CLIN CANCER RES:不同黑色素瘤亚型的ERBB2突变率

2018-12-13 MedSci MedSci原创

BRAF V600野生型黑色素瘤患者接受检查点抑制治疗效果有限,需要其他的有效治疗策略。ERBB2突变可能适合于靶向抑制,但是黑色素瘤亚型中ERBB2突变率尚未得到很好地阐述。CLIN CANCER RES近期发表了一篇文章研究这一问题。

BRAF V600野生型黑色素瘤患者接受检查点抑制治疗效果有限,需要其他的有效治疗策略。ERBB2突变可能适合于靶向抑制,但是黑色素瘤亚型中ERBB2突变率尚未得到很好地阐述。CLIN CANCER RES近期发表了一篇文章研究这一问题。

作者分析了2014年至2018年间在Memorial Sloan Kettering癌症中心接受治疗的所有患有非妊娠性黑色素瘤(皮肤,肢端,粘膜和未知原发)的患者,肿瘤通过MSK-IMPACT进行测序以研究ERBB2和其他已知的经典驱动基因BRAF,NRAS,KIT,NF1,GNAQ和GNA11的突变情况。研究结果表明,1例检查点抑制剂耐药的肢端黑素瘤患者具有ERBB2扩增且对曲妥珠单抗出现持久的完全缓解。732例黑素瘤患者的ERBB2和经典驱动基因突变测序结果表明,在肢端(3%)和粘膜(3%)黑素瘤中检测到ERBB2扩增。在皮肤(1%),肢端(2%)和粘膜(2%)亚型中发现ERBB2突变,并且经常与NF1改变共同出现。缺乏经典驱动基因的140名肿瘤患者中,在肢端(7%)和粘膜(6%)黑素瘤中检测到ERBB2扩增。

文章最后认为,ERBB2扩增存在于少数肢端和粘膜黑色素瘤中。在非葡萄膜黑色素瘤亚型中检测到ERBB2活化突变,且经常与经典驱动基因共同存在。

原始出处:

Lee S. Gottesdiener, Shannon O'Connor, et al. Rates of ERBB2 Alterations across Melanoma Subtypes and a Complete Response to Trastuzumab Emtansine in an ERBB2-Amplified Acral Melanoma. CLIN CANCER RES. December 2018 doi: 10.1158/1078-0432.CCR-18-1397

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    2019-04-23 sunylz
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