Development and Optimization of a Fluorescent Imaging System to Detect Amyloid-β Proteins: Phantom Study

Area of Science:

• Ophthalmology
• Neurology
• Biomedical Engineering

Background:

• Alzheimer disease (AD) is a leading cause of dementia, impacting millions globally.
• Amyloid-beta (Aβ) protein aggregates in the brain and retina during AD progression.
• Aβ exhibits inherent fluorescent properties, suggesting potential for optical detection.

Purpose of the Study:

• To explore the design and feasibility of a fluorescent imaging system for detecting retinal Aβ.
• To investigate the potential of this system as a diagnostic tool for Alzheimer disease.

Main Methods:

• Designed and implemented a reconfigurable fluorescent imaging system.
• Tested system capabilities using Cy5 and CRANAD-2 imaging probes.
• Evaluated performance with ex vivo and in vivo experiments (planned).

Main Results:

• The developed fluorescent imaging system demonstrated promising capabilities for Aβ detection.
• The system's reconfigurable nature allows adaptation for various fluorophores.
• Initial tests suggest Aβ detection in the retina is feasible.

Conclusions:

• The fluorescent imaging system holds significant potential for studying Aβ biomarkers in the retina.
• This technology could offer a novel, non-invasive approach for Alzheimer disease research.
• Further in vivo and ex vivo evaluations are warranted to confirm clinical utility.