Platelets and coagulation factors

Platelets and coagulation factors represent the two primary arms of the hemostatic system, which functions to maintain vascular integrity and prevent excessive blood loss (StatPearls, 2023). Platelets are small, anucleated cell fragments that aggregate at sites of vascular injury to form a primary hemostatic plug (NIH, 2022). Coagulation factors are a series of plasma proteins, mostly serine proteases, that activate in a cascade to generate thrombin, which converts soluble fibrinogen into an insoluble fibrin mesh that stabilizes the platelet plug (Wikipedia, 2024). Dysregulation of this system is a central feature of many cardiovascular diseases, where pathological thrombus formation can lead to myocardial infarction or stroke (PubMed, 2021). Pharmacological interventions target specific components of this system, including antiplatelet drugs (e.g., aspirin, clopidogrel) and anticoagulants (e.g., warfarin, heparin, and direct oral anticoagulants) (NIH, 2022). Because 'Platelets and coagulation factors' refers to a complex physiological system rather than a single molecular entity, it is categorized as a broad therapeutic area rather than a specific drug target.

Other names

Hemostatic systemBlood clotting systemCoagulation cascade and plateletsPrimary and secondary hemostasis

Pharmacological agents target this system by inhibiting platelet activation and aggregation (e.g., via COX-1 or P2Y12 receptors) or by interfering with the enzymatic cascade of coagulation factors (e.g., inhibiting Factor Xa or Thrombin) to prevent or treat thrombosis (StatPearls, 2023).