thrombin inhibitor 2

Thrombin Inhibitor 2 is a small molecule direct thrombin inhibitor with antithrombotic activity.

Edoxaban (Lixiana) (DU-176) is a selective, potent and orally active factor Xa (FXa) inhibitor with K i s of 0.561 nM and 2.98 nM for free FXa and prothrombinase, respectively. Edoxaban is an anticoagulant agent and is able to be used for stroke prevention. Edoxaban is a also weak inhibitor of thrombin and factor IXaβ (FIXa), with K i s of 6.00 μM and 41.7 μM, respectively, exhibits >10 000-fold selectivity for FXa. Edoxaban has antithrombotic properties and is potential for thromboembolic diseases treatment [1] [2] [3].

Patamostat (E-3123) is a potent protease inhibitor that effectively inhibits trypsin, plasmin, and thrombin with IC50 values of 39 nM, 950 nM, and 1.9 µM, respectively. Research suggests it might suppress the pathogenesis and development of acute pancreatitis [1] [2].

Parmodulin 2 (ML 161) is the inhibitor of protease-activated receptor 1 (PAR1)-mediated platelet activation (IC50: 0.26 μM for the inhibition of platelet P-selectin expression on human platelets). It also inhibits thrombin-induced platelet activation.

AC-55541 (AOB2796) is a novel PAR2 agonist; activated PAR2 signaling in cellular proliferation assays, phosphatidylinositol hydrolysis assays, and Ca(2+) mobilization assays, with potencies ranging from 200 to 1000 nM.

AR-H067637 is a rapid-binding, reversible and potent (inhibition constant K(i) = 2-4 nM), competitive inhibitor of thrombin, as well as of thrombin bound to fibrin (clot-bound thrombin) or to thrombomodulin. The total amount of free thrombin generated in

RWJ-56110 dihydrochloride is a potent, selective, peptide-mimetic inhibitor of PAR-1 activation and internalization (binding IC50=0.44 μM), showing no effect on PAR-2, PAR-3, or PAR-4. It inhibits the aggregation of human platelets induced by SFLLRN-NH2 (IC50=0.16 μM) and thrombin (IC50=0.34 μM), with high selectivity relative to U46619. RWJ-56110 dihydrochloride also blocks angiogenesis and the formation of new vessels in vivo, and induces cell apoptosis[1][2].

AC-264613 is an agonist of the GPCR protease-activated receptor 2 (PAR2). AC-264613(AC264613) suppresses interferon regulatory factor 5 and decreases interleukin-12p40 production by lipopolysaccharide-stimulated macrophages. AC-264613(AC264613) activated PAR2 signaling in cellular proliferation assays, phosphatidylinositol hydrolysis assays, and Ca(2+) mobilization assays, with potencies ranging from 30 to 100 nM.

I-191 is a potent antagonist of protease-activated receptor 2 (PAR2), inhibits multiple signaling functions in human cancer cells.

Protease-Activated Receptor-2, amide (SLIGKV-NH2) is an agonist of PAR2 with an IC50 of 10.4 M.

Bivalirudin TFA, a synthetic 20-residue peptide, serves as a reversible inhibitor of thrombin. Its IC50 value highlights its target specificity in vitro, where, combined with Eptifibatide (8 mg mL) at a low concentration (70 ng mL), it significantly reduces platelet aggregation induced by thrombin (0.2 U mL) by approximately 90% [1]. The compound demonstrates no effect on thrombin generation assay (TGA) parameters up to 10 μmol L [2]. Additionally, it facilitates the binding of MPO to BAEC, leading to functional alterations such as increased NO consumption and enhanced MPO-mediated redox modifications [3]. In vivo studies reveal its efficacy in preventing the rise of antiheparin PF4 antibody IgG levels in rats, with significant findings from the toxicokinetic assessment signaling its safety profile at tested doses, although higher doses resulted in fatalities [4][5]. In clinical trials, its antithrombotic effects were explored, comparing it with alternatives like Ticagrelor and Clopidogrel in a Phase 4 study.

Benzenecarboximidamide, hydrochloride, hydrate (1:1:x) (Benzamidine hydrochloride hydrate) is a reversible competitive trypsin-like serine proteases inhibitor with K i s of 20, 21, 97, 110, 320 and 750 μM against Tryptase, Trypsin, uPA, Factor Xa , Thrombin and tPA, respectively [1] [2] .

Concizumab is an anti-TFPI monoclonal antibody (IgG4 type) that selectively binds to the Kunitz protease inhibitor (KPI) 2 domain of TFPI, blocking its interaction with the FXa active site. Injections of Concizumab increase thrombin in blood, thereby preventing and treating hemophilia.

PAR-2-IN-1 (IUN76750) is a PAR- 2 signaling pathway inhibitor with anti-inflammatory and anticancer effects.

JAMM protein inhibitor 2 (Acetamide, 2-(2-ethylphenoxy)-N-[2-methyl-4-(1-pyrrolidinyl)phenyl]-) is an inhibitor of JAMM protease and can be used for anticancer studies. The IC50s are 10 μM, 46 μM, and 89 μM for thrombin, Rpn11, and MMP2, respectively.

SLIGRL-NH2 (Protease-Activated Receptor-2 Activating Peptide) is a PAR-2 agonist that induces non-histaminergic pruritus.

AZ3451 is an allosteric antagonist of protease-activated receptor-2 (PAR2, IC50: 23 nM).