Engineering T Cells with Customized Therapeutic Response Programs Using Synthetic Notch Receptors.

Area of Science:

• Immunology
• Synthetic Biology
• Biotechnology

Background:

• Therapeutic T cell efficacy is limited by natural immune responses, which can be toxic or insufficient to overcome tumor immunosuppression.
• Current engineered T cell therapies could be improved by precisely controlling their responses and safety profiles.

Purpose of the Study:

• To investigate the use of synthetic Notch (synNotch) receptors for sculpting custom immune cell responses.
• To demonstrate the potential of synNotch technology for enhancing T cell-based therapies.

Main Methods:

• Engineered primary T cells with synNotch receptors capable of antigen recognition.
• Inducing transcriptional activation in response to specific antigens via synNotch signaling.
• Analyzing custom cytokine secretion profiles, T cell differentiation, and payload delivery.

Main Results:

• SynNotch receptors enabled custom response programs in T cells, including tailored cytokine secretion.
• Demonstrated biased T cell differentiation and local delivery of therapeutic payloads like antibodies.
• SynNotch T cells successfully recognized antigens and remodeled local microenvironments.

Conclusions:

• Synthetic Notch receptors provide a versatile platform for engineering T cell functions.
• This technology can enhance the safety and efficacy of T cell therapies by customizing immune responses.
• SynNotch T cells offer a generalizable approach to target and modify disease-associated microenvironments.