A missense variant in EZH2 is associated with colorectal cancer risk in a Chinese population

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Abstract

Colorectal cancer (CRC) ranks the fifth leading cause of cancer death in China. EZH2 is a member of Polycomb-group (PcG) family and associated with transcriptional repression and cancer development. In this study, we report the association between a missense variant in EZH2 and risk of CRC. Through a systematic selection of variants in EZH2, we identified rs2302427 in the exon region of EZH2 and genotyped this variant in 852 CRC patients and 1,303 healthy controls using Taqman genotyping assay. The association between this variant and CRC risk was calculated using logistic regression with adjustment of sex, age, smoking status and drinking status. The result showed that rs2302427 was significantly associated with CRC susceptibility under an additive model (P=0.0068). Compared with CC genotype carriers, CG genotype and GG genotype carriers were associated with risk of CRC with odds ratio being 0.78 (95% CI: 0.63-0.96, P=0.0198) and 0.54 (95% CI: 0.24-1.18, P=0.1224), respectively. When stratified by sex, age, smoking status or drinking status, significant associations were observed only in younger individuals (OR=0.67, 95% CI: 0.50-0.89, P=0.0067) or smokers (OR=0.65, 95% CI: 0.48-0.88, P=0.0051). This study provides new insights into the personalized prevention of colorectal cancer.

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Li, H., Chang, C., Shang, Y., Qiang, L., Zhang, B., Bu, B., … Yu, J. (2017). A missense variant in EZH2 is associated with colorectal cancer risk in a Chinese population. Oncotarget, 8(55), 94738–94742. https://doi.org/10.18632/oncotarget.21888

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