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ZFIN ID: ZDB-PUB-150430-1
Development of an Animal Model for Alcoholic Liver Disease in Zebrafish
Lin, J.N., Chang, L.L., Lai, C.H., Lin, K.J., Lin, M.F., Yang, C.H., Lin, H.H., Chen, Y.H.
Date: 2015
Source: Zebrafish   12(4): 271-80 (Journal)
Registered Authors:
Keywords: none
MeSH Terms:
  • Animals
  • Disease Models, Animal*
  • Fatty Liver, Alcoholic/etiology
  • Fatty Liver, Alcoholic/pathology
  • Fatty Liver, Alcoholic/physiopathology
  • Humans
  • Liver/pathology*
  • Liver/physiopathology
  • Liver Diseases, Alcoholic/etiology*
  • Liver Diseases, Alcoholic/pathology
  • Liver Diseases, Alcoholic/physiopathology
  • Male
  • Zebrafish*
PubMed: 25923904 Full text @ Zebrafish
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ABSTRACT
Alcoholic liver disease (ALD) continues to be a major cause of liver-related morbidity and mortality worldwide. To date, no zebrafish animal model has demonstrated the characteristic manifestations of ALD in the setting of chronic alcohol exposure. The aim of this study was to develop a zebrafish animal model for ALD. Male adult zebrafish were housed in a 1% (v/v) ethanol solution up to 3 months. A histopathological study showed the characteristic features of alcoholic liver steatosis and steatohepatitis in the early stages of alcohol exposure, including fat droplet accumulation, ballooning degeneration of the hepatocytes, and Mallory body formation. As the exposure time increased, collagen deposition in the extracellular matrix was observed by Sirius red staining and immunofluorescence staining. Finally, anaplastic hepatocytes with pleomorphic nuclei were arranged in trabecular patterns and formed nodules in the zebrafish liver. Over the time course of 1% ethanol exposure, upregulations of lipogenesis, fibrosis, and tumor-related genes were also revealed by semiquantitative and quantitative real-time reverse transcription-polymerase chain reaction. As these data reflect characteristic liver damage by alcohol in humans, this zebrafish animal model may serve as a powerful tool to study the pathogenesis and treatment of ALD and its related disorders in humans.
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