P2X7R influences tau aggregate burden in human tauopathies and shows distinct signalling in microglia and astrocytes
dc.contributor.author | Beltran-Lobo, P | |
dc.contributor.author | Hughes, MM | |
dc.contributor.author | Troakes, C | |
dc.contributor.author | Croft, CL | |
dc.contributor.author | Rupawala, H | |
dc.contributor.author | Jutzi, D | |
dc.contributor.author | Ruepp, M-D | |
dc.contributor.author | Jimenez-Sanchez, M | |
dc.contributor.author | Perkinton, MS | |
dc.contributor.author | Kassiou, M | |
dc.contributor.author | Golde, TE | |
dc.contributor.author | Hanger, DP | |
dc.contributor.author | Verkhratsky, A | |
dc.contributor.author | Perez-Nievas, BG | |
dc.contributor.author | Noble, W | |
dc.date.accessioned | 2023-09-20T08:21:57Z | |
dc.date.issued | 2023-09-15 | |
dc.date.updated | 2023-09-19T15:01:06Z | |
dc.description.abstract | The purinoceptor P2X7R is a promising therapeutic target for tauopathies, including Alzheimer's disease (AD). Pharmacological inhibition or genetic knockdown of P2X7R ameliorates cognitive deficits and reduces pathological tau burden in mice that model aspects of tauopathy, including mice expressing mutant human frontotemporal dementia (FTD)-causing forms of tau. However, disagreements remain over which glial cell types express P2X7R and therefore the mechanism of action is unresolved. Here, we show that P2X7R protein levels increase in human AD post-mortem brain, in agreement with an upregulation of P2RX7 mRNA observed in transcriptome profiles from the AMP-AD consortium. P2X7R protein increases mirror advancing Braak stage and coincide with synapse loss. Using RNAScope we detect P2RX7 mRNA in microglia and astrocytes in human AD brain, including in the vicinity of senile plaques. In cultured microglia, P2X7R activation modulates the NLRP3 inflammasome pathway by promoting the formation of active complexes and release of IL-1β. In astrocytes, P2X7R activates NFκB signalling and increases production of the cytokines CCL2, CXCL1 and IL-6 together with the acute phase protein Lcn2. To further explore the role of P2X7R in a disease-relevant context, we expressed wild-type or FTD-causing mutant forms of tau in mouse organotypic brain slice cultures. Inhibition of P2X7R reduced insoluble tau levels without altering soluble tau phosphorylation or synaptic localisation, suggesting a non-cell autonomous role of glial P2X7R on pathological tau aggregation. These findings support further investigations into the cell-type specific effects of P2X7R-targeting therapies in tauopathies. | en_GB |
dc.description.sponsorship | Alzheimer’s Research UK | en_GB |
dc.description.sponsorship | Astra Zeneca | en_GB |
dc.description.sponsorship | Medical Research Council | en_GB |
dc.description.sponsorship | National Health and Medical Research Council | en_GB |
dc.description.sponsorship | Alzheimer’s Research UK | en_GB |
dc.description.sponsorship | UK Dementia Research Institute | en_GB |
dc.description.sponsorship | Van Geest Charitable Foundation | en_GB |
dc.format.extent | 414-429 | |
dc.identifier.citation | Vol. 114, pp. 414-429 | en_GB |
dc.identifier.doi | https://doi.org/10.1016/j.bbi.2023.09.011 | |
dc.identifier.grantnumber | ARUK-PhD2018-002 | en_GB |
dc.identifier.grantnumber | WPAM216014SW | en_GB |
dc.identifier.grantnumber | MR/V036947/1 | en_GB |
dc.identifier.grantnumber | APP1154692 | en_GB |
dc.identifier.grantnumber | ARUK-RADF2019A-003 | en_GB |
dc.identifier.grantnumber | UK DRI-6005 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/134035 | |
dc.identifier | ORCID: 0000-0002-7898-4295 (Noble, Wendy) | |
dc.language.iso | en | en_GB |
dc.publisher | Elsevier | en_GB |
dc.rights | © 2023 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | en_GB |
dc.subject | Alzheimer’s disease | en_GB |
dc.subject | Astrocyte | en_GB |
dc.subject | Human brain | en_GB |
dc.subject | Microglia | en_GB |
dc.subject | P2X(7)R | en_GB |
dc.subject | RNAScope | en_GB |
dc.subject | Tauopathy | en_GB |
dc.title | P2X7R influences tau aggregate burden in human tauopathies and shows distinct signalling in microglia and astrocytes | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2023-09-20T08:21:57Z | |
dc.identifier.issn | 0889-1591 | |
exeter.place-of-publication | Netherlands | |
dc.description | This is the final version. Available from Elsevier via the DOI in this record. | en_GB |
dc.description | Availability of data and materials: Raw data and uncropped blots are included as supplementary data files. | en_GB |
dc.identifier.eissn | 1090-2139 | |
dc.identifier.journal | Brain, Behavior, and Immunity | en_GB |
dc.relation.ispartof | Brain Behav Immun, 114 | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2023-09-13 | |
dcterms.dateSubmitted | 2023-05-05 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2023-09-15 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2023-09-19T15:01:13Z | |
refterms.versionFCD | AM | |
refterms.dateFOA | 2023-09-20T08:22:01Z | |
refterms.panel | A | en_GB |
refterms.dateFirstOnline | 2023-09-15 |
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Except where otherwise noted, this item's licence is described as © 2023 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).