ArticleInflammatory bowel diseases2025
MK2 Inhibition in CD4+ T Cells Protects Against IFNγ and IL-17A, Chronic Inflammation, and Fibrosis in Inflammatory Bowel Disease Models.
Article in Inflammatory bowel diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Dietary baicalin supplementation enhances growth performance in fattening Hu sheep via dual modulation of immunity and gastrointestinal microbiome-metabolic crosstalk.Journal of animal science and biotechnology · 2026Article
- From inflammatory initiation to fibrotic remodeling: mechanisms and precision therapeutic strategies in otorhinolaryngologic involvement of IgG4-related disease.Frontiers in medicine · 2026Review
- Article
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Authors and funding
7 authors.
Funding
Abstract
backgroundCD4+ T cells contribute to chronic inflammation and fibrosis in inflammatory bowel disease (IBD), but the cellular mechanisms remain elusive. We have found that the mitogen-activated protein kinase 2 (MK2) pathway plays a major role in inflammation and overall pathology in IBD. Thus, here, we examined the role of MK2 in regulating CD4+ T cell responses in IBD models.
methodsInterleukin-10 (IL-10) knockout (KO) mice treated with MK2 inhibitors (MK2i) and CD4-specific MK2 knockdown mice treated with chronic dextran sodium sulfate (DSS) treatments were used to examine inflammation and fibrosis by multiplex array, gene expression, flow cytometry, and histology. Human tissues were treated with MK2i to examine Th1 and Th17 markers.
resultsIL-10 KO mice treated with MK2i therapeutically showed significantly reduced interferon gamma (IFNγ) and interleukin-17A (IL-17A) and a significantly reduced number of IFNγ+ and IL-17A+ producing CD4+ T cells by flow cytometry. To investigate the direct role of MK2 in CD4+ T cells during IBD, we utilized CD4-specific MK2 knockdown mice in chronic DSS colitis. A decrease in colonic inflammation, IFNγ and IL-17,pro-fibrotic genes, and extracellular matrix deposition was observed in mice with MK2 knockdown in CD4+ T cells compared to control mice. Additionally, IL-17A and IFNγ directly regulated the expression of fibrosis genes in colon tissues.
conclusionsThe MK2 pathway regulates inflammatory CD4+ T cells and fibrosis in IBD models and is a potential therapeutic target.
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