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Acoplamiento de la biblioteca ultragrande para el descubrimiento de nuevos quimiotipos

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Este estudio abre el acceso a miles de millones de nuevos compuestos químicos utilizando acoplamiento basado en la estructura. Los investigadores descubrieron potentes inhibidores de la beta-lactamasa AmpC y ligandos del receptor de dopamina D4, ampliando las posibilidades de descubrimiento de fármacos.

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Área de la Ciencia:

  • Química medicinal
  • Química computacional
  • Descubrimiento de drogas

Sus antecedentes:

  • Las vastas bibliotecas químicas son cruciales para el descubrimiento de fármacos, pero siguen siendo en gran medida inaccesibles.
  • La síntesis a pedido ofrece una ruta hacia nuevas entidades químicas.

Objetivo del estudio:

  • Investigar la viabilidad del acoplamiento basado en la estructura para grandes bibliotecas compuestas a pedido.
  • Identificar nuevos inhibidores de la beta-lactamasa de AmpC y los ligandos para el receptor de dopamina D4.

Principales métodos:

  • Se realizaron simulaciones de acoplamiento basadas en la estructura en 170 millones de compuestos hechos a pedido.
  • Sintetizó y probó compuestos de alto rango contra AmpC y el receptor de dopamina D4.
  • Utilizó la cristalografía de rayos X para validar las predicciones de acoplamiento.

Principales resultados:

  • Se identificó una nueva clase de inhibidores de la beta-lactamasa de AmpC, con una potencia optimizada a 77 nM.
  • Descubrieron 453.000 potenciales ligandos del receptor de dopamina D4, incluidos 81 nuevos quimiotipos.
  • Se encontraron 30 compuestos con actividad submicromolar, incluido un agonista selectivo del receptor de dopamina D4 de 180 pM.

Conclusiones:

  • El acoplamiento basado en la estructura de grandes bibliotecas a pedido es una estrategia efectiva para la expansión del espacio químico.
  • Este enfoque identificó con éxito potentes inhibidores y nuevos ligandos para objetivos terapéuticos.
  • La metodología proporciona una plataforma poderosa para acelerar el descubrimiento de medicamentos.