Synthetic Phosphorylation Networks with Fluorescence and Luminescence Expansion

Area of Science:

• Synthetic Biology
• Cellular Signaling
• Biosensing Technologies

Background:

• Existing synthetic receptors rely on transcription, limiting real-time cellular process monitoring.
• Rapid cellular dynamics necessitate advanced reporting mechanisms beyond transcription-based methods.

Purpose of the Study:

• To introduce SPN-FLUX, a post-translational synthetic receptor platform for rapid, tunable cellular reporting.
• To overcome the limitations of transcription-mediated systems in capturing dynamic cellular events.

Main Methods:

• Integration of synthetic phosphorylation networks with split fluorescent/luminescent proteins.
• Development of membrane-bound and intracellular synthetic receptors in mammalian cells.
• Validation using ligand-induced dimerization and response to hypoxic conditions.

Main Results:

• SPN-FLUX demonstrates responsiveness to extracellular stimuli within 1 hour.
• Designed receptors showed successful activation and biosensing capabilities.
• Dynamic detection of environmental changes, such as hypoxia, was achieved.

Conclusions:

• SPN-FLUX offers a robust, rapid, and tunable alternative to transcription-based synthetic biology tools.
• The platform's modularity and programmability support broad applications in biomedical research and environmental monitoring.
• Enables real-time modulation and reporting of cellular functions.