ACTB	β-actin
Acp5	acid phosphatase 5, tartrate resistant
AxV	Annexinv-FITC
CD	Cluster of differentiation
cdh11	Cadherin 11
d	day
ELISA	Enzyme linked immunosorbent assay
FLS	Fibroblast-like synoviocytes
GAPDH	Glyceraldehyde-3-phosphate dehydrogenase
Gy	Gray
ICAM1	Intercellular adhesion molecule 1
IL	Interleukin
iNOS	Inducible nitric oxide synthase
LD-RT	Low dose-radiotherapy
M-CSF	Macrophage-colony stimulating factor
MMP	Matrixmetalloproteinase
NO	Nitric oxide
OA	Osteoarthritis
OC	Osteoclast
OPG	Osteoprotegerin
OSCAR	osteoclast-associated receptor
PBMC	Peripheral blood mononuclear cells
PI	Propidiumiodide
RA	Rheumatoid arthritis
RANK-L	Receptor activator of nuklear factor κ B ligand
RPS18	Ribosomal protein 18
RT	Radiation therapy
TNF-α	Tumornecrosis factor-α
Traf-6	Tumor necrosis factor associated receptor-6
TRAP	tartrate-resistant acid phosphatase
VCAM1	Vascular adhesion molecule 1