Alzheimer’s Disease: A short introduction to the calmodulin hypothesis

At the cellular level, Alzheimer’s disease (AD) is characterized by the presence of intracellular plaques containing amyloid beta (Aβ) protein and neurofibrillary tangles consisting of phospho-tau (p-tau). These biomarkers are considered to contribute, at least in part, to the neurodegenerative even...

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Main Author: Danton H. O’Day
Format: Article
Language:English
Published: AIMS Press 2019-10-01
Series:AIMS Neuroscience
Subjects:
Online Access:https://www.aimspress.com/article/10.3934/Neuroscience.2019.4.231/fulltext.html
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author Danton H. O’Day
author_facet Danton H. O’Day
author_sort Danton H. O’Day
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description At the cellular level, Alzheimer’s disease (AD) is characterized by the presence of intracellular plaques containing amyloid beta (Aβ) protein and neurofibrillary tangles consisting of phospho-tau (p-tau). These biomarkers are considered to contribute, at least in part, to the neurodegenerative events of the disease. But the accumulation of plaques and tangles is widely considered to be a later event with other factors likely being the cause of the disease. Calcium dysregulation—the unregulated accumulation of calcium ions—in neurons is an early event that underlies neurodegeneration. In 2002, O’Day and Myre extended this “Calcium Hypothesis” to include calmodulin (CaM) the primary target of calcium, suggesting the “Calmodulin Hypothesis” as an updated alternative. Here we overview the central role of CaM in the formation of the classic hallmarks of AD: plaques and tangles. Then some insight into CaM’s binding to various risk factor proteins is given followed by a short summary of specific receptors and channels linked to the disease that are CaM binding proteins. Overall, this review emphasizes the diversity of Alzheimer’s-linked CaM-binding proteins validating the hypothesis that CaM operates critically at all stages of the disease and stands out as a potential primary target for future research.
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spelling doaj.art-40f9e64b651a4946b3cfcb328f5cacb62022-12-21T22:32:19ZengAIMS PressAIMS Neuroscience2373-80062373-79722019-10-016423123910.3934/Neuroscience.2019.4.231Alzheimer’s Disease: A short introduction to the calmodulin hypothesisDanton H. O’Day01 Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada M5S 3G5 2 Department of Biology, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6At the cellular level, Alzheimer’s disease (AD) is characterized by the presence of intracellular plaques containing amyloid beta (Aβ) protein and neurofibrillary tangles consisting of phospho-tau (p-tau). These biomarkers are considered to contribute, at least in part, to the neurodegenerative events of the disease. But the accumulation of plaques and tangles is widely considered to be a later event with other factors likely being the cause of the disease. Calcium dysregulation—the unregulated accumulation of calcium ions—in neurons is an early event that underlies neurodegeneration. In 2002, O’Day and Myre extended this “Calcium Hypothesis” to include calmodulin (CaM) the primary target of calcium, suggesting the “Calmodulin Hypothesis” as an updated alternative. Here we overview the central role of CaM in the formation of the classic hallmarks of AD: plaques and tangles. Then some insight into CaM’s binding to various risk factor proteins is given followed by a short summary of specific receptors and channels linked to the disease that are CaM binding proteins. Overall, this review emphasizes the diversity of Alzheimer’s-linked CaM-binding proteins validating the hypothesis that CaM operates critically at all stages of the disease and stands out as a potential primary target for future research.https://www.aimspress.com/article/10.3934/Neuroscience.2019.4.231/fulltext.htmlalzheimer’s diseasecalmodulin hypothesiscalmodulin-bindingamyloid betaneurofibrillary tanglescamkiicalcineurinrisk factor proteinshallmarks
spellingShingle Danton H. O’Day
Alzheimer’s Disease: A short introduction to the calmodulin hypothesis
AIMS Neuroscience
alzheimer’s disease
calmodulin hypothesis
calmodulin-binding
amyloid beta
neurofibrillary tangles
camkii
calcineurin
risk factor proteins
hallmarks
title Alzheimer’s Disease: A short introduction to the calmodulin hypothesis
title_full Alzheimer’s Disease: A short introduction to the calmodulin hypothesis
title_fullStr Alzheimer’s Disease: A short introduction to the calmodulin hypothesis
title_full_unstemmed Alzheimer’s Disease: A short introduction to the calmodulin hypothesis
title_short Alzheimer’s Disease: A short introduction to the calmodulin hypothesis
title_sort alzheimer s disease a short introduction to the calmodulin hypothesis
topic alzheimer’s disease
calmodulin hypothesis
calmodulin-binding
amyloid beta
neurofibrillary tangles
camkii
calcineurin
risk factor proteins
hallmarks
url https://www.aimspress.com/article/10.3934/Neuroscience.2019.4.231/fulltext.html
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