Cell-Based Biosensor to Visualize Nitric Oxide Release from Living Cells for Toxicity Assessment

Area of Science:

• Biomedical Engineering
• Cell Biology
• Biophysics

Background:

• Fluorescence imaging is crucial for observing biomolecular dynamics in vivo.
• Nitric oxide (NO) is a vital signaling molecule implicated in numerous physiological and toxicological pathways.
• Availability of specific biosensors is key to advancing in vivo molecular studies.

Purpose of the Study:

• To develop and describe a novel, highly sensitive, cell-based fluorescent biosensor.
• To enable visualization and optical measurement of nitric oxide (NO) release from living cells.
• To provide a method for studying NO dynamics in biological systems.

Main Methods:

• Development of a cell-based fluorescent biosensor.
• Utilizing fluorescence imaging techniques for NO detection.
• Performing optical measurements of NO release from cultured cells.

Main Results:

• A highly sensitive cell-based biosensor for NO was successfully created.
• The biosensor allows for effective visualization of NO released by living cells.
• Optical measurement protocols for NO release were established.

Conclusions:

• The developed fluorescent biosensor offers a powerful tool for studying NO.
• This method facilitates the observation of NO dynamics in real-time within living systems.
• The biosensor enhances our capability to investigate the roles of NO in health and disease.