Cited by 155Cholesterol and Lipid MetabolismAtherosclerosis and Cardiovascular DiseasesLipoproteins and Cardiovascular Health

Current understanding of the metabolism and biological actions of HDL

Eckardstein, Arnold von, Hersberger, Martin, Rohrer, Lucia·2005·Current Opinion in Clinical Nutrition and Metabolic Care

Abstract

Purpose of review A low concentration of HDL-cholesterol is an important risk factor for coronary heart disease. The purpose of this review is to summarize the novel functions of HDL that may protect not only from atherosclerosis, but also from inflammation-induced organ damage. Recent findings HDL interacts with several cellular receptors and lipid transporters. The interactions of HDL or apolipoprotein A-I with the scavenger receptor BI or adenosine triphosphate binding cassette transporters A1, G1 and G4 induce cholesterol efflux. Apolipoproteins and enzymes carried by HDL exert antioxidative functions. Some oxidative modifications of apolipoprotein A-I, for example of tyrosine residues, may however interfere with anti-atherosclerotic activities. The interactions of HDL and lysosphingolipids therein with scavenger receptor BI and sphingolipid receptors, respectively, elicit signals activating the protein kinase Akt, which in turn is a regulator of apoptosis in beta, endothelial and smooth muscle cells as well as a regulator of nitric oxide production and adhesion molecule expression in endothelial cells. Other signal transduction cascades are also elicited by HDL, some of which induce cholesterol efflux or activate mitogen-activated protein kinases. Summary Properties with respect to cytokine production, lipid oxidation, cholesterol efflux and reverse cholesterol transport make HDL a protective agent and thus an interesting therapeutic target in atherosclerosis and inflammation-induced organ damage. Abbreviations ABC: adenosine triphosphate binding cassette transporter; ATP: adenosine triphosphate; CETP: cholesteryl ester transfer protein; EGD: endothelial gene differentiation receptor; LXR: liver X receptor; NO: nitric oxide; PLTP: phospholipid transfer protein; RXR: retinoid X receptor; S1P: sphingosine-1-phosphate; SR-BI: scavenger receptor BI.

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Crossref · 10.1097/00075197-200503000-00007

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Authors
Eckardstein, A. V., Hersberger, M., & Rohrer, L.
Affiliations
University Hospital Zurich (CH)
Corresponding author
Eckardstein, Arnold von
Venue
Current Opinion in Clinical Nutrition and Metabolic Care
Published
2005-03
Volume
8
Issue
2
Pages
147-152
ISSN
1363-1950 (ISSN-L)
OpenAlex
W2057297878
Cited by
155
References
38
Citations by year
2025: 5 · 2024: 4 · 2023: 9 · 2022: 10 · 2021: 6 · 2020: 4 · 2019: 4 · 2018: 3 · 2017: 7 · 2016: 4 · 2015: 6 · 2014: 9 · 2013: 6 · 2012: 10
FWCI
2.49
Type
journal article
Language
en
Open access
closed
Locations
  • Current Opinion in Clinical Nutrition & Metabolic Care (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Research Foundation
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
Keywords
HDL cholesterol, HDL metabolism, apolipoprotein A-I, scavenger receptor BI, ABC transporters, cholesterol efflux, reverse cholesterol transport, anti-atherosclerotic activity, Akt signaling, lysosphingolipids, nitric oxide, apoptosis, endothelial cells, atherosclerosis, coronary artery disease, HDL receptor
MeSH terms
Hypolipidemic Agents, Arteriosclerosis, Biological Transport, Cholesterol, Humans, Cholesterol, HDL, Oxidation-Reduction

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