ADM	acinar-to-ductal metaplasia
CAFs	cancer-associated fibroblasts
CSCs	cancer stem cells
CSCN	cancer stem cell niche
CTCs	circulating tumor cells
ECM	extracellular matrix
E/M	epithelial/mesenchymal
EZH2	enhancer of zeste homolog 2
EMT	epithelial-mesenchymal transition
MET	mesenchymal-epithelial transition
MSC	mesenchymal stroma/stem-like cells
PDAC	pancreatic ductal adenocarcinoma
PHSP	post-hybrid selection process
PRC2	polycomb repressor complex 2
TAMs	tumor-associated macrophages
TFs	transcription factors
TICs	tumor-initiating cells
TME	tumor microenvironment
TNF	tumor necrosis factor
Zeb1/2	zinc finger E-box-binding 1/2