期刊
BIOMOLECULES
卷 11, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/biom11071016
关键词
LPL; cardiac metabolism; fasting; diabetes; cardiomyopathy
资金
- Canadian Institutes of Health Research [CIHR PJT-169212]
- Heart and Stroke Foundation of Canada [G-19-0026493]
This article discusses the importance of lipoprotein lipase (LPL) in the heart's use of fatty acids, highlighting its role in ATP generation and regulation by physiological and pathological states.
Ninety percent of plasma fatty acids (FAs) are contained within lipoprotein-triglyceride, and lipoprotein lipase (LPL) is robustly expressed in the heart. Hence, LPL-mediated lipolysis of lipoproteins is suggested to be a key source of FAs for cardiac use. Lipoprotein clearance by LPL occurs at the apical surface of the endothelial cell lining of the coronary lumen. In the heart, the majority of LPL is produced in cardiomyocytes and subsequently is translocated to the apical luminal surface. Here, vascular LPL hydrolyzes lipoprotein-triglyceride to provide the heart with FAs for ATP generation. This article presents an overview of cardiac LPL, explains how the enzyme works, describes key molecules that regulate its activity and outlines how changes in LPL are brought about by physiological and pathological states such as fasting and diabetes, respectively.
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