Comparative analysis of cestode and human NPC1: evolutive and structural insights for ezetimibe repurposing for the treatment of visceral cestodiases

Author:

Ferreira Henrique Bunselmeyer1,Corá Renato Kulakowski1,Paludo Gabriela Prado1,Paes Jéssica Andrade1

Affiliation:

1. Universidade Federal do Rio Grande do Sul (UFRGS)

Abstract

Abstract

Visceral cestodiases, like cysticercoses and echinococcoses, are caused by cystic larvae from parasites of the Cestoda class and are among the most common human helminthiases. Current therapeutic approaches these diseases are complex and present limitations and risks. Then, new safer and more effective treatments are urgently needed. The Niemann-Pick C1 (NPC1) protein is a cholesterol transporter that is the solely responsible for cholesterol uptake in cestodes. Considering that human NPC1L1 is a known target of ezetimibe, used in the treatment of hypercholesterolemia, it has the potential for repurposing for the treatment of visceral cestodiases. Here, phylogenetic, selective pressure and structural analyses were carried out to assess NPC1 evolutive and structural conservation, especially between cestode and human orthologs. Two NPC1 orthologs were identified in cestode species (NPC1A and NPC1B), which likely underwent functional divergence, leading to the loss of cholesterol transport capacity in NPC1A. Comparative interaction analyses of ezetimibe with human NPC1L1 and cestode NPC1B pointed out to similarities that consolidate the idea of cestode NPC1B as a target for the repurposing of ezetimibe as a drug for the treatment of visceral cestodiases.

Publisher

Research Square Platform LLC

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