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MGMT和ERCC1在胃癌及癌前病变中的表达及意义

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摘要 目的探讨DNA损伤修复基因产物O6-甲基鸟嘌呤-DNA甲基转移酶(MGMT)与切除修复交叉互补基因1(ERCC1)的表达,及其与胃癌发生及生物学行为的关系。方法采用免疫组化SP法检测MGMT和ER-CC1的表达情况,并与临床病理特征相比较。结果 MGMT蛋白在轻度异型增生胃黏膜的表达率高于早期胃癌及进展期胃癌,ERCC1在正常胃黏膜的表达率高于早期胃癌及进展期胃癌。MGMT表达与胃癌分化程度、淋巴结转移有关,ERCC1与分化程度、浸润深度、淋巴结转移有关。胃癌中MGMT表达与ERCC1表达呈正相关。结论 MGMT、ERCC1可能在胃癌发生中起重要作用,有可能成为判断胃癌生物学行为的有用指标。
出处 《山东医药》 CAS 北大核心 2011年第16期80-82,共3页 Shandong Medical Journal
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