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European journal of medicinal chemistry

An in vitro and in vivo evaluation of new potential trans-sialidase inhibitors of Trypanosoma cruzi predicted by a computational drug repositioning method.


PMID 28364659

Abstract

Chagas disease is one of the most important neglected parasitic diseases afflicting developed and undeveloped countries. There are currently limited options for inexpensive and secure pharmacological treatment. In this study, we employed a structure-based virtual screening protocol for 3180 FDA-approved drugs for repositioning of them as potential trans-sialidase inhibitors. In vitro and in vivo evaluations were performed for the selected drugs against trypomastigotes from the INC-5 and NINOA strains of T. cruzi. Also, inhibition of sialylation by the trans-sialidase enzyme reaction was evaluated using high-performance anion-exchange chromatography with pulse amperometric detection to confirm the mechanism of action. Results from the computational study showed 38 top drugs with the best binding-energies. Four compounds with antihistaminic, anti-hypertensive, and antibiotic properties showed better trypanocidal effects (LC

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