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ORIGINAL ARTICLEAssociation between EZH2 Genetic Variants and Hepatocellular Carcinoma in a Chinese Han Population by Siyao Li, Shilong Sun, Shilong Yu, Zhuo Dong, Kuo Jiang, Linlin Xiang, Haiying Li

Background: Hepatocellular carcinoma (HCC) is one of the most common malignancies worldwide. Studies have shown that EZH2, as the member of the Polycomb groups (PcGs) family, plays an important biological role in the occurrence and development of HCC. The association between the genetic variants of EZH2 and HCC is not yet fully established.
Methods: In this study, we used 175 patients with HCC and 209 healthy volunteers’ blood samples of Chinese Han population to further analyze the relationship between EZH2 variants and HCC susceptibility.
Results: The results showed significant differences in distribution of alleles rs2302427 and rs3757441 between patients and the controls (p < 0.05). The three SNPs of EZH2 investigated show significant association with the elevated risk of HCC (p < 0.05) in addition to the overdominant model of rs3757441 and recessive model of rs41277434 (p > 0.05). The haplotype analysis of the three EZH2 SNPs revealed that the CCA and GTA haplotypes were associated with a higher risk of HCC (p < 0.05).
Conclusions: The results of these experiments indicated that the presence of EZH2 variants was significantly associated with HCC, and these variants could be useful genetic markers for predicting susceptibility to HCC in a Chinese Han population.

DOI: 10.7754/Clin.Lab.2017.170620