Cited by 31Cholesterol and Lipid MetabolismLipoproteins and Cardiovascular HealthLipid metabolism and disorders

Evidence for differential effects of apoE3 and apoE4 on HDL metabolism

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Hopkins, Paul C.R., Huang, Yadong, McGuire, James G., Pitas, Robert E.·2002·Journal of Lipid Research

Abstract

We present a murine model that examines the effects of macrophage-produced apolipoprotein E3 (apoE3) and apoE4 on VLDL and high density lipoprotein (HDL) metabolism. Mice expressing apoE3 on the Apoe(-/-) background had substantially lower VLDL levels than mice expressing apoE4. In addition, there were differences between the HDL of apoE3- and apoE4-expressing mice. Apoe(-/-) mice have low levels of HDL. Low level expression of either apoE3 or apoE4 was able to restore near-normal HDL levels, which increased dramatically when the mice were challenged with a high-fat diet. ApoE4-expressing mice had smaller HDL than apoE3-expressing mice on both chow and high-fat diets. In addition, plasma from apoE4-expressing mice was less efficient at transferring apoA-I from VLDL to HDL and at generating HDL in vitro than that from apoE3-expressing mice. Thus, we present experimental evidence for differential effects of apoE3 and apoE4 on HDL metabolism that supports epidemiological observations made in humans, which suggested that individual homozygous for the epsilon 4 allele had lower HDL than others.

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Crossref · 10.1194/jlr.m200172-jlr200

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Authors
Hopkins, P. C. R., Huang, Y., McGuire, J. G., & Pitas, R. E.
Affiliations
University of California, San Francisco (US)
Corresponding author
Pitas, Robert E.
Venue
Journal of Lipid Research
Publisher
Elsevier BV
Published
2002-11
Volume
43
Issue
11
Pages
1881-1889
ISSN
0022-2275 (ISSN-L)
OpenAlex
W2138393530
Cited by
31
References
40
Citations by year
2024: 3 · 2023: 1 · 2022: 1 · 2021: 2 · 2020: 1 · 2019: 2 · 2016: 1 · 2015: 3 · 2014: 2 · 2013: 1 · 2012: 2
FWCI
2.54
Type
journal article
Language
en
Open access
Locations
  • Journal of Lipid Research (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • National Institutes of Health (5r01hl061579-04)
  • National Heart, Lung, and Blood Institute (HL61579)
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
Keywords
apolipoprotein E3, APOE ε4, HDL metabolism, VLDL, ApoE-deficient mice, apolipoprotein A-I, high-fat diet, HDL particle size, genetic polymorphism
MeSH terms
Animals, Apolipoproteins E, Cholesterol, Genotype, Humans, Lipoproteins, HDL, Macrophages, Mice, Transgenic, Gene Expression, Mice, Knockout, Models, Animal, Mice, Apolipoprotein E3, Apolipoprotein E4

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