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Chonglu Li¹, Shu Tian², Yuling Xu³

¹Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Sponsored by the Healthy Hubei Development and Social Progress Research Center of the Key Research Base of Humanities and Social Sciences in Hubei Province, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China.

Analytical chemistry

|February 11, 2026

Resumen

Este estudio introduce un nuevo nanosonosensibilizador para la terapia sonodinámica (SDT) que autoevalúa su efectividad. El sistema utiliza fluorescencia de infrarrojo cercano II para proporcionar retroalimentación en tiempo real sobre la eficacia del tratamiento tumoral, lo que permite un monitoreo preciso.

Área de la Ciencia:

Ingeniería Biomédica Ingeniería Biomédica.
Nanotecnología La nanotecnología es la nanotecnología.
Oncología Oncología.

Sus antecedentes:

La terapia sonodinámica (SDT) es prometedora para los tumores profundos, pero carece de una evaluación de la eficacia en tiempo real.
El monitoreo de la respuesta terapéutica a nivel molecular es crucial para optimizar el tratamiento del cáncer.

Objetivo del estudio:

Desarrollar un nanosonosensibilizador de autoevaluación para el monitoreo en tiempo real de la eficacia de SDT.
Para integrar la entrega terapéutica y la retroalimentación de la eficacia en una sola plataforma terapéutica.

Principales métodos:

Diseño molecular racional de los sonosensibilizadores basados en dicetopirrolopirrol (DPP), que conducen a DPP5 con emisión NIR-II y generación de ROS.
Funcionalización de DPP5 con un péptido caspase-3-clavable para formar nanopartículas apagadas por fluorescencia (DPP5-CBT NP).
Utilizando ultrasonido (US) para activar la generación de ROS y desencadenar el desmontaje de nanopartículas a través de caspase-3, lo que lleva a la restauración de fluorescencia NIR-II.

Principales resultados:

Los NP DPP5-CBT demostraron una generación eficiente de ROS tras la irradiación de los EE.UU., induciendo la apoptosis de las células tumorales.
La activación de la caspasa-3 durante la apoptosis condujo al desmontaje de las nanopartículas y a un aumento significativo de la fluorescencia NIR-II.
Se estableció una correlación directa entre la activación de la caspasa-3, la eficacia de la SDT y la recuperación de la fluorescencia.

Conclusiones:

El desarrollado nanosonosensibilizador sensible a la caspasa-3 permite la autoevaluación no invasiva y en tiempo real de los resultados terapéuticos de SDT.
Esta plataforma teránostica que integra tratamiento y retroalimentación ofrece un nuevo paradigma para la terapia del cáncer precisa e inteligente.
El enfoque de la ingeniería molecular es prometedor para el avance de la oncología de precisión y la teranostica.

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