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Meta-Analysis
. 2014 Jan 13:4:3648.
doi: 10.1038/srep03648.

MicroRNA sequence polymorphisms and the risk of different types of cancer

Affiliations
Meta-Analysis

MicroRNA sequence polymorphisms and the risk of different types of cancer

Ye Hu et al. Sci Rep. .

Abstract

MicroRNAs (miRNAs) participate in diverse biological pathways and may act as oncogenes or tumor suppressors. Single nucleotide polymorphisms (SNPs) in miRNAs (MirSNPs) might promote carcinogenesis by affecting miRNA function and/or maturation; however, the association between MirSNPs reported and cancer risk remain inconsistent. Here, we investigated the association between nine common MirSNPs and cancer risk using data from large scale case-control studies. Eight precursor-miRNA (pre-miRNA) SNPs (rs2043556/miR-605, rs3746444/miR-499a/b, rs4919510/miR-608, rs2910164/miR-146a, rs11614913/miR-196a2, rs895819/miR-27a, rs2292832/miR-149, rs6505162/miR-423) and one primary-miRNA (pri-miRNA) SNP (rs1834306/miR-100) were analyzed in 16399 cases and 21779 controls from seven published studies in eight common cancers. With a novel statistic, Cross phenotype meta-analysis (CPMA) of the association of MirSNPs with multiple phenotypes indicated rs2910164 C (P = 1.11E-03), rs2043556 C (P = 0.0165), rs6505162 C (P = 2.05E-03) and rs895819 (P = 0.0284) were associated with a significant overall risk of cancer. In conclusion, MirSNPs might affect an individual's susceptibility to various types of cancer.

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Conflict of interest statement

The authors declare no competing financial interests.

Figures

Figure 1
Figure 1. Meta-analysis of nine MirSNPs and their association with the overall risk of cancer.
(a) rs2292832; (b) rs2910164; (c) rs2043556; (d) rs4919510; (e) rs1834306; (f) rs1614913; (g) rs6505162; (h) rs895819; (i) rs3746444.
Figure 2
Figure 2. Begg's funnel plot with pseudo 95% confidence limits for publication bias of the MirSNPs in meta-analysis.
Begg's test offers no evidence of publication bias. (a) rs2292832 (P = 0.386); (b) rs2910164 (P = 0.536); (c) rs2043556 (P = 0.386); (d) rs4919510 (P = 1.000); (e) rs1834306 (P = 0.174); (f) rs11614913 (P = 0.536); (g) rs6505162 (P = 0.174); (h) rs895819 (P = 0.386); (i) rs3746444 (P = 1.000).

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