Journal
ADIPOCYTE
Volume 6, Issue 3, Pages 250-258Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/21623945.2017.1356505
Keywords
bone; fatty acids; lipolysis; lipophagy; marrow adipocytes
Categories
Funding
- NIH [NIDDK DK092759-06]
- NIAMS [AR 066120-0, AR068095]
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Bone formation is an osteoblast-specific process characterized by high energy demands due to the secretion of matrix proteins and mineralization vesicles. While glucose has been reported as the principle fuel source for osteoblasts, recent evidence supports the tenet that osteoblasts can utilize fatty acids as well. Although the ability to accumulate lipid droplets has been demonstrated in many cell types, there has been little evidence that osteoblasts possess this characteristic. The current study provides evidence that osteoblastogenesis is associated with lipid droplet accumulation capable of supplying energy substrates (fatty acids) required for the differentiation process. Understanding the role of fatty acids in metabolic programming of the osteoblast may lead to novel approaches to increase bone formation and ultimately bone mass.
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