Br J Cancer:携带BRCA2突变的乳腺癌患者的生存率分析

2021-02-19 xiaozeng MedSci原创

早期乳腺癌患者需要根据肿瘤的特征进行治疗方案的选择,这些肿瘤特征包括肿瘤的大小、等级、激素受体表达状态、HER2表达状态、腋下淋巴结状态和患者的喜好。

早期乳腺癌患者需要根据肿瘤的特征进行治疗方案的选择,这些肿瘤特征包括肿瘤的大小、等级、激素受体表达状态、HER2表达状态、腋下淋巴结状态和患者的喜好。

越来越多的证据表明,相关易感基因(如BRCA1和BRCA2)的遗传突变也与疾病的发生息息相关。既往研究显示,大多数与BRCA2突变相关的乳腺癌表现为ER阳性,而在一般的早期患者人群中,ER阳性相比于ER阴性是一种有利的预后因素。然而,最近的研究显示,ER阳性和肿瘤的低级别状态可能并不能很好的预测BRCA2突变携带患者的良好预后。


由于目前尚无相关研究报道各种乳腺癌治疗策略对BRCA2突变患者的影响。因此,该研究旨在探索双侧卵巢切除术和其他治疗策略对BRCA2突变型乳腺癌患者存活率的影响。

BRCA2突变型乳腺癌患者的10年生存率

研究人员通过结合五个不同的数据集(回顾性和前瞻性)研究,分析了664名患有I–III期乳腺癌的BRCA2突变型女性患者。从诊断到死亡,对受试者进行了平均7.2年的随访。通过分析患者的肿瘤特征和癌症治疗记录,并Cox回归模型确定相关生存预测因素,并针对其他治疗方法和预后特征进行调整。


结果显示,ER阳性患者的10年乳腺癌生存率为78.9%,而ER阴性患者为82.3%。进行双侧卵巢切除术的妇女的10年乳腺癌生存率为89.1%,而未进行双侧卵巢切除术的妇女的10年乳腺癌生存率仅为59.0%。调整后的化疗风险比为0.83。

BRCA2突变型乳腺癌患者的10年生存率

总而言之,该研究结果揭示,对于患有乳腺癌的携带BRCA2突变的女性患者,ER阳性状态并不能预示患者较高的生存率。卵巢切除术与乳腺癌死亡风险的降低相关,应该在治疗计划中予以考虑。


原始出处:

Evans, D.G., Phillips, KA., Milne, R.L. et al. Survival from breast cancer in women with a BRCA2 mutation by treatment. Br J Cancer (18 February 2021).

 

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    2021-12-21 yige2014
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    2021-02-21 智智灵药
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    2021-02-21 TZF0810

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