Associations Between Three Common MicroRNA Polymorphisms and Hepatocellular Carcinoma Risk in Chinese

  • Hao, Yu-Xia (Department of Infection, The First of Hospital of Shanxi Medical University) ;
  • Wang, Jun-Ping (Shanxi Provincial People's Hospital) ;
  • Zhao, Long-Feng (Department of Infection, The First of Hospital of Shanxi Medical University)
  • Published : 2013.11.30


Aim: Associations between polymorphisms in miR-146aG>C, miR-196a2C>T and miR-499A>G and risk of HCC, and interaction with HBV infection in a Chinese population, were the target of the present research. Methods: The duplex polymerase-chain-reaction with confronting-two-pair primers (PCR-RFLP) was performed to determine the genotypes of the miR-146aG>C, miR-196a2C>T and miR-499A>G genotypes. Associations of polymorphisms with the risk of HCC were estimated by conditional logistic regression analysis. Results: Drinking, family history of cancer, HBsAg and HCV were risk factors for HCC. Multivariate regression analyses showed that subjects carrying the miR-196a2 CC genotype had significantly increased risk of HCC, with an adjusted OR (95% CI) of 2.18 (1.23-3.80). In addition, cases carrying the miR-196a2 C allele had a 1.64-fold increase in the risk for HCC (95%CI=1.03-2.49). The miR-196a2 CT and TT genotypes greatly significantly increased the risk of HCC in subjects with HBV infection, with adjusted ORs (95% CI) of 2.02 (1.12-3.68) and 2.69 (1.28-5.71), respectively. Conclusion: Our results demonstrate that miR-196a2 CC genotype and C allele have an important role in HCC risk in Chinese, especially in patients with HBV infection.


MicroRNA;polymorphisms;hepatocellular carcinoma;HBV;risk


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