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Desjardins C, Delorme C, Méneret A, Flamand C, Leveque N, De Sainte Agathe JM, Roze E, Vidailhet M. A Novel Pattern of Dystonia in DYT- VPS16: "Speaking in Tongues". Neurol Genet 2024; 10:e200154. [PMID: 39040918 PMCID: PMC11262712 DOI: 10.1212/nxg.0000000000200154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 03/18/2024] [Indexed: 07/24/2024]
Abstract
Objectives To expand the phenotype and genotype of VPS16-related dystonia (DYT-VPS16). Methods We report 2 patients with previously unreported VPS16 truncating variants and highlight some distinctive phenomenological characteristics of DYT-VPS16. Results The 2 patients, who were unrelated, presented with early-onset orofacial dystonia with prominent tongue involvement. Case 1, a 37-year-old woman, developed disabling orofacial dystonia, with tongue protrusion (lingual dystonia), orofacial gesticulations, and hyperkinetic dysarthria, responsible for an odd "foreign language" quality. Case 2, a 36-year-old woman, exhibited orofacial dystonia with prominent lingual involvement and orofacial gesticulations. In both patients, orofacial dystonia led to predominant speech impairment with no or discrete swallowing difficulties. Discussion Substantial tongue dystonia may be a distinctive feature of DYT-VPS16. Our cases widen the phenotypic spectrum of DYT-VPS16 and may provide physicians with a new clinical clue for this disease.
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Affiliation(s)
- Clément Desjardins
- From the AP-HP (C. Desjardins, Cécile Delorme, A.M., N.L., E.R., M.V.), Salpetriere Hospital; Sorbonne Université (C. Delorme, A.M., E.R., M.V.), Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, AP-HP, Hôpital Salpetriere, DMU Neuroscience 6, Paris; Service de neurologie (C.F.), Centre Hospitalier du Sud Francilien, Corbeil Essonnes; Laboratoire de Phonétique et Phonologie (CNRS/University Sorbonne-Nouvelle) Paris (N.L.); Department of Medical Genetics (J.-M.D.S.A.), Groupe Hospitalo-Universitaire Pitié-Salpêtrière, AP-HP.Sorbonne Université, Paris, France; and Laboratoire de Médecine Génomique Sorbonne Université (J.-M.D.S.A.), Groupement de Coopération Sanitaire SeqOIA
| | - Cécile Delorme
- From the AP-HP (C. Desjardins, Cécile Delorme, A.M., N.L., E.R., M.V.), Salpetriere Hospital; Sorbonne Université (C. Delorme, A.M., E.R., M.V.), Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, AP-HP, Hôpital Salpetriere, DMU Neuroscience 6, Paris; Service de neurologie (C.F.), Centre Hospitalier du Sud Francilien, Corbeil Essonnes; Laboratoire de Phonétique et Phonologie (CNRS/University Sorbonne-Nouvelle) Paris (N.L.); Department of Medical Genetics (J.-M.D.S.A.), Groupe Hospitalo-Universitaire Pitié-Salpêtrière, AP-HP.Sorbonne Université, Paris, France; and Laboratoire de Médecine Génomique Sorbonne Université (J.-M.D.S.A.), Groupement de Coopération Sanitaire SeqOIA
| | - Aurélie Méneret
- From the AP-HP (C. Desjardins, Cécile Delorme, A.M., N.L., E.R., M.V.), Salpetriere Hospital; Sorbonne Université (C. Delorme, A.M., E.R., M.V.), Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, AP-HP, Hôpital Salpetriere, DMU Neuroscience 6, Paris; Service de neurologie (C.F.), Centre Hospitalier du Sud Francilien, Corbeil Essonnes; Laboratoire de Phonétique et Phonologie (CNRS/University Sorbonne-Nouvelle) Paris (N.L.); Department of Medical Genetics (J.-M.D.S.A.), Groupe Hospitalo-Universitaire Pitié-Salpêtrière, AP-HP.Sorbonne Université, Paris, France; and Laboratoire de Médecine Génomique Sorbonne Université (J.-M.D.S.A.), Groupement de Coopération Sanitaire SeqOIA
| | - Constance Flamand
- From the AP-HP (C. Desjardins, Cécile Delorme, A.M., N.L., E.R., M.V.), Salpetriere Hospital; Sorbonne Université (C. Delorme, A.M., E.R., M.V.), Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, AP-HP, Hôpital Salpetriere, DMU Neuroscience 6, Paris; Service de neurologie (C.F.), Centre Hospitalier du Sud Francilien, Corbeil Essonnes; Laboratoire de Phonétique et Phonologie (CNRS/University Sorbonne-Nouvelle) Paris (N.L.); Department of Medical Genetics (J.-M.D.S.A.), Groupe Hospitalo-Universitaire Pitié-Salpêtrière, AP-HP.Sorbonne Université, Paris, France; and Laboratoire de Médecine Génomique Sorbonne Université (J.-M.D.S.A.), Groupement de Coopération Sanitaire SeqOIA
| | - Nathalie Leveque
- From the AP-HP (C. Desjardins, Cécile Delorme, A.M., N.L., E.R., M.V.), Salpetriere Hospital; Sorbonne Université (C. Delorme, A.M., E.R., M.V.), Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, AP-HP, Hôpital Salpetriere, DMU Neuroscience 6, Paris; Service de neurologie (C.F.), Centre Hospitalier du Sud Francilien, Corbeil Essonnes; Laboratoire de Phonétique et Phonologie (CNRS/University Sorbonne-Nouvelle) Paris (N.L.); Department of Medical Genetics (J.-M.D.S.A.), Groupe Hospitalo-Universitaire Pitié-Salpêtrière, AP-HP.Sorbonne Université, Paris, France; and Laboratoire de Médecine Génomique Sorbonne Université (J.-M.D.S.A.), Groupement de Coopération Sanitaire SeqOIA
| | - Jean-Madeleine De Sainte Agathe
- From the AP-HP (C. Desjardins, Cécile Delorme, A.M., N.L., E.R., M.V.), Salpetriere Hospital; Sorbonne Université (C. Delorme, A.M., E.R., M.V.), Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, AP-HP, Hôpital Salpetriere, DMU Neuroscience 6, Paris; Service de neurologie (C.F.), Centre Hospitalier du Sud Francilien, Corbeil Essonnes; Laboratoire de Phonétique et Phonologie (CNRS/University Sorbonne-Nouvelle) Paris (N.L.); Department of Medical Genetics (J.-M.D.S.A.), Groupe Hospitalo-Universitaire Pitié-Salpêtrière, AP-HP.Sorbonne Université, Paris, France; and Laboratoire de Médecine Génomique Sorbonne Université (J.-M.D.S.A.), Groupement de Coopération Sanitaire SeqOIA
| | - Emmanuel Roze
- From the AP-HP (C. Desjardins, Cécile Delorme, A.M., N.L., E.R., M.V.), Salpetriere Hospital; Sorbonne Université (C. Delorme, A.M., E.R., M.V.), Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, AP-HP, Hôpital Salpetriere, DMU Neuroscience 6, Paris; Service de neurologie (C.F.), Centre Hospitalier du Sud Francilien, Corbeil Essonnes; Laboratoire de Phonétique et Phonologie (CNRS/University Sorbonne-Nouvelle) Paris (N.L.); Department of Medical Genetics (J.-M.D.S.A.), Groupe Hospitalo-Universitaire Pitié-Salpêtrière, AP-HP.Sorbonne Université, Paris, France; and Laboratoire de Médecine Génomique Sorbonne Université (J.-M.D.S.A.), Groupement de Coopération Sanitaire SeqOIA
| | - Marie Vidailhet
- From the AP-HP (C. Desjardins, Cécile Delorme, A.M., N.L., E.R., M.V.), Salpetriere Hospital; Sorbonne Université (C. Delorme, A.M., E.R., M.V.), Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, AP-HP, Hôpital Salpetriere, DMU Neuroscience 6, Paris; Service de neurologie (C.F.), Centre Hospitalier du Sud Francilien, Corbeil Essonnes; Laboratoire de Phonétique et Phonologie (CNRS/University Sorbonne-Nouvelle) Paris (N.L.); Department of Medical Genetics (J.-M.D.S.A.), Groupe Hospitalo-Universitaire Pitié-Salpêtrière, AP-HP.Sorbonne Université, Paris, France; and Laboratoire de Médecine Génomique Sorbonne Université (J.-M.D.S.A.), Groupement de Coopération Sanitaire SeqOIA
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Monfrini E, Avanzino L, Palermo G, Bonato G, Brescia G, Ceravolo R, Cantarella G, Mandich P, Prokisch H, Storm van's Gravesande K, Straccia G, Elia A, Reale C, Panteghini C, Zorzi G, Eleopra R, Erro R, Carecchio M, Garavaglia B, Zech M, Romito L, Di Fonzo A. Dominant VPS16 Pathogenic Variants: Not Only Isolated Dystonia. Mov Disord Clin Pract 2024; 11:87-93. [PMID: 38291845 PMCID: PMC10828607 DOI: 10.1002/mdc3.13927] [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: 08/19/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND VPS16 pathogenic variants have been recently associated with inherited dystonia. Most patients affected by dominant VPS16-related disease display early-onset isolated dystonia with prominent oromandibular, bulbar, cervical, and upper limb involvement, followed by slowly progressive generalization. CASES We describe six newly reported dystonic patients carrying VPS16 mutations displaying unusual phenotypic features in addition to dystonia, such as myoclonus, choreoathetosis, pharyngospasm and freezing of gait. Response to bilateral Globus Pallidus Internus Deep Brain Stimulation (GPi-DBS) is reported in three of them, associated with significant improvement of dystonia but only minor effect on other hyperkinetic movements. Moreover, five novel pathogenic/likely pathogenic variants are described. CONCLUSIONS This case collection expands the genetic and clinical spectrum of VPS16-related disease, prompting movement disorder specialists to suspect mutations of this gene not only in patients with isolated dystonia.
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Affiliation(s)
- Edoardo Monfrini
- Dino Ferrari Center, Neuroscience Section, Department of Pathophysiology and TransplantationUniversity of MilanMilanItaly
- Foundation IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoNeurology UnitMilanItaly
| | - Laura Avanzino
- Department of Experimental Medicine, Section of Human Physiology and Centro Polifunzionale di Scienze MotorieUniversity of GenoaGenoaItaly
- IRCCS Ospedale Policlinico San MartinoGenoaItaly
| | - Giovanni Palermo
- Center for Neurodegenerative Diseases, Parkinson's Disease and Movement Disorders, Unit of Neurology, Department of Clinical and Experimental MedicineUniversity of PisaPisaItaly
| | - Giulia Bonato
- Parkinson and Movement Disorders Unit, Centre for Rare Neurological Diseases (ERN‐RND), Department of Neuroscience University of PaduaPaduaItaly
| | - Gloria Brescia
- Dino Ferrari Center, Neuroscience Section, Department of Pathophysiology and TransplantationUniversity of MilanMilanItaly
- Medical Genetics LaboratoryFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Roberto Ceravolo
- Center for Neurodegenerative Diseases, Parkinson's Disease and Movement Disorders, Unit of Neurology, Department of Clinical and Experimental MedicineUniversity of PisaPisaItaly
| | - Giovanna Cantarella
- Department of Clinical Sciences and Community HealthUniversity of MilanMilanItaly
- Department of OtolaryngologyFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Paola Mandich
- IRCCS Ospedale Policlinico San MartinoGenoaItaly
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal, and Child HealthUniversity of GenoaGenoaItaly
| | - Holger Prokisch
- Institute of Neurogenomics, Helmholtz MunichNeuherbergGermany
- Institute of Human Genetics, Technical University of Munich, School of MedicineMunichGermany
| | - Karin Storm van's Gravesande
- Department of Pediatrics, Child and Adolescent PsychosomaticsTechnical University MunichMunichGermany
- Department of Pediatric NeurologyUniversity Children's Hospital FreiburgFreiburgGermany
| | - Giulia Straccia
- Department of Clinical Neurosciences, Parkinson and Movement Disorders UnitFondazione IRCCS Istituto Neurologico Carlo BestaMilanItaly
| | - Antonio Elia
- Department of Clinical Neurosciences, Parkinson and Movement Disorders UnitFondazione IRCCS Istituto Neurologico Carlo BestaMilanItaly
| | - Chiara Reale
- Medical Genetics and Neurogenetics UnitFondazione IRCCS Istituto Neurologico Carlo BestaMilanItaly
| | - Celeste Panteghini
- Medical Genetics and Neurogenetics UnitFondazione IRCCS Istituto Neurologico Carlo BestaMilanItaly
| | - Giovanna Zorzi
- Department of Pediatric NeuroscienceFondazione IRCCS Istituto Neurologico Carlo BestaMilanItaly
| | - Roberto Eleopra
- Department of Clinical Neurosciences, Parkinson and Movement Disorders UnitFondazione IRCCS Istituto Neurologico Carlo BestaMilanItaly
| | - Roberto Erro
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana,” Neuroscience SectionUniversity of SalernoSalernoItaly
| | - Miryam Carecchio
- Center for Neurodegenerative Diseases, Parkinson's Disease and Movement Disorders, Unit of Neurology, Department of Clinical and Experimental MedicineUniversity of PisaPisaItaly
| | - Barbara Garavaglia
- Medical Genetics and Neurogenetics UnitFondazione IRCCS Istituto Neurologico Carlo BestaMilanItaly
| | - Michael Zech
- Institute of Neurogenomics, Helmholtz MunichNeuherbergGermany
- Institute of Human Genetics, Technical University of Munich, School of MedicineMunichGermany
- Institute for Advanced Study, Technical University of MunichGarchingGermany
| | - Luigi Romito
- Department of Clinical Neurosciences, Parkinson and Movement Disorders UnitFondazione IRCCS Istituto Neurologico Carlo BestaMilanItaly
| | - Alessio Di Fonzo
- Foundation IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoNeurology UnitMilanItaly
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Vimercati A, Tannorella P, Orlandini E, Calzari L, Moro M, Guzzetti S, Selicorni A, Crippa M, Larizza L, Bonati MT, Russo S. Case report: atypical Silver-Russell syndrome patient with hand dystonia: the valuable support of the consensus statement to the wide syndromic spectrum. Front Genet 2023; 14:1198821. [PMID: 37529781 PMCID: PMC10387531 DOI: 10.3389/fgene.2023.1198821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/19/2023] [Indexed: 08/03/2023] Open
Abstract
The amount of Insulin Growth Factor 2 (IGF2) controls the rate of embryonal and postnatal growth. The IGF2 and adjacent H19 are the imprinted genes of the telomeric cluster in the 11p15 chromosomal region regulated by differentially methylated regions (DMRs) or imprinting centers (ICs): H19/IGF2:IG-DMR (IC1). Dysregulation due to IC1 Loss-of-Methylation (LoM) or Gain-of-Methyaltion (GoM) causes Silver-Russell syndrome (SRS) or Beckwith-Wiedemann syndrome (BWS) disorders associated with growth retardation or overgrowth, respectively. Specific features define each of the two syndromes, but isolated asymmetry is a common cardinal feature, which is considered sufficient for a diagnosis in the BWS spectrum. Here, we report the case of a girl with right body asymmetry, which suggested BWS spectrum. Later, BWS/SRS molecular analysis identified IC1_LoM revealing the discrepant diagnosis of SRS. A clinical re-evaluation identified a relative macrocephaly and previously unidentified growth rate at lower limits of normal at birth, feeding difficulties, and asymmetry. Interestingly, and never previously described in IC1_LoM SRS patients, since the age of 16, she has developed hand-writer's cramps, depression, and bipolar disorder. Trio-WES identified a VPS16 heterozygous variant [NM_022575.4:c.2185C>G:p.Leu729Val] inherited from her healthy mother. VPS16 is involved in the endolysosomal system, and its dysregulation is linked to autosomal dominant dystonia with incomplete penetrance and variable expressivity. IGF2 involvement in the lysosomal pathway led us to speculate that the neurological phenotype of the proband might be triggered by the concurrent IGF2 deficit and VPS16 alteration.
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Affiliation(s)
- Alessandro Vimercati
- Research Laboratory of Medical Cytogenetics and Molecular Genetics, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Pierpaola Tannorella
- Research Laboratory of Medical Cytogenetics and Molecular Genetics, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Eleonora Orlandini
- Specialty School of Pediatrics, Alma Mater University of Bologna, Bologna, Italy
| | - Luciano Calzari
- Bioinformatics and Statistical Genomics Unit, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Mirella Moro
- Department of Endocrine and Metabolic Diseases and Lab of Endocrine and Metabolic Research, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Sara Guzzetti
- Research Laboratory of Medical Cytogenetics and Molecular Genetics, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | | | - Milena Crippa
- Research Laboratory of Medical Cytogenetics and Molecular Genetics, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Lidia Larizza
- Research Laboratory of Medical Cytogenetics and Molecular Genetics, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Maria Teresa Bonati
- Unit of Medical Genetics, Institute for Maternal and Child Health Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Burlo Garofalo, Trieste, Italy
| | - Silvia Russo
- Research Laboratory of Medical Cytogenetics and Molecular Genetics, IRCCS Istituto Auxologico Italiano, Milano, Italy
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