Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/115552
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Type: Journal article
Title: Dysregulation of neuronal iron homeostasis as an alternative unifying effect of mutations causing familial Alzheimer's disease
Author: Lumsden, A.
Rogers, J.
Majd, S.
Newman, M.
Sutherland, G.
Verdile, G.
Lardelli, M.
Citation: Frontiers in Neuroscience, 2018; 12(AUG):533-1-533-21
Publisher: Frontiers Media
Issue Date: 2018
ISSN: 1662-4548
1662-453X
Statement of
Responsibility: 
Amanda L. Lumsden, Jack T. Rogers, Shohreh Majd, Morgan Newman, Greg T. Sutherland, Giuseppe Verdile and Michael Lardelli
Abstract: The overwhelming majority of dominant mutations causing early onset familial Alzheimer's disease (EOfAD) occur in only three genes, PSEN1, PSEN2, and APP. An effect-in-common of these mutations is alteration of production of the APP-derived peptide, amyloid β (Aβ). It is this key fact that underlies the authority of the Amyloid Hypothesis that has informed Alzheimer's disease research for over two decades. Any challenge to this authority must offer an alternative explanation for the relationship between the PSEN genes and APP. In this paper, we explore one possible alternative relationship - the dysregulation of cellular iron homeostasis as a common effect of EOfAD mutations in these genes. This idea is attractive since it provides clear connections between EOfAD mutations and major characteristics of Alzheimer's disease such as dysfunctional mitochondria, vascular risk factors/hypoxia, energy metabolism, and inflammation. We combine our ideas with observations by others to describe a "Stress Threshold Change of State" model of Alzheimer's disease that may begin to explain the existence of both EOfAD and late onset sporadic (LOsAD) forms of the disease. Directing research to investigate the role of dysregulation of iron homeostasis in EOfAD may be a profitable way forward in our struggle to understand this form of dementia.
Keywords: iron homeostasis; trafficking; familial Alzheimer’s disease; neurodegeneration; mutation; secretase; PRESENILIN; AMYLOID BETA A4 PRESCURSOR PROTEIN
Description: Published: 12 August 2018
Rights: Copyright © 2018 Lumsden, Rogers, Majd, Newman, Sutherland, Verdile and Lardelli. 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) and the copyright owner(s) 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.
RMID: 0030097220
DOI: 10.3389/fnins.2018.00533
Grant ID: http://purl.org/au-research/grants/nhmrc/1126422
http://purl.org/au-research/grants/nhmrc/1045507
http://purl.org/au-research/grants/nhmrc/1105698
Appears in Collections:Molecular and Biomedical Science publications

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