Diagnostics of Synucleinopathies by Protein Amplification Methods: Methodological and Bibliometric Analysis

Area of Science:

• Neuroscience
• Biochemistry
• Medical Diagnostics

Background:

• Early detection of neurodegenerative diseases, including synucleinopathies and Alzheimer's disease, relies on identifying pathological amyloid aggregates in biological fluids.
• Protein misfolding and aggregation are central to the pathogenesis of these diseases, necessitating sensitive detection methods.

Purpose of the Study:

• To review the application of protein amplification methods, specifically PMCA and RT-QuIC, for the early diagnosis of synucleinopathies.
• To conduct a bibliometric analysis of publications on protein amplification methods in synucleinopathy diagnostics.
• To comparatively analyze RT-QuIC protocols, focusing on principles, optimization, biological samples, and factors affecting sensitivity and specificity.

Main Methods:

• Bibliometric analysis of scientific literature.
• Comparative analysis of established RT-QuIC protocols.
• Review of protein misfolding cyclic amplification (PMCA) and real-time quaking-induced conversion (RT-QuIC) techniques.

Main Results:

• Protein amplification methods offer high sensitivity and specificity for detecting α-synuclein oligomers in early disease stages.
• Significant limitations exist, including technical complexity, time requirements, and lack of standardization.
• Despite challenges, these methods are considered promising for accessible and standardizable diagnostics in synucleinopathies.

Conclusions:

• Protein amplification methods, particularly RT-QuIC, are valuable tools for the early diagnosis and study of synucleinopathies.
• Addressing current limitations in standardization and protocol development is crucial for wider clinical adoption.
• Further research and optimization are needed to fully realize the potential of these techniques in neurodegenerative disease diagnostics.