1α,25(OH)2D3	1α,25-dihydroxy-vitamin D3
ABT	abatacept
ACPA	anticitrullinated protein antibody
ADA	adalimumab
AtoM	arthritis-associated osteoclastogenic macrophages
BAR	baricitinib
bDMARDs	biological disease-modifying antirheumatic drugs
CIA	collagen-induced arthritis
csDMARDs	conventional synthetic disease-modifying antirheumatic drugs
CTLA-4	cytotoxic T-lymphocyte-associated protein-4
CZP	certolizumab pegol
DC-OC	dendritic cell-derived osteoclast
DKK1	dickkopf1
ETN	etanercept
FIL	filgotinib
FLS	fibroblast-like synoviocyte
Fox	forkhead box protein
IFX	infliximab
M-CSF	macrophage colony-stimulating factor
Mo-OC	monocyte-derived osteoclast
mTORC1	mammalian target of rapamycin complex 1
MTX	methotrexate
NFATc1	nuclear factor of activated T cell c1
OPG	osteoprotegerin
PEF	peficitinib
RA	rheumatoid arthritis
RANK	receptor activator of nuclear factor-κB
RANKL	receptor activator of nuclear factor-κB ligand
Runx	runt-related transcription factor
S1P	sphingosine-1-phosphate
SAR	sarilumab
sFRP	secreted Frizzled-related protein
TCZ	tocilizumab
TGF-b	transforming growth factor-beta
TNF-a	tumor necrosis factor-alpha
TOF	tofacitinib
tsDMARDs	targeted synthetic disease-modifying antirheumatic drugs
UPA	upadacitinib
Wnt	wingless-related MMTV integration site