p53 and rb promoter methylation in hepatitis C virus-related chronic hepatitis and hepatocellular carcinoma

Author:

Aftab Ayma1,Afzal Samia1ORCID,Idrees Muhammad1ORCID,Shahid Ahmad Ali1

Affiliation:

1. Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan

Abstract

Aim: To identify methylation in p53 and rb during hepatitis C virus (HCV) infection in individuals in Pakistan. Materials & methods: Methylation-specific PCR was used on liver biopsies from hepatocellular carcinoma and chronic hepatitis C patients and on blood samples from healthy individuals. Real-time PCR was used to assess changes in the expression of p53 and rb in Huh-7 cells transfected with HCV-3a. Results: The p53 and rb promoters were methylated in hepatocellular carcinoma patients. The presence of HCV-3a- Core (p = 0.03), HCV-3a- NS-3 (p = 0.01) and HCV-3a- NS-5a (p = 0.02) downregulated p53 expression. Exposure to HCV-3a- Core (p = 0.04) downregulated rb expression. Conclusion: It can be hypothesized that HCV-induced epigenetic modifications may lead to the development of hepatic cancer that in turn inactivates p53 and rb.

Funder

Higher Education Commission, Pakistan

Publisher

Future Medicine Ltd

Subject

Virology

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