Evidence map›Paper›PMID 15385472›Full record

ArticleInfection and immunity2004

Escherichia coli cytotoxic necrotizing factor 1 inhibits intestinal epithelial wound healing in vitro after mechanical injury.

Patrick Brest, Laurent Turchi, Gaëlle Le'Negrate, Frédérick Berto, Chimène Moreilhon, Bernard Mari, Gilles Ponzio, Paul Hofman

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 25% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Effects of theInternational journal of molecular sciences · 2021
    Pooled it
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  3. Article
  4. Article
  5. 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

8 authors at 2 institutions in 1 country.

Patrick BrestEquipe INSERM 0215, Faculté de Médecine, Nice, France.
Laurent Turchi
Gaëlle Le'Negrate
Frédérick Berto
Chimène Moreilhon
Bernard Mari
Gilles Ponzio
Paul Hofman
Inserm · FRInstitut de Pharmacologie Moléculaire et Cellulaire · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cytotoxic necrotizing factor type 1 (CNF1) from Escherichia coli activates the small GTP-binding proteins of the Rho family (Rho, Rac, and Cdc42) by catalyzing their deamidation at a specific glutamine residue. Since RhoA, Rac, and Cdc42 play a pivotal role in cell migration during the early phase of wound repair, we investigated whether CNF1 was able to interfere with wound healing in intestinal epithelial monolayers (T84 cells). After mechanical injury, we found that CNF1 blocks epithelial wound repair within 48 h. This effect was characterized by cell elongation and filopodium formation on the leading edge, in association with permanent phosphorylation of the focal adhesion kinase (FAK) via Rho activation. Moreover, inhibition of Rho kinase with Y-27632 decreased CNF1-mediated permanent FAK phosphorylation, leading to complete restitution of wound repair within 24 h. In addition, we found that CNF1 induced upregulation of mitogen-activated protein kinases (MAPK) activation. Moreover, activation of Rac and MAPK by CNF1 increased matrix metalloproteinase 9 expression in wounded T84 monolayers. Taken together, these results provide evidence that CNF1 strongly impairs intestinal epithelial wound healing.

Indexed as

Escherichia coliEscherichia coli ProteinsAmidesBacterial Toxinscdc42 GTP-Binding ProteinCell Line, TumorCytotoxinsEnzyme ActivationEpithelial CellsEpitheliumFocal Adhesion Kinase 1Focal Adhesion Protein-Tyrosine KinasesHumansIntestinesMatrix Metalloproteinase 9Mitogen-Activated Protein KinasesAmidesBacterial Toxinscdc42 GTP-Binding Proteincytotoxic necrotizing factor type 1CytotoxinsEscherichia coli ProteinsFocal Adhesion Kinase 1Focal Adhesion Protein-Tyrosine KinasesMatrix Metalloproteinase 9Mitogen-Activated Protein KinasesProtein-Tyrosine KinasesPTK2 protein, humanPyridinesrac GTP-Binding ProteinsrhoA GTP-Binding ProteinY 27632

Identifiers

PMID15385472
PMCPMC517525
OpenAlexW2147278052

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.