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triple positive breast cancer

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https://www.readbyqxmd.com/read/28209621/prominent-oncogenic-roles-of-evi1-in-breast-carcinoma
#1
Hui Wang, Thorsten Schaefer, Martina Konantz, Martin Braun, Zsuzsanna Varga, Anna M Paczulla, Selina Reich, Francis Jacob, Sven Perner, Holger Moch, Tanja Fehm, Lothar Kanz, Klaus Schulze-Osthoff, Claudia Lengerke
Overexpression of the EVI1 oncogene is associated typically with aggressive myeloid leukemia, but is also detectable in breast carcinoma (BC) where its contributions are unexplored. Analyzing a tissue microarray of 608 BC patient specimens, we documented EVI1 overexpression in both estrogen receptor-positive (ER+) and estrogen receptor-negative (ER-) BC. Here we report prognostic relevance of EVI1 overexpression in triple-negative BC (TNBC) but not in the HER2-positive BC subset. In human breast cancer cells, EVI1 silencing reduced proliferation, apoptosis resistance and tumorigenicity, effects rescued by estrogen supplementation in ER+ BC cells...
February 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28208987/bcl6-mrna-expression-level-in-invasive-duct-carcinoma-not-otherwise-specified
#2
Eman Badr, Eman Masoud, Asmaa Gaber Abdou, Marwa Serag Eldien
INTRODUCTION: B-Cell Lymphoma 6 (BCL6) has an oncogenic role in tumourigenesis of various malignancies. It represses genes involved in terminal differentiation and plays complementary role with Signal Transducer and Activator of Transcription 3 (STAT3) in triple-negative breast cancer cellular function. AIM: To evaluate the expression of BCL6 in cancer breast and determine its correlation with the clinico-pathological features including the molecular subtype of breast carcinoma...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28203301/progress-with-palbociclib-in-breast-cancer-latest-evidence-and-clinical-considerations
#3
REVIEW
Andrea Rocca, Alessio Schirone, Roberta Maltoni, Sara Bravaccini, Lorenzo Cecconetto, Alberto Farolfi, Giuseppe Bronte, Daniele Andreis
Deregulation of the cell cycle is a hallmark of cancer, and research on cell cycle control has allowed identification of potential targets for anticancer treatment. Palbociclib is a selective inhibitor of the cyclin-dependent kinases 4 and 6 (CDK4/6), which are involved, with their coregulatory partners cyclin D, in the G1-S transition. Inhibition of this step halts cell cycle progression in cells in which the involved pathway, including the retinoblastoma protein (Rb) and the E2F family of transcription factors, is functioning, although having been deregulated...
February 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28202527/-18f-2s-4r-4-fluoroglutamine-pet-detects-glutamine-pool-size-changes-in-triple-negative-breast-cancer-in-response-to-glutaminase-inhibition
#4
Rong Zhou, Austin R Pantel, Shihong Li, Brian P Lieberman, Karl Ploessl, Hoon Choi, Eric Blankemeyer, Hsiaoju Lee, Hank Kung, Robert H Mach, David Mankoff
Glutaminolysis is a metabolic pathway adapted by many aggressive cancers, including triple-negative breast cancers (TNBC), to utilize glutamine for survival and growth. In this study, we examined the utility of [18F](2S,4R)4-fluoroglutamine ([18F]4F-Gln) PET to measure tumor cellular glutamine pool size, whose change might reveal the pharmacodynamic (PD) effect of drugs targeting this cancer-specific metabolic pathway. High glutaminase (GLS) activity in TNBC tumors resulted in low cellular glutamine pool size assayed via high-resolution 1H magnetic resonance spectroscopy (MRS)...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28196852/inpp4b-and-pten-loss-leads-to-pi-3-4-p2-accumulation-and-inhibition-of-pi3k-in-tnbc
#5
Darien E Reed, Kevan M Shokat
: Triple-negative breast cancer [TNBC, lacks expression of estrogen receptor (ER), progesterone receptor (PR) and amplification of HER2/Neu] remains one of the most aggressive subtypes, affects the youngest patients and still lacks an effective targeted therapy(1,2). Both phosphatidylinositol-3-kinase (PI3K)-α and -β contribute to oncogenesis of solid tumors, including the development of breast cancer(3). Inositol polyphosphate-4-phosphatase type II (INPP4B) catalyzes the removal of the 4'-phosphate of phosphatidylinositol-(3,4-bisphosphate (PI-3,4-P2) creating phosphatidylinositol-3-phosphate(4)...
February 14, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28196064/mt4-mmp-and-egfr-expression-levels-are-key-biomarkers-for-breast-cancer-patient-response-to-chemotherapy-and-erlotinib
#6
Cassandre Yip, Pierre Foidart, Joan Somja, Alice Truong, Mehdi Lienard, Emilie Feyereisen, Hélène Schroeder, Stéphanie Gofflot, Anne-Françoise Donneau, Joëlle Collignon, Philippe Delvenne, Nor Eddine Sounni, Guy Jerusalem, Agnès Noël
BACKGROUND: Triple-negative breast cancers (TNBC) are heterogeneous cancers with poor prognosis. We aimed to determine the clinical relevance of membrane type-4 matrix metalloproteinase (MT4-MMP), a membrane type matrix metalloproteinase that interacts with epidermal growth factor receptor (EGFR) overexpressed in >50% of TNBC. METHODS: We conducted a retrospective immunohistochemical analysis on human TNBC samples (n=81) and validated our findings in in vitro and in vivo assays...
February 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28195880/pd-l1-expression-and-intratumoral-heterogeneity-across-breast-cancer-subtypes-and-stages-an-assessment-of-245-primary-and-40-metastatic-tumors
#7
Erik A Dill, Alejandro A Gru, Kristen A Atkins, Lisa A Friedman, Margaret E Moore, Timothy N Bullock, Janet V Cross, Patrick M Dillon, Anne M Mills
Tumor expression of programmed cell death ligand 1 (PD-L1) is associated with immune evasion in a variety of malignancies, including a subset of triple-negative breast carcinomas, and may mark cancers as susceptible to PD-1/PD-L1 inhibitor therapies. We herein characterize PD-L1 expression in breast cancers across the full range of histomorphologies and investigate its intratumoral heterogeneity and fidelity across primaries and metastases. A total of 245 primary and 40 metastatic (20 nodal, 20 distant) breast carcinomas were evaluated with PD-L1 immunohistochemistry on tissue microarray...
March 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28194662/mmtv-pymt-and-derived-met-1-mouse-mammary-tumor-cells-as-models-for-studying-the-role-of-the-androgen-receptor-in-triple-negative-breast-cancer-progression
#8
Jessica L Christenson, Kiel T Butterfield, Nicole S Spoelstra, John D Norris, Jatinder S Josan, Julie A Pollock, Donald P McDonnell, Benita S Katzenellenbogen, John A Katzenellenbogen, Jennifer K Richer
Triple-negative breast cancer (TNBC) has a faster rate of metastasis compared to other breast cancer subtypes, and no effective targeted therapies are currently FDA-approved. Recent data indicate that the androgen receptor (AR) promotes tumor survival and may serve as a potential therapeutic target in TNBC. Studies of AR in disease progression and the systemic effects of anti-androgens have been hindered by the lack of an AR-positive (AR+) immunocompetent preclinical model. In this study, we identified the transgenic MMTV-PyMT (mouse mammary tumor virus-polyoma middle tumor-antigen) mouse mammary gland carcinoma model of breast cancer and Met-1 cells derived from this model as tools to study the role of AR in breast cancer progression...
February 13, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28194538/the-influences-of-peritumoral-lymphatic-invasion-and-vascular-invasion-on-the-survival-and-recurrence-according-to-the-molecular-subtypes-of-breast-cancer
#9
Ki-Tae Hwang, Young A Kim, Jongjin Kim, A Jung Chu, Ji Hyun Chang, So Won Oh, Kyu Ri Hwang, Young Jun Chai
PURPOSE: We aimed to compare the influences of lymphatic invasion (LI) and vascular invasion (VI) on survival and recurrence according to the molecular subtypes of breast cancer. METHODS: We retrospectively analyzed data on 820 breast cancer patients and assessed overall survival (OS) and disease-free survival (DFS) according to LI and VI using the Kaplan-Meier estimator and the Cox proportional hazards model. RESULTS: Both positive LI and positive VI showed inferior OS and DFS compared with negative LI and negative VI (all p < 0...
February 13, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28185164/in-vivo-uptake-of-rare-earth-metals-by-triple-negative-breast-cancer-cells
#10
Luca Roncati, Antonietta Morena Gatti, Giuseppe Barbolini, Francesco Piscioli, Teresa Pusiol, Antonio Maiorana
Rare earth metals (REM) are a group of 17 chemical elements in the periodic table, namely scandium (Sc), yttrium (Y) and the lanthanides. In relation to atomic volume and geological behavior, the lanthanides are further subdivided into light, medium and heavy REM. They find many applications in the technological field; however, their impact on the human health is still conflicting and, for many aspects, unknown. During a research program carried on 113 cases of female breast cancer, immunohistochemically categorized in Her2-positive (29 cases), Her2-negative (57 cases) and triple negative (27 cases), aimed to evaluate the role of environmental particulate in carcinogenesis by elemental microanalysis, for the first time in literature we have detected a REM uptake, in detail europium (Eu), dysprosium (Dy) and praseodymium (Pr), inside the neoplastic cells belonging to a single triple negative breast cancer...
February 9, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28185053/glutaminase-expression-is-a-poor-prognostic-factor-in-node-positive-triple-negative-breast-cancer-patients-with-a-high-level-of-tumor-infiltrating-lymphocytes
#11
Joo Young Kim, Sun-Hee Heo, Seul Ki Choi, In Hye Song, In Ah Park, Young-Ae Kim, Hye Seon Park, Suk Young Park, Won Seon Bang, Gyungyub Gong, Hee Jin Lee
Glutamine metabolism is emerging as one aspect of dysregulated metabolism of tumors. Triple-negative breast cancer (TNBC) cells are glutamine dependent, whereas luminal-type cells tend to be glutamine independent. Therefore, TNBC patients might benefit from therapies targeting glutamine metabolism. To investigate the clinical significance of glutamine metabolism, we examined expression and prognostic significance of glutaminase in tumor cells and tumor-infiltrating lymphocytes (TILs) in TNBC. We retrieved 658 surgically resected TNBCs and analyzed glutaminase expression in tumor cells and TILs by immunohistochemical staining...
February 9, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28181129/circulating-tumor-cells-as-a-prognostic-marker-for-efficacy-in-the-randomized-phase-iii-jo21095-trial-in-japanese-patients-with-her2-negative-metastatic-breast-cancer
#12
Hiroji Iwata, Norikazu Masuda, Daigo Yamamoto, Yoshiaki Sagara, Nobuaki Sato, Yutaka Yamamoto, Mitsue Saito, Takashi Fujita, Shoji Oura, Junichiro Watanabe, Masami Tsukabe, Kazumi Horiguchi, Satoshi Hattori, Yoshimasa Matsuura, Katsumasa Kuroi
PURPOSE: Prognostic effects of circulating tumor cells (CTCs) have been reported in metastatic breast cancer (MBC). However, few phase III trials have investigated the potential role of CTCs in treatment selection. We explored potential relationships between CTCs, efficacy, and differential treatment effects. METHODS: Patients with HER2-negative MBC were randomized to receive either concurrent capecitabine plus docetaxel (XT) or sequential single-agent docetaxel followed by single-agent capecitabine at progression (T → X)...
February 8, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28178722/differential-gene-expression-in-ductal-carcinoma-in-situ-of-the-breast-based-on-erbb2-status
#13
Emmanuel Agosto-Arroyo, Tatyana Isayeva, Shi Wei, Jonas S Almeida, Shuko Harada
BACKGROUND: The molecular signature of ductal carcinoma in situ (DCIS) in the breast is not well understood. Erb-b2 receptor tyrosine kinase 2 (ERBB2 [formerly known as HER2/neu]) positivity in DCIS is predictive of coexistent early invasive breast carcinoma. The aim of this study is to identify the gene-expression signature profiles of estrogen receptor (ER)/progesterone receptor (PR)-positive, ERBB2, and triple-negative subtypes of DCIS. METHODS: Based on ER, PR, and ERBB2 status, a total of 18 high nuclear grade DCIS cases with no evidence of invasive breast carcinoma were selected along with 6 non-neoplastic controls...
January 2017: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/28178676/lymph-node-status-in-different-molecular-subtype-of-breast-cancer-triple-negative-tumours-are-more-likely-lymph-node-negative
#14
Ning Liu, Zhigang Yang, Xiaozhen Liu, Yun Niu
BACKGROUND AND OBJECTIVES: To investigate the association between different molecular subtype(MST) and the axillary lymph nodal(ALN) status. METHODS: A total of 528 female patients with primary breast cancer were collected. Survival estimates were calculated using the Kaplan-Meier method, univariate and multivariate logistic regression models. RESULTS: Triple negative and Luminal A breast cancers were more frequently node-negative(N0) when compared to Luminal B and Her-2 positive cancers (77...
February 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28176013/impact-of-reproductive-factors-on-breast-cancer-subtypes-in-postmenopausal-women-a-retrospective-single-center-study
#15
Alexandra von Au, Mona Klotzbuecher, Lorenz Uhlmann, Mark Boudewijns, Laura Michel, Markus Wallwiener, Joerg Heil, Michael Golatta, Joachim Rom, Christof Sohn, Andreas Schneeweiss, Florian Schuetz, Christoph Domschke
PURPOSE: Some reproductive factors are well-known general risk factors for breast cancer (BC). On the other hand, BC subtypes also have a high prognostic value. Correlations, however, that link these risk factors to the development of a particular one of the different BC subtypes are still poorly understood. The primary objective of our study was to assess the influence of different reproductive factors (duration of breastfeeding, parity, and age at first childbirth) on pathological BC subtypes...
February 7, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28174484/non-anthracycline-containing-docetaxel-and-cyclophosphamide-regimen-is-associated-with-sustained-worse-outcome-compared-with-docetaxel-anthracycline-and-cyclophosphamide-in-neoadjuvant-treatment-of-triple-negative-and-her2-positive-breast-cancer-patients-updated
#16
Xiaosong Chen, Guolin Ye, Chenfang Zhang, Xinzheng Li, Kunwei Shen
OBJECTIVE: A previous study demonstrated that non-anthracycline-containing docetaxel plus cyclophosphamide (TC) regimen was inferior to docetaxel, anthracycline and cyclophosphamide (TAC) in neoadjuvant treatment of triple-negative breast cancer (TNBC) and human epidermal growth factor receptor-2-(HER2)-positive breast cancer in a short-term follow-up. Herein, long-term follow-up survival outcomes have been investigated. METHODS: TNBC or HER2-positive patients were randomized to receive 6 cycles of TC or TAC neoadjuvant treatment...
December 2016: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28173708/synthesis-and-in-vitro-anti-proliferative-activity-of-some-novel-isatins-conjugated-with-quinazoline-phthalazine-hydrazines-against-triple-negative-breast-cancer-mda-mb-231-cells-as-apoptosis-inducing-agents
#17
Wagdy M Eldehna, Hadia Almahli, Ghada H Al-Ansary, Hazem A Ghabbour, Mohamed H Aly, Omnia E Ismael, Abdullah Al-Dhfyan, Hatem A Abdel-Aziz
Treatment of patients with triple-negative breast cancer (TNBC) is challenging due to the absence of well- defined molecular targets and the heterogeneity of such disease. In our endeavor to develop potent isatin-based anti-proliferative agents, we utilized the hybrid-pharmacophore approach to synthesize three series of novel isatin-based hybrids 5a-h, 10a-h and 13a-c, with the prime goal of developing potent anti-proliferative agents toward TNBC MDA-MB-231 cell line. In particular, compounds 5e and 10g were the most active hybrids against MDA-MB-231 cells (IC50 = 12...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28159402/-evaluation-of-tumor-infiltrating-lymphocytes-in-breast-cancer-how-to-use-the-2014%C3%A2-international-guidelines
#18
Natacha Joyon, Manal Kordahi, Cécile Blanc-Fournier, Magali Lacroix-Triki
With the major development of immunotherapies, evaluation of the immune response associated to cancer has become the new challenge for pathologists. In breast cancer, this perspective has been notably anticipated by the recent publication, in 2014, of international guidelines for assessment of tumor-infiltrating lymphocytes (TILs), on routine haematoxylin-eosin stains. This technical article aims at reviewing the main key points and different steps in evaluation of tumor-infiltrating lymphocytes, in order to allow an easy implementation of this putative biomarker in routine practice...
February 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/28155607/targeted-intraoperative-radiotherapy-tumour-bed-boost-during-breast-conserving-surgery-after-neoadjuvant-chemotherapy-in-her2-positive-and-triple-negative-breast-cancer
#19
Hans-Christian Kolberg, Gyoergy Loevey, Leyla Akpolat-Basci, Miltiades Stephanou, Peter A Fasching, Michael Untch, Max Bulsara, Jayant S Vaidya, Cornelia Liedtke
INTRODUCTION: Targeted intraoperative radiotherapy (TARGIT - IORT) as a tumour bed boost after breast conserving surgery is well established for women with early breast cancer. A previous study from our group shows a beneficial effect of TARGIT-IORT on overall survival (OS) but not disease-free survival (DFS) after neoadjuvant chemotherapy compared to an external boost suggesting a potential non-inferiority of TARGIT-IORT. In this study we present results regarding the high-risk subset of patients (i...
February 1, 2017: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/28153508/tumor-infiltrating-lymphocytes-are-significantly-associated-with-better-overall-survival-and-disease-free-survival-in-triple-negative-but-not-estrogen-receptor-positive-breast-cancers
#20
Uma Krishnamurti, Ceyda Sonmez Wetherilt, Jing Yang, Limin Peng, Xiaoxian Li
Correlation between tumor-infiltrating lymphocytes (TILs) and complete pathological response (pCR) in breast cancers in neoadjuvant settings has been reported. In this study, we analyzed the association between TILs and diagnostic and prognostic parameters in estrogen receptor positive (ER+) and triple-negative breast cancer (TNBC) without neoadjuvant treatments. Three hundred and forty-four (344) patients who underwent mastectomy for breast cancer (187 ER+ and 157 TNBC) without neoadjuvant treatments were evaluated...
January 30, 2017: Human Pathology
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