ALDH1	Aldehyde dehydrogenase 1
AMPK	AMP-activated protein kinase (AMPK)
CDK4/6i	CDK4/6 inhibitors
ECAR	Extracellular acidification rate
ELISA	Enzyme-linked immunosorbent assay
EMT	Epithelial–mesenchymal transition
ER+	Estrogen receptor-positive
FBS	Fetal bovine serum
FCCP	Carbonyl cyanide-p-trifluoromethoxyphenylhydrazone
GDF-15	Growth/differentiation factor 15
H&E	Hematoxylin and eosin
HMGB1	High mobility group box 1 protein
IGFBP-2	Insulin like growth factor binding protein 2
IL-1α	Interleukin-1alpha
IL-6	Interleukin-6
IL-8	Interleukin-8
MEM	Minimum Essential Medium
MiDAS	Mitochondrial dysfunction associated senescence
NF-κB	Nuclear factor kappa-light-chain-enhancer of activated B
OCR	Oxygen consumption rate
OXPHOS	Oxidative phosphorylation
PAI-1	Plasminogen activator inhibitor-1
PDGF-AA	Platelet-derived growth factor AA
RANTES	Regulated upon activation, normal T-cell expressed, and secreted
SA-β-Gal	Senescence-associated β-galactosidase
SASP	Senescence-associated secretory phenotype
SDS-PAGE	Sodium dodecyl sulfate-polyacrylamide gel electrophoresis
TIS	Therapy-induced senescence
TMRE	Tetramethylrhodamine ethyl ester
VEGF	Vascular endothelial growth factor
2PR	Palbociclib-resistant LCC2 subline
9PR	Palbociclib-resistant LCC9 subline
TPR	Palbociclib-resistant T47D subline
2AR	Abemaciclib-resistant LCC2 subline
9AR	Abemaciclib-resistant LCC9 subline
TAR	Abemaciclib-resistant T47D subline