1. Academic Validation
  2. Inhibitory effects of ONO-3307 on various proteases and tissue thromboplastin in vitro and on experimental thrombosis in vivo

Inhibitory effects of ONO-3307 on various proteases and tissue thromboplastin in vitro and on experimental thrombosis in vivo

  • Jpn J Pharmacol. 1989 Dec;51(4):455-63. doi: 10.1254/jjp.51.455.
S Matsuoka 1 M Futagami H Ohno K Imaki T Okegawa A Kawasaki
Affiliations

Affiliation

  • 1 Minase Research Institute, Ono Pharmaceutical Co., Ltd., Osaka, Japan.
Abstract

The effect of ONO-3307 (4-sulfamoyl phenyl-4-guanidinobenzoate methanesulfonate), a new Protease inhibitor, was studied on various proteases in vitro and in an experimental thrombosis model in vivo. ONO-3307 competitively inhibited trypsin, Thrombin, plasma Kallikrein, plasmin, pancreatic Kallikrein and chymotrypsin; and their Ki values were 0.048 microM, 0.18 microM, 0.29 microM, 0.31 microM, 3.6 microM and 47 microM, respectively. In addition, ONO-3307 inhibited both Elastase release from N-formyl-Met-Leu-Phe (fMLP)-stimulated leukocytes and tissue thromboplastin release from endotoxin-stimulated leukocytes. To examine the effects of ONO-3307 on disseminated intravascular coagulation (DIC), we developed an experimental thrombosis model. ONO-3307 (10 mg/kg/hr) completely inhibited the deposition of radioactive fibrin in kidney and lung. Gabexate mesilate (50 mg/kg/hr) was also effective in this model, but the effect of nafamostat mesilate was unclear. These results indicate that ONO-3307 exhibits a wide range of inhibitory effects on various proteases, and ONO-3307 may be useful for the treatment of protease-mediated diseases such as thrombosis and DIC.

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