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Ousingsawat J, Talbi K, Gómez-Martín H, Koy A, Fernández-Jaén A, Tekgül H, Serdaroğlu E, Schreiber R, Ortigoza-Escobar JD, Kunzelmann K. Broadening the clinical spectrum: molecular mechanisms and new phenotypes of ANO3-dystonia. Brain 2024; 147:1982-1995. [PMID: 38079528 DOI: 10.1093/brain/awad412] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/02/2023] [Accepted: 11/18/2023] [Indexed: 06/04/2024] Open
Abstract
Anoctamin 3 (ANO3) belongs to a family of transmembrane proteins that form phospholipid scramblases and ion channels. A large number of ANO3 variants were identified as the cause of craniocervical dystonia, but the underlying pathogenic mechanisms remain obscure. It was suggested that ANO3 variants may dysregulate intracellular Ca2+ signalling, as variants in other Ca2+ regulating proteins like hippocalcin were also identified as a cause of dystonia. In this study, we conducted a comprehensive evaluation of the clinical, radiological and molecular characteristics of four individuals from four families who carried heterozygous variants in ANO3. The median age at follow-up was 6.6 years (ranging from 3.8 to 8.7 years). Three individuals presented with hypotonia and motor developmental delay. Two patients exhibited generalized progressive dystonia, while one patient presented with paroxysmal dystonia. Additionally, another patient exhibited early dyskinetic encephalopathy. One patient underwent bipallidal deep brain stimulation (DBS) and showed a mild but noteworthy response, while another patient is currently being considered for DBS treatment. Neuroimaging analysis of brain MRI studies did not reveal any specific abnormalities. The molecular spectrum included two novel ANO3 variants (V561L and S116L) and two previously reported ANO3 variants (A599D and S651N). As anoctamins are suggested to affect intracellular Ca2+ signals, we compared Ca2+ signalling and activation of ion channels in cells expressing wild-type ANO3 and cells expressing anoctamin variants. Novel V561L and S116L variants were compared with previously reported A599D and S651N variants and with wild-type ANO3 expressed in fibroblasts isolated from patients or when overexpressed in HEK293 cells. We identified ANO3 as a Ca2+-activated phospholipid scramblase that also conducts ions. Impaired Ca2+ signalling and compromised activation of Ca2+-dependent K+ channels were detected in cells expressing ANO3 variants. In the brain striatal cells of affected patients, impaired activation of KCa3.1 channels due to compromised Ca2+ signals may lead to depolarized membrane voltage and neuronal hyperexcitability and may also lead to reduced cellular viability, as shown in the present study. In conclusion, our study reveals the association between ANO3 variants and paroxysmal dystonia, representing the first reported link between these variants and this specific dystonic phenotype. We demonstrate that ANO3 functions as a Ca2+-activated phospholipid scramblase and ion channel; cells expressing ANO3 variants exhibit impaired Ca2+ signalling and compromised activation of Ca2+-dependent K+ channels. These findings provide a mechanism for the observed clinical manifestations and highlight the importance of ANO3 for neuronal excitability and cellular viability.
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Affiliation(s)
| | - Khaoula Talbi
- Physiological Institute, University of Regensburg, D-93053 Regensburg, Germany
| | - Hilario Gómez-Martín
- Pediatric Neurology Unit, Department of Pediatrics, Hospital Universitario de Salamanca, 37007 Castilla y Leon, Spain
| | - Anne Koy
- Centre for Rare Diseases, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Köln, Germany
- Department of Pediatrics, Faculty of Medicine and University, Hospital Cologne, University of Cologne, 50931 Köln, Germany
| | - Alberto Fernández-Jaén
- Department of Pediatric Neurology, Hospital Universitario Quirónsalud, 28223 Pozuelo de Alarcón, Madrid, Spain
- School of Medicine, Universidad Europea De Madrid, 28670 Villaviciosa de Odón, Madrid, Spain
| | - Hasan Tekgül
- Division of Pediatric Neurology, Ege Children's Hospital, Ege University Medical School, 35100 Bornova, Izmir, Turkey
| | - Esra Serdaroğlu
- Department of Pediatric Neurology, Gazi University, Emniyet, 06560 Yenimahalle, Ankara, Turkey
| | - Rainer Schreiber
- Physiological Institute, University of Regensburg, D-93053 Regensburg, Germany
| | - Juan Dario Ortigoza-Escobar
- U-703 Centre for Biomedical Research on Rare Diseases (CIBER-ER), Instituto de Salud Carlos III, 08003 Barcelona, Spain
- Movement Disorders Unit, Pediatric Neurology Department, Institut de Recerca Hospital Sant Joan de Déu, 08950 Barcelona, Spain
- European Reference Network for Rare Neurological Diseases (ERN-RND), 08950 Barcelona, Spain
| | - Karl Kunzelmann
- Physiological Institute, University of Regensburg, D-93053 Regensburg, Germany
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Percetti M, Zini M, Soliveri P, Cogiamanian F, Ferrara M, Orunesu E, Ranghetti A, Ferrarese C, Pezzoli G, Garavaglia B, Isaias IU, Sacilotto G. The Clinical Spectrum of ANO3-Report of a New Family and Literature Review. Mov Disord Clin Pract 2024; 11:289-297. [PMID: 38284143 DOI: 10.1002/mdc3.13979] [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: 09/19/2023] [Revised: 11/30/2023] [Accepted: 01/02/2024] [Indexed: 01/30/2024] Open
Abstract
BACKGROUND Mutations in ANO3 are a rare cause of autosomal dominant isolated or combined dystonia, mainly presenting in adulthood. CASES We extensively characterize a new, large ANO3 family with six affected carriers. The proband is a young girl who had suffered from tremor and painful dystonic movements in her right arm since the age of 11 years. She later developed a diffuse dystonic tremor and mild extrapyramidal signs (ie, rigidity and hypodiadochokinesis) in her right arm. She also suffered from psychomotor delay and learning difficulties. Repeated structural and functional neuroimaging were unremarkable. A dystonic tremor was also present in her two sisters. Her paternal aunt, father, and a third older sister presented episodic postural tremor in the arms. The father and one sister also presented learning difficulties. The heterozygous p.G6V variant in ANO3 was identified in all affected subjects. LITERATURE REVIEW Stratification by age at onset divided ANO3 cases into two major groups, where younger patients displayed a more severe phenotype, probably due to variants near the scrambling domain. CONCLUSIONS We describe the phenotype of a new ANO3 family and highlight the need for functional studies to explore the impact of ANO3 variants on its phospholipid scrambling activity.
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Affiliation(s)
- Marco Percetti
- Parkinson Institute, ASST G. Pini-CTO, Milan, Italy
- School of Medicine and Surgery and Milan Center for Neuroscience, University of Milan-Bicocca, Milan, Italy
- Foundation IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Michela Zini
- Parkinson Institute, ASST G. Pini-CTO, Milan, Italy
| | | | - Filippo Cogiamanian
- Neurophysiopathology Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Mariarosa Ferrara
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Eva Orunesu
- Nuclear Medicine Department, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Carlo Ferrarese
- School of Medicine and Surgery and Milan Center for Neuroscience, University of Milan-Bicocca, Milan, Italy
- Foundation IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Gianni Pezzoli
- Parkinson Institute, ASST G. Pini-CTO, Milan, Italy
- Fondazione Grigioni per il Morbo di Parkinson, Milan, Italy
| | - Barbara Garavaglia
- Medical Genetics and Neurogenetics Unit, National Neurological Institute Carlo Besta, Milan, Italy
| | - Ioannis Ugo Isaias
- Parkinson Institute, ASST G. Pini-CTO, Milan, Italy
- University Hospital of Würzburg, Würzburg, Germany
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3
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Wang Y, Zhao Y, Pan H, Zeng Q, Zhou X, Xiang Y, Zhou Z, Xu Q, Sun Q, Tan J, Yan X, Li J, Guo J, Tang B, Yu Q, Liu Z. Genetic analysis of dystonia-related genes in Parkinson's disease. Front Aging Neurosci 2023; 15:1207114. [PMID: 37304079 PMCID: PMC10250656 DOI: 10.3389/fnagi.2023.1207114] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 05/08/2023] [Indexed: 06/13/2023] Open
Abstract
Objective Parkinson's disease (PD) and dystonia are two closely related movement disorders with overlaps in clinical phenotype. Variants in several dystonia-related genes were demonstrated to be associated with PD; however, genetic evidence for the involvement of dystonia-related genes in PD has not been fully studied. Here, we comprehensively investigated the association between rare variants in dystonia-related genes and PD in a large Chinese cohort. Methods We comprehensively analyzed the rare variants of 47 known dystonia-related genes by mining the whole-exome sequencing (WES) and whole-genome sequencing (WGS) data from 3,959 PD patients and 2,931 healthy controls. We initially identified potentially pathogenic variants of dystonia-related genes in patients with PD based on different inheritance models. Sequence kernel association tests were conducted in the next step to detect the association between the burden of rare variants and the risk for PD. Results We found that five patients with PD carried potentially pathogenic biallelic variants in recessive dystonia-related genes including COL6A3 and TH. Additionally, we identified 180 deleterious variants in dominant dystonia-related genes based on computational pathogenicity predictions and four of which were considered as potentially pathogenic variants (p.W591X and p.G820S in ANO3, p.R678H in ADCY5, and p.R458Q in SLC2A1). A gene-based burden analysis revealed the increased burden of variant subgroups of TH, SQSTM1, THAP1, and ADCY5 in sporadic early-onset PD, whereas COL6A3 was associated with sporadic late-onset PD. However, none of them reached statistical significance after the Bonferroni correction. Conclusion Our findings indicated that rare variants in several dystonia-related genes are suggestively associated with PD, and taken together, the role of COL6A3 and TH genes in PD is highlighted.
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Affiliation(s)
- Yige Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuwen Zhao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hongxu Pan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qian Zeng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoxia Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yaqin Xiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhou Zhou
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qian Xu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiying Sun
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jieqiong Tan
- Centre for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Xinxiang Yan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jinchen Li
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Centre for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Jifeng Guo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Centre for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, China
| | - Beisha Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Centre for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, China
| | - Qiao Yu
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhenhua Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Centre for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, China
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Esposito M, Trinchillo A, Piceci-Sparascio F, D'Asdia MC, Consoli F, De Luca A. A novel ANO3 variant in two siblings with different phenotypes. Parkinsonism Relat Disord 2023; 111:105413. [PMID: 37116293 DOI: 10.1016/j.parkreldis.2023.105413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/16/2023] [Accepted: 04/22/2023] [Indexed: 04/30/2023]
Abstract
INTRODUCTION Dystonia type 24 is due to the mutation of the ANO3 gene. It generally consists of craniocervical dystonia associated with tremor; however, other neurological manifestations may also occur. Scientific literature has been expanding on its phenotype over the past few years. CASE Here we present two siblings affected by dystonia 24 associated to a novel missense mutation of the ANO3 gene. Description of their phenotype, with regard to motor and non-motor features, may improve the knowledge on DYT 24. Consistent with previous reports, our patients presented with cranio-cervical involvement, and they also exhibited different severity and phenotypes. However non-motor symptoms were present too. CONCLUSION Dystonia 24 spectrum is continuously expanding. This case suggests that the ANO3 missense mutation should be sought in all cases of dystonia and isolated tremor and that non-motor symptoms are an integral part of dystonic syndromes. It also shows that clinical and treatment features may vary from patient to patient, even if they may present the same mutation.
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Affiliation(s)
| | - Assunta Trinchillo
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, "Federico II" University, Naples, Italy.
| | - Francesca Piceci-Sparascio
- Medical Genetics Division, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy; Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Maria Cecilia D'Asdia
- Medical Genetics Division, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Federica Consoli
- Medical Genetics Division, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Alessandro De Luca
- Medical Genetics Division, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
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5
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Aihara Y, Shirota M, Kikuchi A, Katata Y, Abe Y, Niihori T, Funayama R, Nakayama K, Aoki Y, Kure S. A novel variant in the transmembrane 4 domain of ANO3 identified in a two-year-old girl with developmental delay and tremor. J Hum Genet 2023; 68:51-54. [PMID: 36167772 DOI: 10.1038/s10038-022-01082-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 01/13/2023]
Abstract
ANO3 encodes Anoctamin-3, also known as TMEM16C, a calcium-activated chloride channel. Heterozygous variants of ANO3 can cause dystonia 24, an adult-onset focal dystonia. Some pediatric cases have been reported, but most patients were intellectually normal with some exceptions. Here, we report a two-year-old girl who showed mild to moderate developmental delay, tremor, and ataxic gait, but no obvious dystonia. Trio exome sequencing identified a heterozygous de novo missense variant NM_031418.4:c.1809T>G, p.(Asn603Lys) in the ANO3 gene. Three cases with ANO3 variants and intellectual disability have been reported, including the present case. These variants were predicted to face in the same direction on the same alpha-helix (the transmembrane 4 domain), suggesting an association between these variants and childhood-onset movement disorder with intellectual disability. In pediatric cases with developmental delay and movement disorders such as tremor and ataxia, specific variants in the transmembrane 4 domain of ANO3 may be a cause, even in the absence of dystonia.
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Affiliation(s)
- Yu Aihara
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Matsuyuki Shirota
- Division of Interdisciplinary Medical Science, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Atsuo Kikuchi
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Yu Katata
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yu Abe
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tetsuya Niihori
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryo Funayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Keiko Nakayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoko Aoki
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shigeo Kure
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan.,Miyagi Children's Hospital, Sendai, Japan
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6
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Santens P, Bruggeman A, Schuermans N, Verdin H, Dermaut B. Marked hypotonia: An additional feature of ANO3-related movement disorder. Eur J Med Genet 2022; 65:104625. [DOI: 10.1016/j.ejmg.2022.104625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/22/2022] [Accepted: 09/12/2022] [Indexed: 11/03/2022]
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Korkmaz MF, Ekici A, Görükmez O. A Novel Heterozygous ANO3 Mutation in a Child Presenting Tremor with Dystonia and Review of the Literature. JOURNAL OF PEDIATRIC NEUROLOGY 2021. [DOI: 10.1055/s-0041-1740368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractMutations in ANO3 have recently been identified as an autosomal dominant cause of dystonia (dystonia-24). Since then, the phenotypic spectrum has also been extended in children. Here, we reported a case of a 10-year-old Turkish girl child patient with a novel variant (NM_001313726: c.221dupA, p.Tyr74*), who exhibited tremor with mild dystonia. This report expands the phenotype caused by ANO3 variants and reveals an essential clinical aspect for patients and medical staff.
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Affiliation(s)
- Muhammet Furkan Korkmaz
- Department of Pediatrics, University of Health Sciences, Bursa City Training and Research Hospital, Bursa, Turkey
| | - Arzu Ekici
- Department of Pediatric Neurology, University of Health Sciences, Yüksek Ihtisas Training and Research Hospital, Bursa, Turkey
| | - Orhan Görükmez
- Department of Medical Genetics, University of Health Sciences, Yüksek Ihtisas Training and Research Hospital, Bursa, Turkey
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8
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Lange LM, Junker J, Loens S, Baumann H, Olschewski L, Schaake S, Madoev H, Petkovic S, Kuhnke N, Kasten M, Westenberger A, Domingo A, Marras C, König IR, Camargos S, Ozelius LJ, Klein C, Lohmann K. Genotype-Phenotype Relations for Isolated Dystonia Genes: MDSGene Systematic Review. Mov Disord 2021; 36:1086-1103. [PMID: 33502045 DOI: 10.1002/mds.28485] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/24/2020] [Accepted: 12/07/2020] [Indexed: 12/14/2022] Open
Abstract
This comprehensive MDSGene review is devoted to 7 genes - TOR1A, THAP1, GNAL, ANO3, PRKRA, KMT2B, and HPCA - mutations in which may cause isolated dystonia. It followed MDSGene's standardized data extraction protocol and screened a total of ~1200 citations. Phenotypic and genotypic data on ~1200 patients with 254 different mutations were curated and analyzed. There were differences regarding age at onset, site of onset, and distribution of symptoms across mutation carriers in all 7 genes. Although carriers of TOR1A, THAP1, PRKRA, KMT2B, or HPCA mutations mostly showed childhood and adolescent onset, patients with GNAL and ANO3 mutations often developed first symptoms in adulthood. GNAL and KMT2B mutation carriers frequently have 1 predominant site of onset, that is, the neck (GNAL) or the lower limbs (KMT2B), whereas site of onset in DYT-TOR1A, DYT-THAP1, DYT-ANO3, DYT-PRKRA, and DYT-HPCA was broader. However, in most DYT-THAP1 and DYT-ANO3 patients, dystonia first manifested in the upper half of the body (upper limb, neck, and craniofacial/laryngeal), whereas onset in DYT-TOR1A, DYT-PRKRA and DYT-HPCA was frequently observed in an extremity, including both upper and lower ones. For ANO3, a segmental/multifocal distribution was typical, whereas TOR1A, PRKRA, KMT2B, and HPCA mutation carriers commonly developed generalized dystonia. THAP1 mutation carriers presented with focal, segmental/multifocal, or generalized dystonia in almost equal proportions. GNAL mutation carriers rarely showed generalization. This review provides a comprehensive overview of the current knowledge of hereditary isolated dystonia. The data are also available in an online database (http://www.mdsgene.org), which additionally offers descriptive summary statistics. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Lara M Lange
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Johanna Junker
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Sebastian Loens
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Hauke Baumann
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Luisa Olschewski
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Susen Schaake
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Harutyun Madoev
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Sonja Petkovic
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Neele Kuhnke
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Meike Kasten
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
- Department of Psychiatry and Psychotherapy, University of Lübeck, Lübeck, Germany
| | - Ana Westenberger
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Aloysius Domingo
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Connie Marras
- The Morton and Gloria Shulman Movement Disorders Centre and the Edmond J Safra Program in Parkinson's Disease, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Inke R König
- Institute of Medical Biometry and Statistics, University of Lübeck, Lübeck, Germany
| | - Sarah Camargos
- Movement Disorders Unit, Neurology Service, Internal Medicine Department, Hospital das Clínicas, The Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Laurie J Ozelius
- Department of Neurology, Harvard Medical School and Massachusetts General Hospital, Charlestown, Massachusetts, USA
| | - Christine Klein
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Katja Lohmann
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
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9
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Koya Kutty S, Mulroy E, Magrinelli F, Di Lazzaro G, Latorre A, Bhatia KP. Huntington disease-like phenotype in a patient with ANO3 mutation. Parkinsonism Relat Disord 2021; 90:120-122. [PMID: 33640251 DOI: 10.1016/j.parkreldis.2021.02.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 02/08/2021] [Accepted: 02/13/2021] [Indexed: 11/19/2022]
Affiliation(s)
- Shahedah Koya Kutty
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom; Department of Internal Medicine, International Islamic University Malaysia, Pahang, Malaysia.
| | - Eoin Mulroy
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Francesca Magrinelli
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom; Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Giulia Di Lazzaro
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom; Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Anna Latorre
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Kailash P Bhatia
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom.
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10
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The expanding clinical and genetic spectrum of ANO3 dystonia. Neurosci Lett 2020; 746:135590. [PMID: 33388357 DOI: 10.1016/j.neulet.2020.135590] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/14/2020] [Accepted: 12/18/2020] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Dystonia is a movement disorder with high clinical and genetic heterogeneity. Mutations in Anoctamin-3 (ANO3) gene have been reported to cause dystonia 24 (DYT24). This study aims to clarify the spectrum and frequency of ANO3 rare variants in Chinese populations with primary dystonia and understand the clinical and genetic features of DYT24. METHODS Sanger sequencing was used to screen all exons and exon-intron boundaries of ANO3 for rare variants in 115 primary dystonia patients. The clinical manifestations of patients with ANO3 variants in our study and previously reported literatures were further characterized. RESULTS Four distinct variants of ANO3 (c.1127A > G, c.1235 T > A, c.1531-3T > C, c.-11G > T) were identified in six unrelated individuals. Combined with our work and literature review, a total of 35 different rare variants distributed in ANO3 were identified in 62 dystonia patients. The predominant phenotype is cranio-cervical dystonia and more than half of patients develop head/limb tremor. Most of patients presented with isolated dystonia whereas few of them showed combined dystonia. The age of onset ranged from 1 to 69 years and peaked in late adulthood, while for generalized dystonia it peaked in a young age. Half of patients with generalized dystonia experienced deep brain stimulation (DBS). And all of them showed improvement of dystonia by DBS. CONCLUSIONS This study confirms a relatively high frequency of rare ANO3 variants in Chinese patients with dystonia and indicates that the late adulthood-onset, cranio-cervical dystonia seems to be an important feature of the ANO3 phenotype. Further functional studies are warranted to understand the role of ANO3 in dystonia.
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Jiménez de Domingo A, Lopez-Martín S, Albert J, Jiménez de la Peña M, Tirado P, Fernández-Mayoralas DM, Fernández-Perrone AL, Calleja-Pérez B, Martínez-García M, Álvarez S, Fernández-Jaén A. ANO3 and early-onset dyskinetic encephalopathy. Eur J Med Genet 2020; 63:104085. [PMID: 33045406 DOI: 10.1016/j.ejmg.2020.104085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/26/2020] [Accepted: 10/04/2020] [Indexed: 10/23/2022]
Abstract
Mutations in the ANO3 gene have been associated with autosomal dominant craniocervical dystonia. However, little else is known about the genotype-phenotype characteristics of this disorder. Here we describe a 3 years-old girl with distal myoclonic dystonia. Whole exome sequencing in trio revealed a de novo missense ANO3 variant not previously described in international databases. A global psychomotor regression was observed once dystonia was present. Brain MRI changes paralleled these findings: whereas MRI at the age of 18 months was normal, mild brain and cerebellar atrophy was observed 18 months later. These results suggest that missense mutations in ANO3 may underlie complex disorders particularly characterized by early psychomotor regression and dystonia.
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Affiliation(s)
| | - Sara Lopez-Martín
- Faculty of Psychology, Universidad Autónoma de Madrid, Spain; Neuromottiva, Madrid, Spain
| | - Jacobo Albert
- Faculty of Psychology, Universidad Autónoma de Madrid, Spain
| | | | - Pilar Tirado
- Department of Pediatric Neurology. Hospital Universitario La Paz, Madrid, Spain
| | | | | | | | | | - Sara Álvarez
- Genomics and Medicine, NIMGenetics, Madrid, Spain
| | - Alberto Fernández-Jaén
- Department of Pediatric Neurology, Hospital Universitario Quirónsalud, Madrid, Spain; School of Medicine. Universidad Europea de Madrid, Spain.
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Jinnah H, Sun YV. Dystonia genes and their biological pathways. Neurobiol Dis 2019; 129:159-168. [DOI: 10.1016/j.nbd.2019.05.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/05/2019] [Accepted: 05/17/2019] [Indexed: 12/27/2022] Open
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Delamarre A, Chelly J, Guehl D, Drouot N, Tranchant C, Anheim M, Burbaud P. Novel anoctamin-3 missense mutation responsible for early-onset myoclonic dystonia. Parkinsonism Relat Disord 2019; 64:346-348. [DOI: 10.1016/j.parkreldis.2019.04.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/15/2019] [Accepted: 04/25/2019] [Indexed: 01/07/2023]
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Olschewski L, Jesús S, Kim HJ, Tunc S, Löns S, Junker J, Zeuner KE, Kühn AA, Kuhlenbäumer G, Schäffer E, Berg D, Kasten M, Ferbert A, Altenmüller E, Brüggemann N, Bauer P, Rolfs A, Jeon B, Bäumer T, Mir P, Klein C, Lohmann K. Role of ANO3 mutations in dystonia: A large-scale mutational screening study. Parkinsonism Relat Disord 2019; 62:196-200. [DOI: 10.1016/j.parkreldis.2018.12.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/29/2018] [Accepted: 12/31/2018] [Indexed: 11/26/2022]
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