Fibrin (formed from Fibrinogen) (None commonly used for "Fibrin formation"; for the protein: Fibrin(ogen))

Fibrin is an insoluble, fibrous protein derived from fibrinogen by the action of thrombin during the coagulation cascade, critically involved in forming stable blood clots at sites of vascular injury[4][5][2][1]. When a vessel wall is damaged, platelets adhere to the exposed collagen, become activated, and form a platelet plug. Coagulation factors then convert fibrinogen to fibrin, which polymerizes into strands that reinforce the platelet plug and seal the wound[1][2][3][4][6]. Fibrin serves as the scaffold for tissue repair and is ultimately removed by fibrinolysis[4][1][3]. Dysfunction in fibrin formation leads to bleeding disorders or pathological thrombosis. For structured databasing, "Fibrin formation in damaged vessel wall" should be entered as a process or pathway, with molecular targets being Fibrin, Fibrinogen, or enzymes of the coagulation cascade (e.g., Thrombin). The process itself is not a druggable molecular target; molecules and enzymes in the cascade are appropriate entries.

Other names

Fibrin clot formationCoagulation/final common pathwayBlood clot formationFibrin plug

Inhibition of thrombin (prevents conversion of fibrinogen to fibrin) Enhancement of plasminogen activation (fibrinolysis; dissolves fibrin clots) Inhibition of platelet function (reduces aggregation, limits plug formation)