Journal
NATURE COMMUNICATIONS
Volume 13, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-022-27974-w
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Funding
- Agence Nationale de la Recherche (ANR) [ANR-11-LABX-0015]
- ANR [ANR-18-CE19-0024-02]
- Fondation Leducq
- New Team of the Region Pays de la Loire
- National Institutes of Health [R01NS091352]
- AFM [AFM22401]
- European FEDER
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The researchers developed a photoactivatable toxin targeting ion channels and demonstrated its potential in precise control of neuronal channel function through in vitro and in vivo experiments.
Photoactivatable drugs targeting ligand-gated ion channels open up new opportunities for light-guided therapeutic interventions. Photoactivable toxins targeting ion channels have the potential to control excitable cell activities with low invasiveness and high spatiotemporal precision. As proof-of-concept, we develop HwTxIV-Nvoc, a UV light-cleavable and photoactivatable peptide that targets voltage-gated sodium (Na-V) channels and validate its activity in vitro in HEK293 cells, ex vivo in brain slices and in vivo on mice neuromuscular junctions. We find that HwTxIV-Nvoc enables precise spatiotemporal control of neuronal Na-V channel function under all conditions tested. By creating multiple photoactivatable toxins, we demonstrate the broad applicability of this toxin-photoactivation technology. Photoactivable toxins targeting ion channels have great potential to control cell activity. Here the authors report HwTxIV-Nvoc, a UV light-cleavable and photoactivatable peptide that targets voltage-gated sodium channels; they validate this in cells, brain slices and in vivo on mice neuromuscular junctions.
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