Programmable bacterial vaccine vectors: A Design-Build-Control framework for precision immune engineering.

A systematic Design-Build-Control framework enables precise engineering of bacterial vaccine vectors, addressing safety, immunogenicity, and delivery challenges across multiple platforms.

• Why it matters: Current bacterial vector development relies on empirical attenuation, lacking a unified design approach to optimize safety, stability, and functionality for clinical use.
• What they did: The authors adapted a synthetic biology paradigm to create a framework that guides vector design, build, and control, incorporating genetic stability, inducible regulation, and biomaterial formulation across diverse bacterial systems.
• The result: This approach facilitates the development of programmable bacterial vectors with improved biosafety, manufacturability, and translational potential, integrating advances in AI, biomaterials, and synthetic biology for future clinical applications.