Evidence map›Paper›PMID 12234921›Full record

ArticleThe EMBO journal2002

Pleiotropic defects in TCR signaling in a Vav-1-null Jurkat T-cell line.

Youjia Cao, Erin M Janssen, Andrew W Duncan, Amnon Altman, Daniel D Billadeau, Robert T Abraham

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

35 citing papers in PubMed, 94 citations in OpenAlex.

  1. Vav2 lacks CaJournal of cell science · 2020
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  5. Activating mutations and translocations in the guanine exchange factor VAV1 in peripheral T-cell lymphomas.Proceedings of the National Academy of Sciences of the United States of America · 2017
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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

6 authors at 1 institution in 1 country.

Youjia CaoDepartment of Pharmacology and Cancer Biology and Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA.
Erin M Janssen
Andrew W Duncan
Amnon Altman
Daniel D Billadeau
Robert T Abraham
Duke Medical Center · US

Funding

FUNCTION AND REGULATION OF VAV IN LYMPHOCYTE ACTIVATIONR01GM050819 · NIGMS · LA JOLLA INST FOR ALLERGY &IMMUNOLGY · PI ALTMAN, AMNON · 1994 to 2005
$2.2M
SIGNAL TRANSDUCTION FROM THE T-CELL ANTIGEN RECEPTORR01GM047286 · NIGMS · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI ABRAHAM, ROBERT T · 1992 to 2003
$1.3M
NIGMS NIH HHS GM47286NIGMS NIH HHS GM50819NIGMS NIH HHS R01 GM047286NIGMS NIH HHS R01 GM050819
6 · The paper itself

Abstract

The Rac/Rho-specific guanine nucleotide exchange factor, Vav-1, is a key component of the T-cell antigen receptor (TCR)-linked signaling machinery. Here we have used somatic cell gene-targeting technology to generate a Vav-1-deficient Jurkat T-cell line. The J.Vav1 cell line exhibits dramatic defects in TCR-dependent interleukin (IL)-2 promoter activation, accompanied by significant reductions in the activities of the NFAT(IL-2), NFkappaB, AP-1 and REAP transcription factors that bind to the IL-2 promoter region. In contrast, loss of Vav-1 had variable effects on early TCR-stimulated signaling events. J.Vav1 cells display a selective defect in sustained Ca(2+) signaling during TCR stimulation, and complementation of this abnormality by exogenously introduced Vav-1 is dependent on the Vav-1 calponin homology domain. While JNK activation was severely impaired, the stimulation of Ras, ERK and protein kinase C-theta activities, as well as the mobilization of lipid rafts, appeared normal in the J.Vav1 cells. Finally, evidence is presented to suggest that the alternative Vav family members, Vav-2 and Vav-3, are activated during TCR ligation, and partially compensate for the loss of Vav-1 in Jurkat T cells.

Indexed as

Calcium SignalingCell Cycle ProteinsNuclear ProteinsAnimalsAntibodies, MonoclonalCalciumCell FractionationDNA-Binding ProteinsEnzyme ActivationGene TargetingGuanine Nucleotide Exchange FactorsHumansInterleukin-2IsoenzymesJNK Mitogen-Activated Protein KinasesJurkat CellsAntibodies, MonoclonalCalciumCell Cycle ProteinsDNA-Binding ProteinsGuanine Nucleotide Exchange FactorsInterleukin-2IsoenzymesJNK Mitogen-Activated Protein KinasesMitogen-Activated Protein KinasesNFATC Transcription FactorsNuclear ProteinsPRKCQ protein, humanPrkcq protein, mouseProtein Kinase CProtein Kinase C-thetaProto-Oncogene ProteinsProto-Oncogene Proteins c-vavReceptors, Antigen, T-CellTranscription Factor AP-1Transcription FactorsVAV1 protein, humanVav1 protein, mouseVAV3 protein, humanVav3 protein, mouse

Identifiers

PMID12234921
PMCPMC126295
OpenAlexW2006761223

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.