Evidence map›Paper›PMID 20484557›Full record

ArticleThe Journal of pharmacology and experimental therapeutics2010

5A apolipoprotein mimetic peptide promotes cholesterol efflux and reduces atherosclerosis in mice.

Marcelo J A Amar, Wilissa D'Souza, Scott Turner, Stephen Demosky, Denis Sviridov, John Stonik, Jayraz Luchoomun, Jason Voogt, Marc Hellerstein, Dmitri Sviridov and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of pharmacology and experimental therapeutics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
8.3field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

70 citing papers in PubMed, 1 synthesis or guideline pooled it, 110 citations in OpenAlex.

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  18. Probing the Assembly of HDL Mimetic, Drug Carrying Nanoparticles Using Intrinsic Fluorescence.The Journal of pharmacology and experimental therapeutics · 2020
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10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 2 countries.

Marcelo J A AmarLipoprotein Metabolism Section, Pulmonary and Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, USA. ma90x@nih.gov
Wilissa D'Souza
Scott Turner
Stephen Demosky
Denis Sviridov
John Stonik
Jayraz Luchoomun
Jason Voogt
Marc Hellerstein
Dmitri Sviridov
Alan T Remaley
National Heart Lung and Blood Institute · USNational Institutes of Health · USBaker Heart and Diabetes Institute · AUKineMed (United States) · USUniversity of California, San Francisco · US

Funding

Development of Apo Mimetic Peptides for the Treatment Cardiovascular DiseaseZIAHL006095 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI REMALEY, ALAN THOMAS · 2010 to 2025
$20.3M
Use Of Animal Models To Study Lipid Genes That Modulate AtherosclerosisZIAHL002058 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI REMALEY, ALAN THOMAS · 2009 to 2019
$14.3M
Intramural NIH HHS
6 · The paper itself

Abstract

Intravenous administration of apolipoprotein (apo) A-I complexed with phospholipid has been shown to rapidly reduce plaque size in both animal models and humans. Short synthetic amphipathic peptides can mimic the antiatherogenic properties of apoA-I and have been proposed as alternative therapeutic agents. In this study, we investigated the atheroprotective effect of the 5A peptide, a bihelical amphipathic peptide that specifically effluxes cholesterol from cells by ATP-binding cassette transporter 1 (ABCA1). 5A stimulated a 3.5-fold increase in ABCA1-mediated efflux from cells and an additional 2.5-fold increase after complexing it with phospholipid (1:7 mol/mol). 5A-palmitoyl oleoyl phosphatidyl choline (POPC), but not free 5A, was also found to promote cholesterol efflux by ABCG1. When incubated with human serum, 5A-POPC bound primarily to high-density lipoprotein (HDL) but also to low-density lipoprotein (LDL) and promoted the transfer of cholesterol from LDL to HDL. Twenty-four hours after intravenous injection of 5A-POPC (30 mg/kg) into apoE-knockout (KO) mice, both the cholesterol (181%) and phospholipid (219%) content of HDL significantly increased. By an in vivo cholesterol isotope dilution study and monitoring of the flux of cholesterol from radiolabeled macrophages to stool, 5A-POPC treatment was observed to increase reverse cholesterol transport. In three separate studies, 5A when complexed with various phospholipids reduced aortic plaque surface area by 29 to 53% (n = 8 per group; p < 0.02) in apoE-KO mice. No signs of toxicity from the treatment were observed during these studies. In summary, 5A promotes cholesterol efflux both in vitro and in vivo and reduces atherosclerosis in apoE-KO mice, indicating that it may be a useful alternative to apoA-I for HDL therapy.

Indexed as

PeptidesAnimalsAortaApolipoprotein A-IApolipoproteins EAtherosclerosisATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 1Biological TransportCholesterolFemaleHumansIntercellular Signaling Peptides and ProteinsIn Vitro TechniquesLipoproteinsLipoproteins, HDL5A peptideABCG1 protein, mouseApolipoprotein A-IApolipoproteins EATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 1CholesterolIntercellular Signaling Peptides and ProteinsLipoproteinsLipoproteins, HDLLipoproteins, LDLPeptidesPhosphatidylcholines

Identifiers

PMID20484557
PMCPMC2913774
OpenAlexW2119870307

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.