Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2000-7-6
pubmed:abstractText
Interleukin-5 produced by Th2-type lymphocytes is involved in the pathogenesis of a number of hypereosinophilic disorders. We and others have identified clonal Th2 cells with abnormal surface phenotypes in peripheral blood of certain patients presenting the idiopathic hypereosinophilic syndrome. We took advantage of the CD3- CD4+ phenotype of our patients' T cells to determine the activation signals involved in their production of Th2 cytokines and expansion, independently of T cell receptor engagement. In vitro cocultures performed with dendritic cells demonstrated the critical role of co-stimulatory signalling through B.7/CD28 and LFA-3/CD2 pathways and the involvement of an autocrine IL2/IL2R loop in the activation of these Th2-type cells. The high-level spontaneous apoptosis displayed by these cells in vitro was drastically inhibited by IL2 and IFN-alpha. New therapeutic strategies could result from our observations. Indeed, the hypereosinophilic syndrome may represent an unexpected application of new immunomodulatory molecules such as CTLA4-Ig and anti-IL2R-alpha.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0035-2640
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
622-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
[Chronic hypereosinophilia: a model of Th2 disorders].
pubmed:affiliation
Service d'immunologie-hématologie-transfusion, Hôpital Erasme, Université libre de Bruxelles, Belgique.
pubmed:publicationType
Journal Article, English Abstract