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Moreover, breast cancer risk is heightened following use of the combined oral contraceptive pill and combined hormone replacement therapy. [4] Armed with this evidence that endogenous and exogenous changes in estrogen and progesterone levels modulate the risk of breast cancer, it is apparent that hormones can play a key role in breast cancer.
Estrogen deprivation therapy, also known as endocrine therapy, is a form of hormone therapy that is used in the treatment of breast cancer.Modalities include antiestrogens or estrogen blockers such as selective estrogen receptor modulators (SERMs) like tamoxifen, selective estrogen receptor degraders like fulvestrant, and aromatase inhibitors like anastrozole and ovariectomy.
Staging breast cancer is the initial step to help physicians determine the most appropriate course of treatment. As of 2016, guidelines incorporated biologic factors, such as tumor grade, cellular proliferation rate, estrogen and progesterone receptor expression, human epidermal growth factor 2 (HER2) expression, and gene expression profiling into the staging system.
About 5% to 10% of female breast cancer patients have a BRCA mutation, according to the American Cancer Society. When breast cancer is diagnosed early, the five-year relative survival rate is over ...
The mechanism of action of SERDs involves binding to the estrogen receptor, leading to a conformational change that facilitates recruitment of cellular machinery to degrade the receptor protein. By promoting degradation of the estrogen receptor, SERDs effectively inhibit estrogen signaling within cancer cells, thereby suppressing tumor growth.
A hormone-sensitive cancer, or hormone-dependent cancer, is a type of cancer that is dependent on a hormone for growth and/or survival. If a tumor is hormone-sensitive, it means that there are special proteins called receptors on cells surface. When the hormone bind the matched receptor, it results in growth and spread of cancer cells.
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