Evidence map›Paper›PMID 24338688›Full record

ArticleThe Journal of biological chemistry2014

Vascular endothelial tight junctions and barrier function are disrupted by 15(S)-hydroxyeicosatetraenoic acid partly via protein kinase C ε-mediated zona occludens-1 phosphorylation at threonine 770/772.

Rima Chattopadhyay, Elena Dyukova, Nikhlesh K Singh, Motoi Ohba, James A Mobley, Gadiparthi N Rao

RetractedErratum issuedOpen access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
2.8field-weighted citation impact, top 11% 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

47 citing papers in PubMed, 63 citations in OpenAlex.

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  12. Occludin: a gatekeeper of brain Infection by HIV-1.Fluids and barriers of the CNS · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Rima ChattopadhyayFrom the Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee 38163.
Elena Dyukova
Nikhlesh K Singh
Motoi Ohba
James A Mobley
Gadiparthi N Rao
University of Tennessee Health Science Center · USShowa University · JPUniversity of Alabama at Birmingham · US

Funding

XRAY CRYSTALLOGRAPHYP30CA013148 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Robert S Welner · 1985 to 2026
$165.9M
Non-COX Arachidonic Acid Metabolites and AngiogenesisR01HL074860 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI RAO, GADIPARTHI N · 2004 to 2020
$5.9M
NCI NIH HHS P30 CA013148NHLBI NIH HHS HL074860NHLBI NIH HHS R01 HL074860
6 · The paper itself

Abstract

Disruption of tight junctions (TJs) perturbs endothelial barrier function and promotes inflammation. Previously, we have shown that 15(S)-hydroxyeicosatetraenoic acid (15(S)-HETE), the major 15-lipoxygenase 1 (15-LO1) metabolite of arachidonic acid, by stimulating zona occludens (ZO)-2 tyrosine phosphorylation and its dissociation from claudins 1/5, induces endothelial TJ disruption and its barrier dysfunction. Here, we have studied the role of serine/threonine phosphorylation of TJ proteins in 15(S)-HETE-induced endothelial TJ disruption and its barrier dysfunction. We found that 15(S)-HETE enhances ZO-1 phosphorylation at Thr-770/772 residues via PKCε-mediated MEK1-ERK1/2 activation, causing ZO-1 dissociation from occludin, disrupting endothelial TJs and its barrier function, and promoting monocyte transmigration; these effects were reversed by T770A/T772A mutations. In the arteries of WT mice ex vivo, 15(S)-HETE also induced ZO-1 phosphorylation and endothelial TJ disruption in a PKCε and MEK1-ERK1/2-dependent manner. In line with these observations, in WT mice high fat diet feeding induced 12/15-lipoxygenase (12/15-LO) expression in the endothelium and caused disruption of its TJs and barrier function. However, in 12/15-LO(-/-) mice, high fat diet feeding did not cause disruption of endothelial TJs and barrier function. These observations suggest that the 12/15-LO-12/15(S)-HETE axis, in addition to tyrosine phosphorylation of ZO-2, also stimulates threonine phosphorylation of ZO-1 in the mediation of endothelial TJ disruption and its barrier dysfunction.

Indexed as

AnimalsEicosanoic AcidsEndothelial CellsExtracellular Signal-Regulated MAP KinasesHumansHuman Umbilical Vein Endothelial CellsLipoxygenaseMAP Kinase Signaling SystemMiceMice, KnockoutPhosphorylationProtein Kinase C-epsilonThreonineTight JunctionsZonula Occludens-1 ProteinZonula Occludens-2 Protein15-hydroxyeicosanoic acidEicosanoic AcidsExtracellular Signal-Regulated MAP KinasesLipoxygenasePRKCE protein, humanPrkce protein, mouseProtein Kinase C-epsilonThreonineTJP1 protein, humanTjp1 protein, mouseTJP2 protein, humanTjp2 protein, mouseZonula Occludens-1 ProteinZonula Occludens-2 ProteinEicosanoidEndothelial CellLipoxygenase PathwaySignal TransductionTight Junctions

Identifiers

PMID24338688
PMCPMC3916520
OpenAlexW2081215204

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.