Evidence map›Paper›PMID 19123268›Full record

ArticleExperimental cell research2009

Expression of RAC2 in endothelial cells is required for the postnatal neovascular response.

Pradip De, Qiong Peng, Dmitry O Traktuev, Dmitry O Traktuevc, Weiming Li, Mervin C Yoder, Keith L March, Donald L Durden

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Experimental cell research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.1field-weighted citation impact, top 47% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

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4 · The record

Corrections and comments

  • Erratum issued
    Traktuevc, Dmitry O [corrected to Traktuev, Dmitry O]
5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Pradip DeDepartment of Pediatrics, Aflac Cancer Center and Blood Disorders Service, Emory University School of Medicine, Atlanta, GA 30322, USA.
Qiong Peng
Dmitry O Traktuev
Dmitry O Traktuevc
Weiming Li
Mervin C Yoder
Keith L March
Donald L Durden
Center for Cancer and Blood Disorders · USIndiana University School of MedicineEmory University · USIndiana University – Purdue University Indianapolis · US

Funding

Vascular targeted pan PI-3kinase inhibitor prodrug, SF1126 for glioma therapy.R56CA094233 · NCI · EMORY UNIVERSITY · PI DURDEN, DONALD · 2008 to 2008
$224k
NCI NIH HHS R56 CA094233NCI NIH HHS R56CA94233
6 · The paper itself

Abstract

Herein, we describe an obligate role for the hematopoietic specific GTPase, RAC2 in endothelial integrin signaling and the postnatal neovascularization response in vivo. Using a Rac2 knockout mouse model, we discovered that despite the presence of both RAC1 and RAC2 protein in endothelial cells, RAC2 is obligately required for the postnatal neovascular response and alphavbeta3/ alpha4beta1/alpha5beta1 integrin-directed migration on vitronectin, H296 and CH271, fibronectin fragments, respectively. The molecular basis for RAC2 specificity was explored. A genetic analysis of Syk -/+ or Syk-/+;Rac2 -/+ mice revealed that SYK kinase is required for the integrin induced activation of RAC2. The analysis of endothelial cells from Rac2-/+ versus Syk-/+;Rac2-/+ mice provided genetic evidence that SYK-RAC2 signaling axis regulates integrin (alphavbeta3, alpha4beta1 and alpha5beta1) dependent migration. Our results provide evidence that a specific region of the nonreceptor protein tyrosine kinase, SYK, the B linker region containing Y342 and Y346 is required for SYK's regulation of RAC2 and integrin dependent migration. Moreover, the capacity of mice to vascularize the ischemic hindlimb following femoral artery ligation or matrigel plugs was markedly reduced in mice homozygous deficient for the Rac2 gene. These findings identify a novel signaling axis for the induction and potential modulation of postnatal angiogenesis.

Indexed as

AnimalsCell MovementChlorocebus aethiopsCOS CellsEndothelial CellsFibronectinsGene ExpressionHindlimbHumansIntegrin alpha4beta1Integrin alphaVbeta3Intracellular Signaling Peptides and ProteinsMiceMice, Inbred C57BLMice, KnockoutNeovascularization, PhysiologicFibronectinsIntegrin alpha4beta1Integrin alphaVbeta3Intracellular Signaling Peptides and ProteinsNeuropeptidesProtein-Tyrosine Kinasesrac1 GTP-Binding ProteinRac1 protein, mouseRAC2 GTP-Binding Proteinrac GTP-Binding ProteinsRNA, Small InterferingSyk KinaseSYK protein, humanSyk protein, mouseVitronectin

Identifiers

PMID19123268
PMCPMC2767303
OpenAlexW1965784559

What OpenQuestion holds

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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.