Abstract
The protein C anticoagulant pathway serves as a vitally important system limiting the coagulation response. The pathway is triggered by thrombin allowing the trombin-thrombomodulin (TM)-endothelial protein C receptor (EPCR) complex to activate protein C. The discovery of the protein C pathway and genetic defects affecting the system in relation to the risk of venous thrombosis directed most research attention towards its anti-coagulatory properties. The observation that activated protein C (APC) has potentially important functions in controlling inflammation and functioning as a natural defence against sepsis, redirected research into its cellular functions. Intracellular signaling effects in endothelial cells induced by APC depend on the presence of the endothelial protein C receptor and protease activated receptor-1 and involves a variety of distinct signal transduction pathways engaged in various biological activities. However, the exact mechanism by which the protein C pathway controls inflammation during sepsis and to what extend the signaling capacity of APC contributes to its pro-survival effects remains elusive. Other essential factors of the protein C pathway, like EPCR and TM may themselves be directly involved in regulating inflammation, underlining the importance of the complete pathway.
Keywords: Activated protein C pathway, regulation of coagulation, intracellular signaling effects, endothelial protein C receptor, thrombomodulin, fibrinolysis, sepsis
Current Genomics
Title: Perspectives of Activated Protein C in the Vasculature: Update on Proposed Roles of the Protein C Pathway
Volume: 6 Issue: 6
Author(s): S. H. Slofstra and H. T. Cate
Affiliation:
Keywords: Activated protein C pathway, regulation of coagulation, intracellular signaling effects, endothelial protein C receptor, thrombomodulin, fibrinolysis, sepsis
Abstract: The protein C anticoagulant pathway serves as a vitally important system limiting the coagulation response. The pathway is triggered by thrombin allowing the trombin-thrombomodulin (TM)-endothelial protein C receptor (EPCR) complex to activate protein C. The discovery of the protein C pathway and genetic defects affecting the system in relation to the risk of venous thrombosis directed most research attention towards its anti-coagulatory properties. The observation that activated protein C (APC) has potentially important functions in controlling inflammation and functioning as a natural defence against sepsis, redirected research into its cellular functions. Intracellular signaling effects in endothelial cells induced by APC depend on the presence of the endothelial protein C receptor and protease activated receptor-1 and involves a variety of distinct signal transduction pathways engaged in various biological activities. However, the exact mechanism by which the protein C pathway controls inflammation during sepsis and to what extend the signaling capacity of APC contributes to its pro-survival effects remains elusive. Other essential factors of the protein C pathway, like EPCR and TM may themselves be directly involved in regulating inflammation, underlining the importance of the complete pathway.
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Cite this article as:
Slofstra H. S. and Cate T. H., Perspectives of Activated Protein C in the Vasculature: Update on Proposed Roles of the Protein C Pathway, Current Genomics 2005; 6 (6) . https://dx.doi.org/10.2174/138920205774482963
DOI https://dx.doi.org/10.2174/138920205774482963 |
Print ISSN 1389-2029 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5488 |
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