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Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/123456789/2084

Título : Cytotoxic effects of N´-formyl-2-(5-nitrothiophen-2-yl)benzothiazole-6-carbohydrazide in human breast tumor cells by induction of oxidative stress
Autor : Rodrigues, Juan
Charris, jaime
Camacho, José
Barazarte, Arthur
Gamboa, Neira
Antunes, Fernando
Palabras clave : Oxidative stress
benzothiazole
glutathione reductase
antitumor
antioxidant
MCF7
Fecha de publicación : 24-May-2012
Editorial : Anticancer Research
Resumen : Chemically active molecules, such as reactive oxygen species (ROS), are prone to induce cellular damage by oxidative stress and this could be exploited as a strategy to kill malignant cells. In this study, we evaluated the antitumor activity of a new compound, N’-formyl-2-(5- nitrothiophen-2-yl)benzothiazole-6-carbohydrazide (FBZC) by assessing its pro-oxidant effects on breast cancer in vitro. Oxidative stress, generated by FBZC, was characterized by measuring reactive species and antioxidant enzymes and markers. Results showed that the cytotoxic effects of FBZC on MCF7 breast cancer cells (half inhibitory concentration of 5.4 μg/ml), were partially reversed by the addition of regular antioxidants. FBZC induced ROS and lipid peroxidation, together with a significant inhibition of superoxide dismutase, glutathione reductase and total glutathione levels as well as increases in catalase and glutathione-S-transferase activities, in an acute fast response. Thus, the antitumor effects of FBZC could be related to oxidative deregulation due to a combination of induction of ROS generation and inhibition of key antioxidant enzymes.
URI : http://saber.ucv.ve/123456789/2084
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