Engineering the next generation of CAR T- cells: precision modifications, logic gates and universal strategies to overcome exhaustion and tumor resistance.
Level 5 - mechanism / opinion, no new human data
Narrative review of cellular engineering strategies without primary human data or systematic review methodology.
PubMed 41584599 · doi:10.3389/fonc.2025.1698442
What was done
This narrative review synthesizes recent engineering strategies for chimeric antigen receptor (CAR) T-cell platforms. It surveys optimizations in receptor architecture (extracellular binding domains, hinge, transmembrane, and intracellular signaling motifs), programmable logic gates (synNotch, ON-switch CARs, inhibitory CARs, and modular adaptors), methods to mitigate T-cell exhaustion (checkpoint rewiring, cytokine armoring, and epigenetic reprogramming), and allogeneic universal cell sources (healthy donors, induced pluripotent stem cells, NK cells, γδ T cells, and macrophages).
What was found
The abstract reports conceptual and mechanistic engineering approaches qualitatively; no quantitative metrics, experimental values, or clinical outcome data are reported.
Why it matters
It outlines how synthetic biology circuits and structural modifications are being combined to target solid tumor microenvironments, prevent exhaustion, and reduce off-tumor toxicity.
Limits
This is a narrative review with no primary empirical data or systematic review methodology. Many described synthetic biology designs remain preclinical or early-stage and have not been validated for safety, long-term efficacy, or manufacturing feasibility in large human cohorts.
Cited by
- supports Immune cells can be engineered in culture to perform biological logic operations such as AND, OR, and NOT gates based on specific molecular inputs.