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Semin Thromb Hemost 2010; 36(8): 865-875
DOI: 10.1055/s-0030-1267040
© Thieme Medical Publishers

Tissue Factor and Its Measurement in Whole Blood, Plasma, and Microparticles

Nigel S. Key1 , Nigel Mackman1
  • 1Division of Hematology/Oncology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
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Publication History

Publication Date:
03 November 2010 (online)

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ABSTRACT

Tissue factor (TF) is a transmembrane protein that initiates coagulation following contact with factor VII/VIIa. Recent experimental evidence, in particular from animal models, suggests an important role for circulating TF in thrombosis. This has led to a growing interest in the measurement of TF in whole blood and in cell-free plasma, where functionally active TF is carried on cell-derived microparticles. In this review, we address the range of assays for measuring circulating TF antigen and activity that have been published. We comment on some of the crucial preanalytical and analytical variables that influence the results and their interpretation.

KEYWORDS

Microparticle - tissue factor - thrombosis - whole blood - plasma

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Nigel S KeyM.D. 

Harold R Roberts Distinguished Professor, Division of Hematology/Oncology, 932 Mary Ellen Jones Building

CB #7035, Chapel Hill, NC 27599

Email: Nigel_key@med.unc.edu

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