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Endothelial cell protein C receptor: a multiliganded and multifunctional receptor

Mohan Rao, L. Vijaya, Esmon, Charles T., Pendurthi, Usha R.·2014·Blood
DOI 10.1182/blood-2014-05-578328
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Abstract

Endothelial cell protein C receptor (EPCR) was first identified and isolated as a cellular receptor for protein C on endothelial cells. EPCR plays a crucial role in the protein C anticoagulant pathway by promoting protein C activation. In the last decade, EPCR has received wide attention after it was discovered to play a key role in mediating activated protein C (APC)-induced cytoprotective effects, including antiapoptotic, anti-inflammatory, and barrier stabilization. APC elicits cytoprotective signaling through activation of protease activated receptor-1 (PAR1). Understanding how EPCR-APC induces cytoprotective effects through activation of PAR1, whose activation by thrombin is known to induce a proinflammatory response, has become a major research focus in the field. Recent studies also discovered additional ligands for EPCR, which include factor VIIa, Plasmodium falciparum erythrocyte membrane protein, and a specific variant of the T-cell receptor. These observations open unsuspected new roles for EPCR in hemostasis, malaria pathogenesis, innate immunity, and cancer. Future research on these new discoveries will undoubtedly expand our understanding of the role of EPCR in normal physiology and disease, as well as provide novel insights into mechanisms for EPCR multifunctionality. Comprehensive understanding of EPCR may lead to development of novel therapeutic modalities in treating hemophilia, inflammation, cerebral malaria, and cancer.

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Metadata

Authors
Mohan Rao, L. V., Esmon, C. T., & Pendurthi, U. R.
Venue
Blood
Publisher
American Society of Hematology
Published
2014-09-04
Volume
124
Issue
10
Pages
1553-1562
ISSN
  • 0006-4971
  • 1528-0020
DOI
10.1182/blood-2014-05-578328
Cited by
203
References
2
Language
en

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