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Editorial
. 2008;10(2):107.
doi: 10.1186/ar2395. Epub 2008 Apr 18.

Role of interleukin-7 in degenerative and inflammatory joint diseases

Editorial

Role of interleukin-7 in degenerative and inflammatory joint diseases

Joel A G van Roon et al. Arthritis Res Ther. 2008.

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.

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