Journal
CELLS
Volume 10, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/cells10010089
Keywords
osteoclasts; lipids; metabolism; fatty acids; cholesterol; statin
Categories
Funding
- National Institutes of Health [5R01 AR069562, 5R01 AR073156]
- National Research Foundation of Korea [NRF-2020R1A6A3A03037133]
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Bone is a dynamic tissue constantly being remodeled by bone cells, with metabolic reprogramming playing a critical role in activating bone cells and skeletal metabolism. Lipid metabolism in bone cells has long been recognized for its importance, with recent studies showing the link between bone loss and lipid-altering conditions. Targeting lipid metabolism with statins has been found to improve bone density and quality in metabolic bone diseases.
Bone is a dynamic tissue and is constantly being remodeled by bone cells. Metabolic reprogramming plays a critical role in the activation of these bone cells and skeletal metabolism, which fulfills the energy demand for bone remodeling. Among various metabolic pathways, the importance of lipid metabolism in bone cells has long been appreciated. More recent studies also establish the link between bone loss and lipid-altering conditions-such as atherosclerotic vascular disease, hyperlipidemia, and obesity-and uncover the detrimental effect of fat accumulation on skeletal homeostasis and increased risk of fracture. Targeting lipid metabolism with statin, a lipid-lowering drug, has been shown to improve bone density and quality in metabolic bone diseases. However, the molecular mechanisms of lipid-mediated regulation in osteoclasts are not completely understood. Thus, a better understanding of lipid metabolism in osteoclasts can be used to harness bone cell activity to treat pathological bone disorders. This review summarizes the recent developments of the contribution of lipid metabolism to the function and phenotype of osteoclasts.
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