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Polymorphisms of microRNA sequences or binding sites and lung cancer: a meta-analysis and systematic review.


ABSTRACT: OBJECTIVE: Functional single nucleotide polymorphisms (SNPs) of microRNA (miRNA) sequences or binding sites (miRNA-SNPs) are associated with lung cancer risk and survival. The objective of this study was to systematically review genetic association studies about miRNA-SNPs in lung cancer. METHODS: Eligible genetic association studies were retrieved from databases of PubMed, EMBASE, China National Knowledge Infrastructure and SinoMed. Two investigators selected related studies and assessed methodological quality independently. Quantitative data synthesis was conducted for common SNPs of miRNA (miRNA-196a2 rs11614913, miRNA146a rs2910164, miRNA149 rs2292832, miRNA-605 rs2043556 and miRNA499 rs3746444). GRADE profiler was used to grade the quality of evidence for each miRNA-SNP. RESULTS: 15 eligible studies and 27 miRNA-SNPs were retrieved and 10 miRNA-SNPs were reported with a significant association with susceptibility to or survival of lung cancer. Methodological quality of eligible studies was adequate with an average score of 8.5. miRNA-196a2 rs11614913 polymorphism was associated with increased lung cancer risk (homozygote comparison, OR?=?1.299, 95% CI: 1.096-1.540; dominant model, OR?=?1.217, 95% CI: 1.041-1.421) and decreased survival. And according to GRADE profiler, quality of evidence was moderate for MYCL1 rs3134615, while quality of the other significant associations was low. CONCLUSIONS: Based on this first systematic review about miRNA-SNPs in lung cancer, quality of evidence was low for most genetic association studies. Polymorphisms of miRNA-196a2 rs11614913 and MYCL1 rs3134615 could be potential biomarkers of lung cancer.

SUBMITTER: Chen Z 

PROVIDER: S-EPMC3628762 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Polymorphisms of microRNA sequences or binding sites and lung cancer: a meta-analysis and systematic review.

Chen Zhiwei Z   Xu Ling L   Ye Xiangyun X   Shen Shengping S   Li Ziming Z   Niu Xiaomin X   Lu Shun S  

PloS one 20130416 4


<h4>Objective</h4>Functional single nucleotide polymorphisms (SNPs) of microRNA (miRNA) sequences or binding sites (miRNA-SNPs) are associated with lung cancer risk and survival. The objective of this study was to systematically review genetic association studies about miRNA-SNPs in lung cancer.<h4>Methods</h4>Eligible genetic association studies were retrieved from databases of PubMed, EMBASE, China National Knowledge Infrastructure and SinoMed. Two investigators selected related studies and as  ...[more]

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