Animal Models of Alcoholic Liver Disease: Pathogenesis and Clinical Relevance

Gene Expr. 2017 Jul 7;17(3):173-186. doi: 10.3727/105221617X695519. Epub 2017 Apr 14.

Abstract

Alcoholic liver disease (ALD), a leading cause of chronic liver injury worldwide, comprises a range of disorders including simple steatosis, steatohepatitis, cirrhosis, and hepatocellular carcinoma. Over the last five decades, many animal models for the study of ALD pathogenesis have been developed. Recently, a chronic-plus-binge ethanol feeding model was reported. This model induces significant steatosis, hepatic neutrophil infiltration, and liver injury. A clinically relevant model of high-fat diet feeding plus binge ethanol was also developed, which highlights the risk of excessive binge drinking in obese/overweight individuals. All of these models recapitulate some features of the different stages of ALD and have been widely used by many investigators to study the pathogenesis of ALD and to test for therapeutic drugs/components. However, these models are somewhat variable, depending on mouse genetic background, ethanol dose, and animal facility environment. This review focuses on these models and discusses these variations and some methods to improve the feeding protocol. The pathogenesis, clinical relevance, and translational studies of these models are also discussed.

Publication types

  • Review

MeSH terms

  • Alcohol Drinking
  • Alcoholism / complications
  • Alcoholism / physiopathology*
  • Animals
  • Binge Drinking
  • Diet, High-Fat
  • Disease Models, Animal*
  • Female
  • Humans
  • Inflammation
  • Kupffer Cells / cytology
  • Liver Diseases, Alcoholic / genetics*
  • Liver Diseases, Alcoholic / physiopathology*
  • Macrophages / cytology
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Natural Killer T-Cells / cytology
  • Neutrophils / cytology
  • Obesity / complications
  • Overweight / complications
  • Proteins / metabolism
  • Sirtuin 1 / metabolism

Substances

  • Proteins
  • fat-specific protein 27, mouse
  • Sirt1 protein, mouse
  • Sirtuin 1