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Modelos Combinados para Evaluar la Inhibición del Symporter Sodio-Yoduro

Julia Kandler1, Ayse Sıla Kantarçeken1, Aljoša Smajić1

  • 1Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.

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|January 23, 2026
PubMed
Resumen

Los productos químicos ambientales que inhiben el symporter sodio-yoduro (NIS) pueden causar neurotoxicidad del desarrollo. Este estudio desarrolló un marco in silico robusto que combina el aprendizaje automático y el docking para predecir la inhibición del NIS para mejorar la evaluación de riesgos toxicológicos.

Palabras clave:
toxicología computacionalaprendizaje automáticodocking molecularneurotoxicidad del desarrollosymporter sodio-yoduro

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Área de la Ciencia:

  • Toxicología
  • Química Computacional
  • Neurociencia

Sus antecedentes:

  • El symporter sodio-yoduro (NIS) es vital para la síntesis de hormonas tiroideas, crucial para el desarrollo cerebral.
  • La inhibición del NIS por productos químicos ambientales puede provocar trastornos del neurodesarrollo como autismo y disminución del coeficiente intelectual.
  • La predicción precisa de la neurotoxicidad del desarrollo (DNT) es esencial para la evaluación de riesgos.

Objetivo del estudio:

  • Desarrollar y validar un marco in silico para predecir inhibidores del NIS.
  • Identificar productos químicos ambientales con potencial DNT modelando la inhibición del NIS.
  • Apoyar las estrategias de evaluación de riesgos de próxima generación.

Principales métodos:

  • Se aplicó el cribado virtual basado en docking de inhibidores del NIS.
  • Se entrenaron modelos de aprendizaje automático (RF, XGB, SVM) utilizando ECFP4 y CDDD.
  • Se validaron los modelos utilizando validación cruzada de 9 pliegues y un conjunto de prueba interno.

Principales resultados:

  • Las predicciones combinadas de ML y docking mejoraron la discriminación (ROC AUC de 0.77).
  • Los umbrales óptimos produjeron un MCC de 0.32 y una precisión equilibrada de 0.78.
  • Se desarrolló un marco robusto utilizando 1412 compuestos diversos.

Conclusiones:

  • El estudio presenta un marco computacional novedoso y robusto para predecir la inhibición del NIS.
  • Este enfoque mejora la identificación de productos químicos que causan DNT.
  • El método desarrollado representa un nuevo enfoque para la evaluación de riesgos toxicológicos.