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Updated: Mar 31, 2026

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Published on: January 25, 2017
Interleukin 19 reduces inflammation in chemically induced experimental colitis
Yukiko Matsuo1, Yasu-Taka Azuma1, Mitsuru Kuwamura2
1Laboratory of Veterinary Pharmacology, Division of Veterinary Science, Osaka Prefecture University Graduate School of Life and Environmental Science, Izumisano, Osaka 598-8531, Japan.
Interleukin-19 (IL-19) deficiency worsened intestinal inflammation and impaired recovery in a mouse model of colitis. This highlights IL-19
Area of Science:
- Immunology
- Gastroenterology
- Cytokine Biology
Background:
- Inflammatory bowel disease (IBD) involves immune system dysregulation.
- Interleukin-19 (IL-19), part of the IL-10 family, acts as an anti-inflammatory cytokine.
Purpose of the Study:
- To investigate the role of IL-19 in T cell-mediated intestinal inflammation.
- To assess the impact of IL-19 deficiency on experimental colitis in mice.
Main Methods:
- Utilized the 2,4,6-trinitrobenzene sulfonic acid (TNBS) model to induce acute colitis in mice.
- Compared inflammatory responses between wild-type and IL-19-deficient mice.
- Measured cytokine and chemokine production.
Main Results:
- IL-19 deficiency exacerbated TNBS-induced colitis and delayed intestinal healing.
- Genetic ablation of IL-19 led to increased pro-inflammatory cytokines (IFN-γ, IL-12, IL-17, IL-22, IL-33) and chemokines (CXCL1, G-CSF, CCL5).
- IL-19 deficiency was associated with decreased IL-4 production.
Conclusions:
- IL-19 plays a protective role in mitigating intestinal inflammation.
- IL-19 acts as an anti-inflammatory cytokine in the context of colitis.
- Findings reveal the immunopathological significance of IL-19 in IBD models.
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