Amyloid-Independent Mechanisms in Alzheimer's Disease Pathogenesis

Despite the progress of the past two decades, the cause of Alzheimer's disease (AD) and effective treatments against it remain elusive. The hypothesis that amyloid-β (Aβ) peptides are the primary causative agents of AD retains significant support among researchers. Nonetheless, a growing body o...

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Main Authors: Pimplikar, Sanjay W., Nixon, Ralph A., Robakis, Nikolaos K., Shen, Jie, Tsai, Li-Huei
Other Authors: Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Format: Article
Language:en_US
Published: Society for Neuroscience 2015
Online Access:http://hdl.handle.net/1721.1/99402
https://orcid.org/0000-0003-1262-0592
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author Pimplikar, Sanjay W.
Nixon, Ralph A.
Robakis, Nikolaos K.
Shen, Jie
Tsai, Li-Huei
author2 Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
author_facet Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Pimplikar, Sanjay W.
Nixon, Ralph A.
Robakis, Nikolaos K.
Shen, Jie
Tsai, Li-Huei
author_sort Pimplikar, Sanjay W.
collection MIT
description Despite the progress of the past two decades, the cause of Alzheimer's disease (AD) and effective treatments against it remain elusive. The hypothesis that amyloid-β (Aβ) peptides are the primary causative agents of AD retains significant support among researchers. Nonetheless, a growing body of evidence shows that Aβ peptides are unlikely to be the sole factor in AD etiology. Evidence that Aβ/amyloid-independent factors, including the actions of AD-related genes, also contribute significantly to AD pathogenesis was presented in a symposium at the 2010 Annual Meeting of the Society for Neuroscience. Here we summarize the studies showing how amyloid-independent mechanisms cause defective endo-lysosomal trafficking, altered intracellular signaling cascades, or impaired neurotransmitter release and contribute to synaptic dysfunction and/or neurodegeneration, leading to dementia in AD. A view of AD pathogenesis that encompasses both the amyloid-dependent and -independent mechanisms will help fill the gaps in our knowledge and reconcile the findings that cannot be explained solely by the amyloid hypothesis.
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spelling mit-1721.1/994022022-10-01T09:23:24Z Amyloid-Independent Mechanisms in Alzheimer's Disease Pathogenesis Pimplikar, Sanjay W. Nixon, Ralph A. Robakis, Nikolaos K. Shen, Jie Tsai, Li-Huei Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Picower Institute for Learning and Memory Tsai, Li-Huei Despite the progress of the past two decades, the cause of Alzheimer's disease (AD) and effective treatments against it remain elusive. The hypothesis that amyloid-β (Aβ) peptides are the primary causative agents of AD retains significant support among researchers. Nonetheless, a growing body of evidence shows that Aβ peptides are unlikely to be the sole factor in AD etiology. Evidence that Aβ/amyloid-independent factors, including the actions of AD-related genes, also contribute significantly to AD pathogenesis was presented in a symposium at the 2010 Annual Meeting of the Society for Neuroscience. Here we summarize the studies showing how amyloid-independent mechanisms cause defective endo-lysosomal trafficking, altered intracellular signaling cascades, or impaired neurotransmitter release and contribute to synaptic dysfunction and/or neurodegeneration, leading to dementia in AD. A view of AD pathogenesis that encompasses both the amyloid-dependent and -independent mechanisms will help fill the gaps in our knowledge and reconcile the findings that cannot be explained solely by the amyloid hypothesis. National Institutes of Health (U.S.) (Grant P01-AG027916) National Institutes of Health (U.S.) (Grant R01-NS051874) 2015-10-22T12:14:43Z 2015-10-22T12:14:43Z 2010-11 2010-09 Article http://purl.org/eprint/type/JournalArticle 0270-6474 1529-2401 http://hdl.handle.net/1721.1/99402 Pimplikar, S. W., R. A. Nixon, N. K. Robakis, J. Shen, and L.-H. Tsai. “Amyloid-Independent Mechanisms in Alzheimer’s Disease Pathogenesis.” Journal of Neuroscience 30, no. 45 (November 10, 2010): 14946–14954. https://orcid.org/0000-0003-1262-0592 en_US http://dx.doi.org/10.1523/JNEUROSCI.4305-10.2010 Journal of Neuroscience Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Society for Neuroscience
spellingShingle Pimplikar, Sanjay W.
Nixon, Ralph A.
Robakis, Nikolaos K.
Shen, Jie
Tsai, Li-Huei
Amyloid-Independent Mechanisms in Alzheimer's Disease Pathogenesis
title Amyloid-Independent Mechanisms in Alzheimer's Disease Pathogenesis
title_full Amyloid-Independent Mechanisms in Alzheimer's Disease Pathogenesis
title_fullStr Amyloid-Independent Mechanisms in Alzheimer's Disease Pathogenesis
title_full_unstemmed Amyloid-Independent Mechanisms in Alzheimer's Disease Pathogenesis
title_short Amyloid-Independent Mechanisms in Alzheimer's Disease Pathogenesis
title_sort amyloid independent mechanisms in alzheimer s disease pathogenesis
url http://hdl.handle.net/1721.1/99402
https://orcid.org/0000-0003-1262-0592
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