An Aged Canid with Behavioral Deficits Exhibits Blood and Cerebrospinal Fluid Amyloid Beta Oligomers
Abstract
Many of the molecular and pathological features associated with human Alzheimer disease (AD) are mirrored in the naturally occurring age-associated neuropathology in the canine species. In aged dogs with declining learned behavior and memory the severity of cognitive dysfunction parallels the progressive build up and location of Aβ in the brain. The main aim of this work was to study the biological behavior of soluble oligomers isolated from an aged dog with cognitive dysfunction through investigating their interaction with a human cell line and synthetic Aβ peptides. We report that soluble oligomers were specifically detected in the dog's blood and cerebrospinal fluid (CSF) via anti-oligomer- and anti-Aβ specific binders. Importantly, our results reveal the potent neurotoxic effects of the dog's CSF on cell viability and the seeding efficiency of the CSF-borne soluble oligomers on the thermodynamic activity and the aggregation kinetics of synthetic human Aβ. The value of further characterizing the naturally occurring Alzheimer-like neuropathology in dogs using genetic and molecular tools is discussed.
Document Type
Article
Publication Date
1-30-2018
Digital Object Identifier (DOI)
https://doi.org/10.3389/fnagi.2018.00007
Funding Information
This work was funded by the University of Surrey Internal Grant Scheme to MT. JB and RG are funded by Research Fellowships from the Alzheimer's Society.
Related Content
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fnagi.2018.00007/full#supplementary-material
Repository Citation
Rusbridge, Clare; Salguero, Francisco J.; David, Monique Antoinette; Faller, Kiterie M. E.; Bras, Jose T.; Guerreiro, Rita J.; Richard-Londt, Angela C.; Grainger, Duncan; Head, Elizabeth; Brandner, Sebastian G. P.; Summers, Brian; Hardy, John; and Tayebi, Mourad, "An Aged Canid with Behavioral Deficits Exhibits Blood and Cerebrospinal Fluid Amyloid Beta Oligomers" (2018). Pharmacology and Nutritional Sciences Faculty Publications. 70.
https://uknowledge.uky.edu/pharmacol_facpub/70
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Cognitive Neuroscience Commons, Diseases Commons, Medical Nutrition Commons, Medical Pathology Commons, Medical Pharmacology Commons, Medical Toxicology Commons, Molecular and Cellular Neuroscience Commons, Neurosciences Commons, Pharmacology, Toxicology and Environmental Health Commons
Notes/Citation Information
Published in Frontiers in Aging Neuroscience, v. 10, 7, p. 1-8.
© 2018 Rusbridge, Salguero, David, Faller, Bras, Guerreiro, Richard-Londt, Grainger, Head, Brandner, Summers, Hardy and Tayebi.
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 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.