Circulating endothelial progenitor cells inversely associate with organ dysfunction in sepsis

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• 作者：Sushma K. Cribbs (1)
  Diane J. Sutcliffe (2)
  William R. Taylor (2)
  Mauricio Rojas (3)
  Kirk A. Easley (4)
  Li Tang (4)
  Kenneth L. Brigham (5)
  Greg S. Martin (1)
  
• 关键词：Sepsis ; Septic shock ; Endothelium ; Progenitor cells ; SOFA ; Outcomes
• 刊名：Intensive Care Medicine
• 出版年：2012
• 出版时间：March 2012
• 年：2012
• 卷：38
• 期：3
• 页码：429-436
• 全文大小：319KB
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• 作者单位：Sushma K. Cribbs (1)
  Diane J. Sutcliffe (2)
  William R. Taylor (2)
  Mauricio Rojas (3)
  Kirk A. Easley (4)
  Li Tang (4)
  Kenneth L. Brigham (5)
  Greg S. Martin (1)
  
  1. Division of Pulmonary, Allergy, and Critical Care Medicine, Grady Memorial Hospital, Emory University School of Medicine, 49 Jesse Hill Jr Drive, SE (FOB), Pulmonary, Atlanta, GA, 30303, USA
  2. Division of Cardiology, Emory University, Atlanta, GA, USA
  3. Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
  4. Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
  5. Division of Pulmonary, Allergy, and Critical Care Medicine, Emory University, Atlanta, GA, USA
  

文摘

Purpose Endothelial dysfunction is a primary contributor to sepsis-related organ dysfunction and death. In sepsis animal models, endothelial progenitor cells (EPC) have contributed to vascular repair. The role of endothelial progenitor cells as a biomarker for organ dysfunction is still unknown. We hypothesized that circulating numbers of endothelial progenitor cells would be associated with improved outcomes in sepsis. Methods Prospective, observational single-center cohort study in adult intensive care units at Grady Memorial Hospital, an affiliate of Emory University, from July 2007 through April 2009. Peripheral blood was obtained from 95 patients with sepsis, 37 intensive care unit controls, and 51 healthy controls, of whom only 86 patients with sepsis were used in the analysis because we were not able to obtain enough blood in 9 sepsis patients. Clinical data were obtained, and organ dysfunction was measured by Sepsis-Related Organ Failure Assessment (SOFA) score. Endothelial progenitor cells were assessed by a colony-forming unit (CFU) assay in which peripheral blood mononuclear cells were isolated using Ficoll density-gradient centrifugation and cultured in growth media. Results The patients with sepsis had significantly lower mean endothelial progenitor cell colony counts compared with intensive care unit controls (p?=?0.035) and healthy controls (p?=?0.0005). There was no difference in colony counts between ICU controls and healthy controls (p?=?0.81). In the sepsis patients, EPC CFU numbers inversely associated with SOFA score, adjusting for mortality (r 2?=?0.05, p?=?0.04). Conclusion Increased circulating endothelial progenitor cells inversely correlate with organ dysfunction in sepsis patients.