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Mecanismos de expresión génica viral no convencionales como objetivos terapéuticos

Jessica Sook Yuin Ho¹, Zeyu Zhu¹, Ivan Marazzi^2,3

¹Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.

|May 20, 2021

Resumen

Los virus usan estrategias únicas de expresión génica para maximizar la eficiencia de codificación dentro de genomas pequeños. Dirigirse a estos mecanismos de recodificación viral ofrece una vía prometedora para desarrollar nuevas terapias antivirales.

Área de la Ciencia:

Virología
Biología molecular
La genética

Sus antecedentes:

Los genomas humanos contienen en su mayoría ADN no codificante, mientras que los virus optimizan las secuencias de codificación y regulación dentro de tamaños genómicos limitados.
Los virus emplean estrategias de transcripción y traducción no convencionales para mejorar la eficiencia de la expresión génica.

Objetivo del estudio:

Revisar los tipos y mecanismos de la expresión génica viral no convencional (re-codificación génica).
Explorar cómo las vulnerabilidades de recodificación viral pueden informar el desarrollo de nuevas terapias antivirales.

Principales métodos:

Revisión de la literatura existente sobre los mecanismos de expresión génica viral.
Análisis de estrategias virales que involucran enzimas virales dedicadas y dependencias del huésped.
Perspectiva sobre la traducción de conocimientos mecanicistas en el diseño de medicamentos antivirales.

Principales resultados:

Los virus utilizan vías alteradas de producción de genes y proteínas, conocidas como recodificación genética.
Estas estrategias son facilitadas por las enzimas virales o por el secuestro de los factores del huésped (dependencias del huésped).
Tales mecanismos virales únicos representan vulnerabilidades críticas para la orientación terapéutica.

Conclusiones:

La comprensión de la recodificación genética viral es crucial para identificar nuevos objetivos antivirales.
Dirigirse a las enzimas específicas del virus y las dependencias del huésped ofrece un paradigma para el diseño de la terapia antiviral.
Las futuras investigaciones sobre los mecanismos de expresión génica viral pueden guiar los esfuerzos de traducción para la erradicación viral.

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