Related Experiment Video

Updated: Jul 19, 2026

In Vitro Microfluidic Disease Model to Study Whole Blood-Endothelial Interactions and Blood Clot Dynamics in Real-Time
09:19

In Vitro Microfluidic Disease Model to Study Whole Blood-Endothelial Interactions and Blood Clot Dynamics in Real-Time

Published on: May 24, 2020

[From thrombin hypothesis to inflammation. Is it reality?]

Héctor González Pacheco1

  • 1Unidad de Cuidados Coronarios, Instituto Nacional de Cardiología Ignacio Chávez, Tlalpan, DF México.

Archivos De Cardiologia De Mexico
|October 5, 2006
PubMed

Insights

Acute coronary syndromes involve more than plaque rupture; systemic inflammation and tissue factor (TF) drive plaque instability and atherothrombotic activity. TF activates protease-activated receptors (PARs), creating a detrimental inflammation-coagulation cycle.

Area of Science:

  • Cardiovascular Medicine
  • Immunology
  • Hematology

Context:

  • Acute coronary syndromes (ACS) are traditionally linked to atherosclerotic plaque rupture and subsequent thrombosis.
  • Emerging evidence highlights the significant role of systemic inflammation in ACS pathogenesis.
  • The interplay between inflammation and coagulation is crucial in atherothrombosis.

Purpose:

  • To explore the role of systemic inflammation and tissue factor (TF) in acute coronary syndromes.
  • To elucidate the mechanisms linking inflammation, coagulation, and plaque instability.
  • To understand the activation of protease-activated receptors (PARs) by TF in ACS.

Summary:

  • The classical view of ACS focuses on coronary artery thrombosis from plaque rupture.
  • Systemic inflammatory processes are increasingly recognized as key contributors to plaque instability.
  • Tissue factor (TF) plays a central role in atherothrombotic activity, activating protease-activated receptors (PARs) and perpetuating a cycle of inflammation and coagulation.

Impact:

  • This understanding may lead to novel therapeutic strategies targeting inflammation and coagulation pathways in ACS.
  • Identifying the role of TF and PARs could offer new diagnostic or prognostic biomarkers.
  • Shifts the paradigm from localized plaque events to a systemic inflammatory-coagulative perspective in ACS.

More Related Videos

Real-time Imaging of Heterotypic Platelet-neutrophil Interactions on the Activated Endothelium During Vascular Inflammation and Thrombus Formation in Live Mice11:18

Real-time Imaging of Heterotypic Platelet-neutrophil Interactions on the Activated Endothelium During Vascular Inflammation and Thrombus Formation in Live Mice

Published on: April 2, 2013

A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time09:38

A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

Published on: February 14, 2017

Related Concept Videos

Extrinsic and Intrinsic Pathways of Hemostasis01:20

Extrinsic and Intrinsic Pathways of Hemostasis

Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
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...
Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
Clot Retraction and Fibrinolysis01:16

Clot Retraction and Fibrinolysis

After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
Formation of the Platelet Plug01:22

Formation of the Platelet Plug

The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
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...
Venous Thrombosis I: Introduction01:30

Venous Thrombosis I: Introduction

Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
Inflammation01:38

Inflammation

Overview