Microtubule-stabilizing drugs suppress convulsions in a C. elegans model of CAMSAP disorders
Microtubule-stabilizing drugs suppress convulsions in a C. elegans model of CAMSAP disorders

Microtubule-stabilizing drugs suppress convulsions in a C. elegans model of CAMSAP disorders

Epilepsy Res. 2026 Mar 28;224:107782. doi: 10.1016/j.eplepsyres.2026.107782. Online ahead of print.

ABSTRACT

Recessive, loss of function, genomic variants in CAMSAP1 and 2 (calmodulin-regulated spectrin-associated proteins 1 and 2) cause a neurodevelopmental seizure disorder in humans that currently lacks specific treatments. CAMSAP proteins stabilize dynamics of the minus-ends of microtubules and regulate regenerative signaling cascades. We explored microtubule-stabilizing drugs as potential therapeutic interventions using a convulsion assay in the model organism Caenorhabditis elegans. We found that animals with genetically disrupted ptrn-1 (the C. elegans homolog of CAMSAP1) exhibited elevated convulsion frequency relative to wild type, and that Epothilone B and Valproic Acid reduced convulsions. We also found that Paclitaxel increased convulsions, and Davunetide produced variable outcomes. These results suggest that pharmacologic microtubule stabilization is a promising strategy for diseases caused by genetic disruption to CAMSAP function.

PMID:41955672 | DOI:10.1016/j.eplepsyres.2026.107782