Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1999-6-30
pubmed:abstractText
The protein-tyrosine kinase Syk participates in signal transduction pathways downstream from multiple immune recognition receptors. Recent evidence indicates that Syk is also functionally coupled to cell surface integrins, which mediate interactions between the actin cytoskeleton and extracellular matrix proteins. The interactions of undifferentiated, promonocytic HL60 or U937 cells with fibronectin or anti-beta1 integrin antibodies leads to an apparent activation and tyrosine phosphorylation of Syk that is independent of tight cellular adhesion and spreading. In response to fibronectin or anti-beta1 integrin antibodies, beta1 integrins become associated with a complex of proteins that include the Lyn protein tyrosine kinase and endogenous kinase substrates of 29 and 75-80 kDa. Lyn becomes transiently activated following integrin engagement and co-localizes with the actin cytoskeleton. These studies suggest a major role for Lyn in coupling beta1 integrins to the activation of Syk.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1426-34
pubmed:dateRevised
2011-11-2
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
The engagement of beta1 integrins on promonocytic cells promotes phosphorylation of Syk and formation of a protein complex containing Lyn and beta1 integrin.
pubmed:affiliation
Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette 47907, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't