The effect of aristolochic acid I on expression of NAD(P)H:quinone oxidoreductase in mice and rats—A comparative study

作者: František Bárta , Kateřina Levová , Eva Frei , Heinz H. Schmeiser , Volker M. Arlt

DOI: 10.1016/J.MRGENTOX.2014.01.012

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摘要: Abstract Aristolochic acid is the cause of aristolochic nephropathy (AAN) and Balkan endemic (BEN) their associated urothelial malignancies. Using Western blotting, we investigated expression NAD(P)H:quinone oxidoreductase (NQO1), most efficient cytosolic enzyme that reductively activates I (AAI) in mice rats. In addition, effect AAI on NQO1 protein its enzymatic activity these experimental animal models was examined. We found levels fractions isolated from liver, kidney lung differed those expressed organs mice, highest were kidney, followed by liver. contrast, lowest rat-kidney cytosol, whereas amounts cytosols, induced liver AAI-pretreated compared with untreated mice. also rat AAI. Furthermore, increase hepatic renal bio-activation elevated AAI-DNA adduct ex vivo incubations DNA conclusion, our results indicate can own metabolic activation inducing NQO1, thereby enhancing genotoxic potential.

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