Related Experiment Video
Updated: Jul 16, 2026

Platelet Adhesion and Aggregation Under Flow using Microfluidic Flow Cells
Published on: October 27, 2009
Molecular mechanisms of platelet aggregation
Recent studies suggest that platelet stimulation leads to the induction of specific fibrinogen receptors, which have been identified as the platelet membrane glycoprotein IIb-IIIa complex. The binding of fibrinogen initiates the reversible primary phase of aggregation. With a strong stimulus, thrombospondin is released from the platelet alpha-granules. By interacting with fibrinogen, thrombospondin serves to stabilize the platelet aggregates, which leads to a secondary irreversible phase of aggregation.
Recent studies suggest that platelet stimulation leads to the induction of specific fibrinogen receptors, which have been identified as the platelet membrane glycoprotein IIb-IIIa complex. The binding of fibrinogen initiates the reversible primary phase of aggregation. With a strong stimulus, thrombospondin is released from the platelet alpha-granules. By interacting with fibrinogen, thrombospondin serves to stabilize the platelet aggregates, which leads to a secondary irreversible phase of aggregation.
More Related Videos
09:13Turbidimetry on Human Washed Platelets: The Effect of the Pannexin1-inhibitor Brilliant Blue FCF on Collagen-induced Aggregation
Published on: April 6, 2017
05:49Procoagulant Platelet Characterization by Measuring Phosphatidylserine Exposure and Microvesicle Release from Human Purified Platelets
Published on: November 29, 2024
Related Concept Videos
Intracellular Signaling Affects Focal Adhesions
Some...
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Structure and Function of Platelets
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000 platelets, with...
Formation of the Platelet Plug
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
Clot Retraction and Fibrinolysis