IR	Ionizing radiation
SASP	Senescent cell-associated secretory phenotype
SIPS	Stress-induced premature senescence
SA-β-gal	Senescence-associated-β-galactosidase
SNCs	Senescent cells
DSBs	DNA double-strand breaks
DDR	DNA damage response
ER	Endoplasmic reticulum
CaMKII	Ca2+/Calmodulin-Dependent Protein Kinase II
NFATc1	Nuclear factor of activated T-cells, cytoplasmic 1
ATF3	Activating transcription factor 3
CDKIs	Cyclin-dependent kinase inhibitors
BMSCs	Bone marrow-derived mesenchymal stem cells
BMMS	Bone marrow-derived macrophages
EdU	5-ethynyl-2′-deoxyuridine
PFA	Polyoxymethylene
ALP	Alkaline Phosphatase
TRITC	Tetramethylrhodamine isothiocyanate
M-CSF	Macrophage colony-stimulating factor
RANKL	Receptor activator of NF-kB ligand
CFU	Colony-forming unit
TRAP	Tartrate-resistant acid phosphatase
Oscar	Osteoclast-associated receptor
OC-stamp	Osteoclast stimulatory transmembrane protein
BSA	Bovine serum albumin
SOST	Sclerostin
ROS	Reactive oxygen species
VGCC	Voltage-gated calcium channel
PCNA	Proliferating cell nuclear antigen
HUVECs	Human umbilical vein endothelial cells