Steroid receptor coactivators, HER-2 and HER-3 expression is stimulated by tamoxifen treatment in DMBA-induced breast cancer
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چکیده
منابع مشابه
HER-3 expression in HER-2-amplified breast carcinoma
AIM OF THE STUDY To determine whether the expression of HER-3 influences the survival of HER-2 positive patients with breast cancer (BC). MATERIAL AND METHODS In the present work, the expression of HER-3 in a group of 35 HER-2 positive patients with BC was studied by performing immunohistochemistry (IHC) in formalin-fixed paraffin embedded tissues. RESULTS Higher HER-3 status if estimated b...
متن کاملExpression of heregulin, phosphorylated HER-2, HER-3 and HER-4 in HER-2 negative breast cancers.
A significant number of HER-2 amplified breast cancers is effectively treated by trastuzumab and further shows receptor-enhanced chemosensitivity. Recent studies have postulated transactivation of HER-2 also in tumors expressing phosphorylated/activated HER-2 (pHER-2) and of the HER-3/HER-4 ligand heregulin (HRG), independent of HER-2 amplification. As a consequence, a subset of tumors without ...
متن کاملHER-2 gene amplification in human breast cancer without concurrent HER-2 over-expression
BACKGROUND Testing for human epidermal growth factor receptor-2 (HER-2) in breast cancer is performed by either immunohistochemistry (IHC) or in situ hybridization (ISH). The growth factor receptor-bound protein-7 (GRB7) gene is in close proximity to HER-2 on chromosome 17q11-12 and codes a signal transduction molecule shown to be an independent adverse marker in breast cancer. METHODS HER-2 ...
متن کاملAnti-HER-3 MAbs inhibit HER-3-mediated signaling in breast cancer cell lines resistant to anti-HER-2 antibodies.
Two members of the EGF receptor family, HER2 and HER3, act as key oncogenes in breast cancer cells. A MAb against HER2, trastuzumab, interferes with HER2 signaling and istherapeutically effective in humans. Here, we explored the biologic effects of an antibody against HER3 (alpha-HER3ECD) in the invasive breast cancer cell lines MCF-7ADR and MDA-MB-468. Pretreating the breast cancer cells with ...
متن کاملRelation between Estrogen and Progesterone Receptor Status with p53, Ki67 and Her-2 Markers in Patients with Breast Cancer
Background: Breast cancer is the most common cancer in women, containing approximately one third of all illnesses in women. Assessment of molecular markers is valuable in predicting the outcome of disease and decision making for optimal treatment. The purpose of this study was to determine the relationship between estrogen and progesterone receptors with Her-2, Ki67, P53, and clinicopathologica...
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ژورنال
عنوان ژورنال: BMC Cancer
سال: 2012
ISSN: 1471-2407
DOI: 10.1186/1471-2407-12-247