Role of interleukin-7 in degenerative and inflammatory joint diseases
- PMID: 18466642
- PMCID: PMC2453758
- DOI: 10.1186/ar2395
Role of interleukin-7 in degenerative and inflammatory joint diseases
Abstract
IL-7 is known foremost for its immunostimulatory capacities, including potent T cell-dependent catabolic effects on bone. In joint diseases like rheumatoid arthritis and osteoarthritis, IL-7, via immune activation, can induce joint destruction. Now it has been demonstrated that increased IL-7 levels are produced by human articular chondrocytes of older individuals and osteoarthritis patients. IL-7 stimulates production of proteases by IL-7 receptor-expressing chondrocytes and enhances cartilage matrix degradation. This indicates that IL-7, indirectly via immune activation, but also by a direct action on cartilage, contributes to joint destruction in rheumatic diseases.
Comment on
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Human articular chondrocytes produce IL-7 and respond to IL-7 with increased production of matrix metalloproteinase-13.Arthritis Res Ther. 2008;10(1):R23. doi: 10.1186/ar2376. Epub 2008 Feb 20. Arthritis Res Ther. 2008. PMID: 18289383 Free PMC article.
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