Multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsy

Abstract Clustering Epilepsy (CE) is an epileptic disorder with neurological comorbidities caused by heterozygous variants of the X chromosome gene Protocadherin 19 (PCDH19). Recent studies have implicated dysregulation of the Nuclear Hormone Receptor (NHR) pathway in CE pathogenesis. To obtain a co...

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Main Authors: Rebekah de Nys, Clare L. van Eyk, Tarin Ritchie, Rikke S. Møller, Ingrid E. Scheffer, Carla Marini, Rudrarup Bhattacharjee, Raman Kumar, Jozef Gecz
Format: Article
Language:English
Published: Nature Publishing Group 2024-01-01
Series:Translational Psychiatry
Online Access:https://doi.org/10.1038/s41398-024-02783-5
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author Rebekah de Nys
Clare L. van Eyk
Tarin Ritchie
Rikke S. Møller
Ingrid E. Scheffer
Carla Marini
Rudrarup Bhattacharjee
Raman Kumar
Jozef Gecz
author_facet Rebekah de Nys
Clare L. van Eyk
Tarin Ritchie
Rikke S. Møller
Ingrid E. Scheffer
Carla Marini
Rudrarup Bhattacharjee
Raman Kumar
Jozef Gecz
author_sort Rebekah de Nys
collection DOAJ
description Abstract Clustering Epilepsy (CE) is an epileptic disorder with neurological comorbidities caused by heterozygous variants of the X chromosome gene Protocadherin 19 (PCDH19). Recent studies have implicated dysregulation of the Nuclear Hormone Receptor (NHR) pathway in CE pathogenesis. To obtain a comprehensive overview of the impact and mechanisms of loss of PCDH19 function in CE pathogenesis, we have performed epigenomic, transcriptomic and proteomic analysis of CE relevant models. Our studies identified differential regulation and expression of Androgen Receptor (AR) and its targets in CE patient skin fibroblasts. Furthermore, our cell culture assays revealed the repression of PCDH19 expression mediated through ERα and the co-regulator FOXA1. We also identified a protein-protein interaction between PCDH19 and AR, expanding upon the intrinsic link between PCDH19 and the NHR pathway. Together, these results point to a novel mechanism of NHR signaling in the pathogenesis of CE that can be explored for potential therapeutic options.
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spelling doaj.art-49c5d18714fc434c9a7aaf572909f7c52024-03-05T17:06:33ZengNature Publishing GroupTranslational Psychiatry2158-31882024-01-011411910.1038/s41398-024-02783-5Multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsyRebekah de Nys0Clare L. van Eyk1Tarin Ritchie2Rikke S. Møller3Ingrid E. Scheffer4Carla Marini5Rudrarup Bhattacharjee6Raman Kumar7Jozef Gecz8Adelaide Medical School and Robinson Research Institute, The University of AdelaideAdelaide Medical School and Robinson Research Institute, The University of AdelaideAdelaide Medical School and Robinson Research Institute, The University of AdelaideDepartment of Epilepsy Genetics and Personalized Medicine (member of ERN EpiCARE), Danish Epilepsy CentreEpilepsy Research Centre, University of Melbourne, Austin HealthChild Neurology and Psychiatry Unit Children’s Hospital “G. Salesi” Azienda Ospedaliero-Universitaria delle Marche AnconaAdelaide Medical School and Robinson Research Institute, The University of AdelaideAdelaide Medical School and Robinson Research Institute, The University of AdelaideAdelaide Medical School and Robinson Research Institute, The University of AdelaideAbstract Clustering Epilepsy (CE) is an epileptic disorder with neurological comorbidities caused by heterozygous variants of the X chromosome gene Protocadherin 19 (PCDH19). Recent studies have implicated dysregulation of the Nuclear Hormone Receptor (NHR) pathway in CE pathogenesis. To obtain a comprehensive overview of the impact and mechanisms of loss of PCDH19 function in CE pathogenesis, we have performed epigenomic, transcriptomic and proteomic analysis of CE relevant models. Our studies identified differential regulation and expression of Androgen Receptor (AR) and its targets in CE patient skin fibroblasts. Furthermore, our cell culture assays revealed the repression of PCDH19 expression mediated through ERα and the co-regulator FOXA1. We also identified a protein-protein interaction between PCDH19 and AR, expanding upon the intrinsic link between PCDH19 and the NHR pathway. Together, these results point to a novel mechanism of NHR signaling in the pathogenesis of CE that can be explored for potential therapeutic options.https://doi.org/10.1038/s41398-024-02783-5
spellingShingle Rebekah de Nys
Clare L. van Eyk
Tarin Ritchie
Rikke S. Møller
Ingrid E. Scheffer
Carla Marini
Rudrarup Bhattacharjee
Raman Kumar
Jozef Gecz
Multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsy
Translational Psychiatry
title Multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsy
title_full Multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsy
title_fullStr Multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsy
title_full_unstemmed Multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsy
title_short Multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsy
title_sort multiomic analysis implicates nuclear hormone receptor signalling in clustering epilepsy
url https://doi.org/10.1038/s41398-024-02783-5
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