Illumination of cell cycle progression by multi-fluorescent sensing system

Area of Science:

• Cell Biology
• Molecular Imaging
• Biotechnology

Background:

• Studying cell proliferation requires monitoring cell cycle progression, crucial for understanding cell growth and development.
• Existing imaging techniques face challenges in visualizing cell cycle progression in living cells due to a lack of suitable probes.

Purpose of the Study:

• To develop a novel multi-fluorescent sensor system for real-time imaging of cell cycle progression.
• To enable visualization of proliferating and proliferated cells using distinct fluorescent signals.

Main Methods:

• Design and construction of a triple fluorescent sensor system.
• Generation of adenovirus for delivering the sensor into living cell lines and primary cardiomyocytes.
• Creation of a knock-in transgenic mouse model for in vivo monitoring.

Main Results:

• The triple fluorescent sensor system successfully visualized cell cycle progression in living cells.
• The system differentiated proliferating and proliferated cells with distinct colors.
• In vivo imaging of cell cycle progression was achieved in a transgenic mouse model.

Conclusions:

• The developed triple fluorescent sensor system provides a powerful tool for studying cell proliferation.
• This system can be applied to investigate cell cycle dynamics in both in vitro and in vivo models.
• Enables multicolor tracking of cell proliferation for enhanced biological insights.