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Efectos específicos del virus del interferón en las células de carcinoma embrionario
Nature
|July 10, 1980
Resumen
El tratamiento con interferón induce un estado antiviral parcial en las células de carcinoma embrionario (CE), mejorando la resistencia a virus específicos. Esto sugiere que las proteínas inducidas por el interferón interfieren con la replicación viral, particularmente para los virus con ARN intermedio de doble cadena.
Área de la Ciencia:
- Virología Virología.
- Inmunología Inmunología.
- Biología celular Biología celular.
Sus antecedentes:
- Se sabe que las células del carcinoma embrionario (CE) son susceptibles a varias infecciones virales.
- Estudios previos sugirieron que el interferón (IFN) no induce un estado antiviral en las células EC, ya que siguen siendo susceptibles al virus del bosque de Semliki y al virus de la estomatitis vesicular (VSV).
Objetivo del estudio:
- Investigar el efecto del interferón en la susceptibilidad de las células EC a las infecciones virales.
- Determinar si el interferón puede inducir un estado antiviral en las células EC y caracterizar su especificidad.
Principales métodos:
- Tratamiento de las células EC con interferón.
- Infección de células EC tratadas y no tratadas con varios virus, incluido el VSV de tipo salvaje, los mutantes de VSV, los picornavirus, el virus Sindbis y el virus de la gripe.
- Evaluación de la infectividad viral y la replicación.
Principales resultados:
- Las células EC tratadas con interferón mostraron resistencia a la infección por dos picornavirus específicos y dos mutantes sensibles a la temperatura (ts) del VSV.
- Las células EC se mantuvieron sensibles al VSV de tipo salvaje, al virus Sindbis y al virus de la influenza después del tratamiento con interferón.
- Los resultados indican un estado antiviral parcial inducido por el interferón en las células EC.
Conclusiones:
- El interferón induce un estado antiviral parcial en las células EC, en lugar de uno completo.
- Las proteínas antivirales inducidas por el interferón interfieren específicamente con la replicación de ciertos virus.
- Los virus que se replican a través de estructuras de ARN de doble hebra (dsRNA) parecen verse particularmente afectados por el estado antiviral inducido por el interferón en las células EC.
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