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Updated: Jun 16, 2026

Extracellular Vesicle Tissue Factor Activity Assay

Extracellular Vesicle Tissue Factor Activity Assay

Published on: December 29, 2023

Tissue factor in acute coronary syndromes.

¹Deutsches Herzzentrum und 1 Medizinische Klinik der Technischen Universität Munich, Germany. ott@dhm.mhn.de

Seminars in Vascular Medicine

|June 17, 2004

Summary

Tissue factor (TF) drives thrombosis in acute coronary syndromes. Its regulation by tissue factor pathway inhibitor-1 (TFPI) is crucial, as thrombolysis can impair TFPI, potentially worsening outcomes.

Area of Science:

Cardiovascular Medicine
Hematology
Thrombosis Research

Background:

Acute coronary syndromes result from thrombosis at disrupted atherosclerotic plaques.
Tissue factor (TF) expression in atherosclerotic lesions and circulating cells promotes thrombus formation.
Systemic procoagulant activity is amplified by TF on monocytes and microparticles.

Purpose of the Study:

To review the role of tissue factor (TF) in acute coronary syndromes.
To discuss the regulatory function of tissue factor pathway inhibitor-1 (TFPI) in thrombosis.
To explore the implications of TFPI degradation during thrombolytic therapy.

Main Methods:

Literature review of studies on TF and TFPI in acute coronary syndromes.
Analysis of mechanisms of TF-mediated procoagulant activity.

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Examination of TFPI's endogenous regulatory role and its inhibition.

Main Results:

TF induces thrombosis in atherosclerotic plaque disruption.
Endogenous TFPI regulates TF activity via translocation into lipid-rich microdomains.
Thrombolytic therapy may lead to a prothrombotic state by degrading TFPI.

Conclusions:

TF plays a significant role in thrombus formation in acute coronary syndromes.
TFPI is a key endogenous inhibitor of TF activity.
Understanding TF and TFPI interactions is critical for managing acute coronary syndromes and optimizing thrombolytic therapy.