非小细胞肺癌组织中Bmi-1的表达及临床意义的meta分析

Meta-analysis of Bmi-1 expression and clinical significance in non-small cell lung cancer

目的探讨B细胞特异性莫洛尼白血病毒插入位点1(Bmi-1)的表达与非小细胞肺癌(nonsmall cell lung cancer,NSCLC)的关系。方法检索Pubmed、Embase、Web of Science、中国期刊全文数据库(CNKI)、万方和维普数据库,检索日期自数据库建库至2015-03,同时采用文献追溯、手工检索等方法查找有关Bmi-1与NSCLC的中英文病例-对照研究,按照已拟定的纳入与排除标准筛选符合系统性评价标准的研究。提取Bmi-1与临床病理特征相关数据,如性别、年龄、病理组织学分型等,应用Rev Man5.2软件进行数据分析。结果最终纳入11篇病例-对照研究,其中NSCLC组697例,对照组504例,meta分析结果显示Bmi-1在NSCLC组织中的表达水平明显高于对照组(P<0.01);Bmi-1表达与NSCLC分化程度、淋巴结转移、TNM分期相关(P均<0.01),但与其病理分型、肿瘤大小无明显相关(P均>0.05)。结论 Bmi-1表达水平的检测可能成为NSCLC早期诊断、预后判断及疗效监测的新方法。

Objective To investigate the association between the expression of B-cell specific moloney leu- kemia virus insertion site 1 （ Bmi-1 ） and non-small cell lung cancer（NSCLC）. Methods According to the inclusion and exclusion criteria, We independently searched the case-control studies of Bmi-1 and non-small cell lung cancer that published in Pubmed, Embase, Web of Science, CNKI, Wanfang database and VIP database both in Chinese and English until March 2015, and a retrospective review of the literatures was analyzed. We extracted the clinic pathological features of NSCLC relevant to Bmi-1, such as gender, age and histological type. All statistical analysis was performed by the RevManS. 2 Meta-analysis software. Results Eleven case-control studies were eventually re- cruited, including 697 cases of NSCLC patients and 504 cases of the control group. Meta-analysis indicated that the expression level of Bmi-1 in NSCLC was significantly higher than that in the control group（P 〈 0. 01 ）. The expression level of Bmi-1 in NSCLC was closely correlated with the degree of differentiation and the lymph node metastasis（ P 〈 0. 01 ）, but not correlated with the pathological types （P 〉 0. 05）. Conclusion The detection of Bmi-1 expression level may become a new method for the earlier diagnosis, prognosis and monitoring curative effects of NSCLC.