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Breast cancer estrogen positive

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https://www.readbyqxmd.com/read/27926948/intrinsic-subtype-switching-and-acquired-erbb2-her2-amplifications-and-mutations-in-breast-cancer-brain-metastases
#1
Nolan Priedigkeit, Ryan J Hartmaier, Yijing Chen, Damir Vareslija, Ahmed Basudan, Rebecca J Watters, Roby Thomas, Jose P Leone, Peter C Lucas, Rohit Bhargava, Ronald L Hamilton, Juliann Chmielecki, Shannon L Puhalla, Nancy E Davidson, Steffi Oesterreich, Adam M Brufsky, Leonie Young, Adrian V Lee
Importance: Patients with breast cancer (BrCa) brain metastases (BrM) have limited therapeutic options. A better understanding of molecular alterations acquired in BrM could identify clinically actionable metastatic dependencies. Objective: To determine whether there are intrinsic subtype differences between primary tumors and matched BrM and to uncover BrM-acquired alterations that are clinically actionable. Design, Setting, and Participants: In total, 20 cases of primary breast cancer tissue and resected BrM (10 estrogen receptor [ER]-negative and 10 ER-positive) from 2 academic institutions were included...
December 7, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27926932/epsin-family-member-3-and-ribosome-related-genes-are-associated-with-late-metastasis-in-estrogen-receptor-positive-breast-cancer-and-long-term-survival-in-non-small-cell-lung-cancer-using-a-genome-wide-identification-and-validation-strategy
#2
Birte Hellwig, Katrin Madjar, Karolina Edlund, Rosemarie Marchan, Cristina Cadenas, Anne-Sophie Heimes, Katrin Almstedt, Antje Lebrecht, Isabel Sicking, Marco J Battista, Patrick Micke, Marcus Schmidt, Jan G Hengstler, Jörg Rahnenführer
BACKGROUND: In breast cancer, gene signatures that predict the risk of metastasis after surgical tumor resection are mainly indicative of early events. The purpose of this study was to identify genes linked to metastatic recurrence more than three years after surgery. METHODS: Affymetrix HG U133A and Plus 2.0 array datasets with information on metastasis-free, disease-free or overall survival were accessed via public repositories. Time restricted Cox regression models were used to identify genes associated with metastasis during or after the first three years post-surgery (early- and late-type genes)...
2016: PloS One
https://www.readbyqxmd.com/read/27926517/suberoylanilide-hydroxamic-acid-induced-specific-epigenetic-regulation-controls-leptin-induced-proliferation-of-breast-cancer-cell-lines
#3
Xiuyan Feng, Han Han, Dan Zou, Jiaming Zhou, Weiqiang Zhou
Breast cancer is one of the most common malignancies among women in the world, investigating the characteristics and special transduction pathways is important for better understanding breast development and tumorigenesis. Leptin, a peptide hormone secreted from white adipocytes, may be an independent risk factor for breast cancer.Here, we treated suberoylanilide hydroxamic acid (SAHA) on Leptin-induced cell proliferation and invasion in the estrogen-receptor-positive breast cancer cell line MCF-7 and triple-negative breast cancer cell line MDA-MB-231...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27925180/a-16-yin-yang-gene-expression-ratio-signature-for-er-node-breast-cancer
#4
Wayne Xu, Gaofeng Jia, Nianguang Cai, Shujun Huang, James R Davie, Marshall Pitz, Shantanu Banerji, Leigh Murphy
Breast cancer is one of the leading causes of cancer death in women. It is a complex and heterogeneous disease with different clinical outcomes. Stratifying patients into subgroups with different outcomes could help guide clinical decision making. In this study, we used two opposing groups of genes, Yin and Yang, to develop a prognostic expression ratio signature. Using the METABRIC cohort we identified a16-gene signature capable of stratifying breast cancer patients into four risk levels with intention that low-risk patients would not undergo adjuvant systemic therapy, intermediate-low-risk patients will be treated with hormonal therapy only, and intermediate-high- and high-risk groups will be treated by chemotherapy in addition to the hormonal therapy...
December 7, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27923781/population-attributable-risk-of-modifiable-and-nonmodifiable-breast-cancer-risk-factors-in-postmenopausal-breast-cancer
#5
Rulla M Tamimi, Donna Spiegelman, Stephanie A Smith-Warner, Molin Wang, Mathew Pazaris, Walter C Willett, A Heather Eliassen, David J Hunter
We examined the proportions of multiple types of breast cancers in the population that were attributable to established risk factors, focusing on behaviors that are modifiable at menopause. We estimated the full and partial population attributable risk percentages (PAR%) by combining the relative risks and the observed prevalence rates of the risk factors of interest. A total of 8,421 cases of invasive breast cancer developed in postmenopausal women (n = 121,700) in the Nurses' Health Study from 1980-2010...
December 6, 2016: American Journal of Epidemiology
https://www.readbyqxmd.com/read/27923387/mammographic-texture-and-risk-of-breast-cancer-by-tumor-type-and-estrogen-receptor-status
#6
Serghei Malkov, John A Shepherd, Christopher G Scott, Rulla M Tamimi, Lin Ma, Kimberly A Bertrand, Fergus Couch, Matthew R Jensen, Amir P Mahmoudzadeh, Bo Fan, Aaron Norman, Kathleen R Brandt, V Shane Pankratz, Celine M Vachon, Karla Kerlikowske
BACKGROUND: Several studies have shown that mammographic texture features are associated with breast cancer risk independent of the contribution of breast density. Thus, texture features may provide novel information for risk stratification. We examined the association of a set of established texture features with breast cancer risk by tumor type and estrogen receptor (ER) status, accounting for breast density. METHODS: This study combines five case-control studies including 1171 breast cancer cases and 1659 controls matched for age, date of mammogram, and study...
December 6, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27919946/in-vivo-selection-of-intermediately-and-highly-malignant-variants-of-triple-negative-breast-cancer-in-orthotopic-nude-mouse-models
#7
Shuya Yano, Kiyoto Takehara, Hiroyuki Kishimoto, Hiroshi Tazawa, Yasuo Urata, Shunsuke Kagawa, Michael Bouvet, Toshiyoshi Fujiwara, Robert M Hoffman
AIM: Triple-negative breast cancer (TNBC), defined by the absence of receptors for estrogen, progesterone and human epithelial receptor 2 (HER2), is a recalcitrant disease in need of effective therapy. We previously isolated very-highly metastatic variants of the TNBC cell line MDA-MB-231 using serial orthotopic implantation of MDA-MB-231 human breast cancer cells in nude mice. MATERIALS AND METHODS: MDA-MB-231 cells expressing red fluorescent protein (MDA-MB-231-RFP) (1×10(7) cells/site) were initially injected subcutaneously in the flank of nude mice...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27913931/prognostic-value-of-tumor-infiltrating-lymphocyte-subsets-in-breast-cancer-depends-on-hormone-receptor-status
#8
Yul Ri Chung, Hyun Jeong Kim, Min Hye Jang, So Yeon Park
PURPOSE: Interaction between immune-regulatory proteins and tumor infiltrating lymphocytes (TILs) is complex, and their associations may have significant clinical implications. This study was designed to evaluate the relationships between immunomodulatory proteins and TIL subsets and their impact on prognosis in breast cancer. METHODS: 377 invasive breast cancer cases were selected, and immunohistochemistry was performed for HLA-A, HLA-ABC, and indoleamine 2,3-dioxygenase (IDO); CD4+, CD8+, and FOXP3+ T cells were counted in intratumoral and stromal areas for both absolute numbers as well as their ratios...
December 2, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27909883/high-expression-of-ceacam19-a-new-member-of-carcinoembryonic-antigen-gene-family-in-patients-with-breast-cancer
#9
Mehrdad Asghari Estiar, Rezvan Esmaeili, Ali-Akbar Zare, Leila Farahmand, Hassan Fazilaty, Ali Zekri, Narges Jafarbeik-Iravani, Keivan Majidzadeh-A
Carcinoembryonic antigen (CEA) family members play important roles in malignancies and are introduced as biomarkers in different types of cancers. Among them CEACAM19 (CEAL1) gene, a new member of the CEA family, remains to be fully elucidated. The aim of this study was investigating the mRNA expression level of CEACAM19 in tumor samples of breast cancer patients compared to breast tissue of normal individuals. We evaluated the expression level of this gene in 75 breast tumors by using real-time quantitative PCR...
December 1, 2016: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/27905324/primary-neuroendocrine-carcinoma-of-the-breast-a-single-center-experience-and-review-of-the-literature
#10
Paolo Locurto, Angelo Danilo Antona, Antonietta Grillo, Antonio Ciulla, Stefania Martorana, Calogero Cipolla, Giuseppa Graceffa, Salvatore Vieni
: Neuroendocrine carcinoma of the breast is an extremely rare tumor. A standard treatment has yet to be established because only a few cases have been reported in literature. The authors report five cases observed from January 2007 to December 2014 and a review of literature. Four patients underwent quadrantectomy and in two cases axillary nodal dissection and only one to mastectomy with axillary nodal dissection. Tumor size was from T1 to T2 with N0 to N1, according TNM classification...
November 28, 2016: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/27905024/potential-anti-genotoxic-effect-of-sodium-butyrate-to-modulate-induction-of-dna-damage-by-tamoxifen-citrate-in-rat-bone-marrow-cells
#11
Haidan M El-Shorbagy
Sodium butyrate (SB) is one of the histone deacetylase inhibitors (HDACi's) that is recently evidenced to have a prooxidant activity and an ability to reduce hydrogen peroxide-induced DNA damage. Since the majority of estrogen receptor positive breast cancer patients are treated with tamoxifen citrate (TC), which exerts well established oxidative and genotoxic effects, thus the basic objective of this study is to determine whether SB could ameliorate or curate tamoxifen citrate-induced oxidative DNA damage and genotoxic effect in vivo through up-regulation of some antioxidant enzymes...
November 30, 2016: Cytotechnology
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
#12
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/27903186/clinical-outcomes-in-patients-with-brain-metastases-from-breast-cancer-treated-with-single-session-radiosurgery-or-whole-brain-radiotherapy
#13
Michael Mix, Rania Elmarzouky, Tracey O'Connor, Robert Plunkett, Dheerendra Prasad
OBJECTIVE Gamma Knife radiosurgery (GKRS) is used to treat brain metastases from breast cancer (BMB) as the sole treatment or in conjunction with tumor resection and/or whole brain radiotherapy (WBRT). This study evaluates outcomes in BMB based on treatment techniques and tumor biological features. METHODS The authors reviewed all patients treated with BMB between 2004 and 2014. Patients were identified from a prospectively collected radiosurgery database and institutional tumor registry; 214 patients were identified...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27903149/obesity-and-breast-cancer-prognosis-evidence-challenges-and-opportunities
#14
Sao Jiralerspong, Pamela J Goodwin
Purpose To summarize the evidence of an association between obesity and breast cancer prognosis. Methods We reviewed the literature regarding overweight and obesity and breast cancer survival outcomes, overall and with regard to breast cancer subtypes, breast cancer therapies, biologic mechanisms, and possible interventions. We summarize our findings and provide clinical management recommendations. Results Obesity is associated with a 35% to 40% increased risk of breast cancer recurrence and death and therefore poorer survival outcomes...
December 10, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27900579/aryl-hydrocarbon-receptor-induced-intratumoral-aromatase-in-breast-cancer
#15
Ryoko Saito, Yasuhiro Miki, Shuko Hata, Takanori Ishida, Takashi Suzuki, Noriaki Ohuchi, Hironobu Sasano
PURPOSE: Aryl hydrocarbon receptor (AhR) inhibits estrogen receptor (ER) pathway, which may suppress estrogen-dependent cell proliferation. However, the correlation between AhR stimulation and intratumoral estrogen synthesis, especially through aromatase, has not been reported to date. In the present study, we examined this correlation in breast cancer cells. METHODS: We examined AhR and aromatase immunoreactivity in 29 patients with invasive ductal carcinoma. We performed in vitro studies using three breast carcinoma cell lines, MCF-7, T47D, and MDA-MB-231...
November 30, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27899970/fish-testing-of-her2-immunohistochemistry-1-invasive-breast-cancer-with-unfavorable-characteristics
#16
Stella Petroni, Lucia Caldarola, Rachele Scamarcio, Francesco Giotta, Agnese Latorre, Anita Mangia, Giovanni Simone
Diagnostic assays for human epidermal growth factor receptor 2 (HER2) expression have a high predictive value because patients with HER2-positive tumors could benefit from HER2-targeted therapy. The aim of the present study is to analyze the incidence of HER2 gene amplification in selected tumors with adverse features that scored 1+ by immunohistochemistry (IHC). For that purpose, 331 consecutive invasive breast cancers (IBCs) were tested by IHC for HER2 expression between January and December 2013, 102 of which (31%) scored 1+...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899083/tumor-characteristics-and-prognosis-in-familial-breast-cancer
#17
G Arpino, M Pensabene, C Condello, R Ruocco, I Cerillo, R Lauria, V Forestieri, M Giuliano, C De Angelis, M Montella, A Crispo, S De Placido
BACKGROUND: Approximately 5-10% of breast cancers are hereditary and their biology and prognosis appear to differ from those of sporadic breast cancers. In this study we compared the biological features and clinical characteristics of non metastatic breast cancer in patients with BRCA mutations versus patients with a family history suggesting hereditary breast cancer but without BRCA mutations (BRCA wild type) versus patients with sporadic disease, and correlated these findings with clinical outcome...
November 29, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27895745/evaluation-of-the-association-between-hif-1%C3%AE-and-her-2-expression-hormone-receptor-status-ki-67-expression-histology-and-tumor-fdg-uptake-in-breast-cancer
#18
Sevi M Sureyya Cerci, Kemal Kursat Bozkurt, Hasan Erol Eroglu, Celal Cerci, Evrim Erdemoglu, Pinar Talip Bulbul, Meltem Cetin, Recep Cetin, Ibrahim Metin Ciris, Mahmut Bulbul
The present study aimed to examine hypoxia-inducible factor (HIF)-1α expression and its association with glucose uptake in invasive breast cancer. In addition, connections between glucose uptake and several other prognostic parameters of breast cancer were studied. Between August 2013 and April 2015, 92 patients with biopsy-diagnosed breast cancer were subjected to (18)F-fluorodeoxyglucose positron emission tomography/computed tomography. The primary tumor and nodal maximum standardized uptake values (SUVmax) were recorded, and HIF-1α expression and clinical parameters, including tumor mass, estrogen receptor (ER) and progesterone receptor (PgR) levels, human epidermal growth factor receptor-2 (HER-2), Ki-67 index, grade and histology, were analyzed...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895741/the-prognostic-significance-of-estrogen-receptor-%C3%AE-in-head-and-neck-squamous-cell-carcinoma
#19
Kresimir Grsic, Iva Ledinsky Opacic, Sanda Sitic, Marija Milkovic Perisa, Petar Suton, Bozena Sarcevic
Head and neck squamous cell carcinoma (HNSCC) is the fifth most common cancer in the world. Although multimodal and targeted therapy is now used in therapeutic procedures, the survival of patients with HNSCC has remained unchanged over the last 30 years. A number of studies have demonstrated that the increased expression of intranuclear ERβ in breast, lung and colon cancer is a favorable prognostic marker associated with higher survival rates. However, the clinical significance of sex hormone receptors in HNSCC remains unclear...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895739/gene-expression-profiling-of-the-8q22-24-position-in-human-breast-cancer-tspyl5-mtdh-atad2-and-ccne2-genes-are-implicated-in-oncogenesis-while-wisp1-and-ext1-genes-may-predict-a-risk-of-metastasis
#20
Afsoon Taghavi, Mohammad Esmaeil Akbari, Mohammad Hashemi-Bahremani, Nahid Nafissi, Ahad Khalilnezhad, Seyed Mohammad Poorhosseini, Feyzollah Hashemi-Gorji, Vahid Reza Yassaee
Gene expression profiling has been suggested to predict breast cancer outcome. The prognostic value of the 8q22-24 position in breast cancer remains to be elucidated. The present study evaluated expression patterns of the genes located at this position in metastatic and non-metastatic breast cancer. A total of 85 patients with recurrent/metastatic (n=15) and non-metastatic (n=70) early-stage, estrogen receptor-positive and lymph node-negative breast tumors were included. In addition, 15 normal breast tissue samples were used as controls...
November 2016: Oncology Letters
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