Preparation and Characterization of Zn(II)-Stabilized Aβ₄₂ Oligomers.

ABSTRACT: Aβ oligomers are being investigated as cytotoxic agents in Alzheimer's disease (AD). Because of their transient nature and conformational heterogeneity, the relationship between the structure and activity of these oligomers is still poorly understood. Hence, methods for stabilizing Aβ oligomeric species relevant to AD are needed to uncover the structural determinants of their cytotoxicity. Here, we build on the observation that metal ions and metabolites have been shown to interact with Aβ, influencing its aggregation and stabilizing its oligomeric species. We thus developed a method that uses zinc ions, Zn(II), to stabilize oligomers produced by the 42-residue form of Aβ (Aβ₄₂), which is dysregulated in AD. These Aβ₄₂-Zn(II) oligomers are small in size, spanning the

SUBMITTER: Gonzalez Diaz A 

PROVIDER: S-EPMC11258685 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature