Discovering a new part of the phenotypic spectrum of Coffin-Siris syndrome in a fetal cohort

Pleuntje J. van der Sluijs, Marieke Joosten, Caroline Alby, Tania Attié-Bitach, Kelly Gilmore, Christele Dubourg, Mélanie Fradin, Tianyun Wang, Evangeline C. Kurtz-Nelson, Kaitlyn P. Ahlers, Peer Arts, Christopher P. Barnett, Myla Ashfaq, Anwar Baban, Myrthe van den Born, Sarah Borrie, Tiffany Busa, Alicia Byrne, Miriam Carriero, Claudia CesarioKaren Chong, Anna Maria Cueto-González, Jennifer C. Dempsey, Karin E.M. Diderich, Dan Doherty, Stense Farholt, Erica H. Gerkes, Svetlana Gorokhova, Lutgarde C.P. Govaerts, Pernille A. Gregersen, Scott E. Hickey, Mathilde Lefebvre, Francesca Mari, Jelena Martinovic, Hope Northrup, Melanie O'Leary, Kareesma Parbhoo, Sophie Patrier, Bernt Popp, Fernando Santos-Simarro, Corinna Stoltenburg, Christel Thauvin-Robinet, Elisabeth Thompson, Anneke T. Vulto-van Silfhout, Farah R. Zahir, Hamish S. Scott, Rachel K. Earl, Evan E. Eichler, Neeta L. Vora, Yael Wilnai, Jessica L. Giordano, Ronald J. Wapner, Jill A. Rosenfeld, Monique C. Haak, Gijs W.E. Santen*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)


Purpose: Genome-wide sequencing is increasingly being performed during pregnancy to identify the genetic cause of congenital anomalies. The interpretation of prenatally identified variants can be challenging and is hampered by our often limited knowledge of prenatal phenotypes. To better delineate the prenatal phenotype of Coffin-Siris syndrome (CSS), we collected clinical data from patients with a prenatal phenotype and a pathogenic variant in one of the CSS-associated genes. Methods: Clinical data was collected through an extensive web-based survey. Results: We included 44 patients with a variant in a CSS-associated gene and a prenatal phenotype; 9 of these patients have been reported before. Prenatal anomalies that were frequently observed in our cohort include hydrocephalus, agenesis of the corpus callosum, hypoplastic left heart syndrome, persistent left vena cava, diaphragmatic hernia, renal agenesis, and intrauterine growth restriction. Anal anomalies were frequently identified after birth in patients with ARID1A variants (6/14, 43%). Interestingly, pathogenic ARID1A variants were much more frequently identified in the current prenatal cohort (16/44, 36%) than in postnatal CSS cohorts (5%-9%). Conclusion: Our data shed new light on the prenatal phenotype of patients with pathogenic variants in CSS genes.

Original languageEnglish
Pages (from-to)1753-1760
Number of pages8
JournalGenetics in Medicine
Issue number8
Publication statusPublished - Aug 2022

Bibliographical note

We would like to thank Ileana Minguel for her assistance in the collection of patient data and Aude Tessier and Anne-Claire Brehin for referring cases and conducting genetic analysis.

This work was supported, in part, by grants from the National Institutes of Health (Grant No. R01 MH101221 [to E.E.E.]). E.E.E. is an investigator of the Howard Hughes Medical Institute.

Sequencing and analysis for individual 30 was provided by the Broad Institute of MIT and Harvard Center for Mendelian Genomics and was funded by the National Human Genome Research Institute, the National Eye Institute, and the National Heart, Lung, and Blood Institute (Grant Nos. UM1 HG008900 and R01 HG009141).

Sequencing and analysis of cases 5 and 18 was funded by the National Institute of Child Human Development (Grant Nos. K23 HD088742 and R01 HD105868 [to N.L.V.]).

Publisher Copyright: © 2022 American College of Medical Genetics and Genomics


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