Cited by 19Cholesterol and Lipid MetabolismLipoproteins and Cardiovascular HealthParaoxonase enzyme and polymorphisms

Lipoprotein profiles in human heterozygote carriers of a functional mutation P297S in scavenger receptor class B1

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Ljunggren, Stefan A., Levels, Johannes H.M., Hovingh, Kees, Holleboom, Adriaan G., Vergeer, Menno, Argyri, Letta, Gkolfinopoulou, Christina, Chroni, Angeliki +5 more·2015·Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids

Abstract

The scavenger receptor class B type 1 (SR-B1) is an important HDL receptor involved in cholesterol uptake and efflux, but its physiological role in human lipoprotein metabolism is not fully understood. Heterozygous carriers of the SR-B1(P297S) mutation are characterized by increased HDL cholesterol levels, impaired cholesterol efflux from macrophages and attenuated adrenal function. Here, the composition and function of lipoproteins were studied in SR-B1(P297S) heterozygotes.Lipoproteins from six SR-B1(P297S) carriers and six family controls were investigated. HDL and LDL/VLDL were isolated by ultracentrifugation and proteins were separated by two-dimensional gel electrophoresis and identified by mass spectrometry. HDL antioxidant properties, paraoxonase 1 activities, apoA-I methionine oxidations and HDL cholesterol efflux capacity were assessed.Multivariate modeling separated carriers from controls based on lipoprotein composition. Protein analyses showed a significant enrichment of apoE in LDL/VLDL and of apoL-1 in HDL from heterozygotes compared to controls. The relative distribution of plasma apoE was increased in LDL and in lipid-free form. There were no significant differences in paraoxonase 1 activities, HDL antioxidant properties or HDL cholesterol efflux capacity but heterozygotes showed a significant increase of oxidized methionines in apoA-I.The SR-B1(P297S) mutation affects both HDL and LDL/VLDL protein compositions. The increase of apoE in carriers suggests a compensatory mechanism for attenuated SR-B1 mediated cholesterol uptake by HDL. Increased methionine oxidation may affect HDL function by reducing apoA-I binding to its targets. The results illustrate the complexity of lipoprotein metabolism that has to be taken into account in future therapeutic strategies aiming at targeting SR-B1.

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Crossref · 10.1016/j.bbalip.2015.09.006

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  • Mutations of SR-BI (P279S, P376L) are associated with both significant increases in HDL-C and increased cardiovascular risk.

    “Only recently, mutations of scavenger receptor (SR-BI) (P279S, P376L) have been described which are associated with both significant increases in HDL-C and increased cardiovascular risk [38–40].”

    From HDL cholesterol: reappraisal of its clinical relevance (2017) · cites this paper as [39]

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  1. [5][5] Acton, S., Rigotti, A., Landschulz, K., Xu, S. et al., Identification of scavenger receptor SR-BI as a high density lipoprotein receptor. Science, 1996;271:518-520. -

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Authors
Ljunggren, S. A., Levels, J. H. M., Hovingh, K., Holleboom, A. G., Vergeer, M., Argyri, L., Gkolfinopoulou, C., Chroni, A., Sierts, J. A., Kastelein, J. J., Kuivenhoven, J. A., Lindahl, M., & Karlsson, H.
Affiliations
  • Linköping University (SE)
  • Amsterdam UMC Location University of Amsterdam (NL)
  • National Centre of Scientific Research "Demokritos" (GR)
  • University Medical Center Groningen (NL)
Venue
Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids
Publisher
Elsevier BV
Published
2015-12
Volume
1851
Issue
12
Pages
1587-1595
ISSN
1388-1981 (ISSN-L)
OpenAlex
W2189806027
Cited by
19
References
45
Citations by year
2025: 2 · 2024: 1 · 2022: 3 · 2021: 3 · 2020: 1 · 2019: 3 · 2018: 2 · 2017: 3 · 2016: 1
FWCI
2.01
Type
journal article
Language
en
Open access
Locations
  • Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids (publishedVersion)
  • PubMed (publishedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • KTH Publication Database DiVA (KTH Royal Institute of Technology) (submittedVersion, other-oa)
  • Pure Amsterdam UMC (submittedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion)
Funders
  • EU's Sixth Framework Program (037631)
  • European Union (FP7-603091-2)
  • CardioVascular Research Initiative (CVON2011-16)
  • Research Council of South East Sweden (FORSS-3755)
  • County Council of Östergötland
  • Faculty of Health Sciences in Linköping
  • NWO (91612122, 91613031)
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Paraoxonase enzyme and polymorphisms
Keywords
scavenger receptor class B type I, heterozygous carriers, lipoprotein composition, HDL cholesterol, apolipoprotein E, HDL antioxidant activity, paraoxonase 1, HDL cholesterol efflux, cholesterol absorption, lipoprotein metabolism
MeSH terms
Antioxidants, Female, Heterozygote, Humans, Lipoproteins, Male, Amino Acid Substitution, Mutation, Missense, Aryldialkylphosphatase, Scavenger Receptors, Class B

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