Cited by 957Cholesterol and Lipid MetabolismMicroRNA in disease regulationLipoproteins and Cardiovascular Health

MicroRNA-33 and the SREBP Host Genes Cooperate to Control Cholesterol Homeostasis

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Najafi-Shoushtari, S. Hani, Kristo, Fjoralba, Li, Yingxia, Shioda, Toshi, Cohen, David E., Gerszten, Robert E., Näär, Anders M.·2010·Science

Abstract

miR-33 in Cholesterol Control: With the well-established link between serum cholesterol levels and cardiovascular disease and the availability of effective cholesterol-lowering drugs, cholesterol screening has rapidly become a routine part of health care. Yet, much remains to be learned about how cholesterol levels are regulated at the cellular level (see the Perspective by Brown et al. ). Now, Najafi-Shoushtari et al. (p. 1566 , published online 13 May) and Rayner et al. (p. 1570 , published online 13 May) have discovered a new molecular player in cholesterol control—a small noncoding RNA that, intriguingly, is embedded within the genes coding for sterol regulatory element-binding proteins (SREBPs), transcription factors already known to regulate cholesterol levels. This microRNA, called miR-33, represses expression of the adenosine triphosphate–binding cassette transporter A1, a protein that regulates synthesis of high-density lipoprotein (HDL, or “good” cholesterol) and that helps to remove “bad” cholesterol from the blood. Reducing the levels of miR-33 in mice boosted serum HDL levels, suggesting that manipulation of this regulatory circuit might be therapeutically useful.

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  • Pharmacological inhibition of miR-33 increased plasma HDL cholesterol levels in mice and primates, leading to a marked reduction of atherosclerosis phenotypes.

    “Pharmacological inhibition of miR-33 increased plasma high-density lipoprotein cholesterol levels in mice (Horie et al., 2010;Najafi-Shoushtari et al., 2010;Rayner et al., 2011a) and primates (Rayner et al., 2011b;Rottiers et al., 2013), leading to a marked reduction of atherosclerosis phenotypes.”

    From microRNA-33 Regulates ApoE Lipidation and Amyloid-β Metabolism in the Brain (2015) · cites this paper as Najafi-Shoushtari et al., 2010

    The Results report that antisense inhibition of miR-33 significantly increased plasma HDL cholesterol in mice. This paper does not report miR-33 inhibition in primates or demonstrate a reduction in atherosclerosis phenotypes; the citing sentence assigns the primate finding to other citations. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • In vivo antagonism or genetic deletion of miR-33 enhances hepatic ABCA1 expression and increases circulating HDL-cholesterol.

    “in vivo antagonism or genetic deletion of miR-33 enhances hepatic ABCA1 expression and increases circulating HDL-cholesterol (HDL-C) (Marquart et al., 2010; Najafi-Shoushtari et al., 2010; Rayner et al., 2010).”

    From Genetic dissection of the impact of miR-33a and miR-33b during the progression of atherosclerosis (2017) · cites this paper as Najafi-Shoushtari et al., 2010

    The Results report that in vivo miR-33a antisense treatment significantly increased plasma HDL-cholesterol in mice. They describe only modest effects on hepatic ABCA1 mRNA and protein, rather than clearly establishing the claimed enhancement, and do not report genetic deletion of miR-33. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Differences in miRNA expression vary between cell types, suggesting that the role of miR-33b in the liver and other tissues may be considerably more important.

    “These differences in miRNA expression vary between cell types suggesting that the role of miR-33b in the liver, where miR-33 is most highly expressed both in our mouse model and in human tissues (Najafi-Shoushtari et al., 2010), and other tissues may be considerably more important.”

    From Genetic dissection of the impact of miR-33a and miR-33b during the progression of atherosclerosis (2017) · cites this paper as Najafi-Shoushtari et al., 2010

    The Results (page unavailable) report miR-33a/b expression across human and mouse tissues, but do not state that expression is highest in human liver—the specific point to which this citation is attached. The citing authors’ mouse-model observation and inference about miR-33b’s importance are their own, rather than findings attributed to this source. (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • In miR-33a knockout mice or when miR-33a is suppressed by synthetic nucleic acids such as antagomirs, the expression of ABCA1 in macrophages and the liver is increased.

    “In miR-33a knockout mice or when miR-33a is suppressed by synthetic nucleic acids such as antagomirs, the expression of ABCA1 in macrophages and the liver is increased 11 - 15) .”

    From Critical Role of microRNA-33a/b in Cardiovascular and Metabolic Disease: Molecular Mechanisms and Therapeutic Perspectives (2026) · cites this paper as [11]

    The Results (page unavailable) report that anti-miR-33a/b oligonucleotides increased ABCA1 in cell lines including mouse macrophages and human liver carcinoma cells. In mice given miR-33a antisense, the paper reports only modest effects on hepatic ABCA1; it does not report results from miR-33a knockout mice. Thus, it supports the antisense finding but not the full claim as stated. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • MicroRNA-33 targets ABCA1 and ABCG1 in vivo.

    “MicroRNA (miR)-33 is known to target ABCA1 and ABCG1 in vivo.”

    From MicroRNA‐33 Deficiency Reduces the Progression of Atherosclerotic Plaque in ApoE <sup>−/−</sup> Mice (2012) · cites this paper as [17]

    The Results show that miR-33 targets the ABCA1 3′UTR, and the mouse experiment reports an HDL increase consistent with miR-33a regulation of ABCA1-dependent cholesterol efflux in vivo. The passages do not show that miR-33 targets ABCG1 in vivo; a search for ABCG1 returned no passage addressing it. (LLM, conf=0.87)

    Experimental — accuracy not yet measured

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Authors
Najafi-Shoushtari, S. H., Kristo, F., Li, Y., Shioda, T., Cohen, D. E., Gerszten, R. E., & Näär, A. M.
Affiliations
  • Harvard University (US)
  • Massachusetts General Hospital (US)
  • Brigham and Women's Hospital (US)
Corresponding author
Näär, Anders M.
Venue
Science
Published
2010-06-18
Volume
328
Issue
5985
Pages
1566-1569
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2102901373
Cited by
957
References
31
Citations by year
2026: 20 · 2025: 30 · 2024: 24 · 2023: 47 · 2022: 41 · 2021: 56 · 2020: 50 · 2019: 65 · 2018: 66 · 2017: 59 · 2016: 86 · 2015: 88 · 2014: 85 · 2013: 92 · 2012: 73
FWCI
80.88
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of General Medical Sciences (R01GM071449)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R21DK084459, R01 DK48873, P30-DK34854, R01DK056626, R01 DK56626, R37DK048873, P30DK034854, R01DK048873)
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
Keywords
miR-33, cholesterol homeostasis, ABCA1, reverse cholesterol transport, HDL synthesis, cholesterol efflux, post-transcriptional regulation, antisense oligonucleotides, locked nucleic acid, cholesterol biosynthesis, cardiometabolic disease
MeSH terms
Animals, Cell Line, Cholesterol, Diet, Gene Expression Regulation, Homeostasis, Humans, Introns, Cholesterol, HDL, Liver, Macrophages, Mice, Inbred C57BL, Up-Regulation, Oligonucleotides, Antisense, ATP-Binding Cassette Transporters, 3' Untranslated Regions, RNA Interference, MicroRNAs, Mice, Sterol Regulatory Element Binding Proteins, Sterol Regulatory Element Binding Protein 1, Sterol Regulatory Element Binding Protein 2, ATP Binding Cassette Transporter 1

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