Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1986-6-6
pubmed:abstractText
Epstein Barr virus (EBV)-infection of normal peripheral blood mononuclear cells (PBMC) in vitro induces IFN-alpha secretion from B cell and natural killer (NK) cell populations, and IFN-gamma secretion from T cells. IFN-gamma depends on prior elaboration of IL 2 and IL 1 that originates from monocytes and NK cells. PBMC from rheumatoid arthritis (RA) patients released moderately elevated levels of IFN-alpha (236 +/- 62 U/ml vs 168 +/- 34 in normals). In contrast, IFN-gamma was significantly lower in RA (88 +/- 34 U/ml vs 209 +/- 32) with an associated deficit in IL 2. A monocyte-dependent factor was shown to be responsible for this deficit, since monocyte depletion of RA cultures normalized the levels of IL 2 and IFN-gamma. Significantly lower levels of IL 1 activity were present in the supernatants of RA PBMC cultures as compared with normal cultures, and this was shown to be associated with presence of a nondialyzable IL 1 inhibitor. This inhibitor was capable of preventing the IL 1-dependent synthesis of IL 2 and IFN-gamma by normal PBMC. Exogenous IL 1 or IL 2 restored the deficient IFN-gamma secretion in RA PBMC. Thus, the deficient ability of RA lymphocytes to control EBV infection may be secondary to impairment of a monocyte-T cell interaction at the level of IL 1.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
136
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3643-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Release of lymphokines after infection with Epstein Barr virus in vitro. II. A monocyte-dependent inhibitor of interleukin 1 downregulates the production of interleukin 2 and interferon-gamma in rheumatoid arthritis.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't