Synthetic biology-engineered immunotherapies: Precision control of immune responses

Immunotherapy has revolutionized the treatment of cancers, infections, and autoimmune disorders by harnessing immune mechanisms such as signal recognition, intracellular cascades, and mediator release. However, clinical translation remains hindered by poor specificity, dysregulated signaling, and heterogeneous responses, leading to toxicity and resistance. Synthetic biology-engineering programmable cellular systems-provides transformative strategies to overcome these barriers. Through designed receptors, modular signaling circuits, and precision-controlled immune behaviors, it enables next-generation therapies with enhanced specificity and tunability. Key advances include synthetic immune circuits that permit context-dependent functions such as logic-gated activation and feedback-controlled cytokine secretion. These innovations open avenues for personalized treatments, bridging bioengineering with immunology to maximize efficacy and minimize off-target effects. This review highlights the translational potential of synthetic biology in advancing precision immunotherapy for oncology and immune disorders.