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Rivero, Cynthia Vanesa; Martínez, Santiago José; Novick, Paul; Cueto, Juan Agustín; Salassa, Betiana Nebaí; Vanrell, María Cristina; Li, Xiaomo; Labriola, Carlos Alberto; Polo, Luis Mariano; Engman, David M.; Clos, Joachim; Romano, Patricia Silvia
Frontiers in cellular and infection microbiology, 08/2021, Letnik: 11Journal Article
T. cruzi , the causal agent of Chagas disease, is a parasite able to infect different types of host cells and to persist chronically in the tissues of human and animal hosts. These qualities and the lack of an effective treatment for the chronic stage of the disease have contributed to the durability and the spread of the disease around the world. There is an urgent necessity to find new therapies for Chagas disease. Drug repurposing is a promising and cost-saving strategy for finding new drugs for different illnesses. In this work we describe the effect of carvedilol on T. cruzi . This compound, selected by virtual screening, increased the accumulation of immature autophagosomes characterized by lower acidity and hydrolytic properties. As a consequence of this action, the survival of trypomastigotes and the replication of epimastigotes and amastigotes were impaired, resulting in a significant reduction of infection and parasite load. Furthermore, carvedilol reduced the whole-body parasite burden peak in infected mice. In summary, in this work we present a repurposed drug with a significant in vitro and in vivo activity against T. cruzi . These data in addition to other pharmacological properties make carvedilol an attractive lead for Chagas disease treatment.
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