IL36G and colitis: Hematoxylin and eosin (HE) and Masson's trichrome staining of the colons showed less leukocyte infiltration, muscle fibers and collagen, and more intact epithelium in the colon from Il1f9−/− mice than Il1f9+/+ mice (Figure 1C,D), suggesting a proinflammatory role of IL‐36γ in DSS‐induced colitis.