Mutations in SGOL1 cause a novel cohesinopathy affecting heart and gut rhythm

Translated title of the contribution: Mutations in SGOL1 cause a novel cohesinopathy affecting heart and gut rhythm

Philippe Chetaille, Christoph Preuss, S.B. Burkhard, Jean Marc Cote, Christine Houde, Julie Castilloux, Jessica Piche, Natacha Gosset, Severine Leclerc, Florian Wuennemann, Maryse Thibeault, Carmen Gagnon, Antonella Galli, Elizabeth Tuck, Gilles R. Hickson, Nour El Amine, Ines Boufaied, Emmanuelle Lemyre, Pascal de Santa Barbara, Sandrine FaureAnders Jonzon, Michel Cameron, Harry C. Dietz, Elena Gallo-McFarlane, D. Benson, Claudia Moreau, Damian Labuda, Shing H. Zhan, Yaoqing Shen, Michele Jomphe, Steven J. Jones, Jeroen Bakkers, Gregor Andelfinger

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    The pacemaking activity of specialized tissues in the heart and gut results in lifelong rhythmic contractions. Here we describe a new syndrome characterized by Chronic Atrial and Intestinal Dysrhythmia, termed CAID syndrome, in 16 French Canadians and 1 Swede. We show that a single shared homozygous founder mutation in SGOL1, a component of the cohesin complex, causes CAID syndrome. Cultured dermal fibroblasts from affected individuals showed accelerated cell cycle progression, a higher rate of senescence and enhanced activation of TGF-beta signaling. Karyotypes showed the typical railroad appearance of a centromeric cohesion defect. Tissues derived from affected individuals displayed pathological changes in both the enteric nervous system and smooth muscle. Morpholino-induced knockdown of sgol1 in zebrafish recapitulated the abnormalities seen in humans with CAID syndrome. Our findings identify CAID syndrome as a novel generalized dysrhythmia, suggesting a new role for SGOL1 and the cohesin complex in mediating the integrity of human cardiac and gut rhythm
    Translated title of the contributionMutations in SGOL1 cause a novel cohesinopathy affecting heart and gut rhythm
    Original languageUndefined/Unknown
    Pages (from-to)1245-1249
    Number of pages5
    JournalNature Genetics
    Volume46
    Issue number11
    Publication statusPublished - 2014

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