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Congreso ESOT 2025: Científicos crean islotes humanos funcionales mediante impresión 3D
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News provided by

European Society for Organ Transplantation (ESOT) Congress 2025

Jun 28, 2025, 18:01 ET

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-Congreso ESOT 2025: Científicos crean islotes humanos funcionales mediante impresión 3D, un avance para el tratamiento de la diabetes tipo 1

LONDRES, 28 de junio de 2025 /PRNewswire/ -- Un equipo internacional de científicos ha dado un gran paso adelante en la investigación de la diabetes al imprimir con éxito islotes humanos funcionales en 3D mediante una novedosa biotinta. Presentada hoy en el Congreso ESOT 2025, esta nueva tecnología podría allanar el camino para un tratamiento más eficaz y menos invasivo para las personas con diabetes tipo 1.

El avance consistió en la impresión de islotes humanos (los grupos de células productoras de insulina en el páncreas) mediante una biotinta personalizada hecha de alginato y tejido pancreático humano descelularizado. Este enfoque produjo estructuras de islotes duraderas y de alta densidad que permanecieron activas y funcionales hasta tres semanas, manteniendo una respuesta insulínica eficaz a la glucosa y mostrando un gran potencial para su uso clínico en el futuro.

Los trasplantes tradicionales de islotes suelen infundirse en el hígado, un proceso que puede provocar una pérdida significativa de células y un éxito limitado a largo plazo. En cambio, los islotes impresos en 3D se diseñaron para implantarse justo debajo de la piel, un procedimiento sencillo que solo requiere anestesia local y una pequeña incisión. Este enfoque mínimamente invasivo podría ofrecer una opción más segura y cómoda para los pacientes.

"Nuestro objetivo era recrear el entorno natural del páncreas para que las células trasplantadas sobrevivieran y funcionaran mejor", explicó el Dr. Quentin Perrier, autor principal del estudio. "Utilizamos una biotinta especial que imita la estructura de soporte del páncreas, proporcionando a los islotes el oxígeno y los nutrientes que necesitan para prosperar".

Los islotes bioimpresos se mantuvieron vivos y sanos, con una supervivencia celular superior al 90 %. Respondieron mejor a la glucosa que las preparaciones estándar de islotes, liberando más insulina cuando era necesaria. Para el día 21, los islotes mostraron una mayor capacidad para detectar y reaccionar a los niveles de glucosa en sangre, una señal importante de que podrían funcionar correctamente tras ser implantados. Las estructuras mantuvieron su estructura sin aglomerarse ni descomponerse, superando un obstáculo común en enfoques anteriores.

Además, las estructuras impresas en 3D presentaban una arquitectura porosa que mejoraba el flujo de oxígeno y nutrientes a los islotes implantados. Este diseño ayudó a mantener la salud celular y promovió la vascularización, ambos factores cruciales para la supervivencia y la función a largo plazo tras el trasplante.

"Este es uno de los primeros estudios que utiliza islotes humanos reales en lugar de células animales en la bioimpresión, y los resultados son increíblemente prometedores", señaló el Dr. Perrier. "Nos estamos acercando a crear un tratamiento listo para usar para la diabetes que algún día podría eliminar la necesidad de inyecciones de insulina".

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