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https://www.readbyqxmd.com/read/28817737/myc-mediates-cancer-stem-like-cells-and-emt-changes-in-triple-negative-breast-cancers-cells
#1
Shuping Yin, Vino T Cheryan, Liping Xu, Arun K Rishi, Kaladhar B Reddy
Women with triple negative breast cancer (TNBC) have poor prognosis compared to other breast cancer subtypes. There were several reports indicating racial disparity in breast cancer outcomes between African American (AA) and European American (EA) women. For example, the mortality rates of AA breast cancer patients were three times higher than of EA patients, even though, the incidence is lower in AA women. Our in vitro studies indicate that cancer stem-like cells (CSCs) derived from AA TNBC cell lines have significantly higher self-renewal potential (mammosphere formation) than CSCs derived from EA cell lines...
2017: PloS One
https://www.readbyqxmd.com/read/28817097/bloch-surface-waves-biosensors-for-high-sensitivity-detection-of-soluble-erbb2-in-a-complex-biological-environment
#2
Alberto Sinibaldi, Camilla Sampaoli, Norbert Danz, Peter Munzert, Frank Sonntag, Fabio Centola, Agostino Occhicone, Elisa Tremante, Patrizio Giacomini, Francesco Michelotti
We report on the use of one-dimensional photonic crystals to detect clinically relevant concentrations of the cancer biomarker ERBB2 in cell lysates. Overexpression of the ERBB2 protein is associated with aggressive breast cancer subtypes. To detect soluble ERBB2, we developed an optical set-up which operates in both label-free and fluorescence modes. The detection approach makes use of a sandwich assay, in which the one-dimensional photonic crystals sustaining Bloch surface waves are modified with monoclonal antibodies, in order to guarantee high specificity during the biological recognition...
August 17, 2017: Biosensors
https://www.readbyqxmd.com/read/28816969/immediate-breast-reconstruction-with-omental-flap-for-luminal-breast-cancer-patients-ten-clinical-case-reports
#3
Nanlin Li, Zhao Zheng, Jipeng Li, Jing Fan, Ting Wang, Juliang Zhang, Hui Wang, Jianghao Chen, Yonggang Lv, Jun Yi, Meiling Huang, Rui Ling
RATIONALE: Luminal subtype breast cancer, accounting for 70 to 80% of all breast cancers, has been reported to be associated with good prognosis. However, for the patients with large mass or worse mass position, omental flap transplantation may provide a new option for breast reconstruction. PATIENT CONCERNS: Ten patients (6 luminal B1, 2 luminal B2, 2 luminal A), were enrolled into the study, between January 23, 2015 and August 22, 2016. The mean age was 34.6 ± 6...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28811325/ppar%C3%AE-ligand-induced-annexin-a1-expression-determines-chemotherapy-response-via-deubiquitination-of-death-domain-kinase-rip-in-triple-negative-breast-cancers
#4
Luxi Chen, Yi Yuan, Shreya Kar, Madhu M Kanchi, Suruchi Arora, Ji E Kim, Pei F Koh, Einas Yousef, Ramar P Samy, Muthu K Shanmugam, Tuan Z Tan, Sung W Shin, Frank Arfuso, Han M Shen, Henry Yang, Boon C Goh, Joo I Park, Louis Gaboury, Peter E Lobie, Gautam Sethi, Lina Hk Lim, Alan P Kumar
Metastatic breast cancer is still remain incurable so far, new specifically targeted and more effective therapies for triple negative breast cancer (TNBC) are required in the clinic. In this study, our clinical data has established that basal and claudin-low subtypes of breast cancer (TNBC types) express significantly higher levels of Annexin A1 (ANXA1) with poor survival outcomes. Using human cancer cell lines which model the TNBC subtype, we observed a strong positive correlation between expression of ANXA1 and Peroxisome Proliferator-Activated Receptor gamma (PPARγ)...
August 15, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28810913/selinexor-kpt-330-demonstrates-anti-tumor-efficacy-in-preclinical-models-of-triple-negative-breast-cancer
#5
Natalia Paez Arango, Erkan Yuca, Ming Zhao, Kurt W Evans, Stephen Scott, Charissa Kim, Ana Maria Gonzalez-Angulo, Filip Janku, Naoto T Ueno, Debu Tripathy, Argun Akcakanat, Aung Naing, Funda Meric-Bernstam
BACKGROUND: Selinexor (KPT-330) is an oral agent that has been shown to inhibit the nuclear exporter XPO1. Given the pressing need for novel therapies for triple-negative breast cancer (TNBC), we sought to determine the antitumor effects of selinexor in vitro and in vivo. METHODS: Twenty-six breast cancer cell lines of different breast cancer subtypes were treated with selinexor in vitro. Cell proliferation assays were used to measure the half-maximal inhibitory concentration (IC50) and to test the effects in combination with chemotherapy...
August 15, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28810186/the-efficacy-of-lapatinib-and-capecitabine-in-her-2-positive-breast-cancer-with-brain-metastases-a-systematic-review-and-pooled-analysis
#6
REVIEW
Fausto Petrelli, Michele Ghidini, Veronica Lonati, Gianluca Tomasello, Karen Borgonovo, Mara Ghilardi, Mary Cabiddu, Sandro Barni
INTRODUCTION: Breast cancer (BC) with HER-2/neu overexpression or amplification (HER-2+) is associated with a higher prevalence of brain metastases (BMs) when compared to other subtypes. Among approved drugs for HER-2+ BC, lapatinib (L) is associated with single agent activity toward BMs. We conducted a systematic review to determine the efficacy of L, singly or in combination with capecitabine (C), as a treatment for HER-2+ BMs. MATERIAL AND METHODS: We searched PubMed, EMBASE, The Cochrane Library, SCOPUS, Web of Science, ClinicalTrials...
August 12, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28809778/reprimo-a-potential-p53-dependent-tumor-suppressor-gene-is-frequently-hypermethylated-in-estrogen-receptor-%C3%AE-positive-breast-cancer
#7
Kurt Buchegger, Ismael Riquelme, Tamara Viscarra, Carmen Ili, Priscilla Brebi, Tim Hui-Ming Huang, Juan Carlos Roa
Aberrant DNA methylation is a hallmark of many cancers. Currently, there are four intrinsic molecular subtypes in breast cancer (BC): Luminal A, B, Her2-positive, and triple negative (TNBC). Recently, The Cancer Genome Atlas (TCGA) project has revealed that Luminal subtypes have higher levels of genome-wide methylation that may be a result of Estrogen/Estrogen receptor α (E2/ERα) signaling pathway activation. In this study, we analyze promoter CpG-island (CGIs) of the Reprimo (RPRM) gene in breast cancers (n = 77), cell lines (n = 38), and normal breast tissue (n = 10) using a MBDCap-seq database...
August 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28808873/elevated-hu-antigen-receptor-hur-expression-is-associated-with-tumor-aggressiveness-and-poor-prognosis-but-not-with-cox-2-expression-in-invasive-breast-carcinoma-patients
#8
Constantinos Giaginis, Anastasia Sampani, Iolly Kotta-Loizou, Ioanna Giannopoulou, Eugene Danas, Ekaterini Politi, Gerasimos Tsourouflis, Gregorios Kouraklis, Efstratios Patsouris, Antonios Keramopoulos, Lydia Nakopoulou, Stamatios Theocharis
Hu-antigen R (HuR), a RNA-binding protein, is considered to play a crucial role in tumor development and progression by stabilizing or regulating a group of cellular mRNAs of cancer-related genes, such as cyclooxygenase-2 (COX-2). The present study aimed to evaluate the clinical significance of HuR and COX-2 expression in invasive breast carcinoma. HuR and COX-2 protein expression was assessed immunohistochemically on paraffin-embedded breast cancer tissue sections obtained from 121 patients and was statistically analyzed with clinicopathological parameters, estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2), as well as with tumor cells' proliferative capacity and overall and disease-free patients' survival...
August 14, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28807940/mitotic-vulnerability-in-triple-negative-breast-cancer-associated-with-lin9-is-targetable-with-bet-inhibitors
#9
Jennifer M Sahni, Sylvia S Gayle, Bryan Webb, Kristen L Weber-Bonk, Darcie D Seachrist, Salendra Singh, Steven T Sizemore, Nicole A Restrepo, Gurkan Bebek, Peter Scacheri, Vinay Varadan, Matthew K Summers, Ruth A Keri
Triple-negative breast cancers (TNBC) are highly aggressive, lack FDA-approved targeted therapies, and frequently recur, making the discovery of novel therapeutic targets for this disease imperative. Our previous analysis of the molecular mechanisms of action of Bromodomain and extraterminal protein inhibitors (BETi) in TNBC revealed these drugs cause multinucleation, indicating BET proteins are essential for efficient mitosis and cytokinesis. Here, using live cell imaging, we show that BET inhibition prolonged mitotic progression and induced mitotic cell death, both of which are indicative of mitotic catastrophe...
August 14, 2017: Cancer Research
https://www.readbyqxmd.com/read/28807821/popdc1-is-suppressed-in-human-breast-cancer-tissues-and-is-negatively-regulated-by-egfr-in-breast-cancer-cell-lines
#10
Johanna Ndamwena Amunjela, Steven John Tucker
Breast cancer molecular heterogeneity has resulted in disparities in therapeutic response and targeting of molecular subtypes of breast cancer. This necessitates identification and validation of novel therapeutic targets for breast cancer treatment. Suppression of Popeye domain-containing (POPDC) proteins is hypothesized to promote malignant cell behaviour and poor clinical outcomes in various cancers. We aimed to determine whether POPDC proteins are suppressed in human ductal carcinoma tissues and if this correlates to clinical progression and Her2 status...
August 11, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28804596/characterisation-of-tumour-derived-microvesicles-in-cancer-patients-blood-and-correlation-with-clinical-outcome
#11
Kerstin Menck, Annalen Bleckmann, Astrid Wachter, Bianca Hennies, Lena Ries, Matthias Schulz, Marko Balkenhol, Tobias Pukrop, Bawarjan Schatlo, Ulrike Rost, Dirk Wenzel, Florian Klemm, Claudia Binder
To evaluate whether tumour-derived microvesicles (T-MV), originating from the plasma membrane, represent suitable cancer biomarkers, we isolated MV from peripheral blood samples of cancer patients with locally advanced and/or metastatic solid tumours (n = 330, including 79 head & neck cancers, 74 lung cancers, 41 breast cancers, 28 colorectal cancers and 108 with other cancer forms) and controls (n = 103). Whole MV preparations were characterised using flow cytometry. While MV carrying the tumour-associated proteins MUC1, EGFR and EpCAM were found to be enhanced in a tumour-subtype-specific way in patients' blood, expression of the matrix metalloproteinase inducer EMMPRIN was increased independent of tumour type...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28802528/how-young-is-too-young-in-breast-cancer-young-breast-cancer-is-not-a-unique-biological-subtype
#12
Jianfei Fu, Lunpo Wu, Wei Fu, Yinuo Tan, Tiantian Xu, Zhongwu Hong, Fan Wang, Shuguang Li
BACKGROUND: There is no uniformly adopted cutoff value to define "young patients" with breast cancer. This study was designed to determine an optimal cutoff value, to investigate prognostic factors and to explore gene expression profiles of young female breast cancer. MATERIALS AND METHODS: The Surveillance, Epidemiology, and End Results database was examined to identify cases of female breast cancer diagnosed between 2000 and 2007. The optimal cutoff value for young age was determined using the X-tile program (Yale University, version 3...
June 8, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28802188/risk-of-uterine-cancer-for-brca1-and-brca2-mutation-carriers
#13
Y C Lee, R L Milne, S Lheureux, M Friedlander, S A McLachlan, K L Martin, M Q Bernardini, C Smith, S Picken, S Nesci, J L Hopper, K A Phillips
BACKGROUND: Whether BRCA1 and BRCA2 mutation carriers have a clinically relevant elevated risk of uterine cancer has implications for risk-reducing surgery. AIM: This multicentre, prospective cohort study assessed uterine cancer risk for mutation carriers compared with the general population. METHODS: Eligible mutation carriers were enrolled in the Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer (kConFab) cohort study, had a uterus present and no history of uterine cancer at cohort entry...
August 9, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28801774/bcl-2-antigen-expression-in-luminal-a-and-triple-negative-breast-cancer
#14
Carla Solange Escórcio-Dourado, Luana Mota Martins, Camila Maria Simplício-Revoredo, Fabiane Araújo Sampaio, Cléciton Braga Tavares, João Paulo da Silva-Sampaio, Umbelina Soares Borges, Francisco Adelton Alves-Ribeiro, Pedro Vitor Lopes-Costa, José Charles Lima-Dourado, Benedito Borges da Silva
Biomarkers for the prognosis of breast cancer have been routinely used in clinical practice, including the expression of hormone receptors, Ki-67 and HER-2. More recently, Bcl-2 has been recognized as an important prognostic factor in breast cancer, although controversies persist with respect to the significance of its expression. The aim of the present study was to evaluate Bcl-2 antigen expression in luminal A and triple-negative breast cancer. Sixty women with invasive ductal carcinoma were included in the study and divided into two groups: Group A (luminal A) and Group B (triple-negative), with 30 cases in each group...
August 11, 2017: Medical Oncology
https://www.readbyqxmd.com/read/28801156/alarming-burden-of-triple-negative-breast-cancer-in-india
#15
REVIEW
Krishan K Thakur, Devivasha Bordoloi, Ajaikumar B Kunnumakkara
Breast cancer is the most prevalent cancer among women worldwide. Among the different breast cancer subtypes, triple-negative breast cancer (TNBC), which is more prevalent among younger age women, is the most aggressive form. Numerous clinicopathologic studies performed throughout the world strongly support the utterly poor prognoses and high recurrence rate of TNBC. The present report details a thorough data survey from Google and PubMed on the burden of TNBC worldwide and other associated factors, with special emphasis on its ever increasing incidence among Indian women...
July 20, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28799073/immunotherapy-in-breast-cancer-the-emerging-role-of-pd-1-and-pd-l1
#16
REVIEW
François Bertucci, Anthony Gonçalves
PURPOSE OF REVIEW: The purpose of the review is to summarize the data regarding PD-L1 expression in breast cancer and the results of first clinical trials with PD-1 or PD-L1 inhibitors in patients with metastatic breast cancer. RECENT FINDINGS: PD-L1 expression is heterogeneous across primary breast cancers, and is generally associated with the presence of tumor-infiltrating lymphocytes and the presence of poor-prognosis features such as high grade, and aggressive molecular subtypes (triple-negative (TN), basal, HER2-enriched)...
August 10, 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28798006/breast-adenoid-cystic-carcinoma-a-rare-case-report-and-review-of-the-literature
#17
Lamiae El Amarti, Hanan Raiss, Mohamed Layachi, Salif Baldé, Hamza Ettahri, Ibrahim Elghissassi, Hind Mrabti, Hassan Errihani
BACKGROUND: Primary adenoid cystic carcinoma (ACC) of the breast is a rare subtype of invasive breast cancer. It has a particular interest because of its excellent prognosis conversely to other triple-negative breast cancers that are associated with poor prognosis. The place of chemotherapy and radiotherapy remains controversial and there is no consensus on optimal management of the ACC of the breast. CASE REPORT: A 50-year-old woman, presented with a palpable right breast lump...
May 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28797265/risk-and-predictors-of-psoriasis-in-patients-with-breast-cancer-a-swedish-population-based-cohort-study
#18
Haomin Yang, Judith S Brand, Jingmei Li, Jonas F Ludvigsson, Emilio Ugalde-Morales, Flaminia Chiesa, Per Hall, Kamila Czene
BACKGROUND: The risk of psoriasis in patients with breast cancer is largely unknown, as available evidence is limited to case findings. We systematically examined the incidence and risk factors of psoriasis in patients with breast cancer. METHODS: A Swedish nationwide cohort of 56,235 breast cancer patients (2001-2012) was compared to 280,854 matched reference individuals from the general population to estimate the incidence and hazard ratio (HR) of new-onset psoriasis...
August 11, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28797046/breast-conservation-surgery-versus-total-mastectomy-among-women-with-localized-breast-cancer-in-soweto-south-africa
#19
Herbert Cubasch, Maureen Joffe, Paul Ruff, Donald Dietz, Evan Rosenbaum, Nivashni Murugan, Ming Tsai Chih, Oluwatosin Ayeni, Caroline Dickens, Katherine Crew, Judith S Jacobson, Alfred Neugut
PURPOSE: Breast conserving surgery (BCS) has become the preferred surgical option for the management of patients with nonmetastatic breast cancer in high-income countries. However, little is known about the distribution and determinants of BCS in low-and middle-income countries, especially those with high HIV prevalence. METHODS: We compared demographic and clinical characteristics of female patients who received BCS and those who received total mastectomy (TM) for nonmetastatic invasive carcinoma of the breast in Soweto, South Africa, 2009-2011...
2017: PloS One
https://www.readbyqxmd.com/read/28797035/protein-expression-patterns-of-cell-cycle-regulators-in-operable-breast-cancer
#20
Flora Zagouri, Vassiliki Kotoula, George Kouvatseas, Maria Sotiropoulou, Triantafyllia Koletsa, Theofani Gavressea, Christos Valavanis, Helen Trihia, Mattheos Bobos, Georgios Lazaridis, Angelos Koutras, George Pentheroudakis, Pantelis Skarlos, Dimitrios Bafaloukos, Niki Arnogiannaki, Sofia Chrisafi, Christos Christodoulou, Pavlos Papakostas, Gerasimos Aravantinos, Paris Kosmidis, Charisios Karanikiotis, George Zografos, Christos Papadimitriou, George Fountzilas
BACKGROUND-AIM: To evaluate the prognostic role of elaborate molecular clusters encompassing cyclin D1, cyclin E1, p21, p27 and p53 in the context of various breast cancer subtypes. METHODS: Cyclin E1, cyclin D1, p53, p21 and p27 were evaluated with immunohistochemistry in 1077 formalin-fixed paraffin-embedded tissues from breast cancer patients who had been treated within clinical trials. Jaccard distances were computed for the markers and the resulted matrix was used for conducting unsupervised hierarchical clustering, in order to identify distinct groups correlating with prognosis...
2017: PloS One
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