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Entrega de ARNi mediada por las vesículas extracelulares de la leche en el cáncer de colon
Jessie Santoro1, Silvia Nuzzo1, Andrea Soricelli1,2
1IRCCS SYNLAB SDN, Via E. Gianturco 113, 80143 Napoli, Italy.
Molecular therapy. Nucleic acids
|September 2, 2025
Resumen
Las vesículas extracelulares derivadas de la leche (mEV) entregan efectivamente un pequeño ARN interferente (siRNA) para silenciar los genes. Este enfoque mejora la estabilidad del siRNA y el potencial terapéutico, particularmente para atacar la aurora quinasa A en el cáncer de colon.
Área de la Ciencia:
- Biotecnología
- Biología molecular
- Investigación del cáncer
Sus antecedentes:
- El ARN pequeño interferente (siRNA) es una herramienta prometedora para silenciar los genes, pero enfrenta desafíos como la inestabilidad y los efectos fuera del objetivo.
- Las vesículas extracelulares (EV) de la leche muestran potencial como portadores naturales para la entrega de ácido nucleico debido a su baja inmunogenicidad y biocompatibilidad.
Objetivo del estudio:
- Para optimizar la carga de siRNA en los EV derivados de la leche (mEV).
- Evaluar la estabilidad y la eficacia de silenciamiento genético del siRNA suministrado por los mEV.
- Evaluar los mEV como un sistema de administración terapéutica para la aurora quinasa A (AURKA) en el cáncer de colon.
Principales métodos:
- Métodos optimizados para cargar el siRNA en los EV derivados de la leche.
- Se evaluó la estabilidad del siRNA dentro de los mEV frente a la degradación.
- Evaluación de la eficacia en el silenciamiento genético del siRNA cargado con mEVs dirigido a AURKA en células de cáncer de colon.
Principales resultados:
- Se ha cargado con éxito el siRNA en los EV derivados de la leche (mEV).
- Los mEV protegen el siRNA de la degradación, manteniendo su integridad funcional.
- Se logró un silenciamiento genético eficiente de AURKA en las células del cáncer de colon objetivo.
Conclusiones:
- Los EV derivados de la leche son un sistema de administración seguro y eficaz para terapias de siRNA.
- Este enfoque supera las limitaciones clave de la entrega tradicional de siRNA.
- Los mEV ofrecen nuevas estrategias diagnósticas y terapéuticas para el cáncer de colon y otros tumores sólidos.
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