Evidence map›Paper›PMID 14610042›Full record

ArticleThe Journal of experimental medicine2003

The B cell antigen receptor controls integrin activity through Btk and PLCgamma2.

Marcel Spaargaren, Esther A Beuling, Mette L Rurup, Helen P Meijer, Melanie D Klok, Sabine Middendorp, Rudolf W Hendriks, Steven T Pals

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04178798 (Phase III Randomized Study to Investigate the Use of Acalabrutinib in the Treatment of Patients With Early Stage CLL With High Risk of Early Disease Progression), which is not on this map. Cited by 108 papers.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed
2.0field-weighted citation impact, top 14% 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.

NCT04178798 phase3completednot on this mapstarted 2019, after this paper: background citation

Phase III Randomized Study to Investigate the Use of Acalabrutinib in the Treatment of Patients With Early Stage CLL With High Risk of Early Disease Progression

TypeinterventionalSponsorPETHEMA FoundationRan2019 to 2024Enrolled22ConditionsChronic Lymphocytic Leukemia- Binet Staging SystemArmsAcalabrutinib 100 MG Oral Capsule
3 · Its place in the literature

Who cites it

108 citing papers in PubMed, 220 citations in OpenAlex.

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  13. Beyond relapses: How BTK inhibitors are shaping the future of progressive MS treatment.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
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48 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

8 authors at 2 institutions in 1 country.

Marcel SpaargarenDept. of Pathology, Academic Medical Center, Meibergdreef 9 1105 AZ Amsterdam, Netherlands. marcel.spaargaren@amc.uva.nl
Esther A Beuling
Mette L Rurup
Helen P Meijer
Melanie D Klok
Sabine Middendorp
Rudolf W Hendriks
Steven T Pals
Amsterdam UMC Location University of Amsterdam · NLErasmus MC · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Integrin-mediated adhesion and B cell antigen receptor (BCR) signaling play a critical role in B cell development and function, including antigen-specific B cell differentiation. Here we show that the BCR controls integrin alpha4beta1 (VLA-4)-mediated adhesion of B cells to vascular cell adhesion molecule-1 and fibronectin. Molecular dissection of the underlying signaling mechanism by a combined biochemical, pharmacological, and genetic approach demonstrates that this BCR-controlled integrin-mediated adhesion requires the (consecutive) activation of Lyn, Syk, phosphatidylinositol 3-kinase, Bruton's tyrosine kinase (Btk), phospholipase C (PLC)gamma2, IP3R-mediated Ca2+ release, and PKC. In contrast, activation of mitogen-activated protein kinase kinase (MEK) or extracellular signal-regulated kinase (ERK) is not required, and simultaneous activation of MEK, ERK, and PKB is not sufficient either. Furthermore, Btk is also involved in the control of integrin-mediated adhesion of preB cells. The control of integrin alpha4beta1-mediated B cell adhesion by the BCR involves cytoskeletal reorganization and integrin clustering. These results reveal a novel function for the BCR and Btk, i.e., regulation of integrin alpha4beta1 activity, thereby providing new insights into the control of B cell development and differentiation, as well as into the pathogenesis of the immunodeficiency disease X-linked agammaglobulineamia (XLA).

Indexed as

Agammaglobulinaemia Tyrosine KinaseAgammaglobulinemiaAnimalsB-LymphocytesCalciumCalcium-Binding ProteinsCell AdhesionDNA-Binding ProteinsHumansIntegrinsMiceMicrofilament ProteinsPhosphatidylinositol 3-KinasesPhospholipase C gammaProtein Kinase CProtein-Tyrosine KinasesAgammaglobulinaemia Tyrosine KinaseAIF1 protein, humanBTK protein, humanBtk protein, mouseCalciumCalcium-Binding ProteinsDNA-Binding ProteinsIntegrinsMicrofilament ProteinsPhosphatidylinositol 3-KinasesPhospholipase C gammaProtein Kinase CProtein-Tyrosine KinasesReceptors, Antigen, B-CellType C PhospholipasesVascular Cell Adhesion Molecule-1

Identifiers

PMID14610042
PMCPMC2194118
OpenAlexW2171644620

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

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.