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Accogli A, Zaki MS, Al-Owain M, Otaif MY, Jackson A, Argilli E, Chandler KE, De Goede CGEL, Cora T, Alvi JR, Eslahi A, Asl Mohajeri MS, Ashtiani S, Au PYB, Scocchia A, Alakurtti K, Pagnamenta AT, Toosi MB, Karimiani EG, Mojarrad M, Arab F, Duymuş F, Scantlebury MH, Yeşil G, Rosenfeld JA, Türkyılmaz A, Sağer SG, Sultan T, Ashrafzadeh F, Zahra T, Rahman F, Maqbool S, Abdel-Hamid MS, Issa MY, Efthymiou S, Bauer P, Zifarelli G, Salpietro V, Al-Hassnan Z, Banka S, Sherr EH, Gleeson JG, Striano P, Houlden H, Severino M, Maroofian R. Lunapark deficiency leads to an autosomal recessive neurodevelopmental phenotype with a degenerative course, epilepsy and distinct brain anomalies. Brain Commun 2023; 5:fcad222. [PMID: 37794925 PMCID: PMC10546953 DOI: 10.1093/braincomms/fcad222] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/29/2023] [Accepted: 08/15/2023] [Indexed: 10/06/2023] Open
Abstract
LNPK encodes a conserved membrane protein that stabilizes the junctions of the tubular endoplasmic reticulum network playing crucial roles in diverse biological functions. Recently, homozygous variants in LNPK were shown to cause a neurodevelopmental disorder (OMIM#618090) in four patients displaying developmental delay, epilepsy and nonspecific brain malformations including corpus callosum hypoplasia and variable impairment of cerebellum. We sought to delineate the molecular and phenotypic spectrum of LNPK-related disorder. Exome or genome sequencing was carried out in 11 families. Thorough clinical and neuroradiological evaluation was performed for all the affected individuals, including review of previously reported patients. We identified 12 distinct homozygous loss-of-function variants in 16 individuals presenting with moderate to profound developmental delay, cognitive impairment, regression, refractory epilepsy and a recognizable neuroimaging pattern consisting of corpus callosum hypoplasia and signal alterations of the forceps minor ('ear-of-the-lynx' sign), variably associated with substantia nigra signal alterations, mild brain atrophy, short midbrain and cerebellar hypoplasia/atrophy. In summary, we define the core phenotype of LNPK-related disorder and expand the list of neurological disorders presenting with the 'ear-of-the-lynx' sign suggesting a possible common underlying mechanism related to endoplasmic reticulum-phagy dysfunction.
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Affiliation(s)
- Andrea Accogli
- Division of Medical Genetics, Department of Specialized Medicine, McGill University, Montreal H3G 1A4, Canada
- Department of Human Genetics, McGill University, Montreal, QC H3A 0C7, Canada
| | - Maha S Zaki
- Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo 12622, Egypt
| | - Mohammed Al-Owain
- Department of Medical Genomics, Center for Genomics Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Mansour Y Otaif
- Department of Pediatric, Neurology Section, Abha Maternity and Childern Hospital, Abha 62521, Saudi Arabia
| | - Adam Jackson
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK
- Manchester Centre for Genomic Medicine, University of Manchester, St Mary’s Hospital, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
| | - Emanuela Argilli
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Kate E Chandler
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK
- Manchester Centre for Genomic Medicine, University of Manchester, St Mary’s Hospital, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
| | - Christian G E L De Goede
- Department of Paediatric Neurology, Clinical Research Facility, Lancashire Teaching Hospital NHS Trust, Preston PR2 9HT, UK
| | - Tülün Cora
- Department of Medical Genetics, Selcuk University School of Medicine, Konya 42100, Turkey
| | - Javeria Raza Alvi
- Department of Pediatric Neurology, Institute of Child Health, Children's Hospital, Lahore 54590, Pakistan
| | - Atieh Eslahi
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 9137-86177, Iran
| | - Mahsa Sadat Asl Mohajeri
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
| | - Setareh Ashtiani
- Alberta Children’s Hospital Research Institute, Department of Medical Genetics, University of Calgary, Alberta T2N 4Z6, Canada
| | - P Y Billie Au
- Alberta Children’s Hospital Research Institute, Department of Medical Genetics, University of Calgary, Alberta T2N 4Z6, Canada
| | | | | | - Alistair T Pagnamenta
- NIHR Biomedical Research Centre, Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Mehran Beiraghi Toosi
- Pediatric Neurology Department, Mashhad University of Medical Sciences, Mashhad 913791-6847, Iran
- Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad 91375-33116, Iran
| | - Ehsan Ghayoor Karimiani
- Molecular and Clinical Sciences Institute, St. George’s, University of London, Cranmer Terrace, London SW17 0RE, UK
- Department of Medical Genetics, Next Generation Genetic Polyclinic, Mashhad 91869-51591, Iran
| | - Majid Mojarrad
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 9137-86177, Iran
- Genetic Center of Khorasan Razavi, Mashhad 91877-53831, Iran
| | - Fatemeh Arab
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran 1411713135, Iran
| | - Fahrettin Duymuş
- Department of Medical Genetics, Selcuk University School of Medicine, Konya 42100, Turkey
- Department of Medical Genetics, Konya City Hospital, Konya 42020, Turkey
| | - Morris H Scantlebury
- Departments of Pediatrics and Clinical Neuroscience, University of Calgary; Alberta Children’s Hospital Research Institute, Hotchkiss Brain Institute & Owerko Center, University of Calgary, Alberta T2N 4N1, Canada
| | - Gözde Yeşil
- Department of Medical Genetics, Istanbul Medical Faculty, Istanbul University, Istanbul 34093, Turkey
| | - Jill Anne Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Baylor Genetics Laboratories, Houston, TX 77021, USA
| | - Ayberk Türkyılmaz
- Department of Medical Genetics, Karadeniz Technical University Faculty of Medicine, Trabzon 61080, Turkey
| | - Safiye Güneş Sağer
- Clinics of Pediatric Neurology, Kartal Dr. Lütfi Kırdar City Hospital, İstanbul 34890, Turkey
| | - Tipu Sultan
- Department of Pediatric Neurology, Institute of Child Health, Children's Hospital, Lahore 54590, Pakistan
| | - Farah Ashrafzadeh
- Pediatric Neurology Department, Mashhad University of Medical Sciences, Mashhad 913791-6847, Iran
| | - Tatheer Zahra
- Department of Developmental-Behavioral Pediatrics, University of Child Health Sciences, The Children’s Hospital, Lahore 54590, Pakistan
| | - Fatima Rahman
- Department of Developmental-Behavioral Pediatrics, University of Child Health Sciences, The Children’s Hospital, Lahore 54590, Pakistan
| | - Shazia Maqbool
- Department of Developmental-Behavioral Pediatrics, University of Child Health Sciences, The Children’s Hospital, Lahore 54590, Pakistan
| | - Mohamed S Abdel-Hamid
- Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo 12622, Egypt
| | - Mahmoud Y Issa
- Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo 12622, Egypt
| | - Stephanie Efthymiou
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, Queen Square, London WC1N 3BG, UK
| | | | | | - Vincenzo Salpietro
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, Queen Square, London WC1N 3BG, UK
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila 67100, Italy
| | - Zuhair Al-Hassnan
- Department of Medical Genomics, Center for Genomics Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Siddharth Banka
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK
- Manchester Centre for Genomic Medicine, University of Manchester, St Mary’s Hospital, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
| | - Elliot H Sherr
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Joseph G Gleeson
- Department of Neurosciences, University of California, San Diego, La Jolla 92093, USA
- Rady Children’s Institute for Genomic Medicine, San Diego 92123, USA
| | - Pasquale Striano
- Department of Neurosciences Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa 16132, Italy
- Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto ‘Giannina Gaslini’, Genoa 16147, Italy
| | - Henry Houlden
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, Queen Square, London WC1N 3BG, UK
| | | | - Reza Maroofian
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, Queen Square, London WC1N 3BG, UK
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Hasan MR, Koskenranta A, Alakurtti K, Takatalo M, Rice DP. RAB23 regulates musculoskeletal development and patterning. Front Cell Dev Biol 2023; 11:1049131. [PMID: 36910145 PMCID: PMC9995984 DOI: 10.3389/fcell.2023.1049131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 02/07/2023] [Indexed: 02/25/2023] Open
Abstract
RAB23 is a small GTPase which functions at the plasma membrane to regulate growth factor signaling. Mutations in RAB23 cause Carpenter syndrome, a condition that affects normal organogenesis and patterning. In this study, we investigate the role of RAB23 in musculoskeletal development and show that it is required for patella bone formation and for the maintenance of tendon progenitors. The patella is the largest sesamoid bone in mammals and plays a critical role during movement by providing structural and mechanical support to the knee. Rab23 -/- mice fail to form a patella and normal knee joint. The patella is formed from Sox9 and scleraxis (Scx) double-positive chondroprogenitor cells. We show that RAB23 is required for the specification of SOX9 and scleraxis double-positive patella chondroprogenitors during the formation of patella anlagen and the subsequent establishment of patellofemoral joint. We find that scleraxis and SOX9 expression are disrupted in Rab23 -/- mice, and as a result, development of the quadriceps tendons, cruciate ligaments, patella tendons, and entheses is either abnormal or lost. TGFβ-BMP signaling is known to regulate patella initiation and patella progenitor differentiation and growth. We find that the expression of TGFβR2, BMPR1, BMP4, and pSmad are barely detectable in the future patella site and in the rudimentary tendons and ligaments around the patellofemoral joint in Rab23 -/- mice. Also, we show that GLI1, SOX9, and scleraxis, which regulate entheses establishment and maturation, are weakly expressed in Rab23 -/- mice. Further analysis of the skeletal phenotype of Rab23 -/- mice showed a close resemblance to that of Tgfβ2 -/- mice, highlighting a possible role for RAB23 in regulating TGFβ superfamily signaling.
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Affiliation(s)
- Md Rakibul Hasan
- Orthodontics, Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Anna Koskenranta
- Orthodontics, Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Kirsi Alakurtti
- Orthodontics, Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Maarit Takatalo
- Orthodontics, Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - David P Rice
- Orthodontics, Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Helsinki University Hospital, Helsinki, Finland
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Anttila V, Stefansson H, Kallela M, Todt U, Terwindt GM, Calafato MS, Nyholt DR, Dimas AS, Freilinger T, Müller-Myhsok B, Artto V, Inouye M, Alakurtti K, Kaunisto MA, Hämäläinen E, de Vries B, Stam AH, Weller CM, Heinze A, Heinze-Kuhn K, Goebel I, Borck G, Göbel H, Steinberg S, Wolf C, Björnsson A, Gudmundsson G, Kirchmann M, Hauge A, Werge T, Schoenen J, Eriksson JG, Hagen K, Stovner L, Wichmann HE, Meitinger T, Alexander M, Moebus S, Schreiber S, Aulchenko YS, Breteler MMB, Uitterlinden AG, Hofman A, van Duijn CM, Tikka-Kleemola P, Vepsäläinen S, Lucae S, Tozzi F, Muglia P, Barrett J, Kaprio J, Färkkilä M, Peltonen L, Stefansson K, Zwart JA, Ferrari MD, Olesen J, Daly M, Wessman M, van den Maagdenberg AMJM, Dichgans M, Kubisch C, Dermitzakis ET, Frants RR, Palotie A. Genome-wide association study of migraine implicates a common susceptibility variant on 8q22.1. Nat Genet 2010; 42:869-73. [PMID: 20802479 PMCID: PMC2948563 DOI: 10.1038/ng.652] [Citation(s) in RCA: 273] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Accepted: 07/02/2010] [Indexed: 11/17/2022]
Abstract
Migraine is a common episodic neurological disorder, typically presenting with recurrent attacks of severe headache and autonomic dysfunction. Apart from rare monogenic subtypes, no genetic or molecular markers for migraine have been convincingly established. We identified the minor allele of rs1835740 on chromosome 8q22.1 to be associated with migraine (p=5.12 × 10−9, OR 1.23 [1.150-1.324]) in a genome-wide association study of 2,748 migraineurs from three European headache clinics and 10,747 population-matched controls. The association was replicated in 3,202 cases and 40,062 controls for an overall meta-analysis p-value of 1.60 × 10−11 (OR 1.18 [1.127 – 1.244]). rs1835740 is located between the astrocyte elevated gene 1 (MTDH/AEG-1) and plasma glutamate carboxypeptidase (PGCP). In an expression quantitative trait study in lymphoblastoid cell lines transcript levels of the MTDH/AEG-1 were found to have a significant correlation to rs1835740. Our data establish rs1835740 as the first genetic risk factor for migraine.
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Affiliation(s)
- Verneri Anttila
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge, UK.
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Nyholt DR, LaForge KS, Kallela M, Alakurtti K, Anttila V, Färkkilä M, Hämaläinen E, Kaprio J, Kaunisto MA, Heath AC, Montgomery GW, Göbel H, Todt U, Ferrari MD, Launer LJ, Frants RR, Terwindt GM, de Vries B, Verschuren WMM, Brand J, Freilinger T, Pfaffenrath V, Straube A, Ballinger DG, Zhan Y, Daly MJ, Cox DR, Dichgans M, van den Maagdenberg AMJM, Kubisch C, Martin NG, Wessman M, Peltonen L, Palotie A. A high-density association screen of 155 ion transport genes for involvement with common migraine. Hum Mol Genet 2008; 17:3318-31. [PMID: 18676988 DOI: 10.1093/hmg/ddn227] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The clinical overlap between monogenic Familial Hemiplegic Migraine (FHM) and common migraine subtypes, and the fact that all three FHM genes are involved in the transport of ions, suggest that ion transport genes may underlie susceptibility to common forms of migraine. To test this leading hypothesis, we examined common variation in 155 ion transport genes using 5257 single nucleotide polymorphisms (SNPs) in a Finnish sample of 841 unrelated migraine with aura cases and 884 unrelated non-migraine controls. The top signals were then tested for replication in four independent migraine case-control samples from the Netherlands, Germany and Australia, totalling 2835 unrelated migraine cases and 2740 unrelated controls. SNPs within 12 genes (KCNB2, KCNQ3, CLIC5, ATP2C2, CACNA1E, CACNB2, KCNE2, KCNK12, KCNK2, KCNS3, SCN5A and SCN9A) with promising nominal association (0.00041 < P < 0.005) in the Finnish sample were selected for replication. Although no variant remained significant after adjusting for multiple testing nor produced consistent evidence for association across all cohorts, a significant epistatic interaction between KCNB2 SNP rs1431656 (chromosome 8q13.3) and CACNB2 SNP rs7076100 (chromosome 10p12.33) (pointwise P = 0.00002; global P = 0.02) was observed in the Finnish case-control sample. We conclude that common variants of moderate effect size in ion transport genes do not play a major role in susceptibility to common migraine within these European populations, although there is some evidence for epistatic interaction between potassium and calcium channel genes, KCNB2 and CACNB2. Multiple rare variants or trans-regulatory elements of these genes are not ruled out.
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Affiliation(s)
- Dale R Nyholt
- Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, PO Royal Brisbane Hospital, Brisbane4029, Queensland, Australia.
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