ADAMTS4	ADAM metallopeptidase with thrombospondin type 1 motif 4
ADAMTS5	ADAM metallopeptidase with thrombospondin type 1 motif 5
AP-1	Activator protein 1
BDNF	Brain derived neurotrophic factor
BMPs	Bone morphogenic proteins
CALCRL	Calcitonin gene related peptide receptor
CD	Chondrodystrophic
Col10a1	Collagen10a1
CTGF/CCN2	Connective tissue growth factor
DDD	Degenerative disc disease
GAG	Glycosaminoglycans
iTRAQ	Isobaric tagging for relative and absolute quantification
IVD	Intervertebral disc
MMP-13	Matrix metalloproteinase-13
NCCM	Notochordal cell conditioned medium
NCD	Non-chondrodystrophic
NCM	Notochordal cell matrix
NFκB	Nuclear factor kappa B
NP	Nucleus pulposus
Shh	Sonic hedgehog
SLRPs	Small leucine rich proteoglycans
TGF-β1	Transforming growth factor beta 1
TGF-βr1	Tgf-β receptor 1
TGF-βr2	TGF-β receptor 2
TrkA	Nerve growth factor receptor
TrkB	BDNF receptor