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Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System

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Published on: December 11, 2016

Desarrollo de fármacos

Miki Murota¹, Roberta Tufi², Naoki Tokuhara¹

¹Eisai Co, Tsukuba, Ibaraki, Japan.

Alzheimer's & dementia : the journal of the Alzheimer's Association

|December 25, 2025

Resumen

Este resumen es generado por máquina.

El anticuerpo E2814 reduce la captación neuronal de tau y mejora la eliminación por la microglía, lo que podría ralentizar la propagación de la patología tau en enfermedades neurodegenerativas como la enfermedad de Alzheimer (EA).

Palabras clave:

Desarrollo de fármacos Enfermedad de Alzheimer Tau Neurodegeneración Microglía Neuronas Anticuerpos Terapia celular

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Developmental Toxicity Assay Based on Real-Time Monitoring of Fibroblast Growth Factor Signal Disruption in Human Induced Pluripotent Stem Cells

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Área de la Ciencia:

Neurociencia; Inmunología; Biología Celular

Sus antecedentes:

La deposición de tau es una característica distintiva de las enfermedades neurodegenerativas, incluida la enfermedad de Alzheimer (EA).; La patología tau se propaga a través de vías conectadas, con la región de unión a microtúbulos (MTBR) de tau formando semillas.; E2814 es un anticuerpo dirigido contra tau-MTBR en ensayos clínicos para prevenir la propagación de la patología tau.

Objetivo del estudio:

Investigar el mecanismo de E2814 y 7G6 en la captación celular de tau.; Evaluar el impacto de estos anticuerpos en la internalización neuronal y microglial de tau.

Principales métodos:

Se utilizaron cultivos in vitro de neuronas de roedores y humanas (glutamatérgicas derivadas de iPSC).; Se aislaron y cultivaron microglía primaria y derivada de iPSC.; Se midió la tau intracelular utilizando tau marcada con fluorescencia, anticuerpos e imágenes de células vivas.

Principales resultados:

E2814 y 7G6 disminuyeron la captación de tau tanto en neuronas de roedores como humanas.; La captación de tau por la microglía aumentó en presencia del anticuerpo, dependiente de la función efectora.

Conclusiones:

E2814 puede impedir la propagación de la patología tau al inhibir la captación neuronal de tau.; El anticuerpo también puede acelerar la eliminación de tau-MTBR a través de vías microgliales.