Linked Life Data

9174593

Source:http://linkedlifedata.com/resource/pubmed/id/9174593

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1997-6-30
pubmed:abstractText
The chemokine RANTES is a potent chemoattractant and activator of T lymphocytes. Mechanisms underlying the RANTES-induced activation of T lymphocytes leading to adhesion and migration have not been fully analyzed. We investigate here the function of RANTES in the regulation of T cell adhesion, specifically the induction of homotypic aggregation. RANTES induced the expression of many important cell surface adhesion and activation receptors in a normal human T cell clone and peripheral blood T lymphocytes, including members of the beta 1 and beta 2 integrin family, CD44, CD50, and CD28. Up-regulation of these markers correlated with RANTES-stimulated homotypic adhesion of T cells. This homotypic aggregation event was RANTES dose-dependent, prolonged, and pertussis toxin-independent, but herbimycin A-sensitive, suggesting that it involves signaling through alternative (G alpha i protein-independent) pathways. Using specific monoclonal antibodies, the homotypic aggregation event was shown to be lymphocyte function-associated antigen-1 (LFA-1)-dependent, with no observable interaction through alpha 4 or beta 1 integrins. Intercellular adhesion molecule-3 (ICAM-3) and possibly ICAM-1 participate as LFA-1 ligands. Additionally, RANTES phosphorylated the beta chain of LFA-1 1-2 min following stimulation. These results imply a specific role for the chemokine RANTES in T cell activation and intercellular adhesion.
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
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1061-8
pubmed:dateRevised
2008-6-13
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
RANTES stimulation of T lymphocyte adhesion and activation: role for LFA-1 and ICAM-3.
pubmed:affiliation
Department of Pathology, Digestive Disease Center, Stanford University School of Medicine CA, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't