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Early Breast Cancer

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https://www.readbyqxmd.com/read/27915342/in-vitro-effects-of-has-2-gene-silencing-on-the-proliferation-and-apoptosis-of-the-mcf-7-human-breast-cancer-cell-line
#1
Hong-Yan Zhang, Feng Liang, Fei Wang, Jian-Wei Zhang, Li Wang, Xi-Gang Kang, Jie Wang, Qi-Liu Duan
BACKGROUND: Breast cancer is characterized by a distinct metastatic pattern involving the regional lymph nodes, bone marrow, lung and liver. This study is aimed to investigate the effects of silencing the HAS-2 gene on the proliferation and apoptosis of human breast cancer cells. METHODS: MCF-7 cells were collected and assigned into control, scrambled siRNA and HAS-2- siRNA groups. After transfection, the morphological changes in the MCF-7 cells were observed using phase contrast microscopy...
December 5, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27914983/neuropeptide-y-y1-receptor-mediated-biodegradable-photoluminescent-nanobubbles-as-ultrasound-contrast-agents-for-targeted-breast-cancer-imaging
#2
Juan Li, Yuchen Tian, Dingying Shan, An Gong, Leyong Zeng, Wenzhi Ren, Lingchao Xiang, Ethan Gerhard, Jinshun Zhao, Jian Yang, Aiguo Wu
Targeted molecular imaging has attracted great attention in cancer diagnosis and treatment. However, most clinically used ultrasound contrast agents (UCAs) are non-targeted microbubbles seldom used for cancer imaging. Here, we fabricated fluorescent nanobubbles (NBs) by encapsulation of liquid tetradecafluorohexane (C6F14) within biodegradable photoluminescent polymers (BPLPs) through an emulsion-evaporation process and conjugation of PNBL-NPY ligand for specific targeting of Y1 receptors overexpressed in breast tumors...
November 22, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914569/treatment-with-ruta-graveolens-5ch-and-rhus-toxicodendron-9ch-may-reduce-joint-pain-and-stiffness-linked-to-aromatase-inhibitors-in-women-with-early-breast-cancer-results-of-a-pilot-observational-study
#3
Jean-Claude Karp, Carole Sanchez, Philippe Guilbert, William Mina, Antoine Demonceaux, Hervé Curé
OBJECTIVE: To determine the possible effect of two homeopathic medicines, Ruta graveolens 5CH and Rhus toxicodendron 9CH, in the prevention of aromatase inhibitor (AI) associated joint pain and/or stiffness in women with early, hormone-receptor positive, breast cancer. METHODS: This prospective, unrandomized observational study was carried out between April and October 2014. Women were recruited in two groups, according to which of the two study centres they attended: one receiving homeopathy in addition to standard treatment (group H) and a control group, receiving standard treatment (group C)...
November 2016: Homeopathy: the Journal of the Faculty of Homeopathy
https://www.readbyqxmd.com/read/27914264/pattern-based-sensing-of-triple-negative-breast-cancer-cells-with-dual-ligand-cofunctionalized-gold-nanoclusters
#4
Yu Tao, Mingqiang Li, Debra T Auguste
Early detection of breast cancer is a critical component in patient prognosis and establishing effective therapy regimens. Here, we developed an easily accessible yet potentially powerful sensor to detect cancer cell targets by utilizing seven dual-ligand cofunctionalized gold nanoclusters (AuNCs) as both effective cell recognition elements and signal transducers. On the basis of this AuNC multichannel sensor, we have successfully distinguished healthy, cancerous and metastatic human breast cells with excellent reproducibility and high sensitivity...
November 25, 2016: Biomaterials
https://www.readbyqxmd.com/read/27913999/the-role-of-her2-egfr-and-other-receptor-tyrosine-kinases-in-breast-cancer
#5
Jennifer L Hsu, Mien-Chie Hung
Breast cancer affects approximately 1 in 8 women, and it is estimated that over 246,660 women in the USA will be diagnosed with breast cancer in 2016. Breast cancer mortality has decline over the last two decades due to early detection and improved treatment. Over the last few years, there is mounting evidence to demonstrate the prominent role of receptor tyrosine kinases (RTKs) in tumor initiation and progression, and targeted therapies against the RTKs have been developed, evaluated in clinical trials, and approved for many cancer types, including breast cancer...
December 2, 2016: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/27913396/long-term-exposure-to-fine-particulate-matter-and-breast-cancer-incidence-in-the-danish-nurse-cohort-study
#6
Zorana J Andersen, Line Ravnskjaer, Klaus Kaae Andersen, Steffen Loft, Jorgen Brandt, Thomas Becker, Matthias Ketzel, Ole Hertel, Elsebeth Lynge, Elvira Vaclavik Brauner
BACKGROUND: An association between air pollution and breast cancer risk has been suggested but evidence is sparse and inconclusive. METHODS: We included 22,877 female nurses from the Danish Nurse cohort who were recruited in 1993 or 1999, and followed them for incidence of breast cancer (N=1,145) until 2013 in the Danish Cancer Register. We estimated annual mean concentrations of particulate matter with diameter < 2.5 µg/m3 (PM2.5) and < 10 µg/m3 (PM10), and nitrogen dioxide (NO2) at nurses' residences since 1990 using an atmospheric chemistry transport model...
December 2, 2016: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/27912889/hormone-replacement-therapy-in-young-women-with-primary-ovarian-insufficiency-and-early-menopause
#7
REVIEW
Shannon D Sullivan, Philip M Sarrel, Lawrence M Nelson
Primary ovarian insufficiency (POI) is a rare but important cause of ovarian hormone deficiency and infertility in women. In addition to causing infertility, POI is associated with multiple health risks, including bothersome menopausal symptoms, decreased bone density and increased risk of fractures, early progression of cardiovascular disease, psychologic impact that may include depression, anxiety, and decreased perceived psychosocial support, potential early decline in cognition, and dry eye syndrome. Appropriate hormone replacement therapy (HRT) to replace premenopausal levels of ovarian sex steroids is paramount to increasing quality of life for women with POI and ameliorating associated health risks...
December 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27912781/an-immune-stratification-reveals-a-subset-of-pd-1-lag-3-double-positive-triple-negative-breast-cancers
#8
Giulia Bottai, Carlotta Raschioni, Agnese Losurdo, Luca Di Tommaso, Corrado Tinterri, Rosalba Torrisi, Jorge S Reis-Filho, Massimo Roncalli, Christos Sotiriou, Armando Santoro, Alberto Mantovani, Sherene Loi, Libero Santarpia
BACKGROUND: Stromal tumor-infiltrating lymphocytes (TILs) are a robust prognostic factor in triple-negative breast cancer (TNBC). However, the clinical significance of TILs may be influenced by the complex landscape of the tumor immune microenvironment. In this study, we aimed to evaluate the composition and the functionality of lymphocytic infiltration and checkpoint receptors in TNBC. METHODS: Formalin-fixed, paraffin-embedded tissues were retrospectively collected from a cohort of patients with early-stage TNBC treated with adjuvant anthracycline-based chemotherapy (n = 259)...
December 3, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27911951/body-surface-area-and-baseline-blood-pressure-predict-subclinical-anthracycline-cardiotoxicity-in-women-treated-for-early-breast-cancer
#9
Paul Kotwinski, Gillian Smith, Jackie Cooper, Julie Sanders, Louise Ma, Albert Teis, David Kotwinski, Michael Mythen, Dudley J Pennell, Alison Jones, Hugh Montgomery
BACKGROUND AND AIMS: Anthracyclines are highly effective chemotherapeutic agents which may cause long-term cardiac damage (chronic anthracycline cardiotoxicity) and heart failure. The pathogenesis of anthracycline cardiotoxicity remains incompletely understood and individual susceptibility difficult to predict. We sought clinical features which might contribute to improved risk assessment. METHODS: Subjects were women with early breast cancer, free of pre-existing cardiac disease...
2016: PloS One
https://www.readbyqxmd.com/read/27911856/splicing-factor-ratio-as-an-index-of-epithelial-mesenchymal-transition-and-tumor-aggressiveness-in-breast-cancer
#10
Pietro Fici, Giulia Gallerani, Anne-Pierre Morel, Laura Mercatali, Toni Ibrahim, Emanuela Scarpi, Dino Amadori, Alain Puisieux, Michel Rigaud, Francesco Fabbri
Epithelial-to-mesenchymal transition (EMT) has been shown to be associated with tumor progression and metastasis. During this process in breast cancer, a crucial role is played by alternative splicing systems. To identify a new early prognostic marker of metastasis, we evaluated EMT-related gene expression in breast cell lines, and in primary tumor tissue from 31 patients with early breast cancer, focusing our attention on EMT-related splicing factors ESRP1, ESRP2 and RBFOX2. Results showed that the expression patterns of these genes were indicative of the onset of EMT in in-vitro models, but not in tissue samples...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27910996/speckle-tracking-echocardiography-predicts-early-subclinical-anthracycline-cardiotoxicity-in-patients-with-breast-cancer
#11
Qi Tang, Yan Jiang, Yali Xu, Hongmei Xia
PURPOSE: This study aimed to assess the early changes of left ventricular (LV) and right ventricular (RV) mechanics associated with anthracycline treatment for breast cancer and to determine whether two-dimensional speckle tracking echocardiography (2D-STE) analysis could predict chemotherapy-induced cardiotoxicity. BACKGROUND: Anthracycline generates progressive LV dysfunction associated with a poor prognosis. Early detection of minor change of myocardial mechanics is thus important...
December 2, 2016: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/27910901/risk-factors-for-endometrial-cancer-results-from-a-hospital-based-case-control-study
#12
Maryam Ghanbari Andarieh, Mouloud Agajani Delavar, Dariush Moslemi, Sedighe Esmaeilzadeh
Objectives: The purpose of this investigation was to examine the association between endometrial cancer and possible etiological agents. Methods: A case-control study was conducted in Iran between March 2012 and May 2016. The demographic and reproductive factors of 205 women with endometrial cancer were compared, and 590 healthy cases were participated in the control group. For each endometrial cancer case, there were three controls, who were matched in terms of age and residence. The data were considered significant at p ≤0...
January 10, 2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27909934/current-achievements-and-future-perspectives-of-metronomic-chemotherapy
#13
REVIEW
Adriana Romiti, Rosa Falcone, Michela Roberto, Paolo Marchetti
In recent years, many anticancer drugs have been tested at metronomic dosages for a variety of tumours. Mechanisms of action attributed to metronomic chemotherapy (MCT) include antiangiogenesis, immunomodulation, direct inhibition of tumour growth, effect on tumour initiating cells and the modulation of clonal evolution. An active clinical research, aimed at testing MCT in several cancers, has been conducted over the past 15 years. However, because the majority of available results come from earlier phase II studies, mainly performed in the area of breast cancer (BC), it is clear that there are areas still to be investigated...
December 1, 2016: Investigational New Drugs
https://www.readbyqxmd.com/read/27908586/standard-wide-local-excision-or-bilateral-reduction-mammoplasty-in-large-breasted-women-with-small-tumours-surgical-and-patient-reported-outcomes
#14
R Di Micco, R L O'Connell, P A Barry, N Roche, F A MacNeill, J E Rusby
INTRODUCTION: Oncoplastic breast surgery is used to extend the role of breast-conserving surgery (BCS) to women with an unfavourable tumour to breast volume ratio. However, large-breasted women with a relatively small breast cancer may be offered bilateral reduction mammoplasty (BRM) despite being suitable for standard BCS as the more complex surgery may have advantages in terms of patient satisfaction and reduced adverse effects of radiotherapy. PATIENT AND METHODS: This retrospective study evaluated surgical and patient-reported outcome measures (PROMs) in large-breasted women with early (<3 cm) breast cancer, who have undergone unilateral standard BCS or BRM...
November 17, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27906669/hemoglobin-level-trajectories-in-the-early-treatment-period-are-related-with-survival-outcomes-in-patients-with-breast-cancer
#15
Chia-Lin Lee, Chun-Hao Tsai, Dah-Cherng Yeh, Chi-Shy Lin, Yu-Fen Li, Huey-En Tzeng
Hemoglobin (Hb) levels are reportedly related with treatment outcomes and survival in patients of breast cancer. However, the long-term change in Hb levels after treatment and the effects of Hb on survival remain unknown. This retrospective cohort study enrolled 1931 breast cancer patients with pathological stage I-IV between 1/1/2003 and 12/31/2013. Latent class modeling was used to identify trajectories in monthly Hb levels over time. The primary endpoint was 10-year cancer-related death. We identified 5 distinct Hb trajectories: persistent anemia (5...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27906177/-normalizing-the-malignant-phenotype-of-luminal-breast-cancer-cells-via-alpha-v-beta-3-integrin
#16
Hanan Abu-Tayeh, Keren Weidenfeld, Alisa Zhilin-Roth, Sagi Schif-Zuck, Sonja Thaler, Cristina Cotarelo, Tuan Z Tan, Jean P Thiery, Jeffrey E Green, Geula Klorin, Edmond Sabo, Jonathan P Sleeman, Maty Tzukerman, Dalit Barkan
Reestablishing tissue organization of breast cancer cells into acini was previously shown to override their malignant phenotype. In our study, we demonstrate that alpha(v)beta(3) integrin (Int-αvβ3), previously shown to play a role in cancer progression, promoted differentiation and growth arrest of organoids derived from luminal A breast cancer cells grown in their relevant three-dimensional microenvironment. These organoids differentiated into normal-like acini resembling a benign stage of breast tissue...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27905950/use-of-indocyanine-green-and-the-hypereye-system-for-detecting-sentinel-lymph-nodes-in-breast-cancer-within-a-population-of-european-patients-a-pilot-study
#17
Oldřich Coufal, Vuk Fait
BACKGROUND: Certain studies suggest that using indocyanine green (ICG) could be comparable with using radioisotopes (RI) in detecting sentinel lymph nodes (SLNs) in breast cancer. A number of these studies were performed in Asia. The objective of our pilot study was to evaluate within a European population of breast cancer patients the detection rate of SLNs using ICG and the HyperEye system and the concordance in SLNs detected using this method and the standard method involving RI and a gamma probe...
December 1, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27903677/combined-inhibition-of-both-p110%C3%AE-and-p110%C3%AE-isoforms-of-phosphatidylinositol-3-kinase-is-required-for-sustained-therapeutic-effect-in-pten-deficient-er-breast-cancer
#18
Sarah R Hosford, Lloye M Dillon, Stephanie J Bouley, Rachele Rosati, Wei Yang, Vivian S Chen, Eugene Demidenko, Rocco P Morra, Todd W Miller
PURPOSE: Determine the roles of the phosphatidylinositol 3-kinase (PI3K) isoforms p110α and p110β in PTEN-deficient, estrogen receptor α (ER)-positive breast cancer, and the therapeutic potential of isoform-selective inhibitors. EXPERIMENTAL DESIGN: Anti-estrogen-sensitive and -resistant PTEN-deficient, ER+ human breast cancer cell lines, and mice bearing anti-estrogen-resistant xenografts were treated with the anti-estrogen fulvestrant, the p110α inhibitor BYL719, the p110β inhibitor GSK2636771, or combinations...
November 30, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27903276/accurate-prediction-of-response-to-endocrine-therapy-in-breast-cancer-patients-current-and-future-biomarkers
#19
REVIEW
Cigdem Selli, J Michael Dixon, Andrew H Sims
Approximately 70% of patients have breast cancers that are oestrogen receptor alpha positive (ER+) and are therefore candidates for endocrine treatment. Many of these patients relapse in the years during or following completion of adjuvant endocrine therapy. Thus, many ER+ cancers have primary resistance or develop resistance to endocrine therapy during treatment. Recent improvements in our understanding of how tumours evolve during treatment with endocrine agents have identified both changes in gene expression and mutational profiles, in the primary cancer as well as in circulating tumour cells...
December 1, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27902704/methylation-of-breast-cancer-predisposition-genes-in-early-onset-breast-cancer-australian-breast-cancer-family-registry
#20
Cameron M Scott, JiHoon Eric Joo, Neil O'Callaghan, Daniel D Buchanan, Mark Clendenning, Graham G Giles, John L Hopper, Ee Ming Wong, Melissa C Southey
DNA methylation can mimic the effects of both germline and somatic mutations for cancer predisposition genes such as BRCA1 and p16INK4a. Constitutional DNA methylation of the BRCA1 promoter has been well described and is associated with an increased risk of early-onset breast cancers that have BRCA1-mutation associated histological features. The role of methylation in the context of other breast cancer predisposition genes has been less well studied and often with conflicting or ambiguous outcomes. We examined the role of methylation in known breast cancer susceptibility genes in breast cancer predisposition and tumor development...
2016: PloS One
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