Abstract Title:

Protective effect of sulforaphane against cisplatin-induced mitochondrial alterations and impairment in the activity of NAD(P)H: quinone oxidoreductase 1 andγ glutamyl cysteine ligase: studies in mitochondria isolated from rat kidney and in LLC-PK1 cells.

Abstract Source:

Toxicol Lett. 2010 Nov 10;199(1):80-92. Epub 2010 Aug 21. PMID: 20732396

Abstract Author(s):

Carlos Enrique Guerrero-Beltrán, Mariel Calderón-Oliver, Eduardo Martínez-Abundis, Edilia Tapia, Guillermo Zarco-Márquez, Cecilia Zazueta, José Pedraza-Chaverri

Article Affiliation:

Departamento de Biología, Facultad de Química, Edificio F, Lab 209, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico.


This work was designed to further study the mechanism by which sulforaphane (SFN) exerts a renoprotective effect against cisplatin (CIS)-induced damage. It was evaluated whether SFN attenuates the CIS-induced mitochondrial alterations and the impairment in the activity of the cytoprotective enzymes NAD(P)H: quinone oxidoreductase 1 (NQO1) andγ glutamyl cysteine ligase (γGCL). Studies were performed in renal epithelial LLC-PK1 cells and in isolated renal mitochondria from CIS, SFN or CIS+SFN treated rats. SFN effectively prevented the CIS-induced increase in reactive oxygen species (ROS) production and the decrease in NQO1 and γGCL activities and in glutathione (GSH) content. The protective effect of SFN on ROS production and cell viability was prevented by buthionine sulfoximine (BSO), an inhibitor of γGCL, and by dicoumarol, an inhibitor of NQO1. SFN was also able to prevent the CIS-induced mitochondrial alterations both in LLC-PK1 cells (loss of membrane potential) and in isolated mitochondria (inhibition of mitochondrial calcium uptake, release of cytochrome c, and decrease in GSH content, aconitase activity, adenosine triphosphate (ATP) content and oxygen consumption). It is concluded that the protection exerted by SFN on mitochondrial alterations and NQO1 and γGCL enzymes may be involved in the renoprotection of SFN against CIS.

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