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Related Concept Videos

Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
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Cytomegalovirus Disease

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Related Experiment Video

Updated: Jun 28, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
13:04

A Protocol for Analyzing Hepatitis C Virus Replication

Published on: June 26, 2014

Genotype 1a HCV (H77S) infection system.

Minkyung Yi1, Stanley M Lemon

  • 1Center for Hepatitis Research, Institute for Human Infections and the Department of Microbiology & Immunology, University of Texas Galveston, TX, USA.

Methods in Molecular Biology (Clifton, N.J.)
|November 15, 2008
PubMed
Summary

Developing a cell culture system for Hepatitis C Virus (HCV) genotype 1a, using the H77S strain, is crucial for discovering new antiviral therapies. This advancement aids in studying genotype 1-specific interventions for chronic liver diseases.

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Published on: June 26, 2020

Area of Science:

  • Virology
  • Hepatology

Background:

  • Hepatitis C Virus (HCV) causes chronic liver diseases, including hepatocellular carcinoma.
  • Current therapies (interferon-alpha and ribavirin) show limited success, particularly for genotype 1.
  • HCV propagation in cell culture has been a major obstacle for antiviral drug discovery.

Purpose of the Study:

  • To develop a tractable cell culture system for genotype 1a HCV (H77S virus).
  • To facilitate the assessment of genotype 1-specific antiviral interventions.
  • To overcome limitations in studying highly heterogeneous HCV strains.

Main Methods:

  • Utilized genotype 1a H77S viral RNA with five cell culture-adaptive mutations.
  • Transfected Huh-7 human hepatoma cells with H77S RNA.
  • Assessed viral replication and production of cell culture-infectious virus.

Main Results:

  • H77S RNA demonstrated robust replication in Huh-7 cells.
  • Moderate titers of cell culture-infectious virus were produced.
  • The system provides a viable model for genotype 1a HCV infection.

Conclusions:

  • The H77S cell culture system represents a significant advancement for HCV genotype 1a research.
  • This system enables better evaluation of genotype 1-specific antiviral strategies.
  • Facilitates the development of improved therapies for HCV infection.