OBJECTIVE
To assess the activity of cysteine peptidases in cultured human articular chondrocytes as well as in osteoarthritic (OA) cartilage and subchondral bone, and to interpret their relative importance in cartilage destruction and remodeling of the subchondral region.
METHODS
Intracellular and
Subchondral bone remodeling in osteoarthritis (OA) and rheumatoid arthritis (RA) is mainly characterized by the formation of osteophytes/fibrosis and by the presence of infiltrating cells associated to bone resorption. In this study we analyzed CC (cysteinecysteine motif) chemokine ligand (CCL)20
In this study, we observed changes in CD4(+) CD25(+) Foxp3(+) Treg expression in rats with osteoarthritis (OA) to explore the role that CD4(+) CD25(+) Foxp3(+) Treg plays in the decline in the condition of OA rats. Thirty rats were randomly divided into 2 groups equally and OA was induced in rats in
Random high throughput sequencing of a human osteoclast cDNA library was employed to identify novel osteoclast-expressed genes. Of the 5475 ESTs obtained, approximately 4% encoded cathepsin K, a novel cysteine protease homologous to cathepsins S and L; ESTs for other cathepsins were rare. In
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