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Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA
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Association between Hepatitis B Virus X Gene Mutations and Clinical Status in Patients with Chronic Hepatitis B

Eun Young Cho1, Chang Soo Choi, Ji-Hyun Cho

  • 1Department of Internal Medicine, Wonkwang University Hospital, Wonkwang University College of Medicine, Iksan, Korea.

Gut and Liver
|April 5, 2011
PubMed

Insights

Specific mutations in the hepatitis B virus (HBV) X gene are linked to disease progression in patients with chronic HBV infection. These HBV X gene mutations correlate with clinical status, including cirrhosis and hepatocellular carcinoma (HCC).

Area of Science:

  • Hepatology
  • Virology
  • Molecular Biology

Background:

  • Hepatitis B virus (HBV) infection is a global health concern.
  • The HBV X gene plays a crucial role in viral replication and pathogenesis.
  • Limited data exists on the association between entire HBV X gene mutations and clinical outcomes.

Purpose of the Study:

  • To investigate the association between mutations in the complete HBV X gene and the clinical status of HBV genotype C infected patients.
  • To compare the prevalence of X gene mutations across different stages of chronic HBV infection: chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma (HCC).

Main Methods:

  • Direct sequencing was used to analyze HBV X genes from 194 patients.
  • The study population included patients with chronic hepatitis (n=60), liver cirrhosis (n=65), and HCC (n=69).
  • Sequencing results were compared among the three clinical groups.

Main Results:

  • Several HBV X gene mutations (G1386M, C1485T, C1653T, T1753V, A1762T, G1764A) showed significant associations with clinical status.
  • Mutations T1753V and A1762T/G1764A were more frequent in Hepatitis B e antigen (HBeAg)-negative patients.
  • Specific mutations (G1386M, C1653T, A1762T/G1764A) were more prevalent in cirrhosis and HCC patients compared to chronic hepatitis patients.
  • The T1753V mutation showed a significant increase in prevalence with disease progression from cirrhosis to HCC.

Conclusions:

  • Distinct patterns of HBV X gene mutations are associated with varying clinical statuses in chronic HBV infection.
  • These findings highlight the potential role of specific X gene mutations as biomarkers for HBV disease progression.
Abstract

Keywords:
CirrhosisHepatitis B virusHepatocellular carcinomaLiver diseaseX mutation

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