Title : Effect of SanOrg123781A, a synthetic hexadecasaccharide, on clot-bound thrombin and factor Xa in vitro and in vivo.

Pub. Date : 2003 Sep

PMID : 12941037






6 Functional Relationships(s)
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1 In buffer, heparin and SanOrg123781A inhibited FXa and thrombin at similar concentrations [concentration inhibiting 50% (IC50) of Xa and IIa activity were, respectively: heparin 120 +/- 7 and 3 +/- 1 ng mL-1; SanOrg123781A 77 +/- 5 and 4 +/- 1 ng mL-1]. Heparin L1 cell adhesion molecule Mus musculus
2 In buffer, heparin and SanOrg123781A inhibited FXa and thrombin at similar concentrations [concentration inhibiting 50% (IC50) of Xa and IIa activity were, respectively: heparin 120 +/- 7 and 3 +/- 1 ng mL-1; SanOrg123781A 77 +/- 5 and 4 +/- 1 ng mL-1]. Heparin L1 cell adhesion molecule Mus musculus
3 We showed that heparin and SanOrg123781A were able to inhibit fragment F1+2 generation induced by clot-bound FXa with IC50 values of 2 +/- 0.5 micro g mL-1 and 0.6 +/- 0.2 micro g mL-1, respectively. Heparin L1 cell adhesion molecule Mus musculus
4 We showed that heparin and SanOrg123781A were able to inhibit fragment F1+2 generation induced by clot-bound FXa with IC50 values of 2 +/- 0.5 micro g mL-1 and 0.6 +/- 0.2 micro g mL-1, respectively. Heparin L1 cell adhesion molecule Mus musculus
5 Both compounds also inhibited clot-bound thrombin activity, the IC50 values of heparin and SanOrg123781A being 1 +/- 0.01 micro g mL-1 and 0.1 +/- 0.1 micro g mL-1, respectively. Heparin L1 cell adhesion molecule Mus musculus
6 Moreover, both heparin and SanOrg123781A significantly inhibited fibrinopeptide A generated by the action of clot-bound thrombin on fibrinogen but also by free thrombin generated from prothrombin by clot-bound FXa with IC50 values of 4 +/- 0.6 and 1 +/- 0.1 micro g mL-1, respectively. Heparin L1 cell adhesion molecule Mus musculus