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Updated: Dec 22, 2025

Visualization of IL-22-expressing Lymphocytes Using Reporter Mice
Published on: January 25, 2017
Interleukin-22 and intestinal homeostasis: Protective or destructive?
Mojtaba Shohan1,2, Razieh Dehghani3, Ali Khodadadi1
1Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Interleukin (IL)-22, a cytokine mainly secreted by Th22 cells, plays a dual role in gut homeostasis and inflammation. Emerging research highlights its involvement in various diseases and potential for treating intestinal disorders.
Area of Science:
- Immunology
- Gastroenterology
Background:
- Interleukin (IL)-22 is a cytokine from the IL-10 family with diverse immune functions.
- Primarily secreted by Th22 cells, IL-22 is also produced by other immune cells and affects various epithelial cells.
- IL-22 has a complex role in gut homeostasis, inflammation, and various pathologies.
Purpose of the Study:
- To review the current understanding of IL-22's role in gastrointestinal immunity.
- To explore the potential of IL-22 as a therapeutic target for intestinal disorders.
Main Methods:
- Literature review of recent investigations on IL-22 in gastrointestinal immunity.
Main Results:
- IL-22 is implicated in allergic diseases, infections, autoimmunity, and cancer.
- It influences gut immune responses, barrier integrity, and inflammation.
- IL-22 has demonstrated both protective and pathological roles in the gut.
Conclusions:
- IL-22 is a key mediator in gastrointestinal immunity.
- IL-22 holds promise for future therapeutic strategies for inflammatory bowel diseases and colon cancer.
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