Journal
PROGRESS IN LIPID RESEARCH
Volume 83, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.plipres.2021.101109
Keywords
NAFLD; Atherosclerosis; Hepatic cholesterol transport; Cholesterol homeostasis; Cholesterol metabolism
Funding
- National Natural Sciences Foundation of China [81770461]
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NAFLD is a common chronic liver disease globally, with atherosclerotic cardiovascular disease being the leading cause of mortality in NAFLD patients. The liver plays a crucial role in cholesterol metabolism, and abnormal hepatic cholesterol metabolism can lead to NAFLD and drive the development of atherosclerosis.
Non-alcoholic fatty liver disease (NAFLD) is a quickly emerging global health problem representing the most common chronic liver disease in the world. Atherosclerotic cardiovascular disease represents the leading cause of mortality in NAFLD patients. Cholesterol metabolism has a crucial role in the pathogenesis of both NAFLD and atherosclerosis. The liver is the major organ for cholesterol metabolism. Abnormal hepatic cholesterol meta-bolism not only leads to NAFLD but also drives the development of atherosclerotic dyslipidemia. The cholesterol level in hepatocytes reflects the dynamic balance between endogenous synthesis, uptake, esterification, and export, a process in which cholesterol is converted to neutral cholesteryl esters either for storage in cytosolic lipid droplets or for secretion as a major constituent of plasma lipoproteins, including very-low-density lipoproteins, chylomicrons, high-density lipoproteins, and low-density lipoproteins. In this review, we describe decades of research aimed at identifying key molecules and cellular players involved in each main aspect of hepatic cholesterol metabolism. Furthermore, we summarize the recent advances regarding the biological processes of hepatic cholesterol transport and its role in NAFLD and atherosclerosis.
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