Chen Yang, Yu Zhiguo, Zhang Bo, Chang Zhengqi, Wang Hong, Liu Zhandi
Cancer Center, Chinese PLA General Hospital and Chinese PLA Medical School, Beijing, China.
Tumour Biol. 2014 Oct;35(10):9557-62. doi: 10.1007/s13277-014-2198-0. Epub 2014 Jun 24.
A number of studies have investigated the association between CRR9p polymorphism and risk of lung cancer (LC), yet the role in LC pathogenesis remains unclear owing to inconsistencies across studies. We searched PubMed, Embase, and Web of Science for all medical literature published until January 2014. Pooled odds ratios (ORs) and 95 % confidence intervals (CIs) were obtained by means of the fixed effects model. Data from eight studies satisfying the predesigned inclusion criteria were selected for this meta-analysis. We found a statistically significant evidence for a protective effect on the overall LC risk (TT vs. CC: OR = 0.78, 95 % CI = 0.70-0.87, P het = 0.299; TT vs. CT + CC: OR = 0.81, 95 % CI = 0.73-0.90, P het = 0.113; T vs. C: OR = 0.90, 95 % CI = 0.86-0.95, P het = 0.758; TT + CT vs. CC: OR = 0.92, 95 % CI = 0.87-0.98, P het = 0.892). Both Caucasian and Asian populations were suggested to have a reduced risk of developing such cancer. In the analysis of the association between rs401681 and non-small cell lung cancer (NSCLC) risks, all of the contrast models showed similar results except the CT vs. CC genetic model (OR = 0.93, 95 % CI = 0.84-1.02, P het = 0.568). Our meta-analysis provides supportive evidence that CRR9p polymorphism may influence a risk of LC and NSCLC in a protective model.
多项研究调查了CRR9p多态性与肺癌(LC)风险之间的关联,但由于各研究结果不一致,其在LC发病机制中的作用仍不明确。我们检索了PubMed、Embase和Web of Science,查找截至2014年1月发表的所有医学文献。通过固定效应模型获得合并比值比(OR)和95%置信区间(CI)。本荟萃分析选取了八项符合预先设定纳入标准的研究数据。我们发现有统计学意义的证据表明其对总体LC风险有保护作用(TT与CC比较:OR = 0.78,95% CI = 0.70 - 0.87,P异质性 = 0.299;TT与CT + CC比较:OR = 0.81,95% CI = 0.73 - 0.90,P异质性 = 0.113;T与C比较:OR = 0.90,95% CI = 0.86 - 0.95,P异质性 = 0.758;TT + CT与CC比较:OR = 0.92,95% CI = 0.87 - 0.98,P异质性 = 0.892)。白种人和亚洲人群患这种癌症的风险均有所降低。在分析rs401681与非小细胞肺癌(NSCLC)风险之间的关联时,除CT与CC基因模型外(OR = 0.93,95% CI = 0.84 - 1.02,P异质性 = 0.568),所有对比模型均显示相似结果。我们的荟萃分析提供了支持性证据,表明CRR9p多态性可能在保护模型中影响LC和NSCLC的风险。