ANN ONCOL:基因改变与乳腺癌放疗抵抗

2017-11-26 MedSci MedSci原创

预后特征相似的乳腺癌患者最终的临床结局异质性很大,其中部分原因可能与放疗抵抗导致的局部复发有关。ANN ONCOL近期发表了一篇文章,研究乳腺癌局部复发的预测性分子标志

预后特征相似的乳腺癌患者最终的临床结局异质性很大,其中部分原因可能与放疗抵抗导致的局部复发有关。ANN ONCOL近期发表了一篇文章,研究乳腺癌局部复发的预测性分子标志。作者使用二代测序等技术分析2013年到2016年间纳入到ProfiLER临床研究的146例乳腺癌患者的遗传数据。回顾性收集患者和肿瘤数据,分析基因重组(突变、扩增和缺失)与这些数据的关系。仅选择在>3%的肿瘤中检测到的基因改变进行研究。最终共发现193个基因重组,其中16个在>3%的肿瘤出现。其中1个与局部复发风险显着相关。报道的PIK3CA突变携带者(n=31)平均局部无进展生存期为23.6年,PIK3CA野生型患者的局部无进展生存期为9.9年。多因素分析表明PIK3CA突变是局部复发的独立保护性因素。所有的其他突变,扩增或缺失均未发现与局部无进展生存期有关。文章最后认为,在乳腺癌患者中PIK3CA突变与局部复发风险降低有关。这与近期的研究发现一致,表明PIK3CA是影响放疗敏感性的一部分生物学通路。原始出处:E Bernichon,A Vallard,et al.Genomic alterations and ra

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    2017-12-05 minlingfeng
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    2017-11-26 131****1460

    学习了受益匪浅

    0

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    2017-11-26 1e14ffd0m25(暂无匿称)

    学习了

    0

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