ASC	Adult/postnatal stem cell
BM-MSC	Bone Marrow-MSC
ESC	Embryonic Stem Cell
HSC	Hemopoietic stem cell
IL	Interleukin
LPS	Lipopolysaccharide
MMP	Matrix proteinase
MSC	Mesenchymal stem cell
OA	Osteoarthritis
NSAID	Non-steroidal anti-inflammatory drugs
PBSC	Peripheral blood stem cell
PGE	Prostaglandin E
PSC	Perivascular stem cell
TGF	Transforming growth factor
TLR	Toll-like receptor
TNF	Tumor necrosis factor