Cited by 13Alzheimer's disease research and treatmentsFree Radicals and AntioxidantsMolecular Sensors and Ion Detection

Why the Ala-His-His Peptide Is an Appropriate Scaffold to Remove and Redox Silence Copper Ions from the Alzheimer’s-Related Aβ Peptide

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Gonzalez, Paulina, Sabater, Laurent, Mathieu, Emilie, Faller, Peter, Hureau, Christelle·2022·Biomolecules

Abstract

The progressive, neurodegenerative Alzheimer’s disease (AD) is the most widespread dementia. Due to the ageing of the population and the current lack of molecules able to prevent or stop the disease, AD will be even more impactful for society in the future. AD is a multifactorial disease, and, among other factors, metal ions have been regarded as potential therapeutic targets. This is the case for the redox-competent Cu ions involved in the production of reactive oxygen species (ROS) when bound to the Alzheimer-related Aβ peptide, a process that contributes to the overall oxidative stress and inflammation observed in AD. Here, we made use of peptide ligands to stop the Cu(Aβ)-induced ROS production and we showed why the AHH sequence is fully appropriate, while the two parents, AH and AAH, are not. The AHH peptide keeps its beneficial ability against Cu(Aβ)-induced ROS, even in the presence of ZnII-competing ions and other biologically relevant ions. The detailed kinetic mechanism by which AHH could exert its action against Cu(Aβ)-induced ROS is also proposed.

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Authors
Gonzalez, P., Sabater, L., Mathieu, E., Faller, P., & Hureau, C.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France
Corresponding author
Hureau, Christelle
Venue
Biomolecules
Publisher
MDPI AG
Published
2022-09-20
Volume
12
Issue
10
Pages
1327
ISSN
2218-273X (ISSN-L)
OpenAlex
W4296466904
Cited by
13
References
98
Citations by year
2026: 2 · 2025: 4 · 2024: 4 · 2023: 2 · 2022: 1
FWCI
1.70
Type
journal article
Language
en
Open access
Locations
  • Biomolecules (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
ERC aLzINK-StG (638712)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Physical Sciences › Chemistry › Organic Chemistry › Free Radicals and Antioxidants
  • Physical Sciences › Chemistry › Spectroscopy › Molecular Sensors and Ion Detection
Keywords
Alzheimer's disease, amyloid-beta, copper ions, reactive oxygen species, oxidative stress, peptide scaffolds, metal ion binding, metal-based drugs
MeSH terms
Receptors for Activated C Kinase, Alzheimer Disease, Copper, Humans, Ions, Ligands, Oligopeptides, Oxidation-Reduction, Peptides, Amyloid beta-Peptides, Reactive Oxygen Species

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