IL-17A-mediated ERK1/2/p65 signaling pathway is associated with cell apoptosis after non-alcoholic steatohepatitis

IUBMB Life. 2019 Mar;71(3):302-309. doi: 10.1002/iub.1960. Epub 2018 Nov 27.

Abstract

Interleukin (IL)-17A is pro-inflammatory cytokine which has been identified as a noninvasive marker of the pathogenesis of non-alcoholic steatohepatitis (NASH). However, the underlying role of IL-17A in NASH progression remains unclear. This study was designed to investigate the biological function and molecular mechanism of IL-17A in the induction of NASH. The results showed that IL-17A was highly expressed in high-fat diet (HFD)-induced NASH mouse model. Intravenous injection of IL-17A exacerbated steatohepatitis process via promoting hepatocyte apoptosis. Furthermore, IL-17A-induced apoptosis was mediated by ERK1/2/p65 signaling pathway. In conclusion, we demonstrated that IL-17A-mediated ERK1/2/p65 signaling pathway was a promising target for the treatment of NASH. © 2018 IUBMB Life, 71(3):302-309, 2019.

Keywords: ERK1/2; IL-17A; NSAH; p65.

MeSH terms

  • Animals
  • Apoptosis / genetics*
  • Diet, High-Fat / adverse effects
  • Disease Models, Animal
  • Disease Progression
  • Gene Expression Regulation
  • Hepatocytes / metabolism
  • Hepatocytes / pathology
  • Interleukin-17 / administration & dosage
  • Interleukin-17 / blood
  • Interleukin-17 / genetics*
  • Liver / metabolism
  • Liver / pathology
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Mitogen-Activated Protein Kinase 1 / genetics*
  • Mitogen-Activated Protein Kinase 1 / metabolism
  • Mitogen-Activated Protein Kinase 3 / genetics*
  • Mitogen-Activated Protein Kinase 3 / metabolism
  • Non-alcoholic Fatty Liver Disease / etiology
  • Non-alcoholic Fatty Liver Disease / genetics*
  • Non-alcoholic Fatty Liver Disease / metabolism
  • Non-alcoholic Fatty Liver Disease / pathology
  • Signal Transduction
  • Transcription Factor RelA / genetics*
  • Transcription Factor RelA / metabolism

Substances

  • Il17a protein, mouse
  • Interleukin-17
  • Rela protein, mouse
  • Transcription Factor RelA
  • Mapk1 protein, mouse
  • Mitogen-Activated Protein Kinase 1
  • Mitogen-Activated Protein Kinase 3