【摘要】 目的:探讨胃癌组织中Bmi-1蛋白的表达与胃癌患者病理因素及预后的相关性。方法:收集我院2002-2004年146例有3年以上完整随访资料的胃癌术后患者,采用免疫组织化学法对手术标本石蜡切片进行染色,检测Bmi-1蛋白的表达情况,并分析该蛋白表达对胃癌患者临床病理因素及预后的影响。结果:Bmi-1蛋白在本组胃癌中阳性表达率为67.8%(99/146)。Bmi-1的表达与胃癌大小、临床分期、淋巴结转移和侵润深度密切相关(P<0.05),而与患者的性别、年龄、肿瘤分化程度等无关(P>0.05)。Bmi-1阳性表达者生存率明显低于阴性者(P<0.01)。多因素分析显示,Bmi-1表达、癌侵润深度、淋巴结转移、远处转移、肿瘤大小、术后化疗均为具有显著统计学意义的影响预后的因素。结论:Bmi-1在胃癌组织表达状态与胃癌的生长和侵润转移关系密切,可以作为反映胃癌生物学行为和判断预后的有效指标。更多还原

【Abstract】 AIM: To investigate the relationship between expression of Bmi-1(B cell-specific MLV integration site-1) in gastric cancer and its clinicopathologic significance.METHODS: 146 surgical patients with gastric carcinoma were followed up at least 2 years.Expression of Bmi-1 protein was examined by immunohistochemistry in their archival paraffin embedded tissue specimens.RESULTS: The intensive positive rate of Bmi-1 expression in gastric cancer was 67.8%(99/146).Expression of Bmi-1 was highly correlated with tumor size,clinical stage,lymph node metastasis and T classification(P<0.05),but not with sex,age,tumor differentiation,etc.(P>0.05).The survival rate in the patients with Bmi-1 expression was much lower than that in those patients without Bmi-1 expression(P<0.01).Multivariate analysis indicated that Bmi-1 expression,T classification,lymph node metastasis,distant metastasis,tumor size and postoperative chemotherapy were all significantly prognostic factors of gastric carcinoma.CONCLUSION: Overexpression of Bmi-1 in patients with gastric carcinoma enhances the possibility of invasion and metastasis,implying a poor prognosis.Bmi-1 may serve as fairly a good prognostic factor to indicate biologic behavior and prognosis in gastric carcinoma.更多还原