TY - JOUR T1 - Effects of Copper and Zinc on Cathepsin B Activity in Equine Articular Chondrocytes AU - , Gustavo Hernandez Vidal AU - , Jorge R. Kawas Garza AU - , Rafael Ramirez Romero AU - , Luis E. Rodriguez Tovar AU - , Alicia M. Nevares Garza AU - , Francisco A. Mora Valdez AU - , Jesus J. Hernandez Escareno AU - , Elisabeth Davis AU - , Leo B. Jeffcott JO - Journal of Animal and Veterinary Advances VL - 8 IS - 5 SP - 935 EP - 945 PY - 2009 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2009.935.945 UR - https://makhillpublications.co/view-article.php?doi=javaa.2009.935.945 KW - Horse KW -cathepsin B KW -enzymatic activity KW -copper KW -zinc KW -chondrocytes KW -proteoglycan KW -articular cartilage and dyschondroplasia AB - The effects of copper and zinc on cathepsin B activity, chondrocytes behaviour and matrix turnover by articular cartilage were investigated in vitro using normal horse cartilage co-cultured with synovial tissue. Proteoglycan (PG) depletion was assessed by toluidine blue staining. Co-culture cartilage expressed elevated levels and activity of the PG-degrading enzyme cathepsin B. Copper but not zinc was able to reduce the depletion of PG and the enzyme activity induced by the synovial tissue. ER -