Researchers have developed a remotely controlled gene switch (Ei) that allows for the precise spatiotemporal regulation of gene expression using low-frequency electromagnetic fields (EMFs). By identifying the protein Cyb5b as a primary EMF sensor, the study demonstrates that magnetic stimulation triggers unique calcium oscillations that activate target genes without the need for invasive procedures or drugs. This bio-orthogonal technology was successfully used to reverse aging hallmarks in mice through partial cellular reprogramming and to model Alzheimer’s disease by triggering age-dependent protein accumulation. Furthermore, the system effectively restored serotonin levels in a depression model by mimicking natural circadian rhythms. This innovation provides a non-invasive, reversible framework for advanced genetic research and potential therapeutic interventions.

References:

• Kim J, Hwang Y, Kim S, et al. Electromagnetic field-inducible in vivo gene switch for remote spatiotemporal control of gene expression[J]. Cell, 2026.

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