VCAM-1 expression is upregulated by CD34+/CD133+-stem cells derived from septic patients
CD34+/CD133+- cells are a bone marrow derived stem cell population, which presumably contain vascular progenitor cells and are associated with improved vascular repair. In this study, we investigated whether the adhesion molecules ICAM-1 (intercellular adhesion molecule-1), VCAM-1 (vascular adhesion...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
March 30, 2018
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| In: |
PLOS ONE
Year: 2018, Jahrgang: 13, Heft: 3 |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0195064 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1371/journal.pone.0195064 Verlag, kostenfrei, Volltext: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0195064 
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| Verfasserangaben: | Christian Patry, Christoph Remmé, Christian Betzen, Burkhard Tönshoff, Benito A. Yard, Grietje Beck, Neysan Rafat |
MARC
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| 245 | 1 | 0 | |a VCAM-1 expression is upregulated by CD34+/CD133+-stem cells derived from septic patients |c Christian Patry, Christoph Remmé, Christian Betzen, Burkhard Tönshoff, Benito A. Yard, Grietje Beck, Neysan Rafat |
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| 520 | |a CD34+/CD133+- cells are a bone marrow derived stem cell population, which presumably contain vascular progenitor cells and are associated with improved vascular repair. In this study, we investigated whether the adhesion molecules ICAM-1 (intercellular adhesion molecule-1), VCAM-1 (vascular adhesion molecule-1), E-selectin und L-selectin, which are involved in homing of vascular stem cells, are upregulated by CD34+/CD133+-stem cells from septic patients and would be associated with improved clinical outcome. Peripheral blood mononuclear cells from intensive care unit (ICU) patients with (n = 30) and without sepsis (n = 10), and healthy volunteers (n = 15) were isolated using Ficoll density gradient centrifugation. The expression of VCAM-1, ICAM-1, E-selectin and L-selectin was detected on CD34+/CD133+-stem cells by flow cytometry. The severity of disease was assessed by the Simplified Acute Physiology Score (SAPS) II. Serum concentrations of vascular endothelial growth factor (VEGF) and angiopoietin (Ang)-2 were determined by Enzyme-linked immunosorbent assay. The expression of VCAM-1, ICAM-1, E-selectin and L-selectin by CD34+/CD133+-stem cells was significantly upregulated in septic patients, and correlated with sepsis severity. Furthermore, high expression of VCAM-1 by CD34+/CD133+-stem cells revealed a positive association with mortalitiy (p<0.05). Furthermore, significantly higher serum concentrations of VEGF and Ang-2 were found in septic patients, however none showed a strong association with survival. Our data suggest, that VCAM-1 upregulation on CD34+/CD133+-stem cells could play a crucial role in their homing in the course of sepsis. An increase in sepsis severity resulted in both and increase in CD34+/CD133+-stem cells and VCAM-1-expression by those cells, which might reflect an increase in need for vascular repair. | ||
| 650 | 4 | |a Adhesion molecules | |
| 650 | 4 | |a Enzyme assays | |
| 650 | 4 | |a Flow cytometry | |
| 650 | 4 | |a Growth factors | |
| 650 | 4 | |a Intensive care units | |
| 650 | 4 | |a Sepsis | |
| 650 | 4 | |a Stem cells | |
| 650 | 4 | |a White blood cells | |
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