cmGAD67, A compact genetic switch, could open new avenues for treating drug-resistant epilepsy
Peer-Reviewed Publication
Updates every hour. Last Updated: 31-Oct-2026 01:15 ET (31-Oct-2026 05:15 GMT/UTC)
Epilepsy affects millions of people worldwide, and roughly one-third of such patients continue to experience seizures despite medication. In a recent study, researchers from Gunma University have developed a 410-base pair compact genetic switch that selectively targets inhibitory neurons in the brain to restore the excitatory–inhibitory balance. This compact switch can be delivered using viral delivery vectors, enabling effective seizure suppression across multiple epilepsy mouse models while preserving the capacity of the therapeutic genes.
A research team at Saitama University has discovered that calmodulin-binding peptide (CBP) can switch between two distinct target proteins depending on the surrounding metal-ion environment. Specifically, CBP binds calmodulin in the presence of calcium ions but recognizes human midkine in the presence of sodium ions. By combining surface plasmon resonance experiments with AlphaFold 3 structural prediction, the team uncovered a previously unrecognized mechanism of ion-dependent molecular recognition by a naturally occurring peptide. This finding opens new possibilities for peptide-based molecular recognition, diagnostic technologies, and drug discovery.
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