期刊
THROMBOSIS RESEARCH
卷 130, 期 -, 页码 S71-S73出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.thromres.2012.08.281
关键词
Tissue factor; Microparticles; Exosomes; Cancer; Extracellular vesicles
资金
- Dutch Thrombosis Foundation [TSN 2010-2]
- European Metrology Research Programme [HLT02 METVES]
Coagulation is initiated by tissue factor (TF). Coagulant TF is constitutively expressed by extravascular cells, but there is increasing evidence that TF can also be present within the blood, in particular during pathological conditions. Such TF is exposed on circulating cell-derived vesicles, and its presence has been associated with development of disseminated intravascular coagulation and venous thrombosis. For example, the presence of TF-exposing vesicles in the blood of cancer patients may be associated with their high risk of developing venous thromboembolism. Remarkably, high levels of coagulant TF-exposing vesicles are present in other body fluids such as saliva and urine of healthy persons, suggesting that these vesicles play a physiological role. We postulate that the presence of TF-exposing vesicles in body fluids as saliva and urine provides an additional source of coagulant TF that promotes coagulation, thereby reducing blood loss and contributing to host defence by reducing the risk of microorganisms entering the milieu interieur. (C) 2012 Elsevier Ltd. All rights reserved.
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