Watt, NT, Griffiths, HH orcid.org/0000-0001-5154-4815 and Hooper, NM (2014) Lipid rafts: linking prion protein to zinc transport and amyloid-β toxicity in Alzheimer's disease. Frontiers in Cell and Developmental Biology, 2. 41. ISSN 2296-634X
Abstract
Dysregulation of neuronal zinc homeostasis plays a major role in many processes related to brain aging and neurodegenerative diseases, including Alzheimer's disease (AD). Yet, despite the critical role of zinc in neuronal function, the cellular mechanisms underpinning its homeostatic control are far from clear. We reported that the cellular prion protein (PrPC) is involved in the uptake of zinc into neurons. This PrPC-mediated zinc influx required the metal-binding octapeptide repeats in PrPC and the presence of the zinc permeable AMPA channel with which PrPC directly interacted. Together with the observation that PrPC is evolutionarily related to the ZIP family of zinc transporters, these studies indicate that PrPC plays a key role in neuronal zinc homeostasis. Therefore, PrPC could contribute to cognitive health and protect against age-related zinc dyshomeostasis but PrPC has also been identified as a receptor for amyloid-β oligomers which accumulate in the brains of those with AD. We propose that the different roles that PrPC has are due to its interaction with different ligands and/or co-receptors in lipid raft-based signaling/transport complexes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 Watt, Griffiths and Hooper. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. To view a copy of this license, visit https://creativecommons.org/licenses/by/3.0/. |
Keywords: | Alzheimer's disease; AMPA receptor; amyloid; cholesterol; prion protein; zinc |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Medicine (Leeds) > Institute of Rheumatology & Musculoskeletal Medicine (LIRMM) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Aug 2018 08:51 |
Last Modified: | 15 Aug 2018 08:51 |
Status: | Published |
Publisher: | Frontiers Media |
Identification Number: | 10.3389/fcell.2014.00041 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:134111 |