NIH Scientists Discover Regulatory Cells That Protect Against Inflammatory Bowel Disease

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NIH researchers identified a regulatory pathway crucial for the immune defense against inflammatory bowel disease (IBD).
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Harmful mutations in the GPR15 gene are linked to severe, early-onset IBD, affecting the body's immune response.
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The study discovered intramucosal GPR15-guided regulatory CD8+ T lymphocytes, which are essential for colon health.
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Defective GPR15 variants lead to a lack of protective regulatory cells, causing inflammation due to macrophage accumulation.
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The findings suggest potential targeted therapies to restore GPR15 signaling and improve IBD treatment outcomes.

National Institutes Of Health

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