Evidence map›Paper›PMID 22228760›Full record

ArticleThe Journal of biological chemistry2012

Lipid peroxidation product 4-hydroxy-trans-2-nonenal causes endothelial activation by inducing endoplasmic reticulum stress.

Elena Vladykovskaya, Srinivas D Sithu, Petra Haberzettl, Nalinie S Wickramasinghe, Michael L Merchant, Bradford G Hill, James McCracken, Abhinav Agarwal, Susan Dougherty, Sharon A Gordon and 6 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

78 citing papers in PubMed, 124 citations in OpenAlex.

  1. Article
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  4. Science advances · 2026
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  19. Peroxisome proliferator-activated receptor-α (PPARα) regulates wound healing and mitochondrial metabolism in the cornea.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  20. Article

18 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

16 authors at 1 institution in 1 country.

Elena VladykovskayaDiabetes and Obesity Center, University of Louisville, Louisville, Kentucky 40202, USA.
Srinivas D Sithu
Petra Haberzettl
Nalinie S Wickramasinghe
Michael L Merchant
Bradford G Hill
James McCracken
Abhinav Agarwal
Susan Dougherty
Sharon A Gordon
Dale A Schuschke
Oleg A Barski
Timothy O'Toole
Stanley E D'Souza
Aruni Bhatnagar
Sanjay Srivastava
University of Louisville · US

Funding

STEM CELLS AND DIABETIC CARDIOMYOPATHY PROJ 2 2009P20RR024489 · NCRR · UNIVERSITY OF LOUISVILLE · PI BHATNAGAR, ARUNI · 2008 to 2011
$10.0M
TOXICITY OF 4-HYDROXYALKENALS IN HEARTR01HL055477 · NHLBI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI BHATNAGAR, ARUNI · 1997 to 2015
$4.4M
CARDIAC METABOLISM OF ENALSR01HL059378 · NHLBI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI BHATNAGAR, ARUNI · 1998 to 2011
$3.3M
Atherogenic Mechanisms of ArsenicR01ES017260 · NIEHS · UNIVERSITY OF LOUISVILLE · PI SRIVASTAVA, SANJAY · 2009 to 2013
$1.6M
Atherogenic mechanism of lipid peroxidation-derived aldehydesR01HL095593 · NHLBI · UNIVERSITY OF LOUISVILLE · PI SRIVASTAVA, SANJAY · 2010 to 2013
$1.5M
NCRR NIH HHS P20 RR024489NCRR NIH HHS RR 24489NHLBI NIH HHS HL55477NHLBI NIH HHS HL59378NHLBI NIH HHS HL95593NHLBI NIH HHS R01 HL055477NHLBI NIH HHS R01 HL059378NHLBI NIH HHS R01 HL095593NIEHS NIH HHS ES17260NIEHS NIH HHS R01 ES017260
6 · The paper itself

Abstract

Lipid peroxidation products, such as 4-hydroxy-trans-2-nonenal (HNE), cause endothelial activation, and they increase the adhesion of the endothelium to circulating leukocytes. Nevertheless, the mechanisms underlying these effects remain unclear. We observed that in HNE-treated human umbilical vein endothelial cells, some of the protein-HNE adducts colocalize with the endoplasmic reticulum (ER) and that HNE forms covalent adducts with several ER chaperones that assist in protein folding. We also found that at concentrations that did not induce apoptosis or necrosis, HNE activated the unfolded protein response, leading to an increase in XBP-1 splicing, phosphorylation of protein kinase-like ER kinase and eukaryotic translation initiation factor 2α, and the induction of ATF3 and ATF4. This increase in eukaryotic translation initiation factor 2α phosphorylation was prevented by transfection with protein kinase-like ER kinase siRNA. Treatment with HNE increased the expression of the ER chaperones, GRP78 and HERP. Exposure to HNE led to a depletion of reduced glutathione and an increase in the production of reactive oxygen species (ROS); however, glutathione depletion and ROS production by tert-butyl-hydroperoxide did not trigger the unfolded protein response. Pretreatment with a chemical chaperone, phenylbutyric acid, or adenoviral transfection with ATF6 attenuated HNE-induced monocyte adhesion and IL-8 induction. Moreover, phenylbutyric acid and taurine-conjugated ursodeoxycholic acid attenuated HNE-induced leukocyte rolling and their firm adhesion to the endothelium in rat cremaster muscle. These data suggest that endothelial activation by HNE is mediated in part by ER stress, induced by mechanisms independent of ROS production or glutathione depletion. The induction of ER stress may be a significant cause of vascular inflammation induced by products of oxidized lipids.

Indexed as

Lipid PeroxidationAldehydesAmino Acid SequenceAnimalsEndoplasmic Reticulum Chaperone BiPEndoplasmic Reticulum StressEndotheliumGlutathioneHumansHuman Umbilical Vein Endothelial CellsMolecular Sequence DataProteinsProtein TransportUnfolded Protein Response4-hydroxy-2-nonenalAldehydesEndoplasmic Reticulum Chaperone BiPGlutathioneHSPA5 protein, humanProteins

Identifiers

PMID22228760
PMCPMC3322871
OpenAlexW2045197807

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.