Lydie Burglen, Evelien Van Hoeymissen, Leila Qebibo, Magalie Barth, Newell Belnap, Felix Boschann, Christel Depienne, Katrien De Clercq, Andrew G L Douglas, Mark P Fitzgerald, Nicola Foulds, Catherine Garel, Ingo Helbig, Katharina Held, Denise Horn, Annelies Janssen, Angela M Kaindl, Vinodh Narayanan, Christina Pragner, Mailys Rupin, Alexandra Afenjar, Siyuan Zhao, Vincent Th Ramaekers, Sarah M Ruggiero, Simon Thomas, Stéphanie Valence, Lionel Van Maldergem, Tibor Rohacs, Diana Rodriguez, David Dyment, Thomas Voets, Joris Vriens
TRPM3 is a temperature- and neurosteroid-sensitive plasma membrane cation channel expressed in a variety of neuronal and non-neuronal cells. Recently, rare de novo variants in TRPM3 were identified in individuals with developmental and epileptic encephalopathy (DEE), but the link between TRPM3 activity and neuronal disease remains poorly understood. We previously reported that two disease-associated variants in TRPM3 lead to a gain of channel function (Van Hoeymissen et al., 2020; Zhao et al., 2020). Here, we report a further ten patients carrying one of seven additional heterozygous TRPM3 missense variants...
January 17, 2023: ELife