Модуляция окислительного стресса в антипаразитарной терапии инвазии Opisthorchis felineus

Abstract

The influence of oxidative stress caused by L-butionine-sulfoximine and hydrogen peroxide on the O. felineus mature forms viability and egg production was determined. Oxidative stress induced by H[2]O[2] at 125 [mu]M and 250 [mu]M did not affect the viability of O. felineus mature forms. Also, it caused a decrease in egg production. After the pre-incubation of O. felineus mature forms with inhibitor of the main antioxidant enzyme (glutathione) synthesis L-butionine-sulfoximine, the hydrogen peroxide leads to the marit cells death at lower concentrations of prooxidant (0.125 and 0.250 mM H[2]O[2]).Thus, [gamma]-glutamylcysteineligase inhibition by L-butionine-sulfoximine leads to an increase in the O. felineus mature forms sensitivity to exogenous reactive oxygen species, which makes it possible to consider this key glutathione synthesis enzyme as a promising potential therapeutic target in the opisthorchiasis treatment.