Synovial procollagenase activation by human mast cell tryptase dependence upon matrix metalloproteinase 3 activation Gruber, B.L.; Marchese, M.J.; Suzuki, K.; Schwartz, L.B.; Okada, Y.; Nagase, H.; Ramamurthy, N.S. Journal of Clinical Investigation 84(5): 1657-1662 1989 0021-9738 https://eurekamag.com/research/007/853/007853850.php