Xiaoyu Chen, Fikri Birey, Min-Yin Li, Omer Revah, Rebecca Levy, Mayuri Vijay Thete, Noah Reis, Konstantin Kaganovsky, Massimo Onesto, Noriaki Sakai, Zuzana Hudacova, Jin Hao, Xiangling Meng, Seiji Nishino, John Huguenard, Sergiu P Pașca
Timothy syndrome (TS) is a severe, multisystem disorder characterized by autism, epilepsy, long-QT syndrome and other neuropsychiatric conditions1 . TS type 1 (TS1) is caused by a gain-of-function variant in the alternatively spliced and developmentally enriched CACNA1C exon 8A, as opposed to its counterpart exon 8. We previously uncovered several phenotypes in neurons derived from patients with TS1, including delayed channel inactivation, prolonged depolarization-induced calcium rise, impaired interneuron migration, activity-dependent dendrite retraction and an unanticipated persistent expression of exon 8A2-6 ...
April 2024: Nature