ABSTRACT
The phosphodiesterase inhibitor tetrahydrophthalazinone NPD-008 was explored by phenotypic in vitro screening, target validation, and ultrastructural approaches against Trypanosoma cruzi. NPD-008 displayed activity against different forms and strains of T. cruzi (50% effective concentration [EC50], 6.6 to 39.5 μM). NPD-008 increased cAMP levels of T. cruzi and its combination with benznidazole gave synergistic interaction. It was also moderately active against intracellular amastigotes of Leishmania amazonensis and Leishmania infantum, confirming a potential activity profile as an antitrypanosomatid drug candidate.
- Copyright © 2021 American Society for Microbiology.
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