BMT	bone marrow transplantation
CS/IC	cancer stem/initiating cell
EMT	epithelial-to-mesenchymal transition
HGT/LGT	horizontal gene transfer/lateral gene transfer
HST	heterokaryon-to-synkaryon transition
MSC	mesenchymal stroma-/stem-like cells
PHPP	pre-hybrid preparation process
PHSP	post-hybrid selection process
PR	ploidy reductions
PGCCs	polyploid giant cancer cells
TNF-α	tumor necrosis factor-α