9490002 |
Dierickx PJ: Activation by sodium fluoride of drug-metabolizing enzymes in rat hepatoma-derived Fa32 cells. FEBS Lett. 1998 Jan 30;422(2):185-8. Protection against xenobiotic insult, including cancer chemoprotection, can be achieved by a variety of natural and synthetic compounds belonging to over 20 different classes of chemicals. They all induce or activate drug-metabolizing enzymes. The discovery of a new class of activator is currently reported. Sodium fluoride activated the phase I ethoxyresorufin-O-deethylase (to 240%) and pentoxyresorufin-O-depentylase (to 156%), and the phase II glutathione transferase to 120% of the basal activities in rat hepatoma-derived Fa32 cells. It is, therefore, a bifunctional enzyme activator. A time- and concentration-dependent activation was observed. A possible impact of the daily fluoride uptake from drinking water is suggested. |
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