Linked Life Data

10582202

Source:http://linkedlifedata.com/resource/pubmed/id/10582202

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-2-29
pubmed:abstractText
We have previously demonstrated that there is a factor present in some human serum which inhibits the passive cutaneous anaphylaxis reaction mediated by IgE. The present study analyzes the effect of this factor on mast cell IgE-dependent tumor necrosis factor (TNF)-alpha release. Rat peritoneal mast cells and RBL-2H3 cells treated with monoclonal mouse IgE anti-dinitrophenol (anti-DNP) followed by DNP-bovine serum albumin (DNP-BSA) were used and TNF-alpha release was measured at different time points. Similarly the percentage of rat peritoneal mast cell degranulation was determined. Results show a period of 30 min as optimal incubation time for TNF-alpha release in both mast cell populations. Human serum anaphylaxis inhibitory factor enriched fraction inhibited TNF-alpha release when it was in contact with IgE before the antigen treatment. Under these conditions the percentage of mast cell degranulation decreased. Mast cells incubated before IgE treatment with the factor alone do not release TNF-alpha and the percentage of degranulation increases due to a non-IgE-dependent process. A possible role of the inhibitory factor in the later phase reaction in addition to immediate hypersensitivity described previously is suggested.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1018-9068
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
330-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Anaphylaxis inhibitory factor in IgE-dependent mast cell stimulation.
pubmed:affiliation
Institute of Immunology, Universidad Austral de Chile, Valdivia, Chile.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't