Abstract

背景与目的剪切修复偶联因子1(Excision-Repair Cross-Complementing 1, ERCC1)是核苷酸外切修复家族中的重要成员,它在核酸损伤修复过程和凋亡过程中起着重要作用。蛋白激酶C-α(Protein kinase Calpha, PKCα)是蛋白激酶C(PKC)的一种同工酶,PKCα调控细胞的转化和增殖,是肿瘤细胞中重要的信号途径。本研究初步探索ERCC1和PKCα在非小细胞肺癌(non-small cell lung cancer, NSCLC)中表达所代表的临床意义。方法运用免疫组化方法检测51例NSCLC组织、21例癌旁组织中ERCC1和PKCα的表达,并采用SPSS 13.0软件进行相关统计分析。结果ERCC1和PKCα在肿瘤组阳性率明显高于癌旁组(P < 0.05);ERCC1与临床分期和N分期等因素有关,临床Ⅲ+Ⅳ期及N1-2期患者ERCC1阳性率要分别高于Ⅰ+Ⅱ期和N0期患者(P=0.011, P=0.015);ERCC1阴性组的5年生存时间高于阳性组(P < 0.05);Spearman相关分析提示ERCC1与PKCα之间存在正相关(r=0.425, P=0.002)。结论ERCC1和PKCα可能与NSCLC的发生相关,ERCC1可能与肿瘤的预后相关。ERCC1和PKCα之间可能存在共同作用通路。

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