Method for Quantitative Characterization of Substances with Respect to Their Binding Properties to Amyloid-β (Aβ) Conformers

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention provides a quantitative method and device for characterizing how different substances bind to specific forms (conformers) of amyloid-beta (Aβ) proteins. The process involves preparing and separating various forms of Aβ (such as monomers, oligomers, and fibrils), immobilizing a desired fraction on a biotin-affinity substrate, and then measuring the binding kinetics and thermodynamics of test substances or quality control probes using advanced analytical techniques like surface plasmon resonance (SPR) or biolayer interferometry. This allows for precise and reliable analysis of how candidate drugs or molecules interact with Aβ conformers—crucial in Alzheimer's research and drug development.

Use CasesContent extracted from patent full text and abstract with AI.

• High-throughput screening of drug candidates targeting specific amyloid-beta conformers for Alzheimer's disease.
• Characterization and optimization of antibodies or peptides designed to bind toxic Aβ oligomers or other aggregate forms.
• Quality control and standardization in biosensor-based assays involving amyloid aggregates.
• Fundamental research on Aβ aggregation biology and interaction profiles with various molecules.
• Development and testing of analytical biosensor platforms for neurodegenerative disease biomarker studies.

BenefitsContent extracted from patent full text and abstract with AI.

• Provides rapid, reliable, and quantitative data on binding properties to distinct amyloid-beta species, improving drug and antibody screening for Alzheimer's disease.
• Reduces experimental artifacts and errors by separating and accurately identifying specific Aβ conformers for analysis.
• Minimizes risk of conformational changes during sample handling, ensuring more physiologically relevant results.
• Can be used to assess the quality and consistency of biosensor assay surfaces, supporting reproducible research and diagnostics.
• Saves time and resources by enabling in vitro assessment prior to more expensive and time-consuming in vivo or clinical studies.

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Patent Abstract

The invention concerns a method for quantitative characterization of substances for their binding to amyloid-ß (Aß) conformers, with steps as follows: - a sample comprising various Aß conformers is fractionated, - biotinylated Aß conformer of the desired fraction is immobilized on the surface of a substrate having high biotin affinity, - the binding characteristics of an aggregate quality control probe to the desired Aß conformer are derived from the measurement signal by determination of the kinetic and/or thermodynamic parameters. A device for carrying out the method is described.