南方医科大学学报 ›› 2016, Vol. 36 ›› Issue (08): 1153-.

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c-met蛋白与食管鳞状细胞癌的临床分期及细胞分化程度的相关性

周子浩,陈刚,谢至,唐继鸣,贲晓松,谢亮,周海榆,张冬坤,叶雄   

  • 出版日期:2016-08-20 发布日期:2016-08-20

Predictive value of c-met for long-term mortality in patients with esophageal squamous cell carcinoma

  • Online:2016-08-20 Published:2016-08-20

摘要: 目的探讨c-met 蛋白与食管鳞癌病人临床分期及细胞分化程度的相关性。方法选择于本院就诊的食管鳞癌患者100 例,采用免疫组织化学检测食管癌组织中c-met蛋白的表达情况,根据c-met蛋白的平均表达水平将食管癌患者分为c-met阴性 组(c-met蛋白不表达)和c-met阳性组(c-met蛋白有表达),并对这两组病人的临床病理特征、总生存时间进行比较。结果对 100名食管鳞癌患者(男67例,女33例,平均年龄为59岁)的实验结果进行分析。c-met蛋白表达阴性组51例,c-met蛋白表达阳 性组49例。c-met蛋白表达阳性者较c-met蛋白表达阴性者的临床分期更高,分化程度更低。Kaplan-Meier生存函数曲线表 明,阳性组患者生存率较低值组显著降低c-met蛋白表达阴性组中位生存时间为48.2月,蛋白表达阳性组为30.9月,差异具有统 计学意义(P<0.05)。COX 回归分析表明,c-met 过表达是食管鳞癌患者总生存的独立不良预后因素(HR:2.34,95% CI: 1.63~4.54,P<0. 05)。结论c-met蛋白在食管鳞癌组织中的表达与食管癌的分期和分化程度密切相关,并且可能是患者随访期 间生存时间的独立预测因子。

Abstract: Objective To explore the correlation of c-met protein with the clinical staging and cell differentiation of esophageal squamous cell carcinoma (ESCC). Methods A total of 100 patients with ESCC were enrolled were examined for expression of c-met protein using immunohistochemistry, and the patients in negative and positive c-met expression groups were compared for clinicopathological characteristics and overall survival. Results The 100 ESCC patients included 67 male and 33 female patients with a median age of 59 years; 49 of the patients were negative and 51 were positive for c-met expression. Positive c-met expression was significantly correlated with advanced TMN stages and lower tumor differentiation. Kaplan-Meier survival curve showed that the median survival time of c-met-positive patients was significantly reduced compared with that of c-met-negative patients (30.9 vs 48.2 months, P<0.05). COX regression analysis showed that c-met was a independent risk factor for the overall survival of the patients (HR: 2.34, 95% CI: 1.63-4.54, P<0.05). Conclusion A positive expression of c-met protein is significantly correlated with an advanced TMN stage, lower tumor differentiation and a poor prognosis, and may serve as a indicator for predicting the prognosis of ESCC.