Nitazoxanide Inhibits the Bifunctional Enzyme GlG6PD::6PGL of Giardia lamblia: Biochemical and In Silico Characterization of a New Druggable Target


Por: Martinez-Rosas, Victor, Hernandez-Ochoa, Beatriz, Morales-Luna, Laura, Ortega-Cuellar, Daniel, Gonzalez-Valdez, Abigail, Arreguin-Espinosa, Roberto, Rufino-Gonzalez, Yadira, Calderon-Jaimes, Ernesto, Castillo-Rodriguez, Rosa Angelica, Wong-Baeza, Carlos, Baeza-Ramirez, Isabel, Pérez de la Cruz V., Vidal-Limon, Abraham, Gomez-Manzo, Saul

Publicada: 1 jul 2023
Resumen:
Giardiasis, which is caused by Giardia lamblia infection, is a relevant cause of morbidity and mortality worldwide. Because no vaccines are currently available to treat giardiasis, chemotherapeutic drugs are the main options for controlling infection. Evidence has shown that the nitro drug nitazoxanide (NTZ) is a commonly prescribed treatment for giardiasis; however, the mechanisms underlying NTZ's antigiardial activity are not well-understood. Herein, we identified the glucose-6-phosphate::6-phosphogluconate dehydrogenase (GlG6PD::6PGL) fused enzyme as a nitazoxanide target, as NTZ behaves as a GlG6PD::6PGL catalytic inhibitor. Furthermore, fluorescence assays suggest alterations in the stability of GlG6PD::6PGL protein, whereas the results indicate a loss of catalytic activity due to conformational and folding changes. Molecular docking and dynamic simulation studies suggest a model of NTZ binding on the active site of the G6PD domain and near the structural NADP(+) binding site. The findings of this study provide a novel mechanistic basis and strategy for the antigiardial activity of the NTZ drug.

Filiaciones:
Martinez-Rosas, Victor:
 Laboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, 04530, Mexico

 Programa de Posgrado en Biomedicina y Biotecnología Molecular, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, 11340, Mexico

Hernandez-Ochoa, Beatriz:
 Laboratorio de Inmunoquímica, Hospital Infantil de México Federico Gómez, Secretaría de Salud, Mexico City, 06720, Mexico

Morales-Luna, Laura:
 Laboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, 04530, Mexico

 Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico

Ortega-Cuellar, Daniel:
 Laboratorio de Nutrición Experimental, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, 04530, Mexico

Gonzalez-Valdez, Abigail:
 Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico

Arreguin-Espinosa, Roberto:
 Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico

Rufino-Gonzalez, Yadira:
 Laboratorio de Parasitología Experimental, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, 04530, Mexico

Calderon-Jaimes, Ernesto:
 Laboratorio de Inmunoquímica, Hospital Infantil de México Federico Gómez, Secretaría de Salud, Mexico City, 06720, Mexico

Castillo-Rodriguez, Rosa Angelica:
 CICATA Unidad Morelos, Instituto Politécnico Nacional, Boulevard de la Tecnología, 1036 Z-1, P 2/2, Atlacholoaya, 62790, Mexico

Wong-Baeza, Carlos:
 Laboratorio de Biomembranas, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, 11340, Mexico

Baeza-Ramirez, Isabel:
 Laboratorio de Biomembranas, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, 11340, Mexico

Pérez de la Cruz V.:
 Neurobiochemistry and Behavior Laboratory, National Institute of Neurology and Neurosurgery “Manuel Velasco Suárez”, Mexico City, 14269, Mexico

Vidal-Limon, Abraham:
 Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Instituto de Ecología A.C. (INECOL), Carretera Antigua a Coatepec 351, El Haya, Xalapa, 91073, Mexico

Gomez-Manzo, Saul:
 Laboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, 04530, Mexico
ISSN: 16616596





INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Editorial
MDPI AG, POSTFACH, CH-4005 BASEL, SWITZERLAND, Suiza
Tipo de documento: Article
Volumen: 24 Número: 14
Páginas:
WOS Id: 001038685600001
ID de PubMed: 37511272
imagen gold, All Open Access; Gold

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