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Perfusion storage reduces apoptosis in a porcine kidney model of donation after cardiac death. (CROSBI ID 180138)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Jani, A. ; ... ; Pačić, Arijana ; Ljubanović, Danica ; Edelstein C.L. Perfusion storage reduces apoptosis in a porcine kidney model of donation after cardiac death. // Transplantation, 91 (2011), 2; 169-175. doi: 10.1097/TP.0b013e3182013753

Podaci o odgovornosti

Jani, A. ; ... ; Pačić, Arijana ; Ljubanović, Danica ; Edelstein C.L.

engleski

Perfusion storage reduces apoptosis in a porcine kidney model of donation after cardiac death.

Donation after cardiac death (DCD) kidneys suffer a high incidence of delayed graft function attributable to warm ischemia and cold ischemia (CI). Neither the mechanism of injury nor type of cell death has been described. Clinical studies suggest that perfusion storage (PS) of DCD kidneys may reduce injury although the mechanism of protection is unknown. In a porcine model of DCD, we hypothesized that DCD kidneys have increased caspase-1 due to warm ischemia (WI) and increased caspase-3 and apoptosis due to CI. Male Yorkshire pigs subjected to cardiac death were perfused with cold University of Wisconsin solution. The perfused kidneys were removed and stored in cold University of Wisconsin solution for 24 hr. Kidney biopsies were obtained before cardiac death and at 0 and 24 hr of CI. There was an increase in caspase-1 activity due to WI before cold preservation. CI was associated with a massive increase in apoptosis, caspase-3/7 activity, and caspase-3 protein expression. Next, we hypothesized that PS would protect against apoptosis. We compared DCD kidneys subjected to static versus PS for 24 hr. PS significantly reduced proximal tubular apoptosis and was associated with increased B-cell lymphoma-extra large, and hypoxia-inducible transcription factor-1α. These findings suggest that in DCD kidneys, WI preferentially activates caspase-1, whereas CI activates caspase-3 and causes apoptosis. PS may protect DCD kidneys through activation of antiapoptotic pathways involving B-cell lymphoma-extra large and hypoxia-inducible transcription factor-1α.

cardiac death; kidney transplantation; cold ischemia; delayed graft function

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Podaci o izdanju

91 (2)

2011.

169-175

objavljeno

0041-1337

10.1097/TP.0b013e3182013753

Povezanost rada

Temeljne medicinske znanosti

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