Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1995-7-5
pubmed:abstractText
Administration of monoclonal antibodies to CD3 triggers acute and massive release of several cytokines, including tumor necrosis factor alpha (TNF-alpha), essentially T cell-derived. This cytokine release is responsible for the spontaneously reversible acute clinical syndrome observed in most OKT3-treated patients. We found that the first OKT3 injection in human renal allograft recipients led to the release in significant amounts of soluble TNF receptors (TNF-sR55 and TNF-sR75) that are considered main natural inhibitors of TNF bioactivity. As for OKT3-induced TNF-alpha, peak TNF-sR levels were observed 1 hr postinjection, and this release was limited to the first monoclonal antibody injection. A distinct regulation of OKT3-mediated release of TNF-sR75 and TNF-sR55 was observed, since (1) in clear contrast with OKT3-mediated TNF-sR75 induction, TNF-sR55 release was completely blocked by a high dose of corticosteroids prior to OKT3 injection and (2) secretion of TNF-sR75 but not TNF-sR55 correlated with immunoreactive TNF-alpha release. In hemodialyzed patients prior to transplantation and OKT3 treatment, a condition characterized by chronic TNF-alpha release, TNF-sR efficiently block TNF bioactivity. In contrast, the system is overwhelmed by the massive acute TNF-alpha release that follows the first OKT3 injection: in such a condition TNF-sR looses its capacity to counteract TNF bioactivity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0041-1337
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
59
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1470-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
In vivo soluble tumor necrosis factor receptor release in OKT3-treated patients. Differential regulation of TNF-sR55 and TNF-sR75.
pubmed:affiliation
U 25 INSERM, Association, Claude Bernard, Hôpital Necker, Paris, France.
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, Non-U.S. Gov't