A common genetic variation in the promoter of miR-107 is associated with gastric adenocarcinoma susceptibility and survival

Mutation Research
Shizhi WangMeilin Wang

Abstract

Global miRNA expression profile has been widely used to characterize human cancers. It is well established that genetic variants in miRNAs can modulate miRNA biogenesis and disease risk. Genome-wide miRNA microarray was employed for assessment of miRNA expression profile of gastric adenocarcinoma (GAC). The variants of significantly dysregulated miRNA were genotyped in test (715 cases and 804 controls) and validation (940 cases and 1050 controls) subject sets. MiRNA microarray revealed that 12 miRNAs including miR-107 significantly dysregulated in GAC tissues. The sequencing of the promoter of miR-107 identified 3 SNPs (rs11185777, rs78591545, and rs2296616) with minor allele frequency (MAF)>5%. Analyzing their association with GAC risk and prognosis revealed that the C allele of rs2296616 (T>C) was significantly associated with the decreased risk of GAC among the test, validation and combined sets (TC/CC vs. TT, adjusted OR=0.39, 95% CI=0.31-0.49 for the combined set). However, the C allele was related to an unfavorable prognosis of Cardia GAC (CGAC) (adjusted HR=1.49, 95% CI=1.01-2.20). In vivo evidence showed that the individuals with the rs2296616C allele had lower miR-107 expression compared with the homozygous T allele ca...Continue Reading

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Citations

Nov 6, 2018·Biomarkers : Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals·Jovana StojanovicStefania Boccia
Jan 9, 2019·Frontiers in Oncology·Han-Xi DingQian Xu
Apr 16, 2016·International Journal of Oncology·David SmidMartin Pesta
Apr 25, 2018·Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology·Weizhi WangZekuan Xu

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