Molecular Classification
Cell Fragment, Blood Cell, Non-canonical target
Other Names
Activated Thrombocyte
Disease Roles
ThrombosisCardiovascular diseaseStroke

Activated Platelet Overview

Activated platelets are blood cell fragments that have undergone a transformation in response to vascular injury or other stimuli, shifting from a resting state to an active one. This activation is central to hemostasis (the process of stopping bleeding), thrombosis (clot formation), inflammation, and immune responses. They initiate and propagate clot formation by adhering to damaged blood vessels and aggregating, release granule contents to recruit more platelets, and contribute to wound healing and inflammation.

Mechanism of Action

Inhibition of platelet activation pathways (e.g., COX-1 inhibition, P2Y12 receptor blockade)

Biological Functions

Hemostasis
Thrombosis
Inflammation
Immune response
Wound healing
Cell aggregation

Disease Associations

Thrombosis
Cardiovascular disease
Stroke
Inflammation
Atherosclerosis

Safety Considerations

  • Increased bleeding risk
  • Thrombocytopenia
  • Drug resistance

Interacting Drugs

Aspirin
Clopidogrel
Fibrinogen
von Willebrand Factor

Associated Biomarkers

Biomarker
Platelet aggregation assays
P-selectin expression
Thromboxane A2 levels
GPIIb/IIIa expression