Evidence map›Paper›PMID 21135124›Full record

ArticleMolecular and cellular biology2011

Tumor necrosis factor alpha and inflammation disrupt the polarity complex in intestinal epithelial cells by a posttranslational mechanism.

Anastasia Mashukova, Flavia A Wald, Pedro J Salas

Open access · bronzeAbstract read
In one paragraph

Article in Molecular and cellular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.3field-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

45 citing papers in PubMed, 82 citations in OpenAlex.

  1. Review
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  10. Polarity scaffolds signaling in epithelial cell permeability.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2021
    Review
  11. Article
  12. Review
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  19. BioMed research international · 2018
    Review
  20. Article
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

3 authors at 1 institution in 1 country.

Anastasia MashukovaUniversity of Miami, Miller School of Medicine, Department of Cell Biology, Miami, FL 33186, USA.
Flavia A Wald
Pedro J Salas
University of Miami · US

Funding

Apical Polarity Complex Signaling in Inflammation in Intestinal EpitheliaR01DK076652 · NIDDK · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI SALAS, PEDRO · 2007 to 2015
$2.9M
Cytoskeletal rescue of polarized atypical PKC in intestinal junctions under inflaR01DK087359 · NIDDK · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI SALAS, PEDRO · 2010 to 2013
$1.3M
NIDDK NIH HHS R01 DK076652NIDDK NIH HHS R01-DK076652NIDDK NIH HHS R01 DK087359NIDDK NIH HHS R01-DK087359
6 · The paper itself

Abstract

Inflammatory processes disrupt the barrier function in epithelia. Increased permeability often leads to chronic of inflammation. Important among other cytokines, tumor necrosis factor alpha (TNF-α) initiates an NF-κB-mediated response that leads to upregulation of myosin light chain kinase (MLCK), a hallmark of the pathogenesis of inflammatory bowel disease. Here, we found that two components of the evolutionarily conserved organizer of tight junctions and polarity, the polarity complex (atypical protein kinase C [aPKC]-PAR6-PAR3) were downregulated by TNF-α signaling in intestinal epithelial cells and also in vivo during intestinal inflammation. Decreases in aPKC levels were due to decreased chaperoning activity of Hsp70 proteins, with failure of the aPKC rescue machinery, and these effects were rescued by NF-κB inhibition. Comparable downregulation of aPKC shRNA phenocopied effects of TNF-α signaling, including apical nonmuscle myosin II accumulation and myosin light chain phosphorylation. These effects, including ZO-1 downregulation, were rescued by overexpression of constitutively active aPKC. We conclude that this novel mechanism is a complementary effector pathway for TNF-α signaling.

Indexed as

Adaptor Proteins, Signal TransducingAnimalsBase SequenceCaco-2 CellsCell Cycle ProteinsCell PolarityHSC70 Heat-Shock ProteinsHSP70 Heat-Shock ProteinsHumansInflammationInflammatory Bowel DiseasesIntestinal MucosaMembrane ProteinsMiceMice, KnockoutMolecular Motor ProteinsAdaptor Proteins, Signal TransducingCell Cycle ProteinsHSC70 Heat-Shock ProteinsHSP70 Heat-Shock ProteinsHSPA8 protein, humanMembrane ProteinsMolecular Motor ProteinsMultiprotein ComplexesMYH9 protein, humanMyosin Heavy ChainsPARD3 protein, humanPARD6A protein, humanPKC-3 proteinProtein Kinase CRNA, Small InterferingTumor Necrosis Factor-alpha

Identifiers

PMID21135124
PMCPMC3028658
OpenAlexW2170597468

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.