Abstract
背景与目的已有的研究表明结肠癌转移相关基因1(metastasis-associated in colon cancer 1, MACC1)是一个与肿瘤浸润转移相关的新基因,该基因能够调节肝细胞生长因子受体(hepatocyte growth factor receptor, c-met)的表达。本研究旨在探讨MACC1和c-met在非小细胞肺癌(non-small cell lung cancer, NSCLC)组织中的表达及其与浸润转移和预后的关系。方法采用免疫组化检测103例NSCLC组织及40例癌旁正常组织中MACC1和c-met蛋白的表达。结果MACC1和c-met在NSCLC组中的阳性表达率均明显高于正常肺组织(P < 0.001)。MACC1和c-met阳性率均与肺癌的分化程度、T分期、淋巴结转移和TNM分期相关(P < 0.05),而与性别、年龄、吸烟及组织学类型等无关(P > 0.05)。MACC1和c-met的表达呈正相关(r=0.403, P < 0.001)。Kaplan-Meier生存曲线显示MACC1和c-met阳性组5年生存率均明显低于阴性组(P < 0.05)。Cox多因素分析显示MACC1是NSCLC的独立预后因素(P=0.026)。结论MACC1和c-met的表达与肺癌的分化、浸润和转移密切相关,两者均对生存期有一定的影响,MACC1是NSCLC的独立预后危险因素。
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