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Updated: May 1, 2026

Isolating and Culturing Vestibular and Spiral Ganglion Somata from Neonatal Rodents for Patch-Clamp Recordings
Published on: April 21, 2023
Action of clathrodin and analogues on voltage-gated sodium channels
Steve Peigneur1, Aleš Zula2, Nace Zidar3
1Catholic University Leuven (KULeuven), Toxicology and Pharmacology, Herestraat 49-Box 922, 3000 Leuven, Belgium. steve.peigneur@pharm.kuleuven.be.
Abstract:
Clathrodin is a marine alkaloid and believed to be a modulator of voltage-gated sodium (Na(V)) channels. Since there is an urgent need for small molecule Na(V) channel ligands as novel therapeutics, clathrodin could represent an interesting lead compound. Therefore, clathrodin was reinvestigated for its potency and Na(V) channel subtype selectivity. Clathrodin and its synthetic analogues were subjected to screening on a broad range of Na(V) channel isoforms, both in voltage clamp and patch clamp conditions. Even though clathrodin was not found to exert any activity, some analogues were capable of modulating the Na(V) channels, hereby validating the pyrrole-2-aminoimidazole alkaloid structure as a core structure for future small molecule-based Na(V) channel modulators.
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