Generation and heterozygous repair of human iPSC lines from two individuals with the neurodevelopmental disorder, TRAPPC4 deficiency

A rare neurodevelopmental disorder has been linked to a well-conserved splice site variant in the TRAPPC4 gene (c.454 + 3A > G), which causes mis-splicing of TRAPPC4 transcripts and reduced levels of TRAPPC4 protein. Patients present with severe progressive neurological symptoms including seizure...

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Main Authors: Riley Hall, Tim Sikora, Annabelle Suter, Jia Yi Kuah, John Christodoulou, Nicole J Van Bergen
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Stem Cell Research
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Online Access:http://www.sciencedirect.com/science/article/pii/S1873506124003386
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author Riley Hall
Tim Sikora
Annabelle Suter
Jia Yi Kuah
John Christodoulou
Nicole J Van Bergen
author_facet Riley Hall
Tim Sikora
Annabelle Suter
Jia Yi Kuah
John Christodoulou
Nicole J Van Bergen
author_sort Riley Hall
collection DOAJ
description A rare neurodevelopmental disorder has been linked to a well-conserved splice site variant in the TRAPPC4 gene (c.454 + 3A > G), which causes mis-splicing of TRAPPC4 transcripts and reduced levels of TRAPPC4 protein. Patients present with severe progressive neurological symptoms including seizures, microcephaly, intellectual disability and facial dysmorphism. We have generated stem cells from fibroblasts of two individuals with the same homozygous TRAPPC4 c.454 + 3A > G pathogenic variant and used CRISPR/Cas9 editing to generate heterozygous gene-corrected isogenic controls. Clones were tested for pluripotency, differentiation potential, genotyped and karyotyped. These iPSC-based models will be used to understand disease mechanisms of TRAPPC4 disorder.
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institution Kabale University
issn 1873-5061
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publishDate 2025-02-01
publisher Elsevier
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series Stem Cell Research
spelling doaj-art-3c9c633cc7c64b91b5d7e95d14a72b6f2025-01-13T04:18:42ZengElsevierStem Cell Research1873-50612025-02-0182103640Generation and heterozygous repair of human iPSC lines from two individuals with the neurodevelopmental disorder, TRAPPC4 deficiencyRiley Hall0Tim Sikora1Annabelle Suter2Jia Yi Kuah3John Christodoulou4Nicole J Van Bergen5Murdoch Children’s Research Institute, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria, AustraliaMurdoch Children’s Research Institute, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria, AustraliaMurdoch Children’s Research Institute, Parkville, Victoria, AustraliaMurdoch Children’s Research Institute, Parkville, Victoria, AustraliaMurdoch Children’s Research Institute, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria, AustraliaMurdoch Children’s Research Institute, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia; Corresponding author at: Murdoch Children’s Research Institute, Parkville, Victoria, Australia.A rare neurodevelopmental disorder has been linked to a well-conserved splice site variant in the TRAPPC4 gene (c.454 + 3A > G), which causes mis-splicing of TRAPPC4 transcripts and reduced levels of TRAPPC4 protein. Patients present with severe progressive neurological symptoms including seizures, microcephaly, intellectual disability and facial dysmorphism. We have generated stem cells from fibroblasts of two individuals with the same homozygous TRAPPC4 c.454 + 3A > G pathogenic variant and used CRISPR/Cas9 editing to generate heterozygous gene-corrected isogenic controls. Clones were tested for pluripotency, differentiation potential, genotyped and karyotyped. These iPSC-based models will be used to understand disease mechanisms of TRAPPC4 disorder.http://www.sciencedirect.com/science/article/pii/S1873506124003386TRAPPC4TRAPPopathyNeurodevelopmental disorderSeizuresMicrocephalyStem cell
spellingShingle Riley Hall
Tim Sikora
Annabelle Suter
Jia Yi Kuah
John Christodoulou
Nicole J Van Bergen
Generation and heterozygous repair of human iPSC lines from two individuals with the neurodevelopmental disorder, TRAPPC4 deficiency
Stem Cell Research
TRAPPC4
TRAPPopathy
Neurodevelopmental disorder
Seizures
Microcephaly
Stem cell
title Generation and heterozygous repair of human iPSC lines from two individuals with the neurodevelopmental disorder, TRAPPC4 deficiency
title_full Generation and heterozygous repair of human iPSC lines from two individuals with the neurodevelopmental disorder, TRAPPC4 deficiency
title_fullStr Generation and heterozygous repair of human iPSC lines from two individuals with the neurodevelopmental disorder, TRAPPC4 deficiency
title_full_unstemmed Generation and heterozygous repair of human iPSC lines from two individuals with the neurodevelopmental disorder, TRAPPC4 deficiency
title_short Generation and heterozygous repair of human iPSC lines from two individuals with the neurodevelopmental disorder, TRAPPC4 deficiency
title_sort generation and heterozygous repair of human ipsc lines from two individuals with the neurodevelopmental disorder trappc4 deficiency
topic TRAPPC4
TRAPPopathy
Neurodevelopmental disorder
Seizures
Microcephaly
Stem cell
url http://www.sciencedirect.com/science/article/pii/S1873506124003386
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