CXCL9 and autoimmune pancreatitis: Using an IFN-γ reporter mouse (Reinhardt et al., 2015) and intracellular staining as complementary methods, we found that AIP treatment elicited a substantial increase in the number of IFN-γ+ NK cells, macrophages, and T cells in tumors within 1 day, and induced CXCL9 and TNF-α expression in all three populations of effector cells (Figures 7C and 7D; Figures S7C and S7D).