Engineered molecular circuits encoded in RNA can act as programmable therapeutics that sense cellular states and elicit precise responses within diseased cells. Here, the authors introduce a model delivery system with layered control of targeted infection, conditional replication, drug-inducible viral clearance, and molecular circuit-based cargo regulation, demonstrating a versatile platform for precise RNA viral vector delivery.
- Lucy S. Chong
- Jeewoo Kang
- Michael B. Elowitz