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https://www.readbyqxmd.com/read/28454465/microarray-based-analysis-of-gene-regulation-by-mesenchymal-stem-cells-in-breast-cancer
#1
Ming Zhang, Chang E Gao, Wen Hui Li, Yi Yang, Li Chang, Jian Dong, Yan Xin Ren, De Dian Chen
Breast cancer is one of the most common malignant tumors with a high case-fatality rate among women. The present study aimed to investigate the effects of mesenchymal stem cells (MSCs) on breast cancer by exploring the potential underlying molecular mechanisms. The expression profile of GSE43306, which refers to MDA-MB-231 cells with or without a 1:1 ratio of MSCs, was downloaded from Gene Expression Omnibus database for differentially expressed gene (DEG) screening. The Database for Annotation, Visualization and Integrated Discovery was used for gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis for DEGs...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454353/prmt8-demonstrates-variant-specific-expression-in-cancer-cells-and-correlates-with-patient-survival-in-breast-ovarian-and-gastric-cancer
#2
Sarah J Hernandez, David M Dolivo, Tanja Dominko
Recent emphasis has been placed on the role of epigenetic regulators and epigenetic marks as biomarkers for cancer diagnosis and prognosis, and as therapeutic targets for treatment. One such class of regulators is the protein arginine methyltransferase (PRMT) family. The present study examined available curated data regarding the expression and alteration of one of the least studied PRMT family members, PRMT8, in various types of cancer and cancer cell lines. Publicly available cancer data on PRMT8 expression were examined using the Human Protein Atlas and the Kaplan-Meier Plotter, and reverse transcription-polymerase chain reaction was used to screen a selection of human cell lines for variant-specific PRMT8 expression...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454278/the-associated-pyrazolopyrimidines-pp1-and-pp2-inhibit-protein-tyrosine-kinase-6-activity-and-suppress-breast-cancer-cell-proliferation
#3
Hyun Jae Shim, Han Ie Kim, Seung-Taek Lee
Protein tyrosine kinase (PTK)6, also known as breast tumor kinase, is a non-receptor tyrosine kinase. It is closely associated with, but evolutionarily distinct from, the Src family members. PTK6 has a role in proliferation, migration and invasion in various cancers, and therefore has been suggested as a potentially valuable therapeutic target. In an attempt to develop PTK6 inhibitors, chemicals known to inhibit various kinases were screened for their ability to inhibit PTK6. Pyrazolopyrimidine (PP)1, PP2 and a lymphocyte-specific protein tyrosine kinase inhibitor strongly inhibited the catalytic activity of PTK6 in vitro...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453516/on-a-fractional-order-calculus-model-in-diffusion-weighted-breast-imaging-to-differentiate-between-malignant-and-benign-breast-lesions-detected-on-x-ray-screening-mammography
#4
Sebastian Bickelhaupt, Franziska Steudle, Daniel Paech, Anna Mlynarska, Tristan Anselm Kuder, Wolfgang Lederer, Heidi Daniel, Martin Freitag, Stefan Delorme, Heinz-Peter Schlemmer, Frederik Bernd Laun
OBJECTIVE: To evaluate a fractional order calculus (FROC) model in diffusion weighted imaging to differentiate between malignant and benign breast lesions in breast cancer screening work-up using recently introduced parameters (βFROC, DFROC and μFROC). MATERIALS AND METHODS: This retrospective analysis within a prospective IRB-approved study included 51 participants (mean 58.4 years) after written informed consent. All patients had suspicious screening mammograms and indication for biopsy...
2017: PloS One
https://www.readbyqxmd.com/read/28447238/effects-of-hepatitis-c-virus-infection-on-the-safety-of-chemotherapy-for-breast-cancer-patients
#5
Yu Liu, Zhan-Yi Li, Jia-Ni Wang, Xi Li, Qun-Ai Huang, Yong Huang
PURPOSE: Hepatitis C virus (HCV) is one of the major pathogens of chronic viral hepatitis, and approximately 38 million patients are infected with HCV in China. However, little information is available on the effect of HCV infection during chemotherapy for breast cancer and the impact of HCV infection on the toxicity of chemotherapy and targeted therapy. METHODS: We performed a retrospective survey of 835 patients who were diagnosed with breast cancer between January 2010 and December 2015 at our institution...
April 26, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28445975/functional-fgfr4-gly388arg-polymorphism-contributes-to-cancer-susceptibility-evidence-from-meta-analysis
#6
Si-Wei Xiong, Jianqun Ma, Fen Feng, Wen Fu, Shan-Rong Shu, Tianjiao Ma, Caixia Wu, Guo-Chang Liu, Jinhong Zhu
Fibroblast growth factor receptor 4 (FGFR4) is a member of receptor tyrosine kinase family. A functional Gly388Arg (rs351855 G>A) polymorphism in FGFR4 gene causes a glycine-to-arginine change at codon 388 within the transmembrane domain of the receptor. Although the FGFR4 rs351855 G>A polymorphism has been implicated in cancer development, its association with cancer risk remains controversial. Here, we have systematically analyzed the association between the rs351855 G>A polymorphism and cancer risk by performing a meta-analysis of 27 studies consisting of 8,682 cases and 9,731 controls...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445277/cancer-studies-based-on-secondary-data-analysis-of-the-taiwan-s-national-health-insurance-research-database-a-computational-text-analysis-and-visualization-study
#7
Jui-Kun Chiang, Chih-Wen Lin, Chun-Lung Wang, Malcolm Koo, Yee-Hsin Kao
There has been a surge in the academic publication output based on secondary analyses of the data from the Taiwan's National Health Insurance claim records. It has become a challenge to comprehend such a rapid expansion of the literature. Therefore, this study aimed to explore the conceptual content of National Health Insurance Research Database-based cancer research, using the abstract of articles extracted from PubMed between 2002 and 2015. Search terms including "National Health Insurance Research Database (NHIRD) AND Taiwan," "Taiwan AND population-based," and "Taiwan AND nationwide" were used to search in PubMed with the publication date limited to between 1997 and 2015...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444996/breast-arterial-calcification-association-with-coronary-artery-calcium-scoring-and-implications-for-cardiovascular-risk-assessment-in-women
#8
REVIEW
Angela J Ryan, Andrew D Choi, Brian G Choi, Jannet F Lewis
Breast arterial calcification (BAC) is a type of medial artery calcification that can be seen incidentally on mammography. Studies have suggested association of BAC with cardiovascular risk factors, coronary artery disease (CAD), and cardiovascular morbidity and mortality. Recently published studies have also suggested a modest correlation of BAC with coronary artery calcium (CAC) scoring. Roughly 40 million mammograms are already performed annually in the United States with overlap in patients that undergo CAD screening via CAC scoring...
April 26, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28444642/breast-self-exam-and-patient-interval-associate-with-advanced-breast-cancer-and-treatment-delay-in-mexican-women
#9
E Leon-Rodriguez, C Molina-Calzada, M M Rivera-Franco, A Campos-Castro
PURPOSE: The objective of this study was to compare treatment intervals in breast cancer patients according to the detection method (breast self-exam vs screening). PATIENTS AND METHODS: We conducted a retrospective analysis including 291 breast cancer patients at a Mexican tertiary referral hospital. RESULTS: Breast cancer detection method was mostly breast self-exam (60%). The median patient interval was 60.5 days, and was associated with marital status and socioeconomic level...
April 25, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28444534/metabolic-factors-anthropometric-measures-diet-and-physical-activity-in-long-term-breast-cancer-survivors-change-from-diagnosis-and-comparison-to-non-breast-cancer-controls
#10
Ana Elisa Lohmann, Marguerite Ennis, Sara K Taylor, Pamela J Goodwin
PURPOSE: We studied metabolic factors, diabetes, and anthropometric measurements at diagnosis and long-term follow-up (LTFU), mean 12.5 years post-diagnosis, in breast cancer (BC) survivors, and compared their status at LTFU to that of age-matched women without BC. Diet and physical activity were also assessed. METHOD: 535 non-diabetic BC patients treated at three University of Toronto hospitals were followed prospectively; 285 surviving patients, without distant recurrence, participated in a LTFU study...
April 25, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28444384/e-science-technologies-in-a-workflow-for-personalized-medicine-using-cancer-screening-as-a-case-study
#11
Ola Spjuth, Andreas Karlsson, Mark Clements, Keith Humphreys, Emma Ivansson, Jim Dowling, Martin Eklund, Alexandra Jauhiainen, Kamila Czene, Henrik Grönberg, Pär Sparén, Fredrik Wiklund, Abbas Cheddad, Þorgerður Pálsdóttir, Mattias Rantalainen, Linda Abrahamsson, Erwin Laure, Jan-Eric Litton, Juni Palmgren
Objective: We provide an e-Science perspective on the workflow from risk factor discovery and classification of disease to evaluation of personalized intervention programs. As case studies, we use personalized prostate and breast cancer screenings. Materials and Methods: We describe an e-Science initiative in Sweden, e-Science for Cancer Prevention and Control (eCPC), which supports biomarker discovery and offers decision support for personalized intervention strategies...
April 21, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28444227/incidence-and-prognosis-of-patients-with-brain-metastases-at-diagnosis-of-systemic-malignancy-a-population-based-study
#12
Daniel N Cagney, Allison M Martin, Paul J Catalano, Amanda J Redig, Nancy U Lin, Eudocia Q Lee, Patrick Y Wen, Ian F Dunn, Wenya Linda Bi, Stephanie E Weiss, Daphne A Haas-Kogan, Brian M Alexander, Ayal A Aizer
Background: Brain metastases are associated with significant morbidity and mortality. Population-level data describing the incidence and prognosis of patients with brain metastases are lacking. The aim of this study was to characterize the incidence and prognosis of patients with brain metastases at diagnosis of systemic malignancy using recently released data from the Surveillance, Epidemiology, and End Results (SEER) program. Methods: We identified 1,302,166 patients diagnosed with non-hematologic malignancies originating outside of the central nervous system between 2010-2013 and described the incidence proportion and survival of patients with brain metastases...
April 24, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28443199/overdiagnosis-of-breast-cancer-in-population-screening-does-it-make-breast-screening-worthless
#13
Nehmat Houssami
The risk of breast cancer (BC) overdiagnosis attributed to mammography screening is an unresolved issue, complicated by heterogeneity in the methodology of quantifying its magnitude, and both political and scientific elements surrounding interpretation of the evidence on this phenomenon. Evidence from randomized trials and also from observational studies shows that mammography screening reduces the risk of BC death; similarly, these studies provide sufficient evidence that overdiagnosis represents a serious harm from population breast screening...
February 2017: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28442756/crystal-structure-based-discovery-of-a-novel-synthesized-parp1-inhibitor-ol-1-with-apoptosis-inducing-mechanisms-in-triple-negative-breast-cancer
#14
Leilei Fu, Shuya Wang, Xuan Wang, Peiqi Wang, Yaxin Zheng, Dahong Yao, Mingrui Guo, Lan Zhang, Liang Ouyang
Poly (ADP-ribose) polymerase-1 (PARP1) is a highly conserved enzyme focused on the self-repair of cellular DNA damage. Until now, numbers of PARP inhibitors have been reported and used for breast cancer therapy in recent years, especially in TNBC. However, developing a new type PARP inhibitor with distinctive skeleton is alternatively promising strategy for TNBC therapy. In this study, based on co-crystallization studies and pharmacophore-docking-based virtual screening, we discovered a series of dihydrodibenzo[b,e]-oxepin compounds as PARP1 inhibitors...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28442704/discovery-of-an-enzyme-and-substrate-selective-inhibitor-of-adam10-using-an-exosite-binding-glycosylated-substrate
#15
Franck Madoux, Daniela Dreymuller, Jean-Phillipe Pettiloud, Radleigh Santos, Christoph Becker-Pauly, Andreas Ludwig, Gregg B Fields, Thomas Bannister, Timothy P Spicer, Mare Cudic, Louis D Scampavia, Dmitriy Minond
ADAM10 and ADAM17 have been shown to contribute to the acquired drug resistance of HER2-positive breast cancer in response to trastuzumab. The majority of ADAM10 and ADAM17 inhibitor development has been focused on the discovery of compounds that bind the active site zinc, however, in recent years, there has been a shift from active site to secondary substrate binding site (exosite) inhibitor discovery in order to identify non-zinc-binding molecules. In the present work a glycosylated, exosite-binding substrate of ADAM10 and ADAM17 was utilized to screen 370,276 compounds from the MLPCN collection...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28442298/how-to-study-and-overcome-tumor-heterogeneity-with-circulating-biomarkers-the-breast-cancer-case
#16
REVIEW
Valentina Appierto, Serena Di Cosimo, Carolina Reduzzi, Valentina Pala, Vera Cappelletti, Maria Grazia Daidone
Breast cancer ranks first among female cancer-related deaths in Western countries. As the primary tumor can often be controlled by surgical resection, the survival of women with breast cancer is closely linked to the incidence of distant metastases. Molecular screening by next generation sequencing highlighted the spatial and temporal heterogeneity of solid tumors as well as the clonal evolution of cancer cells during progression and under treatment pressure. Such findings question whether an optimal assessment of disease progression and a screening for druggable mutations should be based on molecular features of primary or recurrent/metastatic lesions and therefore represent a crucial element for failure or success of personalized medicine...
April 22, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28441797/breast-cancer-awareness-among-women-in-western-amazon-a-population-based-cross-sectional-study
#17
Marla Presa Raulino Schilling, Ilce Ferreira da Silva, Simone Perufo Opitz, Maria Fernanda de Sousa Oliveira Borges, Sergio Koifman, Koifman Rosalina Jorge
Background: A general lack of women`s awareness of breast cancer has been one of the barriers to screening and early presentation. Thus, the aim of this study was to evaluate levels of knowledge about risk factors, and early warning signs of breast cancer, and to determine factors associated with better levels of comprehension. Methods: A population-based cross-sectional study was carried out among 478 women over 40 years old, living in Rio Branco city, western Amazon. All were interviewed using the “Breast cancer knowledge, attitudes and practice scale”, developed by American Cancer Society...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28441745/breast-cancer-screening-programmes-across-the-who-european-region-differences-among-countries-based-on-national-income-level
#18
Emma Altobelli, Leonardo Rapacchietta, Paolo Matteo Angeletti, Luca Barbante, Filippo Valerio Profeta, Roberto Fagnano
Breast cancer (BC) is the most frequent tumour affecting women all over the world. In low- and middle-income countries, where its incidence is expected to rise further, BC seems set to become a public health emergency. The aim of the present study is to provide a systematic review of current BC screening programmes in WHO European Region to identify possible patterns. Multiple correspondence analysis was performed to evaluate the association among: measures of occurrence; GNI level; type of BC screening programme; organization of public information and awareness campaigns regarding primary prevention of modifiable risk factors; type of BC screening services; year of screening institution; screening coverage and data quality...
April 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28441548/ferrocenyl-and-organic-novobiocin-derivatives-synthesis-and-their-in-vitro-biological-activity
#19
Mziyanda Mbaba, Amanda N Mabhula, Natasha Boel, Adrienne L Edkins, Michelle Isaacs, Heinrich C Hoppe, Setshaba D Khanye
A focused series of novobiocin derivatives containing a ferrocene unit together with their corresponding organic novobiocin analogues have been synthesized in modest to good yields. These compounds were screened for biological activity against a chloroquine-sensitive strain of Plasmodium falciparum (3D7) and human breast cancer cell line (HCC38). With the exception of compounds 5c and 5d, the general trend observed is that incorporation of the ferrocene moiety into novobiocin scaffold resulted in compounds 6a-d/6f showing enhanced activity compared to organic analogues 5a-b and 5e-f...
April 13, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28441367/imaging-management-of-breast-density-a-controversial-risk-factor-for-breast-cancer
#20
Shannon Falcon, Angela Williams, Jared Weinfurtner, Jennifer S Drukteinis
BACKGROUND: Breast density is well recognized as an independent risk factor for the development of breast cancer. However, the magnitude of risk is controversial. As the public becomes increasingly aware of breast density as a risk factor, legislation and notification laws in relation to breast density have become common throughout the United States. Awareness of breast density as a risk factor for breast cancer presents new challenges for the clinician in the approach to the management and screening of women with dense breasts...
April 2017: Cancer Control: Journal of the Moffitt Cancer Center
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