The Journal of clinical investigation · 2023

CERT1 mutations perturb human development by disrupting sphingolipid homeostasis.

СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди

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Gehin Charlotte, Lone Museer A, Lee Winston, Capolupo Laura, Ho Sylvia, Adeyemi Adekemi M, Gerkes Erica H, Stegmann Alexander Pa, López-Martín Estrella, Bermejo-Sánchez Eva, Martínez-Delgado Beatriz, Zweier Christiane, Kraus Cornelia, Popp Bernt, Strehlow Vincent, Gräfe Daniel, Knerr Ina, Jones Eppie R, Zamuner Stefano, Abriata Luciano A, Kunnathully Vidya, Moeller Brandon E, Vocat Anthony, Rommelaere Samuel, Bocquete Jean-Philippe, Ruchti Evelyne, Limoni Greta, Van Campenhoudt Marine, Bourgeat Samuel, Henklein Petra, Gilissen Christian, van Bon Bregje W, Pfundt Rolph, Willemsen Marjolein H, Schieving Jolanda H, Leonardi Emanuela, Soli Fiorenza, Murgia Alessandra, Guo Hui, Zhang Qiumeng, Xia Kun, Fagerberg Christina R, Beier Christoph P, Larsen Martin J, Valenzuela Irene, Fernández-Álvarez Paula, Xiong Shiyi, Śmigiel Robert, López-González Vanesa, Armengol Lluís, Morleo Manuela, Selicorni Angelo, Torella Annalaura, Blyth Moira, Cooper Nicola S, Wilson Valerie, Oegema Renske, Herenger Yvan, Garde Aurore, Bruel Ange-Line, Tran Mau-Them Frederic, Maddocks Alexis Br, Bain Jennifer M, Bhat Musadiq A, Costain Gregory, Kannu Peter, Marwaha Ashish, Champaigne Neena L, Friez Michael J, Richardson Ellen B, Gowda Vykuntaraju K, Srinivasan Varunvenkat M, Gupta Yask, Lim Tze Y, Sanna-Cherchi Simone, Lemaitre Bruno, Yamaji Toshiyuki, Hanada Kentaro, Burke John E, Jakšić Ana Marjia, McCabe Brian D, De Los Rios Paolo, Hornemann Thorsten, D'Angelo Giovanni, Gennarino Vincenzo A

Аннотация

Neural differentiation, synaptic transmission, and action potential propagation depend on membrane sphingolipids, whose metabolism is tightly regulated. Mutations in the ceramide transporter CERT (CERT1), which is involved in sphingolipid biosynthesis, are associated with intellectual disability, but the pathogenic mechanism remains obscure. Here, we characterize 31 individuals with de novo missense variants in CERT1. Several variants fall into a previously uncharacterized dimeric helical domain that enables CERT homeostatic inactivation, without which sphingolipid production goes unchecked. The clinical severity reflects the degree to which CERT autoregulation is disrupted, and inhibiting CERT pharmacologically corrects morphological and motor abnormalities in a Drosophila model of the disease, which we call ceramide transporter (CerTra) syndrome. These findings uncover a central role for CERT autoregulation in the control of sphingolipid biosynthetic flux, provide unexpected insight into the structural organization of CERT, and suggest a possible therapeutic approach for patients with CerTra syndrome.

Предметные рубрики MeSH

Humans Ceramides Homeostasis Mutation Sphingolipids Protein Serine-Threonine Kinases

CERT1 mutations perturb human development by disrupting sphingolipid homeostasis.

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Аннотация

Предметные рубрики MeSH