Prion Protein as a Toxic Acceptor of Amyloid-β Oligomers

The initial report that cellular prion protein (PrPC) mediates toxicity of amyloid-β species linked to Alzheimer’s disease was initially treated with scepticism, but growing evidence supports this claim. That there is a high-affinity interaction is now clear, and its molecular basis is being unravel...

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Bibliographic Details
Published in:Biological psychiatry (1969) 2018-02, Vol.83 (4), p.358-368
Main Authors: Purro, Silvia A., Nicoll, Andrew J., Collinge, John
Format: Article
Language:English
Subjects:
Alzheimer Disease - metabolism
Alzheimer’s disease
Amyloid
Amyloid beta-Peptides - metabolism
Animals
Humans
Neurodegeneration
Oligomers
Prion
Prion Proteins - metabolism
Therapeutics
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Summary:The initial report that cellular prion protein (PrPC) mediates toxicity of amyloid-β species linked to Alzheimer’s disease was initially treated with scepticism, but growing evidence supports this claim. That there is a high-affinity interaction is now clear, and its molecular basis is being unraveled, while recent studies have identified possible downstream toxic mechanisms. Determination of the clinical significance of such interactions between PrPC and disease-associated amyloid-β species will require experimental medicine studies in humans. Trials of compounds that inhibit PrP-dependent amyloid-β toxicity are commencing in humans, and although it is clear that only a fraction of Alzheimer’s disease toxicity could be governed by PrPC, a partial, but still therapeutically useful, role in human disease may soon be testable.
ISSN:0006-3223
1873-2402
DOI:10.1016/j.biopsych.2017.11.020