T Cell Receptor Co-Stimulation Through Magnetogenetic Tools: A Platform for Wireless Rewiring of Cellular Signaling

Area of Science:

• Synthetic biology
• Immunology
• Biotechnology

Background:

• Synthetic biology provides tools to engineer cellular functions for therapeutic purposes.
• Controlling immune cell activation is crucial for effective cell-based immunotherapies.
• Noninvasive methods for modulating T cell activity are highly desirable.

Purpose of the Study:

• To develop and validate a magnetogenetic platform for T cell receptor (TCR) costimulation.
• To investigate the use of magnetic fields for noninvasive T cell activation.
• To assess the potential of this platform for next-generation immunotherapies.

Main Methods:

• Engineered TRPV1, TRPV4, and electromagnetic perceptive gene (EPG) constructs in HEK293, Jurkat, and primary human T cells.
• Utilized calcium imaging to confirm functional activation of engineered constructs.
• Employed qPCR and proteomic analyses to evaluate downstream cellular responses.

Main Results:

• Magnetogenetic tools were functionally activated in various cell types, confirmed by calcium imaging.
• Magnetic stimulation alone modulated T cell activation signatures.
• Combined magnetic and antigenic stimulation significantly enhanced T cell activation, demonstrating tunable costimulation.

Conclusions:

• Magnetogenetic tools can serve as tunable costimulators for T cell receptor (TCR) signaling.
• Wireless, magnetically controlled systems offer precise modulation of immune cell behavior.
• This platform holds promise for developing advanced cell-based immunotherapies.