Evidence map›Paper›PMID 19656510›Full record

ArticleAtherosclerosis2010

Anti-inflammatory and recycling properties of an apolipoprotein mimetic peptide, Ac-hE18A-NH(2).

Geeta Datta, C Roger White, Nassrin Dashti, Manjula Chaddha, Mayakonda N Palgunachari, Himanshu Gupta, Shaila P Handattu, David W Garber, G M Anantharamaiah

Abstract read
In one paragraph

Article in Atherosclerosis, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 6% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. ApoE COG 133 mimetic peptide improves survival, infection burden, andExperimental biology and medicine (Maywood, N.J.) · 2025
    Article
  6. Review
  7. Article
  8. Review
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  12. Novel apoE receptor mimetics reduce LPS-induced microglial inflammation.American journal of translational research · 2019
    Article
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  14. Review
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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

9 authors at 1 institution in 1 country.

Geeta DattaDepartment of Medicine, Atherosclerosis Research Unit, Division of Gerontology, Geriatrics and Palliative Medicine, University of Alabama at Birmingham, 1808 Seventh Avenue South, Birmingham, AL 35294, USA. gdatta@uab.edu
C Roger White
Nassrin Dashti
Manjula Chaddha
Mayakonda N Palgunachari
Himanshu Gupta
Shaila P Handattu
David W Garber
G M Anantharamaiah
University of Alabama at Birmingham · US

Funding

Molecular Mechanisms of Biogenesis of Apolipoprotein B-Containing LipoproteinsR01HL084685 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI DASHTI, NASSRIN · 2006 to 2009
$1.7M
Enhanced Hepatic Lipoprotein Uptake and AtherogenesisR01HL065663 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ANANTHARAMAIAH, G M · 2001 to 2004
$1.4M
HDL Modulation of monocyte function in endotoxemiaR01GM082952 · NIGMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI DATTA, GEETA, WHITE, C ROGER · 2008 to 2011
$1.3M
HDL and Vascular Injury in Type 2 DiabetesR01DK070040 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI WHITE, C ROGER · 2005 to 2008
$1.2M
Endotoxin Neutralization by HDL-Mimetic PeptideK08HL085282 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GUPTA, HIMANSHU · 2006 to 2010
$633k
NHLBI NIH HHS HL084685NHLBI NIH HHS HL085282NHLBI NIH HHS HL65663NHLBI NIH HHS K08 HL085282NHLBI NIH HHS R01 HL065663NHLBI NIH HHS R01 HL084685NIDDK NIH HHS DK070040NIDDK NIH HHS R01 DK070040NIGMS NIH HHS GM082952NIGMS NIH HHS R01 GM082952
6 · The paper itself

Abstract

Apolipoprotein E (apoE) exerts prominent anti-inflammatory effects and undergoes recycling by target cells. We previously reported that the peptide Ac-hE18A-NH(2), composed of the receptor binding domain (LRKLRKRLLR) of apoE covalently linked to the Class A amphipathic peptide 18A, dramatically lowers plasma cholesterol and lipid hydroperoxides and enhances paraoxonase activity in dyslipidemic animal models. The objective of this study was to determine whether this peptide, analogous to apoE, exerts anti-inflammatory effects and undergoes recycling under in vitro conditions. Pulse chase studies using [(125)I]-Ac-hE18A-NH(2) in THP-1 derived macrophages and HepG2 cells showed greater amounts of intact peptide in the cells at later time points indicating recycling of the peptide. Ac-hE18A-NH(2) induced a 2.5-fold increase in prebeta-HDL in the conditioned media of HepG2 cells. This effect persisted for 3 days after removal of the peptide from culture medium. Ac-hE18A-NH(2) also induced the secretion of cell surface apoE from THP-1 macrophages. In addition, the peptide increased cholesterol efflux from THP-1 cells by an ABCA1 independent mechanism. Moreover, Ac-hE18A-NH(2) inhibited LPS-induced vascular cell adhesion molecule-1 (VCAM-1) expression, and reduced monocyte adhesion in human umbilical vein endothelial cells (HUVECs). It also reduced the secretion of interleukin-6 (IL-6) and monocyte chemoattractant protein-1 (MCP-1) from THP-1 macrophages even when administered post-LPS and abolished the 18-fold increase in LPS-induced mRNA levels for MCP-1 in THP-1 cells. Taken together, these results suggest that addition of the putative apoE receptor-domain to the Class A amphipathic peptide 18A results in a peptide that, similar to apoE, recycles, thus enabling the potentiation and prolongation of its anti-atherogenic and anti-inflammatory effects. Such a peptide has great potential as a therapeutic agent in the management of atherosclerosis and other inflammatory diseases.

Indexed as

AnimalsAnti-Inflammatory AgentsCells, CulturedHigh-Density Lipoproteins, Pre-betaHumansInflammationLipoproteinsPeptide FragmentsPeptidesRabbitsTime FactorsAc-hE18A-NH(2)Anti-Inflammatory AgentsHigh-Density Lipoproteins, Pre-betaLipoproteinsPeptide FragmentsPeptides

Identifiers

PMID19656510
PMCPMC2813354
OpenAlexW2031911761

What OpenQuestion holds

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LicenceTDM
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.