[CAS NO. 141396-28-3]  Argatroban Monohydrate

Argatroban is highly selective for thrombin and has little or no effect on related serine proteases (trypsin, factor Xa, plasmin, and kallikrein). Argatroban is effective against free, fibrin-bound and clot-bound thrombin with comparable half-maximal inhibitory concentrations (IC50), and argatroban is also effective in inhibiting platelet aggregation and thromboxane generation in the presence of both free and clot-bound thrombin. Argatroban binds thrombin and inhibits its activity without the requirement of coenzymes, unlike antithrombin III or heparin cofactor II. Argatroban decreases bone metastasis of B16 mouse melanoma cells by inactivating thrombin activity. Moreover, argatroban has potential to inhibit PAR-2 activation by interfering with the thrombogenic cycle. It does not have toxic effect for tumor cells.