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Aggrecanases, in particular aggrecanase-2 (ADAMTS-5), are considered the principal proteases responsible for aggrecan degradation in osteoarthritis. For this reason, considerable effort has been put on the discovery and development of aggrecanase inhibitors able to slow down or halt the progression of osteoarthritis. We report herein the synthesis and biological evaluation of a series of arylsulfonamido-based hydroxamates as aggrecanase inhibitors. Compound 18 was found to have a nanomolar activity for ADAMTS-5, ADAMTS-4 and MMP-13 and high selectivity over MMP-1 and MMP-14. Furthermore, this compound proved to be effective in blocking ex vivo cartilage degradation without having effect on cell cytotoxicity.

Original publication




Journal article


Eur J Med Chem

Publication Date





379 - 394


ADAM Proteins, ADAMTS4 Protein, ADAMTS5 Protein, Dose-Response Relationship, Drug, Humans, Matrix Metalloproteinase Inhibitors, Matrix Metalloproteinases, Models, Molecular, Molecular Structure, Osteoarthritis, Procollagen N-Endopeptidase, Protease Inhibitors, Structure-Activity Relationship, Sulfonamides