Evidence map›Paper›PMID 21212279›Full record

ArticleThe Journal of biological chemistry2011

Absence of Tec family kinases interleukin-2 inducible T cell kinase (Itk) and Bruton's tyrosine kinase (Btk) severely impairs Fc epsilonRI-dependent mast cell responses.

Archana S Iyer, J Luis Morales, Weishan Huang, Folake Ojo, Gang Ning, Elizabeth Wills, Joel D Baines, Avery August

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

29 citing papers in PubMed, 43 citations in OpenAlex.

  1. Autoallergy and what the Allergist Needs to know.Current allergy and asthma reports · 2025
    Review
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  19. Signal transduction and chemotaxis in mast cells.European journal of pharmacology · 2016
    Review
  20. Article
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 3 institutions in 1 country.

Archana S IyerCenter for Molecular Immunology & Infectious Disease and Department of Veterinary & Biomedical Sciences, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
J Luis Morales
Weishan Huang
Folake Ojo
Gang Ning
Elizabeth Wills
Joel D Baines
Avery August
Center for Molecular Medicine and Immunology · USCornell University · USPennsylvania State University · US

Funding

Nucleocapsid Envelopment Herpes Simplex Virus-1R01AI052341 · NIAID · LOUISIANA STATE UNIV A&M COL BATON ROUGE · PI BAINES, JOEL D. · 2003 to 2013
$3.6M
Tyrosine Kinase ITK in Experimental Allergic AsthmaR01AI051626 · NIAID · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI AUGUST, AVERY · 2003 to 2012
$3.6M
ITK Mast Cells and Allergic Airway ResponsesR01AI065566 · NIAID · PENNSYLVANIA STATE UNIVERSITY, THE · PI AUGUST, AVERY · 2007 to 2011
$1.5M
ITK Mast Cells and Allergic Airway ResponsesR56AI065566 · NIAID · PENNSYLVANIA STATE UNIVERSITY, THE · PI AUGUST, AVERY · 2006 to 2006
$345k
NIAID NIH HHS AI051626NIAID NIH HHS AI051626-S1NIAID NIH HHS AI065566NIAID NIH HHS R01 AI051626NIAID NIH HHS R01 AI052341NIAID NIH HHS R01 AI065566NIAID NIH HHS R56 AI065566
6 · The paper itself

Abstract

Mast cells are critical effector cells in the pathophysiology of allergic asthma and other IgE-mediated diseases. The Tec family of tyrosine kinases Itk and Btk serve as critical signal amplifiers downstream of antigen receptors. Although both kinases are expressed and activated in mast cells following FcεRI stimulation, their individual contributions are not clear. To determine whether these kinases play unique and/or complementary roles in FcεRI signaling and mast cell function, we generated Itk and Btk double knock-out mice. Analyses of these mice show decreased mast cell granularity and impaired passive systemic anaphylaxis responses. This impaired response is accompanied by a significant elevation in serum IgE in Itk/Btk double knock-out mice. In vitro analyses of bone marrow-derived mast cells (BMMCs) indicated that Itk/Btk double knock-out BMMCs are defective in degranulation and cytokine secretion responses downstream to FcεRI activation. These responses were accompanied by a significant reduction in PLCγ2 phosphorylation and severely impaired calcium responses in these cells. This defect also results in altered NFAT1 nuclear localization in double knock-out BMMCs. Network analysis suggests that although they may share substrates, Itk plays both positive and negative roles, while Btk primarily plays a positive role in mast cell FcεRI-induced cytokine secretion.

Indexed as

Active Transport, Cell NucleusAgammaglobulinaemia Tyrosine KinaseAnimalsBone Marrow CellsCell NucleusCytokinesMast CellsMiceMice, KnockoutNFATC Transcription FactorsProtein-Tyrosine KinasesReceptors, IgEAgammaglobulinaemia Tyrosine KinaseBtk protein, mouseCytokinesemt protein-tyrosine kinaseNFATC Transcription FactorsProtein-Tyrosine KinasesReceptors, IgE

Identifiers

PMID21212279
PMCPMC3059023
OpenAlexW2059271361

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.