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Tamoxifen-resistant Breast Cancer: Causes of resistance and Possible Management

机译:他莫昔芬耐药的乳腺癌:耐药的原因和可能的管理

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Tamoxifen has been used for the systemic treatment of patients with breast cancer by block the action of estrogen is also used to lower a woman's chance of developing breast cancer if she has a high risk . Treatment success is primarily dependent on the presence of the estrogen receptor (ER) in the breast carcinoma. While about half of patients with advanced ER-positive disease immediately fail to respond to tamoxifen, in the responding patients the disease ultimately progresses to a resistant phenotype. The possible causes for intrinsic and acquired resistance have been attributed to the pharmacology of tamoxifen, alterations in the structure and function of the ER and the interactions with the tumor environment and genetic alterations in the tumor cells.
机译:他莫昔芬通过阻断雌激素的作用被广泛用于乳腺癌患者的全身治疗,如果风险高的话,它也可以降低女性患乳腺癌的机会。治疗的成功主要取决于乳腺癌中雌激素受体(ER)的存在。虽然约有一半的晚期ER阳性晚期患者无法立即对他莫昔芬产生反应,但在有反应的患者中,该疾病最终会发展为耐药表型。内在和获得性耐药的可能原因归因于他莫昔芬的药理作用,内质网结构和功能的改变以及与肿瘤环境的相互作用以及肿瘤细胞的遗传改变。

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