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https://www.readbyqxmd.com/read/28454423/the-nutritional-herb-epimedium-grandiflorum-inhibits-the-growth-in-a-model-for-the-luminal-a-molecular-subtype-of-breast-cancer
#1
Nitin T Telang, Gou Li, Meena Katdare, Daniel W Sepkovic, H Leon Bradlow, George Y C Wong
The Luminal A subtype of breast cancer expresses the estrogen receptor (ER)-α and progesterone receptor (PR), but not the human epidermal growth factor receptor (HER)-2 oncogene. This subtype of breast cancer responds to endocrine therapy involving the use of selective estrogen receptor modulators and/or inhibitors of estrogen biosynthesis. However, these therapeutic agents are frequently associated with long-term systemic toxicity and acquired tumor resistance, emphasizing the need to identify non-toxic alternative treatments for chemo-endocrine therapy responsive breast cancer...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454329/overexpression-of-heat-shock-factor-1-is-associated-with-a-poor-prognosis-in-esophageal-squamous-cell-carcinoma
#2
Yukiko Tsukao, Makoto Yamasaki, Yasuhiro Miyazaki, Tomoki Makino, Tsuyoshi Takahashi, Yukinori Kurokawa, Hiroshi Miyata, Kiyokazu Nakajima, Shuji Takiguchi, Koshi Mimori, Masaki Mori, Yuichiro Doki
Heat-shock factor 1 (HSF1) is the primary regulator of the response to various stressors. A previous study showed that HSF1 expression is associated with a poor prognosis in breast cancer and hepatocellular carcinoma; however, the prognostic significance of HSF1 in esophageal squamous cell carcinoma (ESCC) is unknown. Therefore, the present study investigated the association between HSF1 expression and the clinicopathological parameters of patients, as well as the association between HSF1 expression, and heat shock protein (Hsp)27, Hsp70 and Hsp90 expression induced by HSF1, by cDNA microarray and immunohistochemistry analyses...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454227/chromobox-homolog-2-protein-a-novel-biomarker-for-predicting-prognosis-and-taxol-sensitivity-in-patients-with-breast-cancer
#3
Wang Yang Chen, Xian Yu Zhang, Tong Liu, Yang Liu, Ya Shuang Zhao, Da Pang
Polycomb group (PcG) complexes modify histones to silence tumor suppressor genes, which exhibit an important function in tumorigenesis and progression. The chromobox (Cbx) protein family is a critical component of PcG-mediated repression. Cbx2, a member of the Cbx protein family, is hypothesized to exhibit a vital role in breast cancer. In the present study, immunohistochemical analysis using tissue microarrays was performed to determine the levels of Cbx2 protein expression in breast cancer. The association between Cbx2 expression and the clinical features and prognosis of 455 breast cancer patients was analyzed...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454221/expression-of-inositol-requiring-enzyme-1%C3%AE-is-downregulated-in-colorectal-cancer
#4
Yalin Jiang, Yunfeng Zhou, Yufeng Zheng, Hong Guo, Lei Gao, Pan Chen, Dandan Feng, Ran Qi, Xiaozhen Li, Yongchao Chang, Fong-Fong Chu, Qiang Gao
The endoplasmic reticulum stress inositol-requiring enzyme (IRE) 1α/X-box binding protein (XBP) 1 signaling pathway is involved in the tumorigenesis of breast and prostate cancer. Mucin 2 (MUC2) protects colon tissues from the formation of tumors. In human colorectal cancer (CRC) the role of IRE1α, and its analogue, IRE1β, has yet to be elucidated. In the present study, the expression levels of IRE1α, IRE1β, un-spliced XBP1u, spliced XBP1s and MUC2 in surgically resected cancerous and adjacent non-cancerous tissues from patients with CRC were investigated...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454085/baseline-clinical-predictors-of-antitumor-response-to-the-parp-inhibitor-olaparib-in-germline-brca1-2-mutated-patients-with-advanced-ovarian-cancer
#5
Saeed Rafii, Charlie Gourley, Rajiv Kumar, Elena Geuna, Joo Ern Ang, Tzyvia Rye, Lee-May Chen, Ronnie Shapira-Frommer, Michael Friedlander, Ursula Matulonis, Jacques De Greve, Amit M Oza, Susana Banerjee, L Rhoda Molife, Martin E Gore, Stan B Kaye, Timothy A Yap
BACKGROUND: The PARP inhibitor olaparib was recently granted Food and Drug Administration (FDA) accelerated approval in patients with advanced BRCA1/2 mutation ovarian cancer. However, antitumor responses are observed in only approximately 40% of patients and the impact of baseline clinical factors on response to treatment remains unclear. Although platinum sensitivity has been suggested as a marker of response to PARP inhibitors, patients with platinum-resistant disease still respond to olaparib...
April 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28447308/determinants-of-stage-at-diagnosis-of-breast-cancer-in-nigerian-women-sociodemographic-breast-cancer-awareness-health-care-access-and-clinical-factors
#6
Elima Jedy-Agba, Valerie McCormack, Oluwole Olaomi, Wunmi Badejo, Monday Yilkudi, Terna Yawe, Emmanuel Ezeome, Iliya Salu, Elijah Miner, Ikechukwu Anosike, Sally N Adebamowo, Benjamin Achusi, Isabel Dos-Santos-Silva, Clement Adebamowo
PURPOSE: Advanced stage at diagnosis is a common feature of breast cancer in Sub-Saharan Africa (SSA), contributing to poor survival rates. Understanding its determinants is key to preventing deaths from this cancer in SSA. METHODS: Within the Nigerian Integrative Epidemiology of Breast Cancer Study, a multicentred case-control study on breast cancer, we studied factors affecting stage at diagnosis of cases, i.e. women diagnosed with histologically confirmed invasive breast cancer between January 2014 and July 2016 at six secondary and tertiary hospitals in Nigeria...
April 26, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28444642/breast-self-exam-and-patient-interval-associate-with-advanced-breast-cancer-and-treatment-delay-in-mexican-women
#7
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/28443860/fabrication-of-large-area-polymer-microfilter-membranes-and-their-application-for-particle-and-cell-enrichment
#8
Javier Alejandro Hernández-Castro, Kebin Li, Anne Meunier, David Juncker, Teodor Veres
A vacuum assisted UV micro-molding (VAUM) process is proposed for the fabrication of freestanding and defect-free polymer membranes based on a UV-curable methacrylate polymer (MD 700). VAUM is a highly flexible and powerful method for fabricating low cost, robust, large-area membranes over 9 × 9 cm(2) with pore sizes from 8 to 20 μm in diameter, 20 to 100 μm in thickness, high aspect ratio (the thickness of the polymer over the diameter of the hole is up to 15 : 1), high porosity, and a wide variety of geometrical characteristics...
April 26, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28443466/promoter-methylation-and-gene-polymorphism-are-two-independent-events-in-regulation-of-gstp1-gene-expression
#9
Aaliya Bhat, A Masood, K A Wani, Younus Ahmad Bhat, Bushra Nissar, Nuzhat Shaheen Khan, B A Ganai
Breast carcinogenesis is a multistep process, involving both genetic and epigenetic modification process of genes, involved in diverse pathways ranging from DNA repair to metabolic processes. This study was undertaken to assess the role of promoter methylation of GSTP1 gene, a member of glutathione-S-transferase family of enzymes, in relation to its expression, polymorphism, and clinicopathological parameters. Tissue samples were taken from breast cancer patients and paired with their normal adjacent tissues...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28440864/breast-cancer-stage-variation-and-survival-in-association-with-insurance-status-and-sociodemographic-factors-in-us-women-18-to-64-years-old
#10
Christine D Hsu, Xiaoyan Wang, David V Habif, Cynthia X Ma, Kimberly J Johnson
BACKGROUND: Few population-based studies have examined the association between health insurance status and breast cancer stage at diagnosis and survival. The degree to which sociodemographic characteristics explain this association is also unclear. This study examined associations between insurance status and sociodemographic characteristics and stage at diagnosis and survival. METHODS: Using the Surveillance, Epidemiology, and End Results 18 registries database, we identified 52,048 women aged 18 to 64 years who were diagnosed with breast cancer in 2007 and 2008...
April 25, 2017: Cancer
https://www.readbyqxmd.com/read/28440607/is-height-of-prognostic-significance-in-breast-cancer-cases
#11
Yasemin Benderli Cihan
Objective: The objective of this study was to investigate the correlation of height with prognosis and other prognostic factors in Turkish breast cancer cases. Materials and Methods: We retrospectively reviewed a total of 393 women aged between 26 and 88 years, diagnosed with stage 1-3 invasive ductal breast cancer, treated and followed-up in Kayseri Education and Research Hospital. Findings: The mean age at admission was 55.7 years; 77.6% were aged under 65, 56.7% were postmenopausal, 97.4% had undergone modified radical mastectomy, 47...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28435291/role-of-postmastectomy-radiotherapy-in-early-stage-t1-2n0-1m0-triple-negative-breast-cancer-a-systematic-review
#12
REVIEW
Fengxia Chen, Feifei Pu
Triple-negative breast cancer (TNBC), which represents 15%-20% of all breast cancers, is defined by the absence of estrogen receptor (ER) and progesterone receptor (PR) and overexpression of human epidermal growth factor receptor 2 (HER2). Owing to the absence of specific therapeutic targets and its aggressive biologic characteristics, TNBC patients often experience a high risk of disease progression and poor overall survival. Furthermore, TNBC exhibits an early pattern of recurrence with a peak recurrence risk at 2-3 years after surgery...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28435289/long-noncoding-rna-nbat-1-suppresses-tumorigenesis-and-predicts-favorable-prognosis-in-ovarian-cancer
#13
Changsheng Yan, Yi Jiang, Yicong Wan, Lin Zhang, Jinhui Liu, Shulin Zhou, Wenjun Cheng
Long noncoding RNA (lncRNA) has been proven to be involved in many biological processes in ovarian cancer (OC). However, the mechanism still remains unknown. In this study, we screened significantly downregulated NBAT-1, which has been proven to play a significant role in breast cancer, clear cell renal cell carcinoma, and neuroblastoma, but not in OC, in two independent datasets with relatively more samples (GSE18520 and GSE38666) from Gene Expression Omnibus. We found that lncRNA NBAT-1 was obviously downregulated in OC tissue compared to normal ovarian tissue (P<0...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28430808/quantification-of-hypoxia-related-gene-expression-as-a-potential-approach-for-clinical-outcome-prediction-in-breast-cancer
#14
Abderrahim El Guerrab, Anne Cayre, Fabrice Kwiatkowski, Maud Privat, Jean-Marc Rossignol, Fabrice Rossignol, Frédérique Penault-Llorca, Yves-Jean Bignon
Breast cancers are solid tumors frequently characterized by regions with low oxygen concentrations. Cellular adaptations to hypoxia are mainly determined by "hypoxia inducible factors" that mediate transcriptional modifications involved in drug resistance and tumor progression leading to metastasis and relapse occurrence. In this study, we investigated the prognostic value of hypoxia-related gene expression in breast cancer. A systematic review was conducted to select a set of 45 genes involved in hypoxia signaling pathways and breast tumor progression...
2017: PloS One
https://www.readbyqxmd.com/read/28429197/axillary-micrometastases-and-isolated-tumor-cells-are-not-an-indication-for-post-mastectomy-radiotherapy-in-stage-1-and-2-breast-cancer
#15
Anita Mamtani, Sujata Patil, Michelle Stempel, Monica Morrow
BACKGROUND: Randomized trials demonstrate equivalent locoregional control with sentinel lymph node biopsy (SLNB) or axillary lymph node dissection (ALND) for T1-2 micrometastatic breast cancer, but include few mastectomy patients. Consensus is lacking on indications for post-mastectomy radiotherapy (PMRT) in this population. Herein, we evaluate locoregional recurrence (LRR) in an unselected, modern cohort of T1-2 breast cancer patients with micrometastases or isolated tumor cells (ITCs; N0i+/N1mi) having a mastectomy...
April 20, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28429195/computer-assisted-diagnosis-system-for-breast-cancer-in-computed-tomography-laser-mammography-ctlm
#16
Afsaneh Jalalian, Syamsiah Mashohor, Rozi Mahmud, Babak Karasfi, M Iqbal Saripan, Abdul Rahman Ramli
Computed tomography laser mammography (Eid et al. Egyp J Radiol Nucl Med, 37(1): p. 633-643, 1) is a non-invasive imaging modality for breast cancer diagnosis, which is time-consuming and challenging for the radiologist to interpret the images. Some issues have increased the missed diagnosis of radiologists in visual manner assessment in CTLM images, such as technical reasons which are related to imaging quality and human error due to the structural complexity in appearance. The purpose of this study is to develop a computer-aided diagnosis framework to enhance the performance of radiologist in the interpretation of CTLM images...
April 20, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28428887/differential-intratumoral-distributions-of-cd8-and-cd163-immune-cells-as-prognostic-biomarkers-in-breast-cancer
#17
Sotirios P Fortis, Michael Sofopoulos, Nectaria N Sotiriadou, Christoforos Haritos, Christoforos K Vaxevanis, Eleftheria A Anastasopoulou, Nicole Janssen, Niki Arnogiannaki, Alexandros Ardavanis, Graham Pawelec, Sonia A Perez, Constantin N Baxevanis
BACKGROUND: Tumor immune cell infiltrates are essential in hindering cancer progression and may complement the TNM classification. CD8+ and CD163+ cells have prognostic impact in breast cancer but their spatial heterogeneity has not been extensively explored in this type of cancer. Here, their potential as prognostic biomarkers was evaluated, depending on their combined densities in the tumor center (TC) and the tumor invasive margin (IM). METHODS: CD8+ and CD163+ cells were quantified by immunohistochemistry of formalin-fixed, paraffin-embedded (FFPE) tumor tissue samples from a cohort totaling 162 patients with histologically-confirmed primary invasive non-metastatic ductal breast cancer diagnosed between 2000 and 2015...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28428649/role-of-magnetic-resonance-imaging-in-the-planning-of-breast-cancer-treatment-strategies-comparison-with-conventional-imaging-techniques
#18
Luciana Karla Lira França, Almir Galvão Vieira Bitencourt, Hugo Lamartine Souza Paiva, Caroline Baptista Silva, Nara Pacheco Pereira, Jociana Paludo, Luciana Graziano, Camila Souza Guatelli, Juliana Alves de Souza, Elvira Ferreira Marques
OBJECTIVE: To assess the role of magnetic resonance imaging (MRI) in the planning of breast cancer treatment strategies. MATERIALS AND METHODS: The study included 160 women diagnosed with breast cancer, who underwent breast MRI for preoperative staging. Using Pearson's correlation coefficient (r), we compared the size of the primary tumor, as determined by MRI, by conventional imaging (mammography and ultrasound), and in the pathological examination (gold standard)...
March 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28427436/a-3d-in-vitro-model-of-the-human-breast-duct-a-method-to-unravel-myoepithelial-luminal-interactions-in-the-progression-of-breast-cancer
#19
Edward P Carter, James A Gopsill, Jennifer J Gomm, J Louise Jones, Richard P Grose
BACKGROUND: 3D modelling fulfils a critical role in research, allowing for complex cell behaviour and interactions to be studied in physiomimetic conditions. With tissue banks becoming established for a number of cancers, researchers now have access to primary patient cells, providing the perfect building blocks to recreate and interrogate intricate cellular systems in the laboratory. The ducts of the human breast are composed of an inner layer of luminal cells supported by an outer layer of myoepithelial cells...
April 21, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28426874/the-association-between-breast-cancer-and-s100p-methylation-in-peripheral-blood-by-multicenter-case-control-studies
#20
Rongxi Yang, Sarah Stöcker, Sarah Schott, Jörg Heil, Frederik Marme, Katarina Cuk, Bowang Chen, Michael Golatta, Yan Zhou, Christian Sutter, Barbara Wappenschmidt, Rita Schmutzler, Peter Bugert, Bin Qu, Claus R Bartram, Christof Sohn, Andreas Schneeweiss, Barbara Burwinkel
Breast cancer (BC) is the leading cancer in women worldwide. Changes in DNA methylation in peripheral blood could be associated with malignant diseases. Making use of screening results by llumina 27K Methylation Assay, we validated demethylation of five CpG sites of S100P gene in blood cell DNA of BC patients by three independent retrospective studies with subjects from different centers (Validation I: 235 familial BC case and 206 controls, odds ratio per -1% methylation > 1.03, and P < 6.00 × 10-8 for all five CpG sites; Validation II: 189 sporadic BC case and 189 controls, odds ratio per -1% methylation > 1...
March 1, 2017: Carcinogenesis
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