Cited by 276Lipid metabolism and disordersLipoproteins and Cardiovascular HealthCholesterol and Lipid Metabolism

ApoC-III inhibits clearance of triglyceride-rich lipoproteins through LDL family receptors

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Gordts, Philip L.S.M., Nock, Ryan, Son, Ni-Huiping, Ramms, Bastian, Lew, Irene, Gonzales, Jon C., Thacker, Bryan E., Basu, Debapriya +7 more·2016·Journal of Clinical Investigation

Abstract

Hypertriglyceridemia is an independent risk factor for cardiovascular disease, and plasma triglycerides (TGs) correlate strongly with plasma apolipoprotein C-III (ApoC-III) levels. Antisense oligonucleotides (ASOs) for ApoC-III reduce plasma TGs in primates and mice, but the underlying mechanism of action remains controversial. We determined that a murine-specific ApoC-III-targeting ASO reduces fasting TG levels through a mechanism that is dependent on low-density lipoprotein receptors (LDLRs) and LDLR-related protein 1 (LRP1). ApoC-III ASO treatment lowered plasma TGs in mice lacking lipoprotein lipase (LPL), hepatic heparan sulfate proteoglycan (HSPG) receptors, LDLR, or LRP1 and in animals with combined deletion of the genes encoding HSPG receptors and LDLRs or LRP1. However, the ApoC-III ASO did not lower TG levels in mice lacking both LDLR and LRP1. LDLR and LRP1 were also required for ApoC-III ASO-induced reduction of plasma TGs in mice fed a high-fat diet, in postprandial clearance studies, and when ApoC-III-rich or ApoC-III-depleted lipoproteins were injected into mice. ASO reduction of ApoC-III had no effect on VLDL secretion, heparin-induced TG reduction, or uptake of lipids into heart and skeletal muscle. Our data indicate that ApoC-III inhibits turnover of TG-rich lipoproteins primarily through a hepatic clearance mechanism mediated by the LDLR/LRP1 axis.

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  • Elevated levels of apolipoprotein C-III lead to chylomicronemia and severe hypertriglyceridemia by inhibiting LPL activity, inhibiting hepatic uptake of triglyceride-rich lipoproteins, and increasing hepatic secretion of triglyceride-rich lipoproteins.

    “In contrast, elevated levels of apolipoprotein C-III lead to chylomicronemia and severe hypertriglyceridemia by inhibiting LPL activity, 21 inhibiting hepatic uptake of triglyceride-rich lipoproteins, 22 and increasing hepatic secretion of triglyceride-rich lipoproteins. 21”
  • In three patients with FCS, volanesorsen reduced TG levels by up to 86% through a mechanism independent of LPL activity.

    “In three patients with FCS, volanesorsen-reduced TG levels by up to 86%,72 through a mechanism independent of LPL activity.73”

    From Clinical review on triglycerides (2020) · cites this paper as [73]

  • The trial data indicate that volanesorsen-mediated apolipoprotein C-III reduction enhances clearance of triglyceride-rich lipoproteins in patients lacking LPL activity.

    “These data show that volanesorsenmediated lowering of apolipoprotein C-III effectively enhances clearance of triglyceride-rich lipoproteins in patients without LPL activity.27”

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Research works printed but not linked: 2

  1. Nordestgaard BG, Varbo A. Triglycer- ides and cardiovascular disease. Lancet. 2014;384(9943):626-635.
  2. Shachter NS, et al. Overexpression of apolipo- protein CII causes hypertriglyceridemia in trans- genic mice. J Clin Invest. 1994;93(4):1683-1690.

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Authors
Gordts, P. L. S. M., Nock, R., Son, N.-H., Ramms, B., Lew, I., Gonzales, J. C., Thacker, B. E., Basu, D., Lee, R. G., Mullick, A. E., Graham, M. J., Goldberg, I. J., Crooke, R. M., Witztum, J. L., & Esko, J. D.
Affiliations
  • University of California San Diego (US)
  • NYU Langone Health (US)
  • Bielefeld University (DE)
  • Ionis Pharmaceuticals (United States) (US)
Corresponding author
  • Gordts, Philip L.S.M.
  • Esko, Jeffrey D.
Venue
Journal of Clinical Investigation
Published
2016-07-11
Volume
126
Issue
8
Pages
2855-2866
ISSN
  • 0021-9738 (ISSN-L)
  • 1558-8238
OpenAlex
W2471143596
Cited by
274
References
47
Citations by year
2026: 32 · 2025: 20 · 2024: 24 · 2023: 19 · 2022: 27 · 2021: 35 · 2020: 35 · 2019: 30 · 2018: 21 · 2017: 22 · 2016: 8
FWCI
22.27
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (R01HL045095, P01HL092969, P01HL107150, R37HL045095, P01HL088093)
  • National Institute of General Medical Sciences (R01GM033063, R37GM033063)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
apolipoprotein C-III, antisense oligonucleotides, triglyceride-rich lipoproteins, LDL receptor, hypertriglyceridemia, heparan sulfate proteoglycans, lipoprotein lipase, high-fat diet, cardiovascular risk
MeSH terms
Animals, Female, Genotype, Heparin, Ketones, Lipoproteins, Liver, Male, Mice, Inbred C57BL, Mice, Transgenic, Myocardium, Receptors, LDL, Risk Factors, Triglycerides, Hepatocytes, Tumor Suppressor Proteins, Low Density Lipoprotein Receptor-Related Protein-1, Mice, Apolipoprotein C-III

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