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Factores de huésped humano requeridos para la replicación del virus de la influenza.
Renate König1, Silke Stertz, Yingyao Zhou
1Infectious and Inflammatory Disease Center, Burnham Institute for Medical Research.
Nature
|December 23, 2009
Resumen
Este estudio identificó 295 factores de células huésped cruciales para la replicación del virus de la influenza A utilizando el cribado de todo el genoma. Dirigirse a estos factores, como vATPase y CAMK2B, es prometedor para el desarrollo de nuevos medicamentos antivirales contra los virus de la gripe.
Área de la Ciencia:
- Virología Virología.
- Biología celular Biología celular.
- Biología de Sistemas Biología de Sistemas.
Sus antecedentes:
- El virus de la influenza A depende en gran medida de la maquinaria de las células huésped debido a su limitada capacidad de codificación.
- Comprender las interacciones huésped-patógeno es clave para identificar nuevos objetivos antivirales.
Objetivo del estudio:
- Identificar los cofactores celulares esenciales para la replicación del virus de la influenza A utilizando un enfoque de biología de sistemas.
- Para explorar posibles objetivos antivirales basados en las interacciones huésped-patógeno.
Principales métodos:
- Se empleó la detección de interferencia de ARN en todo el genoma para identificar los factores del huésped.
- Se construyó y analizó una red de interacción huésped-patógeno.
- Se realizó una validación funcional de los factores identificados en la replicación viral.
Principales resultados:
- Se identificaron 295 cofactores celulares requeridos para la replicación temprana del virus de la influenza.
- La señalización de la quinasa, la ubiquitinación y las vías de la fosfatasa estaban altamente enriquecidas.
- Se confirmaron 219 factores esenciales para el crecimiento del virus de la influenza de tipo salvaje, incluidos 23 para la entrada viral (por ejemplo, vATPase, FGFR, GSK3-beta) y 10 para los pasos posteriores a la entrada (por ejemplo, CAMK2B).
- La replicación del virus de la influenza H1N1 de origen porcino también depende de estos factores.
Conclusiones:
- Un número significativo de factores del huésped son críticos para la replicación del virus de la influenza.
- Los inhibidores de los factores del huésped como la vATPasa y CAMK2B demuestran actividad antiviral contra el virus de la influenza A.
- Estos hallazgos proporcionan una base para el desarrollo de nuevas terapias antivirales dirigidas a las interacciones huésped-patógeno.
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