Cutting Edge: IFN-γ Is a Negative Regulator of IL-23 in Murine Macrophages and Experimental Colitis

Abstract excerpt

IL-23 regulation is a central event in the pathogenesis of the inflammatory bowel diseases. We demonstrate that IFN-gamma has anti-inflammatory properties in the initiation phase of IL-23-mediated experimental colitis. IFN-gamma attenuates LPS-mediated IL-23 expression in murine macrophages. Mechanistically, IFN-gamma inhibits Il23a promoter activation through altering NF-kappaB binding and histone modification....

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