Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1988-11-9
pubmed:abstractText
An ELISA was used to measure soluble IL-2R (sIL-2R) in the sera and synovial fluids of patients with rheumatic diseases. Patients with rheumatoid arthritis had raised levels of sIL-2R both in their sera and in their synovial fluid compared to patients with osteoarthritis and age-matched healthy controls. Mononuclear cells from the synovial fluid of rheumatoid arthritis patients were found to produce spontaneously high levels of sIL-2R which eluted at approximately m.w. 40,000 on gel filtration. In contrast, autologous peripheral blood cells only produced comparable levels upon stimulation with mitogenic lectin. Sequential studies indicated that serum sIL-2R levels were highly correlated with disease activity, indicating that measurement of sIL-2R may be a useful clinical marker in the future. Within the joint, synovial fluid sIL-2R levels correlated significantly with immunoreactive IL-1 beta levels, providing evidence for a role of IL-1 in immune activation in the synovium. In synovial fluids, sIL-2R level also correlated with functional inhibition of IL-2-driven responses in vitro. Furthermore, sIL-2R immunoreactivity in synovial fluid eluted at m.w. 100,000 coeluting with IL-2-inhibitory activity and consistent with a role for sIL-2R in down-regulation of IL-2 responses. The abnormal m.w. may be accounted for by complex formation in the synovial fluid. Given the ability of sIL-2R to bind IL-2, the presence of sIL-2R within the joint may contribute to the well documented "IL-2 defect" seen in rheumatoid arthritis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
141
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2612-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Soluble IL-2 receptor in rheumatoid arthritis. Correlation with disease activity, IL-1 and IL-2 inhibition.
pubmed:affiliation
University of Edinburgh, Department of Medicine, U.K.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't