Fig. 1.
Tumor microenvironment (TME) in pancreatic cancer. ADCC: Antibody-dependent cellular cytotoxicity; APC: Antigen-presenting cell; CAF: Cancer-associated fibroblast; CTL: Cytotoxic T lymphocyte; DC: Dendritic cell; DLL: Delta like canonical notch ligand; ECM: Extracellular matrix; GM-CSF: Granulocyte–macrophage colony-stimulating factor; HGF: Hepatocyte growth factor; IDO: Indoleamine 2,3-dioxygenase; IFNs-I: Type I interferons; IFN-γ: Interferon-gamma; IL-2: Interleukin 2; MDSC: Myeloid-derived suppressor cell; MMP: Matrix metalloproteinase; MQ: Macrophage; MSC: Mesenchymal stromal cell; NK: Natural killer; NO: Nitric oxide; PCSC: Pancreatic cancer stem cell; PDAC: Pancreatic ductal adenocarcinoma; PDGF: Platelet-derived growth factor; PSC: Pancreatic stellate cell; STING: Stimulator of interferon genes; TAM: Tumor-associated macrophage; TAN: Tumor-associated neutrophil; TGF-β: Transforming growth factor beta; Th1: Type 1 T helper; TNF-α: Tumor necrosis factor alpha; Treg: Regulatory T cell; VEGF: Vascular endothelial growth factor