Effects of IL-6 and soluble IL-6 receptor on the expression of cartilage matrix proteins in human chondrocytes.
Connect Tissue Res
; 48(5): 263-70, 2007.
Article
em En
| MEDLINE
| ID: mdl-17882702
ABSTRACT
Elevated concentrations of interleukin (IL)-6 and soluble IL-6 receptor (sIL-6Ralpha) in synovial fluid have been implicated in joint cartilage destruction. We examined the effect of IL-6 and sIL-6Ralpha on cell growth, alkaline phosphatase (ALPase) activity, and the expression of Sox-9, type II collagen, aggrecan core, link protein, BMP-7, and BMP receptors in human chondrocytes. Cell proliferation increased slightly in the presence of both IL-6 and sIL-6Ralpha, whereas ALPase activity decreased markedly. The expression of Sox-9 and aggrecan core did not change in the presence or absence of IL-6 and sIL-6Ralpha, whereas the expression of type II collagen, link protein, BMP-7, and BMP receptors increased in the presence of both IL-6 and sIL-6Ralpha. These results suggest that IL-6 and sIL-6Ralpha suppress the differentiation of chondrocytes and induce the repair of arthrodial cartilage through an increase in the expression of cartilage matrix proteins, BMP-7, and BMP receptors in the cells.
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Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Proteínas da Matriz Extracelular
/
Interleucina-6
/
Condrócitos
/
Receptores de Interleucina-6
Limite:
Humans
Idioma:
En
Revista:
Connect Tissue Res
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Japão