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首页> 外文期刊>Nature clinical practice. Oncology >Hormone receptors in defining breast cancer prognosis-time for a rethink?
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Hormone receptors in defining breast cancer prognosis-time for a rethink?

机译:激素受体在定义乳腺癌预后的时候需要重新思考吗?

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Estrogen receptors (ER) and progesterone receptors (PR) have been used as predictive markers in breast cancer for many years. ER is an accepted 'gold standard', which can accurately determine response to hormone therapy.1 Both ER and PR are ligand-activated transcription factors. PR is a transcriptional target of ER and its expression indicates a functional ER pathway. Positive or negative gene transcription is further defined by the extent of interaction of ligand-bound receptor with co-regulatory proteins-co-activators, which enhance gene expression, and co-repressors, which have a counterbalancing effect. Early measurements of ER and PR used biochemical methods such as the ligand-binding assay, but these methods have gradually given way to immunohistochemistry, which is now in widespread use.
机译:雌激素受体(ER)和孕激素受体(PR)多年来一直被用作乳腺癌的预测指标。 ER是公认的“黄金标准”,可以准确确定对激素治疗的反应。1ER和PR都是配体激活的转录因子。 PR是ER的转录靶标,其表达表明功能性ER途径。正或负基因转录进一步由配体结合的受体与增强基因表达的共调节蛋白-共激活因子和具有平衡作用的共阻遏蛋白的相互作用程度定义。 ER和PR的早期测量使用生物化学方法,例如配体结合测定法,但这些方法已逐渐被免疫组织化学所取代,目前已被广泛使用。

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