Calcium calmodulin kinase II activity is required for cartilage homeostasis in osteoarthritis by Nalesso, G, Thorup, A-S, Eldridge, SE, De Palma, A, Kaur, A, Peddireddi, K, Blighe, K, Rana, S, Stott, B, Vincent, TL, Thomas, BL, Bertrand, J, Sherwood, J, Fioravanti, A, Pitzalis, C, Dell'Accio, F