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RB in breast cancer: differential effects in estrogen receptor-positive and estrogen receptor-negative disease.

机译:乳腺癌中的RB:在雌激素受体阳性和雌激素受体阴性疾病中的差异作用。

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摘要

In ER-negative cases, the association of RB pathway deregulation with better outcome appears to be due to improved response to some types of chemotherapy.7-9 This is likely to result, at least in part, from an impaired cellular DNA damage/genotoxic stress response in the absence of functional RB.2 In ER-positive cancers, RB pathway deregulation may be a marker of increased sensitivity to small molecule inhibitors of CDK4.7 These important findings provide impetus for further studies aimed at developing a clinically useful panel of biomarkers that can identify cancers with RB pathway deregulation and sensitivity to new therapies following independent validation in other patient cohorts.
机译:在ER阴性病例中,RB通路失调与更好的结局之间的关联似乎是由于对某些类型的化学疗法的反应有所改善[7-9]。这很可能至少部分是由于细胞DNA损伤/基因毒性受损所致。在没有功能性RB的情况下的应激反应。2在ER阳性癌症中,RB通路的失调可能是对CDK4.7小分子抑制剂敏感性增加的标志。这些重要发现为进一步开展研究提供了动力,这些研究旨在开发具有临床意义的CDK4.7。在其他患者队列中经过独立验证后,可以识别出具有RB通路失调和对新疗法敏感的生物标志物。

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