- Differential in vivo expression of collagenase messenger RNA in synovium and cartilage. Quantitative comparison with stromelysin messenger RNA levels in human rheumatoid arthritis and osteoarthritis patients and in two animal models of acute inflammatory arthritis. Wolfe, G.C., MacNaul, K.L., Buechel, F.F., McDonnell, J., Hoerrner, L.A., Lark, M.W., Moore, V.L., Hutchinson, N.I. Arthritis Rheum. (1993)