Silicon rhodamine-based fluorescent probes for monitoring mitochondrial viscosity dynamics during mitophagy

Area of Science:

• Biophysics
• Cell Biology
• Molecular Biology

Background:

• Mitochondrial quality control is essential for cellular health.
• Mitophagy, the selective degradation of damaged mitochondria, is a key process.
• Real-time monitoring of mitochondrial inner membrane viscosity during mitophagy is currently challenging.

Purpose of the Study:

• To develop a novel method for real-time visualization of mitochondrial inner membrane viscosity.
• To enable reliable monitoring of mitophagic processes.
• To gain new insights into mitochondrial remodeling during autophagy.

Main Methods:

• Development of a silicon rhodamine (SiR)-based dual-modal imaging probe.
• Application of the probe for real-time monitoring of mitophagy.
• Analysis of mitochondrial remodeling dynamics.

Main Results:

• The developed probe successfully enabled real-time visualization of mitochondrial inner membrane viscosity.
• Reliable monitoring of mitophagic processes was achieved.
• Novel insights into mitochondrial remodeling during autophagy were obtained.

Conclusions:

• The SiR-based probe is a valuable tool for studying mitophagy.
• This technology advances the understanding of mitochondrial dynamics and quality control.
• The findings open new avenues for investigating mitochondrial diseases.