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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1988-11-9
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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.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
141
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2612-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3262665-Adult,
pubmed-meshheading:3262665-Antigen-Antibody Reactions,
pubmed-meshheading:3262665-Arthritis, Rheumatoid,
pubmed-meshheading:3262665-Chromatography, Gel,
pubmed-meshheading:3262665-Humans,
pubmed-meshheading:3262665-Interleukin-1,
pubmed-meshheading:3262665-Interleukin-2,
pubmed-meshheading:3262665-Leukocytes, Mononuclear,
pubmed-meshheading:3262665-Middle Aged,
pubmed-meshheading:3262665-Receptors, Interleukin-2,
pubmed-meshheading:3262665-Solubility,
pubmed-meshheading:3262665-Synovial Fluid
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pubmed:year |
1988
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pubmed:articleTitle |
Soluble IL-2 receptor in rheumatoid arthritis. Correlation with disease activity, IL-1 and IL-2 inhibition.
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pubmed:affiliation |
University of Edinburgh, Department of Medicine, U.K.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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