BMDC	bone-marrow-derived cells
CAF	cancer-associated fibroblasts
DC	dendritic cells
DTC	disseminated tumor cells
CTL	cytotoxic T lymphocytes
CTC	circulating tumor cells
ECM	extracellular matrix
EVs	extracellular vesicles
FN	fibronectin
HPCs	hematopoietic progenitor cells
HSCs	hepatic stellate cells
HUVECs	human umbilical vein endothelial cells
LSECs	liver sinusoidal endothelial cells
KCs	Kupffer cells
KPC	LSL-KrasG12D/+;LSL-Trp53R172H/+;Pdx-1-Cre genetically engineered mouse model of PDAC with the genotype ([46])
M-Fbs	myeloid-derived fibroblasts
MDSCs	myeloid derived suppressor cells
MIF	macrophage migration inhibitory factor
MMP	matrix metalloproteinase
NKs	natural killer cells
PDAC	pancreatic ductal adenocarcinoma
PDECs	pancreatic ductal epithelial cells
PLGF	placental growth factor
PSCs	pancreatic stellate cells
SAA	serum amyloid A
SDF-1	stromal cell-derived factor 1 (also known as CXCL12)
TAMs	tumor-associated macrophages
TDSFs	tumor-derived secreted factors
TGF-β	transforming growth factor-β
TIMP-1	tissue inhibitor of metalloproteinases,
TME	tumor microenvironment
Treg	regulatory T cells
VEGF	vascular endothelial growth factor