Liu Xu, Duan Qiongyu, Zhang Jian
Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning, China.
Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China.
Oncotarget. 2017 Aug 1;8(35):59698-59708. doi: 10.18632/oncotarget.19776. eCollection 2017 Aug 29.
As a well-known long non-coding RNA, has been demonstrated to be involved in carcinogenesis and progression of various human cancers. Previous studies have investigated the potential association between polymorphisms and cancer risk in Chinese population. However, the results remain conflicting. Therefore, for the first time, we conducted a meta-analysis to derive a more precise estimation of these associations for Chinese. PubMed, Embase, CNKI and Wanfang databases were systematically searched. Odds ratios with 95% confidence intervals were applied to assess the association between rs920778, rs4759314, rs7958904, rs874945 and rs1899663 polymorphisms of and cancer susceptibility. Heterogeneity, sensitivity analysis and publication bias were conducted to measure the robustness of our findings. A total of 21 eligible studies comprising 12,278 cases and 14,532 controls were analyzed. The pooled data showed that rs920778 polymorphism was significantly associated with an increased cancer risk in all five genetic models in Chinese population. As for rs4759314 and rs874945 polymorphisms, similarly increased risks were found in specific genetic models and stratified groups. However, significant decreases in cancer risk were observed for rs7958904 in the total population, as well as in subgroup analyses. In addition, lack of association was detected between rs1899663 polymorphism and cancer susceptibility. In summary, our meta-analysis implicates possible relationship between polymorphisms and cancer risk in Chinese population.
作为一种著名的长链非编码RNA,已被证明参与了多种人类癌症的发生和发展。先前的研究调查了中国人群中该基因多态性与癌症风险之间的潜在关联。然而,结果仍然相互矛盾。因此,我们首次进行了一项荟萃分析,以更精确地估计中国人中这些关联。系统检索了PubMed、Embase、CNKI和万方数据库。应用比值比及其95%置信区间来评估该基因rs920778、rs4759314、rs7958904、rs874945和rs1899663多态性与癌症易感性之间的关联。进行了异质性、敏感性分析和发表偏倚分析,以衡量我们研究结果的稳健性。共分析了21项符合条件的研究,包括12278例病例和14532例对照。汇总数据显示,在中国人群的所有五种遗传模型中,rs920778多态性与癌症风险增加显著相关。至于rs4759314和rs874945多态性,在特定的遗传模型和分层组中也发现了类似的风险增加。然而,在总体人群以及亚组分析中,rs7958904的癌症风险显著降低。此外,未检测到rs1899663多态性与癌症易感性之间的关联。总之,我们的荟萃分析表明中国人群中该基因多态性与癌症风险之间可能存在关联。