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La desregulación de MYC sensibiliza a las células cancerosas a la inhibición de la N-miristoiltransferasa

Gregor A Lueg¹, James Zhang², Monica Faronato¹

¹Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, 82 Wood Lane, W12 0BZ London, UK; The Francis Crick Institute, 1 Midland Road, NW1 1AT London, UK.

|August 24, 2025

Resumen

Las N-miristoiltransferasas humanas (NMTs) son objetivos del cáncer. La inhibición de las NMT con IMP-1320 muestra que los cánceres impulsados por MYC son sensibles, lo que lleva a la disfunción mitocondrial y la supresión tumoral sin toxicidad.

Área de la Ciencia:

La bioquímica
Biología molecular
En el campo de la oncología

Sus antecedentes:

Las N-miristoiltransferasas humanas (NMT) catalizan la N-miristoilación de las proteínas.
Los NMT son objetivos emergentes para la terapia del cáncer.
La desregulación MYC está implicada en varios tipos de cáncer.

Objetivo del estudio:

Para examinar los inhibidores de la NMT (NMTis) a través de líneas celulares de cáncer.
Identificar los mecanismos que vinculan la desregulación del MYC con la sensibilidad al NMTi.
Evaluar la NMT como una estrategia terapéutica para los cánceres impulsados por el MYC.

Principales métodos:

Cribado de 245 líneas celulares de cáncer con el inhibidor de la NMT IMP-1320.
Análisis a nivel de trayectoria para evaluar el impacto de la desregulación MYC.
Proteómica en las fracciones de membrana de las células desreguladas por MYC/MYCN.
Estudios de supresión de tumores en vivo.

Principales resultados:

El MYC desregulado aumenta la sensibilidad de las células cancerosas al NMTis.
La inhibición de la NMT conduce a la pérdida de la asociación de la membrana del complejo respiratorio I mitocondrial.
Esto está relacionado con la degradación de NDUFAF4 y la disfunción mitocondrial.
La NMT suprime los tumores inducidos por MYC/MYCN in vivo con una toxicidad mínima.

Conclusiones:

La inhibición de la NMT es una estrategia terapéutica viable para los cánceres impulsados por el MYC.
Dirigirse a la N-miristoilación ofrece un nuevo enfoque para el tratamiento del cáncer.
La desregulación MYC/MYCN confiere sensibilidad a los inhibidores de la NMT.

Palabras clave:

CP: Cáncer CP: Biología molecular El complejo I Cantidad total de productos El MICN N-miristoilación N-miristoiltransferasa y sus derivados No incluye:NMT y sus derivados

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