fig1
Figure 1. The interaction between pancreatic cancer cells, stroma cells, and immune system. MHC: major histocompatibility complex; PD-L1: programmed death-ligand 1; CTLA4: cytotoxic T-lymphocyte-associated protein 4; CXCL12: C-X-C motif chemokine 12; IL-6: Interleukin 6; GM-CSF: granulocyte-macrophage colony-stimulating factor