Evidence map›Paper›PMID 21788407›Full record

ArticleThe Journal of experimental medicine2011

Cortactin deficiency is associated with reduced neutrophil recruitment but increased vascular permeability in vivo.

Michael Schnoor, Frank P L Lai, Alexander Zarbock, Ruth Kläver, Christian Polaschegg, Dörte Schulte, Herbert A Weich, J Margit Oelkers, Klemens Rottner, Dietmar Vestweber

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
6.1field-weighted citation impact, top 2% 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

90 citing papers in PubMed, 157 citations in OpenAlex.

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  18. Cortactin loss protects against hemin-induced acute lung injury in sickle cell disease.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
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  20. Article

30 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

10 authors at 3 institutions in 2 countries.

Michael SchnoorMax Planck Institute for Molecular Biomedicine, D 48149 Münster, Germany.
Frank P L Lai
Alexander Zarbock
Ruth Kläver
Christian Polaschegg
Dörte Schulte
Herbert A Weich
J Margit Oelkers
Klemens Rottner
Dietmar Vestweber
Max Planck Institute for Molecular Biomedicine · DECytoskeleton (United States) · USUniversity of Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neutrophil extravasation and the regulation of vascular permeability require dynamic actin rearrangements in the endothelium. In this study, we analyzed in vivo whether these processes require the function of the actin nucleation-promoting factor cortactin. Basal vascular permeability for high molecular weight substances was enhanced in cortactin-deficient mice. Despite this leakiness, neutrophil extravasation in the tumor necrosis factor-stimulated cremaster was inhibited by the loss of cortactin. The permeability defect was caused by reduced levels of activated Rap1 (Ras-related protein 1) in endothelial cells and could be rescued by activating Rap1 via the guanosine triphosphatase (GTPase) exchange factor EPAC (exchange protein directly activated by cAMP). The defect in neutrophil extravasation was caused by enhanced rolling velocity and reduced adhesion in postcapillary venules. Impaired rolling interactions were linked to contributions of β(2)-integrin ligands, and firm adhesion was compromised by reduced ICAM-1 (intercellular adhesion molecule 1) clustering around neutrophils. A signaling process known to be critical for the formation of ICAM-1-enriched contact areas and for transendothelial migration, the ICAM-1-mediated activation of the GTPase RhoG was blocked in cortactin-deficient endothelial cells. Our results represent the first physiological evidence that cortactin is crucial for orchestrating the molecular events leading to proper endothelial barrier function and leukocyte recruitment in vivo.

Indexed as

ActinsAnimalsBlotting, WesternCapillary PermeabilityCell AdhesionCortactinEndothelial CellsGenotypeGTP PhosphohydrolasesGuanine Nucleotide Exchange FactorsHumansIntercellular Adhesion Molecule-1MiceMice, Inbred C57BLMice, Mutant StrainsMicroscopy, FluorescenceActinsCortactinEpac protein, mouseGTP PhosphohydrolasesGuanine Nucleotide Exchange FactorsIntercellular Adhesion Molecule-1Oligonucleotidesrap1 GTP-Binding ProteinsRhog protein, mouserho GTP-Binding ProteinsRNA, Small Interfering

Identifiers

PMID21788407
PMCPMC3149227
OpenAlexW2152034648

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.