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New, Fully Implantable Device for Selective Clearance of CSF-Target Molecules: Proof of Concept in a Murine Model of Alzheimer’s Disease

We have previously proposed a radical change in the current strategy to clear pathogenic proteins from the central nervous system (CNS) based on the cerebrospinal fluid (CSF)-sink therapeutic strategy, whereby pathogenic proteins can be removed directly from the CNS via CSF. To this aim, we designed...

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Published in:International journal of molecular sciences 2022-08, Vol.23 (16), p.9256
Main Authors: Coto-Vilcapoma, María Almudena, Castilla-Silgado, Juan, Fernández-García, Benjamín, Pinto-Hernández, Paola, Cipriani, Raffaela, Capetillo-Zarate, Estibaliz, Menéndez-González, Manuel, Álvarez-Vega, Marco, Tomás-Zapico, Cristina
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container_issue 16
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container_title International journal of molecular sciences
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creator Coto-Vilcapoma, María Almudena
Castilla-Silgado, Juan
Fernández-García, Benjamín
Pinto-Hernández, Paola
Cipriani, Raffaela
Capetillo-Zarate, Estibaliz
Menéndez-González, Manuel
Álvarez-Vega, Marco
Tomás-Zapico, Cristina
description We have previously proposed a radical change in the current strategy to clear pathogenic proteins from the central nervous system (CNS) based on the cerebrospinal fluid (CSF)-sink therapeutic strategy, whereby pathogenic proteins can be removed directly from the CNS via CSF. To this aim, we designed and manufactured an implantable device for selective and continuous apheresis of CSF enabling, in combination with anti-amyloid-beta (Aβ) monoclonal antibodies (mAb), the clearance of Aβ from the CSF. Here, we provide the first proof of concept in the APP/PS1 mouse model of Alzheimer’s disease (AD). Devices were implanted in twenty-four mice (seventeen APP/PS1 and seven Wt) with low rates of complications. We confirmed that the apheresis module is permeable to the Aβ peptide and impermeable to mAb. Moreover, our results showed that continuous clearance of soluble Aβ from the CSF for a few weeks decreases cortical Aβ plaques. Thus, we conclude that this intervention is feasible and may provide important advantages in terms of safety and efficacy.
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ispartof International journal of molecular sciences, 2022-08, Vol.23 (16), p.9256
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subjects Alzheimer
Alzheimer's disease
Amyloid precursor protein
Animal models
Antibodies
Apheresis
beta-amyloid
Central nervous system
Cerebrospinal fluid
Clearances
Cloning
CSF-sink
Equilibrium
Immunotherapy
implantable device
Liver
Monoclonal antibodies
Plaques
Plasma
Presenilin 1
Proteins
Rodents
title New, Fully Implantable Device for Selective Clearance of CSF-Target Molecules: Proof of Concept in a Murine Model of Alzheimer’s Disease
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