Bi-allelic variants in WDR47 cause a complex neurodevelopmental syndrome

Abstract Brain development requires the coordinated growth of structures and cues that are essential for forming neural circuits and cognitive functions. The corpus callosum, the largest interhemispheric connection, is formed by the axons of callosal projection neurons through a series of tightly re...

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Main Authors: Efil Bayam, Peggy Tilly, Stephan C Collins, José Rivera Alvarez, Meghna Kannan, Lucile Tonneau, Elena Brivio, Bruno Rinaldi, Romain Lecat, Noémie Schwaller, Ludovica Cotellessa, Sateesh Maddirevula, Fabiola Monteiro, Carlos M Guardia, João Paulo Kitajima, Fernando Kok, Mitsuhiro Kato, Ahlam A A Hamed, Mustafa A Salih, Saeed Al Tala, Mais O Hashem, Hiroko Tada, Hirotomo Saitsu, Mariano Stabile, Paolo Giacobini, Sylvie Friant, Zafer Yüksel, Mitsuko Nakashima, Fowzan S Alkuraya, Binnaz Yalcin, Juliette D Godin
Format: Article
Language:English
Published: Springer Nature 2024-11-01
Series:EMBO Molecular Medicine
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Online Access:https://doi.org/10.1038/s44321-024-00178-z
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author Efil Bayam
Peggy Tilly
Stephan C Collins
José Rivera Alvarez
Meghna Kannan
Lucile Tonneau
Elena Brivio
Bruno Rinaldi
Romain Lecat
Noémie Schwaller
Ludovica Cotellessa
Sateesh Maddirevula
Fabiola Monteiro
Carlos M Guardia
João Paulo Kitajima
Fernando Kok
Mitsuhiro Kato
Ahlam A A Hamed
Mustafa A Salih
Saeed Al Tala
Mais O Hashem
Hiroko Tada
Hirotomo Saitsu
Mariano Stabile
Paolo Giacobini
Sylvie Friant
Zafer Yüksel
Mitsuko Nakashima
Fowzan S Alkuraya
Binnaz Yalcin
Juliette D Godin
author_facet Efil Bayam
Peggy Tilly
Stephan C Collins
José Rivera Alvarez
Meghna Kannan
Lucile Tonneau
Elena Brivio
Bruno Rinaldi
Romain Lecat
Noémie Schwaller
Ludovica Cotellessa
Sateesh Maddirevula
Fabiola Monteiro
Carlos M Guardia
João Paulo Kitajima
Fernando Kok
Mitsuhiro Kato
Ahlam A A Hamed
Mustafa A Salih
Saeed Al Tala
Mais O Hashem
Hiroko Tada
Hirotomo Saitsu
Mariano Stabile
Paolo Giacobini
Sylvie Friant
Zafer Yüksel
Mitsuko Nakashima
Fowzan S Alkuraya
Binnaz Yalcin
Juliette D Godin
author_sort Efil Bayam
collection DOAJ
description Abstract Brain development requires the coordinated growth of structures and cues that are essential for forming neural circuits and cognitive functions. The corpus callosum, the largest interhemispheric connection, is formed by the axons of callosal projection neurons through a series of tightly regulated cellular events, including neuronal specification, migration, axon extension and branching. Defects in any of those steps can lead to a range of disorders known as syndromic corpus callosum dysgenesis (CCD). We report five unrelated families carrying bi-allelic variants in WDR47 presenting with CCD together with other neuroanatomical phenotypes such as microcephaly and enlarged ventricles. Using in vitro and in vivo mouse models and complementation assays, we show that WDR47 is required for survival of callosal neurons by contributing to the maintenance of mitochondrial and microtubule homeostasis. We further propose that severity of the CCD phenotype is determined by the degree of the loss of function caused by the human variants. Taken together, we identify WDR47 as a causative gene of a new neurodevelopmental syndrome characterized by corpus callosum abnormalities and other neuroanatomical malformations.
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spelling doaj-art-4825b143d3974af5a2d0c60faa5be7902025-01-19T12:34:35ZengSpringer NatureEMBO Molecular Medicine1757-46842024-11-0117112916810.1038/s44321-024-00178-zBi-allelic variants in WDR47 cause a complex neurodevelopmental syndromeEfil Bayam0Peggy Tilly1Stephan C Collins2José Rivera Alvarez3Meghna Kannan4Lucile Tonneau5Elena Brivio6Bruno Rinaldi7Romain Lecat8Noémie Schwaller9Ludovica Cotellessa10Sateesh Maddirevula11Fabiola Monteiro12Carlos M Guardia13João Paulo Kitajima14Fernando Kok15Mitsuhiro Kato16Ahlam A A Hamed17Mustafa A Salih18Saeed Al Tala19Mais O Hashem20Hiroko Tada21Hirotomo Saitsu22Mariano Stabile23Paolo Giacobini24Sylvie Friant25Zafer Yüksel26Mitsuko Nakashima27Fowzan S Alkuraya28Binnaz Yalcin29Juliette D Godin30Institut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCInstitut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCInstitut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCInstitut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCInstitut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCUniversité de Bourgogne, INSERM UMR1231Institut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCUniversité de Strasbourg, CNRS, GMGM UMR7156Institut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCInstitut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCUniversité de Lille, INSERM, CHU Lille, Laboratory of Development and Plasticity of the Neuroendocrine Brain, Lille Neuroscience & Cognition UMR-S 1172Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research CenterMendelics Análise Genomica SA, CEP 02511-000Placental Cell Biology Group, National Institute of Environmental Health Sciences, National Institutes of HealthMendelics Análise Genomica SA, CEP 02511-000Mendelics Análise Genomica SA, CEP 02511-000Department of Pediatrics, Showa University School of MedicineDepartment of Pediatric and Child Health, Faculty of Medicine University of KhartoumHealth Sector, King Abdulaziz City for Science and TechnologyDepartment of Pediatrics, Genetic Unit, Armed Forces HospitalDepartment of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research CenterDepartment of Brain and Neurosciences, Tokyo Metropolitan Institute of Medical ScienceDepartment of Biochemistry, Hamamatsu University School of MedicineCenter of Genetics and Prenatal Diagnosis “Zygote”Université de Lille, INSERM, CHU Lille, Laboratory of Development and Plasticity of the Neuroendocrine Brain, Lille Neuroscience & Cognition UMR-S 1172Université de Strasbourg, CNRS, GMGM UMR7156Human Genetics, Bioscientia GmbHDepartment of Biochemistry, Hamamatsu University School of MedicineDepartment of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research CenterInstitut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCInstitut de Génétique et de Biologie Moléculaire et Cellulaire, IGBMCAbstract Brain development requires the coordinated growth of structures and cues that are essential for forming neural circuits and cognitive functions. The corpus callosum, the largest interhemispheric connection, is formed by the axons of callosal projection neurons through a series of tightly regulated cellular events, including neuronal specification, migration, axon extension and branching. Defects in any of those steps can lead to a range of disorders known as syndromic corpus callosum dysgenesis (CCD). We report five unrelated families carrying bi-allelic variants in WDR47 presenting with CCD together with other neuroanatomical phenotypes such as microcephaly and enlarged ventricles. Using in vitro and in vivo mouse models and complementation assays, we show that WDR47 is required for survival of callosal neurons by contributing to the maintenance of mitochondrial and microtubule homeostasis. We further propose that severity of the CCD phenotype is determined by the degree of the loss of function caused by the human variants. Taken together, we identify WDR47 as a causative gene of a new neurodevelopmental syndrome characterized by corpus callosum abnormalities and other neuroanatomical malformations.https://doi.org/10.1038/s44321-024-00178-zWDR47Corpus Callosum DysgenesisNeurodevelopmental DisorderCallosal NeuronsMicrotubule and Mitochondrial Homeostasis
spellingShingle Efil Bayam
Peggy Tilly
Stephan C Collins
José Rivera Alvarez
Meghna Kannan
Lucile Tonneau
Elena Brivio
Bruno Rinaldi
Romain Lecat
Noémie Schwaller
Ludovica Cotellessa
Sateesh Maddirevula
Fabiola Monteiro
Carlos M Guardia
João Paulo Kitajima
Fernando Kok
Mitsuhiro Kato
Ahlam A A Hamed
Mustafa A Salih
Saeed Al Tala
Mais O Hashem
Hiroko Tada
Hirotomo Saitsu
Mariano Stabile
Paolo Giacobini
Sylvie Friant
Zafer Yüksel
Mitsuko Nakashima
Fowzan S Alkuraya
Binnaz Yalcin
Juliette D Godin
Bi-allelic variants in WDR47 cause a complex neurodevelopmental syndrome
EMBO Molecular Medicine
WDR47
Corpus Callosum Dysgenesis
Neurodevelopmental Disorder
Callosal Neurons
Microtubule and Mitochondrial Homeostasis
title Bi-allelic variants in WDR47 cause a complex neurodevelopmental syndrome
title_full Bi-allelic variants in WDR47 cause a complex neurodevelopmental syndrome
title_fullStr Bi-allelic variants in WDR47 cause a complex neurodevelopmental syndrome
title_full_unstemmed Bi-allelic variants in WDR47 cause a complex neurodevelopmental syndrome
title_short Bi-allelic variants in WDR47 cause a complex neurodevelopmental syndrome
title_sort bi allelic variants in wdr47 cause a complex neurodevelopmental syndrome
topic WDR47
Corpus Callosum Dysgenesis
Neurodevelopmental Disorder
Callosal Neurons
Microtubule and Mitochondrial Homeostasis
url https://doi.org/10.1038/s44321-024-00178-z
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