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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...
Cirrhosis II: Pathophysiology01:24

Cirrhosis II: Pathophysiology

Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...
Mutagenicity and Carcinogenicity01:25

Mutagenicity and Carcinogenicity

Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
Cirrhosis I: Introduction01:23

Cirrhosis I: Introduction

Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...
Mechanisms of Retrovirus-induced Cancers01:51

Mechanisms of Retrovirus-induced Cancers

Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...

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Related Experiment Video

Updated: Jun 22, 2026

An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis
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An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis

Published on: September 12, 2019

Hepatitis C virus-induced hepatocarcinogenesis.

Birke Bartosch1, Robert Thimme, Hubert E Blum

  • 1INSERM, U871, 151 Cours Albert Thomas, 69003 Lyon, France.

Journal of Hepatology
|June 24, 2009
PubMed
Summary

Hepatitis C virus (HCV) is linked to liver cancer (HCC), but its direct oncogenic mechanism remains unclear. More research is needed to confirm HCV

Area of Science:

  • Hepatology
  • Virology
  • Oncology

Background:

  • Hepatitis C virus (HCV) is a major cause of hepatocellular carcinoma (HCC).
  • Chronic inflammation and liver regeneration are suspected contributors to HCC development in HCV infection.
  • The direct oncogenic role of HCV proteins in liver cancer is not fully understood.

Purpose of the Study:

  • To investigate the direct mechanisms by which Hepatitis C virus contributes to liver cancer.
  • To clarify the role of HCV proteins in hepatocellular carcinoma development.
  • To address the limitations of current models and patient data in understanding HCV oncogenesis.

Main Methods:

  • Review of in vitro studies on HCV and cellular functions.
  • Analysis of limitations in artificial models for studying HCV-induced transformation.

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A Protocol for Analyzing Hepatitis C Virus Replication

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Last Updated: Jun 22, 2026

An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis
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An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis

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The CYP2D6 Animal Model: How to Induce Autoimmune Hepatitis in Mice
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The CYP2D6 Animal Model: How to Induce Autoimmune Hepatitis in Mice

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  • Discussion of challenges in identifying HCV proteins and infected cells in patients.

    • Main Results:

    • In vitro studies suggest HCV may disrupt cell differentiation and growth.
    • Current models are artificial, limiting confirmation of direct oncogenic mechanisms.
    • Difficulty in detecting HCV proteins and infected cells in patients hinders understanding.

    Conclusions:

    • There is limited experimental evidence for a direct oncogenic role of HCV.
    • Further studies using more relevant models are required.
    • Clarifying HCV's direct contribution to liver cancer necessitates more research.