Source:http://linkedlifedata.com/resource/pubmed/id/10452831
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9-10
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pubmed:dateCreated |
1999-9-23
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pubmed:abstractText |
Interleukin-6 (IL-6) levels are markedly increased in the synovial fluid of patients with rheumatoid arthritis or osteoarthritis. However, the effects of IL-6 on proliferation and proteoglycan metabolism in articular cartilage are not known. We demonstrated here the effects of human recombinant (hr) IL-6 on proliferation and proteoglycan metabolism in rabbit articular chondrocyte cultures. In vitro, these cells proliferated and produced abundant extracellular matrices. We found that 1-10 ng/ml of hrIL-6 inhibited proliferation to approximately 65% of control levels and suppressed colony formation induced by bFGF in soft agarose. The same concentration of hrIL-6 depressed proteoglycan synthesis to approximately 60% of control levels. Moreover, hrIL-6 significantly enhanced proteoglycan degradation induced by hrIL-1beta, although hrIL-6 alone did not affect proteoglycan degradation. These findings suggest that IL-6 is a negative regulator for chondrocyte proliferation and articular cartilage metabolism.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
1065-6995
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1998 Academic Press.
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pubmed:issnType |
Print
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pubmed:volume |
22
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
615-21
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10452831-Animals,
pubmed-meshheading:10452831-Arthritis, Rheumatoid,
pubmed-meshheading:10452831-Cartilage, Articular,
pubmed-meshheading:10452831-Cell Division,
pubmed-meshheading:10452831-Cell Size,
pubmed-meshheading:10452831-Cells, Cultured,
pubmed-meshheading:10452831-Chondrocytes,
pubmed-meshheading:10452831-Fibroblast Growth Factor 2,
pubmed-meshheading:10452831-Humans,
pubmed-meshheading:10452831-Interleukin-6,
pubmed-meshheading:10452831-Osteoarthritis,
pubmed-meshheading:10452831-Proteoglycans,
pubmed-meshheading:10452831-Rabbits,
pubmed-meshheading:10452831-Recombinant Proteins,
pubmed-meshheading:10452831-Synovial Fluid
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pubmed:year |
1998
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pubmed:articleTitle |
Effects of interleukin-6 on proliferation and proteoglycan metabolism in articular chondrocyte cultures.
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pubmed:affiliation |
Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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