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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Mitochondrial activity after cold preservation of pancreatic islet cells treated with pefloxacin (PFX).

Mitochondrial energetic and oxidative dysfunctions caused by free radical production trigger release of proinflammatory cytokines involved in organ rejection. The aim of this study was to investigate the role of a fluoroquinolone drug, pefloxacin (PFX) and those of various cold preservation solutions on pancreatic beta cell viability. Our data clearly demonstrate that islet cell viability, as determined by glucose-stimulated insulin secretion, is directly correlated with reduced expression of microsomal cytochrome P-450IIIA. Moreover, IL-2, a known mediator of apoptosis was found to be downregulated, whereas TNF-alpha had been upregulated for the first 18 hours after pefloxacin administration. These results demonstrate that pefloxacin downregulates the expression of cytochrome P-450IIIA isozyme and regulates the production of TNF-alpha and IL-2. Thus, we postulate that the presence of pefloxacin in the pancreatic islet cells before organ preservation facilitates increased cell viability.[1]

References

  1. Mitochondrial activity after cold preservation of pancreatic islet cells treated with pefloxacin (PFX). Puc, J., Kwiatkowski, P., Pacanowski, J., Rotbart-Fiedor, M., Wardawa, A., Mazurek, A.P., Rowinski, W., Hardy, M.A., Fiedor, P. Ann. Transplant. (1998) [Pubmed]
 
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