Retinoic acid and oncostatin M combine to promote cartilage degradation via matrix metalloproteinase-13 expression in bovine but not human chondrocytes
| Autor: | W. D. Shingleton, Debbie Jones, Tim E. Cawston, Xin Xu, Andrew D. Rowan |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Cartilage
Articular Swine Retinoic acid Tretinoin Oncostatin M Matrix metalloproteinase Chondrocyte Extracellular matrix chemistry.chemical_compound Chondrocytes Rheumatology Species Specificity Matrix Metalloproteinase 13 Medicine Animals Humans Pharmacology (medical) Collagenases Cells Cultured biology business.industry Cartilage Drug Synergism Tissue Inhibitor of Metalloproteinases Bovine Cartilage Recombinant Proteins Cell biology medicine.anatomical_structure Proteoglycan Biochemistry chemistry biology.protein Cytokines Cattle Proteoglycans Collagen Inflammation Mediators business |
| Zdroj: | Rheumatology (Oxford, England). 45(8) |
| ISSN: | 1462-0324 |
| Popis: | Objectives. Retinoic acid (RetA) and oncostatin M (OSM) have both been shown to mediate potent effects with respect to extracellular matrix integrity. This study assesses the effects of a RetA þ OSM combination on cartilage catabolism. Methods. Animal and human cartilage samples were used to assess the ability of RetA þ OSM to promote the release of collagen and proteoglycan fragments, which was determined by measuring glycosaminoglycan and hydroxyproline, respectively. Total collagenolytic and tissue inhibitor of metalloproteinases (TIMP) inhibitory activities were determined by bioassay, whilst gene expression of matrix metalloproteinases (MMPs) and TIMP-1 were determined by northern blotting. Immunohistochemistry was used to assess the presence of MMP-1 and -13 in resorbing cartilage explants. Results. Both agents alone induced proteoglycan release from bovine cartilage, whilst RetA-induced collagen release was variable. Reproducible and synergistic collagenolysis was observed with RetA þ OSM, which appeared to be due to MMP-13. Similar collagen release was observed from porcine cartilage. Conversely, no collagen release was seen with human articular cartilage. In primary human chondrocytes, RetA þ OSM failed to induce MMP-1 or -13 but caused a significant increase in TIMP-1 expression. Conclusions. These novel observations show that the combination of RetA þ OSM has profound effects on cartilage matrix turnover, but these effects are species-specific. A better understanding of the mechanism by which this combination differentially regulates MMP and TIMP expression in human chondrocytes could provide valuable insight into new therapeutic strategies aimed at the prevention of cartilage destruction. |
| Databáze: | OpenAIRE |
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