Evidence map›Paper›PMID 22235999›Full record

ArticleClinical and experimental immunology2012

Immune complexes and late complement proteins trigger activation of Syk tyrosine kinase in human CD4(+) T cells.

A K Chauhan, T L Moore

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 27 citations in OpenAlex.

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  8. FcγRIIIa Signaling Modulates Endosomal TLR Responses in Human CD4Journal of immunology (Baltimore, Md. : 1950) · 2017
    Article
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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

2 authors at 1 institution in 1 country.

A K ChauhanDivision of Adult and Pediatric Rheumatology, Saint Louis University School of Medicine, Saint Louis, MO 63104, USA. chauhana@slu.edu
T L Moore
Saint Louis University · US

Funding

T cell Activation by Immune Complexes and complement in AutoimmunityR01AI098114 · NIAID · SAINT LOUIS UNIVERSITY · PI CHAUHAN, ANIL CHAUHAN, MOORE, TERRY LYNN · 2012 to 2016
$1.9M
NIAID NIH HHS R01 AI098114
6 · The paper itself

Abstract

In systemic lupus erythematosus (SLE), the autoantibodies that form immune complexes (ICs) trigger activation of the complement system. This results in the formation of membrane attack complex (MAC) on cell membrane and the soluble terminal complement complex (TCC). Hyperactive T cell responses are hallmark of SLE pathogenesis. How complement activation influences the T cell responses in SLE is not fully understood. We observed that aggregated human γ-globulin (AHG) bound to a subset of CD4(+) T cells in peripheral blood mononuclear cells and this population increased in the SLE patients. Human naive CD4(+) T cells, when treated with purified ICs and TCC, triggered recruitment of the FcRγ chain with the membrane receptor and co-localized with phosphorylated Syk. These events were also associated with aggregation of membrane rafts. Thus, results presented suggest a role for ICs and complement in the activation of Syk in CD4(+) T cells. Thus, we propose that the shift in signalling from ζ-chain-ZAP70 to FcRγ chain-Syk observed in T cells of SLE patients is triggered by ICs and complement. These results demonstrate a link among ICs, complement activation and phosphorylation of Syk in CD4(+) T cells.

Indexed as

AdolescentAdultAntigen-Antibody ComplexAutoantibodiesCD4-Positive T-LymphocytesCells, CulturedComplement Membrane Attack ComplexEnzyme ActivationFemalegamma-GlobulinsHumansIntracellular Signaling Peptides and ProteinsJurkat CellsLupus Erythematosus, SystemicMaleMembrane MicrodomainsAntigen-Antibody ComplexAutoantibodiesComplement Membrane Attack Complexgamma-GlobulinsIntracellular Signaling Peptides and ProteinsProtein-Tyrosine KinasesReceptors, IgGSyk KinaseSYK protein, humanZAP70 protein, humanZAP-70 Protein-Tyrosine Kinase

Identifiers

PMID22235999
PMCPMC3278689
OpenAlexW1561374785

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.