Related Experiment Video
Updated: May 8, 2026

A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time
Published on: February 14, 2017
Coagulation and platelet activation pathways. A review of the key components and the way in which these can be
1Center for Haemostasis, Thrombosis, Atherosclerosis and Inflammation Research, University of Amsterdam, Netherlands.
Insights
Acute coronary syndromes result from blood clots in arteries. This review details platelet and coagulation activation, and how new antithrombotic drugs target these processes for treatment.
Area of Science:
- Cardiology
- Hematology
- Pharmacology
Background:
- Acute coronary syndromes (ACS) involve thrombotic obstruction of diseased arteries, primarily due to platelet and fibrin aggregation.
- Historically, antithrombotic treatment options for ACS were limited to aspirin, heparin, and dicumarol.
- Advances in understanding the pathophysiology of ACS have led to a significant expansion of available antithrombotic therapies.
Purpose of the Study:
- To review the physiological mechanisms of platelet activation and coagulation cascade.
- To discuss the therapeutic manipulation of these pathways in the context of acute coronary syndromes.
- To provide an overview of the current landscape of antithrombotic drug development and application.
Main Methods:
- Literature review of physiological processes involved in thrombosis.
- Analysis of the mechanisms of action for various antithrombotic agents.
- Synthesis of information on therapeutic strategies for managing acute coronary syndromes.
Main Results:
- Detailed explanation of platelet activation pathways, including receptor-ligand interactions and signaling cascades.
- Comprehensive overview of the coagulation cascade, highlighting key enzymes and cofactors.
- Discussion of novel antithrombotic drugs targeting specific components of platelet aggregation and fibrin formation.
Conclusions:
- A deeper understanding of thrombosis has revolutionized ACS treatment.
- The expanded range of antithrombotic drugs offers more targeted and effective therapeutic options.
- Continued research into thrombotic mechanisms promises further advancements in ACS management.
Abstract:
Acute coronary syndromes are caused by thrombotic obstruction of usually diseased arteries. The thrombotic plug consists of platelets and fibrin. Until recently only three antithrombotic drugs, aspirin, heparin and dicumarol were available for the prevention and treatment of acute coronary syndromes. A better understanding of the cellular and humoral mechanisms underlying these syndromes has broadened the arsenal of antithrombotic drugs dramatically. In this review the physiological activation process of platelets and the coagulation cascade are discussed. Furthermore, the ways in which these processes can be therapeutically manipulated are reviewed.
Related Concept Videos
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Introduction to Hemostasis
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized, and...
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...
Coagulation
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
Extrinsic and Intrinsic Pathways of Hemostasis
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which forms a...
Clot Retraction and Fibrinolysis

