Mouse Models of Liver Fibrosis

Area of Science:

• Hepatology and immunology
• Translational research

Background:

• Liver fibrosis involves excessive extracellular matrix accumulation due to chronic liver injury and inflammation.
• Key etiologies include nonalcoholic fatty liver disease (NAFLD), viral hepatitis, and alcohol-related liver disease.
• Fibrosis can progress to cirrhosis, liver failure, and hepatocellular carcinoma, driven by activated hepatic stellate cells.

Purpose of the Study:

• To summarize commonly used murine models for studying liver fibrosis.
• To highlight models of toxic, biliary, and metabolically induced liver fibrosis.
• To provide a foundation for understanding and targeting fibrosis mechanisms.

Main Methods:

• Review of established mouse models for inducing liver fibrosis.
• Focus on models using carbon tetrachloride (CCl4), thioacetamide (TAA), bile duct ligation (BDL), 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC), and high-fat diets.
• Analysis of how these models recapitulate key aspects of human liver fibrosis.

Main Results:

• Various chemical and surgical methods effectively induce liver fibrosis in mice.
• These models replicate distinct aspects of fibrosis etiology and progression.
• Murine models are crucial for investigating hepatic stellate cell activation and fibrogenesis.

Conclusions:

• Mouse models are essential tools for dissecting liver fibrosis pathogenesis.
• Understanding these models facilitates the development of targeted antifibrotic therapies.
• Continued research using these models is vital for combating liver disease progression.