Abstract
Sepsis is a serious disorder with high morbidity and mortality worldwide and an increasing incidence [1]. Sepsis is the result of an overwhelming and maladaptive response of the host organism to the invasion of pathogenic microorganisms, which generates an uncontrolled and auto-destructive inflammatory process [2]. The septic syndrome carries various degrees of severity, and critically ill patients often develop sepsis-induced acute organ dysfunction (i.e., severe sepsis) and fluid-refractory hypotension (i.e., septic shock). Extensive research performed during the past two decades has greatly improved our understanding of the mechanisms underlying sepsis pathophysiology: Widespread devastating inflammation and microvascular coagulation are common denominators in severe sepsis, while endothelial cell dysfunction appears to be a key determinant in the development of the syndrome [3, 4].
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References
Martin GS, Mannini DM, Eaton S, Moss M (2003) The epidemiology of sepsis in the United States from 1979 through 2000. N Engl J Med 348: 1546–1554
Cinel I, Dellinger RP (2007) Advances in pathogenesis and management of sepsis. Curr Opin Infect Dis 20: 345–352
Abraham E, Singer M (2007) Mechanisms of sepsis-induced organ dysfunction. Crit Care Med 35: 2408–2416
Aird WC (2004) Endothelium as an organ system. Crit Care Med 32: S271–S279
Aird WC (2007) Phenotypic heterogeneity of the endothelium: II. Representative vascular beds. Circ Res 100: 174–190
Orfanos SE, Mavrommati I, Korovesi I, Roussos C (2004) Pulmonary endothelium in acute lung injury: from basic science to the critically ill. Intensive Care Med 30: 1702–1714
Mosnier LO, Zlokovic BV, Griffin JH (2007) The cytoprotective protein C pathway. Blood 109: 3161–3172
Looney MR, Matthay MA (2006) Bench-to-bedside review: The role of activated protein C in maintaining endothelial tight junction function and its relationship to organ injury. Crit Care 10: 239
Bernard GR, Vincent JL, Laterre PF, et al (2001) Efficacy and safety of recombinant human activated protein C for severe sepsis. N Engl J Med 344: 699–709
Esmon CT (2004) Structure and functions of the endothelial cell protein C receptor. Crit Care Med 32 (suppl): S298–S301
Thiyagarajan M, Cheng T, Zlokovic BV (2007) Endothelial cell protein C receptor. Role beyond endothelium? Circ Res 100: 155–157
Bretschneider E, Uzonyi B, Weber AA, et al (2007) Human vascular smooth muscle cells express functionally active endothelial cell protein C receptor. Circ Res 100: 255–262
Zheng X, Li W, Song Y, et al (2007) Non-hematopoietic EPCR regulates the coagulation and inflammatory responses during endotoxemia. J Thromb Haemost 5: 1394–1400
Bastarache JA, Ware LB, Bernard GR (2006) The role of the coagulation cascade in the continuum of sepsis and acute lung injury and acute respiratory distress syndrome. Semin Respir Crit Care Med 27: 365–376
Villegas-Mendez A, Montes R, Ambrose LR, Warrens AN, Laffan M, Lane DA (2007) Proteolysis of the endothelial cell protein C receptor by neutrophil proteinase 3. J Thromb Haemost 5: 980–988
Weijer S, Wieland CW, Florquin S, Van der Poll T (2007) A thrombomodulin mutation that impairs activated protein C generation results in uncontrolled lung inflammation during murine tuberculosis. Blood 106: 2761–2768
Scaldaferri F, Sans M, Vetrano S, et al (2007) Crucial role of the protein C pathway in governing microvascular inflammation in inflammatory bowel disease. J Clin Invest 117: 1951–1960
Griffin JH, Fernandez JA, Gale AJ, Mosnier LO (2007) Activated protein C. J Thromb Haemost 5(suppl l):73–80
Riewald M, Petrovan RJ, Donner A, Mueller BM, Ruf W (2002) Activation of endothelial cell protease activated receptor 1 by the protein C pathway. Science 296: 1880–1882
Coughlin SR, Camerer E (2003) Participation in inflammation. J Clin Invest 111: 25–27
Ruf W (2005) Is APC activation of endothelial cell PAR1 important in severe sepsis?: Yes. J Thromb Haemost 3: 1912–1914
Joyce DE, Gelbert L, Ciaccia A, DeHoff B, Grinnell BW (2001) Gene expression profile of antithrombotic protein C defines new mechanisms modulating inflammation and apoptosis. J Biol Chem 276: 11199–11203
Joyce DE, Grinnell BW (2002) Recombinant human activated protein C attenuates the inflammatory response in endothelium and monocytes by modulating nuclear factor-KB. Crit Care Med 30 (suppl): S288–S293
Brueckmann M, Horn S, Lang S, et al (2005) Recombinant human activated protein C upregulates cyclooxygenase-2 expression in endothelial cells via binding to endothelial cell protein C receptor and activation of protease-activated receptor-1. Thromb Haemost 93: 743–750
Isobe H, Okajima K, Uchiba M, et al (2001) Activated protein C prevents endotoxin-induced hypotension in rats by inhibiting excessive production of nitric oxide. Circulation 104: 1171–1175
Mosnier LO, Griffin JH (2003) Inhibition of staurosporine-induced apoptosis of endothelial cells by activated protein C requires protease-activated receptor-1 and endothelial cell protein C receptor. Biochem J 373: 65–70
Cheng T, Liu D, Griffin JH (2003) Activated protein C blocks p53-mediated apoptosis in ischemic human brain endothelium and is neuroprotective. Nat Med 9: 338–342
Zeng W, Matter WF, Yan SB, Urn SL, Vlachos CJ, Liu L (2004) Effect of drotrecogin alfa (activated) on human endothelial cell permeability and Rho kinase signaling. Crit Care Med 32 (suppl): S302–S308
Finigan JH, Dudek SM, Singleton PA, et al (2005) Activated protein C mediates novel lung endothelial barrier enhancement. Role of sphingosine 1-phopshate receptor transactivation. J Biol Chem 280: 17286–17293
Feistritzer C, Riewald M (2005) Endothelial barrier protection by activated protein C through PAR-1-dependent sphingosine 1-phopshate receptor-1 crossactivation. Blood 105: 3178–3184
Matthay MA, Zimmerman GA, Esmon C, et al (2003) Future research directions in acute lung injury. Summary of a National Heart, Lung and Blood Institute working group. Am J Respir Crit Care Med 167: 1027–1035
Murakami K, Okajima K, Uchiba M, et al (1996) Activated protein C attenuates endotoxininduced pulmonary vascular injury by inhibiting activated leukocytes in rats. Blood 87: 642–647
Nick JA, Coldren CD, Geraci MW, et al (2004) Recombinant human activated protein C reduces human endotoxin-induced pulmonary inflammation via inhibition of neutrophil chemotaxis. Blood 104: 3878–3885
Van der Poll T, Levi M, Nick JA, Abraham E (2005) Activated protein C inhibits local coagulation after intrapulmonary delivery of endotoxin in humans. Am J Respir Crit Care Med 171: 1125–1128
Kotanidou K, Loutrari H, Papadomichelakis E, et al (2006) Inhaled activated protein C attenuates lung injury induced by aerosolized endotoxin in mice. Vascul Pharmacol 45: 134–140
Slofstra SH, Groot AP, Maris NA, et al (2006) Inhalation of activated protein C inhibits endotoxin-induced pulmonary inflammation in mice independent of neutrophil recruitment. Br J Pharmacol 149: 740–746
Kerschen EJ, Fernandez JA, Cooley BC, et al (2007) Endotoxemia and sepsis mortality reduction by non-anticoagulant-activated protein C. J Exp Med 204: 2439–2448
Regnault V, Levy B (2007) Commentary. Recombinant activated protein C in sepsis: endothelium protection or endothelium therapy? Crit Care 11: 103
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Orfanos, S.E., Maniatis, N.A., Kotanidou, A. (2008). The Effects of Activated Protein C on the Septic Endothelium. In: Vincent, JL. (eds) Intensive Care Medicine. Springer, New York, NY. https://doi.org/10.1007/978-0-387-77383-4_67
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DOI: https://doi.org/10.1007/978-0-387-77383-4_67
Publisher Name: Springer, New York, NY
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