ArticleACS chemical neuroscience2023
Molecular Mechanisms of Amyloid-β Self-Assembly Seeded by In Vivo-Derived Fibrils and Inhibitory Effects of the BRICHOS Chaperone.
Article in ACS chemical neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Decoding the mechanisms of amyloid-β in synaptic toxicity.Journal of Alzheimer's disease : JAD · 2026Review
- Chaperone-Mediated Regulation of Tau Phase Separation, Fibrillation, and Toxicity.Journal of the American Chemical Society · 2025Article
- Deciphering the Morphological Difference of Amyloid-β Fibrils in Familial and Sporadic Alzheimer's Diseases.Journal of chemical information and modeling · 2024Article
- Specific inhibition of α-synuclein oligomer generation and toxicity by the chaperone domain Bri2 BRICHOS.Protein science : a publication of the Protein Society · 2024Article
- The self-assembly of L-histidine might be the cause of histidinemia.Scientific reports · 2023Article
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Authors and funding
10 authors.
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Abstract
Self-replication of amyloid-β-peptide (Aβ) fibril formation is a hallmark in Alzheimer's disease (AD). Detailed insights have been obtained in Aβ self-assembly in vitro, yet whether similar mechanisms are relevant in vivo has remained elusive. Here, we investigated the ability of in vivo-derived Aβ fibrils from two different amyloid precursor protein knock-in AD mouse models to seed Aβ42 aggregation, where we quantified the microscopic rate constants. We found that the nucleation mechanism of in vivo-derived fibril-seeded Aβ42 aggregation can be described with the same kinetic model as that in vitro. Further, we identified the inhibitory mechanism of the anti-amyloid BRICHOS chaperone on seeded Aβ42 fibrillization, revealing a suppression of secondary nucleation and fibril elongation, which is strikingly similar as observed in vitro. These findings hence provide a molecular understanding of the Aβ42 nucleation process triggered by in vivo-derived Aβ42 propagons, providing a framework for the search for new AD therapeutics.
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