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Werren EA, Peirent ER, Jantti H, Guxholli A, Srivastava KR, Orenstein N, Narayanan V, Wiszniewski W, Dawidziuk M, Gawlinski P, Umair M, Khan A, Khan SN, Geneviève D, Lehalle D, van Gassen KLI, Giltay JC, Oegema R, van Jaarsveld RH, Rafiullah R, Rappold GA, Rabin R, Pappas JG, Wheeler MM, Bamshad MJ, Tsan YC, Johnson MB, Keegan CE, Srivastava A, Bielas SL. Biallelic variants in CSMD1 are implicated in a neurodevelopmental disorder with intellectual disability and variable cortical malformations. Cell Death Dis 2024; 15:379. [PMID: 38816421 PMCID: PMC11140003 DOI: 10.1038/s41419-024-06768-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 05/03/2024] [Accepted: 05/22/2024] [Indexed: 06/01/2024]
Abstract
CSMD1 (Cub and Sushi Multiple Domains 1) is a well-recognized regulator of the complement cascade, an important component of the innate immune response. CSMD1 is highly expressed in the central nervous system (CNS) where emergent functions of the complement pathway modulate neural development and synaptic activity. While a genetic risk factor for neuropsychiatric disorders, the role of CSMD1 in neurodevelopmental disorders is unclear. Through international variant sharing, we identified inherited biallelic CSMD1 variants in eight individuals from six families of diverse ancestry who present with global developmental delay, intellectual disability, microcephaly, and polymicrogyria. We modeled CSMD1 loss-of-function (LOF) pathogenesis in early-stage forebrain organoids differentiated from CSMD1 knockout human embryonic stem cells (hESCs). We show that CSMD1 is necessary for neuroepithelial cytoarchitecture and synchronous differentiation. In summary, we identified a critical role for CSMD1 in brain development and biallelic CSMD1 variants as the molecular basis of a previously undefined neurodevelopmental disorder.
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Affiliation(s)
- Elizabeth A Werren
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
- Advanced Precision Medicine Laboratory, The Jackson Laboratory for Genomic Medicine, Farmington, CTt, 06032, USA
| | - Emily R Peirent
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Henna Jantti
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Alba Guxholli
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Kinshuk Raj Srivastava
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Naama Orenstein
- Schneider Children's Medical Center of Israel, Petah Tikva, 4920235, Israel
| | - Vinodh Narayanan
- Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, AZ, 85004, USA
| | - Wojciech Wiszniewski
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Mateusz Dawidziuk
- Department of Medical Genetics, Institute of Mother and Child, Warsaw, 01-211, Poland
| | - Pawel Gawlinski
- Department of Medical Genetics, Institute of Mother and Child, Warsaw, 01-211, Poland
| | - Muhammad Umair
- Medical Genomics Research Department, King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, 11481, Saudi Arabia
- Department of Life Sciences, School of Science, University of Management and Technology, Lahore, Punjab, 54770, Pakistan
| | - Amjad Khan
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, 97239, USA
- Department of Zoology, University of Lakki Marwat, Lakki Marwat, Khyber Pakhtunkhwa, 28420, Pakistan
| | - Shahid Niaz Khan
- Department of Zoology, Kohat University of Science and Technology, Kohat, Pakistan
| | - David Geneviève
- Montpellier University, Inserm Unit U1183, Reference Center for Rare Diseases and Developmental Anomalies, CHU, 34000, Montpellier, France
| | - Daphné Lehalle
- Sorbonne University, Department of Medical Genetics, Hospital Armand Trousseau, 75012, Paris, France
| | - K L I van Gassen
- Department of Genetics, University Medical Centre Utrecht, Utrecht University, Utrecht, 3584 EA, The Netherlands
| | - Jacques C Giltay
- Department of Genetics, University Medical Centre Utrecht, Utrecht University, Utrecht, 3584 EA, The Netherlands
| | - Renske Oegema
- Department of Genetics, University Medical Centre Utrecht, Utrecht University, Utrecht, 3584 EA, The Netherlands
| | - Richard H van Jaarsveld
- Department of Genetics, University Medical Centre Utrecht, Utrecht University, Utrecht, 3584 EA, The Netherlands
| | - Rafiullah Rafiullah
- Department of Biotechnology, Faculty of Life Sciences, BUITEMS, Quetta, 87300, Pakistan
| | - Gudrun A Rappold
- Department of Human Molecular Genetics, Institute of Human Genetics, Ruprecht-Karls-University, Heidelberg, 69120, Germany
| | - Rachel Rabin
- Department of Pediatrics, NYU Grossman School of Medicine, New York, NY, 10016, USA
| | - John G Pappas
- Department of Pediatrics, NYU Grossman School of Medicine, New York, NY, 10016, USA
| | - Marsha M Wheeler
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Michael J Bamshad
- Department of Pediatrics, University of Washington, Seattle, WA, 98195, USA
- Brotman Baty Institute, Washington, 98195, USA
| | - Yao-Chang Tsan
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Matthew B Johnson
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Catherine E Keegan
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Anshika Srivastava
- Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India.
| | - Stephanie L Bielas
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, MI, 48109, USA.
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI, 48109, USA.
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Salemi M, Mandarà LGM, Salluzzo MG, Schillaci FA, Castiglione R, Cordella A, Iorio R, Perrotta CS, Ferri R, Romano C. NGS study in a sicilian case series with a genetic diagnosis for Gerstmann-Sträussler-Scheinker syndrome (PRNP, p.P102L). Mol Biol Rep 2023; 50:9715-9720. [PMID: 37812352 DOI: 10.1007/s11033-023-08764-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 08/16/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUND Gerstmann Sträussler Scheinker (GSS) is an inherited, invariably fatal prion disease. Like other human prion diseases, GSS is caused by missense mutations in the prion protein (PrP) gene (PRNP), and by the formation and overtime accumulation of the misfolded, pathogenic scrapie PrP (PrPSc). The first mutation identified in the PRNP gene, and the one blamed as the main cause of the disease, is c.C305T:p.P102L. METHODS AND RESULTS The Sanger sequencing method was performed on the PRNP gene for the detection of c.C305T:p.P102L mutations in a cohort of 10 subjects; moreover, a study was carried out, using Next Generation Sequencing (NGS), by sequencing a group of genes related to amyotrophic lateral sclerosis (ALS), Alzheimer's disease (AD), movement disorders and dementia which show a phenotypic profile similar to that of GSS. The results obtained from the study using NGS indicate the potential role of other genetic variants which could contribute to the various GSS phenotypes. CONCLUSIONS In conclusion, we highlight the large clinical variability in subjects presenting with GSS and p.P102L, as well as the hypothesis that the mutation in PrP codon 102 alone is not sufficient to trigger the cardinal clinical signs of the disease; furthermore, we do not exclude the possibility that further genetic variants play a decisive role in the aspects of the various phenotypes with which GSS manifests itself.
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Affiliation(s)
| | - Luana G M Mandarà
- U.O.S. Medical Genetics, Maria Paternò Arezzo Hospital, Ragusa, RG, Italy
| | | | | | - Roberto Castiglione
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Angela Cordella
- Genomix4Life Srl, Baronissi, SA, Italy
- Genome Research Center for Health-CRGS, Baronissi, SA, Italy
| | - Roberta Iorio
- Genomix4Life Srl, Baronissi, SA, Italy
- Genome Research Center for Health-CRGS, Baronissi, SA, Italy
| | | | | | - Corrado Romano
- Oasi Research Institute-IRCCS, Troina, EN, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
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Protasova MS, Andreeva TV, Klyushnikov SA, Illarioshkin SN, Rogaev EI. Genetic Variant in GRM1 Underlies Congenital Cerebellar Ataxia with No Obvious Intellectual Disability. Int J Mol Sci 2023; 24:ijms24021551. [PMID: 36675067 PMCID: PMC9865416 DOI: 10.3390/ijms24021551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/15/2023] Open
Abstract
Metabotropic glutamate receptor 1 (mGluR1) plays a crucial role in slow excitatory postsynaptic conductance, synapse formation, synaptic plasticity, and motor control. The GRM1 gene is expressed mainly in the brain, with the highest expression in the cerebellum. Mutations in the GRM1 gene have previously been known to cause autosomal recessive and autosomal dominant spinocerebellar ataxias. In this study, whole-exome sequencing of a patient from a family of Azerbaijani origin with a diagnosis of congenital cerebellar ataxia was performed, and a new homozygous missense mutation in the GRM1 gene was identified. The mutation leads to the homozygous amino acid substitution of p.Thr824Arg in an evolutionarily highly conserved region encoding the transmembrane domain 7, which is critical for ligand binding and modulating of receptor activity. This is the first report in which a mutation has been identified in the last transmembrane domain of the mGluR1, causing a congenital autosomal recessive form of cerebellar ataxia with no obvious intellectual disability. Additionally, we summarized all known presumable pathogenic genetic variants in the GRM1 gene to date. We demonstrated that multiple rare variants in the GRM1 underlie a broad diversity of clinical neurological and behavioral phenotypes depending on the nature and protein topology of the mutation.
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Affiliation(s)
- Maria S. Protasova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Tatiana V. Andreeva
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia
- Center for Genetics and Life Science, Department of Genetics, Sirius University of Science and Technology, 354340 Sochi, Russia
- Centre for Genetics and Genetic Technologies, Department of Genetics, Faculty of Biology, Lomonosov Moscow State University, 119192 Moscow, Russia
- Correspondence: (T.V.A.); (E.I.R.)
| | | | | | - Evgeny I. Rogaev
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia
- Center for Genetics and Life Science, Department of Genetics, Sirius University of Science and Technology, 354340 Sochi, Russia
- Department of Psychiatry, UMass Chan Medical School, Shrewsbury, MA 01545, USA
- Correspondence: (T.V.A.); (E.I.R.)
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