ACI	Autologous chondrocyte implantation
bFGF	Basic fibroblast growth factor
COL1A1	Collagen type 1 alpha 1
COL2A1	Collagen type 2 alpha 1
G-CSF	Granulocyte colony-stimulating factor
GAPDH	Glyceraldehyde 3-phosphate dehydrogenase
HPS	Hypoxia Preconditioned Serum
IGF-1	Insulin-like growth factor-1
IL-1	Interleukin-1
MMP-13	Matrix metalloproteinase-13
PBC	Peripheral blood cells
PBS	Phosphate-buffered saline
PDGF-BB	Platelet-derived growth factor-beta polypeptide
PRP	Platelet-rich plasma
SOX9	Sex-determining region Y-box 9
RT-qPCR	Real-time quantitative reverse transcription-polymerase chain reaction
TGF-beta1	Transforming growth factor-beta 1
TNF-alpha	Tumour necrosis factor-alpha