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雌激素受体:乳腺癌中的一种稳定表型。

Oestrogen receptor: a stable phenotype in breast cancer.

作者信息

Robertson J F

机构信息

City Hospital, Nottingham, UK.

出版信息

Br J Cancer. 1996 Jan;73(1):5-12. doi: 10.1038/bjc.1996.2.

Abstract

Oestrogen receptor (ER) expression in breast cancer is regarded as a phenotype that may change during the natural history of the disease or during endocrine therapy. It has been suggested that in up to 70% of tumours that show acquired resistance the mechanism may be changed in ER status from positive to negative. This paper proposes an alternative hypothesis that ER expression in a stable phenotype in breast cancer. The paper reviews the literature on ER expression during the natural history of breast cancer in patients and also presents data on the effect of endocrine therapy on ER expression. If the alternative hypothesis is true it has important implications for treatment from chemoprevention to acquired endocrine resistance in advanced disease. Equally, if the hypothesis is true, attempts to develop laboratory models of endocrine resistance where ER-positive tumours become ER negative need to be re-evaluated.

摘要

雌激素受体(ER)在乳腺癌中的表达被视为一种可能在疾病自然史或内分泌治疗过程中发生变化的表型。有人提出,在高达70%显示获得性耐药的肿瘤中,ER状态的机制可能从阳性转变为阴性。本文提出了另一种假说,即ER在乳腺癌中以稳定表型表达。本文回顾了关于乳腺癌患者疾病自然史中ER表达的文献,并展示了内分泌治疗对ER表达影响的数据。如果该替代假说成立,那么从化学预防到晚期疾病的获得性内分泌耐药的治疗都将具有重要意义。同样,如果该假说成立,那么开发ER阳性肿瘤变为ER阴性的内分泌耐药实验室模型的尝试需要重新评估。

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