Repurposing a Small Molecule Plant Hormone as a Tunable ON-Switch for CAR-T Cell Immunotherapy
Scientists engineered CAR-T cells that respond only when given a plant hormone, offering a new way to give doctors safer control over these powerful immune therapies.
Plant auxin receptor system (AFB1/IAA7) repurposed as a dose-dependent, rapid, reversible ON-switch for CAR-T cells demonstrates potent cytotoxicity against B-cell lymphoma in vitro and in vivo; auxCAR-T cells maintain memory phenotype and show reduced exhaustion versus conventional designs. This record was retained from the prior triage attempt for PubMed pipeline handoff.
What the study was
- Study design
- in_vitro_and_in_vivo_preclinical
- Category
- novel_therapeutics
- Maturity
- Exploratory
- Journal
- Advanced Science
Why it surfaced
Genuinely novel conceptual advance: plant hormone signaling as an orthogonal, non-immunogenic CAR-T activation switch directly addresses the immunogenicity and toxicity limitations of existing chemical switch systems. In vivo efficacy demonstrated. Published in Advanced Science (open access, Wiley-VCH). Preclinical stage, but clear translational pathway.
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