JAMA SURG:MGMT蛋白表达与Ⅱ或Ⅲ期胃癌患者预后及辅助化疗获益的关系

2017-11-22 MedSci MedSci原创

MGMT蛋白表达缺失已在几种恶性肿瘤中有所报道,可以预测远期预后结果。在胃癌中尚缺乏关于这一主题的报道且MGMT与氟尿嘧啶为基础的辅助化疗之间的关系尚不清楚。ANN SURG近期发表了一篇文章,研究MGMT对可切除胃癌患者的预后作用及对氟尿嘧啶为基础的辅助化疗的治疗反应

MGMT蛋白表达缺失已在几种恶性肿瘤中有所报道,可以预测远期预后结果。在胃癌中尚缺乏关于这一主题的报道且MGMT与氟尿嘧啶为基础的辅助化疗之间的关系尚不清楚。ANN SURG近期发表了一篇文章,研究MGMT对可切除胃癌患者的预后作用及对氟尿嘧啶为基础的辅助化疗的治疗反应。

研究纳入了445例在2007年八月1日到2008年12月30日之间接受根治性胃切除的胃癌患者。患者随机分为观察队列(n=200)和验证队列(n=245),观察组随访时间从2个月到76个月不等,验证组随访时间从2个月到79个月不等。2名病理医生在光镜下评估肿瘤细胞中MGMT免疫反应。分析MGMT表达与临床病理特征和预后之间的关系。根据MGMT表达评估总生存情况以及总死亡风险HR。纳入的445例患者中,315例为男性,所有患者平均年龄60岁。在观察队列及验证队列中MGMT阳性表达均与Ⅱ或Ⅲ期胃癌患者总生存改善有关。多因素分析结果表明,MGMT和TNM分期是总生存的独立预后因素。Ⅱ期患者中,MGMT阳性患者从氟尿嘧啶辅助化疗中的获益多于MGMT阴性的患者。

文章最后认为,胃癌MGMT阳性表达是有利的独立预后因素。当前的TNM分期系统联合MGMT表达可以有更准确的预后作用。该研究得出的结论需要进一步的随机临床试验进一步验证。

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    2017-11-24 xuyu
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    2017-11-22 orangesking

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