Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/135457
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Type: | Journal article |
Title: | Transcriptional signature in microglia isolated from an Alzheimer's disease mouse model treated with scanning ultrasound |
Author: | Leinenga, G. Bodea, L.G. Schröder, J. Sun, G. Zhou, Y. Song, J. Grubman, A. Polo, J.M. Götz, J. |
Citation: | Bioengineering & Translational Medicine, 2023; 8(1):e10329-1-e10329-14 |
Publisher: | Wiley |
Issue Date: | 2023 |
ISSN: | 2380-6761 2380-6761 |
Statement of Responsibility: | Gerhard Leinenga, Liviu-Gabriel Bodea, Jan Schröder, Giuzhi Sun, Yichen Zhou, Jae Song, Alexandra Grubman, Jose M. Polo, Jürgen Götz |
Abstract: | Transcranial scanning ultrasound combined with intravenously injected microbubbles(SUS⁺MB) has been shown to transiently open the blood–brain barrier and reduce the amyloid-β(Aβ) pathology in the APP23 mouse model of Alzheimer's disease (AD). This has been accomplished through the activation of microglial cells; however, their response to the SUS treatment is incompletely understood. Here, wild-type (WT) and APP23 mice were subjected to SUS⁺MB, using nonsonicated mice as sham controls. After 48 h, the APP23 mice were injected with methoxy-XO4 to label Aβaggregates, followed by microglial isolation into XO4⁺ and XO4‾ populations using flow cytometry. Both XO4⁺ and XO4‾ cells were subjected to RNA sequencing and transcriptome pro-filing. The analysis of the microglial cells revealed a clear segregation depending on genotype (AD model vs. WT mice) and Aβinternalization (XO4⁺ vs. XO4‾ microglia),but interestingly, no differences were found between SUS⁺ MB and sham in WT mice. Differential gene expression analysis in APP23 mice detected 278 genes that were significantly changed by SUS⁺ MB in the XO4⁺ cells (248 up/30 down) and 242 in XO‾ cells(225 up/17 down). Pathway analysis highlighted differential expression of genes related to the phagosome pathway and marked upregulation of cell cycle-related transcripts in XO4⁺ and XO4- microglia isolated from SUS⁺MB-treated APP23 mice. Together, this highlights the complexity of the microglial response to transcranial ultrasound, with potential applications for the treatment of AD. |
Keywords: | Alzheimer's disease RNA sequencing methoxy‐XO4 microglia transcriptomics ultrasound |
Description: | First published: 03 May 2022 |
Rights: | © 2022 The Authors. Bioengineering & Translational Medicine published by Wiley Periodicals LLC on behalf of American Institute of Chemical Engineers. |
DOI: | 10.1002/btm2.10329 |
Grant ID: | http://purl.org/au-research/grants/nhmrc/GNT1145580 http://purl.org/au-research/grants/nhmrc/GNT1176326 |
Published version: | http://dx.doi.org/10.1002/btm2.10329 |
Appears in Collections: | Medical Sciences publications |
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hdl_135457.pdf | Published version | 4.25 MB | Adobe PDF | View/Open |
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