Evidence map›Paper›PMID 24223520›Full record

ArticlePLoS biology2013

N-wasp is essential for the negative regulation of B cell receptor signaling.

Chaohong Liu, Xiaoming Bai, Junfeng Wu, Shruti Sharma, Arpita Upadhyaya, Carin I M Dahlberg, Lisa S Westerberg, Scott B Snapper, Xiaodong Zhao, Wenxia Song

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

45 citing papers in PubMed, 78 citations in OpenAlex.

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  16. The role of actin and myosin in antigen extraction by B lymphocytes.Seminars in cell & developmental biology · 2020
    Review
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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

10 authors at 6 institutions in 3 countries.

Chaohong LiuDepartment of Cell Biology & Molecular Genetics, University of Maryland, College Park, Maryland, United States of America.
Xiaoming Bai
Junfeng Wu
Shruti Sharma
Arpita Upadhyaya
Carin I M Dahlberg
Lisa S Westerberg
Scott B Snapper
Xiaodong Zhao
Wenxia Song
Chongqing Medical University · CNKarolinska Institutet · SEUniversity of Maryland, College Park · USChildren's Hospital of Chongqing Medical University · CNHarvard University · USUniversity of Massachusetts Chan Medical School · US

Funding

The actin cytoskeleton in Beta cell activationR01AI059617 · NIAID · UNIV OF MARYLAND, COLLEGE PARK · PI SONG, WENXIA · 2006 to 2009
$1.0M
NIAID NIH HHS AI059617NIAID NIH HHS R01 AI059617
6 · The paper itself

Abstract

Negative regulation of receptor signaling is essential for controlling cell activation and differentiation. In B-lymphocytes, the down-regulation of B-cell antigen receptor (BCR) signaling is critical for suppressing the activation of self-reactive B cells; however, the mechanism underlying the negative regulation of signaling remains elusive. Using genetically manipulated mouse models and total internal reflection fluorescence microscopy, we demonstrate that neuronal Wiskott-Aldrich syndrome protein (N-WASP), which is coexpressed with WASP in all immune cells, is a critical negative regulator of B-cell signaling. B-cell-specific N-WASP gene deletion causes enhanced and prolonged BCR signaling and elevated levels of autoantibodies in the mouse serum. The increased signaling in N-WASP knockout B cells is concurrent with increased accumulation of F-actin at the B-cell surface, enhanced B-cell spreading on the antigen-presenting membrane, delayed B-cell contraction, inhibition in the merger of signaling active BCR microclusters into signaling inactive central clusters, and a blockage of BCR internalization. Upon BCR activation, WASP is activated first, followed by N-WASP in mouse and human primary B cells. The activation of N-WASP is suppressed by Bruton's tyrosine kinase-induced WASP activation, and is restored by the activation of SH2 domain-containing inositol 5-phosphatase that inhibits WASP activation. Our results reveal a new mechanism for the negative regulation of BCR signaling and broadly suggest an actin-mediated mechanism for signaling down-regulation.

Indexed as

Signal TransductionActinsAnimalsAntibodies, AntinuclearAntigensAutoantibodiesB-LymphocytesCells, CulturedHumansLeukocytes, MononuclearMiceMice, 129 StrainMice, Inbred C57BLMice, Inbred CBAMice, KnockoutProtein TransportActinsAntibodies, AntinuclearAntigensAutoantibodiesReceptors, Antigen, B-CellWasl protein, mouseWas protein, mouseWiskott-Aldrich Syndrome ProteinWiskott-Aldrich Syndrome Protein, Neuronal

Identifiers

PMID24223520
PMCPMC3818172
OpenAlexW2143601035

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.