INCB057643 changes the inflammatory microenvironment in the pancreas and liver of KPC mice. KPC mice were treated with INCB057643 5 times a week for 16 weeks, starting at 4 weeks of age. Blood, pancreas, liver, lung and spleen were collected. n = 10 mice/group. CD45+ immune cells, CD45+, CD11b+, Gr1+low cells (monocytes), CD45+, CD3+ (CD3 T cells), and CD45+, CD3+, CD4+ (CD4 T cells) were analyzed by flow cytometry in the pancreas (A) and liver (C). Flow cytometry results were confirmed by immunohistochemistry in both pancreas (B) and liver (D). Arrows on panel (D) indicate positive CD3 T cells. Scale bar 30 µm.