Genetic variants in Ras/Raf/MEK/ERK pathway are associated with gastric cancer risk in Chinese Han population.

Archives of Toxicology
Xiaowei WangZhengdong Zhang

Abstract

The dysregulation of Ras/Raf/MEK/ERK pathway governs occurrence and progression of cancers. In previous studies, genome-wide association studies (GWAS) have identified multiple gene loci related to gastric cancer. However, a great many genetic loci have been missed due to multiple statistical comparisons of GWAS. In this study, Multi-marker Analysis of GenoMic Annotation (MAGMA) was applied to analyze genes in Ras/Raf/MEK/ERK pathway and their single nucleotide polymorphisms (SNPs) based on Chinese GWAS including 1625 gastric cancer cases and 2100 controls. The SNP effects on gastric cancer susceptibility were calculated on the basis of a logistic regression model. Expression quantitative trait loci (eQTL) analysis was performed based on the genotype-tissue expression (GTEx) project. We identified that three SNPs in MAP2K1, rs4287513, rs76906202 and rs11631448 were markedly associated with gastric cancer risk (rs4287513: OR = 1.30, 95% CI = 1.10-1.54, P = 1.92 × 10-3; rs76906202: OR = 0.87, 95% CI = 0.79-0.96, P = 3.72 × 10-3; rs11631448: OR = 1.21, 95% CI = 1.05-1.39, P = 6.74 × 10-3). All the loci were eQTLs for MAP2K1 in normal gastric samples. Moreover, the low expression of MAP2K1 was significantly associated with poor sur...Continue Reading

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Citations

Jan 6, 2021·Pharmacological Research : the Official Journal of the Italian Pharmacological Society·Li YuanXiang-Dong Cheng

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Software Mentioned

PLINK
RegulomeDB
Kaplan
SNPinfo Web Server
R
MAGMA
Kaplan Plotter
Meier Plotter
HaploReg

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