JAK/STAT信号通路与肝细胞性肝癌的肿瘤进展和预后的相关性研究

目的:探讨JAK/STAT信号通路在肝细胞性肝癌组织中的表达及其与预后的关系。方法:选取196例肝细胞性肝癌组织标本,以正常肝脏组织标本20例作为对照,应用SABC免疫组化方法检测JAK-1蛋白和STAT-3蛋白的表达,分析二者与肝细胞性肝癌的病理分级、临床分期及预后的关系。结果:JAK-1蛋白和STAT-3蛋白在肝细胞性肝癌组织中的阳性表达率均高于正常肝脏组织(P=0.02,0.01);肝细胞性肝癌中JAK-1蛋白和STAT-3蛋白的表达与患者性别、年龄、肿瘤大小、有无肝硬化均无显著相关;包膜不完整(P=0.01,0.008)、出现门静脉癌栓(P=0.02)、分化未成熟(P=0.01,0.009)、临床III～IV期(P=0.02,0.008)的肝细胞性肝癌组织中JAK-1蛋白和STAT-3蛋白的表达明显高于有完整包膜、未出现门静脉癌栓、分化较成熟及临床I～II期的组织。Cox比例风险回归模型分析表明JAK-1蛋白和STAT-3蛋白均为影响肝细胞性肝癌预后的危险因素。结论:JAK/STAT信号通路的过度活化在肝细胞性肝癌的发生和发展过程中起重要作用,可以作为评价肝细胞性肝癌恶性程度及预后的重要生物学指标。

Study on correlation of JAK/STAT sig-nal pathway with progression and prog-nosis in hepatocellular carcinoma

AIM:To investigate the expression of JAK/STAT signal pathway in human hepatocellular carcinoma,and to evaluate its clinical significance in the progression and prognosis in hepatocellular carcinoma. METHODS:196 patients with hepatocellular carcinoma were examined for the expression of JAK-1 protein and STAT-3 protein by SABC immunohistochemistry. RESULTS:The positive expression rates of JAK-1 protein and STAT-3 protein in patients with hepatocellular carcinoma were significantly higher than those in 20 case...