Triclabendazole inhibits succinate dehydrogenase in vitro
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Succinate dehydrogenase (SDH, complex II), is essential for mitochondrial respiration. This study shows that triclabendazole and its primary metabolites inhibit SDH activity in mitochondria of the cestode Echinococcus multilocularis , while other tested benzimidazoles do not. Further analyses revealed that triclabendazole and metabolites also inhibit SDH in mitochondria of additional helminths (trematodes, nematodes) and mammalian cells. These findings indicate a shared mode of action and highlight potential safety risks associated with long-term triclabendazole treatment in mammals.
