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[A new thrombocyte aggregation-inhibiting and fibrinolysis-promoting synthetic molecule: RGDF (Arg-Gly-Asp-Phe) coupled with the carboxyterminal antiplasmin peptide].

OBJECTIVE
Synthesize such hybrid peptides, which contain the RGD (Arg-Gly-Asp) sequence coupled with another peptide containing lysine residues in special positions, to inhibit simultaneously platelet activation and promote fibrinolytic processes.


DESIGN
The in vitro haemostasis modifying properties of the synthesized peptides were tested with ADP induced platelet aggregation, in vitro plasmin generation tests and fibrin-clot lysis assays.


RESULTS AND CONCLUSIONS
RGDF (Arg-Gly-Asp-Phe) coupled with the carboxyterminal antiplasmin peptide (RGDFAP hybrid molecule) has a common concentration range for inhibiting platelet activation and increase plasmin generation along with accelerated in vitro fibrin-clot lysis.