Cited by 170Lipoproteins and Cardiovascular HealthLipid metabolism and disordersDiabetes, Cardiovascular Risks, and Lipoproteins

APOE gene variants in primary dyslipidemia

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Khalil, Yara Abou, Rabès, Jean-Pierre, Boileau, Catherine, Varret, Mathilde·2021·Atherosclerosis

Abstract

Apolipoprotein E (apoE) is a major apolipoprotein involved in lipoprotein metabolism. It is a polymorphic protein and different isoforms are associated with variations in lipid and lipoprotein levels and thus cardiovascular risk. The isoform apoE4 is associated with an increase in LDL-cholesterol levels and thus a higher cardiovascular risk compared to apoE3. Whereas, apoE2 is associated with a mild decrease in LDL-cholesterol levels. In the presence of other risk factors, apoE2 homozygotes could develop type III hyperlipoproteinemia (familial dysbetalipoproteinemia or FD), an atherogenic disorder characterized by an accumulation of remnants of triglyceride-rich lipoproteins. Several rare APOE gene variants were reported in different types of dyslipidemias including FD, familial combined hyperlipidemia (FCH), lipoprotein glomerulopathy and bona fide autosomal dominant hypercholesterolemia (ADH). ADH is characterized by elevated LDL-cholesterol levels leading to coronary heart disease, and due to molecular alterations in three main genes: LDLR, APOB and PCSK9. The identification of the APOE-p.Leu167del variant as the causative molecular element in two different ADH families, paved the way to considering APOE as a candidate gene for ADH. Due to non mendelian interacting factors, common genetic and environmental factors and perhaps epigenetics, clinical presentation of lipid disorders associated with APOE variants often strongly overlap. More studies are needed to determine the spectrum of APOE implication in each of the diseases, notably ADH, in order to improve clinical and genetic diagnosis, prognosis and patient management. The purpose of this review is to comment on these APOE variants and on the molecular and clinical overlaps between dyslipidemias.

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Crossref · 10.1016/j.atherosclerosis.2021.05.007

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Research works printed but not linked: 2

  1. Mahley RW, Rall JSC. Chapter 119: Type III hyperlipoproteinemia (dysbetalipoproteinemia): the role of apolipoprotein E in normal and abnormal lipoprotein metabolism. In: Scriver R, Beaudet AL, Sly WS, et al, editors 2001;Metabolic and Molecular Base of Inherited Disease:New York: McGraw-Hil. https://doi.org/10.1036/ommbid.148. · DOI
  2. Feussner, 1996, Apolipoprotein E5 (Glu212-->Lys): increased binding to cell surface proteoglycans but decreased uptake and lysosomal degradation in cultured fibroblasts, J. Lipid Res., 37, 1632, 10.1016/S0022-2275(20)39106-9 · DOI · Paper page

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Authors
Khalil, Y. A., Rabès, J.-P., Boileau, C., & Varret, M.
Affiliations
Inserm (FR)
Corresponding author
Varret, Mathilde
Venue
Atherosclerosis
Publisher
Elsevier BV
Published
2021-07
Volume
328
Pages
11-22
ISSN
0021-9150 (ISSN-L)
OpenAlex
W3164961612
Cited by
170
References
128
Citations by year
2026: 37 · 2025: 33 · 2024: 37 · 2023: 36 · 2022: 24 · 2021: 3
FWCI
6.02
Type
journal article
Language
en
Update notices
erratum (2023-12-01)
Open access
Locations
  • Atherosclerosis (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by-nd)
Funders
  • Universite Saint-Joseph
  • INSERM
  • Leducq Foundation
  • Agence Nationale de la Recherche (ANR-16-RHUS-0007)
  • Conseil National de la Recherche Scientifique
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
apolipoprotein E, primary dyslipidemia, familial dysbetalipoproteinemia, type III hyperlipoproteinemia, familial combined hyperlipidemia, lipoprotein glomerulopathy, autosomal dominant hypercholesterolemia, LDL cholesterol, APOE ε4, APOE2, cardiovascular risk, genetic diagnosis, epigenetics
MeSH terms
Proprotein Convertase 9, Apolipoproteins E, Humans, Hyperlipoproteinemia Type II, Receptors, LDL, Dyslipidemias

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