IL4 and colonic neoplasm: In addition, we observed a reduction in IL‐17A and IL‐4 levels but increased IFN‐γ RNAm levels in the colonic tumors of the Mgl1−/− mice (Supplementary figure 3); IL‐17A and IL‐4 are cytokines supporting colon tumor growth, whereas IFN‐γ has antitumorigenic functions.24