BMM	bone marrow-derived macrophage
CTSK	cathepsin K
CTR	calcitonin receptor
EDTA	ethylenediamine tetraacetic acid
ERK	extracellular signal-regulated kinase
FBS	fetal bovine serum
FITC	Fluorescein isothiocyanate
GAPDH	glyceraldehyde phosphate dehydrogenase
H&E	hematoxylin and eosin
IκBα	the inhibitor of NF-κB
JNK	c-Jun N-terminal kinase
MAPK	mitogen activated protein kinase
M-CSF	macrophage colony-stimulating factor
NFATc1	nuclear factor of activated T-cells cytoplasmic 1
NF-κB	nuclear factor-κB
PBS	phosphate buffered saline
PCR	polymerase chain reaction
PI	propidium iodide
RANKL	receptor activator of nuclear factor-κB ligand
TRAP	tartrate resistant acid phosphatase