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Visualization of IL-22-expressing Lymphocytes Using Reporter Mice
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Visualization of IL-22-expressing Lymphocytes Using Reporter Mice

Published on: January 25, 2017

Biology of interleukin-22

Kerstin Wolk1, Ellen Witte, Katrin Witte

  • 1University Hospital Charité, Berlin, Germany. kerstin.wolk@charite.de

Seminars in Immunopathology
|February 4, 2010
PubMed

Insights

Interleukin-22 (IL-22) is a cytokine that primarily acts on epithelial cells, enhancing antimicrobial defense and tissue repair. It plays a key role in inflammation, immunity, and disease pathogenesis.

Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • Interleukin-22 (IL-22) is a cytokine belonging to the IL-10 family.
  • It is produced by various immune cells, including T helper (Th)22, Th1, Th17 cells, and others.
  • IL-22 signaling involves a receptor complex (IL-22R1/IL-10R2) and JAK-STAT pathways.

Purpose of the Study:

  • To provide a comprehensive overview of IL-22.
  • To detail its gene, protein structure, cellular sources, receptors, and target cells.
  • To elucidate its biological effects and roles in disease.

Main Methods:

  • Literature review and synthesis of existing research on IL-22.
  • Analysis of IL-22's molecular mechanisms and cellular interactions.
  • Examination of IL-22's involvement in various pathological conditions.

Main Results:

  • IL-22 primarily targets epithelial cells and hepatocytes, not mediating immune cell communication.
  • It promotes antimicrobial defense, tissue regeneration, and protection against damage.
  • IL-22 induces acute phase reactants and certain chemokines.

Conclusions:

  • IL-22 is a crucial cytokine for epithelial barrier integrity and host defense.
  • Its dysregulation is implicated in chronic inflammatory diseases, tumor progression, and infections.
  • Understanding IL-22's multifaceted roles is vital for therapeutic strategies.

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