Fluorescent ratiometric MFC probe sensitive to early stages of alpha-synuclein aggregation

Area of Science:

• Biochemistry
• Neuroscience
• Molecular Biology

Background:

• Alpha-synuclein aggregation is a key pathological hallmark of Parkinson's disease.
• Early and intermediate stages of aggregation are critical for disease pathogenesis but challenging to monitor.
• Developing sensitive tools for tracking protein aggregation is essential for Parkinson's disease research.

Purpose of the Study:

• To develop a novel multiparametric fluorescent probe for monitoring alpha-synuclein aggregation.
• To assess the sensitivity of the probe to different stages of alpha-synuclein aggregation.
• To provide a tool for continuous monitoring of protein aggregation relevant to Parkinson's disease.

Main Methods:

• Synthesis of a sensor molecule (AS140-MFC) by covalently linking a mutant alpha-synuclein (Ala-to-Cys) with a dual emission dye (MFC).
• Characterization of the AS140-MFC construct as a fluorescent probe.
• Evaluation of the probe's ability to monitor alpha-synuclein aggregation in real-time.

Main Results:

• AS140-MFC functions as a multiparametric fluorescent probe.
• The probe is sensitive to early and intermediate stages of alpha-synuclein aggregation.
• Continuous monitoring of protein aggregation is feasible using AS140-MFC.

Conclusions:

• AS140-MFC is a valuable tool for studying alpha-synuclein aggregation.
• This probe can advance our understanding of Parkinson's disease mechanisms.
• The development offers a new avenue for diagnostic and therapeutic strategies in Parkinson's disease.