Cited by 690Cholesterol and Lipid MetabolismMicroRNA in disease regulationAtherosclerosis and Cardiovascular Diseases

Antagonism of miR-33 in mice promotes reverse cholesterol transport and regression of atherosclerosis

Open access
Rayner, Katey J., Sheedy, Frederick J., Esau, Christine C., Hussain, Farah N., Temel, Ryan E., Parathath, Saj, van Gils, Janine M., Rayner, Alistair J. +5 more·2011·Journal of Clinical Investigation

Abstract

Plasma HDL levels have a protective role in atherosclerosis, yet clinical therapies to raise HDL levels have remained elusive. Recent advances in the understanding of lipid metabolism have revealed that miR-33, an intronic microRNA located within the SREBF2 gene, suppresses expression of the cholesterol transporter ABC transporter A1 (ABCA1) and lowers HDL levels. Conversely, mechanisms that inhibit miR-33 increase ABCA1 and circulating HDL levels, suggesting that antagonism of miR-33 may be atheroprotective. As the regression of atherosclerosis is clinically desirable, we assessed the impact of miR-33 inhibition in mice deficient for the LDL receptor (Ldlr-/- mice), with established atherosclerotic plaques. Mice treated with anti-miR33 for 4 weeks showed an increase in circulating HDL levels and enhanced reverse cholesterol transport to the plasma, liver, and feces. Consistent with this, anti-miR33-treated mice showed reductions in plaque size and lipid content, increased markers of plaque stability, and decreased inflammatory gene expression. Notably, in addition to raising ABCA1 levels in the liver, anti-miR33 oligonucleotides directly targeted the plaque macrophages, in which they enhanced ABCA1 expression and cholesterol removal. These studies establish that raising HDL levels by anti-miR33 oligonucleotide treatment promotes reverse cholesterol transport and atherosclerosis regression and suggest that it may be a promising strategy to treat atherosclerotic vascular disease.

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Crossref · 10.1172/jci57275

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Authors
Rayner, K. J., Sheedy, F. J., Esau, C. C., Hussain, F. N., Temel, R. E., Parathath, S., van Gils, J. M., Rayner, A. J., Chang, A. N., Suarez, Y., Fernandez-Hernando, C., Fisher, E. A., & Moore, K. J.
Affiliations
  • New York University (US)
  • Regulus Therapeutics (United States) (US)
  • Wake Forest University Health Sciences (US)
Corresponding author
Moore, Kathryn J.
Venue
Journal of Clinical Investigation
Published
2011-07-01
Volume
121
Issue
7
Pages
2921-2931
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2168964544
Cited by
690
References
0
Citations by year
2026: 14 · 2025: 27 · 2024: 21 · 2023: 35 · 2022: 41 · 2021: 36 · 2020: 38 · 2019: 43 · 2018: 45 · 2017: 48 · 2016: 63 · 2015: 62 · 2014: 82 · 2013: 71 · 2012: 50
FWCI
70.78
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
Funders
  • National Institutes of Health (5r00hl088528-05)
  • Canadian Institutes of Health Research
  • National Institute on Aging (R01AG020255)
  • National Heart, Lung, and Blood Institute (R01HL084312, R00-HL088528, K99HL088528, P01HL098055, R01HL108182, R01HL107953)
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
Keywords
miR-33, reverse cholesterol transport, HDL cholesterol, atherosclerosis regression, ABCA1, SREBF2, LDL receptor-deficient mice, atherosclerotic plaque, plaque macrophages, cholesterol efflux, plaque stability, inflammation
MeSH terms
Animals, Humans, Cholesterol, HDL, Liver, Macrophages, Mice, Inbred C57BL, Random Allocation, Receptors, LDL, Gene Expression, Mice, Knockout, ATP-Binding Cassette Transporters, MicroRNAs, Atherosclerosis, Lipid Metabolism, Mice, ATP Binding Cassette Transporter 1

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