%0 Generic %A Isidor B. %A Ebstein F. %A Hurst A. %A Vincent M. %A Bader I. %A Rudy N.L. %A Cogne B. %A Mayr J. %A Brehm A. %A Bupp C. %A Warren K. %A Bacino C.A. %A Gerard A. %A Ranells J.D. %A Metcalfe K.A. %A van Bever Y. %A Jiang Y.-H. %A Mendelssohn B.A. %A Cope H. %A Rosenfeld J.A. %A Blackburn P.R. %A Goodenberger M.L. %A Kearney H.M. %A Kennedy J. %A Scurr I. %A Szczaluba K. %A Ploski R. %A de Saint Martin A. %A Alembik Y. %A Piton A. %A Bruel A.-L. %A Thauvin-Robinet C. %A Strong A. %A Diderich K.E.M. %A Bourgeois D. %A Dahan K. %A Vignard V. %A Bonneau D. %A Colin E. %A Barth M. %A Camby C. %A Baujat G. %A Briceño I. %A Gómez A. %A Deb W. %A Conrad S. %A Besnard T. %A Bézieau S. %A Krüger E. %A Küry S. %A Stankiewicz P. %8 2022 %@ 10983600 %U http://hdl.handle.net/10818/60077 %X Purpose: Haploinsufficiency of PSMD12 has been reported in individuals with neurodevelopmental phenotypes, including developmental delay/intellectual disability (DD/ID), facial dysmorphism, and congenital malformations, defined as Stankiewicz-Isidor syndrome (STISS). Investigations showed that pathogenic variants in PSMD12 perturb intracellular protein homeostasis. Our objective was to further explore the clinical and molecular phenotypic spectrum of STISS. Methods: We report 24 additional unrelated patients with STISS with various truncating single nucleotide variants or copy-number variant deletions involving PSMD12. We explore disease etiology by assessing patient cells and CRISPR/Cas9-engineered cell clones for various cellular pathways and inflammatory status. Results: The expressivity of most clinical features in STISS is highly variable. In addition to previously reported DD/ID, speech delay, cardiac and renal anomalies, we also confirmed preaxial hand abnormalities as a feature of this syndrome. Of note, 2 patients also showed chilblains resembling signs observed in interferonopathy. Remarkably, our data show that STISS patient cells exhibit a profound remodeling of the mTORC1 and mitophagy pathways with an induction of type I interferon-stimulated genes. Conclusion: We refine the phenotype of STISS and show that it can be clinically recognizable and biochemically diagnosed by a type I interferon gene signature. © 2021 American College of Medical Genetics and Genomics %I Genetics in Medicine %T Stankiewicz-Isidor syndrome: expanding the clinical and molecular phenotype %R 10.1016/j.gim.2021.09.005 %~ Intellectum