinoma, Lobular/genetics/metabolism/*pathology
DNA Mutational Analysis
Female
Humans
Middle Aged
Mutation
Phosphatidylinositol 3-Kinases/genetics
Erb-b2 Receptor Tyrosine Kinases/genetics
Receptors, Androgen/genetics/*metabolism
Receptors, Estrogen/*genetics
Triple Negative Breast Neoplasms/*genetics/metabolism/*pathology
ERRalpha Estrogen-Related Receptor
RevDate: 2026-01-27
CmpDate: 2021-09-01
Betulin ameliorates 7,12-dimethylbenz(a)anthracene-induced rat mammary cancer by modulating MAPK and AhR/Nrf-2 signaling pathway.
Journal of biochemical and molecular toxicology, 35(7):e22779.
The aim of the present study is to explore the preventive efficacy of betulin (BE) in 7,12-dimethylbenz(a)anthracene (DMBA)-administered mammary cancer by modulating Ahr/Nrf2 signaling in experimental models. The mammary cancer was stimulated by the addition of DMBA (25 mg/kg/b.Wt) mixed in 1 ml of vehicle solution (sunflower oil and saline 1:1) through subcutaneous injection. The DMBA-exposed mammary tumor models showed low bodyweight, elevated quantities of lipid peroxidation molecules (TBARS and LOOH), and low enzymatic (GPx, SOD, and CAT), and nonenzymatic (GSH, vitamin C, and vitamin E) antioxidant activities in plasma and mammary tissues. Moreover, histopathological studies confirmed that invasive ductal carcinoma was observed in DMBA-induced mammary tissue of the experimental model. Dietary oral supplementation of BE prevents the loss of bodyweight, overproduces lipid peroxidation, and restores the antioxidant activities in DMBA-exposed experimental animals. The nuclear factor erythroid 2-related factor 2 (Nrf2) is a crucial antioxidant protein that involves preventing numerous cancers. Therefore, Nrf2-associated signaling concern is a significant target for preventing mammary cancer. This study observed an increased expression of MAPKs, Keap1, ARNT, AhR, and CYP1A1, whereas decreased expression of HO-1 and Nrf2 in DMBA-induced cancer-bearing experimental animals. The oral supplementation of BE effectively modulates the expression of MAPKs, AhR/Nrf2-associated protein expressions in DMBA-exposed experimental animals. This current study concluded that BE is a strong antioxidant, which triggers the MAPKs-mediated oxidative stress and inhibits proliferative markers by restoring the activity of Nrf2 signaling.
Additional Links: PMID-33759307
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33759307,
year = {2021},
author = {Zhang, J and Zhou, B and Sun, J and Chen, H and Yang, Z},
title = {Betulin ameliorates 7,12-dimethylbenz(a)anthracene-induced rat mammary cancer by modulating MAPK and AhR/Nrf-2 signaling pathway.},
journal = {Journal of biochemical and molecular toxicology},
volume = {35},
number = {7},
pages = {e22779},
doi = {10.1002/jbt.22779},
pmid = {33759307},
issn = {1099-0461},
mesh = {9,10-Dimethyl-1,2-benzanthracene/*toxicity ; Animals ; Female ; MAP Kinase Signaling System/*drug effects ; Mammary Neoplasms, Animal/chemically induced/drug therapy/*metabolism/pathology ; NF-E2-Related Factor 2/*metabolism ; Neoplasm Proteins/*metabolism ; Rats ; Receptors, Aryl Hydrocarbon/*metabolism ; Triterpenes/*pharmacology ; Betulinic Acid ; },
abstract = {The aim of the present study is to explore the preventive efficacy of betulin (BE) in 7,12-dimethylbenz(a)anthracene (DMBA)-administered mammary cancer by modulating Ahr/Nrf2 signaling in experimental models. The mammary cancer was stimulated by the addition of DMBA (25 mg/kg/b.Wt) mixed in 1 ml of vehicle solution (sunflower oil and saline 1:1) through subcutaneous injection. The DMBA-exposed mammary tumor models showed low bodyweight, elevated quantities of lipid peroxidation molecules (TBARS and LOOH), and low enzymatic (GPx, SOD, and CAT), and nonenzymatic (GSH, vitamin C, and vitamin E) antioxidant activities in plasma and mammary tissues. Moreover, histopathological studies confirmed that invasive ductal carcinoma was observed in DMBA-induced mammary tissue of the experimental model. Dietary oral supplementation of BE prevents the loss of bodyweight, overproduces lipid peroxidation, and restores the antioxidant activities in DMBA-exposed experimental animals. The nuclear factor erythroid 2-related factor 2 (Nrf2) is a crucial antioxidant protein that involves preventing numerous cancers. Therefore, Nrf2-associated signaling concern is a significant target for preventing mammary cancer. This study observed an increased expression of MAPKs, Keap1, ARNT, AhR, and CYP1A1, whereas decreased expression of HO-1 and Nrf2 in DMBA-induced cancer-bearing experimental animals. The oral supplementation of BE effectively modulates the expression of MAPKs, AhR/Nrf2-associated protein expressions in DMBA-exposed experimental animals. This current study concluded that BE is a strong antioxidant, which triggers the MAPKs-mediated oxidative stress and inhibits proliferative markers by restoring the activity of Nrf2 signaling.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
9,10-Dimethyl-1,2-benzanthracene/*toxicity
Animals
Female
MAP Kinase Signaling System/*drug effects
Mammary Neoplasms, Animal/chemically induced/drug therapy/*metabolism/pathology
NF-E2-Related Factor 2/*metabolism
Neoplasm Proteins/*metabolism
Rats
Receptors, Aryl Hydrocarbon/*metabolism
Triterpenes/*pharmacology
Betulinic Acid
RevDate: 2021-03-30
Hydronephrosis Caused by Metastatic Breast Cancer.
Case reports in oncology, 14(1):378-385.
Breast cancer metastasizes mainly to organs such as bone, lung, and liver, whereas metastases to the peritoneum and urinary tract are rare. Metastasis to the peritoneum or urinary tract may result in renal dysfunction, infection, and painful hydronephrosis. In our hospital, 1,409 breast cancer surgeries were performed between January 2004 and December 2015, and 7 cases of hydronephrosis associated with recurrence were observed. The median age of patients was 69 years (57-79 years). The median time from surgery to diagnosis of hydronephrosis was 47 months (20-70 months). Histology was invasive ductal carcinoma (IDC) in 6 cases and invasive lobular carcinoma (ILC) in 1 case. There were 6 bilateral cases and 1 unilateral case of hydronephrosis. The causes were retroperitoneal metastasis in 5 cases and lymph node metastasis in 2 cases. The hydronephrosis was untreated in 2 cases, and treated with a ureteral stent in 2 cases, nephrostomy in 1 case, and nephrostomy due to ureteral stent failure in 2 cases. The median survival from the onset of hydronephrosis was 12 months (3-57 months). Although the probability of hydronephrosis in breast cancer recurrence was not high, care must be taken to avoid renal dysfunction, infection, or pain, which may require treatment.
Additional Links: PMID-33776732
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33776732,
year = {2021},
author = {Sugimoto, H and Oda, G and Yokoyama, M and Hayashi, K and Yoshino, M and Ogawa, A and Hosoya, T and Nakagawa, T and Uetake, H},
title = {Hydronephrosis Caused by Metastatic Breast Cancer.},
journal = {Case reports in oncology},
volume = {14},
number = {1},
pages = {378-385},
pmid = {33776732},
issn = {1662-6575},
abstract = {Breast cancer metastasizes mainly to organs such as bone, lung, and liver, whereas metastases to the peritoneum and urinary tract are rare. Metastasis to the peritoneum or urinary tract may result in renal dysfunction, infection, and painful hydronephrosis. In our hospital, 1,409 breast cancer surgeries were performed between January 2004 and December 2015, and 7 cases of hydronephrosis associated with recurrence were observed. The median age of patients was 69 years (57-79 years). The median time from surgery to diagnosis of hydronephrosis was 47 months (20-70 months). Histology was invasive ductal carcinoma (IDC) in 6 cases and invasive lobular carcinoma (ILC) in 1 case. There were 6 bilateral cases and 1 unilateral case of hydronephrosis. The causes were retroperitoneal metastasis in 5 cases and lymph node metastasis in 2 cases. The hydronephrosis was untreated in 2 cases, and treated with a ureteral stent in 2 cases, nephrostomy in 1 case, and nephrostomy due to ureteral stent failure in 2 cases. The median survival from the onset of hydronephrosis was 12 months (3-57 months). Although the probability of hydronephrosis in breast cancer recurrence was not high, care must be taken to avoid renal dysfunction, infection, or pain, which may require treatment.},
}
RevDate: 2025-05-30
CmpDate: 2021-08-30
Tolerogenic effects of 1,25-dihydroxyvitamin D on dendritic cells involve induction of fatty acid synthesis.
The Journal of steroid biochemistry and molecular biology, 211:105891.
The active form of vitamin D, 1,25-dihydroxyvitamin D (1,25D) is a potent regulator of immune function, promoting anti-inflammatory, tolerogenic T cell responses by modulating antigen presentation by dendritic cells (DC). Transcriptomic analyses indicate that DC responses to 1,25D involve changes in glycolysis, oxidative phosphorylation, electron transport and the TCA cycle. To determine the functional impact of 1,25D-mediated metabolic remodelling, human monocyte-derived DC were differentiated to immature (+vehicle, iDC), mature (+LPS, mDC), and immature tolerogenic DC (+1,25D, itolDC) and characterised for metabolic function. In contrast to mDC which showed no change in respiration, itolDC showed increased basal and ATP-linked respiration relative to iDC. Tracer metabolite analyses using [13]C -labeled glucose showed increased lactate and TCA cycle metabolites. Analysis of lipophilic metabolites of [13]C-glucose revealed significant incorporation of label in palmitate and palmitoleate, indicating that 1,25D promotes metabolic fatty acid synthesis in itolDC. Inhibition of fatty acid synthesis in itolDC altered itolDC morphology and suppressed expression of CD14 and IL-10 by these cells. These data indicate that the ability of 1,25D to induce tolerogenic DC involves metabolic remodelling leading to synthesis of fatty acids.
Additional Links: PMID-33785437
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33785437,
year = {2021},
author = {Garcia, AM and Bishop, EL and Li, D and Jeffery, LE and Garten, A and Thakker, A and Certo, M and Mauro, C and Tennant, DA and Dimeloe, S and Evelo, CT and Coort, SL and Hewison, M},
title = {Tolerogenic effects of 1,25-dihydroxyvitamin D on dendritic cells involve induction of fatty acid synthesis.},
journal = {The Journal of steroid biochemistry and molecular biology},
volume = {211},
number = {},
pages = {105891},
pmid = {33785437},
issn = {1879-1220},
support = {MR/P021220/1/MRC_/Medical Research Council/United Kingdom ; MR/T016736/1/MRC_/Medical Research Council/United Kingdom ; /WT_/Wellcome Trust/United Kingdom ; },
mesh = {*Adipogenesis ; *Cell Differentiation ; Cells, Cultured ; Dendritic Cells/drug effects/immunology/*metabolism ; Fatty Acids/*biosynthesis ; Glycolysis ; Humans ; *Immune Tolerance ; Vitamin D/*analogs & derivatives/pharmacology ; },
abstract = {The active form of vitamin D, 1,25-dihydroxyvitamin D (1,25D) is a potent regulator of immune function, promoting anti-inflammatory, tolerogenic T cell responses by modulating antigen presentation by dendritic cells (DC). Transcriptomic analyses indicate that DC responses to 1,25D involve changes in glycolysis, oxidative phosphorylation, electron transport and the TCA cycle. To determine the functional impact of 1,25D-mediated metabolic remodelling, human monocyte-derived DC were differentiated to immature (+vehicle, iDC), mature (+LPS, mDC), and immature tolerogenic DC (+1,25D, itolDC) and characterised for metabolic function. In contrast to mDC which showed no change in respiration, itolDC showed increased basal and ATP-linked respiration relative to iDC. Tracer metabolite analyses using [13]C -labeled glucose showed increased lactate and TCA cycle metabolites. Analysis of lipophilic metabolites of [13]C-glucose revealed significant incorporation of label in palmitate and palmitoleate, indicating that 1,25D promotes metabolic fatty acid synthesis in itolDC. Inhibition of fatty acid synthesis in itolDC altered itolDC morphology and suppressed expression of CD14 and IL-10 by these cells. These data indicate that the ability of 1,25D to induce tolerogenic DC involves metabolic remodelling leading to synthesis of fatty acids.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Adipogenesis
*Cell Differentiation
Cells, Cultured
Dendritic Cells/drug effects/immunology/*metabolism
Fatty Acids/*biosynthesis
Glycolysis
Humans
*Immune Tolerance
Vitamin D/*analogs & derivatives/pharmacology
RevDate: 2026-01-27
CmpDate: 2021-08-05
Genomic profiling reveals heterogeneous populations of ductal carcinoma in situ of the breast.
Communications biology, 4(1):438.
In a substantial number of patients, ductal carcinoma in situ (DCIS) of the breast will never progress to invasive ductal carcinoma, and these patients are often overtreated under the current clinical criteria. Although various candidate markers are available, relevant markers for delineating risk categories have not yet been established. In this study, we analyzed the clinical characteristics of 431 patients with DCIS and performed whole-exome sequencing analysis in a 21-patient discovery cohort and targeted deep sequencing analysis in a 72-patient validation cohort. We determined that age <45 years, HER2 amplification, and GATA3 mutation are possible indicators of relapse. PIK3CA mutation negativity and PgR negativity were also suggested to be risk factors. Spatial transcriptome analysis further revealed that GATA3 dysfunction upregulates epithelial-to-mesenchymal transition and angiogenesis, followed by PgR downregulation. These results reveal the existence of heterogeneous cell populations in DCIS and provide predictive markers for classifying DCIS and optimizing treatment.
Additional Links: PMID-33795819
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33795819,
year = {2021},
author = {Nagasawa, S and Kuze, Y and Maeda, I and Kojima, Y and Motoyoshi, A and Onishi, T and Iwatani, T and Yokoe, T and Koike, J and Chosokabe, M and Kubota, M and Seino, H and Suzuki, A and Seki, M and Tsuchihara, K and Inoue, E and Tsugawa, K and Ohta, T and Suzuki, Y},
title = {Genomic profiling reveals heterogeneous populations of ductal carcinoma in situ of the breast.},
journal = {Communications biology},
volume = {4},
number = {1},
pages = {438},
pmid = {33795819},
issn = {2399-3642},
mesh = {Adult ; Age Factors ; Aged ; Aged, 80 and over ; Breast Neoplasms/*genetics ; Carcinoma, Intraductal, Noninfiltrating/*genetics ; Female ; GATA3 Transcription Factor/genetics/metabolism ; *Gene Amplification ; Gene Expression Profiling ; Humans ; Middle Aged ; *Mutation ; Erb-b2 Receptor Tyrosine Kinases/genetics/metabolism ; Young Adult ; },
abstract = {In a substantial number of patients, ductal carcinoma in situ (DCIS) of the breast will never progress to invasive ductal carcinoma, and these patients are often overtreated under the current clinical criteria. Although various candidate markers are available, relevant markers for delineating risk categories have not yet been established. In this study, we analyzed the clinical characteristics of 431 patients with DCIS and performed whole-exome sequencing analysis in a 21-patient discovery cohort and targeted deep sequencing analysis in a 72-patient validation cohort. We determined that age <45 years, HER2 amplification, and GATA3 mutation are possible indicators of relapse. PIK3CA mutation negativity and PgR negativity were also suggested to be risk factors. Spatial transcriptome analysis further revealed that GATA3 dysfunction upregulates epithelial-to-mesenchymal transition and angiogenesis, followed by PgR downregulation. These results reveal the existence of heterogeneous cell populations in DCIS and provide predictive markers for classifying DCIS and optimizing treatment.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Age Factors
Aged
Aged, 80 and over
Breast Neoplasms/*genetics
Carcinoma, Intraductal, Noninfiltrating/*genetics
Female
GATA3 Transcription Factor/genetics/metabolism
*Gene Amplification
Gene Expression Profiling
Humans
Middle Aged
*Mutation
Erb-b2 Receptor Tyrosine Kinases/genetics/metabolism
Young Adult
RevDate: 2021-05-13
Clinical Features of Breast Cancer in South Korean Patients with Germline TP53 Gene Mutations.
Journal of breast cancer, 24(2):175-182.
PURPOSE: Li-Fraumeni syndrome (LFS) is a rare autosomal cancer syndrome caused by a germline mutation in the TP53 gene. Breast cancer in LFS patients is of various subtypes; however, limited data are available on the clinicopathological features of these subtypes and their appropriate treatments. This study aimed to review the clinical features and treatments for breast cancer in South Korean patients with germline TP53 mutations.
METHODS: Data on the clinicopathological features and treatment of all breast cancer patients with LFS were collected retrospectively from the available database of 4 tertiary hospitals in the Republic of Korea.
RESULTS: Twenty-one breast cancer cases in 12 unrelated women with confirmed germline TP53 mutations were included in the study. The median age at diagnosis was 33.5 years. The histopathological diagnosis included invasive ductal carcinoma (n = 16), ductal carcinoma in situ (n = 3), and malignant phyllodes tumor (n = 2). While 42% and 31% of the cases were positive for estrogen and progesterone receptors, respectively, 52.6% were human epidermal growth factor receptor 2 (HER2) positive, and 21% were triple-negative. The treatments included mastectomy (52%) and breast-conserving surgery (38%). Five patients underwent radiotherapy (RT). The median follow-up period was 87.5 (8-222) months. There were 3 ipsilateral and 4 contralateral breast recurrences during the follow-up, and 8 patients developed new primary cancers. In the post-RT subgroup, there were 2 ipsilateral and 2 contralateral breast recurrences in 1 patient, and 4 patients had a new primary cancer.
CONCLUSION: As reported in other countries, breast cancer in LFS patients in South Korea had an early onset and were predominantly but not exclusively positive for HER2. A multidisciplinary approach with adherence to the treatment guidelines, considering mastectomy, and avoiding RT is encouraged to prevent RT-associated sequelae in LFS patients.
Additional Links: PMID-33818021
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33818021,
year = {2021},
author = {Alyami, H and Yoo, TK and Cheun, JH and Lee, HB and Jung, SM and Ryu, JM and Bae, SJ and Jeong, J and Yoon, CI and Ahn, J and Paik, PS and Cho, MK and Park, WC},
title = {Clinical Features of Breast Cancer in South Korean Patients with Germline TP53 Gene Mutations.},
journal = {Journal of breast cancer},
volume = {24},
number = {2},
pages = {175-182},
pmid = {33818021},
issn = {1738-6756},
abstract = {PURPOSE: Li-Fraumeni syndrome (LFS) is a rare autosomal cancer syndrome caused by a germline mutation in the TP53 gene. Breast cancer in LFS patients is of various subtypes; however, limited data are available on the clinicopathological features of these subtypes and their appropriate treatments. This study aimed to review the clinical features and treatments for breast cancer in South Korean patients with germline TP53 mutations.
METHODS: Data on the clinicopathological features and treatment of all breast cancer patients with LFS were collected retrospectively from the available database of 4 tertiary hospitals in the Republic of Korea.
RESULTS: Twenty-one breast cancer cases in 12 unrelated women with confirmed germline TP53 mutations were included in the study. The median age at diagnosis was 33.5 years. The histopathological diagnosis included invasive ductal carcinoma (n = 16), ductal carcinoma in situ (n = 3), and malignant phyllodes tumor (n = 2). While 42% and 31% of the cases were positive for estrogen and progesterone receptors, respectively, 52.6% were human epidermal growth factor receptor 2 (HER2) positive, and 21% were triple-negative. The treatments included mastectomy (52%) and breast-conserving surgery (38%). Five patients underwent radiotherapy (RT). The median follow-up period was 87.5 (8-222) months. There were 3 ipsilateral and 4 contralateral breast recurrences during the follow-up, and 8 patients developed new primary cancers. In the post-RT subgroup, there were 2 ipsilateral and 2 contralateral breast recurrences in 1 patient, and 4 patients had a new primary cancer.
CONCLUSION: As reported in other countries, breast cancer in LFS patients in South Korea had an early onset and were predominantly but not exclusively positive for HER2. A multidisciplinary approach with adherence to the treatment guidelines, considering mastectomy, and avoiding RT is encouraged to prevent RT-associated sequelae in LFS patients.},
}
RevDate: 2021-04-22
The effect of language on performance: do gendered languages fail women in maths?.
NPJ science of learning, 6(1):9.
Research suggests that gendered languages are associated with gender inequality. However, as languages are embedded in cultures, evidence for causal effects are harder to provide. We contribute to this ongoing debate by exploring the relationship between gendered languages and the gender gap in mathematics achievements. We provide evidence for causality by exploiting the prominent (but not exclusive) practice in gendered languages of using masculine generics to address women. In an experiment on a large representative sample of the Hebrew-speaking adult population in Israel, we show that addressing women in the feminine, compared to addressing them in the masculine, reduces the gender gap in mathematics achievements by a third. These effects are stronger among participants who acquired the Hebrew language early in childhood rather than later in life, suggesting that it is the extent of language proficiency that generates one's sensitivity to being addressed in the masculine or in the feminine. Moreover, when women are addressed in the masculine, their efforts (in terms of time spent on the maths test) decrease and they report feeling that "science is for men" more than when addressed in the feminine. We supplement the analysis with two experiments that explore the roles of general and task-specific stereotypes in generating these effects.
Additional Links: PMID-33824344
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33824344,
year = {2021},
author = {Kricheli-Katz, T and Regev, T},
title = {The effect of language on performance: do gendered languages fail women in maths?.},
journal = {NPJ science of learning},
volume = {6},
number = {1},
pages = {9},
pmid = {33824344},
issn = {2056-7936},
abstract = {Research suggests that gendered languages are associated with gender inequality. However, as languages are embedded in cultures, evidence for causal effects are harder to provide. We contribute to this ongoing debate by exploring the relationship between gendered languages and the gender gap in mathematics achievements. We provide evidence for causality by exploiting the prominent (but not exclusive) practice in gendered languages of using masculine generics to address women. In an experiment on a large representative sample of the Hebrew-speaking adult population in Israel, we show that addressing women in the feminine, compared to addressing them in the masculine, reduces the gender gap in mathematics achievements by a third. These effects are stronger among participants who acquired the Hebrew language early in childhood rather than later in life, suggesting that it is the extent of language proficiency that generates one's sensitivity to being addressed in the masculine or in the feminine. Moreover, when women are addressed in the masculine, their efforts (in terms of time spent on the maths test) decrease and they report feeling that "science is for men" more than when addressed in the feminine. We supplement the analysis with two experiments that explore the roles of general and task-specific stereotypes in generating these effects.},
}
RevDate: 2021-04-08
Voltage-Gated Calcium Channel Antibody-Induced Oropharyngeal Dysphagia Presenting as a Paraneoplastic Neurological Complication in Breast Cancer.
Cureus, 13(3):e13677.
Paraneoplastic neurologic syndromes (PNS) are a group of disorders characterized by an autoimmune response against the nervous system due to cross-reactivity between malignant and normal neural tissue. The most commonly associated malignancies include small cell lung cancer, ovarian cancer, breast cancer, and lymphoma. Multiple PNS have been reported including paraneoplastic cerebellar degeneration, retinopathy, sensorimotor peripheral neuropathy, encephalopathy, opsoclonus-myoclonus syndrome, and stiff-person syndrome. We report a case of a 67-year-old woman with breast cancer who presented with a history of progressive oropharyngeal dysphagia as a paraneoplastic neurologic complication. She was diagnosed with invasive ductal carcinoma, nuclear grade 3 with moderate peritumoral lymphoid infiltrate. Hormone receptors were weakly positive for estrogen receptor (ER) (H score 15), weakly positive for progesterone receptor (PR) (H score 30), and negative for human epidermal growth factor receptor 2 (HER-2/NEU). The patient underwent a localized segmental mastectomy but declined any further adjuvant treatment. Three years after being diagnosed with invasive ductal carcinoma of the breast, she developed progressive oropharyngeal dysphagia that warranted percutaneous endoscopic gastrostomy (PEG) tube placement. Testing for onconeural antibodies was positive for voltage-gated calcium channel antibody. An extensive workup was negative for any alternative etiology that would explain her neurological symptoms. The patient declined further treatment and eventually succumbed to her illness.
Additional Links: PMID-33824828
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33824828,
year = {2021},
author = {Khanam, R and Fanous, IS and Fadhel, EN and Hyder, T and Brufsky, A},
title = {Voltage-Gated Calcium Channel Antibody-Induced Oropharyngeal Dysphagia Presenting as a Paraneoplastic Neurological Complication in Breast Cancer.},
journal = {Cureus},
volume = {13},
number = {3},
pages = {e13677},
pmid = {33824828},
issn = {2168-8184},
abstract = {Paraneoplastic neurologic syndromes (PNS) are a group of disorders characterized by an autoimmune response against the nervous system due to cross-reactivity between malignant and normal neural tissue. The most commonly associated malignancies include small cell lung cancer, ovarian cancer, breast cancer, and lymphoma. Multiple PNS have been reported including paraneoplastic cerebellar degeneration, retinopathy, sensorimotor peripheral neuropathy, encephalopathy, opsoclonus-myoclonus syndrome, and stiff-person syndrome. We report a case of a 67-year-old woman with breast cancer who presented with a history of progressive oropharyngeal dysphagia as a paraneoplastic neurologic complication. She was diagnosed with invasive ductal carcinoma, nuclear grade 3 with moderate peritumoral lymphoid infiltrate. Hormone receptors were weakly positive for estrogen receptor (ER) (H score 15), weakly positive for progesterone receptor (PR) (H score 30), and negative for human epidermal growth factor receptor 2 (HER-2/NEU). The patient underwent a localized segmental mastectomy but declined any further adjuvant treatment. Three years after being diagnosed with invasive ductal carcinoma of the breast, she developed progressive oropharyngeal dysphagia that warranted percutaneous endoscopic gastrostomy (PEG) tube placement. Testing for onconeural antibodies was positive for voltage-gated calcium channel antibody. An extensive workup was negative for any alternative etiology that would explain her neurological symptoms. The patient declined further treatment and eventually succumbed to her illness.},
}
RevDate: 2022-02-21
CmpDate: 2022-02-21
Acinic Cell Carcinoma of the Breast: Report of a Case With Immunohistochemical and Next-Generation Sequencing Studies.
International journal of surgical pathology, 29(8):882-886.
Acinic cell carcinoma of the breast is a rare subtype of triple-negative breast cancer that recapitulates the appearance of tumors seen in salivary glands. We present the case of a 42-year-old woman with an irregular, nontender mass above the left nipple during routine obstetric appointment at 24 weeks gestation. She was subsequently diagnosed with triple-negative invasive ductal carcinoma of the left breast, Nottingham grade 3, via core needle biopsy. She was treated with neoadjuvant therapy (doxorubucin and cyclophosphamide) antenatally and paclitaxel in the postpartum period followed by left mastectomy with sentinel node biopsy. The carcinoma in the mastectomy specimen showed a spectrum of morphologic patterns with immunohistochemistry revealing strong positivity for alpha-1-antichymotrypsin, epithelial membrane antigen (EMA), lysozyme, and S100. The histomorphology paired with the immunoprofile led us to the diagnosis of acinic cell carcinoma. We retrospectively performed immunostains in the core biopsy specimen, which demonstrated GATA-3 and DOG-1 positivity. Next-generation sequencing of the postneoadjuvant specimen using a 70-gene panel revealed 2 single-nucleotide variant (SNV) mutations: tumor protein 53 (TP53) (c.747G>T) SNV mutation and rearranged during transfection (RET) (c.2899G>A) SNV mutation.
Additional Links: PMID-33827325
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33827325,
year = {2021},
author = {Weaver, KD and Isom, J and Esnakula, A and Daily, K and Asirvatham, JR},
title = {Acinic Cell Carcinoma of the Breast: Report of a Case With Immunohistochemical and Next-Generation Sequencing Studies.},
journal = {International journal of surgical pathology},
volume = {29},
number = {8},
pages = {882-886},
doi = {10.1177/10668969211008508},
pmid = {33827325},
issn = {1940-2465},
mesh = {Adult ; Anoctamin-1/analysis/metabolism ; Biomarkers, Tumor/*analysis/genetics/metabolism ; Breast/*pathology/surgery ; Carcinoma, Acinar Cell/*diagnosis/genetics/pathology ; DNA Mutational Analysis ; Female ; GATA3 Transcription Factor/analysis/metabolism ; High-Throughput Nucleotide Sequencing ; Humans ; Immunohistochemistry ; Mastectomy ; Neoplasm Proteins/analysis/metabolism ; Polymorphism, Single Nucleotide ; Pregnancy ; Pregnancy Complications, Neoplastic/*diagnosis/genetics/pathology ; Proto-Oncogene Proteins c-ret/genetics ; Sentinel Lymph Node Biopsy ; Triple Negative Breast Neoplasms/*diagnosis/genetics/pathology ; Tumor Suppressor Protein p53/genetics ; },
abstract = {Acinic cell carcinoma of the breast is a rare subtype of triple-negative breast cancer that recapitulates the appearance of tumors seen in salivary glands. We present the case of a 42-year-old woman with an irregular, nontender mass above the left nipple during routine obstetric appointment at 24 weeks gestation. She was subsequently diagnosed with triple-negative invasive ductal carcinoma of the left breast, Nottingham grade 3, via core needle biopsy. She was treated with neoadjuvant therapy (doxorubucin and cyclophosphamide) antenatally and paclitaxel in the postpartum period followed by left mastectomy with sentinel node biopsy. The carcinoma in the mastectomy specimen showed a spectrum of morphologic patterns with immunohistochemistry revealing strong positivity for alpha-1-antichymotrypsin, epithelial membrane antigen (EMA), lysozyme, and S100. The histomorphology paired with the immunoprofile led us to the diagnosis of acinic cell carcinoma. We retrospectively performed immunostains in the core biopsy specimen, which demonstrated GATA-3 and DOG-1 positivity. Next-generation sequencing of the postneoadjuvant specimen using a 70-gene panel revealed 2 single-nucleotide variant (SNV) mutations: tumor protein 53 (TP53) (c.747G>T) SNV mutation and rearranged during transfection (RET) (c.2899G>A) SNV mutation.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Anoctamin-1/analysis/metabolism
Biomarkers, Tumor/*analysis/genetics/metabolism
Breast/*pathology/surgery
Carcinoma, Acinar Cell/*diagnosis/genetics/pathology
DNA Mutational Analysis
Female
GATA3 Transcription Factor/analysis/metabolism
High-Throughput Nucleotide Sequencing
Humans
Immunohistochemistry
Mastectomy
Neoplasm Proteins/analysis/metabolism
Polymorphism, Single Nucleotide
Pregnancy
Pregnancy Complications, Neoplastic/*diagnosis/genetics/pathology
Proto-Oncogene Proteins c-ret/genetics
Sentinel Lymph Node Biopsy
Triple Negative Breast Neoplasms/*diagnosis/genetics/pathology
Tumor Suppressor Protein p53/genetics
RevDate: 2022-04-17
CmpDate: 2022-04-04
KDM3B-ETF1 fusion gene downregulates LMO2 via the WNT/β-catenin signaling pathway, promoting metastasis of invasive ductal carcinoma.
Cancer gene therapy, 29(2):215-224.
Breast cancer is the most common malignancy for women, with invasive ductal carcinoma being the largest subtype of breast cancers, accounting for 75-80% of cases. However, the underlying mechanism of invasive ductal carcinoma remains unclear. In this study, we investigate the possible effects KDM3B-ETF1 fusion gene has on breast cancer cell metastasis, invasion and its downstream signaling mediators as revealed from RNA sequence data analysis. As predicted, KDM3B-ETF1 expression was increased in breast cancer tissues and cells. Overexpression of KDM3B-ETF1 in cancer cell lines promoted the growth and invasion of breast cancer cells, while KDM3B-ETF1 knockdown showed the opposite effects on malignant cell growth and invasion both in vivo and in vitro as evidenced by cell counting kit-8, Transwell assay and tumor xenograft in nude mice. On the contrary, LIM Domain Only 2 (LMO2) expression was significantly reduced in breast cancer tissues and cells. According to chromatin immunoprecipitation and Western blot analysis, KDM3B-ETF1 targets LMO2 and reduced the expression of LMO2, leading to an increase in WNT/β-catenin signaling pathway and thus promoting invasion. In conclusion, fusion gene KDM3B-ETF1 inhibits LMO2, activates the Wnt/β-catenin signaling pathway that leads to increased breast cancer cell invasion and metastasis, providing a novel insight into developing therapeutic strategies. These results provide novel insights into the molecular mechanism of invasive ductal carcinomas, which may lead to potential therapeutic targets.
Additional Links: PMID-33828234
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33828234,
year = {2022},
author = {Hu, A and Hong, F and Li, D and Xie, Q and Chen, K and Zhu, L and He, H},
title = {KDM3B-ETF1 fusion gene downregulates LMO2 via the WNT/β-catenin signaling pathway, promoting metastasis of invasive ductal carcinoma.},
journal = {Cancer gene therapy},
volume = {29},
number = {2},
pages = {215-224},
pmid = {33828234},
issn = {1476-5500},
mesh = {Adaptor Proteins, Signal Transducing/genetics/metabolism ; Animals ; *Breast Neoplasms/genetics/pathology ; *Carcinoma, Ductal/genetics ; Cell Line, Tumor ; Cell Movement/genetics ; Cell Proliferation/genetics ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Jumonji Domain-Containing Histone Demethylases/genetics/metabolism ; LIM Domain Proteins ; Mice ; Mice, Nude ; Neoplasm Invasiveness/genetics ; Proto-Oncogene Proteins/genetics/metabolism ; Wnt Signaling Pathway ; beta Catenin/genetics/metabolism ; },
abstract = {Breast cancer is the most common malignancy for women, with invasive ductal carcinoma being the largest subtype of breast cancers, accounting for 75-80% of cases. However, the underlying mechanism of invasive ductal carcinoma remains unclear. In this study, we investigate the possible effects KDM3B-ETF1 fusion gene has on breast cancer cell metastasis, invasion and its downstream signaling mediators as revealed from RNA sequence data analysis. As predicted, KDM3B-ETF1 expression was increased in breast cancer tissues and cells. Overexpression of KDM3B-ETF1 in cancer cell lines promoted the growth and invasion of breast cancer cells, while KDM3B-ETF1 knockdown showed the opposite effects on malignant cell growth and invasion both in vivo and in vitro as evidenced by cell counting kit-8, Transwell assay and tumor xenograft in nude mice. On the contrary, LIM Domain Only 2 (LMO2) expression was significantly reduced in breast cancer tissues and cells. According to chromatin immunoprecipitation and Western blot analysis, KDM3B-ETF1 targets LMO2 and reduced the expression of LMO2, leading to an increase in WNT/β-catenin signaling pathway and thus promoting invasion. In conclusion, fusion gene KDM3B-ETF1 inhibits LMO2, activates the Wnt/β-catenin signaling pathway that leads to increased breast cancer cell invasion and metastasis, providing a novel insight into developing therapeutic strategies. These results provide novel insights into the molecular mechanism of invasive ductal carcinomas, which may lead to potential therapeutic targets.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adaptor Proteins, Signal Transducing/genetics/metabolism
Animals
*Breast Neoplasms/genetics/pathology
*Carcinoma, Ductal/genetics
Cell Line, Tumor
Cell Movement/genetics
Cell Proliferation/genetics
Female
Gene Expression Regulation, Neoplastic
Humans
Jumonji Domain-Containing Histone Demethylases/genetics/metabolism
LIM Domain Proteins
Mice
Mice, Nude
Neoplasm Invasiveness/genetics
Proto-Oncogene Proteins/genetics/metabolism
Wnt Signaling Pathway
beta Catenin/genetics/metabolism
RevDate: 2021-07-19
CmpDate: 2021-07-19
From virus to diabetes therapy: Characterization of a specific insulin-degrading enzyme inhibitor for diabetes treatment.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 35(5):e21374.
Inhibition of insulin-degrading enzyme (IDE) is a possible target for treating diabetes. However, it has not yet evolved into a medical intervention, mainly because most developed inhibitors target the zinc in IDE's catalytic site, potentially causing toxicity to other essential metalloproteases. Since IDE is a cellular receptor for the varicella-zoster virus (VZV), we constructed a VZV-based inhibitor. We computationally characterized its interaction site with IDE showing that the peptide specifically binds inside IDE's central cavity, however, not in close proximity to the zinc ion. We confirmed the peptide's effective inhibition on IDE activity in vitro and showed its efficacy in ameliorating insulin-related defects in types 1 and 2 diabetes mouse models. In addition, we suggest that inhibition of IDE may ameliorate the pro-inflammatory profile of CD4[+] T-cells toward insulin. Together, we propose a potential role of a designed VZV-derived peptide to serve as a selectively-targeted and as an efficient diabetes therapy.
Additional Links: PMID-33835493
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33835493,
year = {2021},
author = {Nash, Y and Ganoth, A and Borenstein-Auerbach, N and Levy-Barazany, H and Goldsmith, G and Kopelevich, A and Pozyuchenko, K and Sakhneny, L and Lazdon, E and Blanga-Kanfi, S and Alhadeff, R and Benromano, T and Landsman, L and Tsfadia, Y and Frenkel, D},
title = {From virus to diabetes therapy: Characterization of a specific insulin-degrading enzyme inhibitor for diabetes treatment.},
journal = {FASEB journal : official publication of the Federation of American Societies for Experimental Biology},
volume = {35},
number = {5},
pages = {e21374},
doi = {10.1096/fj.201901945R},
pmid = {33835493},
issn = {1530-6860},
mesh = {Animals ; CD4-Positive T-Lymphocytes/immunology ; Diabetes Mellitus, Experimental/etiology/pathology/*therapy ; Diabetes Mellitus, Type 1/etiology/pathology/*therapy ; Diabetes Mellitus, Type 2/etiology/pathology/*therapy ; Enzyme Inhibitors/administration & dosage ; Female ; Herpesvirus 3, Human/physiology ; Insulin/*metabolism ; Insulysin/*antagonists & inhibitors/genetics/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred NOD ; Mice, Knockout ; Peptide Fragments/*administration & dosage ; Viral Envelope Proteins/*metabolism ; },
abstract = {Inhibition of insulin-degrading enzyme (IDE) is a possible target for treating diabetes. However, it has not yet evolved into a medical intervention, mainly because most developed inhibitors target the zinc in IDE's catalytic site, potentially causing toxicity to other essential metalloproteases. Since IDE is a cellular receptor for the varicella-zoster virus (VZV), we constructed a VZV-based inhibitor. We computationally characterized its interaction site with IDE showing that the peptide specifically binds inside IDE's central cavity, however, not in close proximity to the zinc ion. We confirmed the peptide's effective inhibition on IDE activity in vitro and showed its efficacy in ameliorating insulin-related defects in types 1 and 2 diabetes mouse models. In addition, we suggest that inhibition of IDE may ameliorate the pro-inflammatory profile of CD4[+] T-cells toward insulin. Together, we propose a potential role of a designed VZV-derived peptide to serve as a selectively-targeted and as an efficient diabetes therapy.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Animals
CD4-Positive T-Lymphocytes/immunology
Diabetes Mellitus, Experimental/etiology/pathology/*therapy
Diabetes Mellitus, Type 1/etiology/pathology/*therapy
Diabetes Mellitus, Type 2/etiology/pathology/*therapy
Enzyme Inhibitors/administration & dosage
Female
Herpesvirus 3, Human/physiology
Insulin/*metabolism
Insulysin/*antagonists & inhibitors/genetics/metabolism
Male
Mice
Mice, Inbred C57BL
Mice, Inbred NOD
Mice, Knockout
Peptide Fragments/*administration & dosage
Viral Envelope Proteins/*metabolism
RevDate: 2023-01-30
CmpDate: 2021-04-28
EFA6B regulates a stop signal for collective invasion in breast cancer.
Nature communications, 12(1):2198.
Cancer is initiated by somatic mutations in oncogenes or tumor suppressor genes. However, additional alterations provide selective advantages to the tumor cells to resist treatment and develop metastases. Their identification is of paramount importance. Reduced expression of EFA6B (Exchange Factor for ARF6, B) is associated with breast cancer of poor prognosis. Here, we report that loss of EFA6B triggers a transcriptional reprogramming of the cell-to-ECM interaction machinery and unleashes CDC42-dependent collective invasion in collagen. In xenograft experiments, MCF10 DCIS.com cells, a DCIS-to-IDC transition model, invades faster when knocked-out for EFA6B. In addition, invasive and metastatic tumors isolated from patients have lower expression of EFA6B and display gene ontology signatures identical to those of EFA6B knock-out cells. Thus, we reveal an EFA6B-regulated molecular mechanism that controls the invasive potential of mammary cells; this finding opens up avenues for the treatment of invasive breast cancer.
Additional Links: PMID-33850160
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33850160,
year = {2021},
author = {Fayad, R and Rojas, MV and Partisani, M and Finetti, P and Dib, S and Abelanet, S and Virolle, V and Farina, A and Cabaud, O and Lopez, M and Birnbaum, D and Bertucci, F and Franco, M and Luton, F},
title = {EFA6B regulates a stop signal for collective invasion in breast cancer.},
journal = {Nature communications},
volume = {12},
number = {1},
pages = {2198},
pmid = {33850160},
issn = {2041-1723},
mesh = {Animals ; Breast Neoplasms/*genetics/*metabolism ; Carcinoma, Ductal, Breast/genetics/metabolism ; Cell Line, Tumor ; Female ; Gene Expression Profiling ; *Gene Expression Regulation, Neoplastic ; Gene Knockout Techniques ; Guanine Nucleotide Exchange Factors/*genetics/*metabolism ; Humans ; Mice ; Mice, Nude ; Transcriptome ; cdc42 GTP-Binding Protein ; },
abstract = {Cancer is initiated by somatic mutations in oncogenes or tumor suppressor genes. However, additional alterations provide selective advantages to the tumor cells to resist treatment and develop metastases. Their identification is of paramount importance. Reduced expression of EFA6B (Exchange Factor for ARF6, B) is associated with breast cancer of poor prognosis. Here, we report that loss of EFA6B triggers a transcriptional reprogramming of the cell-to-ECM interaction machinery and unleashes CDC42-dependent collective invasion in collagen. In xenograft experiments, MCF10 DCIS.com cells, a DCIS-to-IDC transition model, invades faster when knocked-out for EFA6B. In addition, invasive and metastatic tumors isolated from patients have lower expression of EFA6B and display gene ontology signatures identical to those of EFA6B knock-out cells. Thus, we reveal an EFA6B-regulated molecular mechanism that controls the invasive potential of mammary cells; this finding opens up avenues for the treatment of invasive breast cancer.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Animals
Breast Neoplasms/*genetics/*metabolism
Carcinoma, Ductal, Breast/genetics/metabolism
Cell Line, Tumor
Female
Gene Expression Profiling
*Gene Expression Regulation, Neoplastic
Gene Knockout Techniques
Guanine Nucleotide Exchange Factors/*genetics/*metabolism
Humans
Mice
Mice, Nude
Transcriptome
cdc42 GTP-Binding Protein
RevDate: 2021-05-31
CmpDate: 2021-05-31
Neuropsychological correlates of prospective memory: A comparison between tremor-dominant Parkinson's disease and cervical dystonia.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia, 87:156-161.
Cervical Dystonia (CD) and Parkinson's disease, particularly tremor-dominant motor phenotype (TD-PD), showed a selective deficit of time-based prospective memory (TBPM). The two movement disorders are mainly characterized by dysfunctions of basal-ganglia and prefrontal cortex but it is reported that cerebellum also plays a key role in their pathogenesis. These cerebral structures are specifically involved in TBPM rather than in event-based PM (EBPM), but until now no study directly compared these two components of PM between CD and TD-PD patients. Therefore, the present study aimed at investigating if differences in PM functioning between CD and TD-PD patients might exist and if the type of movement disorder moderated the relationship between deficit of PM and deficit of executive functions and retrospective memory. Thirty TD-PD, 27CD patients and 29 healthy subjects (HCs), matched for demographic features, underwent neuropsychological tests for PM, executive functions, retrospective memory and self-rated questionnaires. The three groups did not differ on neuropsychological variables except for TBPM where TD-PD and CD patients performed worse than HCs; moreover, TD-PD performed worse than CD patients. Moderation analysis indicated that the type of movement disorder moderated the relationship between executive dysfunction and TBPM, but not EBPM. In conclusion, selective deficit of TBPM characterizes both CD and TD-PD but it is associated with executive dysfunction only in TD-PD. It might be possible to speculate that the involvement of the cerebellum, responsible for internal timing processes, could explain the impairment of TBPM in both movement disorders. This issue deserves to be explored in future neuroimaging studies.
Additional Links: PMID-33863525
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33863525,
year = {2021},
author = {D'Iorio, A and Esposito, M and Maggi, G and Amboni, M and Vitale, C and Santangelo, G},
title = {Neuropsychological correlates of prospective memory: A comparison between tremor-dominant Parkinson's disease and cervical dystonia.},
journal = {Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia},
volume = {87},
number = {},
pages = {156-161},
doi = {10.1016/j.jocn.2021.03.006},
pmid = {33863525},
issn = {1532-2653},
mesh = {Aged ; Cognitive Dysfunction/diagnosis/etiology/*psychology ; Executive Function/physiology ; Female ; Humans ; Male ; Memory Disorders/diagnosis/etiology/psychology ; *Memory, Episodic ; Middle Aged ; *Neuropsychological Tests ; Parkinson Disease/complications/diagnosis/*psychology ; Retrospective Studies ; Torticollis/complications/diagnosis/*psychology ; Tremor/complications/diagnosis/*psychology ; },
abstract = {Cervical Dystonia (CD) and Parkinson's disease, particularly tremor-dominant motor phenotype (TD-PD), showed a selective deficit of time-based prospective memory (TBPM). The two movement disorders are mainly characterized by dysfunctions of basal-ganglia and prefrontal cortex but it is reported that cerebellum also plays a key role in their pathogenesis. These cerebral structures are specifically involved in TBPM rather than in event-based PM (EBPM), but until now no study directly compared these two components of PM between CD and TD-PD patients. Therefore, the present study aimed at investigating if differences in PM functioning between CD and TD-PD patients might exist and if the type of movement disorder moderated the relationship between deficit of PM and deficit of executive functions and retrospective memory. Thirty TD-PD, 27CD patients and 29 healthy subjects (HCs), matched for demographic features, underwent neuropsychological tests for PM, executive functions, retrospective memory and self-rated questionnaires. The three groups did not differ on neuropsychological variables except for TBPM where TD-PD and CD patients performed worse than HCs; moreover, TD-PD performed worse than CD patients. Moderation analysis indicated that the type of movement disorder moderated the relationship between executive dysfunction and TBPM, but not EBPM. In conclusion, selective deficit of TBPM characterizes both CD and TD-PD but it is associated with executive dysfunction only in TD-PD. It might be possible to speculate that the involvement of the cerebellum, responsible for internal timing processes, could explain the impairment of TBPM in both movement disorders. This issue deserves to be explored in future neuroimaging studies.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Aged
Cognitive Dysfunction/diagnosis/etiology/*psychology
Executive Function/physiology
Female
Humans
Male
Memory Disorders/diagnosis/etiology/psychology
*Memory, Episodic
Middle Aged
*Neuropsychological Tests
Parkinson Disease/complications/diagnosis/*psychology
Retrospective Studies
Torticollis/complications/diagnosis/*psychology
Tremor/complications/diagnosis/*psychology
RevDate: 2026-01-27
CmpDate: 2021-11-19
Establishment and characterization of a new spontaneously immortalized ER[-]/PR[-]/HER2[+] human breast cancer cell line, DHSF-BR16.
Scientific reports, 11(1):8340.
Invasive ductal carcinoma (IDC) constitutes the most frequent malignant cancer endangering women's health. In this study, a new spontaneously immortalized breast cancer cell line, DHSF-BR16 cells, was isolated from the primary IDC of a 74-years old female patient, treated with neoadjuvant chemotherapy and disease-free 5-years after adjuvant chemotherapy. Primary breast cancer tissue surgically removed was classified as ER[-]/PR[-]/HER2[+], and the same phenotype was maintained by DHSF-BR16 cells. We examined DHSF-BR16 cell morphology and relevant biological and molecular markers, as well as their response to anticancer drugs commonly used for breast cancer treatment. MCF-7 cells were used for comparison purposes. The DHSF-BR16 cells showed the ability to form spheroids and migrate. Furthermore, DHSF-BR16 cells showed a mixed stemness phenotype (i.e. CD44[+]/CD24[-/low]), high levels of cytokeratin 7, moderate levels of cytokeratin 8 and 18, EpCAM and E-Cadh. Transcriptome analysis showed 2071 differentially expressed genes between DHSF-BR16 and MCF-7 cells (logFC > 2, p-adj < 0.01). Several genes were highly upregulated or downregulated in the new cell line (log2 scale fold change magnitude within - 9.6 to + 12.13). A spontaneous immortalization signature, mainly represented by extracellular exosomes-, plasma membrane- and endoplasmic reticulum membrane pathways (GO database) as well as by metabolic pathways (KEGG database) was observed in DHSF-BR16 cells. Also, these cells were more resistant to anthracyclines compared with MCF-7 cells. Overall, DHSF-BR16 cell line represents a relevant model useful to investigate cancer biology, to identify both novel prognostic and drug response predictive biomarkers as well as to assess new therapeutic strategies.
Additional Links: PMID-33863935
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33863935,
year = {2021},
author = {Nobili, S and Mannini, A and Parenti, A and Raggi, C and Lapucci, A and Chiorino, G and Paccosi, S and Di Gennaro, P and Vezzosi, V and Romagnoli, P and Susini, T and Coronnello, M},
title = {Establishment and characterization of a new spontaneously immortalized ER[-]/PR[-]/HER2[+] human breast cancer cell line, DHSF-BR16.},
journal = {Scientific reports},
volume = {11},
number = {1},
pages = {8340},
pmid = {33863935},
issn = {2045-2322},
mesh = {Aged ; Breast Neoplasms/drug therapy/*genetics/*pathology/surgery ; CD24 Antigen/genetics/metabolism ; Carcinoma, Ductal/drug therapy/*genetics/*pathology/surgery ; Cell Line, Tumor ; Cell Movement ; Chemotherapy, Adjuvant ; Epithelial Cell Adhesion Molecule/genetics/metabolism ; Female ; Humans ; Hyaluronan Receptors/genetics/metabolism ; Intracellular Membranes/metabolism ; Keratin-7/genetics/metabolism ; Keratin-8/genetics/metabolism ; Neoadjuvant Therapy ; *Erb-b2 Receptor Tyrosine Kinases ; *Receptors, Estrogen ; *Receptors, Progesterone ; Spheroids, Cellular/pathology ; },
abstract = {Invasive ductal carcinoma (IDC) constitutes the most frequent malignant cancer endangering women's health. In this study, a new spontaneously immortalized breast cancer cell line, DHSF-BR16 cells, was isolated from the primary IDC of a 74-years old female patient, treated with neoadjuvant chemotherapy and disease-free 5-years after adjuvant chemotherapy. Primary breast cancer tissue surgically removed was classified as ER[-]/PR[-]/HER2[+], and the same phenotype was maintained by DHSF-BR16 cells. We examined DHSF-BR16 cell morphology and relevant biological and molecular markers, as well as their response to anticancer drugs commonly used for breast cancer treatment. MCF-7 cells were used for comparison purposes. The DHSF-BR16 cells showed the ability to form spheroids and migrate. Furthermore, DHSF-BR16 cells showed a mixed stemness phenotype (i.e. CD44[+]/CD24[-/low]), high levels of cytokeratin 7, moderate levels of cytokeratin 8 and 18, EpCAM and E-Cadh. Transcriptome analysis showed 2071 differentially expressed genes between DHSF-BR16 and MCF-7 cells (logFC > 2, p-adj < 0.01). Several genes were highly upregulated or downregulated in the new cell line (log2 scale fold change magnitude within - 9.6 to + 12.13). A spontaneous immortalization signature, mainly represented by extracellular exosomes-, plasma membrane- and endoplasmic reticulum membrane pathways (GO database) as well as by metabolic pathways (KEGG database) was observed in DHSF-BR16 cells. Also, these cells were more resistant to anthracyclines compared with MCF-7 cells. Overall, DHSF-BR16 cell line represents a relevant model useful to investigate cancer biology, to identify both novel prognostic and drug response predictive biomarkers as well as to assess new therapeutic strategies.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Aged
Breast Neoplasms/drug therapy/*genetics/*pathology/surgery
CD24 Antigen/genetics/metabolism
Carcinoma, Ductal/drug therapy/*genetics/*pathology/surgery
Cell Line, Tumor
Cell Movement
Chemotherapy, Adjuvant
Epithelial Cell Adhesion Molecule/genetics/metabolism
Female
Humans
Hyaluronan Receptors/genetics/metabolism
Intracellular Membranes/metabolism
Keratin-7/genetics/metabolism
Keratin-8/genetics/metabolism
Neoadjuvant Therapy
*Erb-b2 Receptor Tyrosine Kinases
*Receptors, Estrogen
*Receptors, Progesterone
Spheroids, Cellular/pathology
RevDate: 2022-12-07
CmpDate: 2021-07-20
Delayed Gemcitabine-Induced Posterior Reversible Encephalopathy Syndrome.
The American journal of the medical sciences, 361(6):795-798.
INTRODUCTION: Posterior reversible encephalopathy syndrome (PRES) is a rare clinical-radiographic syndrome that has been expanding rapidly in the world of clinical medical oncology and hematology. In this article, we provide a unique patient case of delayed gemcitabine-induced PRES.
BRIEF CASE REPORT: A 60-year-old African American female with significant past medical history of ER+/PR+/HER2- invasive ductal carcinoma of the left breast is seen in the medical oncology clinic with vague, mild complaints of lightheadedness. She had progressed on multiple lines of chemotherapy and was ultimately switched to gemcitabine. One month after her third dose of gemcitabine, she developed acute vision loss and soon developed generalized tonic-clonic seizure. Extensive workup was unrevealing other than PRES and she slowly improved with supportive care and withdrawal of the medication.
DISCUSSION: Multiple case reports have described PRES in the context of combination chemotherapy with gemcitabine and a platinum agent in the treatment of gastrointestinal malignancies. With growing evidence, this case is consistent with the hypothesis that gemcitabine as monotherapy has a direct association with PRES. This case highlights a unique aspect in that PRES can occur at a delayed time interval, much further than the expected hours to days after the previous treatment.
Additional Links: PMID-33888263
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33888263,
year = {2021},
author = {Schaub, JR and Tang, SC},
title = {Delayed Gemcitabine-Induced Posterior Reversible Encephalopathy Syndrome.},
journal = {The American journal of the medical sciences},
volume = {361},
number = {6},
pages = {795-798},
doi = {10.1016/j.amjms.2020.10.030},
pmid = {33888263},
issn = {1538-2990},
mesh = {Antimetabolites, Antineoplastic/*adverse effects ; Deoxycytidine/adverse effects/*analogs & derivatives ; Diagnosis, Differential ; Female ; Humans ; Middle Aged ; Posterior Leukoencephalopathy Syndrome/*chemically induced/*diagnostic imaging ; Time Factors ; Gemcitabine ; },
abstract = {INTRODUCTION: Posterior reversible encephalopathy syndrome (PRES) is a rare clinical-radiographic syndrome that has been expanding rapidly in the world of clinical medical oncology and hematology. In this article, we provide a unique patient case of delayed gemcitabine-induced PRES.
BRIEF CASE REPORT: A 60-year-old African American female with significant past medical history of ER+/PR+/HER2- invasive ductal carcinoma of the left breast is seen in the medical oncology clinic with vague, mild complaints of lightheadedness. She had progressed on multiple lines of chemotherapy and was ultimately switched to gemcitabine. One month after her third dose of gemcitabine, she developed acute vision loss and soon developed generalized tonic-clonic seizure. Extensive workup was unrevealing other than PRES and she slowly improved with supportive care and withdrawal of the medication.
DISCUSSION: Multiple case reports have described PRES in the context of combination chemotherapy with gemcitabine and a platinum agent in the treatment of gastrointestinal malignancies. With growing evidence, this case is consistent with the hypothesis that gemcitabine as monotherapy has a direct association with PRES. This case highlights a unique aspect in that PRES can occur at a delayed time interval, much further than the expected hours to days after the previous treatment.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Antimetabolites, Antineoplastic/*adverse effects
Deoxycytidine/adverse effects/*analogs & derivatives
Diagnosis, Differential
Female
Humans
Middle Aged
Posterior Leukoencephalopathy Syndrome/*chemically induced/*diagnostic imaging
Time Factors
Gemcitabine
RevDate: 2023-09-15
CmpDate: 2021-05-10
Mining immune-related genes with prognostic value in the tumor microenvironment of breast invasive ductal carcinoma.
Medicine, 100(17):e25715.
The tumor microenvironment (TME) plays an important role in the development of breast cancer. Due to limitations in experimental conditions, the molecular mechanism of TME in breast cancer has not yet been elucidated. With the development of bioinformatics, the study of TME has become convenient and reliable.Gene expression and clinical feature data were downloaded from The Cancer Genome Atlas database and the Molecular Taxonomy of Breast Cancer International Consortium database. Immune scores and stromal scores were calculated using the Estimation of Stromal and Immune Cells in Malignant Tumor Tissues Using Expression Data algorithm. The interaction of genes was examined with protein-protein interaction and co-expression analysis. The function of genes was analyzed by gene ontology enrichment analysis, Kyoto Encyclopedia of Genes and Genomes analysis and gene set enrichment analysis. The clinical significance of genes was assessed with Kaplan-Meier analysis and univariate/multivariate Cox regression analysis.Our results showed that the immune scores and stromal scores of breast invasive ductal carcinoma (IDC) were significantly lower than those of invasive lobular carcinoma. The immune scores were significantly related to overall survival of breast IDC patients and both the immune and stromal scores were significantly related to clinical features of these patients. According to the level of immune/stromal scores, 179 common differentially expressed genes and 5 hub genes with prognostic value were identified. In addition, the clinical significance of the hub genes was validated with data from the molecular taxonomy of breast cancer international consortium database, and gene set enrichment analysis analysis showed that these hub genes were mainly enriched in signaling pathways of the immune system and breast cancer.We identified five immune-related hub genes with prognostic value in the TME of breast IDC, which may partly determine the prognosis of breast cancer and provide some direction for development of targeted treatments in the future.
Additional Links: PMID-33907159
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33907159,
year = {2021},
author = {He, Q and Xue, S and Wa, Q and He, M and Feng, S and Chen, Z and Chen, W and Luo, X},
title = {Mining immune-related genes with prognostic value in the tumor microenvironment of breast invasive ductal carcinoma.},
journal = {Medicine},
volume = {100},
number = {17},
pages = {e25715},
pmid = {33907159},
issn = {1536-5964},
support = {No. 81572769, No. 81372238//National Natural Science Foundation of China/ ; 2016ZDXM006//Natural Science Foundation of Chongqing (CN)/ ; No. 20PJ198//Scientific Research Foundation of Health Commission of Sichuan Provinc/ ; },
mesh = {Biomarkers, Tumor/*genetics ; *Breast Neoplasms/genetics/immunology/pathology ; *Carcinoma, Ductal/genetics/immunology/pathology ; Databases, Genetic ; Female ; Gene Expression Profiling/methods ; *Gene Expression Regulation, Neoplastic ; Gene Ontology ; Humans ; Kaplan-Meier Estimate ; Molecular Targeted Therapy/methods ; Neoplasm Invasiveness/genetics ; Neoplasm Staging ; Prognosis ; Proportional Hazards Models ; *Tumor Microenvironment/genetics/immunology ; },
abstract = {The tumor microenvironment (TME) plays an important role in the development of breast cancer. Due to limitations in experimental conditions, the molecular mechanism of TME in breast cancer has not yet been elucidated. With the development of bioinformatics, the study of TME has become convenient and reliable.Gene expression and clinical feature data were downloaded from The Cancer Genome Atlas database and the Molecular Taxonomy of Breast Cancer International Consortium database. Immune scores and stromal scores were calculated using the Estimation of Stromal and Immune Cells in Malignant Tumor Tissues Using Expression Data algorithm. The interaction of genes was examined with protein-protein interaction and co-expression analysis. The function of genes was analyzed by gene ontology enrichment analysis, Kyoto Encyclopedia of Genes and Genomes analysis and gene set enrichment analysis. The clinical significance of genes was assessed with Kaplan-Meier analysis and univariate/multivariate Cox regression analysis.Our results showed that the immune scores and stromal scores of breast invasive ductal carcinoma (IDC) were significantly lower than those of invasive lobular carcinoma. The immune scores were significantly related to overall survival of breast IDC patients and both the immune and stromal scores were significantly related to clinical features of these patients. According to the level of immune/stromal scores, 179 common differentially expressed genes and 5 hub genes with prognostic value were identified. In addition, the clinical significance of the hub genes was validated with data from the molecular taxonomy of breast cancer international consortium database, and gene set enrichment analysis analysis showed that these hub genes were mainly enriched in signaling pathways of the immune system and breast cancer.We identified five immune-related hub genes with prognostic value in the TME of breast IDC, which may partly determine the prognosis of breast cancer and provide some direction for development of targeted treatments in the future.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Biomarkers, Tumor/*genetics
*Breast Neoplasms/genetics/immunology/pathology
*Carcinoma, Ductal/genetics/immunology/pathology
Databases, Genetic
Female
Gene Expression Profiling/methods
*Gene Expression Regulation, Neoplastic
Gene Ontology
Humans
Kaplan-Meier Estimate
Molecular Targeted Therapy/methods
Neoplasm Invasiveness/genetics
Neoplasm Staging
Prognosis
Proportional Hazards Models
*Tumor Microenvironment/genetics/immunology
RevDate: 2021-09-13
CmpDate: 2021-09-13
Consumption of soybean or olive oil at recommended concentrations increased the intestinal microbiota diversity and insulin sensitivity and prevented fatty liver compared to the effects of coconut oil.
The Journal of nutritional biochemistry, 94:108751.
Diets rich in mono or polyunsaturated fats have been associated with a healthy phenotype, but there is controversial evidence about coconut oil (CO), which is rich in saturated medium-chain fatty acids. Therefore, the purpose of the present work was to study whether different types of oils rich in polyunsaturated (soybean oil, SO), monounsaturated (olive oil, OO), or saturated fatty acids (coconut oil, CO) can regulate the gut microbiota, insulin sensitivity, inflammation, mitochondrial function in wild type and PPARα KO mice. The group that received SO showed the highest microbial diversity, increase in Akkermansia muciniphila, high insulin sensitivity and low grade inflammation, The OO group showed similar insulin sensitivity and insulin signaling than SO, increase in Bifidobacterium, increase in fatty acid oxidation and low grade inflammation. The CO consumption led to the lowest bacterial diversity, a 9-fold increase in the LPS concentration leading to metabolic endotoxemia, hepatic steatosis, increased lipogenesis, highest LDL-cholesterol concentration and the lowest respiratory capacity and fatty acid oxidation in the mitochondria. The absence of PPARα decreased alpha diversity and increased LPS concentration particularly in the CO group, and increased insulin sensitivity in the groups fed SO or OO. These results indicate that consuming mono or polyunsaturated fatty acids produced health benefits at the recommended intake but a high concentration of oils (three times the recommended oil intake in rodents) significantly decreased the microbial alpha-diversity independent of the type of oil.
Additional Links: PMID-33915261
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33915261,
year = {2021},
author = {López-Salazar, V and Tapia, MS and Tobón-Cornejo, S and Díaz, D and Alemán-Escondrillas, G and Granados-Portillo, O and Noriega, L and Tovar, AR and Torres, N},
title = {Consumption of soybean or olive oil at recommended concentrations increased the intestinal microbiota diversity and insulin sensitivity and prevented fatty liver compared to the effects of coconut oil.},
journal = {The Journal of nutritional biochemistry},
volume = {94},
number = {},
pages = {108751},
doi = {10.1016/j.jnutbio.2021.108751},
pmid = {33915261},
issn = {1873-4847},
mesh = {Animals ; Bacteria/classification/genetics ; Cells, Cultured ; Coconut Oil/*pharmacology ; Computational Biology ; DNA, Bacterial/genetics ; Feces/chemistry ; Gastrointestinal Microbiome/*drug effects ; Gene Expression Regulation/drug effects ; Genotype ; Glucose Intolerance ; Hepatocytes/drug effects ; Insulin Resistance ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; NF-kappa B/genetics/metabolism ; Non-alcoholic Fatty Liver Disease/*prevention & control ; Olive Oil/*pharmacology ; Oxygen Consumption/drug effects ; PPAR alpha/genetics/*metabolism ; RNA, Bacterial/genetics ; RNA, Ribosomal, 16S ; Random Allocation ; Soybean Oil/*pharmacology ; Toll-Like Receptor 4/genetics/metabolism ; },
abstract = {Diets rich in mono or polyunsaturated fats have been associated with a healthy phenotype, but there is controversial evidence about coconut oil (CO), which is rich in saturated medium-chain fatty acids. Therefore, the purpose of the present work was to study whether different types of oils rich in polyunsaturated (soybean oil, SO), monounsaturated (olive oil, OO), or saturated fatty acids (coconut oil, CO) can regulate the gut microbiota, insulin sensitivity, inflammation, mitochondrial function in wild type and PPARα KO mice. The group that received SO showed the highest microbial diversity, increase in Akkermansia muciniphila, high insulin sensitivity and low grade inflammation, The OO group showed similar insulin sensitivity and insulin signaling than SO, increase in Bifidobacterium, increase in fatty acid oxidation and low grade inflammation. The CO consumption led to the lowest bacterial diversity, a 9-fold increase in the LPS concentration leading to metabolic endotoxemia, hepatic steatosis, increased lipogenesis, highest LDL-cholesterol concentration and the lowest respiratory capacity and fatty acid oxidation in the mitochondria. The absence of PPARα decreased alpha diversity and increased LPS concentration particularly in the CO group, and increased insulin sensitivity in the groups fed SO or OO. These results indicate that consuming mono or polyunsaturated fatty acids produced health benefits at the recommended intake but a high concentration of oils (three times the recommended oil intake in rodents) significantly decreased the microbial alpha-diversity independent of the type of oil.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Animals
Bacteria/classification/genetics
Cells, Cultured
Coconut Oil/*pharmacology
Computational Biology
DNA, Bacterial/genetics
Feces/chemistry
Gastrointestinal Microbiome/*drug effects
Gene Expression Regulation/drug effects
Genotype
Glucose Intolerance
Hepatocytes/drug effects
Insulin Resistance
Male
Mice
Mice, Inbred C57BL
Mice, Knockout
NF-kappa B/genetics/metabolism
Non-alcoholic Fatty Liver Disease/*prevention & control
Olive Oil/*pharmacology
Oxygen Consumption/drug effects
PPAR alpha/genetics/*metabolism
RNA, Bacterial/genetics
RNA, Ribosomal, 16S
Random Allocation
Soybean Oil/*pharmacology
Toll-Like Receptor 4/genetics/metabolism
RevDate: 2024-04-01
Unilateral Orbital Metastasis as the Unique Symptom in the Onset of Breast Cancer in a Postmenopausal Woman: Case Report and Review of the Literature.
Diagnostics (Basel, Switzerland), 11(4):.
The orbit represents an unusual metastases site for patients diagnosed with cancer, however, breast cancer is the main cause of metastases at this level. These orbital metastases were discovered in patients with a history of breast cancer as unique or synchronous lesions. We present a rare case of a unique retroocular metastasis as the first initial symptom of a tubulo-lobular mammary carcinoma in a postmenopausal woman. A 57-year-old patient complains of diplopia, diminishing visual acuity, orbital tenderness, slight exophthalmia and ptosis of the left eyelid, with insidious onset. Clinical examination and subsequent investigations revealed a left breast cancer cT2 cN1 pM1 stage IV. Breast conserving surgery was performed on the left breast. Pathological examination with immunohistochemistry staining established the complete diagnostic: pT2pN3aM1 Stage IV breast cancer, luminal B subtype. After two years from the initial breast cancer diagnosis, the patient was diagnosed by the psychiatrist with a depressive disorder and was treated accordingly. Orbital metastases are usually discovered in known breast cancer patients and they are found in the context of a multi-system end-stage disease. Most reports cite that up to 25% of the total orbital metastases cases are discovered before the diagnosis of the primary tumor, as our case did. MRI is the gold standard for evaluating orbital tumors. The ILC histological subtype metastasizes in the orbitals more frequently than invasive ductal carcinoma. The prognosis of patients with orbital metastases is poor. The median survival after diagnosis of orbital metastases from a breast cancer primary is ranging from 22 to 31 months. Overall survival of our patient was 56 months, longer than the median survival reported in literature. Orbital metastases must be taken into account when patients accuse ophthalmologic symptoms even in the absence of a personal history of cancer. Objective examination of every patient that incriminates these types of symptoms is essential, and breast palpation must be made in every clinical setting. Orbital biopsy is necessary for the confirmation of the diagnosis and for an adequate treatment. Although recommendations for management of orbital metastases are controversial, it appears that multidisciplinary treatment of both metastases and primary cancer improves overall survival.
Additional Links: PMID-33921735
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33921735,
year = {2021},
author = {Oprean, CM and Badau, LM and Segarceanu, NA and Ciocoiu, AD and Rivis, IA and Vornicu, VN and Hoinoiu, T and Grujic, D and Bredicean, C and Dema, A},
title = {Unilateral Orbital Metastasis as the Unique Symptom in the Onset of Breast Cancer in a Postmenopausal Woman: Case Report and Review of the Literature.},
journal = {Diagnostics (Basel, Switzerland)},
volume = {11},
number = {4},
pages = {},
pmid = {33921735},
issn = {2075-4418},
abstract = {The orbit represents an unusual metastases site for patients diagnosed with cancer, however, breast cancer is the main cause of metastases at this level. These orbital metastases were discovered in patients with a history of breast cancer as unique or synchronous lesions. We present a rare case of a unique retroocular metastasis as the first initial symptom of a tubulo-lobular mammary carcinoma in a postmenopausal woman. A 57-year-old patient complains of diplopia, diminishing visual acuity, orbital tenderness, slight exophthalmia and ptosis of the left eyelid, with insidious onset. Clinical examination and subsequent investigations revealed a left breast cancer cT2 cN1 pM1 stage IV. Breast conserving surgery was performed on the left breast. Pathological examination with immunohistochemistry staining established the complete diagnostic: pT2pN3aM1 Stage IV breast cancer, luminal B subtype. After two years from the initial breast cancer diagnosis, the patient was diagnosed by the psychiatrist with a depressive disorder and was treated accordingly. Orbital metastases are usually discovered in known breast cancer patients and they are found in the context of a multi-system end-stage disease. Most reports cite that up to 25% of the total orbital metastases cases are discovered before the diagnosis of the primary tumor, as our case did. MRI is the gold standard for evaluating orbital tumors. The ILC histological subtype metastasizes in the orbitals more frequently than invasive ductal carcinoma. The prognosis of patients with orbital metastases is poor. The median survival after diagnosis of orbital metastases from a breast cancer primary is ranging from 22 to 31 months. Overall survival of our patient was 56 months, longer than the median survival reported in literature. Orbital metastases must be taken into account when patients accuse ophthalmologic symptoms even in the absence of a personal history of cancer. Objective examination of every patient that incriminates these types of symptoms is essential, and breast palpation must be made in every clinical setting. Orbital biopsy is necessary for the confirmation of the diagnosis and for an adequate treatment. Although recommendations for management of orbital metastases are controversial, it appears that multidisciplinary treatment of both metastases and primary cancer improves overall survival.},
}
RevDate: 2026-01-27
CmpDate: 2021-05-03
Clinical and X-ray characteristics for expressions of different receptors in patients with breast cancer.
Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences, 46(3):263-271.
OBJECTIVES: Clarifying the expression of breast cancer receptor is the key to clinical treatment for breast cancer. This study aims to explore the correlation between X-ray and clinical characteristics of 4 molecular subtypes and their receptor types of breast cancer.
METHODS: A total of 439 breast cancer patients who confirmed by pathology and performed X-ray examination were enrolled. The X-ray and clinical characteristics of 4 molecular subtypes and the expression of their receptors were analyzed.
RESULTS: Luminal A type showed the highest proportion of spiculate masses, and the lowest calcification score, showing significant difference with other 3 subtypes (all P<0.001). The age in the human epidermal growth factor 2 (HER2) overexpression type group was older, the proportions of menopause, the calcification score, and the calcification score with 9-12 were higher, the sizes of the tumor were greater in the HER2 overexpression type group than those in the other 3 molecular subtype groups (age P<0.05, the rest P<0.01). The proportions of regular shape, edge indistinct, and high-grade invasive ductal carcinoma in the triple-negative type group were higher than those in the other 3 molecular subtype groups (all P<0.001). The proportions of non-menopausal patients and spiculate tumors in the estrogen receptor (ER) positive and/or progesterone receptor (PR) positive groups were higher than those in both ER and PR negative group (P<0.001 and P=0.001, respectively). The proportions of calcification fraction and high-grade invasive ductal carcinoma were higher, tumor sizes were greater in the HER2 positive group, Ki-67≥20% group than those in the HER2 negative group, Ki-67<20% group, respectively (P<0.001 or P<0.05, respectively).
CONCLUSIONS: Four molecular subtypes of breast cancer and their receptor expressions are correlated with X-ray and clinical characteristics, which can provide a basis for clinical diagnosis and treatment.
Additional Links: PMID-33927073
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33927073,
year = {2021},
author = {Huang, X and Cai, S and Wu, P and Huang, S and Yao, M},
title = {Clinical and X-ray characteristics for expressions of different receptors in patients with breast cancer.},
journal = {Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences},
volume = {46},
number = {3},
pages = {263-271},
pmid = {33927073},
issn = {1672-7347},
mesh = {Biomarkers, Tumor ; *Breast Neoplasms/diagnostic imaging/genetics ; Female ; Humans ; Erb-b2 Receptor Tyrosine Kinases/genetics ; Receptors, Estrogen ; Receptors, Progesterone ; X-Rays ; },
abstract = {OBJECTIVES: Clarifying the expression of breast cancer receptor is the key to clinical treatment for breast cancer. This study aims to explore the correlation between X-ray and clinical characteristics of 4 molecular subtypes and their receptor types of breast cancer.
METHODS: A total of 439 breast cancer patients who confirmed by pathology and performed X-ray examination were enrolled. The X-ray and clinical characteristics of 4 molecular subtypes and the expression of their receptors were analyzed.
RESULTS: Luminal A type showed the highest proportion of spiculate masses, and the lowest calcification score, showing significant difference with other 3 subtypes (all P<0.001). The age in the human epidermal growth factor 2 (HER2) overexpression type group was older, the proportions of menopause, the calcification score, and the calcification score with 9-12 were higher, the sizes of the tumor were greater in the HER2 overexpression type group than those in the other 3 molecular subtype groups (age P<0.05, the rest P<0.01). The proportions of regular shape, edge indistinct, and high-grade invasive ductal carcinoma in the triple-negative type group were higher than those in the other 3 molecular subtype groups (all P<0.001). The proportions of non-menopausal patients and spiculate tumors in the estrogen receptor (ER) positive and/or progesterone receptor (PR) positive groups were higher than those in both ER and PR negative group (P<0.001 and P=0.001, respectively). The proportions of calcification fraction and high-grade invasive ductal carcinoma were higher, tumor sizes were greater in the HER2 positive group, Ki-67≥20% group than those in the HER2 negative group, Ki-67<20% group, respectively (P<0.001 or P<0.05, respectively).
CONCLUSIONS: Four molecular subtypes of breast cancer and their receptor expressions are correlated with X-ray and clinical characteristics, which can provide a basis for clinical diagnosis and treatment.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Biomarkers, Tumor
*Breast Neoplasms/diagnostic imaging/genetics
Female
Humans
Erb-b2 Receptor Tyrosine Kinases/genetics
Receptors, Estrogen
Receptors, Progesterone
X-Rays
RevDate: 2022-12-21
CmpDate: 2021-05-21
Overwhelmed by the news: A longitudinal study of prior trauma, posttraumatic stress disorder trajectories, and news watching during the COVID-19 pandemic.
Social science & medicine (1982), 278:113956.
RATIONALE: It has been recognized that exposure to mass trauma tends to increase the time spent watching television (TV) news. Yet, research on the effects of this tendency on individuals' well-being yielded inconclusive findings.
OBJECTIVE: The aim of this longitudinal study is to examine the effects of prior trauma and posttraumatic stress disorder (PTSD) on changes in the amount of TV news watching and its effect on subsequent PTSD. More specifically, we examined the interrelations of prior exposure to war captivity, long-term PTSD trajectories, and amount of change TV news watching with PTSD severity during the COVID-19 pandemic, among aging Israeli combat veterans.
METHODS: One-hundred-and-twenty Israeli ex-prisoners of war (ex-POWs) from 1973 Yom Kippur War and 65 matched controls (combat veterans from the same war) were followed up at five points of time: 1991 (T1), 2003 (T2), 2008 (T3), 2015 (T4), and in April-May 2020 (T5), during the outbreak of the COVID-19 pandemic.
RESULTS: Ex-POWs had higher odds of COVID-19 related increase in TV news watching, which, in turn, contributed to PTSD severity at T5. In addition, delayed PTSD trajectory was associated with COVID-19 related increase in TV news watching, which, in turn, contributed to more severe PTSD at T5.
CONCLUSIONS: These findings highlight the negative implications of TV news watching during a mass trauma for traumatized individuals. More specifically, they demonstrate its potential pathogenic role in exacerbating prior PTSD among trauma survivors.
Additional Links: PMID-33930678
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33930678,
year = {2021},
author = {Solomon, Z and Ginzburg, K and Ohry, A and Mikulincer, M},
title = {Overwhelmed by the news: A longitudinal study of prior trauma, posttraumatic stress disorder trajectories, and news watching during the COVID-19 pandemic.},
journal = {Social science & medicine (1982)},
volume = {278},
number = {},
pages = {113956},
pmid = {33930678},
issn = {1873-5347},
mesh = {*COVID-19 ; Humans ; Israel/epidemiology ; Longitudinal Studies ; Pandemics ; *Prisoners of War ; SARS-CoV-2 ; *Stress Disorders, Post-Traumatic/epidemiology/etiology ; *Veterans ; },
abstract = {RATIONALE: It has been recognized that exposure to mass trauma tends to increase the time spent watching television (TV) news. Yet, research on the effects of this tendency on individuals' well-being yielded inconclusive findings.
OBJECTIVE: The aim of this longitudinal study is to examine the effects of prior trauma and posttraumatic stress disorder (PTSD) on changes in the amount of TV news watching and its effect on subsequent PTSD. More specifically, we examined the interrelations of prior exposure to war captivity, long-term PTSD trajectories, and amount of change TV news watching with PTSD severity during the COVID-19 pandemic, among aging Israeli combat veterans.
METHODS: One-hundred-and-twenty Israeli ex-prisoners of war (ex-POWs) from 1973 Yom Kippur War and 65 matched controls (combat veterans from the same war) were followed up at five points of time: 1991 (T1), 2003 (T2), 2008 (T3), 2015 (T4), and in April-May 2020 (T5), during the outbreak of the COVID-19 pandemic.
RESULTS: Ex-POWs had higher odds of COVID-19 related increase in TV news watching, which, in turn, contributed to PTSD severity at T5. In addition, delayed PTSD trajectory was associated with COVID-19 related increase in TV news watching, which, in turn, contributed to more severe PTSD at T5.
CONCLUSIONS: These findings highlight the negative implications of TV news watching during a mass trauma for traumatized individuals. More specifically, they demonstrate its potential pathogenic role in exacerbating prior PTSD among trauma survivors.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*COVID-19
Humans
Israel/epidemiology
Longitudinal Studies
Pandemics
*Prisoners of War
SARS-CoV-2
*Stress Disorders, Post-Traumatic/epidemiology/etiology
*Veterans
RevDate: 2023-12-13
CmpDate: 2022-03-25
Nectin-4 promotes lymphangiogenesis and lymphatic metastasis in breast cancer by regulating CXCR4-LYVE-1 axis.
Vascular pharmacology, 140:106865.
Tumor-induced lymphangiogenesis promotes tumor progression by generating new lymphatic vessels that helps in tumor dissemination to regional lymph nodes and distant sites. Recently, the role of Nectin-4 in cancer metastasis and angiogenesis has been studied, but its role in lymphangiogenesis is unknown. Here, we systematically delineated the role of Nectin-4 in lymphangiogenesis and its regulation in invasive duct carcinoma (IDC). Nectin-4 expression positively correlated with occurrence risk factors associated with breast cancer (alcohol, smoke, lifestyle habit, etc), CXCR4 expression, and LYVE-1-lymphatic vessel density (LVD). LVD was significantly higher in axillary lymph node (ALN) than primary tumor. Depleting Nectin-4, VEGF-C or both attenuated the important lymphangiogenic marker LYVE-1 expression, tube formation, and migration of ALN derived primary cells. Nectin-4 stimulated the expressions of CXCR4 and CXCL12 under hypoxic conditions in ALN derived primary cells. Further, Nectin-4 augmented expressions of lymphatic metastatic markers (e.g. eNOS, TGF-β, CD-105) and MMPs. Induced expressions of Nectin-4 along with other representative metastatic markers were noted in lymph and blood circulating tumor cells (LCTCs and BCTCs) of local and distant metastatic samples. Thus, Nectin-4 displayed a predominant role in promoting tumor-induced lymphangiogenesis and lymphatic metastasis by modulating CXCR4/CXCL12-LYVE-1- axis.
Additional Links: PMID-33945869
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33945869,
year = {2021},
author = {Sethy, C and Goutam, K and Das, B and Dash, SR and Kundu, CN},
title = {Nectin-4 promotes lymphangiogenesis and lymphatic metastasis in breast cancer by regulating CXCR4-LYVE-1 axis.},
journal = {Vascular pharmacology},
volume = {140},
number = {},
pages = {106865},
doi = {10.1016/j.vph.2021.106865},
pmid = {33945869},
issn = {1879-3649},
mesh = {*Breast Neoplasms/genetics/metabolism/pathology ; *Cell Adhesion Molecules/metabolism ; Female ; Humans ; Lymphangiogenesis/physiology ; Lymphatic Metastasis/pathology ; *Lymphatic Vessels/metabolism ; *Nectins/metabolism ; *Receptors, CXCR4/metabolism ; *Vesicular Transport Proteins/metabolism ; },
abstract = {Tumor-induced lymphangiogenesis promotes tumor progression by generating new lymphatic vessels that helps in tumor dissemination to regional lymph nodes and distant sites. Recently, the role of Nectin-4 in cancer metastasis and angiogenesis has been studied, but its role in lymphangiogenesis is unknown. Here, we systematically delineated the role of Nectin-4 in lymphangiogenesis and its regulation in invasive duct carcinoma (IDC). Nectin-4 expression positively correlated with occurrence risk factors associated with breast cancer (alcohol, smoke, lifestyle habit, etc), CXCR4 expression, and LYVE-1-lymphatic vessel density (LVD). LVD was significantly higher in axillary lymph node (ALN) than primary tumor. Depleting Nectin-4, VEGF-C or both attenuated the important lymphangiogenic marker LYVE-1 expression, tube formation, and migration of ALN derived primary cells. Nectin-4 stimulated the expressions of CXCR4 and CXCL12 under hypoxic conditions in ALN derived primary cells. Further, Nectin-4 augmented expressions of lymphatic metastatic markers (e.g. eNOS, TGF-β, CD-105) and MMPs. Induced expressions of Nectin-4 along with other representative metastatic markers were noted in lymph and blood circulating tumor cells (LCTCs and BCTCs) of local and distant metastatic samples. Thus, Nectin-4 displayed a predominant role in promoting tumor-induced lymphangiogenesis and lymphatic metastasis by modulating CXCR4/CXCL12-LYVE-1- axis.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Breast Neoplasms/genetics/metabolism/pathology
*Cell Adhesion Molecules/metabolism
Female
Humans
Lymphangiogenesis/physiology
Lymphatic Metastasis/pathology
*Lymphatic Vessels/metabolism
*Nectins/metabolism
*Receptors, CXCR4/metabolism
*Vesicular Transport Proteins/metabolism
RevDate: 2023-11-07
CmpDate: 2022-02-10
Mediator of DNA Damage Checkpoint 1 (MDC1) Is a Novel Estrogen Receptor Coregulator in Invasive Lobular Carcinoma of the Breast.
Molecular cancer research : MCR, 19(8):1270-1282.
Invasive lobular carcinoma (ILC) is the most common special histologic subtype of breast cancer, and nearly all ILC tumors express estrogen receptor alpha (ER). However, clinical and laboratory data suggest ILC are strongly estrogen-driven but not equally antiestrogen-sensitive. We hypothesized ILC-specific ER coregulators mediate ER functions and antiestrogen resistance in ILC, and profiled ER-associated proteins by mass spectrometry. Three ER[+] ILC cell lines (MDA MB 134VI, SUM44PE, and BCK4) were compared with ER[+] invasive ductal carcinoma (IDC) line data, and we examined whether siRNA of identified proteins suppressed ER-driven proliferation in ILC cells. This identified mediator of DNA damage checkpoint 1 (MDC1), a tumor suppressor in DNA damage response (DDR), as a novel ER coregulator in ILC. We confirmed ER:MDC1 interaction was specific to ILC versus IDC cells, and found MDC1 knockdown suppressed ILC cell proliferation and tamoxifen resistance. Using RNA-sequencing, we found in ILC cells MDC1 knockdown broadly dysregulates the ER transcriptome, with ER:MDC1 target genes enriched for promoter hormone response elements. Importantly, our data are inconsistent with MDC1 tumor suppressor functions in DDR, but suggest a novel oncogenic role for MDC1 as an ER coregulator. Supporting this, in breast tumor tissue microarrays, MDC1 protein was frequently low or absent in IDC, but MDC1 loss was rare in ER[+] ILC. ER:MDC1 interaction and MDC1 coregulator functions may underlie ER function in ILC and serve as targets to overcome antiestrogen resistance in ILC. IMPLICATIONS: MDC1 has novel ER coregulator activity in ILC, which may underlie ILC-specific ER functions, estrogen response, and antiestrogen resistance.
Additional Links: PMID-33947745
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33947745,
year = {2021},
author = {Sottnik, JL and Bordeaux, EK and Mehrotra, S and Ferrara, SE and Goodspeed, AE and Costello, JC and Sikora, MJ},
title = {Mediator of DNA Damage Checkpoint 1 (MDC1) Is a Novel Estrogen Receptor Coregulator in Invasive Lobular Carcinoma of the Breast.},
journal = {Molecular cancer research : MCR},
volume = {19},
number = {8},
pages = {1270-1282},
pmid = {33947745},
issn = {1557-3125},
support = {P30 CA046934/CA/NCI NIH HHS/United States ; R00 CA193734/CA/NCI NIH HHS/United States ; T32 GM007635/GM/NIGMS NIH HHS/United States ; },
mesh = {Adaptor Proteins, Signal Transducing/*genetics ; Breast/pathology ; Breast Neoplasms/drug therapy/*genetics/pathology ; Carcinoma, Lobular/drug therapy/*genetics/pathology ; Cell Cycle Proteins/*genetics ; Cell Line, Tumor ; Cell Proliferation/drug effects/genetics ; Female ; Humans ; MCF-7 Cells ; Promoter Regions, Genetic/drug effects/genetics ; Receptors, Estrogen/*genetics ; Signal Transduction/genetics ; Tamoxifen/therapeutic use ; Transcriptome/drug effects/genetics ; },
abstract = {Invasive lobular carcinoma (ILC) is the most common special histologic subtype of breast cancer, and nearly all ILC tumors express estrogen receptor alpha (ER). However, clinical and laboratory data suggest ILC are strongly estrogen-driven but not equally antiestrogen-sensitive. We hypothesized ILC-specific ER coregulators mediate ER functions and antiestrogen resistance in ILC, and profiled ER-associated proteins by mass spectrometry. Three ER[+] ILC cell lines (MDA MB 134VI, SUM44PE, and BCK4) were compared with ER[+] invasive ductal carcinoma (IDC) line data, and we examined whether siRNA of identified proteins suppressed ER-driven proliferation in ILC cells. This identified mediator of DNA damage checkpoint 1 (MDC1), a tumor suppressor in DNA damage response (DDR), as a novel ER coregulator in ILC. We confirmed ER:MDC1 interaction was specific to ILC versus IDC cells, and found MDC1 knockdown suppressed ILC cell proliferation and tamoxifen resistance. Using RNA-sequencing, we found in ILC cells MDC1 knockdown broadly dysregulates the ER transcriptome, with ER:MDC1 target genes enriched for promoter hormone response elements. Importantly, our data are inconsistent with MDC1 tumor suppressor functions in DDR, but suggest a novel oncogenic role for MDC1 as an ER coregulator. Supporting this, in breast tumor tissue microarrays, MDC1 protein was frequently low or absent in IDC, but MDC1 loss was rare in ER[+] ILC. ER:MDC1 interaction and MDC1 coregulator functions may underlie ER function in ILC and serve as targets to overcome antiestrogen resistance in ILC. IMPLICATIONS: MDC1 has novel ER coregulator activity in ILC, which may underlie ILC-specific ER functions, estrogen response, and antiestrogen resistance.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adaptor Proteins, Signal Transducing/*genetics
Breast/pathology
Breast Neoplasms/drug therapy/*genetics/pathology
Carcinoma, Lobular/drug therapy/*genetics/pathology
Cell Cycle Proteins/*genetics
Cell Line, Tumor
Cell Proliferation/drug effects/genetics
Female
Humans
MCF-7 Cells
Promoter Regions, Genetic/drug effects/genetics
Receptors, Estrogen/*genetics
Signal Transduction/genetics
Tamoxifen/therapeutic use
Transcriptome/drug effects/genetics
RevDate: 2022-07-16
CmpDate: 2022-02-24
The RNA structurome in the asexual blood stages of malaria pathogen plasmodium falciparum.
RNA biology, 18(12):2480-2497.
Plasmodium falciparum is a deadly human pathogen responsible for the devastating disease called malaria. In this study, we measured the differential accumulation of RNA secondary structures in coding and non-coding transcripts from the asexual developmental cycle in P. falciparum in human red blood cells. Our comprehensive analysis that combined high-throughput nuclease mapping of RNA structures by duplex RNA-seq, SHAPE-directed RNA structure validation, immunoaffinity purification and characterization of antisense RNAs collectively measured differentially base-paired RNA regions throughout the parasite's asexual RBC cycle. Our mapping data not only aligned to a diverse pool of RNAs with known structures but also enabled us to identify new structural RNA regions in the malaria genome. On average, approximately 71% of the genes with secondary structures are found to be protein coding mRNAs. The mapping pattern of these base-paired RNAs corresponded to all regions of mRNAs, including the 5' UTR, CDS and 3' UTR as well as the start and stop codons. Histone family genes which are known to form secondary structures in their mRNAs and transcripts from genes which are important for transcriptional and post-transcriptional control, such as the unique plant-like transcription factor family, ApiAP2, DNA-/RNA-binding protein, Alba3 and proteins important for RBC invasion and malaria cytoadherence also showed strong accumulation of duplex RNA reads in various asexual stages in P. falciparum. Intriguingly, our study determined stage-specific, dynamic relationships between mRNA structural contents and translation efficiency in P. falciparum asexual blood stages, suggesting an essential role of RNA structural changes in malaria gene expression programs. Abbreviations: CDS: Coding Sequence; DNA: Deoxyribonucleic Acid; dsRNA: double-stranded RNA; IDC: Intra-erythrocytic Developmental Cycle (IDC); m6A: N6-methyladenosine; mRNA: Messenger RNA; ncRNA: Non-coding RNA; RBC: Red Blood cells; RBP: RNA-Binding Protein; REC: Relative Expression Counts; RNA-seq: RNA-sequencing; RNA: Ribonucleic Acid; RNP: Ribonucleoprotein; RPKM: Reads Per Kilobase of transcript Per Million; rRNA: Ribosomal RNA 16. RUFs: RNAs of Unknown Function; SHAPE: Selective 2'-hydroxyl acylation analysed by primer extension; snoRNA: Small Nucleolar RNA; snRNA: Small Nuclear RNA; SRP-RNA: Signal Recognition Particle RNA; ssRNA: (Single-stranded RNA); TE: Translation Efficiency; tRNA: transfer RNA; UTR: Untranslated Region.
Additional Links: PMID-33960872
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33960872,
year = {2021},
author = {Alvarez, DR and Ospina, A and Barwell, T and Zheng, B and Dey, A and Li, C and Basu, S and Shi, X and Kadri, S and Chakrabarti, K},
title = {The RNA structurome in the asexual blood stages of malaria pathogen plasmodium falciparum.},
journal = {RNA biology},
volume = {18},
number = {12},
pages = {2480-2497},
pmid = {33960872},
issn = {1555-8584},
mesh = {Erythrocytes/*metabolism ; *Gene Expression Regulation ; Humans ; *Life Cycle Stages ; Malaria, Falciparum/*parasitology ; *Nucleic Acid Conformation ; Plasmodium falciparum/*genetics/growth & development/pathogenicity ; Protozoan Proteins/genetics/metabolism ; RNA, Protozoan/*chemistry ; Transcriptome ; },
abstract = {Plasmodium falciparum is a deadly human pathogen responsible for the devastating disease called malaria. In this study, we measured the differential accumulation of RNA secondary structures in coding and non-coding transcripts from the asexual developmental cycle in P. falciparum in human red blood cells. Our comprehensive analysis that combined high-throughput nuclease mapping of RNA structures by duplex RNA-seq, SHAPE-directed RNA structure validation, immunoaffinity purification and characterization of antisense RNAs collectively measured differentially base-paired RNA regions throughout the parasite's asexual RBC cycle. Our mapping data not only aligned to a diverse pool of RNAs with known structures but also enabled us to identify new structural RNA regions in the malaria genome. On average, approximately 71% of the genes with secondary structures are found to be protein coding mRNAs. The mapping pattern of these base-paired RNAs corresponded to all regions of mRNAs, including the 5' UTR, CDS and 3' UTR as well as the start and stop codons. Histone family genes which are known to form secondary structures in their mRNAs and transcripts from genes which are important for transcriptional and post-transcriptional control, such as the unique plant-like transcription factor family, ApiAP2, DNA-/RNA-binding protein, Alba3 and proteins important for RBC invasion and malaria cytoadherence also showed strong accumulation of duplex RNA reads in various asexual stages in P. falciparum. Intriguingly, our study determined stage-specific, dynamic relationships between mRNA structural contents and translation efficiency in P. falciparum asexual blood stages, suggesting an essential role of RNA structural changes in malaria gene expression programs. Abbreviations: CDS: Coding Sequence; DNA: Deoxyribonucleic Acid; dsRNA: double-stranded RNA; IDC: Intra-erythrocytic Developmental Cycle (IDC); m6A: N6-methyladenosine; mRNA: Messenger RNA; ncRNA: Non-coding RNA; RBC: Red Blood cells; RBP: RNA-Binding Protein; REC: Relative Expression Counts; RNA-seq: RNA-sequencing; RNA: Ribonucleic Acid; RNP: Ribonucleoprotein; RPKM: Reads Per Kilobase of transcript Per Million; rRNA: Ribosomal RNA 16. RUFs: RNAs of Unknown Function; SHAPE: Selective 2'-hydroxyl acylation analysed by primer extension; snoRNA: Small Nucleolar RNA; snRNA: Small Nuclear RNA; SRP-RNA: Signal Recognition Particle RNA; ssRNA: (Single-stranded RNA); TE: Translation Efficiency; tRNA: transfer RNA; UTR: Untranslated Region.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Erythrocytes/*metabolism
*Gene Expression Regulation
Humans
*Life Cycle Stages
Malaria, Falciparum/*parasitology
*Nucleic Acid Conformation
Plasmodium falciparum/*genetics/growth & development/pathogenicity
Protozoan Proteins/genetics/metabolism
RNA, Protozoan/*chemistry
Transcriptome
RevDate: 2022-03-09
CmpDate: 2022-03-09
Methylglyoxal Drives a Distinct, Nonclassical Macrophage Activation Status.
Thrombosis and haemostasis, 121(11):1464-1475.
Metabolic complications in diabetic patients are driven by a combination of increased levels of nutrients and the presence of a proinflammatory environment. Methylglyoxal (MG) is a toxic byproduct of catabolism and has been strongly associated with the development of such complications. Macrophages are key mediators of inflammatory processes and their contribution to the development of metabolic complications has been demonstrated. However, a direct link between reactive metabolites and macrophage activation has not been demonstrated yet. Here, we show that acute MG treatment activated components of the p38 MAPK pathway and enhanced glycolysis in primary murine macrophages. MG induced a distinct gene expression profile sharing similarities with classically activated proinflammatory macrophages as well as metabolically activated macrophages usually found in obese patients. Transcriptomic analysis revealed a set of 15 surface markers specifically upregulated in MG-treated macrophages, thereby establishing a new set of targets for diagnostic or therapeutic purposes under high MG conditions, including diabetes. Overall, our study defines a new polarization state of macrophages that may specifically link aberrant macrophage activation to reactive metabolites in diabetes.
Additional Links: PMID-33966256
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33966256,
year = {2021},
author = {Tsokanos, FF and Muley, C and Khani, S and Hass, D and Fleming, T and Wolff, G and Bartelt, A and Nawroth, P and Herzig, S},
title = {Methylglyoxal Drives a Distinct, Nonclassical Macrophage Activation Status.},
journal = {Thrombosis and haemostasis},
volume = {121},
number = {11},
pages = {1464-1475},
doi = {10.1055/s-0041-1726346},
pmid = {33966256},
issn = {2567-689X},
support = {Deutsche Forschungsgemeinschaft//SFB1118/ ; },
mesh = {Animals ; Cells, Cultured ; Gene Expression Profiling ; Glycolysis/*drug effects ; Macrophage Activation/*drug effects ; Macrophages/*drug effects/immunology/metabolism ; Mice ; Phenotype ; Phosphorylation ; Pyruvaldehyde/*toxicity ; Signal Transduction ; Transcriptome ; p38 Mitogen-Activated Protein Kinases/metabolism ; },
abstract = {Metabolic complications in diabetic patients are driven by a combination of increased levels of nutrients and the presence of a proinflammatory environment. Methylglyoxal (MG) is a toxic byproduct of catabolism and has been strongly associated with the development of such complications. Macrophages are key mediators of inflammatory processes and their contribution to the development of metabolic complications has been demonstrated. However, a direct link between reactive metabolites and macrophage activation has not been demonstrated yet. Here, we show that acute MG treatment activated components of the p38 MAPK pathway and enhanced glycolysis in primary murine macrophages. MG induced a distinct gene expression profile sharing similarities with classically activated proinflammatory macrophages as well as metabolically activated macrophages usually found in obese patients. Transcriptomic analysis revealed a set of 15 surface markers specifically upregulated in MG-treated macrophages, thereby establishing a new set of targets for diagnostic or therapeutic purposes under high MG conditions, including diabetes. Overall, our study defines a new polarization state of macrophages that may specifically link aberrant macrophage activation to reactive metabolites in diabetes.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Animals
Cells, Cultured
Gene Expression Profiling
Glycolysis/*drug effects
Macrophage Activation/*drug effects
Macrophages/*drug effects/immunology/metabolism
Mice
Phenotype
Phosphorylation
Pyruvaldehyde/*toxicity
Signal Transduction
Transcriptome
p38 Mitogen-Activated Protein Kinases/metabolism
RevDate: 2022-03-22
CmpDate: 2022-03-22
Circulating endotoxin and inflammation: associations with fitness, physical activity and the effect of a 6-month programme of cycling exercise during haemodialysis.
Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 37(2):366-374.
BACKGROUND: Intradialytic cycling (IDC) may provide cardiovascular benefits to individuals receiving haemodialysis, but the exact mechanism behind these improvements remains unclear. The primary aim of this study was to investigate the effect of a 6-month programme of IDC on circulating endotoxin (secondary analysis from the CYCLE-HD trial). Secondary aims were to investigate changes in circulating cytokines [interleukin-6 (IL-6), IL-10, tumour necrosis factor-α, C-reactive protein (CRP) and the IL-6:IL-10 ratio] and their associations with physical activity, fitness and cardiovascular outcomes.
METHODS: Participants were randomized to either a 6-month programme of IDC (thrice weekly, moderate intensity cycling at a rating of perceived exertion of 12-14) in addition to usual care (n = 46) or usual care only (control group; n = 46). Outcome measures were obtained at baseline and then again at 6 months.
RESULTS: There was no significant (P = 0.137) difference in circulating endotoxin between groups at 6 months (IDC group: 0.34 ± 0.08 EU/mL; control group: 0.37 ± 0.07 EU/mL). There were no significant between-group differences in any circulating cytokine following the 6-month programme of IDC. Higher levels of physical activity and fitness were associated with lower levels of endotoxin, IL-6, CRP and IL-6:IL-10 ratio.
CONCLUSIONS: Our data show no change in circulating endotoxin or cytokines following a 6-month programme of IDC. However, higher levels of physical activity outside of haemodialysis were associated with lower levels of inflammation.
Additional Links: PMID-33983449
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid33983449,
year = {2022},
author = {March, DS and Lai, KB and Neal, T and Graham-Brown, MPM and Highton, PJ and Churchward, DR and Young, HML and Dungey, M and Stensel, DJ and Smith, AC and Bishop, NC and Szeto, CC and Burton, JO},
title = {Circulating endotoxin and inflammation: associations with fitness, physical activity and the effect of a 6-month programme of cycling exercise during haemodialysis.},
journal = {Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association},
volume = {37},
number = {2},
pages = {366-374},
doi = {10.1093/ndt/gfab178},
pmid = {33983449},
issn = {1460-2385},
mesh = {*Endotoxins ; Exercise ; Humans ; Inflammation/etiology ; Physical Fitness ; *Renal Dialysis/adverse effects ; },
abstract = {BACKGROUND: Intradialytic cycling (IDC) may provide cardiovascular benefits to individuals receiving haemodialysis, but the exact mechanism behind these improvements remains unclear. The primary aim of this study was to investigate the effect of a 6-month programme of IDC on circulating endotoxin (secondary analysis from the CYCLE-HD trial). Secondary aims were to investigate changes in circulating cytokines [interleukin-6 (IL-6), IL-10, tumour necrosis factor-α, C-reactive protein (CRP) and the IL-6:IL-10 ratio] and their associations with physical activity, fitness and cardiovascular outcomes.
METHODS: Participants were randomized to either a 6-month programme of IDC (thrice weekly, moderate intensity cycling at a rating of perceived exertion of 12-14) in addition to usual care (n = 46) or usual care only (control group; n = 46). Outcome measures were obtained at baseline and then again at 6 months.
RESULTS: There was no significant (P = 0.137) difference in circulating endotoxin between groups at 6 months (IDC group: 0.34 ± 0.08 EU/mL; control group: 0.37 ± 0.07 EU/mL). There were no significant between-group differences in any circulating cytokine following the 6-month programme of IDC. Higher levels of physical activity and fitness were associated with lower levels of endotoxin, IL-6, CRP and IL-6:IL-10 ratio.
CONCLUSIONS: Our data show no change in circulating endotoxin or cytokines following a 6-month programme of IDC. However, higher levels of physical activity outside of haemodialysis were associated with lower levels of inflammation.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Endotoxins
Exercise
Humans
Inflammation/etiology
Physical Fitness
*Renal Dialysis/adverse effects
RevDate: 2024-08-10
CmpDate: 2021-11-01
Association of antidiabetic medication and statins with survival from ductal and lobular breast carcinoma in women with type 2 diabetes.
Scientific reports, 11(1):10445.
We investigated the survival of female patients with pre-existing type 2 diabetes (T2D) diagnosed with invasive ductal carcinoma (IDC) and invasive lobular carcinoma (ILC) of breast, in relation to the use of metformin, other antidiabetic medication (ADM) and statins. The study cohort consisted of 3,165 women (2,604 with IDC and 561 with ILC). The cumulative mortality from breast cancer (BC) and from other causes was calculated using the Aalen-Johansen estimator. The cause-specific mortality rates were analysed by Cox models, and adjusted hazard ratios (HRs) were estimated for the use of different medications. No evidence of an association of metformin use with BC mortality was observed in either IDC (HR 0.92, 95% confidence interval [CI] 0.64-1.31) or ILC (HR 0.68, 95% CI 0.32-1.46) patients, when compared to other oral ADMs. The mortality from other causes was found to be lower amongst the IDC patients using metformin (HR 0.64, 95% CI 0.45-0.89), but amongst ILC patients the evidence was inconclusive (HR 1.22, 95% CI 0.64-2.32). Statin use was consistently associated with reduced mortality from BC in IDC patients (HR 0.77, 95% CI 0.62-0.96) and ILC patients (HR 0.59, 95% CI 0.37-0.96), and also mortality from other causes in IDC patients (HR 0.81, 95% CI 0.67-0.96) and in ILC patients (HR 0.66, 95% CI 0.43-1.01). We found no sufficient evidence for the possible effects of metformin and statins on the prognosis of BC being different in the two histological subtypes.
Additional Links: PMID-34001921
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34001921,
year = {2021},
author = {Hosio, M and Urpilainen, E and Hautakoski, A and Marttila, M and Arffman, M and Sund, R and Ahtikoski, A and Puistola, U and Läärä, E and Karihtala, P and Jukkola, A},
title = {Association of antidiabetic medication and statins with survival from ductal and lobular breast carcinoma in women with type 2 diabetes.},
journal = {Scientific reports},
volume = {11},
number = {1},
pages = {10445},
pmid = {34001921},
issn = {2045-2322},
mesh = {Adult ; Aged ; Aged, 80 and over ; Breast Neoplasms/complications/*mortality/therapy ; Carcinoma, Ductal, Breast/complications/*mortality/therapy ; Carcinoma, Lobular/complications/*mortality/therapy ; Diabetes Mellitus, Type 2/complications/*drug therapy ; Female ; Follow-Up Studies ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors/*therapeutic use ; Hypoglycemic Agents/*therapeutic use ; Middle Aged ; Prognosis ; Registries/statistics & numerical data ; Survival Analysis ; },
abstract = {We investigated the survival of female patients with pre-existing type 2 diabetes (T2D) diagnosed with invasive ductal carcinoma (IDC) and invasive lobular carcinoma (ILC) of breast, in relation to the use of metformin, other antidiabetic medication (ADM) and statins. The study cohort consisted of 3,165 women (2,604 with IDC and 561 with ILC). The cumulative mortality from breast cancer (BC) and from other causes was calculated using the Aalen-Johansen estimator. The cause-specific mortality rates were analysed by Cox models, and adjusted hazard ratios (HRs) were estimated for the use of different medications. No evidence of an association of metformin use with BC mortality was observed in either IDC (HR 0.92, 95% confidence interval [CI] 0.64-1.31) or ILC (HR 0.68, 95% CI 0.32-1.46) patients, when compared to other oral ADMs. The mortality from other causes was found to be lower amongst the IDC patients using metformin (HR 0.64, 95% CI 0.45-0.89), but amongst ILC patients the evidence was inconclusive (HR 1.22, 95% CI 0.64-2.32). Statin use was consistently associated with reduced mortality from BC in IDC patients (HR 0.77, 95% CI 0.62-0.96) and ILC patients (HR 0.59, 95% CI 0.37-0.96), and also mortality from other causes in IDC patients (HR 0.81, 95% CI 0.67-0.96) and in ILC patients (HR 0.66, 95% CI 0.43-1.01). We found no sufficient evidence for the possible effects of metformin and statins on the prognosis of BC being different in the two histological subtypes.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Aged, 80 and over
Breast Neoplasms/complications/*mortality/therapy
Carcinoma, Ductal, Breast/complications/*mortality/therapy
Carcinoma, Lobular/complications/*mortality/therapy
Diabetes Mellitus, Type 2/complications/*drug therapy
Female
Follow-Up Studies
Humans
Hydroxymethylglutaryl-CoA Reductase Inhibitors/*therapeutic use
Hypoglycemic Agents/*therapeutic use
Middle Aged
Prognosis
Registries/statistics & numerical data
Survival Analysis
RevDate: 2025-08-21
CmpDate: 2025-08-21
Breast cancer incidence and mortality in women in China: temporal trends and projections to 2030.
Cancer biology & medicine, 18(3):900-909.
OBJECTIVE: Breast cancer was the most common cancer and the fifth cause of cancer deaths among women in China in 2015. The evaluation of the long-term incidence and mortality trends and the prediction of the future burden of breast cancer could provide valuable information for developing prevention and control strategies.
METHODS: The burden of breast cancer in China in 2015 was estimated by using qualified data from 368 cancer registries from the National Central Cancer Registry. Incident cases and deaths in 22 cancer registries were used to assess the time trends from 2000 to 2015. A Bayesian age-period-cohort model was used to project the burden of breast cancer to 2030.
RESULTS: Approximately 303,600 new cases of breast cancer (205,100 from urban areas and 98,500 from rural areas) and 70,400 breast cancer deaths (45,100 from urban areas and 24,500 from rural areas) occurred in China in 2015. Urban regions of China had the highest incidence and mortality rates. The most common histological subtype of breast cancer was invasive ductal carcinoma, followed by invasive lobular carcinoma. The age-standardized incidence and mortality rates increased by 3.3% and 1.0% per year during 2000-2015, and were projected to increase by more than 11% until 2030. Changes in risk and demographic factors between 2015 and 2030 in cases are predicted to increase by approximately 13.3% and 22.9%, whereas deaths are predicted to increase by 13.1% and 40.9%, respectively.
CONCLUSIONS: The incidence and mortality of breast cancer continue to increase in China. There are no signs that this trend will stop by 2030, particularly in rural areas. Effective breast cancer prevention strategies are therefore urgently needed in China.
Additional Links: PMID-34002584
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34002584,
year = {2021},
author = {Lei, S and Zheng, R and Zhang, S and Chen, R and Wang, S and Sun, K and Zeng, H and Wei, W and He, J},
title = {Breast cancer incidence and mortality in women in China: temporal trends and projections to 2030.},
journal = {Cancer biology & medicine},
volume = {18},
number = {3},
pages = {900-909},
pmid = {34002584},
issn = {2095-3941},
support = {2018-I2M-3-003//Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences/ ; 2018YFC1315305//National Key Research and Development Program of China/ ; },
abstract = {OBJECTIVE: Breast cancer was the most common cancer and the fifth cause of cancer deaths among women in China in 2015. The evaluation of the long-term incidence and mortality trends and the prediction of the future burden of breast cancer could provide valuable information for developing prevention and control strategies.
METHODS: The burden of breast cancer in China in 2015 was estimated by using qualified data from 368 cancer registries from the National Central Cancer Registry. Incident cases and deaths in 22 cancer registries were used to assess the time trends from 2000 to 2015. A Bayesian age-period-cohort model was used to project the burden of breast cancer to 2030.
RESULTS: Approximately 303,600 new cases of breast cancer (205,100 from urban areas and 98,500 from rural areas) and 70,400 breast cancer deaths (45,100 from urban areas and 24,500 from rural areas) occurred in China in 2015. Urban regions of China had the highest incidence and mortality rates. The most common histological subtype of breast cancer was invasive ductal carcinoma, followed by invasive lobular carcinoma. The age-standardized incidence and mortality rates increased by 3.3% and 1.0% per year during 2000-2015, and were projected to increase by more than 11% until 2030. Changes in risk and demographic factors between 2015 and 2030 in cases are predicted to increase by approximately 13.3% and 22.9%, whereas deaths are predicted to increase by 13.1% and 40.9%, respectively.
CONCLUSIONS: The incidence and mortality of breast cancer continue to increase in China. There are no signs that this trend will stop by 2030, particularly in rural areas. Effective breast cancer prevention strategies are therefore urgently needed in China.},
}
RevDate: 2022-12-07
CmpDate: 2022-01-12
A rare case of high-grade intraductal carcinoma of the upper lip: immunohistochemical and genetic analyses.
Medical molecular morphology, 54(3):281-288.
Although intraductal carcinoma (IDC) of the salivary glands was previously called low-grade cribriform cystadenocarcinoma, it was newly categorized in the 4th version of the World Health Organization classification. We report a case of IDC of the upper lip and examined it immunohistochemically and genetically. The patient was a 48-year-old Japanese female, who noticed a tiny nodule on her left upper lip. Histologically, the tumor cells, which had eosinophilic cytoplasm, exhibited papillary and solid growth patterns, and regions of suspected microinvasion or intraductal spread were also seen at the periphery of the tumor. Small necrotic foci were noted. Immunohistochemically, the tumor cells were diffusely positive for the androgen receptor, CK19, CK5/6, EGFR, and SOX10, whereas they were focally positive for GCDFP-15, S-100 protein, and mammaglobin. The tumor nests were surrounded by alpha-smooth muscle actin-p63-/calponin-/CK14-positive myoepithelial cells. The Ki-67 labeling index was 51.2%. Genetic analysis showed no evidence of the TRIM27-RET or NCOA4-RET fusion gene. We finally diagnosed the tumor as a high-grade mixed intercalated duct/apocrine-type IDC of the upper lip. IDC of the minor salivary glands is exceedingly rare. We discuss diagnostic problems associated with minor salivary gland lesions, and the "basal-like" phenotype of this case.
Additional Links: PMID-34009452
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34009452,
year = {2021},
author = {Kusafuka, K and Ito, I and Hirata, K and Miyamoto, K and Shimizu, T and Satomi, H and Inagaki, H and Suzuki, M},
title = {A rare case of high-grade intraductal carcinoma of the upper lip: immunohistochemical and genetic analyses.},
journal = {Medical molecular morphology},
volume = {54},
number = {3},
pages = {281-288},
pmid = {34009452},
issn = {1860-1499},
mesh = {Asian People ; Biomarkers, Tumor/analysis ; Carcinoma, Intraductal, Noninfiltrating/*diagnosis/metabolism/surgery ; ErbB Receptors/analysis/genetics ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Immunohistochemistry ; Japan ; Keratin-19/analysis/genetics ; Keratin-5/analysis/genetics ; Keratin-6/analysis/genetics ; Lip/surgery ; Lip Neoplasms/*diagnosis/metabolism/surgery ; Middle Aged ; Receptors, Androgen/analysis/genetics ; SOXE Transcription Factors/analysis/genetics ; },
abstract = {Although intraductal carcinoma (IDC) of the salivary glands was previously called low-grade cribriform cystadenocarcinoma, it was newly categorized in the 4th version of the World Health Organization classification. We report a case of IDC of the upper lip and examined it immunohistochemically and genetically. The patient was a 48-year-old Japanese female, who noticed a tiny nodule on her left upper lip. Histologically, the tumor cells, which had eosinophilic cytoplasm, exhibited papillary and solid growth patterns, and regions of suspected microinvasion or intraductal spread were also seen at the periphery of the tumor. Small necrotic foci were noted. Immunohistochemically, the tumor cells were diffusely positive for the androgen receptor, CK19, CK5/6, EGFR, and SOX10, whereas they were focally positive for GCDFP-15, S-100 protein, and mammaglobin. The tumor nests were surrounded by alpha-smooth muscle actin-p63-/calponin-/CK14-positive myoepithelial cells. The Ki-67 labeling index was 51.2%. Genetic analysis showed no evidence of the TRIM27-RET or NCOA4-RET fusion gene. We finally diagnosed the tumor as a high-grade mixed intercalated duct/apocrine-type IDC of the upper lip. IDC of the minor salivary glands is exceedingly rare. We discuss diagnostic problems associated with minor salivary gland lesions, and the "basal-like" phenotype of this case.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Asian People
Biomarkers, Tumor/analysis
Carcinoma, Intraductal, Noninfiltrating/*diagnosis/metabolism/surgery
ErbB Receptors/analysis/genetics
Female
Gene Expression Regulation, Neoplastic
Humans
Immunohistochemistry
Japan
Keratin-19/analysis/genetics
Keratin-5/analysis/genetics
Keratin-6/analysis/genetics
Lip/surgery
Lip Neoplasms/*diagnosis/metabolism/surgery
Middle Aged
Receptors, Androgen/analysis/genetics
SOXE Transcription Factors/analysis/genetics
RevDate: 2025-01-15
CmpDate: 2021-12-31
Novel mechanism for OSM-promoted extracellular matrix remodeling in breast cancer: LOXL2 upregulation and subsequent ECM alignment.
Breast cancer research : BCR, 23(1):56.
BACKGROUND: Invasive ductal carcinoma (IDC) is a serious problem for patients as it metastasizes, decreasing 5-year patient survival from > 95 to ~ 27%. The breast tumor microenvironment (TME) is often saturated with proinflammatory cytokines, such as oncostatin M (OSM), which promote epithelial-to-mesenchymal transitions (EMT) in IDC and increased metastasis. The extracellular matrix (ECM) also plays an important role in promoting invasive and metastatic potential of IDC. Specifically, the reorganization and alignment of collagen fibers in stromal ECM leads to directed tumor cell motility, which promotes metastasis. Lysyl oxidase like-2 (LOXL2) catalyzes ECM remodeling by crosslinking of collagen I in the ECM. We propose a novel mechanism whereby OSM induces LOXL2 expression, mediating stromal ECM remodeling of the breast TME.
METHODS: Bioinformatics was utilized to determine survival and gene correlation in patients. IDC cell lines were treated with OSM (also IL-6, LIF, and IL-1β) and analyzed for LOXL2 expression by qRT-PCR and immunolabelling techniques. Collagen I contraction assays, 3D invasion assays, and confocal microscopy were performed with and without LOXL2 inhibition to determine the impact of OSM-induced LOXL2 on the ECM.
RESULTS: Our studies demonstrate that IDC patients with high LOXL2 and OSM co-expression had worse rates of metastasis-free survival than those with high levels of either, individually, and LOXL2 expression is positively correlated to OSM/OSM receptor (OSMR) expression in IDC patients. Furthermore, human IDC cells treated with OSM resulted in a significant increase in LOXL2 mRNA, which led to upregulated protein expression of secreted, glycosylated, and enzymatically active LOXL2. The expression of LOXL2 in IDC cells did not affect OSM-promoted EMT, and LOXL2 was localized to the cytoplasm and/or secreted. OSM-induced LOXL2 promoted an increase in ECM collagen I fiber crosslinking, which led to significant fiber alignment between cells and increased IDC cell invasion.
CONCLUSIONS: Aligned collagen fibers in the ECM provide pathways for tumor cells to migrate more easily through the stroma to nearby vasculature and tissue. These results provide a new paradigm through which proinflammatory cytokine OSM promotes tumor progression. Understanding the nuances in IDC metastasis will lead to better potential therapeutics to combat against the possibility.
Additional Links: PMID-34011405
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34011405,
year = {2021},
author = {Dinca, SC and Greiner, D and Weidenfeld, K and Bond, L and Barkan, D and Jorcyk, CL},
title = {Novel mechanism for OSM-promoted extracellular matrix remodeling in breast cancer: LOXL2 upregulation and subsequent ECM alignment.},
journal = {Breast cancer research : BCR},
volume = {23},
number = {1},
pages = {56},
pmid = {34011405},
issn = {1465-542X},
support = {R25 GM123927/GM/NIGMS NIH HHS/United States ; 1C06RR020533/GM/NIGMS NIH HHS/United States ; P20 GM109095/GM/NIGMS NIH HHS/United States ; U54 GM104944/GM/NIGMS NIH HHS/United States ; 0619737//National Science Foundation/ ; 0923535//National Science Foundation/ ; AR298//Smylie Family Cancer Fund (US)/ ; 2017237//United States - Israel Binational Science Foundation/ ; },
mesh = {Amino Acid Oxidoreductases/genetics/*metabolism ; Breast Neoplasms/genetics/*metabolism/pathology ; Carcinoma, Ductal, Breast/genetics/metabolism/pathology ; Cell Line, Tumor ; Collagen Type I/metabolism ; Epithelial-Mesenchymal Transition/genetics ; Extracellular Matrix/*metabolism ; Female ; Glycosylation ; Humans ; Inflammation ; Neoplasm Metastasis ; Oncostatin M/genetics/*metabolism/pharmacology ; Oncostatin M Receptor beta Subunit/genetics/metabolism ; Prognosis ; Signal Transduction ; Tumor Microenvironment ; Up-Regulation/genetics ; },
abstract = {BACKGROUND: Invasive ductal carcinoma (IDC) is a serious problem for patients as it metastasizes, decreasing 5-year patient survival from > 95 to ~ 27%. The breast tumor microenvironment (TME) is often saturated with proinflammatory cytokines, such as oncostatin M (OSM), which promote epithelial-to-mesenchymal transitions (EMT) in IDC and increased metastasis. The extracellular matrix (ECM) also plays an important role in promoting invasive and metastatic potential of IDC. Specifically, the reorganization and alignment of collagen fibers in stromal ECM leads to directed tumor cell motility, which promotes metastasis. Lysyl oxidase like-2 (LOXL2) catalyzes ECM remodeling by crosslinking of collagen I in the ECM. We propose a novel mechanism whereby OSM induces LOXL2 expression, mediating stromal ECM remodeling of the breast TME.
METHODS: Bioinformatics was utilized to determine survival and gene correlation in patients. IDC cell lines were treated with OSM (also IL-6, LIF, and IL-1β) and analyzed for LOXL2 expression by qRT-PCR and immunolabelling techniques. Collagen I contraction assays, 3D invasion assays, and confocal microscopy were performed with and without LOXL2 inhibition to determine the impact of OSM-induced LOXL2 on the ECM.
RESULTS: Our studies demonstrate that IDC patients with high LOXL2 and OSM co-expression had worse rates of metastasis-free survival than those with high levels of either, individually, and LOXL2 expression is positively correlated to OSM/OSM receptor (OSMR) expression in IDC patients. Furthermore, human IDC cells treated with OSM resulted in a significant increase in LOXL2 mRNA, which led to upregulated protein expression of secreted, glycosylated, and enzymatically active LOXL2. The expression of LOXL2 in IDC cells did not affect OSM-promoted EMT, and LOXL2 was localized to the cytoplasm and/or secreted. OSM-induced LOXL2 promoted an increase in ECM collagen I fiber crosslinking, which led to significant fiber alignment between cells and increased IDC cell invasion.
CONCLUSIONS: Aligned collagen fibers in the ECM provide pathways for tumor cells to migrate more easily through the stroma to nearby vasculature and tissue. These results provide a new paradigm through which proinflammatory cytokine OSM promotes tumor progression. Understanding the nuances in IDC metastasis will lead to better potential therapeutics to combat against the possibility.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Amino Acid Oxidoreductases/genetics/*metabolism
Breast Neoplasms/genetics/*metabolism/pathology
Carcinoma, Ductal, Breast/genetics/metabolism/pathology
Cell Line, Tumor
Collagen Type I/metabolism
Epithelial-Mesenchymal Transition/genetics
Extracellular Matrix/*metabolism
Female
Glycosylation
Humans
Inflammation
Neoplasm Metastasis
Oncostatin M/genetics/*metabolism/pharmacology
Oncostatin M Receptor beta Subunit/genetics/metabolism
Prognosis
Signal Transduction
Tumor Microenvironment
Up-Regulation/genetics
RevDate: 2026-01-27
CmpDate: 2022-03-18
HAND2 is a novel obesity-linked adipogenic transcription factor regulated by glucocorticoid signalling.
Diabetologia, 64(8):1850-1865.
AIMS/HYPOTHESIS: Adipocytes are critical cornerstones of energy metabolism. While obesity-induced adipocyte dysfunction is associated with insulin resistance and systemic metabolic disturbances, adipogenesis, the formation of new adipocytes and healthy adipose tissue expansion are associated with metabolic benefits. Understanding the molecular mechanisms governing adipogenesis is of great clinical potential to efficiently restore metabolic health in obesity. Here we investigate the role of heart and neural crest derivatives-expressed 2 (HAND2) in adipogenesis.
METHODS: Human white adipose tissue (WAT) was collected from two cross-sectional studies of 318 and 96 individuals. In vitro, for mechanistic experiments we used primary adipocytes from humans and mice as well as human multipotent adipose-derived stem (hMADS) cells. Gene silencing was performed using siRNA or genetic inactivation in primary adipocytes from loxP and or tamoxifen-inducible Cre-ERT2 mouse models with Cre-encoding mRNA or tamoxifen, respectively. Adipogenesis and adipocyte metabolism were measured by Oil Red O staining, quantitative PCR (qPCR), microarray, glucose uptake assay, western blot and lipolysis assay. A combinatorial RNA sequencing (RNAseq) and ChIP qPCR approach was used to identify target genes regulated by HAND2. In vivo, we created a conditional adipocyte Hand2 deletion mouse model using Cre under control of the Adipoq promoter (Hand2[AdipoqCre]) and performed a large panel of metabolic tests.
RESULTS: We found that HAND2 is an obesity-linked white adipocyte transcription factor regulated by glucocorticoids that was necessary but insufficient for adipocyte differentiation in vitro. In a large cohort of humans, WAT HAND2 expression was correlated to BMI. The HAND2 gene was enriched in white adipocytes compared with brown, induced early in differentiation and responded to dexamethasone (DEX), a typical glucocorticoid receptor (GR, encoded by NR3C1) agonist. Silencing of NR3C1 in hMADS cells or deletion of GR in a transgenic conditional mouse model results in diminished HAND2 expression, establishing that adipocyte HAND2 is regulated by glucocorticoids via GR in vitro and in vivo. Furthermore, we identified gene clusters indirectly regulated by the GR-HAND2 pathway. Interestingly, silencing of HAND2 impaired adipocyte differentiation in hMADS and primary mouse adipocytes. However, a conditional adipocyte Hand2 deletion mouse model using Cre under control of the Adipoq promoter did not mirror these effects on adipose tissue differentiation, indicating that HAND2 was required at stages prior to Adipoq expression.
CONCLUSIONS/INTERPRETATION: In summary, our study identifies HAND2 as a novel obesity-linked adipocyte transcription factor, highlighting new mechanisms of GR-dependent adipogenesis in humans and mice.
DATA AVAILABILITY: Array data have been submitted to the GEO database at NCBI (GSE148699).
Additional Links: PMID-34014371
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34014371,
year = {2021},
author = {Giroud, M and Tsokanos, FF and Caratti, G and Kotschi, S and Khani, S and Jouffe, C and Vogl, ES and Irmler, M and Glantschnig, C and Gil-Lozano, M and Hass, D and Khan, AA and Garcia, MR and Mattijssen, F and Maida, A and Tews, D and Fischer-Posovszky, P and Feuchtinger, A and Virtanen, KA and Beckers, J and Wabitsch, M and Uhlenhaut, H and Blüher, M and Tuckermann, J and Scheideler, M and Bartelt, A and Herzig, S},
title = {HAND2 is a novel obesity-linked adipogenic transcription factor regulated by glucocorticoid signalling.},
journal = {Diabetologia},
volume = {64},
number = {8},
pages = {1850-1865},
pmid = {34014371},
issn = {1432-0428},
mesh = {Adipocytes/*metabolism ; Adipogenesis/physiology ; Adipose Tissue, Brown/metabolism ; Adult ; Aged ; Animals ; Basic Helix-Loop-Helix Proteins/*genetics ; Cross-Sectional Studies ; Female ; Gene Expression Regulation/*physiology ; Gene Silencing ; Glucocorticoids/*pharmacology ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Middle Aged ; Obesity/*genetics ; Real-Time Polymerase Chain Reaction ; Signal Transduction ; Transcription Factors/*genetics ; Young Adult ; },
abstract = {AIMS/HYPOTHESIS: Adipocytes are critical cornerstones of energy metabolism. While obesity-induced adipocyte dysfunction is associated with insulin resistance and systemic metabolic disturbances, adipogenesis, the formation of new adipocytes and healthy adipose tissue expansion are associated with metabolic benefits. Understanding the molecular mechanisms governing adipogenesis is of great clinical potential to efficiently restore metabolic health in obesity. Here we investigate the role of heart and neural crest derivatives-expressed 2 (HAND2) in adipogenesis.
METHODS: Human white adipose tissue (WAT) was collected from two cross-sectional studies of 318 and 96 individuals. In vitro, for mechanistic experiments we used primary adipocytes from humans and mice as well as human multipotent adipose-derived stem (hMADS) cells. Gene silencing was performed using siRNA or genetic inactivation in primary adipocytes from loxP and or tamoxifen-inducible Cre-ERT2 mouse models with Cre-encoding mRNA or tamoxifen, respectively. Adipogenesis and adipocyte metabolism were measured by Oil Red O staining, quantitative PCR (qPCR), microarray, glucose uptake assay, western blot and lipolysis assay. A combinatorial RNA sequencing (RNAseq) and ChIP qPCR approach was used to identify target genes regulated by HAND2. In vivo, we created a conditional adipocyte Hand2 deletion mouse model using Cre under control of the Adipoq promoter (Hand2[AdipoqCre]) and performed a large panel of metabolic tests.
RESULTS: We found that HAND2 is an obesity-linked white adipocyte transcription factor regulated by glucocorticoids that was necessary but insufficient for adipocyte differentiation in vitro. In a large cohort of humans, WAT HAND2 expression was correlated to BMI. The HAND2 gene was enriched in white adipocytes compared with brown, induced early in differentiation and responded to dexamethasone (DEX), a typical glucocorticoid receptor (GR, encoded by NR3C1) agonist. Silencing of NR3C1 in hMADS cells or deletion of GR in a transgenic conditional mouse model results in diminished HAND2 expression, establishing that adipocyte HAND2 is regulated by glucocorticoids via GR in vitro and in vivo. Furthermore, we identified gene clusters indirectly regulated by the GR-HAND2 pathway. Interestingly, silencing of HAND2 impaired adipocyte differentiation in hMADS and primary mouse adipocytes. However, a conditional adipocyte Hand2 deletion mouse model using Cre under control of the Adipoq promoter did not mirror these effects on adipose tissue differentiation, indicating that HAND2 was required at stages prior to Adipoq expression.
CONCLUSIONS/INTERPRETATION: In summary, our study identifies HAND2 as a novel obesity-linked adipocyte transcription factor, highlighting new mechanisms of GR-dependent adipogenesis in humans and mice.
DATA AVAILABILITY: Array data have been submitted to the GEO database at NCBI (GSE148699).},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adipocytes/*metabolism
Adipogenesis/physiology
Adipose Tissue, Brown/metabolism
Adult
Aged
Animals
Basic Helix-Loop-Helix Proteins/*genetics
Cross-Sectional Studies
Female
Gene Expression Regulation/*physiology
Gene Silencing
Glucocorticoids/*pharmacology
Humans
Male
Mice
Mice, Inbred C57BL
Mice, Knockout
Middle Aged
Obesity/*genetics
Real-Time Polymerase Chain Reaction
Signal Transduction
Transcription Factors/*genetics
Young Adult
RevDate: 2022-01-17
CmpDate: 2022-01-17
Operable breast cancer: How not to worsen the prognosis, especially in triple negative and stage II tumors.
Surgical oncology, 38:101596.
INTRODUCTION: Oncological surgery must follow some fundamental principles to be truly curative, one of which is the resection of the tumor with surgical margins free of neoplasia. In breast cancer, surgery with positive margins should be expanded immediately. There are probably different intensities, between the stages and molecular subtypes of operable breast cancer, of worsening prognosis due to the surgical margin compromised by the neoplasia in women not submitted to the necessary enlargement of the positive surgical margin. MATERIALS AND.
METHODS: Seven hundred and forty-seven women with invasive ductal carcinoma of the breast, analyzing anatomical-pathological information, types of surgery, molecular subtypes, and the presence or absence of the surgical margin compromised by neoplasia.
RESULTS: Sixty-one (8.2%) patients had positive surgical margin, causing 2.85 times more risk of locoregional relapse compared to negative surgical margin by multivariate analysis. In subgroup analysis, among stages I, II and III, stage II was the most negatively impacted, with those patients presenting 2.42 times more risk of distant metastasis and 4.94 times more risk of locoregional relapses compared to negative surgical margin by multivariate analysis. Among the molecular subtypes, Triple Negative tumors with a positive surgical margin had 3.56 times more risk of death, 4.98 times more risk of distant metastasis and 5.55 times more risk of locoregional relapse compared to negative surgical margin by multivariate analysis.
CONCLUSIONS: The positive surgical margin, especially in Stage II and Triple-Negative breast cancer patients negatively impact the patient's evolution, increasing risk of distant metastasis and death.
Additional Links: PMID-34015750
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34015750,
year = {2021},
author = {de Araújo, RA and Cordero da Luz, FA and da Costa Marinho, E and Mendes, TR and Nascimento, CP and Ribeiro Delfino, PF and Antonioli, RM and Ruas, AC and Alves, AR and Araújo, BJ and de Paula Machado, JP and Guedes Pereira, TO and França do Espírito Santo, M and Barbosa Silva, MJ},
title = {Operable breast cancer: How not to worsen the prognosis, especially in triple negative and stage II tumors.},
journal = {Surgical oncology},
volume = {38},
number = {},
pages = {101596},
doi = {10.1016/j.suronc.2021.101596},
pmid = {34015750},
issn = {1879-3320},
mesh = {Adult ; Aged ; Aged, 80 and over ; Female ; Follow-Up Studies ; Humans ; *Margins of Excision ; Mastectomy/*mortality ; Middle Aged ; Neoplasm Recurrence, Local/pathology/*surgery ; Neoplasm Staging ; Retrospective Studies ; Survival Rate ; Triple Negative Breast Neoplasms/pathology/*surgery ; },
abstract = {INTRODUCTION: Oncological surgery must follow some fundamental principles to be truly curative, one of which is the resection of the tumor with surgical margins free of neoplasia. In breast cancer, surgery with positive margins should be expanded immediately. There are probably different intensities, between the stages and molecular subtypes of operable breast cancer, of worsening prognosis due to the surgical margin compromised by the neoplasia in women not submitted to the necessary enlargement of the positive surgical margin. MATERIALS AND.
METHODS: Seven hundred and forty-seven women with invasive ductal carcinoma of the breast, analyzing anatomical-pathological information, types of surgery, molecular subtypes, and the presence or absence of the surgical margin compromised by neoplasia.
RESULTS: Sixty-one (8.2%) patients had positive surgical margin, causing 2.85 times more risk of locoregional relapse compared to negative surgical margin by multivariate analysis. In subgroup analysis, among stages I, II and III, stage II was the most negatively impacted, with those patients presenting 2.42 times more risk of distant metastasis and 4.94 times more risk of locoregional relapses compared to negative surgical margin by multivariate analysis. Among the molecular subtypes, Triple Negative tumors with a positive surgical margin had 3.56 times more risk of death, 4.98 times more risk of distant metastasis and 5.55 times more risk of locoregional relapse compared to negative surgical margin by multivariate analysis.
CONCLUSIONS: The positive surgical margin, especially in Stage II and Triple-Negative breast cancer patients negatively impact the patient's evolution, increasing risk of distant metastasis and death.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Aged, 80 and over
Female
Follow-Up Studies
Humans
*Margins of Excision
Mastectomy/*mortality
Middle Aged
Neoplasm Recurrence, Local/pathology/*surgery
Neoplasm Staging
Retrospective Studies
Survival Rate
Triple Negative Breast Neoplasms/pathology/*surgery
RevDate: 2021-11-02
CmpDate: 2021-10-14
Let-7f miRNA regulates SDF-1α- and hypoxia-promoted migration of mesenchymal stem cells and attenuates mammary tumor growth upon exosomal release.
Cell death & disease, 12(6):516.
Bone marrow-derived human mesenchymal stem cells (hMSCs) are recruited to damaged or inflamed tissues where they contribute to tissue repair. This multi-step process involves chemokine-directed invasion of hMSCs and on-site release of factors that influence target cells or tumor tissues. However, the underlying molecular mechanisms are largely unclear. Previously, we described that microRNA let-7f controls hMSC differentiation. Here, we investigated the role of let-7f in chemotactic invasion and paracrine anti-tumor effects. Incubation with stromal cell-derived factor-1α (SDF-1α) or inflammatory cytokines upregulated let-7f expression in hMSCs. Transfection of hMSCs with let-7f mimics enhanced CXCR4-dependent invasion by augmentation of pericellular proteolysis and release of matrix metalloproteinase-9. Hypoxia-induced stabilization of the hypoxia-inducible factor 1 alpha in hMSCs promoted cell invasion via let-7f and activation of autophagy. Dependent on its endogenous level, let-7f facilitated hMSC motility and invasion through regulation of the autophagic flux in these cells. In addition, secreted let-7f encapsulated in exosomes was increased upon upregulation of endogenous let-7f by treatment of the cells with SDF-1α, hypoxia, or induction of autophagy. In recipient 4T1 tumor cells, hMSC-derived exosomal let-7f attenuated proliferation and invasion. Moreover, implantation of 3D spheroids composed of hMSCs and 4T1 cells into a breast cancer mouse model demonstrated that hMSCs overexpressing let-7f inhibited tumor growth in vivo. Our findings provide evidence that let-7f is pivotal in the regulation of hMSC invasion in response to inflammation and hypoxia, suggesting that exosomal let-7f exhibits paracrine anti-tumor effects.
Additional Links: PMID-34016957
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34016957,
year = {2021},
author = {Egea, V and Kessenbrock, K and Lawson, D and Bartelt, A and Weber, C and Ries, C},
title = {Let-7f miRNA regulates SDF-1α- and hypoxia-promoted migration of mesenchymal stem cells and attenuates mammary tumor growth upon exosomal release.},
journal = {Cell death & disease},
volume = {12},
number = {6},
pages = {516},
pmid = {34016957},
issn = {2041-4889},
mesh = {Animals ; Cell Communication/physiology ; Cell Differentiation/physiology ; Cell Proliferation/physiology ; Chemokine CXCL12/*metabolism ; Disease Models, Animal ; Female ; Humans ; Mammary Neoplasms, Experimental/genetics/*metabolism/pathology ; Mesenchymal Stem Cells/*metabolism/pathology ; Mice ; Mice, Inbred BALB C ; MicroRNAs/biosynthesis/*genetics ; Transfection ; Tumor Hypoxia/*physiology ; },
abstract = {Bone marrow-derived human mesenchymal stem cells (hMSCs) are recruited to damaged or inflamed tissues where they contribute to tissue repair. This multi-step process involves chemokine-directed invasion of hMSCs and on-site release of factors that influence target cells or tumor tissues. However, the underlying molecular mechanisms are largely unclear. Previously, we described that microRNA let-7f controls hMSC differentiation. Here, we investigated the role of let-7f in chemotactic invasion and paracrine anti-tumor effects. Incubation with stromal cell-derived factor-1α (SDF-1α) or inflammatory cytokines upregulated let-7f expression in hMSCs. Transfection of hMSCs with let-7f mimics enhanced CXCR4-dependent invasion by augmentation of pericellular proteolysis and release of matrix metalloproteinase-9. Hypoxia-induced stabilization of the hypoxia-inducible factor 1 alpha in hMSCs promoted cell invasion via let-7f and activation of autophagy. Dependent on its endogenous level, let-7f facilitated hMSC motility and invasion through regulation of the autophagic flux in these cells. In addition, secreted let-7f encapsulated in exosomes was increased upon upregulation of endogenous let-7f by treatment of the cells with SDF-1α, hypoxia, or induction of autophagy. In recipient 4T1 tumor cells, hMSC-derived exosomal let-7f attenuated proliferation and invasion. Moreover, implantation of 3D spheroids composed of hMSCs and 4T1 cells into a breast cancer mouse model demonstrated that hMSCs overexpressing let-7f inhibited tumor growth in vivo. Our findings provide evidence that let-7f is pivotal in the regulation of hMSC invasion in response to inflammation and hypoxia, suggesting that exosomal let-7f exhibits paracrine anti-tumor effects.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Animals
Cell Communication/physiology
Cell Differentiation/physiology
Cell Proliferation/physiology
Chemokine CXCL12/*metabolism
Disease Models, Animal
Female
Humans
Mammary Neoplasms, Experimental/genetics/*metabolism/pathology
Mesenchymal Stem Cells/*metabolism/pathology
Mice
Mice, Inbred BALB C
MicroRNAs/biosynthesis/*genetics
Transfection
Tumor Hypoxia/*physiology
RevDate: 2026-01-27
CmpDate: 2021-06-01
Orphan GPR116 mediates the insulin sensitizing effects of the hepatokine FNDC4 in adipose tissue.
Nature communications, 12(1):2999.
The proper functional interaction between different tissues represents a key component in systemic metabolic control. Indeed, disruption of endocrine inter-tissue communication is a hallmark of severe metabolic dysfunction in obesity and diabetes. Here, we show that the FNDC4-GPR116, liver-white adipose tissue endocrine axis controls glucose homeostasis. We found that the liver primarily controlled the circulating levels of soluble FNDC4 (sFNDC4) and lowering of the hepatokine FNDC4 led to prediabetes in mice. Further, we identified the orphan adhesion GPCR GPR116 as a receptor of sFNDC4 in the white adipose tissue. Upon direct and high affinity binding of sFNDC4 to GPR116, sFNDC4 promoted insulin signaling and insulin-mediated glucose uptake in white adipocytes. Indeed, supplementation with FcsFNDC4 in prediabetic mice improved glucose tolerance and inflammatory markers in a white-adipocyte selective and GPR116-dependent manner. Of note, the sFNDC4-GPR116, liver-adipose tissue axis was dampened in (pre) diabetic human patients. Thus our findings will now allow for harnessing this endocrine circuit for alternative therapeutic strategies in obesity-related pre-diabetes.
Additional Links: PMID-34016966
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34016966,
year = {2021},
author = {Georgiadi, A and Lopez-Salazar, V and Merahbi, RE and Karikari, RA and Ma, X and Mourão, A and Klepac, K and Bühler, L and Alfaro, AJ and Kaczmarek, I and Linford, A and Bosma, M and Shilkova, O and Ritvos, O and Nakamura, N and Hirose, S and Lassi, M and Teperino, R and Machado, J and Scheideler, M and Dietrich, A and Geerlof, A and Feuchtinger, A and Blutke, A and Fischer, K and Müller, TD and Kessler, K and Schöneberg, T and Thor, D and Hornemann, S and Kruse, M and Nawroth, P and Pivovarova-Ramich, O and Pfeiffer, AFH and Sattler, M and Blüher, M and Herzig, S},
title = {Orphan GPR116 mediates the insulin sensitizing effects of the hepatokine FNDC4 in adipose tissue.},
journal = {Nature communications},
volume = {12},
number = {1},
pages = {2999},
pmid = {34016966},
issn = {2041-1723},
mesh = {3T3-L1 Cells ; Adipocytes/metabolism ; Adipose Tissue, White/cytology/*metabolism ; Adolescent ; Adult ; Aged ; Animals ; CHO Cells ; Cohort Studies ; Cricetulus ; Cross-Sectional Studies ; Diabetes Mellitus, Type 2/blood/metabolism/prevention & control ; Diet, High-Fat/adverse effects ; Disease Models, Animal ; Female ; Gene Knockdown Techniques ; Glucose/metabolism ; HEK293 Cells ; Hep G2 Cells ; Humans ; Insulin/metabolism ; Insulin Resistance ; Islets of Langerhans/metabolism ; Liver/metabolism ; Male ; Membrane Proteins/administration & dosage/blood/genetics/*metabolism ; Mice ; Mice, Knockout ; Middle Aged ; NIH 3T3 Cells ; Prediabetic State/blood/drug therapy/etiology/*metabolism ; Primary Cell Culture ; Proteins/analysis/*metabolism ; Receptors, G-Protein-Coupled/blood/genetics/*metabolism ; Recombinant Fusion Proteins/administration & dosage/genetics/isolation & purification ; Young Adult ; Fibronectins ; },
abstract = {The proper functional interaction between different tissues represents a key component in systemic metabolic control. Indeed, disruption of endocrine inter-tissue communication is a hallmark of severe metabolic dysfunction in obesity and diabetes. Here, we show that the FNDC4-GPR116, liver-white adipose tissue endocrine axis controls glucose homeostasis. We found that the liver primarily controlled the circulating levels of soluble FNDC4 (sFNDC4) and lowering of the hepatokine FNDC4 led to prediabetes in mice. Further, we identified the orphan adhesion GPCR GPR116 as a receptor of sFNDC4 in the white adipose tissue. Upon direct and high affinity binding of sFNDC4 to GPR116, sFNDC4 promoted insulin signaling and insulin-mediated glucose uptake in white adipocytes. Indeed, supplementation with FcsFNDC4 in prediabetic mice improved glucose tolerance and inflammatory markers in a white-adipocyte selective and GPR116-dependent manner. Of note, the sFNDC4-GPR116, liver-adipose tissue axis was dampened in (pre) diabetic human patients. Thus our findings will now allow for harnessing this endocrine circuit for alternative therapeutic strategies in obesity-related pre-diabetes.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
3T3-L1 Cells
Adipocytes/metabolism
Adipose Tissue, White/cytology/*metabolism
Adolescent
Adult
Aged
Animals
CHO Cells
Cohort Studies
Cricetulus
Cross-Sectional Studies
Diabetes Mellitus, Type 2/blood/metabolism/prevention & control
Diet, High-Fat/adverse effects
Disease Models, Animal
Female
Gene Knockdown Techniques
Glucose/metabolism
HEK293 Cells
Hep G2 Cells
Humans
Insulin/metabolism
Insulin Resistance
Islets of Langerhans/metabolism
Liver/metabolism
Male
Membrane Proteins/administration & dosage/blood/genetics/*metabolism
Mice
Mice, Knockout
Middle Aged
NIH 3T3 Cells
Prediabetic State/blood/drug therapy/etiology/*metabolism
Primary Cell Culture
Proteins/analysis/*metabolism
Receptors, G-Protein-Coupled/blood/genetics/*metabolism
Recombinant Fusion Proteins/administration & dosage/genetics/isolation & purification
Young Adult
Fibronectins
RevDate: 2022-02-02
CmpDate: 2022-02-02
Carcinomatous cirrhosis as radiographically occult liver metastases of breast cancer: A systematic literature review.
Cancer treatment and research communications, 28:100388.
In the present study, we aimed to clarify features of carcinomatous cirrhosis from breast cancer presenting as refractory transudate ascites and acute liver failure. In our systematic literature review, we identified 26 studies and 31 cases including our case of this rare condition. Our patient was a 49-year-old woman with a history of ascites and liver failure for the past 4 years and currently being treated for invasive ductal breast cancer. On radiography, she had occult liver metastases that were confirmed using laparoscopic liver biopsy. In the 31 cases, data on the reported year, age, type of primary breast cancer, time from breast cancer diagnosis, presence of ascites and/or varices, liver biopsy, diagnostic modalities, outcomes, and survival were documented and analyzed. All cases were reported during 1984-2020, with a mean patient age of 52.9 years. Eighteen patients (58.1%) were diagnosed with ductal breast cancer. Twenty-two patients (70.9%) had ascites. All patients had gradual progression to liver dysfunction. The following tests were performed: computed tomography (77.4%); ultrasound (58.0%); liver biopsy (100%); postmortem biopsy (35.5%), transjugular liver biopsy (32.3%), and laparoscopic liver biopsy (3.2%). Outcomes were reported for 29 patients, of whom 24 (82.3%) died after 1 day to 16 months. Invasive ductal carcinoma was the most common histological type; however, invasive lobular carcinoma was more frequent (32.3%) than its reported incidence in the breast. Carcinomatous cirrhosis has poor prognosis at relatively rash and is difficult to diagnose with usual modalities. It may be associated with E-cadherin loss or CD44 pronouncement.
Additional Links: PMID-34022480
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34022480,
year = {2021},
author = {Hoshina, H and Takei, H and Nakamura, M and Nishimoto, F and Hanamura, S},
title = {Carcinomatous cirrhosis as radiographically occult liver metastases of breast cancer: A systematic literature review.},
journal = {Cancer treatment and research communications},
volume = {28},
number = {},
pages = {100388},
doi = {10.1016/j.ctarc.2021.100388},
pmid = {34022480},
issn = {2468-2942},
mesh = {Ascites/*diagnosis/etiology ; Breast Neoplasms/*pathology ; Female ; Humans ; Liver Cirrhosis/*diagnosis/etiology ; Liver Neoplasms/complications/*diagnosis/secondary ; Magnetic Resonance Imaging ; Tomography, X-Ray Computed ; },
abstract = {In the present study, we aimed to clarify features of carcinomatous cirrhosis from breast cancer presenting as refractory transudate ascites and acute liver failure. In our systematic literature review, we identified 26 studies and 31 cases including our case of this rare condition. Our patient was a 49-year-old woman with a history of ascites and liver failure for the past 4 years and currently being treated for invasive ductal breast cancer. On radiography, she had occult liver metastases that were confirmed using laparoscopic liver biopsy. In the 31 cases, data on the reported year, age, type of primary breast cancer, time from breast cancer diagnosis, presence of ascites and/or varices, liver biopsy, diagnostic modalities, outcomes, and survival were documented and analyzed. All cases were reported during 1984-2020, with a mean patient age of 52.9 years. Eighteen patients (58.1%) were diagnosed with ductal breast cancer. Twenty-two patients (70.9%) had ascites. All patients had gradual progression to liver dysfunction. The following tests were performed: computed tomography (77.4%); ultrasound (58.0%); liver biopsy (100%); postmortem biopsy (35.5%), transjugular liver biopsy (32.3%), and laparoscopic liver biopsy (3.2%). Outcomes were reported for 29 patients, of whom 24 (82.3%) died after 1 day to 16 months. Invasive ductal carcinoma was the most common histological type; however, invasive lobular carcinoma was more frequent (32.3%) than its reported incidence in the breast. Carcinomatous cirrhosis has poor prognosis at relatively rash and is difficult to diagnose with usual modalities. It may be associated with E-cadherin loss or CD44 pronouncement.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Ascites/*diagnosis/etiology
Breast Neoplasms/*pathology
Female
Humans
Liver Cirrhosis/*diagnosis/etiology
Liver Neoplasms/complications/*diagnosis/secondary
Magnetic Resonance Imaging
Tomography, X-Ray Computed
RevDate: 2026-01-27
CmpDate: 2021-06-14
CRISPECTOR provides accurate estimation of genome editing translocation and off-target activity from comparative NGS data.
Nature communications, 12(1):3042.
Controlling off-target editing activity is one of the central challenges in making CRISPR technology accurate and applicable in medical practice. Current algorithms for analyzing off-target activity do not provide statistical quantification, are not sufficiently sensitive in separating signal from noise in experiments with low editing rates, and do not address the detection of translocations. Here we present CRISPECTOR, a software tool that supports the detection and quantification of on- and off-target genome-editing activity from NGS data using paired treatment/control CRISPR experiments. In particular, CRISPECTOR facilitates the statistical analysis of NGS data from multiplex-PCR comparative experiments to detect and quantify adverse translocation events. We validate the observed results and show independent evidence of the occurrence of translocations in human cell lines, after genome editing. Our methodology is based on a statistical model comparison approach leading to better false-negative rates in sites with weak yet significant off-target activity.
Additional Links: PMID-34031394
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34031394,
year = {2021},
author = {Amit, I and Iancu, O and Levy-Jurgenson, A and Kurgan, G and McNeill, MS and Rettig, GR and Allen, D and Breier, D and Ben Haim, N and Wang, Y and Anavy, L and Hendel, A and Yakhini, Z},
title = {CRISPECTOR provides accurate estimation of genome editing translocation and off-target activity from comparative NGS data.},
journal = {Nature communications},
volume = {12},
number = {1},
pages = {3042},
pmid = {34031394},
issn = {2041-1723},
mesh = {Algorithms ; *CRISPR-Cas Systems ; Computational Biology/*methods ; DNA-Binding Proteins/genetics ; Gene Editing/*methods ; HEK293 Cells ; Homeodomain Proteins/genetics ; Humans ; Nuclear Proteins/genetics ; Software ; Transcription Factors/genetics ; Empty Spiracles Homeobox Proteins ; },
abstract = {Controlling off-target editing activity is one of the central challenges in making CRISPR technology accurate and applicable in medical practice. Current algorithms for analyzing off-target activity do not provide statistical quantification, are not sufficiently sensitive in separating signal from noise in experiments with low editing rates, and do not address the detection of translocations. Here we present CRISPECTOR, a software tool that supports the detection and quantification of on- and off-target genome-editing activity from NGS data using paired treatment/control CRISPR experiments. In particular, CRISPECTOR facilitates the statistical analysis of NGS data from multiplex-PCR comparative experiments to detect and quantify adverse translocation events. We validate the observed results and show independent evidence of the occurrence of translocations in human cell lines, after genome editing. Our methodology is based on a statistical model comparison approach leading to better false-negative rates in sites with weak yet significant off-target activity.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Algorithms
*CRISPR-Cas Systems
Computational Biology/*methods
DNA-Binding Proteins/genetics
Gene Editing/*methods
HEK293 Cells
Homeodomain Proteins/genetics
Humans
Nuclear Proteins/genetics
Software
Transcription Factors/genetics
Empty Spiracles Homeobox Proteins
RevDate: 2026-05-18
CmpDate: 2021-08-09
PRESERVE: Randomized Trial of Intensive Versus Standard Blood Pressure Control in Small Vessel Disease.
Stroke, 52(8):2484-2493.
[Figure: see text].
Additional Links: PMID-34044580
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34044580,
year = {2021},
author = {Markus, HS and Egle, M and Croall, ID and Sari, H and Khan, U and Hassan, A and Harkness, K and MacKinnon, A and O'Brien, JT and Morris, RG and Barrick, TR and Blamire, AM and Tozer, DJ and Ford, GA and , },
title = {PRESERVE: Randomized Trial of Intensive Versus Standard Blood Pressure Control in Small Vessel Disease.},
journal = {Stroke},
volume = {52},
number = {8},
pages = {2484-2493},
doi = {10.1161/STROKEAHA.120.032054},
pmid = {34044580},
issn = {1524-4628},
mesh = {Aged ; Antihypertensive Agents/*therapeutic use ; Blood Pressure ; Cerebral Small Vessel Diseases/complications/*diagnostic imaging/physiopathology ; *Cognition ; Diffusion Tensor Imaging ; Disease Progression ; Female ; Humans ; Hypertension/complications/*drug therapy/physiopathology ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Neuropsychological Tests ; *Patient Care Planning ; Stroke, Lacunar/complications/*diagnostic imaging/physiopathology ; White Matter/*diagnostic imaging ; },
abstract = {[Figure: see text].},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Aged
Antihypertensive Agents/*therapeutic use
Blood Pressure
Cerebral Small Vessel Diseases/complications/*diagnostic imaging/physiopathology
*Cognition
Diffusion Tensor Imaging
Disease Progression
Female
Humans
Hypertension/complications/*drug therapy/physiopathology
Magnetic Resonance Imaging
Male
Middle Aged
Neuropsychological Tests
*Patient Care Planning
Stroke, Lacunar/complications/*diagnostic imaging/physiopathology
White Matter/*diagnostic imaging
RevDate: 2024-04-02
CmpDate: 2021-10-28
Sprouty4 negatively regulates ERK/MAPK signaling and the transition from in situ to invasive breast ductal carcinoma.
PloS one, 16(5):e0252314.
Breast ductal carcinoma in situ (DCIS) is a non-obligate precursor of invasive ductal carcinoma (IDC). It is still unclear which DCIS will become invasive and which will remain indolent. Patients often receive surgery and radiotherapy, but this early intervention has not produced substantial decreases in late-stage disease. Sprouty proteins are important regulators of ERK/MAPK signaling and have been studied in various cancers. We hypothesized that Sprouty4 is an endogenous inhibitor of ERK/MAPK signaling and that its loss/reduced expression is a mechanism by which DCIS lesions progress toward IDC, including triple-negative disease. Using immunohistochemistry, we found reduced Sprouty4 expression in IDC patient samples compared to DCIS, and that ERK/MAPK phosphorylation had an inverse relationship to Sprouty4 expression. These observations were reproduced using a 3D culture model of disease progression. Knockdown of Sprouty4 in MCF10.DCIS cells increased ERK/MAPK phosphorylation as well as their invasive capability, while overexpression of Sprouty4 in MCF10.CA1d IDC cells reduced ERK/MAPK phosphorylation, invasion, and the aggressive phenotype exhibited by these cells. Immunofluorescence experiments revealed reorganization of the actin cytoskeleton and relocation of E-cadherin back to the cell surface, consistent with the restoration of adherens junctions. To determine whether these effects were due to changes in ERK/MAPK signaling, MEK1/2 was pharmacologically inhibited in IDC cells. Nanomolar concentrations of MEK162/binimetinib restored an epithelial-like phenotype and reduced pericellular proteolysis, similar to Sprouty4 overexpression. From these data we conclude that Sprouty4 acts to control ERK/MAPK signaling in DCIS, thus limiting the progression of these premalignant breast lesions.
Additional Links: PMID-34048471
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34048471,
year = {2021},
author = {Brock, EJ and Jackson, RM and Boerner, JL and Li, Q and Tennis, MA and Sloane, BF and Mattingly, RR},
title = {Sprouty4 negatively regulates ERK/MAPK signaling and the transition from in situ to invasive breast ductal carcinoma.},
journal = {PloS one},
volume = {16},
number = {5},
pages = {e0252314},
pmid = {34048471},
issn = {1932-6203},
support = {F31 CA213807/CA/NCI NIH HHS/United States ; R01 CA131990/CA/NCI NIH HHS/United States ; R25 GM058905/GM/NIGMS NIH HHS/United States ; T32 CA009531/CA/NCI NIH HHS/United States ; P30 CA022453/CA/NCI NIH HHS/United States ; },
mesh = {Breast Neoplasms/genetics/*metabolism ; Carcinoma, Ductal, Breast/genetics/*metabolism ; Carcinoma, Intraductal, Noninfiltrating/genetics/*metabolism ; Cell Line, Tumor ; Cells, Cultured ; Female ; Humans ; Immunoblotting ; Immunohistochemistry ; Intracellular Signaling Peptides and Proteins/genetics/*metabolism ; Mitogen-Activated Protein Kinase 1/genetics/*metabolism ; Mitogen-Activated Protein Kinase 3/genetics/*metabolism ; Nerve Tissue Proteins/genetics/*metabolism ; },
abstract = {Breast ductal carcinoma in situ (DCIS) is a non-obligate precursor of invasive ductal carcinoma (IDC). It is still unclear which DCIS will become invasive and which will remain indolent. Patients often receive surgery and radiotherapy, but this early intervention has not produced substantial decreases in late-stage disease. Sprouty proteins are important regulators of ERK/MAPK signaling and have been studied in various cancers. We hypothesized that Sprouty4 is an endogenous inhibitor of ERK/MAPK signaling and that its loss/reduced expression is a mechanism by which DCIS lesions progress toward IDC, including triple-negative disease. Using immunohistochemistry, we found reduced Sprouty4 expression in IDC patient samples compared to DCIS, and that ERK/MAPK phosphorylation had an inverse relationship to Sprouty4 expression. These observations were reproduced using a 3D culture model of disease progression. Knockdown of Sprouty4 in MCF10.DCIS cells increased ERK/MAPK phosphorylation as well as their invasive capability, while overexpression of Sprouty4 in MCF10.CA1d IDC cells reduced ERK/MAPK phosphorylation, invasion, and the aggressive phenotype exhibited by these cells. Immunofluorescence experiments revealed reorganization of the actin cytoskeleton and relocation of E-cadherin back to the cell surface, consistent with the restoration of adherens junctions. To determine whether these effects were due to changes in ERK/MAPK signaling, MEK1/2 was pharmacologically inhibited in IDC cells. Nanomolar concentrations of MEK162/binimetinib restored an epithelial-like phenotype and reduced pericellular proteolysis, similar to Sprouty4 overexpression. From these data we conclude that Sprouty4 acts to control ERK/MAPK signaling in DCIS, thus limiting the progression of these premalignant breast lesions.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Breast Neoplasms/genetics/*metabolism
Carcinoma, Ductal, Breast/genetics/*metabolism
Carcinoma, Intraductal, Noninfiltrating/genetics/*metabolism
Cell Line, Tumor
Cells, Cultured
Female
Humans
Immunoblotting
Immunohistochemistry
Intracellular Signaling Peptides and Proteins/genetics/*metabolism
Mitogen-Activated Protein Kinase 1/genetics/*metabolism
Mitogen-Activated Protein Kinase 3/genetics/*metabolism
Nerve Tissue Proteins/genetics/*metabolism
RevDate: 2022-09-02
CmpDate: 2022-02-10
Cribriform Prostate Cancer: Clinical Pathologic and Molecular Considerations.
Urology, 155:47-54.
Intraductal cribriform (IDC) and invasive cribriform morphologies are associated with worse prostate cancer outcomes. Limited retrospective studies have associated IDC and cribriform morphology with germline mutations in DNA repair genes, particularly BRCA2. These findings, which prompted the National Comprehensive Cancer Network (NCCN) Guidelines for Prostate Cancer and Genetic/Familial High- Risk Assessment to consider germline testing for individuals with IDC/cribriform histology, have been questioned in a recent prospective study. A deepened understanding of the molecular mechanisms driving disease aggressiveness in cribriform morphology is critical to provide more clarity in clinical decision making. This review summarizes the current understanding of IDC and cribriform prostate cancer, with an emphasis on clinical outcomes and molecular alterations.
Additional Links: PMID-34058243
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34058243,
year = {2021},
author = {Hesterberg, AB and Gordetsky, JB and Hurley, PJ},
title = {Cribriform Prostate Cancer: Clinical Pathologic and Molecular Considerations.},
journal = {Urology},
volume = {155},
number = {},
pages = {47-54},
pmid = {34058243},
issn = {1527-9995},
support = {R01 CA211695/CA/NCI NIH HHS/United States ; R01 CA218526/CA/NCI NIH HHS/United States ; T32 CA009592/CA/NCI NIH HHS/United States ; },
mesh = {Humans ; Male ; Molecular Diagnostic Techniques ; Neoplasm Grading ; Prostatic Neoplasms/*diagnosis/*genetics/pathology ; },
abstract = {Intraductal cribriform (IDC) and invasive cribriform morphologies are associated with worse prostate cancer outcomes. Limited retrospective studies have associated IDC and cribriform morphology with germline mutations in DNA repair genes, particularly BRCA2. These findings, which prompted the National Comprehensive Cancer Network (NCCN) Guidelines for Prostate Cancer and Genetic/Familial High- Risk Assessment to consider germline testing for individuals with IDC/cribriform histology, have been questioned in a recent prospective study. A deepened understanding of the molecular mechanisms driving disease aggressiveness in cribriform morphology is critical to provide more clarity in clinical decision making. This review summarizes the current understanding of IDC and cribriform prostate cancer, with an emphasis on clinical outcomes and molecular alterations.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Humans
Male
Molecular Diagnostic Techniques
Neoplasm Grading
Prostatic Neoplasms/*diagnosis/*genetics/pathology
RevDate: 2022-02-02
CmpDate: 2022-01-17
Assessment of MYC/PTEN Status by Gene-Protein Assay in Grade Group 2 Prostate Biopsies.
The Journal of molecular diagnostics : JMD, 23(8):1030-1041.
This study leveraged a gene-protein assay to assess MYC and PTEN status at prostate cancer biopsy and examined the association with adverse outcomes after surgery. MYC gain and PTEN loss were simultaneously assessed by chromogenic in situ hybridization and immunohistochemistry, respectively, using 277 Grade Group 2 needle biopsies that were followed by prostatectomy. The maximal size of cribriform Gleason pattern 4 carcinoma (CRIB), the presence of intraductal carcinoma (IDC), and percentage of Gleason pattern 4 carcinoma at biopsy were also annotated. MYC gain or PTEN loss was present in 19% and 18% of biopsies, respectively, whereas both alterations were present in 9% of biopsies. Tumors with one or both alterations were significantly more likely to have non-organ-confined disease (NOCD) at radical prostatectomy. In logistic regression models, including clinical stage, tumor volume on biopsy, and presence of CRIB/IDC, cases with MYC gain and PTEN loss remained at higher risk for NOCD (odds ratio, 6.23; 95% CI, 1.74-24.55; P = 0.005). The area under the curve for a baseline model using CAPRA variables (age, prostate-specific antigen, percentage of core involvement, clinical stage) was increased from 0.68 to 0.69 with inclusion of CRIB/IDC status and to 0.75 with MYC/PTEN status. Dual MYC/PTEN status can be assessed in a single slide and is independently associated with increased risk of NOCD for Grade Group 2 biopsies.
Additional Links: PMID-34062284
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34062284,
year = {2021},
author = {Salles, DC and Vidotto, T and Faisal, FA and Tosoian, JJ and Guedes, LB and Muranyi, A and Bai, I and Singh, S and Yan, D and Shanmugam, K and Lotan, TL},
title = {Assessment of MYC/PTEN Status by Gene-Protein Assay in Grade Group 2 Prostate Biopsies.},
journal = {The Journal of molecular diagnostics : JMD},
volume = {23},
number = {8},
pages = {1030-1041},
pmid = {34062284},
issn = {1943-7811},
support = {P30 CA006973/CA/NCI NIH HHS/United States ; P50 CA058236/CA/NCI NIH HHS/United States ; },
mesh = {Adult ; Aged ; *Biomarkers, Tumor ; Humans ; Immunohistochemistry/methods ; Kaplan-Meier Estimate ; Male ; Middle Aged ; *Molecular Diagnostic Techniques/methods/standards ; Neoplasm Grading ; Neoplasm Staging ; PTEN Phosphohydrolase/genetics/*metabolism ; Prognosis ; Prostate/metabolism/*pathology ; Prostatic Neoplasms/*diagnosis/genetics/*metabolism/mortality ; Protein Binding ; Proto-Oncogene Proteins c-myc/genetics/*metabolism ; Reproducibility of Results ; },
abstract = {This study leveraged a gene-protein assay to assess MYC and PTEN status at prostate cancer biopsy and examined the association with adverse outcomes after surgery. MYC gain and PTEN loss were simultaneously assessed by chromogenic in situ hybridization and immunohistochemistry, respectively, using 277 Grade Group 2 needle biopsies that were followed by prostatectomy. The maximal size of cribriform Gleason pattern 4 carcinoma (CRIB), the presence of intraductal carcinoma (IDC), and percentage of Gleason pattern 4 carcinoma at biopsy were also annotated. MYC gain or PTEN loss was present in 19% and 18% of biopsies, respectively, whereas both alterations were present in 9% of biopsies. Tumors with one or both alterations were significantly more likely to have non-organ-confined disease (NOCD) at radical prostatectomy. In logistic regression models, including clinical stage, tumor volume on biopsy, and presence of CRIB/IDC, cases with MYC gain and PTEN loss remained at higher risk for NOCD (odds ratio, 6.23; 95% CI, 1.74-24.55; P = 0.005). The area under the curve for a baseline model using CAPRA variables (age, prostate-specific antigen, percentage of core involvement, clinical stage) was increased from 0.68 to 0.69 with inclusion of CRIB/IDC status and to 0.75 with MYC/PTEN status. Dual MYC/PTEN status can be assessed in a single slide and is independently associated with increased risk of NOCD for Grade Group 2 biopsies.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
*Biomarkers, Tumor
Humans
Immunohistochemistry/methods
Kaplan-Meier Estimate
Male
Middle Aged
*Molecular Diagnostic Techniques/methods/standards
Neoplasm Grading
Neoplasm Staging
PTEN Phosphohydrolase/genetics/*metabolism
Prognosis
Prostate/metabolism/*pathology
Prostatic Neoplasms/*diagnosis/genetics/*metabolism/mortality
Protein Binding
Proto-Oncogene Proteins c-myc/genetics/*metabolism
Reproducibility of Results
RevDate: 2024-04-05
CmpDate: 2022-04-06
Spatial transcriptomics at subspot resolution with BayesSpace.
Nature biotechnology, 39(11):1375-1384.
Recent spatial gene expression technologies enable comprehensive measurement of transcriptomic profiles while retaining spatial context. However, existing analysis methods do not address the limited resolution of the technology or use the spatial information efficiently. Here, we introduce BayesSpace, a fully Bayesian statistical method that uses the information from spatial neighborhoods for resolution enhancement of spatial transcriptomic data and for clustering analysis. We benchmark BayesSpace against current methods for spatial and non-spatial clustering and show that it improves identification of distinct intra-tissue transcriptional profiles from samples of the brain, melanoma, invasive ductal carcinoma and ovarian adenocarcinoma. Using immunohistochemistry and an in silico dataset constructed from scRNA-seq data, we show that BayesSpace resolves tissue structure that is not detectable at the original resolution and identifies transcriptional heterogeneity inaccessible to histological analysis. Our results illustrate BayesSpace's utility in facilitating the discovery of biological insights from spatial transcriptomic datasets.
Additional Links: PMID-34083791
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34083791,
year = {2021},
author = {Zhao, E and Stone, MR and Ren, X and Guenthoer, J and Smythe, KS and Pulliam, T and Williams, SR and Uytingco, CR and Taylor, SEB and Nghiem, P and Bielas, JH and Gottardo, R},
title = {Spatial transcriptomics at subspot resolution with BayesSpace.},
journal = {Nature biotechnology},
volume = {39},
number = {11},
pages = {1375-1384},
pmid = {34083791},
issn = {1546-1696},
support = {P30 CA015704/CA/NCI NIH HHS/United States ; S10 OD028685/OD/NIH HHS/United States ; P01 CA225517/CA/NCI NIH HHS/United States ; F30 CA254168/CA/NCI NIH HHS/United States ; T32 CA080416/CA/NCI NIH HHS/United States ; },
mesh = {Bayes Theorem ; Cluster Analysis ; Gene Expression Profiling/methods ; Sequence Analysis, RNA/methods ; *Single-Cell Analysis/methods ; *Transcriptome/genetics ; },
abstract = {Recent spatial gene expression technologies enable comprehensive measurement of transcriptomic profiles while retaining spatial context. However, existing analysis methods do not address the limited resolution of the technology or use the spatial information efficiently. Here, we introduce BayesSpace, a fully Bayesian statistical method that uses the information from spatial neighborhoods for resolution enhancement of spatial transcriptomic data and for clustering analysis. We benchmark BayesSpace against current methods for spatial and non-spatial clustering and show that it improves identification of distinct intra-tissue transcriptional profiles from samples of the brain, melanoma, invasive ductal carcinoma and ovarian adenocarcinoma. Using immunohistochemistry and an in silico dataset constructed from scRNA-seq data, we show that BayesSpace resolves tissue structure that is not detectable at the original resolution and identifies transcriptional heterogeneity inaccessible to histological analysis. Our results illustrate BayesSpace's utility in facilitating the discovery of biological insights from spatial transcriptomic datasets.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Bayes Theorem
Cluster Analysis
Gene Expression Profiling/methods
Sequence Analysis, RNA/methods
*Single-Cell Analysis/methods
*Transcriptome/genetics
RevDate: 2022-04-28
CmpDate: 2021-11-22
Effects of astaxanthin on metastasis suppressors in ductal carcinoma. A preliminary study.
Annali italiani di chirurgia, 92:565-574.
BACKGROUND: Breast cancer (BC) is a major public health problem diagnosed in more than 2 million women worldwide in 2018, causing more than 600,000 deaths. 90% of deaths due to breast cancer are caused by metastasis. Metastasis is a complex process that is divided into several steps, including separation of tumor cells from the primary tumor, invasion, cell migration, intravasation, vasculature survival, extravasation, and colonization of the secondary site. Astaxanthin (AXT) is a marine-based ketocarotenoid that has many different potential functions such as anti-oxidant, anti-inflammatory and oxidative stress-reducing properties to potentially reduce the incidence of cancer or inhibit the expansion of tumor cells. This study aims to investigate the effects of astaxanthin as a new metastasis inhibitor on T47D human invasive ductal carcinoma breast cancer cell.
MATERIAL AND METHODS: To investigate the effects of the astaxanthin as a new metastasis inhibitor on T47D cell, expression levels of anti-maspin, anti-Kai1, anti-BRMS1, and anti-MKK4 were examined by western blot. Also, we evaluated differences of these suppressors expression levels in tissue sections of 10 patients diagnosed with in situ and invasive ductal carcinoma by immunohistochemistry method.
RESULT: 250 μM astaxanthin increased the activation of all metastasis suppressing proteins. Also, these metastasis suppressors showed higher expression in invasive ductal carcinoma tissues than in situ ductal carcinoma patients.
CONCLUSION: We think that astaxanthin is a promising therapeutic agent for invasive ductal carcinoma patients. The effects of astaxanthin on metastasis in breast cancer should be investigated further based on these results.
KEY WORDS: Breast, cancer, metastasis.
Additional Links: PMID-34096509
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34096509,
year = {2021},
author = {Badak, B and Aykanat, NEB and Kacar, S and Sahinturk, V and Arik, D and Canaz, F},
title = {Effects of astaxanthin on metastasis suppressors in ductal carcinoma. A preliminary study.},
journal = {Annali italiani di chirurgia},
volume = {92},
number = {},
pages = {565-574},
pmid = {34096509},
issn = {2239-253X},
mesh = {*Breast Neoplasms/drug therapy ; *Carcinoma, Ductal, Breast/drug therapy ; *Carcinoma, Intraductal, Noninfiltrating ; Female ; Humans ; Neoplasm Metastasis ; Xanthophylls/pharmacology ; },
abstract = {BACKGROUND: Breast cancer (BC) is a major public health problem diagnosed in more than 2 million women worldwide in 2018, causing more than 600,000 deaths. 90% of deaths due to breast cancer are caused by metastasis. Metastasis is a complex process that is divided into several steps, including separation of tumor cells from the primary tumor, invasion, cell migration, intravasation, vasculature survival, extravasation, and colonization of the secondary site. Astaxanthin (AXT) is a marine-based ketocarotenoid that has many different potential functions such as anti-oxidant, anti-inflammatory and oxidative stress-reducing properties to potentially reduce the incidence of cancer or inhibit the expansion of tumor cells. This study aims to investigate the effects of astaxanthin as a new metastasis inhibitor on T47D human invasive ductal carcinoma breast cancer cell.
MATERIAL AND METHODS: To investigate the effects of the astaxanthin as a new metastasis inhibitor on T47D cell, expression levels of anti-maspin, anti-Kai1, anti-BRMS1, and anti-MKK4 were examined by western blot. Also, we evaluated differences of these suppressors expression levels in tissue sections of 10 patients diagnosed with in situ and invasive ductal carcinoma by immunohistochemistry method.
RESULT: 250 μM astaxanthin increased the activation of all metastasis suppressing proteins. Also, these metastasis suppressors showed higher expression in invasive ductal carcinoma tissues than in situ ductal carcinoma patients.
CONCLUSION: We think that astaxanthin is a promising therapeutic agent for invasive ductal carcinoma patients. The effects of astaxanthin on metastasis in breast cancer should be investigated further based on these results.
KEY WORDS: Breast, cancer, metastasis.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Breast Neoplasms/drug therapy
*Carcinoma, Ductal, Breast/drug therapy
*Carcinoma, Intraductal, Noninfiltrating
Female
Humans
Neoplasm Metastasis
Xanthophylls/pharmacology
RevDate: 2022-02-15
CmpDate: 2022-02-15
Pyogenic lung abscess in an infectious disease unit: a 20-year retrospective study.
Therapeutic advances in respiratory disease, 15:17534666211003012.
BACKGROUND: Pyogenic lung abscesses are rare and poorly described infections. This study aimed to describe their prognostic factors.
METHODS: We retrospectively included all patients hospitalized between 1 January 1998 and 1 June 2018, with an International Classification of Diseases, version 10 (IDC-10) diagnosis of pyogenic lung abscess, from the Diamm based medical records (Micro6, Nancy, France). Parasitic, fungal, or mycobacterial lung abscesses were excluded.
RESULTS: A total of 64 patients were included. Abscesses were associated with immunosuppression in 28 patients, including HIV infection and immunosuppressive therapy for eight and 12 patients, respectively. Bacterial identification was obtained for 36 patients. Nine patients (14%) developed lung abscesses after hematogenous dissemination. They differed from bronchogenic abscesses by their younger age (p = 0.03), the absence of smoking or emphysema (p = 0.05), Staphylococcus aureus (p = 0.001) or Streptococcus spp. (p = 0.05) isolation, and the smaller size of their abscess (p = 0.02). Overall, evolution was marked by radiological sequelae (46.9%), relapse (12.5%), and death (4.8%). Radiological sequelae occurred more frequently during the course of bronchogenic abscesses (p = 0.02), particularly when they spontaneously discharged (p = 0.04). Relapses were more frequent in patients with emphysema (p = 0.04) and when Haemophilus influenzae was isolated (p = 0.04). In multivariate analysis, poor outcomes, including death, sequelae, and relapse occurred more frequently in patients who had bronchogenic abscess (p = 0.02), and in those who received antibiotics during less than 6 weeks (p = 0.05).
CONCLUSION: A duration of antibiotic treatment of less than 6 weeks and bronchogenic presentation were globally associated with poor outcome of pyogenic lung abscesses. These data should be considered when proposing guidelines for the care of pyogenic lung abscesses.The reviews of this paper are available via the supplemental material section.
Additional Links: PMID-34098822
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34098822,
year = {2021},
author = {Maitre, T and Ok, V and Calin, R and Lassel, L and Canestri, A and Denis, M and Hamidi, M and Tavolaro, S and Verdet, C and Parrot, A and Cadranel, J and Pialoux, G},
title = {Pyogenic lung abscess in an infectious disease unit: a 20-year retrospective study.},
journal = {Therapeutic advances in respiratory disease},
volume = {15},
number = {},
pages = {17534666211003012},
pmid = {34098822},
issn = {1753-4666},
mesh = {Hospital Units ; Humans ; *Liver Abscess, Pyogenic/epidemiology/therapy ; Retrospective Studies ; Risk Factors ; },
abstract = {BACKGROUND: Pyogenic lung abscesses are rare and poorly described infections. This study aimed to describe their prognostic factors.
METHODS: We retrospectively included all patients hospitalized between 1 January 1998 and 1 June 2018, with an International Classification of Diseases, version 10 (IDC-10) diagnosis of pyogenic lung abscess, from the Diamm based medical records (Micro6, Nancy, France). Parasitic, fungal, or mycobacterial lung abscesses were excluded.
RESULTS: A total of 64 patients were included. Abscesses were associated with immunosuppression in 28 patients, including HIV infection and immunosuppressive therapy for eight and 12 patients, respectively. Bacterial identification was obtained for 36 patients. Nine patients (14%) developed lung abscesses after hematogenous dissemination. They differed from bronchogenic abscesses by their younger age (p = 0.03), the absence of smoking or emphysema (p = 0.05), Staphylococcus aureus (p = 0.001) or Streptococcus spp. (p = 0.05) isolation, and the smaller size of their abscess (p = 0.02). Overall, evolution was marked by radiological sequelae (46.9%), relapse (12.5%), and death (4.8%). Radiological sequelae occurred more frequently during the course of bronchogenic abscesses (p = 0.02), particularly when they spontaneously discharged (p = 0.04). Relapses were more frequent in patients with emphysema (p = 0.04) and when Haemophilus influenzae was isolated (p = 0.04). In multivariate analysis, poor outcomes, including death, sequelae, and relapse occurred more frequently in patients who had bronchogenic abscess (p = 0.02), and in those who received antibiotics during less than 6 weeks (p = 0.05).
CONCLUSION: A duration of antibiotic treatment of less than 6 weeks and bronchogenic presentation were globally associated with poor outcome of pyogenic lung abscesses. These data should be considered when proposing guidelines for the care of pyogenic lung abscesses.The reviews of this paper are available via the supplemental material section.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Hospital Units
Humans
*Liver Abscess, Pyogenic/epidemiology/therapy
Retrospective Studies
Risk Factors
RevDate: 2021-09-27
CmpDate: 2021-09-27
Keep it simple: Identification of basic versus complex emotions in spoken language in individuals with autism spectrum disorder without intellectual disability: A meta-analysis study.
Autism research : official journal of the International Society for Autism Research, 14(9):1948-1964.
Daily functioning involves identifying emotions in spoken language, a fundamental aspect of social interactions. To date, there is inconsistent evidence in the literature on whether individuals with autism spectrum disorder without intellectual disability (ASD-without-ID) experience difficulties in identification of spoken emotions. We conducted a meta-analysis (literature search following the PRISMA guidelines), with 26 data sets (taken from 23 peer-reviewed journal articles) comparing individuals with ASD-without-ID (N = 614) and typically-developed (TD) controls (N = 640), from nine countries and in seven languages (published until February 2020). In our analyses there was no sufficient evidence to suggest that individuals with HF-ASD differ from matched controls in the identification of simple prosodic emotions (e.g., sadness, happiness). However, individuals with ASD-without-ID were found to perform significantly worse than controls in identification of complex prosodic emotions (e.g., envy and boredom). The level of the semantic content of the stimuli presented (e.g., sentences vs. strings of digits) was not found to have an impact on the results. In conclusion, the difference in findings between simple and complex emotions calls for a new-look on emotion processing in ASD-without-ID. Intervention programs may rely on the intact abilities of individuals with ASD-without-ID to process simple emotions and target improved performance with complex emotions. LAY SUMMARY: Individuals with autism spectrum disorder without intellectual disability (ASD-without-ID) do not differ from matched controls in the identification of simple prosodic emotions (e.g., sadness, happiness). However, they were found to perform significantly worse than controls in the identification of complex prosodic emotions (e.g., envy, boredom). This was found in a meta-analysis of 26 data sets with 1254 participants from nine countries and in seven languages. Intervention programs may rely on the intact abilities of individuals with ASD-without-ID to process simple emotions.
Additional Links: PMID-34101373
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34101373,
year = {2021},
author = {Icht, M and Zukerman, G and Ben-Itzchak, E and Ben-David, BM},
title = {Keep it simple: Identification of basic versus complex emotions in spoken language in individuals with autism spectrum disorder without intellectual disability: A meta-analysis study.},
journal = {Autism research : official journal of the International Society for Autism Research},
volume = {14},
number = {9},
pages = {1948-1964},
doi = {10.1002/aur.2551},
pmid = {34101373},
issn = {1939-3806},
mesh = {*Autism Spectrum Disorder/complications ; Emotions ; Humans ; *Intellectual Disability/complications ; Language ; },
abstract = {Daily functioning involves identifying emotions in spoken language, a fundamental aspect of social interactions. To date, there is inconsistent evidence in the literature on whether individuals with autism spectrum disorder without intellectual disability (ASD-without-ID) experience difficulties in identification of spoken emotions. We conducted a meta-analysis (literature search following the PRISMA guidelines), with 26 data sets (taken from 23 peer-reviewed journal articles) comparing individuals with ASD-without-ID (N = 614) and typically-developed (TD) controls (N = 640), from nine countries and in seven languages (published until February 2020). In our analyses there was no sufficient evidence to suggest that individuals with HF-ASD differ from matched controls in the identification of simple prosodic emotions (e.g., sadness, happiness). However, individuals with ASD-without-ID were found to perform significantly worse than controls in identification of complex prosodic emotions (e.g., envy and boredom). The level of the semantic content of the stimuli presented (e.g., sentences vs. strings of digits) was not found to have an impact on the results. In conclusion, the difference in findings between simple and complex emotions calls for a new-look on emotion processing in ASD-without-ID. Intervention programs may rely on the intact abilities of individuals with ASD-without-ID to process simple emotions and target improved performance with complex emotions. LAY SUMMARY: Individuals with autism spectrum disorder without intellectual disability (ASD-without-ID) do not differ from matched controls in the identification of simple prosodic emotions (e.g., sadness, happiness). However, they were found to perform significantly worse than controls in the identification of complex prosodic emotions (e.g., envy, boredom). This was found in a meta-analysis of 26 data sets with 1254 participants from nine countries and in seven languages. Intervention programs may rely on the intact abilities of individuals with ASD-without-ID to process simple emotions.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Autism Spectrum Disorder/complications
Emotions
Humans
*Intellectual Disability/complications
Language
RevDate: 2026-01-27
CmpDate: 2021-10-20
Extracellular mutation induces an allosteric effect across the membrane and hampers the activity of MRP1 (ABCC1).
Scientific reports, 11(1):12024.
Dynamic conformational changes play a major role in the function of proteins, including the ATP-Binding Cassette (ABC) transporters. Multidrug Resistance Protein 1 (MRP1) is an ABC exporter that protects cells from toxic molecules. Overexpression of MRP1 has been shown to confer Multidrug Resistance (MDR), a phenomenon in which cancer cells are capable to defend themselves against a broad variety of drugs. In this study, we used varied computational techniques to explore the unique F583A mutation that is known to essentially lock the transporter in a low-affinity solute binding state. We demonstrate how macro-scale conformational changes affect MRP1's stability and dynamics, and how these changes correspond to micro-scale structural perturbations in helices 10-11 and the nucleotide-binding domains (NBDs) of the protein in regions known to be crucial for its ATPase activity. We demonstrate how a single substitution of an outward-facing aromatic amino acid causes a long-range allosteric effect that propagates across the membrane, ranging from the extracellular ECL5 loop to the cytoplasmic NBD2 over a distance of nearly 75 Å, leaving the protein in a non-functional state, and provide the putative allosteric pathway. The identified allosteric structural pathway is not only in agreement with experimental data but enhances our mechanical understanding of MRP1, thereby facilitating the rational design of chemosensitizers toward the success of chemotherapy treatments.
Additional Links: PMID-34103599
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34103599,
year = {2021},
author = {Bin Kanner, Y and Ganoth, A and Tsfadia, Y},
title = {Extracellular mutation induces an allosteric effect across the membrane and hampers the activity of MRP1 (ABCC1).},
journal = {Scientific reports},
volume = {11},
number = {1},
pages = {12024},
pmid = {34103599},
issn = {2045-2322},
mesh = {Allosteric Regulation ; Amino Acid Substitution ; Humans ; ATP-Binding Cassette, Sub-Family C Proteins/*chemistry/*genetics ; *Mutation, Missense ; Protein Domains ; Protein Structure, Secondary ; },
abstract = {Dynamic conformational changes play a major role in the function of proteins, including the ATP-Binding Cassette (ABC) transporters. Multidrug Resistance Protein 1 (MRP1) is an ABC exporter that protects cells from toxic molecules. Overexpression of MRP1 has been shown to confer Multidrug Resistance (MDR), a phenomenon in which cancer cells are capable to defend themselves against a broad variety of drugs. In this study, we used varied computational techniques to explore the unique F583A mutation that is known to essentially lock the transporter in a low-affinity solute binding state. We demonstrate how macro-scale conformational changes affect MRP1's stability and dynamics, and how these changes correspond to micro-scale structural perturbations in helices 10-11 and the nucleotide-binding domains (NBDs) of the protein in regions known to be crucial for its ATPase activity. We demonstrate how a single substitution of an outward-facing aromatic amino acid causes a long-range allosteric effect that propagates across the membrane, ranging from the extracellular ECL5 loop to the cytoplasmic NBD2 over a distance of nearly 75 Å, leaving the protein in a non-functional state, and provide the putative allosteric pathway. The identified allosteric structural pathway is not only in agreement with experimental data but enhances our mechanical understanding of MRP1, thereby facilitating the rational design of chemosensitizers toward the success of chemotherapy treatments.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Allosteric Regulation
Amino Acid Substitution
Humans
ATP-Binding Cassette, Sub-Family C Proteins/*chemistry/*genetics
*Mutation, Missense
Protein Domains
Protein Structure, Secondary
RevDate: 2022-10-07
CmpDate: 2022-03-11
A new method to accurately identify single nucleotide variants using small FFPE breast samples.
Briefings in bioinformatics, 22(6):.
Most tissue collections of neoplasms are composed of formalin-fixed and paraffin-embedded (FFPE) excised tumor samples used for routine diagnostics. DNA sequencing is becoming increasingly important in cancer research and clinical management; however it is difficult to accurately sequence DNA from FFPE samples. We developed and validated a new bioinformatic pipeline to use existing variant-calling strategies to robustly identify somatic single nucleotide variants (SNVs) from whole exome sequencing using small amounts of DNA extracted from archival FFPE samples of breast cancers. We optimized this strategy using 28 pairs of technical replicates. After optimization, the mean similarity between replicates increased 5-fold, reaching 88% (range 0-100%), with a mean of 21.4 SNVs (range 1-68) per sample, representing a markedly superior performance to existing tools. We found that the SNV-identification accuracy declined when there was less than 40 ng of DNA available and that insertion-deletion variant calls are less reliable than single base substitutions. As the first application of the new algorithm, we compared samples of ductal carcinoma in situ of the breast to their adjacent invasive ductal carcinoma samples. We observed an increased number of mutations (paired-samples sign test, P < 0.05), and a higher genetic divergence in the invasive samples (paired-samples sign test, P < 0.01). Our method provides a significant improvement in detecting SNVs in FFPE samples over previous approaches.
Additional Links: PMID-34117742
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34117742,
year = {2021},
author = {Fortunato, A and Mallo, D and Rupp, SM and King, LM and Hardman, T and Lo, JY and Hall, A and Marks, JR and Hwang, ES and Maley, CC},
title = {A new method to accurately identify single nucleotide variants using small FFPE breast samples.},
journal = {Briefings in bioinformatics},
volume = {22},
number = {6},
pages = {},
pmid = {34117742},
issn = {1477-4054},
support = {U54 CA217376/CA/NCI NIH HHS/United States ; R01 CA185138/CA/NCI NIH HHS/United States ; U2C CA233254/CA/NCI NIH HHS/United States ; R01 CA170595/CA/NCI NIH HHS/United States ; P30 CA014236/CA/NCI NIH HHS/United States ; R01 CA140657/CA/NCI NIH HHS/United States ; },
mesh = {*Biomarkers, Tumor ; Breast Neoplasms/*diagnosis/*genetics ; Computational Biology/*methods ; DNA, Neoplasm ; Female ; Genetic Heterogeneity ; Genetic Testing/methods/standards ; High-Throughput Nucleotide Sequencing ; Humans ; Mutation ; *Polymorphism, Single Nucleotide ; Workflow ; },
abstract = {Most tissue collections of neoplasms are composed of formalin-fixed and paraffin-embedded (FFPE) excised tumor samples used for routine diagnostics. DNA sequencing is becoming increasingly important in cancer research and clinical management; however it is difficult to accurately sequence DNA from FFPE samples. We developed and validated a new bioinformatic pipeline to use existing variant-calling strategies to robustly identify somatic single nucleotide variants (SNVs) from whole exome sequencing using small amounts of DNA extracted from archival FFPE samples of breast cancers. We optimized this strategy using 28 pairs of technical replicates. After optimization, the mean similarity between replicates increased 5-fold, reaching 88% (range 0-100%), with a mean of 21.4 SNVs (range 1-68) per sample, representing a markedly superior performance to existing tools. We found that the SNV-identification accuracy declined when there was less than 40 ng of DNA available and that insertion-deletion variant calls are less reliable than single base substitutions. As the first application of the new algorithm, we compared samples of ductal carcinoma in situ of the breast to their adjacent invasive ductal carcinoma samples. We observed an increased number of mutations (paired-samples sign test, P < 0.05), and a higher genetic divergence in the invasive samples (paired-samples sign test, P < 0.01). Our method provides a significant improvement in detecting SNVs in FFPE samples over previous approaches.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Biomarkers, Tumor
Breast Neoplasms/*diagnosis/*genetics
Computational Biology/*methods
DNA, Neoplasm
Female
Genetic Heterogeneity
Genetic Testing/methods/standards
High-Throughput Nucleotide Sequencing
Humans
Mutation
*Polymorphism, Single Nucleotide
Workflow
RevDate: 2021-10-01
CmpDate: 2021-10-01
Deconstructing the parasite multiplication rate of Plasmodium falciparum.
Trends in parasitology, 37(10):922-932.
Epidemiological indicators describing population-level malaria transmission dynamics are widely used to guide policy recommendations. However, the determinants of malaria outcomes within individuals are still poorly understood. This conceptual gap partly reflects the fact that there are few indicators that robustly predict the trajectory of individual infections or clinical outcomes. The parasite multiplication rate (PMR) is a widely used indicator for the Plasmodium intraerythrocytic development cycle (IDC), for example, but its relationship to clinical outcomes is complex. Here, we review its calculation and use in P. falciparum malaria research, as well as the parasite and host factors that impact it. We also provide examples of metrics that can help to link within-host dynamics to malaria clinical outcomes when used alongside the PMR.
Additional Links: PMID-34119440
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34119440,
year = {2021},
author = {Gnangnon, B and Duraisingh, MT and Buckee, CO},
title = {Deconstructing the parasite multiplication rate of Plasmodium falciparum.},
journal = {Trends in parasitology},
volume = {37},
number = {10},
pages = {922-932},
doi = {10.1016/j.pt.2021.05.001},
pmid = {34119440},
issn = {1471-5007},
mesh = {Animals ; Erythrocytes/parasitology ; Host-Parasite Interactions ; Humans ; Malaria, Falciparum/parasitology ; *Plasmodium falciparum/growth & development ; *Protozoan Proteins/metabolism ; },
abstract = {Epidemiological indicators describing population-level malaria transmission dynamics are widely used to guide policy recommendations. However, the determinants of malaria outcomes within individuals are still poorly understood. This conceptual gap partly reflects the fact that there are few indicators that robustly predict the trajectory of individual infections or clinical outcomes. The parasite multiplication rate (PMR) is a widely used indicator for the Plasmodium intraerythrocytic development cycle (IDC), for example, but its relationship to clinical outcomes is complex. Here, we review its calculation and use in P. falciparum malaria research, as well as the parasite and host factors that impact it. We also provide examples of metrics that can help to link within-host dynamics to malaria clinical outcomes when used alongside the PMR.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Animals
Erythrocytes/parasitology
Host-Parasite Interactions
Humans
Malaria, Falciparum/parasitology
*Plasmodium falciparum/growth & development
*Protozoan Proteins/metabolism
RevDate: 2026-07-28
CmpDate: 2021-10-26
An Unusual Case of BIA-ALCL Associated with Prolonged/Complicated Biocell-Textured Expander, followed by Smooth Round Breast Implant Exposure, and Concurrent Use of Adalimumab.
Plastic and reconstructive surgery, 148(2):299-303.
Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a malignancy associated with textured breast implants. BIA-ALCL is typically restricted to the periprosthetic capsule, presenting as a unilateral recurrent seroma years after placement of a textured breast implant. Current estimates suggest an incidence of one in 3300 for patients with Allergan Biocell textured implants. As of February 6, 2019, U.S. Medical Device Reporting associated with BIA-ALCL showed 457 unique cases of BIA-ALCL, with 24 "unverified and potentially inaccurate" cases associated with a nontextured implant. As of February of 2019, there were 688 reported cases to date worldwide. To date, there are no published case reports of BIA-ALCL associated exclusively with smooth implants or with smooth implants after textured expanders, and there has been no reported smooth-only case in any registry, database, or journal worldwide. The authors present a case of BIA-ALCL associated with smooth round implants and textured tissue expanders. A 56-year-old woman was treated for left stage IIA invasive ductal carcinoma with bilateral mastectomies and immediate reconstruction with bilateral subpectoral textured tissue expanders. She underwent exchange to Mentor smooth-round implants, and completed adjuvant chemotherapy. Magnetic resonance imaging and examination 4.5 years after implant placement showed no abnormal findings. The patient had left breast trauma 5 years following implant placement while taking adalimumab, and developed an open wound requiring explantation. A recurrent seroma developed, and tested positive for BIA-ALCL on cytology. Surgical pathologic examination after total capsulectomy demonstrated stage IA BIA-ALCL. To the authors' knowledge, this is the first case report of BIA-ALCL in a patient with textured expanders followed by prolonged exposure to smooth round implants.
Additional Links: PMID-34133406
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34133406,
year = {2021},
author = {Akhavan, AA and Wirtz, EC and Ollila, DW and Bhatt, N},
title = {An Unusual Case of BIA-ALCL Associated with Prolonged/Complicated Biocell-Textured Expander, followed by Smooth Round Breast Implant Exposure, and Concurrent Use of Adalimumab.},
journal = {Plastic and reconstructive surgery},
volume = {148},
number = {2},
pages = {299-303},
doi = {10.1097/PRS.0000000000008155},
pmid = {34133406},
issn = {1529-4242},
mesh = {Adalimumab/*adverse effects ; Breast Implantation/*adverse effects/instrumentation ; Breast Implants/*adverse effects ; Breast Neoplasms/diagnosis/pathology/therapy ; Carcinoma, Ductal, Breast/diagnosis/pathology/therapy ; Chemotherapy, Adjuvant/adverse effects/methods ; Female ; Humans ; Lymphoma, Large-Cell, Anaplastic/*diagnosis/etiology/surgery ; Mastectomy/adverse effects ; Middle Aged ; Surface Properties ; Tissue Expansion Devices/*adverse effects ; },
abstract = {Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a malignancy associated with textured breast implants. BIA-ALCL is typically restricted to the periprosthetic capsule, presenting as a unilateral recurrent seroma years after placement of a textured breast implant. Current estimates suggest an incidence of one in 3300 for patients with Allergan Biocell textured implants. As of February 6, 2019, U.S. Medical Device Reporting associated with BIA-ALCL showed 457 unique cases of BIA-ALCL, with 24 "unverified and potentially inaccurate" cases associated with a nontextured implant. As of February of 2019, there were 688 reported cases to date worldwide. To date, there are no published case reports of BIA-ALCL associated exclusively with smooth implants or with smooth implants after textured expanders, and there has been no reported smooth-only case in any registry, database, or journal worldwide. The authors present a case of BIA-ALCL associated with smooth round implants and textured tissue expanders. A 56-year-old woman was treated for left stage IIA invasive ductal carcinoma with bilateral mastectomies and immediate reconstruction with bilateral subpectoral textured tissue expanders. She underwent exchange to Mentor smooth-round implants, and completed adjuvant chemotherapy. Magnetic resonance imaging and examination 4.5 years after implant placement showed no abnormal findings. The patient had left breast trauma 5 years following implant placement while taking adalimumab, and developed an open wound requiring explantation. A recurrent seroma developed, and tested positive for BIA-ALCL on cytology. Surgical pathologic examination after total capsulectomy demonstrated stage IA BIA-ALCL. To the authors' knowledge, this is the first case report of BIA-ALCL in a patient with textured expanders followed by prolonged exposure to smooth round implants.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adalimumab/*adverse effects
Breast Implantation/*adverse effects/instrumentation
Breast Implants/*adverse effects
Breast Neoplasms/diagnosis/pathology/therapy
Carcinoma, Ductal, Breast/diagnosis/pathology/therapy
Chemotherapy, Adjuvant/adverse effects/methods
Female
Humans
Lymphoma, Large-Cell, Anaplastic/*diagnosis/etiology/surgery
Mastectomy/adverse effects
Middle Aged
Surface Properties
Tissue Expansion Devices/*adverse effects
RevDate: 2021-07-28
CmpDate: 2021-07-28
Structure of the mammalian adenine DNA glycosylase MUTYH: insights into the base excision repair pathway and cancer.
Nucleic acids research, 49(12):7154-7163.
Mammalian MutY homologue (MUTYH) is an adenine DNA glycosylase that excises adenine inserted opposite 8-oxoguanine (8-oxoG). The inherited variations in human MUTYH gene are known to cause MUTYH-associated polyposis (MAP), which is associated with colorectal cancer. MUTYH is involved in base excision repair (BER) with proliferating cell nuclear antigen (PCNA) in DNA replication, which is unique and critical for effective mutation-avoidance. It is also reported that MUTYH has a Zn-binding motif in a unique interdomain connector (IDC) region, which interacts with Rad9-Rad1-Hus1 complex (9-1-1) in DNA damage response, and with apurinic/apyrimidinic endonuclease 1 (APE1) in BER. However, the structural basis for the BER pathway by MUTYH and its interacting proteins is unclear. Here, we determined the crystal structures of complexes between mouse MUTYH and DNA, and between the C-terminal domain of mouse MUTYH and human PCNA. The structures elucidated the repair mechanism for the A:8-oxoG mispair including DNA replication-coupled repair process involving MUTYH and PCNA. The Zn-binding motif was revealed to comprise one histidine and three cysteine residues. The IDC, including the Zn-binding motif, is exposed on the MUTYH surface, suggesting its interaction modes with 9-1-1 and APE1, respectively. The structure of MUTYH explains how MAP mutations perturb MUTYH function.
Additional Links: PMID-34142156
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34142156,
year = {2021},
author = {Nakamura, T and Okabe, K and Hirayama, S and Chirifu, M and Ikemizu, S and Morioka, H and Nakabeppu, Y and Yamagata, Y},
title = {Structure of the mammalian adenine DNA glycosylase MUTYH: insights into the base excision repair pathway and cancer.},
journal = {Nucleic acids research},
volume = {49},
number = {12},
pages = {7154-7163},
pmid = {34142156},
issn = {1362-4962},
mesh = {Adenine ; Adenomatous Polyposis Coli/genetics ; Amino Acid Motifs ; Animals ; DNA/chemistry ; DNA Glycosylases/*chemistry/genetics ; DNA Repair ; DNA Replication ; Guanine/analogs & derivatives ; Humans ; Mice ; Models, Molecular ; Mutation ; Proliferating Cell Nuclear Antigen/chemistry ; Zinc ; },
abstract = {Mammalian MutY homologue (MUTYH) is an adenine DNA glycosylase that excises adenine inserted opposite 8-oxoguanine (8-oxoG). The inherited variations in human MUTYH gene are known to cause MUTYH-associated polyposis (MAP), which is associated with colorectal cancer. MUTYH is involved in base excision repair (BER) with proliferating cell nuclear antigen (PCNA) in DNA replication, which is unique and critical for effective mutation-avoidance. It is also reported that MUTYH has a Zn-binding motif in a unique interdomain connector (IDC) region, which interacts with Rad9-Rad1-Hus1 complex (9-1-1) in DNA damage response, and with apurinic/apyrimidinic endonuclease 1 (APE1) in BER. However, the structural basis for the BER pathway by MUTYH and its interacting proteins is unclear. Here, we determined the crystal structures of complexes between mouse MUTYH and DNA, and between the C-terminal domain of mouse MUTYH and human PCNA. The structures elucidated the repair mechanism for the A:8-oxoG mispair including DNA replication-coupled repair process involving MUTYH and PCNA. The Zn-binding motif was revealed to comprise one histidine and three cysteine residues. The IDC, including the Zn-binding motif, is exposed on the MUTYH surface, suggesting its interaction modes with 9-1-1 and APE1, respectively. The structure of MUTYH explains how MAP mutations perturb MUTYH function.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adenine
Adenomatous Polyposis Coli/genetics
Amino Acid Motifs
Animals
DNA/chemistry
DNA Glycosylases/*chemistry/genetics
DNA Repair
DNA Replication
Guanine/analogs & derivatives
Humans
Mice
Models, Molecular
Mutation
Proliferating Cell Nuclear Antigen/chemistry
Zinc
RevDate: 2023-11-02
CmpDate: 2021-11-16
A gross margin analysis for Nguni cattle farmers in Limpopo Province, South Africa.
PloS one, 16(6):e0253657.
Factors such as increases in population, urbanization, growth in per capita income and changes in consumer taste and preferences are causing gradual increases in livestock product consumption and demand. South Africa is addressing this predicted increase in livestock products demand by commercializing smallholder livestock producers. The Limpopo Industrial Development Corporation (IDC) Nguni Cattle Development Project is an example of such effort. The economic performance of these efforts needs to be evaluated. We use gross margin analysis to evaluate the performance of the Limpopo IDC Nguni Cattle Development Project. Additionally, we use regression analysis to identify factors influencing gross margins. Our results indicate that although smallholders show potential to commercialize, they lack commercial farming experience and require that a strong extension support system be used as one of the strategies to improve profitability. We also noted that individual farmers were more profitable than group farmers. Multiple regression analysis shows that three variables could be used to stimulate gross margin among the Limpopo IDC Nguni Cattle Development Project farmers. These are herd size, distance to market and farm size. Since farm size is a given, policy should focus on assisting farmers to build their herds and to have better access to markets.
Additional Links: PMID-34166430
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34166430,
year = {2021},
author = {Nkadimeng, MV and Makombe, G and Mapiye, O and Mapiye, C and Oluwatayo, I and Dzama, K and Mojapelo, C and Mollel, N and Ngambi, J and Mautjana, MH},
title = {A gross margin analysis for Nguni cattle farmers in Limpopo Province, South Africa.},
journal = {PloS one},
volume = {16},
number = {6},
pages = {e0253657},
pmid = {34166430},
issn = {1932-6203},
mesh = {Animal Husbandry/*economics ; Animals ; Cattle ; *Farmers ; Farms/*economics ; Humans ; South Africa ; },
abstract = {Factors such as increases in population, urbanization, growth in per capita income and changes in consumer taste and preferences are causing gradual increases in livestock product consumption and demand. South Africa is addressing this predicted increase in livestock products demand by commercializing smallholder livestock producers. The Limpopo Industrial Development Corporation (IDC) Nguni Cattle Development Project is an example of such effort. The economic performance of these efforts needs to be evaluated. We use gross margin analysis to evaluate the performance of the Limpopo IDC Nguni Cattle Development Project. Additionally, we use regression analysis to identify factors influencing gross margins. Our results indicate that although smallholders show potential to commercialize, they lack commercial farming experience and require that a strong extension support system be used as one of the strategies to improve profitability. We also noted that individual farmers were more profitable than group farmers. Multiple regression analysis shows that three variables could be used to stimulate gross margin among the Limpopo IDC Nguni Cattle Development Project farmers. These are herd size, distance to market and farm size. Since farm size is a given, policy should focus on assisting farmers to build their herds and to have better access to markets.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Animal Husbandry/*economics
Animals
Cattle
*Farmers
Farms/*economics
Humans
South Africa
RevDate: 2021-07-10
Cerebral hemorrhage due to amyloid angiopathy that was difficult to differentiate from breast cancer metastasis: a case report.
Surgical case reports, 7(1):150.
BACKGROUND: Breast cancer patients are known to develop brain metastasis at a relatively high frequency. However, imaging findings of brain metastases vary, and it is sometimes very difficult to distinguish these from other tumorous lesions and non-neoplastic lesions, such as cerebral hemorrhage. Meanwhile, there are various causes of cerebral hemorrhage; a major one is cerebral amyloid angiopathy (CAA). With the advancement of imaging technology, CAA-related cerebral hemorrhage can be more precisely diagnosed with magnetic resonance imaging (MRI), but definitive diagnosis of CAA can only be made based on pathological assessment. Herein, we report a case of consciousness disorder appearing during adjuvant therapy for breast cancer. We initially considered that the patient's cerebral hemorrhage was due to a metastatic tumor, but based on excisional biopsy, she was diagnosed with CAA.
CASE PRESENTATION: A 73-year-old Japanese woman underwent curative surgery for left breast cancer. Her disease was hormone receptor-positive and human epidermal growth factor receptor 2 (HER2)-positive invasive ductal carcinoma (pStage IIB). While receiving adjuvant treatment, she developed disorientation, and emergent imaging revealed multiple cerebral hemorrhages. There was no apparent enhancement in the cerebral parenchyma on MRI, and differential diagnosis included hemorrhage due to a metastatic tumor, intravascular large B-cell lymphoma, CAA and thrombotic intracranial bleeding. After hospitalization, the bleeding lesion enlarged, resulting in cerebral hernia, and she needed emergency drainage surgery. The tissue surrounding the hemorrhage was pathologically assessed, and she was diagnosed with CAA. Although we initially suspected the lesion to be a metastatic tumor from breast cancer, there were no tumorous cells.
CONCLUSION: Atypical MRI findings made diagnosis difficult in this case, but it should be considered for differential diagnosis when multiple cerebral hemorrhages in elderly patients are observed, especially in cases with symptoms such as transient multifocal neurological deficits and dementia.
Additional Links: PMID-34180038
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34180038,
year = {2021},
author = {Uomori, T and Horimoto, Y and Takanashi, M and Shikanai, A and Nakai, K and Arakawa, A and Saito, M},
title = {Cerebral hemorrhage due to amyloid angiopathy that was difficult to differentiate from breast cancer metastasis: a case report.},
journal = {Surgical case reports},
volume = {7},
number = {1},
pages = {150},
pmid = {34180038},
issn = {2198-7793},
abstract = {BACKGROUND: Breast cancer patients are known to develop brain metastasis at a relatively high frequency. However, imaging findings of brain metastases vary, and it is sometimes very difficult to distinguish these from other tumorous lesions and non-neoplastic lesions, such as cerebral hemorrhage. Meanwhile, there are various causes of cerebral hemorrhage; a major one is cerebral amyloid angiopathy (CAA). With the advancement of imaging technology, CAA-related cerebral hemorrhage can be more precisely diagnosed with magnetic resonance imaging (MRI), but definitive diagnosis of CAA can only be made based on pathological assessment. Herein, we report a case of consciousness disorder appearing during adjuvant therapy for breast cancer. We initially considered that the patient's cerebral hemorrhage was due to a metastatic tumor, but based on excisional biopsy, she was diagnosed with CAA.
CASE PRESENTATION: A 73-year-old Japanese woman underwent curative surgery for left breast cancer. Her disease was hormone receptor-positive and human epidermal growth factor receptor 2 (HER2)-positive invasive ductal carcinoma (pStage IIB). While receiving adjuvant treatment, she developed disorientation, and emergent imaging revealed multiple cerebral hemorrhages. There was no apparent enhancement in the cerebral parenchyma on MRI, and differential diagnosis included hemorrhage due to a metastatic tumor, intravascular large B-cell lymphoma, CAA and thrombotic intracranial bleeding. After hospitalization, the bleeding lesion enlarged, resulting in cerebral hernia, and she needed emergency drainage surgery. The tissue surrounding the hemorrhage was pathologically assessed, and she was diagnosed with CAA. Although we initially suspected the lesion to be a metastatic tumor from breast cancer, there were no tumorous cells.
CONCLUSION: Atypical MRI findings made diagnosis difficult in this case, but it should be considered for differential diagnosis when multiple cerebral hemorrhages in elderly patients are observed, especially in cases with symptoms such as transient multifocal neurological deficits and dementia.},
}
RevDate: 2025-05-30
CmpDate: 2021-10-04
Direct maternal morbidity and the risk of pregnancy-related deaths, stillbirths, and neonatal deaths in South Asia and sub-Saharan Africa: A population-based prospective cohort study in 8 countries.
PLoS medicine, 18(6):e1003644.
BACKGROUND: Maternal morbidity occurs several times more frequently than mortality, yet data on morbidity burden and its effect on maternal, foetal, and newborn outcomes are limited in low- and middle-income countries. We aimed to generate prospective, reliable population-based data on the burden of major direct maternal morbidities in the antenatal, intrapartum, and postnatal periods and its association with maternal, foetal, and neonatal death in South Asia and sub-Saharan Africa.
METHODS AND FINDINGS: This is a prospective cohort study, conducted in 9 research sites in 8 countries of South Asia and sub-Saharan Africa. We conducted population-based surveillance of women of reproductive age (15 to 49 years) to identify pregnancies. Pregnant women who gave consent were include in the study and followed up to birth and 42 days postpartum from 2012 to 2015. We used standard operating procedures, data collection tools, and training to harmonise study implementation across sites. Three home visits during pregnancy and 2 home visits after birth were conducted to collect maternal morbidity information and maternal, foetal, and newborn outcomes. We measured blood pressure and proteinuria to define hypertensive disorders of pregnancy and woman's self-report to identify obstetric haemorrhage, pregnancy-related infection, and prolonged or obstructed labour. Enrolled women whose pregnancy lasted at least 28 weeks or those who died during pregnancy were included in the analysis. We used meta-analysis to combine site-specific estimates of burden, and regression analysis combining all data from all sites to examine associations between the maternal morbidities and adverse outcomes. Among approximately 735,000 women of reproductive age in the study population, and 133,238 pregnancies during the study period, only 1.6% refused consent. Of these, 114,927 pregnancies had morbidity data collected at least once in both antenatal and in postnatal period, and 114,050 of them were included in the analysis. Overall, 32.7% of included pregnancies had at least one major direct maternal morbidity; South Asia had almost double the burden compared to sub-Saharan Africa (43.9%, 95% CI 27.8% to 60.0% in South Asia; 23.7%, 95% CI 19.8% to 27.6% in sub-Saharan Africa). Antepartum haemorrhage was reported in 2.2% (95% CI 1.5% to 2.9%) pregnancies and severe postpartum in 1.7% (95% CI 1.2% to 2.2%) pregnancies. Preeclampsia or eclampsia was reported in 1.4% (95% CI 0.9% to 2.0%) pregnancies, and gestational hypertension alone was reported in 7.4% (95% CI 4.6% to 10.1%) pregnancies. Prolonged or obstructed labour was reported in about 11.1% (95% CI 5.4% to 16.8%) pregnancies. Clinical features of late third trimester antepartum infection were present in 9.1% (95% CI 5.6% to 12.6%) pregnancies and those of postpartum infection in 8.6% (95% CI 4.4% to 12.8%) pregnancies. There were 187 pregnancy-related deaths per 100,000 births, 27 stillbirths per 1,000 births, and 28 neonatal deaths per 1,000 live births with variation by country and region. Direct maternal morbidities were associated with each of these outcomes.
CONCLUSIONS: Our findings imply that health programmes in sub-Saharan Africa and South Asia must intensify their efforts to identify and treat maternal morbidities, which affected about one-third of all pregnancies and to prevent associated maternal and neonatal deaths and stillbirths.
TRIAL REGISTRATION: The study is not a clinical trial.
Additional Links: PMID-34181649
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34181649,
year = {2021},
author = {Aftab, F and Ahmed, I and Ahmed, S and Ali, SM and Amenga-Etego, S and Ariff, S and Bahl, R and Baqui, AH and Begum, N and Bhutta, ZA and Biemba, G and Cousens, S and Das, V and Deb, S and Dhingra, U and Dutta, A and Edmond, K and Esamai, F and Ghosh, AK and Gisore, P and Grogan, C and Hamer, DH and Herlihy, J and Hurt, L and Ilyas, M and Jehan, F and Juma, MH and Kalonji, M and Khanam, R and Kirkwood, BR and Kumar, A and Kumar, A and Kumar, V and Manu, A and Marete, I and Mehmood, U and Minckas, N and Mishra, S and Mitra, DK and Moin, MI and Muhammad, K and Newton, S and Ngaima, S and Nguwo, A and Nisar, MI and Otomba, J and Quaiyum, MA and Sarrassat, S and Sazawal, S and Semrau, KE and Shannon, C and Singh, VP and Soofi, S and Soremekun, S and Suleiman, AM and Sunday, V and Dilip, TR and Tshefu, A and Wasan, Y and Yeboah-Antwi, K and Yoshida, S and Zaidi, AK and , },
title = {Direct maternal morbidity and the risk of pregnancy-related deaths, stillbirths, and neonatal deaths in South Asia and sub-Saharan Africa: A population-based prospective cohort study in 8 countries.},
journal = {PLoS medicine},
volume = {18},
number = {6},
pages = {e1003644},
pmid = {34181649},
issn = {1549-1676},
support = {001/WHO_/World Health Organization/International ; },
mesh = {Adolescent ; Adult ; Female ; Humans ; Infant ; Infant, Newborn ; Pregnancy ; Young Adult ; Africa South of the Sahara/epidemiology ; Asia/epidemiology ; *Infant Mortality ; *Maternal Mortality ; *Pregnancy Complications/diagnosis/mortality ; Pregnancy Outcome ; Prospective Studies ; Risk Assessment ; Risk Factors ; *Stillbirth/epidemiology ; },
abstract = {BACKGROUND: Maternal morbidity occurs several times more frequently than mortality, yet data on morbidity burden and its effect on maternal, foetal, and newborn outcomes are limited in low- and middle-income countries. We aimed to generate prospective, reliable population-based data on the burden of major direct maternal morbidities in the antenatal, intrapartum, and postnatal periods and its association with maternal, foetal, and neonatal death in South Asia and sub-Saharan Africa.
METHODS AND FINDINGS: This is a prospective cohort study, conducted in 9 research sites in 8 countries of South Asia and sub-Saharan Africa. We conducted population-based surveillance of women of reproductive age (15 to 49 years) to identify pregnancies. Pregnant women who gave consent were include in the study and followed up to birth and 42 days postpartum from 2012 to 2015. We used standard operating procedures, data collection tools, and training to harmonise study implementation across sites. Three home visits during pregnancy and 2 home visits after birth were conducted to collect maternal morbidity information and maternal, foetal, and newborn outcomes. We measured blood pressure and proteinuria to define hypertensive disorders of pregnancy and woman's self-report to identify obstetric haemorrhage, pregnancy-related infection, and prolonged or obstructed labour. Enrolled women whose pregnancy lasted at least 28 weeks or those who died during pregnancy were included in the analysis. We used meta-analysis to combine site-specific estimates of burden, and regression analysis combining all data from all sites to examine associations between the maternal morbidities and adverse outcomes. Among approximately 735,000 women of reproductive age in the study population, and 133,238 pregnancies during the study period, only 1.6% refused consent. Of these, 114,927 pregnancies had morbidity data collected at least once in both antenatal and in postnatal period, and 114,050 of them were included in the analysis. Overall, 32.7% of included pregnancies had at least one major direct maternal morbidity; South Asia had almost double the burden compared to sub-Saharan Africa (43.9%, 95% CI 27.8% to 60.0% in South Asia; 23.7%, 95% CI 19.8% to 27.6% in sub-Saharan Africa). Antepartum haemorrhage was reported in 2.2% (95% CI 1.5% to 2.9%) pregnancies and severe postpartum in 1.7% (95% CI 1.2% to 2.2%) pregnancies. Preeclampsia or eclampsia was reported in 1.4% (95% CI 0.9% to 2.0%) pregnancies, and gestational hypertension alone was reported in 7.4% (95% CI 4.6% to 10.1%) pregnancies. Prolonged or obstructed labour was reported in about 11.1% (95% CI 5.4% to 16.8%) pregnancies. Clinical features of late third trimester antepartum infection were present in 9.1% (95% CI 5.6% to 12.6%) pregnancies and those of postpartum infection in 8.6% (95% CI 4.4% to 12.8%) pregnancies. There were 187 pregnancy-related deaths per 100,000 births, 27 stillbirths per 1,000 births, and 28 neonatal deaths per 1,000 live births with variation by country and region. Direct maternal morbidities were associated with each of these outcomes.
CONCLUSIONS: Our findings imply that health programmes in sub-Saharan Africa and South Asia must intensify their efforts to identify and treat maternal morbidities, which affected about one-third of all pregnancies and to prevent associated maternal and neonatal deaths and stillbirths.
TRIAL REGISTRATION: The study is not a clinical trial.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adolescent
Adult
Female
Humans
Infant
Infant, Newborn
Pregnancy
Young Adult
Africa South of the Sahara/epidemiology
Asia/epidemiology
*Infant Mortality
*Maternal Mortality
*Pregnancy Complications/diagnosis/mortality
Pregnancy Outcome
Prospective Studies
Risk Assessment
Risk Factors
*Stillbirth/epidemiology
RevDate: 2024-06-15
CmpDate: 2022-01-07
NCI Imaging Data Commons.
Cancer research, 81(16):4188-4193.
The National Cancer Institute (NCI) Cancer Research Data Commons (CRDC) aims to establish a national cloud-based data science infrastructure. Imaging Data Commons (IDC) is a new component of CRDC supported by the Cancer Moonshot. The goal of IDC is to enable a broad spectrum of cancer researchers, with and without imaging expertise, to easily access and explore the value of deidentified imaging data and to support integrated analyses with nonimaging data. We achieve this goal by colocating versatile imaging collections with cloud-based computing resources and data exploration, visualization, and analysis tools. The IDC pilot was released in October 2020 and is being continuously populated with radiology and histopathology collections. IDC provides access to curated imaging collections, accompanied by documentation, a user forum, and a growing number of analysis use cases that aim to demonstrate the value of a data commons framework applied to cancer imaging research. SIGNIFICANCE: This study introduces NCI Imaging Data Commons, a new repository of the NCI Cancer Research Data Commons, which will support cancer imaging research on the cloud.
Additional Links: PMID-34185678
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34185678,
year = {2021},
author = {Fedorov, A and Longabaugh, WJR and Pot, D and Clunie, DA and Pieper, S and Aerts, HJWL and Homeyer, A and Lewis, R and Akbarzadeh, A and Bontempi, D and Clifford, W and Herrmann, MD and Höfener, H and Octaviano, I and Osborne, C and Paquette, S and Petts, J and Punzo, D and Reyes, M and Schacherer, DP and Tian, M and White, G and Ziegler, E and Shmulevich, I and Pihl, T and Wagner, U and Farahani, K and Kikinis, R},
title = {NCI Imaging Data Commons.},
journal = {Cancer research},
volume = {81},
number = {16},
pages = {4188-4193},
pmid = {34185678},
issn = {1538-7445},
support = {P41 EB015898/EB/NIBIB NIH HHS/United States ; HHSN261201500003C/CA/NCI NIH HHS/United States ; HHSN261201000031C/CA/NCI NIH HHS/United States ; HHSN261201500001C/CA/NCI NIH HHS/United States ; HHSN261201500001G/CA/NCI NIH HHS/United States ; HHSN261201500003I/CA/NCI NIH HHS/United States ; P41 EB028741/EB/NIBIB NIH HHS/United States ; HHSN261201500001W/CA/NCI NIH HHS/United States ; },
mesh = {Biomedical Research/trends ; Cloud Computing ; Computational Biology/methods ; Computer Graphics ; Computer Security ; Data Interpretation, Statistical ; Databases, Factual ; Diagnostic Imaging/*methods/standards ; Humans ; Image Processing, Computer-Assisted ; *National Cancer Institute (U.S.) ; Neoplasms/*diagnostic imaging/*genetics ; Pilot Projects ; Programming Languages ; Radiology/methods/standards ; Reproducibility of Results ; Software ; United States ; User-Computer Interface ; },
abstract = {The National Cancer Institute (NCI) Cancer Research Data Commons (CRDC) aims to establish a national cloud-based data science infrastructure. Imaging Data Commons (IDC) is a new component of CRDC supported by the Cancer Moonshot. The goal of IDC is to enable a broad spectrum of cancer researchers, with and without imaging expertise, to easily access and explore the value of deidentified imaging data and to support integrated analyses with nonimaging data. We achieve this goal by colocating versatile imaging collections with cloud-based computing resources and data exploration, visualization, and analysis tools. The IDC pilot was released in October 2020 and is being continuously populated with radiology and histopathology collections. IDC provides access to curated imaging collections, accompanied by documentation, a user forum, and a growing number of analysis use cases that aim to demonstrate the value of a data commons framework applied to cancer imaging research. SIGNIFICANCE: This study introduces NCI Imaging Data Commons, a new repository of the NCI Cancer Research Data Commons, which will support cancer imaging research on the cloud.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Biomedical Research/trends
Cloud Computing
Computational Biology/methods
Computer Graphics
Computer Security
Data Interpretation, Statistical
Databases, Factual
Diagnostic Imaging/*methods/standards
Humans
Image Processing, Computer-Assisted
*National Cancer Institute (U.S.)
Neoplasms/*diagnostic imaging/*genetics
Pilot Projects
Programming Languages
Radiology/methods/standards
Reproducibility of Results
Software
United States
User-Computer Interface
RevDate: 2022-04-15
CmpDate: 2022-04-15
Circulating tumour DNA reveals genetic traits of patients with intraductal carcinoma of the prostate.
BJU international, 129(3):345-355.
OBJECTIVES: To investigate the genetic alterations of patients with prostate cancer (PCa) with and without intraductal carcinoma of the prostate (IDC-P).
PATIENTS AND METHODS: We performed targeted sequencing of plasma cell-free DNA on 161 patients with prostate adenocarcinoma (PAC) with IDC-P and 84 without IDC-P. Genomic alterations were compared between these two groups. The association between genetic alterations and patients' survival outcomes was also explored.
RESULTS: We identified that 29.8% (48/161) and 21.4% (18/84) of patients with and without IDC-P harboured genomic alterations in DNA repair pathways, respectively (P = 0.210). Pathogenic germline DNA repair alterations were frequently detected in IDC-P carriers compared to IDC-P non-carriers (11.8% [19/161] vs 2.4% [two of 84], P = 0.024). Germline BReast CAncer type 2 susceptibility protein (BRCA2) and somatic cyclin-dependent kinase 12 (CDK12) defects were specifically identified in IDC-P carriers relative to PAC (BRCA2: 8.7% [14/161] vs 0% and CDK12: 6.8% [11/161] vs 1.2% [one of 84]). Patients with IDC-P had a distinct androgen receptor (AR) pathway alteration, characterised by an enrichment of nuclear receptor corepressor 2 (NCOR2) mutations compared with patients with pure PAC (21.1% [34/161] vs 6.0% [five of 84], P = 0.004). Increased AR alterations were detected in patients harbouring tumours with an IDC-P proportion of ≥10% vs those with an IDC-P proportion of <10% (6.4% [five of 78] vs 18.1% [15/83], P = 0.045). For IDC-P carriers, tumour protein p53 (TP53) mutation was associated with shorter castration-resistant-free survival (median 10.9 vs 28.9 months, P = 0.026), and BRCA2 alteration was related to rapid prostate-specific antigen progression for those receiving abiraterone treatment (median 9.1 vs 11.9 months, P = 0.036).
CONCLUSION: Our findings provide genomic evidence explaining the aggressive phenotype of tumours with IDC-P, highlighting the potential therapeutic strategies for this patient population.
Additional Links: PMID-34185954
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34185954,
year = {2022},
author = {Zhao, J and Sun, G and Zhu, S and Dai, J and Chen, J and Zhang, M and Ni, Y and Zhang, H and Shen, P and Zhao, X and Zhang, B and Pan, X and Nie, L and Yin, X and Liang, J and Zhang, X and Wang, Z and Zhu, X and Liao, B and Liu, Z and Armstrong, CM and Gao, AC and Huang, H and Chen, N and Zeng, H},
title = {Circulating tumour DNA reveals genetic traits of patients with intraductal carcinoma of the prostate.},
journal = {BJU international},
volume = {129},
number = {3},
pages = {345-355},
doi = {10.1111/bju.15530},
pmid = {34185954},
issn = {1464-410X},
mesh = {*Carcinoma, Intraductal, Noninfiltrating/genetics/pathology ; *Circulating Tumor DNA/genetics ; Humans ; Male ; Phenotype ; Prostate/pathology ; *Prostatic Neoplasms/pathology ; },
abstract = {OBJECTIVES: To investigate the genetic alterations of patients with prostate cancer (PCa) with and without intraductal carcinoma of the prostate (IDC-P).
PATIENTS AND METHODS: We performed targeted sequencing of plasma cell-free DNA on 161 patients with prostate adenocarcinoma (PAC) with IDC-P and 84 without IDC-P. Genomic alterations were compared between these two groups. The association between genetic alterations and patients' survival outcomes was also explored.
RESULTS: We identified that 29.8% (48/161) and 21.4% (18/84) of patients with and without IDC-P harboured genomic alterations in DNA repair pathways, respectively (P = 0.210). Pathogenic germline DNA repair alterations were frequently detected in IDC-P carriers compared to IDC-P non-carriers (11.8% [19/161] vs 2.4% [two of 84], P = 0.024). Germline BReast CAncer type 2 susceptibility protein (BRCA2) and somatic cyclin-dependent kinase 12 (CDK12) defects were specifically identified in IDC-P carriers relative to PAC (BRCA2: 8.7% [14/161] vs 0% and CDK12: 6.8% [11/161] vs 1.2% [one of 84]). Patients with IDC-P had a distinct androgen receptor (AR) pathway alteration, characterised by an enrichment of nuclear receptor corepressor 2 (NCOR2) mutations compared with patients with pure PAC (21.1% [34/161] vs 6.0% [five of 84], P = 0.004). Increased AR alterations were detected in patients harbouring tumours with an IDC-P proportion of ≥10% vs those with an IDC-P proportion of <10% (6.4% [five of 78] vs 18.1% [15/83], P = 0.045). For IDC-P carriers, tumour protein p53 (TP53) mutation was associated with shorter castration-resistant-free survival (median 10.9 vs 28.9 months, P = 0.026), and BRCA2 alteration was related to rapid prostate-specific antigen progression for those receiving abiraterone treatment (median 9.1 vs 11.9 months, P = 0.036).
CONCLUSION: Our findings provide genomic evidence explaining the aggressive phenotype of tumours with IDC-P, highlighting the potential therapeutic strategies for this patient population.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Carcinoma, Intraductal, Noninfiltrating/genetics/pathology
*Circulating Tumor DNA/genetics
Humans
Male
Phenotype
Prostate/pathology
*Prostatic Neoplasms/pathology
RevDate: 2025-01-03
CmpDate: 2021-07-08
COVID-19 positivity associated with traumatic stress response to childbirth and no visitors and infant separation in the hospital.
Scientific reports, 11(1):13535.
As the novel coronavirus (COVID-19) has spread globally, a significant portion of pregnant and delivering women were infected with COVID-19. While emerging studies examined birth outcomes in COVID-19 positive women, knowledge of the psychological experience of childbirth and maternal wellness remains lacking. This matched-control survey-based study included a sample of women recruited during the first wave of the pandemic in the US who gave birth in the previous six months. Women reporting confirmed/suspected COVID-19 (n = 68) during pregnancy or childbirth were matched on background factors with women reporting COVID-19 negativity (n = 2,276). We found nearly 50% of COVID positive women endorsed acute traumatic stress symptoms at a clinical level in response to childbirth. This group was more than twice as likely to endorse acute stress and to have no visitors during maternity hospitalization than COVID negative women; they were also less likely to room-in with newborns. The COVID positive group reported higher levels of pain in delivery, lower newborn weights, and more infant admission to neonatal intensive care units. Our findings suggest COVID-19 affected populations are at increased risk for traumatic childbirth and associated risk for psychiatric morbidity. Attention to delivering women's wellbeing is warranted during the pandemic.
Additional Links: PMID-34188137
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34188137,
year = {2021},
author = {Mayopoulos, GA and Ein-Dor, T and Li, KG and Chan, SJ and Dekel, S},
title = {COVID-19 positivity associated with traumatic stress response to childbirth and no visitors and infant separation in the hospital.},
journal = {Scientific reports},
volume = {11},
number = {1},
pages = {13535},
pmid = {34188137},
issn = {2045-2322},
support = {R21 HD100817/HD/NICHD NIH HHS/United States ; R21HD100817//National Institute of Child Health and Human Development/ ; },
mesh = {Adult ; Anxiety/diagnosis ; Birth Weight ; COVID-19/diagnosis/*psychology/virology ; Female ; Hospitals ; Humans ; Infant, Newborn ; Intensive Care Units, Neonatal ; Pain/pathology ; Parturition/*psychology ; Patient Admission/statistics & numerical data ; Pregnancy ; Pregnant People/*psychology ; SARS-CoV-2/isolation & purification ; Stress Disorders, Post-Traumatic/*diagnosis ; Stress, Psychological ; Surveys and Questionnaires ; },
abstract = {As the novel coronavirus (COVID-19) has spread globally, a significant portion of pregnant and delivering women were infected with COVID-19. While emerging studies examined birth outcomes in COVID-19 positive women, knowledge of the psychological experience of childbirth and maternal wellness remains lacking. This matched-control survey-based study included a sample of women recruited during the first wave of the pandemic in the US who gave birth in the previous six months. Women reporting confirmed/suspected COVID-19 (n = 68) during pregnancy or childbirth were matched on background factors with women reporting COVID-19 negativity (n = 2,276). We found nearly 50% of COVID positive women endorsed acute traumatic stress symptoms at a clinical level in response to childbirth. This group was more than twice as likely to endorse acute stress and to have no visitors during maternity hospitalization than COVID negative women; they were also less likely to room-in with newborns. The COVID positive group reported higher levels of pain in delivery, lower newborn weights, and more infant admission to neonatal intensive care units. Our findings suggest COVID-19 affected populations are at increased risk for traumatic childbirth and associated risk for psychiatric morbidity. Attention to delivering women's wellbeing is warranted during the pandemic.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Anxiety/diagnosis
Birth Weight
COVID-19/diagnosis/*psychology/virology
Female
Hospitals
Humans
Infant, Newborn
Intensive Care Units, Neonatal
Pain/pathology
Parturition/*psychology
Patient Admission/statistics & numerical data
Pregnancy
Pregnant People/*psychology
SARS-CoV-2/isolation & purification
Stress Disorders, Post-Traumatic/*diagnosis
Stress, Psychological
Surveys and Questionnaires
RevDate: 2021-07-02
Prevalence of focal incidental breast uptake on FDG-PET/CT and risk of malignancy: a systematic review and meta-analysis.
European journal of hybrid imaging, 3(1):16.
BACKGROUND: FDG-PET/CT is increasingly used for oncologic and inflammatory diseases. Focal incidental FDG uptake occurs rarely in breast tissue but has often significant consequences. This study aimed to systematically review literature regarding focal incidental breast uptake (FIBU) on FDG-PET/CT in order to yield an update on the prevalence and risk of malignancy for FIBU.
METHODS: A systematic search for relevant articles published between 2012 and 2018 was performed through MEDLINE, Embase, and Cochrane databases. Studies addressing the detection of FIBU in patients without a previous history of breast malignancy were included. The QUADAS-2 was used for quality assessment, and eligible data were pooled using a fixed-effects model. I[2] was calculated for the heterogeneity between studies.
RESULTS: Eight studies containing 180,002 scans were included in the systematic review. The median prevalence of FIBU for both genders was 0.52% (range 0.18-22.5%). Prevalence for women was mentioned separately in five studies and varied from 0.51 to 23.5%. One study reporting a high prevalence was based on patients being staged for known malignancy, and the word "breast" was used in the search, which may have caused selection bias. Data from four studies were eligible for meta-analysis. A high degree of heterogeneity was observed for prevalence data (I[2] of 97.5%), while moderate heterogeneity was observed for data on malignancy risk assessment (I[2] of 62.8%). The pooled prevalence of FIBU in women was 0.61% (range 0.56-0.66%), and the pooled prevalence of malignancy of FIBUs was 38.7% (range 34.4-43.0%). The most commonly detected malignancy was invasive ductal carcinoma.
CONCLUSION: FIBU occurs rarely on FDG-PET/CT for female patients but yields a high risk of malignancy according to the results of published papers. Therefore, it should be considered relevant to further elucidate patients with incidentally detected FDG uptake in breast in clinical practice.
Additional Links: PMID-34191158
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34191158,
year = {2019},
author = {Aarstad, EM and Nordhaug, P and Naghavi-Behzad, M and Larsen, LB and Gerke, O and Hildebrandt, MG},
title = {Prevalence of focal incidental breast uptake on FDG-PET/CT and risk of malignancy: a systematic review and meta-analysis.},
journal = {European journal of hybrid imaging},
volume = {3},
number = {1},
pages = {16},
pmid = {34191158},
issn = {2510-3636},
support = {//Danmarks Frie Forskningsfond/ ; //Syddansk Universitet/ ; },
abstract = {BACKGROUND: FDG-PET/CT is increasingly used for oncologic and inflammatory diseases. Focal incidental FDG uptake occurs rarely in breast tissue but has often significant consequences. This study aimed to systematically review literature regarding focal incidental breast uptake (FIBU) on FDG-PET/CT in order to yield an update on the prevalence and risk of malignancy for FIBU.
METHODS: A systematic search for relevant articles published between 2012 and 2018 was performed through MEDLINE, Embase, and Cochrane databases. Studies addressing the detection of FIBU in patients without a previous history of breast malignancy were included. The QUADAS-2 was used for quality assessment, and eligible data were pooled using a fixed-effects model. I[2] was calculated for the heterogeneity between studies.
RESULTS: Eight studies containing 180,002 scans were included in the systematic review. The median prevalence of FIBU for both genders was 0.52% (range 0.18-22.5%). Prevalence for women was mentioned separately in five studies and varied from 0.51 to 23.5%. One study reporting a high prevalence was based on patients being staged for known malignancy, and the word "breast" was used in the search, which may have caused selection bias. Data from four studies were eligible for meta-analysis. A high degree of heterogeneity was observed for prevalence data (I[2] of 97.5%), while moderate heterogeneity was observed for data on malignancy risk assessment (I[2] of 62.8%). The pooled prevalence of FIBU in women was 0.61% (range 0.56-0.66%), and the pooled prevalence of malignancy of FIBUs was 38.7% (range 34.4-43.0%). The most commonly detected malignancy was invasive ductal carcinoma.
CONCLUSION: FIBU occurs rarely on FDG-PET/CT for female patients but yields a high risk of malignancy according to the results of published papers. Therefore, it should be considered relevant to further elucidate patients with incidentally detected FDG uptake in breast in clinical practice.},
}
RevDate: 2021-09-02
CmpDate: 2021-09-02
The Internet addiction test: Psychometric properties, socio-demographic risk factors and addictive co-morbidities in a large adult sample.
Addictive behaviors, 122:107023.
The Internet Addiction Test (IAT) (Young, 1998) is one of the most utilized diagnostic instruments to evaluate internet addiction. Despite the wide use of IAT in research and clinical settings, there is lack of an empirical validation of this scale among a largescale adult population. The present study aimed to: (1) investigate the psychometric properties of a Hebrew version of the IAT among large-scale Israeli adult sample. (2) Assess the socio-demographic characteristics of individuals who suffer from IA. (3) Assess the co-morbidity of IA in relation to substance and behavioral addictions. A cross sectional study was conducted, by constructing a representative sample (N = 4035) of the Jewish adult (18-70 y/o, M = 40.5, SD = 14.5) population in Israel. Participants responded an online survey, that measured IAT, socio-demographic characteristics, substance and behavioral addictions. Results showed that two-factor model (Emotional and Cognitive Preoccupation with the Internet and Loss of Control and Interference with Daily Life) has good psychometric properties and fits the data well. Young age, not being married (Risk Ratio [RR] = 1.98, 95% CI [1.51-2.63]), and having a low socio-economic status (RR = 1.41, 95% CI [1.05-1.90]) were found to be associated with IA. Drug (RR = 4.50, 95% CI [2.89-7.01]) and alcohol (RR = 3.54, 95% CI [1.50-5.42]) use disorders were associated with IA. High co-morbidity between behavioral addictions and IA was also found (RR = 15.24, 95% CI [11.17-20.78]). Overall, results show that the Hebrew version of the IAT is a valid and reliable instrument, and provide a comprehensive picture of IA prevalence and profile in adult Israeli sample.
Additional Links: PMID-34198053
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34198053,
year = {2021},
author = {Sela, Y and Bar-Or, RL and Kor, A and Lev-Ran, S},
title = {The Internet addiction test: Psychometric properties, socio-demographic risk factors and addictive co-morbidities in a large adult sample.},
journal = {Addictive behaviors},
volume = {122},
number = {},
pages = {107023},
doi = {10.1016/j.addbeh.2021.107023},
pmid = {34198053},
issn = {1873-6327},
mesh = {Adult ; *Behavior, Addictive/epidemiology ; Cross-Sectional Studies ; Humans ; Internet ; *Internet Addiction Disorder ; Prevalence ; Psychometrics ; Reproducibility of Results ; Risk Factors ; Surveys and Questionnaires ; },
abstract = {The Internet Addiction Test (IAT) (Young, 1998) is one of the most utilized diagnostic instruments to evaluate internet addiction. Despite the wide use of IAT in research and clinical settings, there is lack of an empirical validation of this scale among a largescale adult population. The present study aimed to: (1) investigate the psychometric properties of a Hebrew version of the IAT among large-scale Israeli adult sample. (2) Assess the socio-demographic characteristics of individuals who suffer from IA. (3) Assess the co-morbidity of IA in relation to substance and behavioral addictions. A cross sectional study was conducted, by constructing a representative sample (N = 4035) of the Jewish adult (18-70 y/o, M = 40.5, SD = 14.5) population in Israel. Participants responded an online survey, that measured IAT, socio-demographic characteristics, substance and behavioral addictions. Results showed that two-factor model (Emotional and Cognitive Preoccupation with the Internet and Loss of Control and Interference with Daily Life) has good psychometric properties and fits the data well. Young age, not being married (Risk Ratio [RR] = 1.98, 95% CI [1.51-2.63]), and having a low socio-economic status (RR = 1.41, 95% CI [1.05-1.90]) were found to be associated with IA. Drug (RR = 4.50, 95% CI [2.89-7.01]) and alcohol (RR = 3.54, 95% CI [1.50-5.42]) use disorders were associated with IA. High co-morbidity between behavioral addictions and IA was also found (RR = 15.24, 95% CI [11.17-20.78]). Overall, results show that the Hebrew version of the IAT is a valid and reliable instrument, and provide a comprehensive picture of IA prevalence and profile in adult Israeli sample.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
*Behavior, Addictive/epidemiology
Cross-Sectional Studies
Humans
Internet
*Internet Addiction Disorder
Prevalence
Psychometrics
Reproducibility of Results
Risk Factors
Surveys and Questionnaires
RevDate: 2021-07-14
CmpDate: 2021-07-14
A Signature of Four Circulating microRNAs as Potential Biomarkers for Diagnosing Early-Stage Breast Cancer.
International journal of molecular sciences, 22(11):.
Breast cancer (BC) is the most predominant type of cancer among women. The aim of this study is to find new biomarkers that can help in early detection of BC, especially for those who are too young to be screened using mammography as per guidelines. Using microRNA microarray, we previously showed dysregulation of 74 microRNAs in tumors from early BC patients as compared with normal adjacent tissues, which we were interested in studying in blood circulation. In this study, we investigated the expression of 12 microRNA (miR-21/miR-155/miR-23a/miR-130a/miR-145/miR-425-5p/miR-139-5p/miR-451/miR-195/miR-125b/miR-100, and miR-182) in the plasma of 41 newly diagnosed Lebanese BC patients with early invasive ductal carcinoma as compared with 32 healthy controls. Total RNA was extracted from plasma, and expression levels of miRNA of interest were measured using RT-qPCR followed by statistical analysis; miR-21, miR-155, miR-23a, miR-130a, miR-145, miR-425-5p, and miR-139-5p were significantly upregulated and miR-451 was significantly downregulated, in the plasma of BC patients as compared with healthy controls. The positively correlated miR-23a, miR-21, and miR-130a had a high diagnostic accuracy (86%). Importantly, the combination of miR-145/miR-425-5p/miR-139-5p/miR-130a scored the highest diagnostic accuracy of 95% with AUC = 0.97 (sensitivity 97% and specificity 91%). MicroRNAs are promising non-invasive diagnostic biomarkers for early-stage BC with the panel of miR-145/miR-425-5p/miR-139-5p/miR-130a having the highest diagnostic accuracy.
Additional Links: PMID-34204158
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34204158,
year = {2021},
author = {Itani, MM and Nassar, FJ and Tfayli, AH and Talhouk, RS and Chamandi, GK and Itani, ARS and Makoukji, J and Boustany, RN and Hou, L and Zgheib, NK and Nasr, RR},
title = {A Signature of Four Circulating microRNAs as Potential Biomarkers for Diagnosing Early-Stage Breast Cancer.},
journal = {International journal of molecular sciences},
volume = {22},
number = {11},
pages = {},
pmid = {34204158},
issn = {1422-0067},
support = {R. NASR Grant//Lebanese National Council for Scientific Research (CNRS-L)/ ; R NASR proposal//Medical Practice Plan, AUB/ ; R Nasr proposal//Northwestern University Kiphart award/ ; },
mesh = {Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor/*blood/*genetics ; Breast Neoplasms/*blood/*diagnosis/genetics/pathology ; Circulating MicroRNA/*blood/*genetics ; Female ; *Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Humans ; Middle Aged ; Neoplasm Staging ; Statistics, Nonparametric ; Young Adult ; },
abstract = {Breast cancer (BC) is the most predominant type of cancer among women. The aim of this study is to find new biomarkers that can help in early detection of BC, especially for those who are too young to be screened using mammography as per guidelines. Using microRNA microarray, we previously showed dysregulation of 74 microRNAs in tumors from early BC patients as compared with normal adjacent tissues, which we were interested in studying in blood circulation. In this study, we investigated the expression of 12 microRNA (miR-21/miR-155/miR-23a/miR-130a/miR-145/miR-425-5p/miR-139-5p/miR-451/miR-195/miR-125b/miR-100, and miR-182) in the plasma of 41 newly diagnosed Lebanese BC patients with early invasive ductal carcinoma as compared with 32 healthy controls. Total RNA was extracted from plasma, and expression levels of miRNA of interest were measured using RT-qPCR followed by statistical analysis; miR-21, miR-155, miR-23a, miR-130a, miR-145, miR-425-5p, and miR-139-5p were significantly upregulated and miR-451 was significantly downregulated, in the plasma of BC patients as compared with healthy controls. The positively correlated miR-23a, miR-21, and miR-130a had a high diagnostic accuracy (86%). Importantly, the combination of miR-145/miR-425-5p/miR-139-5p/miR-130a scored the highest diagnostic accuracy of 95% with AUC = 0.97 (sensitivity 97% and specificity 91%). MicroRNAs are promising non-invasive diagnostic biomarkers for early-stage BC with the panel of miR-145/miR-425-5p/miR-139-5p/miR-130a having the highest diagnostic accuracy.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Aged, 80 and over
Biomarkers, Tumor/*blood/*genetics
Breast Neoplasms/*blood/*diagnosis/genetics/pathology
Circulating MicroRNA/*blood/*genetics
Female
*Gene Expression Profiling
Gene Expression Regulation, Neoplastic
Humans
Middle Aged
Neoplasm Staging
Statistics, Nonparametric
Young Adult
RevDate: 2026-04-14
CmpDate: 2022-03-03
Literature review and case report of bilateral intracystic papillary carcinoma associated with an invasive ductal carcinoma in a male breast.
Breast disease, 41(1):5-13.
Intracystic papillary carcinoma (IPC) is a rare tumor with good prognosis that occurs in only 5% to 7.5% of male breast cancer. We report a case of a 46-year-old man who presented a brown nipple discharge a few months ago. He had a bilateral IPC and an invasive ductal carcinoma on the right breast. A double mastectomy was then performed with a bilateral sentinel lymph node biopsy, and he received chemotherapy, radiotherapy, and hormonotherapy. Two years after the diagnosis, the patient recovered and was free of recurrence. Considering the scarcity of this tumor type, we conducted a systematic literature review on the PubMed of all the cases of IPC in men. The clinical presentation, imaging, and treatment of the 43 case reports from the 41 articles selected were described. Furthermore, no clear guidelines for IPC management are available. Conservative surgery should also be preferred, and a sentinel lymph node biopsy should be performed systematically. Moreover, radiotherapy should be proposed in the case of conservative surgery, and hormone therapy could be proposed in the case of invasive IPC or IPC associated with a ductal carcinoma in situ.
Additional Links: PMID-34219706
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34219706,
year = {2022},
author = {Avau, F and Chintinne, M and Baudry, S and Buxant, F},
title = {Literature review and case report of bilateral intracystic papillary carcinoma associated with an invasive ductal carcinoma in a male breast.},
journal = {Breast disease},
volume = {41},
number = {1},
pages = {5-13},
doi = {10.3233/BD-210001},
pmid = {34219706},
issn = {1558-1551},
mesh = {Antineoplastic Agents/therapeutic use ; Breast Neoplasms, Male/*complications/drug therapy/*secondary/surgery ; Carcinoma, Intraductal, Noninfiltrating/complications/drug therapy/*secondary ; Carcinoma, Papillary/classification/*diagnostic imaging/drug therapy ; Humans ; Male ; Mammography ; Mastectomy ; Middle Aged ; Sentinel Lymph Node Biopsy ; },
abstract = {Intracystic papillary carcinoma (IPC) is a rare tumor with good prognosis that occurs in only 5% to 7.5% of male breast cancer. We report a case of a 46-year-old man who presented a brown nipple discharge a few months ago. He had a bilateral IPC and an invasive ductal carcinoma on the right breast. A double mastectomy was then performed with a bilateral sentinel lymph node biopsy, and he received chemotherapy, radiotherapy, and hormonotherapy. Two years after the diagnosis, the patient recovered and was free of recurrence. Considering the scarcity of this tumor type, we conducted a systematic literature review on the PubMed of all the cases of IPC in men. The clinical presentation, imaging, and treatment of the 43 case reports from the 41 articles selected were described. Furthermore, no clear guidelines for IPC management are available. Conservative surgery should also be preferred, and a sentinel lymph node biopsy should be performed systematically. Moreover, radiotherapy should be proposed in the case of conservative surgery, and hormone therapy could be proposed in the case of invasive IPC or IPC associated with a ductal carcinoma in situ.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Antineoplastic Agents/therapeutic use
Breast Neoplasms, Male/*complications/drug therapy/*secondary/surgery
Carcinoma, Intraductal, Noninfiltrating/complications/drug therapy/*secondary
Carcinoma, Papillary/classification/*diagnostic imaging/drug therapy
Humans
Male
Mammography
Mastectomy
Middle Aged
Sentinel Lymph Node Biopsy
RevDate: 2022-01-17
CmpDate: 2022-01-17
Copy number variation in triple negative breast cancer samples associated with lymph node metastasis.
Neoplasia (New York, N.Y.), 23(8):743-753.
Triple negative breast cancer (TNBC) is a highly metastatic and aggressive subtype of breast cancer and cases presenting with lymph node involvement have worse outcomes. This study aimed to determine the regions of copy number variation (CNV) associated with lymph node metastasis in TNBC patients. CNV analyses were performed in a study cohort of 23 invasive ductal carcinomas (IDCs), 12 lymph node metastases (LNmets), and 7 normal adjacent tissues (NATs); as well as in an independent cohort containing 70 TNBC IDCs and the same 7 NATs. CNV-associated genes were analyzed using GO-enrichment and Pathway analysis. The prognostic role for genes showing CNV-based changes in messenger RNA expression was determined using the Kaplan-Meier plotter database. For the IDCs, there were a number of variations that were common in both the study and independent cohorts in the amplified regions of 1q, 8q, 19 (p and q), 2p, 5p and the deleted regions in 8p followed by 5q, and 19p. The most frequently amplified regions in the LNmets of the study cohort were 4q28.3, 2p, 3q24, 1q21.2, 10p, 12p11.1, 8q, 20p11.22-20p11.21, 21q22.13, 6p22.1 and the most frequently deleted regions were in 1p36.23, 4q21.1 and 5q. A total of 686 (441 amplified and 245 deleted) genes were associated with LNmets. The LNmet-associated genes were highly enriched for "regulation of complement activation," "regulation of protein activation cascade," "regulation of humoral immune response," "oxytocin signalling pathway," and "TRAIL binding" pathways. Moreover, 6/686 LNmet-associated genes showed CNV-based changes in their mRNA expression of which, high expression of ASPM and KIF14 was significantly associated with worse relapse-free survival. This study has identified several CNV regions in TNBC that could play a major role in metastasis to the lymph node.
Additional Links: PMID-34225099
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34225099,
year = {2021},
author = {Pariyar, M and Johns, A and Thorne, RF and Scott, RJ and Avery-Kiejda, KA},
title = {Copy number variation in triple negative breast cancer samples associated with lymph node metastasis.},
journal = {Neoplasia (New York, N.Y.)},
volume = {23},
number = {8},
pages = {743-753},
pmid = {34225099},
issn = {1476-5586},
mesh = {*Biomarkers, Tumor ; Chromosome Mapping ; Computational Biology/methods ; *DNA Copy Number Variations ; DNA Methylation ; Disease Progression ; Female ; Gene Expression Profiling ; Gene Ontology ; Genetic Association Studies ; Genetic Predisposition to Disease ; Humans ; Kaplan-Meier Estimate ; Lymph Nodes/*pathology ; Lymphatic Metastasis ; Molecular Sequence Annotation ; Neoplasm Staging ; Prognosis ; Triple Negative Breast Neoplasms/*etiology/mortality/*pathology ; },
abstract = {Triple negative breast cancer (TNBC) is a highly metastatic and aggressive subtype of breast cancer and cases presenting with lymph node involvement have worse outcomes. This study aimed to determine the regions of copy number variation (CNV) associated with lymph node metastasis in TNBC patients. CNV analyses were performed in a study cohort of 23 invasive ductal carcinomas (IDCs), 12 lymph node metastases (LNmets), and 7 normal adjacent tissues (NATs); as well as in an independent cohort containing 70 TNBC IDCs and the same 7 NATs. CNV-associated genes were analyzed using GO-enrichment and Pathway analysis. The prognostic role for genes showing CNV-based changes in messenger RNA expression was determined using the Kaplan-Meier plotter database. For the IDCs, there were a number of variations that were common in both the study and independent cohorts in the amplified regions of 1q, 8q, 19 (p and q), 2p, 5p and the deleted regions in 8p followed by 5q, and 19p. The most frequently amplified regions in the LNmets of the study cohort were 4q28.3, 2p, 3q24, 1q21.2, 10p, 12p11.1, 8q, 20p11.22-20p11.21, 21q22.13, 6p22.1 and the most frequently deleted regions were in 1p36.23, 4q21.1 and 5q. A total of 686 (441 amplified and 245 deleted) genes were associated with LNmets. The LNmet-associated genes were highly enriched for "regulation of complement activation," "regulation of protein activation cascade," "regulation of humoral immune response," "oxytocin signalling pathway," and "TRAIL binding" pathways. Moreover, 6/686 LNmet-associated genes showed CNV-based changes in their mRNA expression of which, high expression of ASPM and KIF14 was significantly associated with worse relapse-free survival. This study has identified several CNV regions in TNBC that could play a major role in metastasis to the lymph node.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Biomarkers, Tumor
Chromosome Mapping
Computational Biology/methods
*DNA Copy Number Variations
DNA Methylation
Disease Progression
Female
Gene Expression Profiling
Gene Ontology
Genetic Association Studies
Genetic Predisposition to Disease
Humans
Kaplan-Meier Estimate
Lymph Nodes/*pathology
Lymphatic Metastasis
Molecular Sequence Annotation
Neoplasm Staging
Prognosis
Triple Negative Breast Neoplasms/*etiology/mortality/*pathology
RevDate: 2024-04-02
Preexisting vs. de novo antibodies against SARS-CoV-2 in individuals without or with virus infection: impact on antibody therapy, vaccine research and serological testing.
Translational medicine communications, 6(1):13.
The causative agent of the ongoing pandemic in the world is SARS-CoV-2. The research on SARS-CoV-2 has progressed with lightning speed on various fronts, including clinical research and treatment, virology, epidemiology, drug development, and vaccine research. Recent studies reported that sera from healthy individuals, who were confirmed negative for SARS-CoV-2 by RT-PCR method, tested positive for antibodies against spike and nucleocapsid proteins of SARS-CoV-2. Further, such antibodies also exhibited neutralizing activity against the virus. These observations have prompted us to prepare a commentary on this topic. While the preexisting antibodies are likely to protect against SARS-CoV-2 infection, they may also complicate serological testing results. Another unknown is the influence of preexisting antibodies on immune responses in individuals receiving vaccines against SARS-CoV-2. The commentary identifies the potential limitations with the serological tests based on spike and nucleocapsid proteins as these tests may overestimate the seroprevalence due to cross-reactive antibodies. The inclusion of tests specific to SARS-CoV-2 (such as RBD of spike protein) could overcome these limitations.
Additional Links: PMID-34230895
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34230895,
year = {2021},
author = {Muthumani, K and Xu, Z and Jeong, M and Maslow, JN and Kalyanaraman, VS and Srinivasan, A},
title = {Preexisting vs. de novo antibodies against SARS-CoV-2 in individuals without or with virus infection: impact on antibody therapy, vaccine research and serological testing.},
journal = {Translational medicine communications},
volume = {6},
number = {1},
pages = {13},
pmid = {34230895},
issn = {2396-832X},
abstract = {The causative agent of the ongoing pandemic in the world is SARS-CoV-2. The research on SARS-CoV-2 has progressed with lightning speed on various fronts, including clinical research and treatment, virology, epidemiology, drug development, and vaccine research. Recent studies reported that sera from healthy individuals, who were confirmed negative for SARS-CoV-2 by RT-PCR method, tested positive for antibodies against spike and nucleocapsid proteins of SARS-CoV-2. Further, such antibodies also exhibited neutralizing activity against the virus. These observations have prompted us to prepare a commentary on this topic. While the preexisting antibodies are likely to protect against SARS-CoV-2 infection, they may also complicate serological testing results. Another unknown is the influence of preexisting antibodies on immune responses in individuals receiving vaccines against SARS-CoV-2. The commentary identifies the potential limitations with the serological tests based on spike and nucleocapsid proteins as these tests may overestimate the seroprevalence due to cross-reactive antibodies. The inclusion of tests specific to SARS-CoV-2 (such as RBD of spike protein) could overcome these limitations.},
}
RevDate: 2023-11-07
CmpDate: 2021-11-02
Molecular and cellular characterization of two patient-derived ductal carcinoma in situ (DCIS) cell lines, ETCC-006 and ETCC-010.
BMC cancer, 21(1):790.
BACKGROUND: Currently it is unclear how in situ breast cancer progresses to invasive disease; therefore, a better understanding of the events that occur during the transition to invasive carcinoma is warranted. Here we have conducted a detailed molecular and cellular characterization of two, patient-derived, ductal carcinoma in situ (DCIS) cell lines, ETCC-006 and ETCC-010.
METHODS: Human DCIS cell lines, ETCC-006 and ETCC-010, were compared against a panel of cell lines including the immortalized, breast epithelial cell line, MCF10A, breast cancer cell lines, MCF7 and MDA-MB-231, and another DCIS line, MCF10DCIS.com. Cell morphology, hormone and HER2/ERBB2 receptor status, cell proliferation, survival, migration, anchorage-independent growth, indicators of EMT, cell signalling pathways and cell cycle proteins were examined using immunostaining, immunoblots, and quantitative, reverse transcriptase PCR (qRT-PCR), along with clonogenic, wound-closure and soft agar assays. RNA sequencing (RNAseq) was used to provide a transcriptomic profile.
RESULTS: ETCC-006 and ETCC-010 cells displayed notable differences to another DCIS cell line, MCF10DCIS.com, in terms of morphology, steroid-receptor/HER status and markers of EMT. The ETCC cell lines lack ER/PR and HER, form colonies in clonogenic assays, have migratory capacity and are capable of anchorage-independent growth. Despite being isogenic, less than 30% of differentially expressed transcripts overlapped between the two lines, with enrichment in pathways involving receptor tyrosine kinases and DNA replication/cell cycle programs and in gene sets responsible for extracellular matrix organisation and ion transport.
CONCLUSIONS: For the first time, we provide a molecular and cellular characterization of two, patient-derived DCIS cell lines, ETCC-006 and ETCC-010, facilitating future investigations into the molecular basis of DCIS to invasive ductal carcinoma transition.
Additional Links: PMID-34238275
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34238275,
year = {2021},
author = {Samson, J and Derlipanska, M and Zaheed, O and Dean, K},
title = {Molecular and cellular characterization of two patient-derived ductal carcinoma in situ (DCIS) cell lines, ETCC-006 and ETCC-010.},
journal = {BMC cancer},
volume = {21},
number = {1},
pages = {790},
pmid = {34238275},
issn = {1471-2407},
mesh = {Carcinoma, Intraductal, Noninfiltrating/*genetics/pathology ; Cell Line, Tumor ; Cell Proliferation ; Female ; Humans ; },
abstract = {BACKGROUND: Currently it is unclear how in situ breast cancer progresses to invasive disease; therefore, a better understanding of the events that occur during the transition to invasive carcinoma is warranted. Here we have conducted a detailed molecular and cellular characterization of two, patient-derived, ductal carcinoma in situ (DCIS) cell lines, ETCC-006 and ETCC-010.
METHODS: Human DCIS cell lines, ETCC-006 and ETCC-010, were compared against a panel of cell lines including the immortalized, breast epithelial cell line, MCF10A, breast cancer cell lines, MCF7 and MDA-MB-231, and another DCIS line, MCF10DCIS.com. Cell morphology, hormone and HER2/ERBB2 receptor status, cell proliferation, survival, migration, anchorage-independent growth, indicators of EMT, cell signalling pathways and cell cycle proteins were examined using immunostaining, immunoblots, and quantitative, reverse transcriptase PCR (qRT-PCR), along with clonogenic, wound-closure and soft agar assays. RNA sequencing (RNAseq) was used to provide a transcriptomic profile.
RESULTS: ETCC-006 and ETCC-010 cells displayed notable differences to another DCIS cell line, MCF10DCIS.com, in terms of morphology, steroid-receptor/HER status and markers of EMT. The ETCC cell lines lack ER/PR and HER, form colonies in clonogenic assays, have migratory capacity and are capable of anchorage-independent growth. Despite being isogenic, less than 30% of differentially expressed transcripts overlapped between the two lines, with enrichment in pathways involving receptor tyrosine kinases and DNA replication/cell cycle programs and in gene sets responsible for extracellular matrix organisation and ion transport.
CONCLUSIONS: For the first time, we provide a molecular and cellular characterization of two, patient-derived DCIS cell lines, ETCC-006 and ETCC-010, facilitating future investigations into the molecular basis of DCIS to invasive ductal carcinoma transition.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Carcinoma, Intraductal, Noninfiltrating/*genetics/pathology
Cell Line, Tumor
Cell Proliferation
Female
Humans
RevDate: 2024-07-24
CmpDate: 2024-07-24
Predictions from algorithmic modeling result in better decisions than from data modeling for soybean iron deficiency chlorosis.
PloS one, 16(7):e0240948.
In soybean variety development and genetic improvement projects, iron deficiency chlorosis (IDC) is visually assessed as an ordinal response variable. Linear Mixed Models for Genomic Prediction (GP) have been developed, compared, and used to select continuous plant traits such as yield, height, and maturity, but can be inappropriate for ordinal traits. Generalized Linear Mixed Models have been developed for GP of ordinal response variables. However, neither approach addresses the most important questions for cultivar development and genetic improvement: How frequently are the 'wrong' genotypes retained, and how often are the 'correct' genotypes discarded? The research objective reported herein was to compare outcomes from four data modeling and six algorithmic modeling GP methods applied to IDC using decision metrics appropriate for variety development and genetic improvement projects. Appropriate metrics for decision making consist of specificity, sensitivity, precision, decision accuracy, and area under the receiver operating characteristic curve. Data modeling methods for GP included ridge regression, logistic regression, penalized logistic regression, and Bayesian generalized linear regression. Algorithmic modeling methods include Random Forest, Gradient Boosting Machine, Support Vector Machine, K-Nearest Neighbors, Naïve Bayes, and Artificial Neural Network. We found that a Support Vector Machine model provided the most specific decisions of correctly discarding IDC susceptible genotypes, while a Random Forest model resulted in the best decisions of retaining IDC tolerant genotypes, as well as the best outcomes when considering all decision metrics. Overall, the predictions from algorithmic modeling result in better decisions than from data modeling methods applied to soybean IDC.
Additional Links: PMID-34242220
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34242220,
year = {2021},
author = {Xu, Z and Kurek, A and Cannon, SB and Beavis, WD},
title = {Predictions from algorithmic modeling result in better decisions than from data modeling for soybean iron deficiency chlorosis.},
journal = {PloS one},
volume = {16},
number = {7},
pages = {e0240948},
pmid = {34242220},
issn = {1932-6203},
mesh = {*Glycine max/genetics ; *Algorithms ; Bayes Theorem ; Genotype ; Iron Deficiencies ; Plant Necrosis and Chlorosis/genetics ; },
abstract = {In soybean variety development and genetic improvement projects, iron deficiency chlorosis (IDC) is visually assessed as an ordinal response variable. Linear Mixed Models for Genomic Prediction (GP) have been developed, compared, and used to select continuous plant traits such as yield, height, and maturity, but can be inappropriate for ordinal traits. Generalized Linear Mixed Models have been developed for GP of ordinal response variables. However, neither approach addresses the most important questions for cultivar development and genetic improvement: How frequently are the 'wrong' genotypes retained, and how often are the 'correct' genotypes discarded? The research objective reported herein was to compare outcomes from four data modeling and six algorithmic modeling GP methods applied to IDC using decision metrics appropriate for variety development and genetic improvement projects. Appropriate metrics for decision making consist of specificity, sensitivity, precision, decision accuracy, and area under the receiver operating characteristic curve. Data modeling methods for GP included ridge regression, logistic regression, penalized logistic regression, and Bayesian generalized linear regression. Algorithmic modeling methods include Random Forest, Gradient Boosting Machine, Support Vector Machine, K-Nearest Neighbors, Naïve Bayes, and Artificial Neural Network. We found that a Support Vector Machine model provided the most specific decisions of correctly discarding IDC susceptible genotypes, while a Random Forest model resulted in the best decisions of retaining IDC tolerant genotypes, as well as the best outcomes when considering all decision metrics. Overall, the predictions from algorithmic modeling result in better decisions than from data modeling methods applied to soybean IDC.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Glycine max/genetics
*Algorithms
Bayes Theorem
Genotype
Iron Deficiencies
Plant Necrosis and Chlorosis/genetics
RevDate: 2024-04-02
CmpDate: 2021-07-20
The impact of infectious diseases consultation on the management and outcomes of Pseudomonas aeruginosa bacteraemia in adults: a retrospective cohort study.
BMC infectious diseases, 21(1):671.
BACKGROUND: Pseudomonas aeruginosa bacteraemia (PAB) is associated with high mortality. The benefits of infectious diseases consultation (IDC) has been demonstrated in Staphylococcal aureus bacteraemia and other complex infections. Impact of IDC in PAB is unclear. This study aimed to evaluate the impact of IDC on the management and outcomes in patients with PAB.
METHODS: This is a retrospective cohort single-centre study from 1 November 2006 to 29 May 2019, in all adult patients admitted with first episode of PAB. Data collected included demographics, clinical management and outcomes for PAB and whether IDC occurred. In addition, 29 Pseudomonas aeruginosa (PA) stored isolates were available for Illumina whole genome sequencing to investigate if pathogen factors contributed to the mortality.
RESULTS: A total of 128 cases of PAB were identified, 71% received IDC. Patients who received IDC were less likely to receive inappropriate duration of antibiotic therapy (4.4%; vs 67.6%; p < 0.01), more likely to be de-escalated to oral antibiotic in a timely manner (87.9% vs 40.5%; p < 0.01), undergo removal of infected catheter (27.5% vs 13.5%; p = 0.049) and undergo surgical intervention (20.9% vs 5.4%, p = 0.023) for source control. The overall 30-day all-cause mortality rate was 24.2% and was significantly higher in the no IDC group in both unadjusted (56.8% vs 11.0%, odds ratio [OR] = 10.63, p < 0.001) and adjusted analysis (adjusted OR = 7.84; 95% confidence interval, 2.95-20.86). The genotypic analysis did not reveal any PA genetic features associated with increased mortality between IDC versus no IDC groups.
CONCLUSION: Patients who received IDC for PAB had lower 30-day mortality, better source control and management was more compliant with guidelines. Further prospective studies are necessary to determine if these results can be validated in other settings.
Additional Links: PMID-34243714
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34243714,
year = {2021},
author = {Chiong, F and Wasef, MS and Liew, KC and Cowan, R and Tsai, D and Lee, YP and Croft, L and Harris, O and Gwini, SM and Athan, E},
title = {The impact of infectious diseases consultation on the management and outcomes of Pseudomonas aeruginosa bacteraemia in adults: a retrospective cohort study.},
journal = {BMC infectious diseases},
volume = {21},
number = {1},
pages = {671},
pmid = {34243714},
issn = {1471-2334},
mesh = {Adult ; Aged ; Anti-Bacterial Agents/*therapeutic use ; Bacteremia/*drug therapy/mortality/surgery ; Cohort Studies ; Female ; Humans ; Male ; Middle Aged ; Odds Ratio ; Prospective Studies ; Pseudomonas Infections/*drug therapy/mortality/surgery ; *Pseudomonas aeruginosa ; *Referral and Consultation ; Retrospective Studies ; Treatment Outcome ; },
abstract = {BACKGROUND: Pseudomonas aeruginosa bacteraemia (PAB) is associated with high mortality. The benefits of infectious diseases consultation (IDC) has been demonstrated in Staphylococcal aureus bacteraemia and other complex infections. Impact of IDC in PAB is unclear. This study aimed to evaluate the impact of IDC on the management and outcomes in patients with PAB.
METHODS: This is a retrospective cohort single-centre study from 1 November 2006 to 29 May 2019, in all adult patients admitted with first episode of PAB. Data collected included demographics, clinical management and outcomes for PAB and whether IDC occurred. In addition, 29 Pseudomonas aeruginosa (PA) stored isolates were available for Illumina whole genome sequencing to investigate if pathogen factors contributed to the mortality.
RESULTS: A total of 128 cases of PAB were identified, 71% received IDC. Patients who received IDC were less likely to receive inappropriate duration of antibiotic therapy (4.4%; vs 67.6%; p < 0.01), more likely to be de-escalated to oral antibiotic in a timely manner (87.9% vs 40.5%; p < 0.01), undergo removal of infected catheter (27.5% vs 13.5%; p = 0.049) and undergo surgical intervention (20.9% vs 5.4%, p = 0.023) for source control. The overall 30-day all-cause mortality rate was 24.2% and was significantly higher in the no IDC group in both unadjusted (56.8% vs 11.0%, odds ratio [OR] = 10.63, p < 0.001) and adjusted analysis (adjusted OR = 7.84; 95% confidence interval, 2.95-20.86). The genotypic analysis did not reveal any PA genetic features associated with increased mortality between IDC versus no IDC groups.
CONCLUSION: Patients who received IDC for PAB had lower 30-day mortality, better source control and management was more compliant with guidelines. Further prospective studies are necessary to determine if these results can be validated in other settings.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Anti-Bacterial Agents/*therapeutic use
Bacteremia/*drug therapy/mortality/surgery
Cohort Studies
Female
Humans
Male
Middle Aged
Odds Ratio
Prospective Studies
Pseudomonas Infections/*drug therapy/mortality/surgery
*Pseudomonas aeruginosa
*Referral and Consultation
Retrospective Studies
Treatment Outcome
RevDate: 2025-12-15
Multi-organ metastasis as destination for breast cancer cells guided by biomechanical architecture.
American journal of cancer research, 11(6):2537-2567.
A majority of breast cancer patients die of widespread aggressive multidrug-resistant tumors. Aspartate β-hydroxylase (ASPH) is an α-ketoglutarate-dependent dioxygenase and oncofetal antigen involved in embryogenesis. To illustrate if ASPH could be targeted for metastatic breast cancer, embedded and on-top three-dimensional (3-D) cultures, 3-D invasion, mammosphere formation, immunofluorescence, immunohistochemistry, Western blot, co-IP and microarray were conducted. In vitro metastasis was developed to imitate how cancer cells invade basement membrane at the primary site, transendothelially migrate, consequently colonize and outgrow at distant sites. Orthotopic and experimental pulmonary metastatic (tail vein injection) murine models were established using stable breast cancer cell lines. Cox proportional hazards regression models and Kaplan-Meier plots were applied to assess clinical outcome of breast cancer patients. In adult non-cancerous breast tissue, ASPH is undetectable. Pathologically, ASPH expression re-emerged at ductal carcinoma in situ (DCIS), and enhanced with disease progression, from early-stage invasive ductal carcinoma (IDC) to late-stage carcinoma. ASPH at moderate to high levels contribute to aggressive molecular subtypes, early relapse or more frequent progression and metastases, whereas substantially shortened overall survival and disease-free survival of breast cancer patients. Through direct physical interactions with A disintegrin and metalloproteinase domain-containing protein (ADAM)-12/ADAM-15, ASPH could activate SRC cascade, thus upregulating downstream components attributed to multifaceted metastasis. ASPH-SRC axis initiated pro-invasive invadopodium formation causing breakdown/disorganization of extracellular matrix (ECM), simultaneously potentiated epithelial-mesenchymal transition (EMT), induced cancer stem cell markers (CD44 and EpCAM), enhanced mammosphere formation and intensified 3-dimentional invasion. Oncogenic SRC upregulated matrix metallopeptidases (MMPs) were assembled by invadopodia, acting as executive effectors for multi-step metastasis. ASPH-SRC signal guided multi-organ metastases (to lungs, liver, bone, spleen, lymph nodes, mesentery or colon) in immunocompromised mice. Malignant phenotypes induced by ASPH-SRC axis were reversed by the third-generation small molecule inhibitor (SMI) specifically against β-hydroxylase activity of ASPH in pre-clinical models of metastatic breast cancer. Collectively, ASPH could activate ADAMs-SRC-MMPs cascades to promote breast cancer tumor progression and metastasis. ASPH could direct invadopodium construction as a biomechanical sensor and pro-metastatic outlet. ASPH-mediated cancer progression could be specifically/efficiently subverted by SMIs of β-hydroxylase activity. Therefore, ASPH emerges as a therapeutic target for breast cancer.
Additional Links: PMID-34249415
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34249415,
year = {2021},
author = {Lin, Q and Chen, X and Meng, F and Ogawa, K and Li, M and Song, R and Zhang, S and Zhang, Z and Kong, X and Xu, Q and He, F and Liu, D and Bai, X and Sun, B and Hung, MC and Liu, L and Wands, JR and Dong, X},
title = {Multi-organ metastasis as destination for breast cancer cells guided by biomechanical architecture.},
journal = {American journal of cancer research},
volume = {11},
number = {6},
pages = {2537-2567},
pmid = {34249415},
issn = {2156-6976},
support = {P30 GM110759/GM/NIGMS NIH HHS/United States ; R01 CA123544/CA/NCI NIH HHS/United States ; },
abstract = {A majority of breast cancer patients die of widespread aggressive multidrug-resistant tumors. Aspartate β-hydroxylase (ASPH) is an α-ketoglutarate-dependent dioxygenase and oncofetal antigen involved in embryogenesis. To illustrate if ASPH could be targeted for metastatic breast cancer, embedded and on-top three-dimensional (3-D) cultures, 3-D invasion, mammosphere formation, immunofluorescence, immunohistochemistry, Western blot, co-IP and microarray were conducted. In vitro metastasis was developed to imitate how cancer cells invade basement membrane at the primary site, transendothelially migrate, consequently colonize and outgrow at distant sites. Orthotopic and experimental pulmonary metastatic (tail vein injection) murine models were established using stable breast cancer cell lines. Cox proportional hazards regression models and Kaplan-Meier plots were applied to assess clinical outcome of breast cancer patients. In adult non-cancerous breast tissue, ASPH is undetectable. Pathologically, ASPH expression re-emerged at ductal carcinoma in situ (DCIS), and enhanced with disease progression, from early-stage invasive ductal carcinoma (IDC) to late-stage carcinoma. ASPH at moderate to high levels contribute to aggressive molecular subtypes, early relapse or more frequent progression and metastases, whereas substantially shortened overall survival and disease-free survival of breast cancer patients. Through direct physical interactions with A disintegrin and metalloproteinase domain-containing protein (ADAM)-12/ADAM-15, ASPH could activate SRC cascade, thus upregulating downstream components attributed to multifaceted metastasis. ASPH-SRC axis initiated pro-invasive invadopodium formation causing breakdown/disorganization of extracellular matrix (ECM), simultaneously potentiated epithelial-mesenchymal transition (EMT), induced cancer stem cell markers (CD44 and EpCAM), enhanced mammosphere formation and intensified 3-dimentional invasion. Oncogenic SRC upregulated matrix metallopeptidases (MMPs) were assembled by invadopodia, acting as executive effectors for multi-step metastasis. ASPH-SRC signal guided multi-organ metastases (to lungs, liver, bone, spleen, lymph nodes, mesentery or colon) in immunocompromised mice. Malignant phenotypes induced by ASPH-SRC axis were reversed by the third-generation small molecule inhibitor (SMI) specifically against β-hydroxylase activity of ASPH in pre-clinical models of metastatic breast cancer. Collectively, ASPH could activate ADAMs-SRC-MMPs cascades to promote breast cancer tumor progression and metastasis. ASPH could direct invadopodium construction as a biomechanical sensor and pro-metastatic outlet. ASPH-mediated cancer progression could be specifically/efficiently subverted by SMIs of β-hydroxylase activity. Therefore, ASPH emerges as a therapeutic target for breast cancer.},
}
RevDate: 2022-03-30
CmpDate: 2022-02-23
Current Understanding and Management of Intraductal Carcinoma of the Prostate.
Current oncology reports, 23(9):110.
PURPOSE OF REVIEW: This review will discuss current understanding and management approaches of Intraductal carcinoma of the prostate (IDC-P). IDC-P is a histological finding characterized by neoplastic cells that expand but do not invade prostate ducts.
RECENT FINDINGS: The presence of IDC-P on a prostate biopsy is almost always associated with an invasive disease component and is independently associated with worse clinical outcomes in both early and late disease. These tumors are enriched for mutations in homologous DNA recombination repair (HRR) leading to high genomic instability. Multiparametric MRI with targeted biopsy may aid in diagnosis. Given the poor clinical outcomes associated with this histologic entity, its presence in biopsies should warrant consideration of aggressive management.
Additional Links: PMID-34272624
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34272624,
year = {2021},
author = {Considine, B and Adeniran, A and Hurwitz, ME},
title = {Current Understanding and Management of Intraductal Carcinoma of the Prostate.},
journal = {Current oncology reports},
volume = {23},
number = {9},
pages = {110},
pmid = {34272624},
issn = {1534-6269},
mesh = {Carcinoma, Ductal/*genetics/pathology/therapy ; DNA Mismatch Repair/*genetics ; Genetic Predisposition to Disease/*genetics ; Humans ; Male ; *Microsatellite Instability ; *Mutation ; Neoplasm Grading ; Prostatic Neoplasms/*genetics/pathology/therapy ; Signal Transduction/genetics ; },
abstract = {PURPOSE OF REVIEW: This review will discuss current understanding and management approaches of Intraductal carcinoma of the prostate (IDC-P). IDC-P is a histological finding characterized by neoplastic cells that expand but do not invade prostate ducts.
RECENT FINDINGS: The presence of IDC-P on a prostate biopsy is almost always associated with an invasive disease component and is independently associated with worse clinical outcomes in both early and late disease. These tumors are enriched for mutations in homologous DNA recombination repair (HRR) leading to high genomic instability. Multiparametric MRI with targeted biopsy may aid in diagnosis. Given the poor clinical outcomes associated with this histologic entity, its presence in biopsies should warrant consideration of aggressive management.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Carcinoma, Ductal/*genetics/pathology/therapy
DNA Mismatch Repair/*genetics
Genetic Predisposition to Disease/*genetics
Humans
Male
*Microsatellite Instability
*Mutation
Neoplasm Grading
Prostatic Neoplasms/*genetics/pathology/therapy
Signal Transduction/genetics
RevDate: 2024-08-15
CmpDate: 2022-02-10
Reduced Acrolein Detoxification in akr1a1a Zebrafish Mutants Causes Impaired Insulin Receptor Signaling and Microvascular Alterations.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 8(18):e2101281.
Increased acrolein (ACR), a toxic metabolite derived from energy consumption, is associated with diabetes and its complications. However, the molecular mechanisms are mostly unknown, and a suitable animal model with internal increased ACR does not exist for in vivo studying so far. Several enzyme systems are responsible for acrolein detoxification, such as Aldehyde Dehydrogenase (ALDH), Aldo-Keto Reductase (AKR), and Glutathione S-Transferase (GST). To evaluate the function of ACR in glucose homeostasis and diabetes, akr1a1a[-/-] zebrafish mutants are generated using CRISPR/Cas9 technology. Accumulated endogenous acrolein is confirmed in akr1a1a[-/-] larvae and livers of adults. Moreover, a series of experiments are performed regarding organic alterations, the glucose homeostasis, transcriptome, and metabolomics in Tg(fli1:EGFP) zebrafish. Akr1a1a[-/-] larvae display impaired glucose homeostasis and angiogenic retina hyaloid vasculature, which are caused by reduced acrolein detoxification ability and increased internal ACR concentration. The effects of acrolein on hyaloid vasculature can be reversed by acrolein-scavenger l-carnosine treatment. In adult akr1a1a[-/-] mutants, impaired glucose tolerance accompanied by angiogenic retina vessels and glomerular basement membrane thickening, consistent with an early pathological appearance in diabetic retinopathy and nephropathy, are observed. Thus, the data strongly suggest impaired ACR detoxification and elevated ACR concentration as biomarkers and inducers for diabetes and diabetic complications.
Additional Links: PMID-34278746
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34278746,
year = {2021},
author = {Qi, H and Schmöhl, F and Li, X and Qian, X and Tabler, CT and Bennewitz, K and Sticht, C and Morgenstern, J and Fleming, T and Volk, N and Hausser, I and Heidenreich, E and Hell, R and Nawroth, PP and Kroll, J},
title = {Reduced Acrolein Detoxification in akr1a1a Zebrafish Mutants Causes Impaired Insulin Receptor Signaling and Microvascular Alterations.},
journal = {Advanced science (Weinheim, Baden-Wurttemberg, Germany)},
volume = {8},
number = {18},
pages = {e2101281},
pmid = {34278746},
issn = {2198-3844},
support = {CRC1118//Deutsche Forschungsgemeinschaft/ ; IRTG1874/2 DIAMICOM//Deutsche Forschungsgemeinschaft/ ; CSC 201806230275//China Scholarship Council/ ; 81800390//National Natural Science Foundation of China/ ; },
mesh = {Acrolein/*metabolism ; Animals ; Diabetes Mellitus, Experimental/*metabolism ; Disease Models, Animal ; Glucose/*metabolism ; Homeostasis ; Larva/metabolism ; Liver/*metabolism ; Metabolomics/methods ; Receptor, Insulin/*metabolism ; Signal Transduction ; Transcriptome ; Zebrafish/metabolism ; },
abstract = {Increased acrolein (ACR), a toxic metabolite derived from energy consumption, is associated with diabetes and its complications. However, the molecular mechanisms are mostly unknown, and a suitable animal model with internal increased ACR does not exist for in vivo studying so far. Several enzyme systems are responsible for acrolein detoxification, such as Aldehyde Dehydrogenase (ALDH), Aldo-Keto Reductase (AKR), and Glutathione S-Transferase (GST). To evaluate the function of ACR in glucose homeostasis and diabetes, akr1a1a[-/-] zebrafish mutants are generated using CRISPR/Cas9 technology. Accumulated endogenous acrolein is confirmed in akr1a1a[-/-] larvae and livers of adults. Moreover, a series of experiments are performed regarding organic alterations, the glucose homeostasis, transcriptome, and metabolomics in Tg(fli1:EGFP) zebrafish. Akr1a1a[-/-] larvae display impaired glucose homeostasis and angiogenic retina hyaloid vasculature, which are caused by reduced acrolein detoxification ability and increased internal ACR concentration. The effects of acrolein on hyaloid vasculature can be reversed by acrolein-scavenger l-carnosine treatment. In adult akr1a1a[-/-] mutants, impaired glucose tolerance accompanied by angiogenic retina vessels and glomerular basement membrane thickening, consistent with an early pathological appearance in diabetic retinopathy and nephropathy, are observed. Thus, the data strongly suggest impaired ACR detoxification and elevated ACR concentration as biomarkers and inducers for diabetes and diabetic complications.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Acrolein/*metabolism
Animals
Diabetes Mellitus, Experimental/*metabolism
Disease Models, Animal
Glucose/*metabolism
Homeostasis
Larva/metabolism
Liver/*metabolism
Metabolomics/methods
Receptor, Insulin/*metabolism
Signal Transduction
Transcriptome
Zebrafish/metabolism
RevDate: 2022-04-26
CmpDate: 2021-09-27
MARCKS on Tumor-Associated Macrophages is Correlated with Immune Infiltrates and Poor Prognosis in Hepatocellular Carcinoma.
Cancer investigation, 39(9):756-768.
BACKGROUND: Hepatocellular carcinoma is the fourth most common cause of cancer-related death. However, the cross-talk between tumor immune microenvironment and hepatocellular carcinoma (HCC) remains unclear.
MATERIAL AND METHODS: We analyzed the expression of miR-143-3p in exosomes from different HCC cell lines. Differentially expressed genes (DEGs) in Tumor-associated macrophages (TAMs) co-cultured with HCC cell lines were overlapped with miR-143-3p target genes. We used the Oncomine, Kaplan-Meier plotter, and The Cancer Genome Atlas (TCGA) databases to assess Myristoylated alanine-rich C-kinase substrate (MARCKS) expression in various types of cancers. The relationship between patient clinicopathological characteristics and MARCKS expression level was identified using the Kaplan-Meier plotter database. Last, we analyzed how MARCKS expression correlated with immune infiltration makers using the TCGA database, Tumor IMmune Estimation Resource (TIMER), and Gene Expression Profiling Interactive Analysis (GEPIA).
RESULTS: Exosomal miR-143-3p was elevated after IL-6 treatment in the HCC cell line. MARCKS, a target gene of miR-143-3p, was up-regulated in Tumor-associated macrophages co-cultured with high-metastatic-potential HCC cell line. MARCKS expression was identified as significantly correlated with outcome in multiple types of cancer, especially in HCC. High MARCKS expression level was associated with poorer overall survival (OS), Progress-free survival (PFS), and also with patient gender, race, hepatitis virus background, stage, grade, AJCC_T, and vascular invasion. MARCKS was positively associated with levels of T follicular helper cells (TFH) (R = .48, p < .001), T helper type 2 (Th2) cells (R = .47, p < .001), macrophages (R = .41, p ≤ .001), T helper cells (R = .40, p < .001), T helper type 1 (Th1) cells (R = .38, p < .001), T cells (R = .34, p < .001), NK CD56bright cells (R = .34, p < .001) and immature DC (iDC) (R = .33, p < .001), and negatively associated with levels of T helper 17 (Th17) cells. Also, MARCKS may influence the M2 polarization and immune escape.
CONCLUSION: The present study suggests that MARCKS on TAMs is associated with poor prognosis and immune cell infiltration in HCC.
Additional Links: PMID-34279157
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34279157,
year = {2021},
author = {Ren, X and Ju, Y and Wang, C and Wei, R and Sun, H and Zhang, Q},
title = {MARCKS on Tumor-Associated Macrophages is Correlated with Immune Infiltrates and Poor Prognosis in Hepatocellular Carcinoma.},
journal = {Cancer investigation},
volume = {39},
number = {9},
pages = {756-768},
doi = {10.1080/07357907.2021.1950757},
pmid = {34279157},
issn = {1532-4192},
mesh = {Biomarkers, Tumor/*genetics/metabolism ; Carcinoma, Hepatocellular/*genetics/metabolism/pathology ; Cell Line, Tumor ; Exosomes/genetics ; Gene Expression Profiling/*methods ; *Gene Expression Regulation, Neoplastic ; Hep G2 Cells ; Humans ; Immunohistochemistry ; Kaplan-Meier Estimate ; Liver Neoplasms/*genetics/metabolism/pathology ; MicroRNAs/genetics ; Myristoylated Alanine-Rich C Kinase Substrate/*genetics/metabolism ; Prognosis ; Reverse Transcriptase Polymerase Chain Reaction ; THP-1 Cells ; Tumor-Associated Macrophages/*metabolism ; },
abstract = {BACKGROUND: Hepatocellular carcinoma is the fourth most common cause of cancer-related death. However, the cross-talk between tumor immune microenvironment and hepatocellular carcinoma (HCC) remains unclear.
MATERIAL AND METHODS: We analyzed the expression of miR-143-3p in exosomes from different HCC cell lines. Differentially expressed genes (DEGs) in Tumor-associated macrophages (TAMs) co-cultured with HCC cell lines were overlapped with miR-143-3p target genes. We used the Oncomine, Kaplan-Meier plotter, and The Cancer Genome Atlas (TCGA) databases to assess Myristoylated alanine-rich C-kinase substrate (MARCKS) expression in various types of cancers. The relationship between patient clinicopathological characteristics and MARCKS expression level was identified using the Kaplan-Meier plotter database. Last, we analyzed how MARCKS expression correlated with immune infiltration makers using the TCGA database, Tumor IMmune Estimation Resource (TIMER), and Gene Expression Profiling Interactive Analysis (GEPIA).
RESULTS: Exosomal miR-143-3p was elevated after IL-6 treatment in the HCC cell line. MARCKS, a target gene of miR-143-3p, was up-regulated in Tumor-associated macrophages co-cultured with high-metastatic-potential HCC cell line. MARCKS expression was identified as significantly correlated with outcome in multiple types of cancer, especially in HCC. High MARCKS expression level was associated with poorer overall survival (OS), Progress-free survival (PFS), and also with patient gender, race, hepatitis virus background, stage, grade, AJCC_T, and vascular invasion. MARCKS was positively associated with levels of T follicular helper cells (TFH) (R = .48, p < .001), T helper type 2 (Th2) cells (R = .47, p < .001), macrophages (R = .41, p ≤ .001), T helper cells (R = .40, p < .001), T helper type 1 (Th1) cells (R = .38, p < .001), T cells (R = .34, p < .001), NK CD56bright cells (R = .34, p < .001) and immature DC (iDC) (R = .33, p < .001), and negatively associated with levels of T helper 17 (Th17) cells. Also, MARCKS may influence the M2 polarization and immune escape.
CONCLUSION: The present study suggests that MARCKS on TAMs is associated with poor prognosis and immune cell infiltration in HCC.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Biomarkers, Tumor/*genetics/metabolism
Carcinoma, Hepatocellular/*genetics/metabolism/pathology
Cell Line, Tumor
Exosomes/genetics
Gene Expression Profiling/*methods
*Gene Expression Regulation, Neoplastic
Hep G2 Cells
Humans
Immunohistochemistry
Kaplan-Meier Estimate
Liver Neoplasms/*genetics/metabolism/pathology
MicroRNAs/genetics
Myristoylated Alanine-Rich C Kinase Substrate/*genetics/metabolism
Prognosis
Reverse Transcriptase Polymerase Chain Reaction
THP-1 Cells
Tumor-Associated Macrophages/*metabolism
RevDate: 2022-01-26
CmpDate: 2022-01-26
Tumor Budding is a reliable predictor for death and metastasis in invasive ductal breast cancer and correlates with other prognostic clinicopathological parameters.
Annals of diagnostic pathology, 54:151792.
BACKGROUND AND OBJECTIVE: Breast cancers are the most common type of cancer and the most common cause of mortality in women worldwide. Different prognostic factors are the subject of research to differentiate the prognosis even between cases at a similar stage and identify risky patients earlier and create individual treatment approaches. Tumor budding (TB) has been identified as a poor prognostic factor in many types of cancer, especially colorectal carcinomas. In our study, we aimed to determine the prognostic significance of the TB by evaluating the TB in line with clinicopathological parameters in breast invasive ductal carcinoma cases.
MATERIALS AND METHODS: 311 breast carcinoma cases operated in our hospital between January 2010 and April 2020 were included in the study. In hematoxylin-eosin (H&E) sections of the cases, TB was evaluated in a single high-power field (HPF). ROC analysis was performed with overall survival data, and low, and high TB cutoffs were obtained. The relationship of the high TB with clinicopathological parameters was evaluated, and survival analysis was performed.
RESULTS: We determined that high TB in breast invasive ductal carcinoma cases was associated with low survival time, metastasis, axillary lymph node metastasis, angiolymphatic invasion, advanced stage (pT3), high Ki-67 proliferation index, progesterone receptor (PR) loss, and advanced age. Tumor budding was identified as an independent risk factor in overall and disease-free survival analysis.
CONCLUSION: Tumor budding is a prognostic parameter that can be easily evaluated in all centers since it does not cause additional cost to routine pathological examinations. We think it may be helpful to establish a standard methodology in evaluating tumor bud in breast carcinomas and including it in regular pathology reporting.
Additional Links: PMID-34293708
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34293708,
year = {2021},
author = {Okcu, O and Öztürk, Ç and Şen, B and Arpa, M and Bedir, R},
title = {Tumor Budding is a reliable predictor for death and metastasis in invasive ductal breast cancer and correlates with other prognostic clinicopathological parameters.},
journal = {Annals of diagnostic pathology},
volume = {54},
number = {},
pages = {151792},
doi = {10.1016/j.anndiagpath.2021.151792},
pmid = {34293708},
issn = {1532-8198},
mesh = {Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor/analysis ; Breast Neoplasms/diagnosis/*mortality/*pathology ; Carcinoma, Ductal, Breast/mortality/*pathology ; Disease-Free Survival ; Female ; Humans ; Lymph Nodes/pathology ; Lymphatic Metastasis/diagnosis/*pathology ; Middle Aged ; Neoplasm Invasiveness/*pathology ; Prognosis ; Receptors, Progesterone/metabolism ; },
abstract = {BACKGROUND AND OBJECTIVE: Breast cancers are the most common type of cancer and the most common cause of mortality in women worldwide. Different prognostic factors are the subject of research to differentiate the prognosis even between cases at a similar stage and identify risky patients earlier and create individual treatment approaches. Tumor budding (TB) has been identified as a poor prognostic factor in many types of cancer, especially colorectal carcinomas. In our study, we aimed to determine the prognostic significance of the TB by evaluating the TB in line with clinicopathological parameters in breast invasive ductal carcinoma cases.
MATERIALS AND METHODS: 311 breast carcinoma cases operated in our hospital between January 2010 and April 2020 were included in the study. In hematoxylin-eosin (H&E) sections of the cases, TB was evaluated in a single high-power field (HPF). ROC analysis was performed with overall survival data, and low, and high TB cutoffs were obtained. The relationship of the high TB with clinicopathological parameters was evaluated, and survival analysis was performed.
RESULTS: We determined that high TB in breast invasive ductal carcinoma cases was associated with low survival time, metastasis, axillary lymph node metastasis, angiolymphatic invasion, advanced stage (pT3), high Ki-67 proliferation index, progesterone receptor (PR) loss, and advanced age. Tumor budding was identified as an independent risk factor in overall and disease-free survival analysis.
CONCLUSION: Tumor budding is a prognostic parameter that can be easily evaluated in all centers since it does not cause additional cost to routine pathological examinations. We think it may be helpful to establish a standard methodology in evaluating tumor bud in breast carcinomas and including it in regular pathology reporting.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Aged
Aged, 80 and over
Biomarkers, Tumor/analysis
Breast Neoplasms/diagnosis/*mortality/*pathology
Carcinoma, Ductal, Breast/mortality/*pathology
Disease-Free Survival
Female
Humans
Lymph Nodes/pathology
Lymphatic Metastasis/diagnosis/*pathology
Middle Aged
Neoplasm Invasiveness/*pathology
Prognosis
Receptors, Progesterone/metabolism
RevDate: 2022-03-21
CmpDate: 2022-03-21
Breast invasive ductal carcinoma diagnosis with a three-miRNA panel in serum.
Biomarkers in medicine, 15(12):951-963.
Aim: Breast cancer, especially invasive ductal carcinoma (IDC), is the cause of a great clinical burden. miRNA could be considered as a noninvasive biomarkers for IDC diagnosis. Materials & methods: Two hundred and sixty participants (135 IDC patients and 125 healthy controls) were enrolled in a three-cohort study. The expression of 28 miRNAs in serum were detected with quantitative reverse transcription-PCR. Bioinformatic analysis was used for predicting the target genes of three selected miRNAs. Results: The expression level of seven miRNAs (miR-9-5p, miR-34b-3p, miR-1-3p, miR-146a-5p, miR-20a-5p, miR-34a-5p, miR-125b-5p) was discrepant at the validation cohort. Through statistical test, a three-miRNA panel (miR-9-5p, miR-34b-3p, miR-146a-5p) was significant for IDC diagnosis (AUC = 0.880, sensitivity = 86.25%, specificity = 81.25%). Conclusion: The three-miRNA panel in serum could be used as a noninvasive biomarker in the diagnosis of IDC.
Additional Links: PMID-34293926
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34293926,
year = {2021},
author = {Chen, X and Li, X and Wang, J and Zhao, L and Peng, X and Zhang, C and Liu, K and Huang, G and Lai, Y},
title = {Breast invasive ductal carcinoma diagnosis with a three-miRNA panel in serum.},
journal = {Biomarkers in medicine},
volume = {15},
number = {12},
pages = {951-963},
doi = {10.2217/bmm-2020-0785},
pmid = {34293926},
issn = {1752-0371},
mesh = {Biomarkers, Tumor/blood/*genetics ; Breast Neoplasms/blood/diagnosis/*genetics ; Carcinoma, Ductal, Breast/blood/diagnosis/*genetics ; Cohort Studies ; Female ; Gene Expression Profiling/methods ; Gene Expression Regulation, Neoplastic ; Humans ; MicroRNAs/*genetics ; Middle Aged ; Reverse Transcriptase Polymerase Chain Reaction ; Sensitivity and Specificity ; },
abstract = {Aim: Breast cancer, especially invasive ductal carcinoma (IDC), is the cause of a great clinical burden. miRNA could be considered as a noninvasive biomarkers for IDC diagnosis. Materials & methods: Two hundred and sixty participants (135 IDC patients and 125 healthy controls) were enrolled in a three-cohort study. The expression of 28 miRNAs in serum were detected with quantitative reverse transcription-PCR. Bioinformatic analysis was used for predicting the target genes of three selected miRNAs. Results: The expression level of seven miRNAs (miR-9-5p, miR-34b-3p, miR-1-3p, miR-146a-5p, miR-20a-5p, miR-34a-5p, miR-125b-5p) was discrepant at the validation cohort. Through statistical test, a three-miRNA panel (miR-9-5p, miR-34b-3p, miR-146a-5p) was significant for IDC diagnosis (AUC = 0.880, sensitivity = 86.25%, specificity = 81.25%). Conclusion: The three-miRNA panel in serum could be used as a noninvasive biomarker in the diagnosis of IDC.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Biomarkers, Tumor/blood/*genetics
Breast Neoplasms/blood/diagnosis/*genetics
Carcinoma, Ductal, Breast/blood/diagnosis/*genetics
Cohort Studies
Female
Gene Expression Profiling/methods
Gene Expression Regulation, Neoplastic
Humans
MicroRNAs/*genetics
Middle Aged
Reverse Transcriptase Polymerase Chain Reaction
Sensitivity and Specificity
RevDate: 2021-11-08
CmpDate: 2021-11-08
Perception of breast cancer risk factors: Dysregulation of TGF-β/miRNA axis in Pakistani females.
PloS one, 16(7):e0255243.
Breast cancer poses a serious health risk for women throughout the world. Among the Asian population, Pakistani women have the highest risk of developing breast cancer. One out of nine women is diagnosed with breast cancer in Pakistan. The etiology and the risk factor leading to breast cancer are largely unknown. In the current study the risk factors that are most pertinent to the Pakistani population, the etiology, molecular mechanisms of tumor progression, and therapeutic targets of breast cancer are studied. A correlative, cross-sectional, descriptive, and questionnaire-based study was designed to predict the risk factors in breast cancer patients. Invasive Ductal Carcinoma (90%) and grade-II tumor (73.2%) formation are more common in our patient's data set. Clinical parameters such as mean age of 47.5 years (SD ± 11.17), disturbed menstrual cycle (> 2), cousin marriages (repeated), and lactation period (< 0.5 Y) along with stress, dietary and environmental factors have an essential role in the development of breast cancer. In addition to this in silico analysis was performed to screen the miRNA regulating the TGF-beta pathway using TargetScanHuman, and correlation was depicted through Mindjet Manager. The information thus obtained was observed in breast cancer clinical samples both in peripheral blood mononuclear cells, and biopsy through quantitative real-time PCR. There was a significant dysregulation (**P>0.001) of the TGF-β1 signaling pathway and the miRNAs (miR-29a, miR-140, and miR-148a) in patients' biopsy in grade and stage specifically, correlated with expression in blood samples. miRNAs (miR-29a and miR-140, miR-148a) can be an effective diagnostic and prognostic marker as they regulate SMAD4 and SMAD2 expression respectively in breast cancer blood and biopsy samples. Therefore, proactive therapeutic strategies can be devised considering negatively regulated cascade genes and amalgamated miRNAs to control breast cancer better.
Additional Links: PMID-34297787
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34297787,
year = {2021},
author = {Ahmed, F and Adnan, M and Malik, A and Tariq, S and Kamal, F and Ijaz, B},
title = {Perception of breast cancer risk factors: Dysregulation of TGF-β/miRNA axis in Pakistani females.},
journal = {PloS one},
volume = {16},
number = {7},
pages = {e0255243},
pmid = {34297787},
issn = {1932-6203},
mesh = {Adult ; Breast Neoplasms/epidemiology/*genetics ; Carcinoma, Ductal, Breast/epidemiology/*genetics ; Female ; Humans ; MicroRNAs/genetics/*metabolism ; Middle Aged ; Pakistan ; Smad2 Protein/genetics/metabolism ; Smad4 Protein/genetics/metabolism ; Transforming Growth Factor beta/genetics/*metabolism ; },
abstract = {Breast cancer poses a serious health risk for women throughout the world. Among the Asian population, Pakistani women have the highest risk of developing breast cancer. One out of nine women is diagnosed with breast cancer in Pakistan. The etiology and the risk factor leading to breast cancer are largely unknown. In the current study the risk factors that are most pertinent to the Pakistani population, the etiology, molecular mechanisms of tumor progression, and therapeutic targets of breast cancer are studied. A correlative, cross-sectional, descriptive, and questionnaire-based study was designed to predict the risk factors in breast cancer patients. Invasive Ductal Carcinoma (90%) and grade-II tumor (73.2%) formation are more common in our patient's data set. Clinical parameters such as mean age of 47.5 years (SD ± 11.17), disturbed menstrual cycle (> 2), cousin marriages (repeated), and lactation period (< 0.5 Y) along with stress, dietary and environmental factors have an essential role in the development of breast cancer. In addition to this in silico analysis was performed to screen the miRNA regulating the TGF-beta pathway using TargetScanHuman, and correlation was depicted through Mindjet Manager. The information thus obtained was observed in breast cancer clinical samples both in peripheral blood mononuclear cells, and biopsy through quantitative real-time PCR. There was a significant dysregulation (**P>0.001) of the TGF-β1 signaling pathway and the miRNAs (miR-29a, miR-140, and miR-148a) in patients' biopsy in grade and stage specifically, correlated with expression in blood samples. miRNAs (miR-29a and miR-140, miR-148a) can be an effective diagnostic and prognostic marker as they regulate SMAD4 and SMAD2 expression respectively in breast cancer blood and biopsy samples. Therefore, proactive therapeutic strategies can be devised considering negatively regulated cascade genes and amalgamated miRNAs to control breast cancer better.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Adult
Breast Neoplasms/epidemiology/*genetics
Carcinoma, Ductal, Breast/epidemiology/*genetics
Female
Humans
MicroRNAs/genetics/*metabolism
Middle Aged
Pakistan
Smad2 Protein/genetics/metabolism
Smad4 Protein/genetics/metabolism
Transforming Growth Factor beta/genetics/*metabolism
RevDate: 2022-01-05
CmpDate: 2022-01-05
Feasibility and Acceptability of Instructions of Daily Care in Overweight and Obese Knee Osteoarthritis Participants.
Current rheumatology reviews, 17(4):421-427.
INTRODUCTION: Knee Osteoarthritis (OA) is a weight-bearing joint disease and is more common in overweight and obese persons. The objective of the study was to assess the feasibility and acceptability of Instructions of Daily Care (IDC) on pain, mobility, and Body Mass Index (BMI) among knee OA participants who are overweight or obese.
MATERIALS AND METHODS: The study was an open-label randomized controlled trial of six weeks. Forty overweight and obese participants with knee OA were randomly divided into two groups by a computer-generated number. The participants in the Instruction Group (IG) were provided with leaflets explaining IDC for the duration of six weeks. Both groups were instructed to take low doses of the non-steroid anti-inflammatory drug (NSAIDs) on alternate days. The outcome measures were pain, mobility and BMI. The feasibility and acceptability of knee pain and mobility were assessed using a questionnaire designed by experts in rehabilitation.
RESULTS: Participants in the IG reported more statistically significant pain relief as assessed by the Western Ontario and McMaster Universities Osteoarthritis Index score (p=0.001) and improvement in mobility (p=0.000) assessed by the Timed Up and Go test score after six weeks compared to the Control Group (CG). Both groups did not demonstrate any significant change in BMI (p-value > 0.05). The results of descriptive statistics showed a significantly higher satisfaction score for participants who received a combination of IDC and NSAIDs, indicating an acceptable intervention.
CONCLUSION: The IDC is effective and acceptable in terms of improving pain and mobility and should be recommended as the usual care of treatment.
Additional Links: PMID-34315379
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34315379,
year = {2021},
author = {Rafiq, MT and Hamid, MSA and Hafiz, E and Chaudhary, FA and Khan, MI},
title = {Feasibility and Acceptability of Instructions of Daily Care in Overweight and Obese Knee Osteoarthritis Participants.},
journal = {Current rheumatology reviews},
volume = {17},
number = {4},
pages = {421-427},
doi = {10.2174/1573397117666210727095552},
pmid = {34315379},
issn = {1875-6360},
mesh = {Anti-Inflammatory Agents, Non-Steroidal/therapeutic use ; Feasibility Studies ; Humans ; *Obesity/complications ; *Osteoarthritis, Knee/drug therapy/therapy ; *Overweight/complications ; Pain ; *Self Care/methods ; Treatment Outcome ; },
abstract = {INTRODUCTION: Knee Osteoarthritis (OA) is a weight-bearing joint disease and is more common in overweight and obese persons. The objective of the study was to assess the feasibility and acceptability of Instructions of Daily Care (IDC) on pain, mobility, and Body Mass Index (BMI) among knee OA participants who are overweight or obese.
MATERIALS AND METHODS: The study was an open-label randomized controlled trial of six weeks. Forty overweight and obese participants with knee OA were randomly divided into two groups by a computer-generated number. The participants in the Instruction Group (IG) were provided with leaflets explaining IDC for the duration of six weeks. Both groups were instructed to take low doses of the non-steroid anti-inflammatory drug (NSAIDs) on alternate days. The outcome measures were pain, mobility and BMI. The feasibility and acceptability of knee pain and mobility were assessed using a questionnaire designed by experts in rehabilitation.
RESULTS: Participants in the IG reported more statistically significant pain relief as assessed by the Western Ontario and McMaster Universities Osteoarthritis Index score (p=0.001) and improvement in mobility (p=0.000) assessed by the Timed Up and Go test score after six weeks compared to the Control Group (CG). Both groups did not demonstrate any significant change in BMI (p-value > 0.05). The results of descriptive statistics showed a significantly higher satisfaction score for participants who received a combination of IDC and NSAIDs, indicating an acceptable intervention.
CONCLUSION: The IDC is effective and acceptable in terms of improving pain and mobility and should be recommended as the usual care of treatment.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
Feasibility Studies
Humans
*Obesity/complications
*Osteoarthritis, Knee/drug therapy/therapy
*Overweight/complications
Pain
*Self Care/methods
Treatment Outcome
RevDate: 2021-07-29
Hyperechoic Lesions on Breast Ultrasound: All Things Bright and Beautiful?.
The Indian journal of radiology & imaging, 31(1):18-23.
Ultrasound (US) lexicon of the Breast Imaging Reporting and Data System (BI-RADS) defines an echogenic breast mass as a lesion that is hyperechoic in comparison with subcutaneous adipose tissue. However, at sonography, only 0.6 to 5.6% of breast masses are echogenic and the majority of these lesions are benign. approximately, 0.5% of malignant breast lesions appear hyperechoic. The various benign pathologic entities that appear echogenic on US are lipoma, hematoma, seroma, fat necrosis, abscess, pseudoangiomatous stromal hyperplasia, galactocele, etc. The malignant diagnoses that may present as hyperechoic lesions on breast US are invasive ductal carcinoma, invasive lobular carcinoma, metastasis, lymphoma, and angiosarcoma. Echogenic breast masses need to be correlated with mammographic findings and clinical history. Lesions with worrisome features such as a spiculated margin, interval enlargement, interval vascularity, or association with suspicious microcalcifications on mammography require biopsy. In this article, we would like to present a pictorial review of patients who presented to our department with echogenic breast masses and were subsequently found to have various malignant as well as benign etiologies on histopathology.
Additional Links: PMID-34316107
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34316107,
year = {2021},
author = {Ramani, SK and Rastogi, A and Nair, N and Shet, TM and Thakur, MH},
title = {Hyperechoic Lesions on Breast Ultrasound: All Things Bright and Beautiful?.},
journal = {The Indian journal of radiology & imaging},
volume = {31},
number = {1},
pages = {18-23},
pmid = {34316107},
issn = {0971-3026},
abstract = {Ultrasound (US) lexicon of the Breast Imaging Reporting and Data System (BI-RADS) defines an echogenic breast mass as a lesion that is hyperechoic in comparison with subcutaneous adipose tissue. However, at sonography, only 0.6 to 5.6% of breast masses are echogenic and the majority of these lesions are benign. approximately, 0.5% of malignant breast lesions appear hyperechoic. The various benign pathologic entities that appear echogenic on US are lipoma, hematoma, seroma, fat necrosis, abscess, pseudoangiomatous stromal hyperplasia, galactocele, etc. The malignant diagnoses that may present as hyperechoic lesions on breast US are invasive ductal carcinoma, invasive lobular carcinoma, metastasis, lymphoma, and angiosarcoma. Echogenic breast masses need to be correlated with mammographic findings and clinical history. Lesions with worrisome features such as a spiculated margin, interval enlargement, interval vascularity, or association with suspicious microcalcifications on mammography require biopsy. In this article, we would like to present a pictorial review of patients who presented to our department with echogenic breast masses and were subsequently found to have various malignant as well as benign etiologies on histopathology.},
}
RevDate: 2022-05-31
CmpDate: 2021-07-30
MiR-22-3p Suppresses Cell Migration and Invasion by Targeting PLAGL2 in Breast Cancer.
Journal of the College of Physicians and Surgeons--Pakistan : JCPSP, 31(8):937-940.
OBJECTIVE: To investigate the expression of miR-22-3p in breast cancer and the mechanism of targeting PLAGL2 to inhibit the invasion and migration in human breast cancer.
STUDY DESIGN: An experimental study.
PLACE AND DURATION OF STUDY: Department of Oncology and Department of General Surgery, The People's Hospital of China Three Gorges University, China, from March 2019 to December 2020.
METHODOLOGY: The miR-22-3p expression level in 41 paired human primary breast invasive ductal carcinoma tissues and para-cancer tissues was obtained by real-time fluorescence quantitative reverse transcriptase PCR (qRT-PCR). The effect of miR-22-3p on the proliferation of breast cancer cells was detected by growth curve method. Online software TargetScan was used to predict the target genes of miR-22-3p. The prediction results were verified by luciferase reporter gene assay and qRT⁃PCR.
RESULTS: MiR-22-3p expression was significantly decreased in the breast cancer tissues than in para⁃carcinoma normal breast tissues (p<0.05). Over-expression of miR-22-3p can inhibit the proliferation of MCF-7 cells significantly. Pleomorphic adenoma gene-like protein 2(PLAGL2) is the predicted target gene of miR-22-3p. MiR-22-3p binds to its predicted target gene PLAGL2-3'UTR. The expression of miR-22-3p was negatively correlated with PLAGL2 in MCF-7 cells.
CONCLUSION: MiR-22-3p could suppress the proliferation of breast cancer by targeting PLAGL2. This suggests that miR-22-3p may be a strategy of choice for targeted therapy of breast cancer. Key Words: Breast cancer, MiR-22-3p, PLAGL2, Cell proliferation.
Additional Links: PMID-34320711
Publisher:
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34320711,
year = {2021},
author = {Fan, T and Wang, CQ and Li, XT and Yang, H and Zhou, J and Song, YJ},
title = {MiR-22-3p Suppresses Cell Migration and Invasion by Targeting PLAGL2 in Breast Cancer.},
journal = {Journal of the College of Physicians and Surgeons--Pakistan : JCPSP},
volume = {31},
number = {8},
pages = {937-940},
doi = {10.29271/jcpsp.2021.08.937},
pmid = {34320711},
issn = {1681-7168},
mesh = {*Breast Neoplasms/genetics ; Cell Line, Tumor ; Cell Movement ; Cell Proliferation ; China ; DNA-Binding Proteins/genetics/metabolism ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; *MicroRNAs/genetics ; RNA-Binding Proteins/genetics ; Transcription Factors/genetics ; },
abstract = {OBJECTIVE: To investigate the expression of miR-22-3p in breast cancer and the mechanism of targeting PLAGL2 to inhibit the invasion and migration in human breast cancer.
STUDY DESIGN: An experimental study.
PLACE AND DURATION OF STUDY: Department of Oncology and Department of General Surgery, The People's Hospital of China Three Gorges University, China, from March 2019 to December 2020.
METHODOLOGY: The miR-22-3p expression level in 41 paired human primary breast invasive ductal carcinoma tissues and para-cancer tissues was obtained by real-time fluorescence quantitative reverse transcriptase PCR (qRT-PCR). The effect of miR-22-3p on the proliferation of breast cancer cells was detected by growth curve method. Online software TargetScan was used to predict the target genes of miR-22-3p. The prediction results were verified by luciferase reporter gene assay and qRT⁃PCR.
RESULTS: MiR-22-3p expression was significantly decreased in the breast cancer tissues than in para⁃carcinoma normal breast tissues (p<0.05). Over-expression of miR-22-3p can inhibit the proliferation of MCF-7 cells significantly. Pleomorphic adenoma gene-like protein 2(PLAGL2) is the predicted target gene of miR-22-3p. MiR-22-3p binds to its predicted target gene PLAGL2-3'UTR. The expression of miR-22-3p was negatively correlated with PLAGL2 in MCF-7 cells.
CONCLUSION: MiR-22-3p could suppress the proliferation of breast cancer by targeting PLAGL2. This suggests that miR-22-3p may be a strategy of choice for targeted therapy of breast cancer. Key Words: Breast cancer, MiR-22-3p, PLAGL2, Cell proliferation.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
*Breast Neoplasms/genetics
Cell Line, Tumor
Cell Movement
Cell Proliferation
China
DNA-Binding Proteins/genetics/metabolism
Female
Gene Expression Regulation, Neoplastic
Humans
*MicroRNAs/genetics
RNA-Binding Proteins/genetics
Transcription Factors/genetics
RevDate: 2022-02-16
CmpDate: 2022-02-16
Distinct signatures of codon and codon pair usage in 32 primary tumor types in the novel database CancerCoCoPUTs for cancer-specific codon usage.
Genome medicine, 13(1):122.
BACKGROUND: Gene expression is highly variable across tissues of multi-cellular organisms, influencing the codon usage of the tissue-specific transcriptome. Cancer disrupts the gene expression pattern of healthy tissue resulting in altered codon usage preferences. The topic of codon usage changes as they relate to codon demand, and tRNA supply in cancer is of growing interest.
METHODS: We analyzed transcriptome-weighted codon and codon pair usage based on The Cancer Genome Atlas (TCGA) RNA-seq data from 6427 solid tumor samples and 632 normal tissue samples. This dataset represents 32 cancer types affecting 11 distinct tissues. Our analysis focused on tissues that give rise to multiple solid tumor types and cancer types that are present in multiple tissues.
RESULTS: We identified distinct patterns of synonymous codon usage changes for different cancer types affecting the same tissue. For example, a substantial increase in GGT-glycine was observed in invasive ductal carcinoma (IDC), invasive lobular carcinoma (ILC), and mixed invasive ductal and lobular carcinoma (IDLC) of the breast. Change in synonymous codon preference favoring GGT correlated with change in synonymous codon preference against GGC in IDC and IDLC, but not in ILC. Furthermore, we examined the codon usage changes between paired healthy/tumor tissue from the same patient. Using clinical data from TCGA, we conducted a survival analysis of patients based on the degree of change between healthy and tumor-specific codon usage, revealing an association between larger changes and increased mortality. We have also created a database that contains cancer-specific codon and codon pair usage data for cancer types derived from TCGA, which represents a comprehensive tool for codon-usage-oriented cancer research.
CONCLUSIONS: Based on data from TCGA, we have highlighted tumor type-specific signatures of codon and codon pair usage. Paired data revealed variable changes to codon usage patterns, which must be considered when designing personalized cancer treatments. The associated database, CancerCoCoPUTs, represents a comprehensive resource for codon and codon pair usage in cancer and is available at https://dnahive.fda.gov/review/cancercocoputs/ . These findings are important to understand the relationship between tRNA supply and codon demand in cancer states and could help guide the development of new cancer therapeutics.
Additional Links: PMID-34321100
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34321100,
year = {2021},
author = {Meyer, D and Kames, J and Bar, H and Komar, AA and Alexaki, A and Ibla, J and Hunt, RC and Santana-Quintero, LV and Golikov, A and DiCuccio, M and Kimchi-Sarfaty, C},
title = {Distinct signatures of codon and codon pair usage in 32 primary tumor types in the novel database CancerCoCoPUTs for cancer-specific codon usage.},
journal = {Genome medicine},
volume = {13},
number = {1},
pages = {122},
pmid = {34321100},
issn = {1756-994X},
support = {R01 HL151392/HL/NHLBI NIH HHS/United States ; },
mesh = {Biomarkers, Tumor ; *Codon ; *Codon Usage ; Computational Biology/*methods ; *Databases, Genetic ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Genome-Wide Association Study ; Genomics/methods ; Humans ; Kaplan-Meier Estimate ; Neoplasms/*diagnosis/*genetics/mortality ; Prognosis ; Transcriptome ; },
abstract = {BACKGROUND: Gene expression is highly variable across tissues of multi-cellular organisms, influencing the codon usage of the tissue-specific transcriptome. Cancer disrupts the gene expression pattern of healthy tissue resulting in altered codon usage preferences. The topic of codon usage changes as they relate to codon demand, and tRNA supply in cancer is of growing interest.
METHODS: We analyzed transcriptome-weighted codon and codon pair usage based on The Cancer Genome Atlas (TCGA) RNA-seq data from 6427 solid tumor samples and 632 normal tissue samples. This dataset represents 32 cancer types affecting 11 distinct tissues. Our analysis focused on tissues that give rise to multiple solid tumor types and cancer types that are present in multiple tissues.
RESULTS: We identified distinct patterns of synonymous codon usage changes for different cancer types affecting the same tissue. For example, a substantial increase in GGT-glycine was observed in invasive ductal carcinoma (IDC), invasive lobular carcinoma (ILC), and mixed invasive ductal and lobular carcinoma (IDLC) of the breast. Change in synonymous codon preference favoring GGT correlated with change in synonymous codon preference against GGC in IDC and IDLC, but not in ILC. Furthermore, we examined the codon usage changes between paired healthy/tumor tissue from the same patient. Using clinical data from TCGA, we conducted a survival analysis of patients based on the degree of change between healthy and tumor-specific codon usage, revealing an association between larger changes and increased mortality. We have also created a database that contains cancer-specific codon and codon pair usage data for cancer types derived from TCGA, which represents a comprehensive tool for codon-usage-oriented cancer research.
CONCLUSIONS: Based on data from TCGA, we have highlighted tumor type-specific signatures of codon and codon pair usage. Paired data revealed variable changes to codon usage patterns, which must be considered when designing personalized cancer treatments. The associated database, CancerCoCoPUTs, represents a comprehensive resource for codon and codon pair usage in cancer and is available at https://dnahive.fda.gov/review/cancercocoputs/ . These findings are important to understand the relationship between tRNA supply and codon demand in cancer states and could help guide the development of new cancer therapeutics.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Biomarkers, Tumor
*Codon
*Codon Usage
Computational Biology/*methods
*Databases, Genetic
Gene Expression Profiling
Gene Expression Regulation, Neoplastic
Genome-Wide Association Study
Genomics/methods
Humans
Kaplan-Meier Estimate
Neoplasms/*diagnosis/*genetics/mortality
Prognosis
Transcriptome
RevDate: 2023-02-05
CmpDate: 2021-08-17
Plasmodium falciparum transcription in different clinical presentations of malaria associates with circulation time of infected erythrocytes.
Nature communications, 12(1):4711.
Following Plasmodium falciparum infection, individuals can remain asymptomatic, present with mild fever in uncomplicated malaria cases, or show one or more severe malaria symptoms. Several studies have investigated associations between parasite transcription and clinical severity, but no broad conclusions have yet been drawn. Here, we apply a series of bioinformatic approaches based on P. falciparum's tightly regulated transcriptional pattern during its ~48-hour intraerythrocytic developmental cycle (IDC) to publicly available transcriptomes of parasites obtained from malaria cases of differing clinical severity across multiple studies. Our analysis shows that within each IDC, the circulation time of infected erythrocytes without sequestering to endothelial cells decreases with increasing parasitaemia or disease severity. Accordingly, we find that the size of circulating infected erythrocytes is inversely related to parasite density and disease severity. We propose that enhanced adhesiveness of infected erythrocytes leads to a rapid increase in parasite burden, promoting higher parasitaemia and increased disease severity.
Additional Links: PMID-34330920
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34330920,
year = {2021},
author = {Thomson-Luque, R and Votborg-Novél, L and Ndovie, W and Andrade, CM and Niangaly, M and Attipa, C and Lima, NF and Coulibaly, D and Doumtabe, D and Guindo, B and Tangara, B and Maiga, F and Kone, AK and Traore, K and Kayentao, K and Ongoiba, A and Doumbo, S and Thera, MA and Traoré, B and Seydel, K and Osório, NS and Portugal, S},
title = {Plasmodium falciparum transcription in different clinical presentations of malaria associates with circulation time of infected erythrocytes.},
journal = {Nature communications},
volume = {12},
number = {1},
pages = {4711},
pmid = {34330920},
issn = {2041-1723},
support = {/WT_/Wellcome Trust/United Kingdom ; R01 AI099628/AI/NIAID NIH HHS/United States ; },
mesh = {Blood Circulation Time ; Erythrocytes/parasitology ; Gene Expression Profiling/*methods ; *Gene Expression Regulation, Bacterial ; Gene Ontology ; Genes, Bacterial/genetics ; Humans ; Malaria, Falciparum/*blood/parasitology/physiopathology ; Parasitemia/*blood/parasitology/physiopathology ; Plasmodium falciparum/*genetics/physiology ; },
abstract = {Following Plasmodium falciparum infection, individuals can remain asymptomatic, present with mild fever in uncomplicated malaria cases, or show one or more severe malaria symptoms. Several studies have investigated associations between parasite transcription and clinical severity, but no broad conclusions have yet been drawn. Here, we apply a series of bioinformatic approaches based on P. falciparum's tightly regulated transcriptional pattern during its ~48-hour intraerythrocytic developmental cycle (IDC) to publicly available transcriptomes of parasites obtained from malaria cases of differing clinical severity across multiple studies. Our analysis shows that within each IDC, the circulation time of infected erythrocytes without sequestering to endothelial cells decreases with increasing parasitaemia or disease severity. Accordingly, we find that the size of circulating infected erythrocytes is inversely related to parasite density and disease severity. We propose that enhanced adhesiveness of infected erythrocytes leads to a rapid increase in parasite burden, promoting higher parasitaemia and increased disease severity.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Blood Circulation Time
Erythrocytes/parasitology
Gene Expression Profiling/*methods
*Gene Expression Regulation, Bacterial
Gene Ontology
Genes, Bacterial/genetics
Humans
Malaria, Falciparum/*blood/parasitology/physiopathology
Parasitemia/*blood/parasitology/physiopathology
Plasmodium falciparum/*genetics/physiology
RevDate: 2021-08-03
Metastatic Breast Cancer Masked as Constipation.
Cureus, 13(6):e16031.
Even though screening mammography has been attributed to decreased mortality in recent decades, breast cancer is one of the leading causes of death among women in the United States. Disruption of screening protocols and variation in the presentation may alter the course of detection and management. We report a case of hormone receptor-positive breast cancer that presented as vague gastrointestinal symptoms in a patient with a delayed workup for a self-discovered breast lump during the coronavirus disease global pandemic. A 48-year-old woman with a history of gastroesophageal reflux and hypertension presented to the emergency department with primary complaints of constipation and abdominal distention with associated flatus and nausea. Vitals were within normal limits, and physical examination was notable for abdominal distention and diffuse tenderness to palpation. Labs demonstrated hypercalcemia and an unremarkable complete blood count. A chest X-ray showed a right hilar mass, and a CT chest revealed multiple lytic bone lesions diffusely scattered throughout the entire skeleton; no hilar mass was noted on the CT chest. A CT scan of the abdomen and pelvis incidentally revealed a right breast mass. A bone marrow biopsy identified invasive ductal carcinoma. Mammography and biopsy of the breast mass identified estrogen receptor/progesterone receptor-positive invasive ductal carcinoma, consistent with the bone marrow biopsy, confirming the diagnosis of metastatic breast cancer. Unpredicted disruptions in screening processes may result in delayed cancer diagnoses. This case illustrates the importance of routine self-breast examinations, screening mammography, and maintaining a broad differential diagnosis.
Additional Links: PMID-34336518
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34336518,
year = {2021},
author = {McCray, E and Naron, R and White, S and Messersmith, S and Stewart, C},
title = {Metastatic Breast Cancer Masked as Constipation.},
journal = {Cureus},
volume = {13},
number = {6},
pages = {e16031},
pmid = {34336518},
issn = {2168-8184},
abstract = {Even though screening mammography has been attributed to decreased mortality in recent decades, breast cancer is one of the leading causes of death among women in the United States. Disruption of screening protocols and variation in the presentation may alter the course of detection and management. We report a case of hormone receptor-positive breast cancer that presented as vague gastrointestinal symptoms in a patient with a delayed workup for a self-discovered breast lump during the coronavirus disease global pandemic. A 48-year-old woman with a history of gastroesophageal reflux and hypertension presented to the emergency department with primary complaints of constipation and abdominal distention with associated flatus and nausea. Vitals were within normal limits, and physical examination was notable for abdominal distention and diffuse tenderness to palpation. Labs demonstrated hypercalcemia and an unremarkable complete blood count. A chest X-ray showed a right hilar mass, and a CT chest revealed multiple lytic bone lesions diffusely scattered throughout the entire skeleton; no hilar mass was noted on the CT chest. A CT scan of the abdomen and pelvis incidentally revealed a right breast mass. A bone marrow biopsy identified invasive ductal carcinoma. Mammography and biopsy of the breast mass identified estrogen receptor/progesterone receptor-positive invasive ductal carcinoma, consistent with the bone marrow biopsy, confirming the diagnosis of metastatic breast cancer. Unpredicted disruptions in screening processes may result in delayed cancer diagnoses. This case illustrates the importance of routine self-breast examinations, screening mammography, and maintaining a broad differential diagnosis.},
}
RevDate: 2022-01-05
CmpDate: 2022-01-05
Expression Patterns of Plasmodium falciparum Clonally Variant Genes at the Onset of a Blood Infection in Malaria-Naive Humans.
mBio, 12(4):e0163621.
Clonally variant genes (CVGs) play fundamental roles in the adaptation of Plasmodium falciparum to fluctuating conditions of the human host. However, their expression patterns under the natural conditions of the blood circulation have been characterized in detail for only a few specific gene families. Here, we provide a detailed characterization of the complete P. falciparum transcriptome across the full intraerythrocytic development cycle (IDC) at the onset of a blood infection in malaria-naive human volunteers. We found that the vast majority of transcriptional differences between parasites obtained from the volunteers and the parental parasite line maintained in culture occurred in CVGs. In particular, we observed a major increase in the transcript levels of most genes of the pfmc-2tm and gbp families and of specific genes of other families, such as phist, hyp10, rif, or stevor, in addition to previously reported changes in var and clag3 gene expression. Increased transcript levels of individual pfmc-2tm, rif, and stevor genes involved activation in small subsets of parasites. Large transcriptional differences correlated with changes in the distribution of heterochromatin, confirming their epigenetic nature. Furthermore, the similar expression of several CVGs between parasites collected at different time points along the blood infection suggests that the epigenetic memory for multiple CVG families is lost during transmission stages, resulting in a reset of their transcriptional state. Finally, the CVG expression patterns observed in a volunteer likely infected by a single sporozoite suggest that new epigenetic patterns are established during liver stages. IMPORTANCE The ability of malaria parasites to adapt to changes in the human blood environment, where they produce long-term infection associated with clinical symptoms, is fundamental for their survival. CVGs, regulated at the epigenetic level, play a major role in this adaptive process, as changes in the expression of these genes result in alterations in the antigenic and functional properties of the parasites. However, how these genes are expressed under the natural conditions of the human circulation and how their expression is affected by passage through transmission stages are not well understood. Here, we provide a comprehensive characterization of the expression patterns of these genes at the onset of human blood infections, which reveals major differences with in vitro-cultured parasites. We also show that, during transmission stages, the previous expression patterns for many CVG families are lost, and new patterns are established.
Additional Links: PMID-34340541
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34340541,
year = {2021},
author = {Pickford, AK and Michel-Todó, L and Dupuy, F and Mayor, A and Alonso, PL and Lavazec, C and Cortés, A},
title = {Expression Patterns of Plasmodium falciparum Clonally Variant Genes at the Onset of a Blood Infection in Malaria-Naive Humans.},
journal = {mBio},
volume = {12},
number = {4},
pages = {e0163621},
pmid = {34340541},
issn = {2150-7511},
support = {/WT_/Wellcome Trust/United Kingdom ; },
mesh = {Antigens, Protozoan/immunology ; *Gene Expression Profiling ; *Genetic Variation ; Host-Parasite Interactions/*genetics/immunology ; Humans ; Malaria, Falciparum/immunology/*parasitology ; Plasmodium falciparum/*genetics/immunology ; Protozoan Proteins/*genetics/immunology ; Transcriptome ; },
abstract = {Clonally variant genes (CVGs) play fundamental roles in the adaptation of Plasmodium falciparum to fluctuating conditions of the human host. However, their expression patterns under the natural conditions of the blood circulation have been characterized in detail for only a few specific gene families. Here, we provide a detailed characterization of the complete P. falciparum transcriptome across the full intraerythrocytic development cycle (IDC) at the onset of a blood infection in malaria-naive human volunteers. We found that the vast majority of transcriptional differences between parasites obtained from the volunteers and the parental parasite line maintained in culture occurred in CVGs. In particular, we observed a major increase in the transcript levels of most genes of the pfmc-2tm and gbp families and of specific genes of other families, such as phist, hyp10, rif, or stevor, in addition to previously reported changes in var and clag3 gene expression. Increased transcript levels of individual pfmc-2tm, rif, and stevor genes involved activation in small subsets of parasites. Large transcriptional differences correlated with changes in the distribution of heterochromatin, confirming their epigenetic nature. Furthermore, the similar expression of several CVGs between parasites collected at different time points along the blood infection suggests that the epigenetic memory for multiple CVG families is lost during transmission stages, resulting in a reset of their transcriptional state. Finally, the CVG expression patterns observed in a volunteer likely infected by a single sporozoite suggest that new epigenetic patterns are established during liver stages. IMPORTANCE The ability of malaria parasites to adapt to changes in the human blood environment, where they produce long-term infection associated with clinical symptoms, is fundamental for their survival. CVGs, regulated at the epigenetic level, play a major role in this adaptive process, as changes in the expression of these genes result in alterations in the antigenic and functional properties of the parasites. However, how these genes are expressed under the natural conditions of the human circulation and how their expression is affected by passage through transmission stages are not well understood. Here, we provide a comprehensive characterization of the expression patterns of these genes at the onset of human blood infections, which reveals major differences with in vitro-cultured parasites. We also show that, during transmission stages, the previous expression patterns for many CVG families are lost, and new patterns are established.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Antigens, Protozoan/immunology
*Gene Expression Profiling
*Genetic Variation
Host-Parasite Interactions/*genetics/immunology
Humans
Malaria, Falciparum/immunology/*parasitology
Plasmodium falciparum/*genetics/immunology
Protozoan Proteins/*genetics/immunology
Transcriptome
RevDate: 2025-05-30
CmpDate: 2021-10-25
Reliability of the Urinary Symptom Questionnaires for people with neurogenic bladder (USQNB) who void or use indwelling catheters.
Spinal cord, 59(9):939-947.
STUDY DESIGN: This is a descriptive psychometrics study.
OBJECTIVES: Neurogenic lower urinary tract dysfunction (NLUTD), also called Neurogenic Bladder (NB), is a common and disruptive condition in a variety of neurologic diagnoses. Our team developed patient-centered instruments, Urinary Symptom Questionnaires for people with neurogenic bladder (USQNB), specific to people with NLUTD who manage their bladders with intermittent catheterization (IC), indwelling catheters (IDC), or who void (V). This article reports evidence of reliability of the IDC and V instruments.
SETTING: Online surveys completed by individuals in the United States with NLUTD due to spinal cord injury (SCI), or multiple sclerosis (MS) who manage their bladder with IDC (SCI, n = 306), or by voiding (SCI, n = 103; MS, n = 383).
METHODS: Reliability estimates were based on endorsement of the items on the USQNB-IDC and USQNB-V. Reliability evidence was representativeness of these symptoms for a national sample (by determining if endorsement > 10%); internal consistency estimates (by Cronbach's alpha and item correlation coefficient, ICC); and interrelatedness of the items (by inferred Bayesian network, BN). We also tested whether a one-factor conceptualization of "urinary symptoms in NLUTD" was supportable for either instrument.
RESULTS: All items were endorsed by >20% of our samples. Urine quality symptoms tended to be the most commonly endorsed on both instruments. Cronbach's alpha and ICC estimates were high (>0.74), but not suggestive of redundancy. BNs showed interpretable associations among the items, and did not discover uninterpretable or unexpected associations. Neither instrument fit a one-factor model, as expected.
CONCLUSIONS: The USQNB-IDC and USQNB-V instruments show sufficient, multidimensional reliability for implementation and further study.
Additional Links: PMID-34345005
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34345005,
year = {2021},
author = {Tractenberg, RE and Frost, JK and Yumoto, F and Rounds, AK and Ljungberg, IH and Groah, SL},
title = {Reliability of the Urinary Symptom Questionnaires for people with neurogenic bladder (USQNB) who void or use indwelling catheters.},
journal = {Spinal cord},
volume = {59},
number = {9},
pages = {939-947},
pmid = {34345005},
issn = {1476-5624},
support = {90IF0121/ACL/ACL HHS/United States ; 385077//Craig H. Neilsen Foundation/ ; },
mesh = {Bayes Theorem ; Catheters, Indwelling ; Humans ; Reproducibility of Results ; *Spinal Cord Injuries/complications/diagnosis ; Surveys and Questionnaires ; United States ; *Urinary Bladder, Neurogenic/diagnosis/etiology ; },
abstract = {STUDY DESIGN: This is a descriptive psychometrics study.
OBJECTIVES: Neurogenic lower urinary tract dysfunction (NLUTD), also called Neurogenic Bladder (NB), is a common and disruptive condition in a variety of neurologic diagnoses. Our team developed patient-centered instruments, Urinary Symptom Questionnaires for people with neurogenic bladder (USQNB), specific to people with NLUTD who manage their bladders with intermittent catheterization (IC), indwelling catheters (IDC), or who void (V). This article reports evidence of reliability of the IDC and V instruments.
SETTING: Online surveys completed by individuals in the United States with NLUTD due to spinal cord injury (SCI), or multiple sclerosis (MS) who manage their bladder with IDC (SCI, n = 306), or by voiding (SCI, n = 103; MS, n = 383).
METHODS: Reliability estimates were based on endorsement of the items on the USQNB-IDC and USQNB-V. Reliability evidence was representativeness of these symptoms for a national sample (by determining if endorsement > 10%); internal consistency estimates (by Cronbach's alpha and item correlation coefficient, ICC); and interrelatedness of the items (by inferred Bayesian network, BN). We also tested whether a one-factor conceptualization of "urinary symptoms in NLUTD" was supportable for either instrument.
RESULTS: All items were endorsed by >20% of our samples. Urine quality symptoms tended to be the most commonly endorsed on both instruments. Cronbach's alpha and ICC estimates were high (>0.74), but not suggestive of redundancy. BNs showed interpretable associations among the items, and did not discover uninterpretable or unexpected associations. Neither instrument fit a one-factor model, as expected.
CONCLUSIONS: The USQNB-IDC and USQNB-V instruments show sufficient, multidimensional reliability for implementation and further study.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Bayes Theorem
Catheters, Indwelling
Humans
Reproducibility of Results
*Spinal Cord Injuries/complications/diagnosis
Surveys and Questionnaires
United States
*Urinary Bladder, Neurogenic/diagnosis/etiology
RevDate: 2021-10-25
CmpDate: 2021-10-25
Validity of the Urinary Symptom Questionnaires for people with neurogenic bladder (USQNB) who void or use indwelling catheters.
Spinal cord, 59(9):948-958.
STUDY DESIGN: Descriptive Psychometrics Study OBJECTIVES: Neurogenic lower urinary tract dysfunction (NLUTD), or "neurogenic bladder" is a common and disruptive condition for individuals with spinal cord injury (SCI) and disease (including multiple sclerosis, MS). Our team has developed patient-centered instruments of urinary symptoms specific to patients with NLUTD, across bladder management methods. Validity evidence is needed to support the use of two new instruments, Urinary Symptom Questionnaires for people with Neurogenic Bladder (USQNB) for those who manage their bladder with indwelling catheters (IDC), or who void (V).
SETTING: Online surveys completed by individuals in the United States with NLUTD due to either SCI or MS who manage their bladder with indwelling catheters (SCI, n = 306; MS, n = 8), or by voiding (SCI, n = 103; MS, n = 383). A total of n = 381 USQNB-IDC respondents (five control groups), and 351 USQNB-V respondents (four control groups), contributed to our convergent and divergent validity evidence.
METHODS: Data were collected online to estimate key aspects of psychometric validity (content, reflection of the construct to be measured; face, recognizability of the contents as representing the construct to be measured; structural, the extent to which the instrument captures recognizable dimensions of the construct to be measured). Divergent and convergent validity evidence was derived from multiple control groups, while evidence of criterion validity was derived from attribution of each item to their experience "with a UTI".
RESULTS: Evidence of face, content, criterion, convergent, and divergent validity was compiled for each instrument.
CONCLUSIONS: The instruments demonstrate adequate, multi-dimensional, validity evidence to recommend their use for decision-making by patients, clinicians, and researchers.
Additional Links: PMID-34349234
PubMed:
Citation:
show bibtex listing
hide bibtex listing
@article {pmid34349234,
year = {2021},
author = {Tractenberg, RE and Frost, JK and Yumoto, F and Rounds, AK and Ljungberg, IH and Groah, SL},
title = {Validity of the Urinary Symptom Questionnaires for people with neurogenic bladder (USQNB) who void or use indwelling catheters.},
journal = {Spinal cord},
volume = {59},
number = {9},
pages = {948-958},
pmid = {34349234},
issn = {1476-5624},
support = {90IF0121/ACL/ACL HHS/United States ; 385077//Craig H. Neilsen Foundation/ ; 90IF0121/ACL/ACL HHS/United States ; 90IF0121/ACL/ACL HHS/United States ; },
mesh = {Catheters, Indwelling ; Humans ; Psychometrics ; *Spinal Cord Injuries/complications/diagnosis ; Surveys and Questionnaires ; *Urinary Bladder, Neurogenic/diagnosis/etiology ; },
abstract = {STUDY DESIGN: Descriptive Psychometrics Study OBJECTIVES: Neurogenic lower urinary tract dysfunction (NLUTD), or "neurogenic bladder" is a common and disruptive condition for individuals with spinal cord injury (SCI) and disease (including multiple sclerosis, MS). Our team has developed patient-centered instruments of urinary symptoms specific to patients with NLUTD, across bladder management methods. Validity evidence is needed to support the use of two new instruments, Urinary Symptom Questionnaires for people with Neurogenic Bladder (USQNB) for those who manage their bladder with indwelling catheters (IDC), or who void (V).
SETTING: Online surveys completed by individuals in the United States with NLUTD due to either SCI or MS who manage their bladder with indwelling catheters (SCI, n = 306; MS, n = 8), or by voiding (SCI, n = 103; MS, n = 383). A total of n = 381 USQNB-IDC respondents (five control groups), and 351 USQNB-V respondents (four control groups), contributed to our convergent and divergent validity evidence.
METHODS: Data were collected online to estimate key aspects of psychometric validity (content, reflection of the construct to be measured; face, recognizability of the contents as representing the construct to be measured; structural, the extent to which the instrument captures recognizable dimensions of the construct to be measured). Divergent and convergent validity evidence was derived from multiple control groups, while evidence of criterion validity was derived from attribution of each item to their experience "with a UTI".
RESULTS: Evidence of face, content, criterion, convergent, and divergent validity was compiled for each instrument.
CONCLUSIONS: The instruments demonstrate adequate, multi-dimensional, validity evidence to recommend their use for decision-making by patients, clinicians, and researchers.},
}
MeSH Terms:
show MeSH Terms
hide MeSH Terms
Catheters, Indwelling
Humans
Psychometrics
*Spinal Cord Injuries/complications/diagnosis
Surveys and Questionnaires
*Urinary Bladder, Neurogenic/diagnosis/etiology
▼ ▼ LOAD NEXT 100 CITATIONS
RJR Experience and Expertise
Researcher
Robbins holds BS, MS, and PhD degrees in the life sciences. He served as a tenured faculty member in the Zoology and Biological Science departments at Michigan State University. He is currently exploring the intersection between genomics, microbial ecology, and biodiversity — an area that promises to transform our understanding of the biosphere.
Educator
Robbins has extensive experience in college-level education: At MSU he taught introductory biology, genetics, and population genetics. At JHU, he was an instructor for a special course on biological database design. At FHCRC, he team-taught a graduate-level course on the history of genetics. At Bellevue College he taught medical informatics.
Administrator
Robbins has been involved in science administration at both the federal and the institutional levels. At NSF he was a program officer for database activities in the life sciences, at DOE he was a program officer for information infrastructure in the human genome project. At the Fred Hutchinson Cancer Research Center, he served as a vice president for fifteen years.
Technologist
Robbins has been involved with information technology since writing his first Fortran program as a college student. At NSF he was the first program officer for database activities in the life sciences. At JHU he held an appointment in the CS department and served as director of the informatics core for the Genome Data Base. At the FHCRC he was VP for Information Technology.
Publisher
While still at Michigan State, Robbins started his first publishing venture, founding a small company that addressed the short-run publishing needs of instructors in very large undergraduate classes. For more than 20 years, Robbins has been operating The Electronic Scholarly Publishing Project, a web site dedicated to the digital publishing of critical works in science, especially classical genetics.
Speaker
Robbins is well-known for his speaking abilities and is often called upon to provide keynote or plenary addresses at international meetings. For example, in July, 2012, he gave a well-received keynote address at the Global Biodiversity Informatics Congress, sponsored by GBIF and held in Copenhagen. The slides from that talk can be seen HERE.
Facilitator
Robbins is a skilled meeting facilitator. He prefers a participatory approach, with part of the meeting involving dynamic breakout groups, created by the participants in real time: (1) individuals propose breakout groups; (2) everyone signs up for one (or more) groups; (3) the groups with the most interested parties then meet, with reports from each group presented and discussed in a subsequent plenary session.
Designer
Robbins has been engaged with photography and design since the 1960s, when he worked for a professional photography laboratory. He now prefers digital photography and tools for their precision and reproducibility. He designed his first web site more than 20 years ago and he personally designed and implemented this web site. He engages in graphic design as a hobby.
RJR Picks from Around the Web (updated 11 MAY 2018 )
Old Science
Weird Science
Treating Disease with Fecal Transplantation
Fossils of miniature humans (hobbits) discovered in Indonesia
Paleontology
Dinosaur tail, complete with feathers, found preserved in amber.
Astronomy
Mysterious fast radio burst (FRB) detected in the distant universe.
Big Data & Informatics
Big Data: Buzzword or Big Deal?
Hacking the genome: Identifying anonymized human subjects using publicly available data.