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Updated: Aug 24, 2026

Extracellular Vesicle Tissue Factor Activity Assay
Published on: December 29, 2023
Tissue factor and tissue factor pathway inhibitor
G C Price1, S A Thompson, P C A Kam
1Intensive Care Unit, University of New South Wales at St George Hospital, Kogarah, NSW 2217, Australia.
Abstract:
The classical 'cascade/waterfall' hypothesis formulated to explain in vitro coagulation organised the amplification processes into the intrinsic and extrinsic pathways. Recent molecular biology and clinical data indicate that tissue factor/factor-VII interaction is the primary cellular initiator of coagulation in vivo. The process of blood coagulation is divided into an initiation phase followed by a propagation phase. The discovery of tissue factor pathway inhibitor further supports the revised theory of coagulation. Tissue factor is also a signalling receptor. Recent evidence has shown that blood-borne tissue factor has an important procoagulant function in sepsis, atherosclerosis and cancer, and other functions beyond haemostasis such as immune function and metastases.
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