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Adeno-associated virus (AAV) 9-mediated gene delivery of Nurr1 and Foxa2 ameliorates symptoms and pathologies of Alzheimer disease model mice by suppressing neuro-inflammation and glial pathology
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Adeno-associated virus (AAV) 9-mediated gene delivery of Nurr1 and Foxa2 ameliorates symptoms and pathologies of Alzheimer disease model mice by suppressing neuro-inflammation and glial pathology
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Journal Article
Adeno-associated virus (AAV) 9-mediated gene delivery of Nurr1 and Foxa2 ameliorates symptoms and pathologies of Alzheimer disease model mice by suppressing neuro-inflammation and glial pathology
2023
Overview
There is a compelling need to develop disease-modifying therapies for Alzheimer’s disease (AD), the most common neuro-degenerative disorder. Together with recent progress in vector development for efficiently targeting the central nervous system, gene therapy has been suggested as a potential therapeutic modality to overcome the limited delivery of conventional types of drugs to and within the damaged brain. In addition, given increasing evidence of the strong link between glia and AD pathophysiology, therapeutic targets have been moving toward those addressing glial cell pathology. Nurr1 and Foxa2 are transcription/epigenetic regulators that have been reported to cooperatively regulate inflammatory and neurotrophic response in glial cells. In this study, we tested the therapeutic potential of Nurr1 and Foxa2 gene delivery to treat AD symptoms and pathologies. A series of functional, histologic, and transcriptome analyses revealed that the combined expression of Nurr1 and Foxa2 substantially ameliorated AD-associated amyloid β and Tau proteinopathy, cell senescence, synaptic loss, and neuro-inflammation in multiple in vitro and in vivo AD models. Intra-cranial delivery of Nurr1 and Foxa2 genes using adeno-associated virus (AAV) serotype 9 improved the memory and cognitive function of AD model mice. The therapeutic benefits of gene delivery were attained mainly by correcting pathologic glial function. These findings collectively indicate that AAV9-mediated Nurr1 and Foxa2 gene transfer could be an effective disease-modifying therapy for AD.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
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/ Alzheimer Disease - genetics
/ Alzheimer Disease - metabolism
/ Amyloid
/ Amyloid beta-Peptides - metabolism
/ Animals
/ Genetic Vectors - administration & dosage
/ Hepatocyte Nuclear Factor 3-beta - genetics
/ Hepatocyte Nuclear Factor 3-beta - metabolism
/ Humans
/ Male
/ Medicine
/ Mice
/ Neuroinflammatory Diseases - genetics
/ Neuroinflammatory Diseases - therapy
/ Nuclear Receptor Subfamily 4, Group A, Member 2 - genetics
/ Nuclear Receptor Subfamily 4, Group A, Member 2 - metabolism
