Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
|
pubmed:dateCreated |
1996-9-16
|
pubmed:abstractText |
Itk is a T cell protein tyrosine kinase (PTK) that, along with Btk and Tec, belongs to a family of cytoplasmic PTKs with N-terminal pleckstrin homology domains. Btk plays a critical role in B lymphocyte development. To determine whether Itk has an analogous role in T lymphocytes, we used gene targeting to prepare mice lacking expression of Itk. Such animals had decreased numbers of mature thymocytes, an effect most clearly observed in mice expressing T cell receptor (TCR) transgenes. Mature T cells from Itk-deficient mice had reduced proliferative responses to allogeneic MHC stimulation and to anti-TCR cross-linking, but responded normally to stimulation with phorbol ester plus ionomycin or with IL-2. These results provide genetic evidence that Itk is involved in T cell development and also suggest that Itk has an important role in proximal events in TCR-mediated signaling pathways.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
1074-7613
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
3
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
757-69
|
pubmed:dateRevised |
2009-11-19
|
pubmed:meshHeading |
pubmed-meshheading:8777721-Amino Acid Sequence,
pubmed-meshheading:8777721-Animals,
pubmed-meshheading:8777721-Base Sequence,
pubmed-meshheading:8777721-Cell Differentiation,
pubmed-meshheading:8777721-Immunophenotyping,
pubmed-meshheading:8777721-Mice,
pubmed-meshheading:8777721-Mice, Mutant Strains,
pubmed-meshheading:8777721-Mice, Transgenic,
pubmed-meshheading:8777721-Molecular Sequence Data,
pubmed-meshheading:8777721-Protein-Tyrosine Kinases,
pubmed-meshheading:8777721-Receptors, Antigen, T-Cell,
pubmed-meshheading:8777721-Signal Transduction,
pubmed-meshheading:8777721-T-Lymphocytes
|
pubmed:year |
1995
|
pubmed:articleTitle |
Altered T cell receptor signaling and disrupted T cell development in mice lacking Itk.
|
pubmed:affiliation |
Department of Microbiology and Immunology, University of California, San Francisco 94143-0414, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|