Levosimendan protects human hepatocytes from ischemia-reperfusion injury
Background Ischemia-reperfusion injury (IRI) is a major challenge in liver transplantation. The mitochondrial pathway plays a pivotal role in hepatic IRI. Levosimendan, a calcium channel sensitizer, was shown to attenuate apoptosis after IRI in animal livers. The aim of this study was to investigate...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
November 16, 2017
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| In: |
PLOS ONE
Year: 2017, Jahrgang: 12, Heft: 11 |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0187839 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1371/journal.pone.0187839 Verlag, kostenfrei, Volltext: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0187839 
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| Verfasserangaben: | Stefanie N. Brunner, Nicolai V. Bogert, Andreas A. Schnitzbauer, Eva Juengel, Anton Moritz, Isabella Werner, Angela Kornberger, Andres Beiras-Fernandez |
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| 245 | 1 | 0 | |a Levosimendan protects human hepatocytes from ischemia-reperfusion injury |c Stefanie N. Brunner, Nicolai V. Bogert, Andreas A. Schnitzbauer, Eva Juengel, Anton Moritz, Isabella Werner, Angela Kornberger, Andres Beiras-Fernandez |
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| 520 | |a Background Ischemia-reperfusion injury (IRI) is a major challenge in liver transplantation. The mitochondrial pathway plays a pivotal role in hepatic IRI. Levosimendan, a calcium channel sensitizer, was shown to attenuate apoptosis after IRI in animal livers. The aim of this study was to investigate the effect of levosimendan on apoptosis in human hepatocytes. Methods Primary human hepatocytes were either exposed to hypoxia or cultured under normoxic conditions. After the hypoxic phase, reoxygenation was implemented and cells were treated with different concentrations of levosimendan (10ng/ml, 100ng/ml, 1000ng/ml). The overall metabolic activity of the cells was measured using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), and aspartate aminotransferase (AST) levels were determined in order to quantify hepatic injury. Fluorescence-activated cell sorting (FACS) analysis was applied to measure necrosis and apoptosis. Finally, Western blotting was performed to analyze apoptotic pathway proteins. Results Administration of levosimendan during reperfusion increases the metabolic activity of human hepatocytes and decreases AST levels. Moreover, apoptosis after IRI is reduced in treated vs. untreated hepatocytes, and levosimendan prevents down-regulation of the anti-apoptotic protein Bcl-2 as well as up-regulation of the pro-apoptotic protein BAX. Conclusion The present study suggests a protective effect of levosimendan on human hepatocytes. Our findings suggest that treatment with levosimendan during reperfusion attenuates apoptosis of human hepatocytes by influencing BAX and Bcl-2 levels. | ||
| 650 | 4 | |a Apoptosis | |
| 650 | 4 | |a Cell metabolism | |
| 650 | 4 | |a Heart failure | |
| 650 | 4 | |a Hepatocytes | |
| 650 | 4 | |a Liver transplantation | |
| 650 | 4 | |a Mitochondria | |
| 650 | 4 | |a MTT assay | |
| 650 | 4 | |a Reperfusion | |
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