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Home - Medicine - Una ventana estructural a la helicasa WRN abre una nueva vía contra el cáncer

Medicine

Una ventana estructural a la helicasa WRN abre una nueva vía contra el cáncer

Last updated: January 30, 2026 8:48 am
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Una ventana estructural a la helicasa WRN abre una nueva vía contra el cáncer

Un estudio publicado en Communications Biology ha desentrañado el ciclo estructural de la helicasa WRN, una enzima crucial para la reparación del ADN asociada al síndrome de Werner. Mediante cristalografía y ensayos bioquímicos, los investigadores han cartografiado cómo la unión de nucleótidos y la interacción con ADN de cadena sencilla impulsan transiciones conformacionales específicas en la proteína. Estos hallazgos estructurales detallados identifican estados conformacionales clave que podrían ser dianas para el descubrimiento de fármacos, particularmente para cánceres con inestabilidad de microsatélites (MSI-H).

Por qué podría importarte:
La comprensión precisa de los mecanismos moleculares de enzimas como la WRN es fundamental para evaluar cómo toxinas ambientales o fármacos pueden interferir con los procesos de reparación del ADN. Este conocimiento estructural puede ayudarte a refinar modelos de riesgo para compuestos que afecten la integridad genómica en contextos de infección o enfermedad. Además, identifica dianas terapéuticas específicas cuya modulación podría ser relevante en patologías donde la interacción huésped-patógeno induce estrés genotóxico.


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