Cited by 176Cholesterol and Lipid MetabolismParaoxonase enzyme and polymorphismsLipoproteins and Cardiovascular Health

Structural Modifications of HDL and Functional Consequences

Ferretti, Gianna, Bacchetti, Tiziana, Nègre-Salvayre, Anne, Salvayre, Robert, Dousset, Nicole, Curatola, Giovanna·2006·Atherosclerosis

Abstract

High density lipoproteins (HDL) are susceptible to structural modifications mediated by various mechanisms including oxidation, glycation, homocysteinylation or enzymatic degradation. Structural alterations of HDL may affect their functional and atheroprotective properties. Oxidants, such as hypochlorous acid, peroxyl radicals, metal ions, peroxynitrite, lipoxygenases and smoke extracts, can alter both surface and core components of HDL. The formation of lipid peroxidation derivatives, such as thiobarbituric acid reactive substances, conjugated dienes, lipid hydroperoxides and aldehydes, is associated with changes of physical properties (fluidity, molecular order) and of apoprotein conformation. Non-enzymatic glycation, generally associated with lipoxidation, leads to form irreversible complexes called advanced glycation end products. These HDL modifications are accompanied with altered biological activities of HDL and associated enzymes, including paraoxonase, CETP and LCAT. Homocysteine-induced modification of HDL is mediated by homocysteine-thiolactone, and can be prevented by a calcium-dependent thiolactonase/paraoxonase. Tyrosylation of HDL induces the formation of dimers and trimers of apo AI, and alters cholesterol efflux. Phospholipases and proteolytic enzymes can also modify HDL lipid and apoprotein structure. HDL modification induces generally the loss of their anti-inflammatory and cytoprotective properties. This could play a role in the pathogenesis of atherosclerosis and neurodegenerative diseases such as Alzheimer's disease.

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Crossref · 10.1016/j.atherosclerosis.2005.08.008

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  • Ascorbic acid fosters anti-senescence and anti-atherosclerotic effects via an improvement of lipoprotein parameters and microRNA expression through anti-oxidation and anti-glycation, especially in smokers.

    “This vitamin has also been demonstrated to foster anti-senescence and anti-atherosclerotic effects via an improvement of lipoprotein parameters and microRNA expression through anti-oxidation and anti-glycation, especially in smokers [127,128,129].”

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Authors
Ferretti, G., Bacchetti, T., Nègre-Salvayre, A., Salvayre, R., Dousset, N., & Curatola, G.
Affiliations
  • Inserm (FR)
  • Université Toulouse III - Paul Sabatier (FR)
Corresponding author
Ferretti, Gianna
Venue
Atherosclerosis
Publisher
Elsevier BV
Published
2006-01
Volume
184
Issue
1
Pages
1-7
ISSN
0021-9150 (ISSN-L)
OpenAlex
W2085222803
Cited by
176
References
70
Citations by year
2026: 2 · 2025: 4 · 2024: 2 · 2023: 7 · 2022: 8 · 2021: 2 · 2020: 9 · 2019: 11 · 2018: 3 · 2017: 9 · 2016: 5 · 2015: 9 · 2014: 9 · 2013: 9 · 2012: 6
FWCI
2.38
Type
journal article
Language
en
Open access
closed
Locations
  • Atherosclerosis (publishedVersion)
  • PubMed (publishedVersion)
  • Università Politecnica delle Marche (Università Politecnica delle Marche) (submittedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Paraoxonase enzyme and polymorphisms
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
Keywords
high-density lipoprotein, HDL oxidation, lipid peroxidation, glycation, advanced glycation end products, homocysteine thiolactone, paraoxonase, cholesteryl ester transfer protein, lecithin:cholesterol acyltransferase, cholesterol efflux, anti-inflammatory activity, Alzheimer's disease, neurodegenerative diseases
MeSH terms
Antioxidants, Humans, Cholesterol, HDL, Lipid Peroxidation, Atherosclerosis

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