Fibrin formation via coagulation cascade

Fibrin formation via the coagulation cascade refers to the biochemical process by which blood changes from a liquid to a gel, forming a clot to stop bleeding after vascular injury. It involves a series of enzymatic reactions—comprising the intrinsic, extrinsic, and common pathways—where inactive coagulation factors are sequentially activated, leading to the conversion of fibrinogen to fibrin by thrombin. Fibrin polymers form a mesh that stabilizes the initial platelet plug, achieving hemostasis. This process is essential for wound healing but, when dysregulated, contributes to thrombosis or bleeding disorders. Therapies typically target enzymes in this cascade to prevent or dissolve clots in disease states.

Other names

Coagulation cascadeFibrin clot formationBlood coagulationHemostatic cascade

Inhibition of coagulation factors (e.g., thrombin inhibition, factor Xa inhibition); Enhancement of fibrinolysis (e.g., tPA promoting plasmin activity); Prevention of fibrin polymerization