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[Clinical implications of HCV quasispecies heterogeneity in patients with hepatitis C]

X Tang1, K Qian, J Y Lau

  • 1Institute of Infectious Diseases, Guangzhou 8th People's Hospital, Guangzhou 510060, China.

Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi = Zhonghua Shiyan He Linchuang Bingduxue Zazhi = Chinese Journal of Experimental and Clinical Virology
|July 5, 2001
PubMed

Insights

Hepatitis C virus (HCV) quasispecies heterogeneity increases with disease progression and viremia. This viral diversity is influenced by infection duration, genotype, and transmission route, impacting HCV persistence and disease advancement.

Area of Science:

  • Virology
  • Hepatology
  • Molecular Biology

Context:

  • Hepatitis C virus (HCV) infection is a major global health concern.
  • Viral quasispecies, defined as a collection of different but related viral genomes within an infected host, are known to influence viral pathogenesis.
  • Understanding HCV quasispecies heterogeneity is crucial for managing chronic hepatitis C.

Purpose:

  • To investigate the heterogeneity of hepatitis C virus (HCV) quasispecies.
  • To determine the clinical significance of HCV quasispecies heterogeneity in patients with hepatitis C.
  • To assess the relationship between HCV quasispecies diversity and clinical outcomes.

Summary:

  • Single-stranded conformational polymorphism (SSCP) analysis of the HCV E2 hypervariable region 1 (HVR1) was used to detect quasispecies in 76 patients.
  • Increased quasispecies heterogeneity was observed in chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma compared to acute hepatitis.
  • Quasispecies diversity correlated significantly with serum HCV RNA levels, infection duration, HCV genotype, and transmission route (blood transfusion, IV drug use).

Impact:

  • Single-stranded conformational polymorphism (SSCP) is a validated, efficient method for analyzing HCV quasispecies heterogeneity.
  • HCV quasispecies heterogeneity plays a critical role in persistent HCV infection and disease progression.
  • Viral factors like duration, genotype, and viremia are key determinants of HCV quasispecies evolution.
Abstract

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