Exogenous spermidine ameliorates tubular necrosis during cisplatin nephrotoxicity / 대한해부학회지
Anatomy & Cell Biology
; : 189-199, 2018.
Article
em En
| WPRIM
| ID: wpr-717223
Biblioteca responsável:
WPRO
ABSTRACT
The hallmark of cisplatin-induced acute kidney injury is the necrotic cell death in the kidney proximal tubules. However, an effective approach to limit cisplatin nephrotoxicity remains unknown. Spermidine is a polyamine that protects against oxidative stress and necrosis in aged yeasts, and the present study found that exogenous spermidine markedly attenuated tubular necrosis and kidney dysfunction, but not apoptosis, during cisplatin nephrotoxicity. In addition, exogenous spermidine potently inhibited oxidative/nitrative DNA damage, poly(ADP-ribose) polymerase 1 (PARP1) activation and ATP depletion after cisplatin injection. Conversely, inhibition of ornithine decarboxylase (ODC) via siRNA transfection in vivo significantly increased DNA damage, PARP1 activation and ATP depletion, resulting in acceleration of tubular necrosis and kidney dysfunction. Finally, exogenous spermidine removed severe cisplatin injury induced by ODC inhibition. In conclusion, these data suggest that spermidine protects kidneys against cisplatin injury through DNA damage and tubular necrosis, and this finding provides a novel target to prevent acute kidney injury including nephrotoxicity.
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Texto completo:
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Índice:
WPRIM
Assunto principal:
Ornitina Descarboxilase
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Leveduras
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Dano ao DNA
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Transfecção
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Peroxidação de Lipídeos
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Espermidina
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Trifosfato de Adenosina
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Cisplatino
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Morte Celular
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Poli(ADP-Ribose) Polimerases
Idioma:
En
Revista:
Anatomy & Cell Biology
Ano de publicação:
2018
Tipo de documento:
Article