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Cheung A, Audhya IF, Szabo SM, Friesen M, Weihl CC, Gooch KL. Patterns of Clinical Progression Among Patients With Autosomal Recessive Limb-Girdle Muscular Dystrophy: A Systematic Review. J Clin Neuromuscul Dis 2023; 25:65-80. [PMID: 37962193 DOI: 10.1097/cnd.0000000000000461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
OBJECTIVES As the clinical course of autosomal recessive limb-girdle muscular dystrophy (LGMDR) is highly variable, this study characterized the frequency of loss of ambulation (LOA) among patients by subtype (LGMDR1, LGMDR2, LGMDR3-6, LGMDR9, LGMDR12) and progression to cardiac and respiratory involvement among those with and without LOA. METHODS Systematic literature review. RESULTS From 2929 abstracts screened, 418 patients were identified with ambulatory status data (LOA: 265 [63.4%]). Cardiac and/or respiratory function was reported for 142 patients (34.0%; all with LOA). Among these, respiratory involvement was most frequent in LGMDR3-6 (74.1%; mean [SD] age 23.9 [11.0] years) and cardiac in LGMDR9 (73.3%; mean [SD] age 23.7 [17.7] years). Involvement was less common in patients without LOA except in LGMDR9 (71.4% respiratory and 52.4% cardiac). CONCLUSIONS This study described the co-occurrence of LOA, cardiac, and respiratory involvement in LGMDR and provides greater understanding of the clinical progression of LGMDR.
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Affiliation(s)
| | | | | | | | - Conrad C Weihl
- Department of Neurology, Hope Center for Neurological Diseases, Washington University School of Medicine, St. Louis, MO
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2
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de Bruyn A, Montagnese F, Holm-Yildiz S, Scharff Poulsen N, Stojkovic T, Behin A, Palmio J, Jokela M, De Bleecker JL, de Visser M, van der Kooi AJ, Ten Dam L, Domínguez González C, Maggi L, Gallone A, Kostera-Pruszczyk A, Macias A, Łusakowska A, Nedkova V, Olive M, Álvarez-Velasco R, Wanschitz J, Paradas C, Mavillard F, Querin G, Fernández-Eulate G, Quinlivan R, Walter MC, Depuydt CE, Udd B, Vissing J, Schoser B, Claeys KG. Anoctamin-5 related muscle disease: clinical and genetic findings in a large European cohort. Brain 2023; 146:3800-3815. [PMID: 36913258 DOI: 10.1093/brain/awad088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 02/06/2023] [Accepted: 02/25/2023] [Indexed: 03/14/2023] Open
Abstract
Anoctamin-5 related muscle disease is caused by biallelic pathogenic variants in the anoctamin-5 gene (ANO5) and shows variable clinical phenotypes: limb-girdle muscular dystrophy type 12 (LGMD-R12), distal muscular dystrophy type 3 (MMD3), pseudometabolic myopathy or asymptomatic hyperCKaemia. In this retrospective, observational, multicentre study we gathered a large European cohort of patients with ANO5-related muscle disease to study the clinical and genetic spectrum and genotype-phenotype correlations. We included 234 patients from 212 different families, contributed by 15 centres from 11 European countries. The largest subgroup was LGMD-R12 (52.6%), followed by pseudometabolic myopathy (20.5%), asymptomatic hyperCKaemia (13.7%) and MMD3 (13.2%). In all subgroups, there was a male predominance, except for pseudometabolic myopathy. Median age at symptom onset of all patients was 33 years (range 23-45 years). The most frequent symptoms at onset were myalgia (35.3%) and exercise intolerance (34.1%), while at last clinical evaluation most frequent symptoms and signs were proximal lower limb weakness (56.9%) and atrophy (38.1%), myalgia (45.1%) and atrophy of the medial gastrocnemius muscle (38.4%). Most patients remained ambulatory (79.4%). At last evaluation, 45.9% of patients with LGMD-R12 additionally had distal weakness in the lower limbs and 48.4% of patients with MMD3 also showed proximal lower limb weakness. Age at symptom onset did not differ significantly between males and females. However, males had a higher risk of using walking aids earlier (P = 0.035). No significant association was identified between sportive versus non-sportive lifestyle before symptom onset and age at symptom onset nor any of the motor outcomes. Cardiac and respiratory involvement that would require treatment occurred very rarely. Ninety-nine different pathogenic variants were identified in ANO5 of which 25 were novel. The most frequent variants were c.191dupA (p.Asn64Lysfs*15) (57.7%) and c.2272C>T (p.Arg758Cys) (11.1%). Patients with two loss-of function variants used walking aids at a significantly earlier age (P = 0.037). Patients homozygous for the c.2272C>T variant showed a later use of walking aids compared to patients with other variants (P = 0.043). We conclude that there was no correlation of the clinical phenotype with the specific genetic variants, and that LGMD-R12 and MMD3 predominantly affect males who have a significantly worse motor outcome. Our study provides useful information for clinical follow up of the patients and for the design of clinical trials with novel therapeutic agents.
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Affiliation(s)
- Alexander de Bruyn
- Department of Neurology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Federica Montagnese
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, 80336 Munich, Germany
| | - Sonja Holm-Yildiz
- Copenhagen Neuromuscular Center (CNMC), Rigshospitalet, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Nanna Scharff Poulsen
- Copenhagen Neuromuscular Center (CNMC), Rigshospitalet, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Tanya Stojkovic
- Reference Center for Neuromuscular Disorders Nord/Est/Île-de-France, Sorbonne Université, AP-HP, Hôpital Pitié-Salpêtrière, 75013 Paris, France
| | - Anthony Behin
- Reference Center for Neuromuscular Disorders Nord/Est/Île-de-France, Sorbonne Université, AP-HP, Hôpital Pitié-Salpêtrière, 75013 Paris, France
| | - Johanna Palmio
- Neuromuscular Center, Department of Neurology, Tampere University Hospital, 33520 Tampere, Finland
| | - Manu Jokela
- Neuromuscular Center, Department of Neurology, Tampere University Hospital, 33520 Tampere, Finland
- Neurocenter, Department of Neurology, Clinical Neurosciences, Turku University Hospital and University of Turku, 20014 Turku, Finland
| | - Jan L De Bleecker
- Department of Neurology, University Hospital Gent, 9000 Gent, Belgium
| | - Marianne de Visser
- Department of Neurology, Amsterdam University Medical Centers, Location AMC, Neuroscience Institute, University of Amsterdam, 1107 AZ Amsterdam, The Netherlands
| | - Anneke J van der Kooi
- Department of Neurology, Amsterdam University Medical Centers, Location AMC, Neuroscience Institute, University of Amsterdam, 1107 AZ Amsterdam, The Netherlands
| | - Leroy Ten Dam
- Department of Neurology, Amsterdam University Medical Centers, Location AMC, Neuroscience Institute, University of Amsterdam, 1107 AZ Amsterdam, The Netherlands
| | - Cristina Domínguez González
- Reference Center for Rare Neuromuscular Disorders, imas12 Research Institute, Hospital Universitario 12 de Octubre, Biomedical Network Research Center on Rare Diseases (CIBERER), Instituto de Salud Carlos III, 28041 Madrid, Spain
| | - Lorenzo Maggi
- Neuroimmunology and Neuromuscular Diseases Unit, Fondazione IRCCS Istituto Neurologico "Carlo Besta", 20133 Milan, Italy
| | - Annamaria Gallone
- Neuroimmunology and Neuromuscular Diseases Unit, Fondazione IRCCS Istituto Neurologico "Carlo Besta", 20133 Milan, Italy
| | | | - Anna Macias
- Department of Neurology, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Anna Łusakowska
- Department of Neurology, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Velina Nedkova
- Department of Neurology, Bellvitge Hospital, 08041 Barcelona, Spain
| | - Montse Olive
- Neuromuscular Disorders Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau and Biomedical Research Institute Sant Pau (IIB Sat Pau), 08041 Barcelona, Spain
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, 28001 Madrid, Spain
| | - Rodrigo Álvarez-Velasco
- Neuromuscular Disorders Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau and Biomedical Research Institute Sant Pau (IIB Sat Pau), 08041 Barcelona, Spain
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, 28001 Madrid, Spain
| | - Julia Wanschitz
- Department of Neurology, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Carmen Paradas
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, 41013 Sevilla, Spain
- Centro Investigacion Biomedica en Red Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 41013 Sevilla, Spain
| | - Fabiola Mavillard
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, 41013 Sevilla, Spain
- Centro Investigacion Biomedica en Red Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 41013 Sevilla, Spain
| | - Giorgia Querin
- Institut de Myologie, I-Motion Adult ClinicalTrials Platform, Hôpital Pitié-Salpêtrière, 75013 Paris, France
| | - Gorka Fernández-Eulate
- Reference Center for Neuromuscular Disorders Nord/Est/Île-de-France, Sorbonne Université, AP-HP, Hôpital Pitié-Salpêtrière, 75013 Paris, France
| | - Ros Quinlivan
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, WC1N 3BG London, UK
| | - Maggie C Walter
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, 80336 Munich, Germany
| | - Christophe E Depuydt
- Laboratory for Muscle Diseases and Neuropathies, Department of Neurosciences, KU Leuven, and Leuven Brain Institute (LBI), 3000 Leuven, Belgium
| | - Bjarne Udd
- Neuromuscular Center, Department of Neurology, Tampere University Hospital, 33520 Tampere, Finland
| | - John Vissing
- Copenhagen Neuromuscular Center (CNMC), Rigshospitalet, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Benedikt Schoser
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, 80336 Munich, Germany
| | - Kristl G Claeys
- Department of Neurology, University Hospitals Leuven, 3000 Leuven, Belgium
- Laboratory for Muscle Diseases and Neuropathies, Department of Neurosciences, KU Leuven, and Leuven Brain Institute (LBI), 3000 Leuven, Belgium
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Blagova O, Lutokhina Y, Vukolova M, Pirozhkov S, Sarkisova N, Ainetdinova D, Das A, Krot M, Smolyannikova V, Litvitsky P, Zaklyazminskaya E, Kogan E. Hypertrophic Cardiomyopathy Complicated by Post-COVID-19 Myopericarditis in Patient with ANO5-Related Distal Myopathy. Genes (Basel) 2023; 14:1332. [PMID: 37510237 PMCID: PMC10378865 DOI: 10.3390/genes14071332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
A 60-year-old male with hypertrophic cardiomyopathy, conduction disorders, post-COVID-19 myopericarditis and heart failure was admitted to the hospital's cardiology department. Blood tests revealed an increase in CPK activity, troponin T elevation and high titers of anticardiac antibodies. Whole exome sequencing showed the presence of the pathogenic variant NM_213599:c.2272C>T of the ANO5 gene. Results of the skeletal muscle biopsy excluded the diagnosis of systemic amyloidosis. Microscopy of the muscle fragment demonstrated sclerosis of the perimysium, moderate lymphoid infiltration, sclerosis of the microvessels, dystrophic changes and a lack of cross striations in the muscle fibers. Hypertrophy of the LV with a low contractile ability, atrial fibrillation, weakness of the distal skeletal muscles and increased plasma CPK activity and the results of the skeletal muscle biopsy suggested a diagnosis of a late form of distal myopathy (Miyoshi-like distal myopathy, MMD3). Post-COVID-19 myopericarditis, for which genetically modified myocardium could serve as a favorable background, caused heart failure decompensation.
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Affiliation(s)
- Olga Blagova
- V.N. Vinogradov Faculty Therapeutic Clinic, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (O.B.); (N.S.); (D.A.)
| | - Yulia Lutokhina
- V.N. Vinogradov Faculty Therapeutic Clinic, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (O.B.); (N.S.); (D.A.)
| | - Marina Vukolova
- Department of Pathophysiology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.V.); (S.P.); (P.L.)
| | - Sergey Pirozhkov
- Department of Pathophysiology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.V.); (S.P.); (P.L.)
| | - Natalia Sarkisova
- V.N. Vinogradov Faculty Therapeutic Clinic, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (O.B.); (N.S.); (D.A.)
| | - Dilara Ainetdinova
- V.N. Vinogradov Faculty Therapeutic Clinic, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (O.B.); (N.S.); (D.A.)
| | - Anushree Das
- N.V. Sklifosovsky Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia;
| | - Marina Krot
- Institute of Clinical Morphology and Digital Pathology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.K.); (V.S.); (E.K.)
| | - Vera Smolyannikova
- Institute of Clinical Morphology and Digital Pathology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.K.); (V.S.); (E.K.)
| | - Petr Litvitsky
- Department of Pathophysiology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.V.); (S.P.); (P.L.)
| | - Elena Zaklyazminskaya
- Laboratory of Medical Genetics, B.V. Petrovsky Russian Research Center of Surgery, 119991 Moscow, Russia;
- N.P. Bochkov Research Centre for Medical Genetics, 119991 Moscow, Russia
| | - Evgeniya Kogan
- Institute of Clinical Morphology and Digital Pathology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.K.); (V.S.); (E.K.)
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Savarese M, Jokela M, Udd B. Distal myopathy. HANDBOOK OF CLINICAL NEUROLOGY 2023; 195:497-519. [PMID: 37562883 DOI: 10.1016/b978-0-323-98818-6.00002-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Distal myopathies are a group of genetic, primary muscle diseases. Patients develop progressive weakness and atrophy of the muscles of forearm, hands, lower leg, or feet. Currently, over 20 different forms, presenting a variable age of onset, clinical presentation, disease progression, muscle involvement, and histological findings, are known. Some of them are dominant and some recessive. Different variants in the same gene are often associated with either dominant or recessive forms, although there is a lack of a comprehensive understanding of the genotype-phenotype correlations. This chapter provides a description of the clinicopathologic and genetic aspects of distal myopathies emphasizing known etiologic and pathophysiologic mechanisms.
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Affiliation(s)
- Marco Savarese
- Folkhälsan Research Center, Helsinki, Finland; Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
| | - Manu Jokela
- Neuromuscular Research Center, Department of Neurology, Tampere University and University Hospital, Tampere, Finland; Division of Clinical Neurosciences, Department of Neurology, Turku University Hospital, Turku, Finland
| | - Bjarne Udd
- Folkhälsan Research Center, Helsinki, Finland; Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland; Neuromuscular Research Center, Department of Neurology, Tampere University and University Hospital, Tampere, Finland; Department of Neurology, Vaasa Central Hospital, Vaasa, Finland.
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5
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Soontrapa P, Liewluck T. Anoctamin 5 (ANO5) Muscle Disorders: A Narrative Review. Genes (Basel) 2022; 13:genes13101736. [PMID: 36292621 PMCID: PMC9602132 DOI: 10.3390/genes13101736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/16/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
Anoctaminopathy-5 refers to a group of hereditary skeletal muscle or bone disorders due to mutations in the anoctamin 5 (ANO5)-encoding gene, ANO5. ANO5 is a 913-amino acid protein of the anoctamin family that functions predominantly in phospholipid scrambling and plays a key role in the sarcolemmal repairing process. Monoallelic mutations in ANO5 give rise to an autosomal dominant skeletal dysplastic syndrome (gnathodiaphyseal dysplasia or GDD), while its biallelic mutations underlie a continuum of four autosomal recessive muscle phenotypes: (1). limb–girdle muscular dystrophy type R12 (LGMDR12); (2). Miyoshi distal myopathy type 3 (MMD3); (3). metabolic myopathy-like (pseudometabolic) phenotype; (4). asymptomatic hyperCKemia. ANO5 muscle disorders are rare, but their prevalence is relatively high in northern European populations because of the founder mutation c.191dupA. Weakness is generally asymmetric and begins in proximal muscles in LGMDR12 and in distal muscles in MMD3. Patients with the pseudometabolic or asymptomatic hyperCKemia phenotype have no weakness, but conversion to the LGMDR12 or MMD3 phenotype may occur as the disease progresses. There is no clear genotype–phenotype correlation. Muscle biopsy displays a broad spectrum of pathology, ranging from normal to severe dystrophic changes. Intramuscular interstitial amyloid deposits are observed in approximately half of the patients. Symptomatic and supportive strategies remain the mainstay of treatment. The recent development of animal models of ANO5 muscle diseases could help achieve a better understanding of their underlying pathomechanisms and provide an invaluable resource for therapeutic discovery.
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Affiliation(s)
- Pannathat Soontrapa
- Division of Neuromuscular Medicine, Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
- Division of Neurology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Teerin Liewluck
- Division of Neuromuscular Medicine, Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
- Correspondence:
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Audhya IF, Cheung A, Szabo SM, Flint E, Weihl CC, Gooch KL. Progression to Loss of Ambulation Among Patients with Autosomal Recessive Limb-girdle Muscular Dystrophy: A Systematic Review. J Neuromuscul Dis 2022; 9:477-492. [PMID: 35527561 PMCID: PMC9398075 DOI: 10.3233/jnd-210771] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background The impact of age at autosomal recessive limb girdle muscular dystrophy (LGMDR) onset on progression to loss of ambulation (LOA) has not been well established, particularly by subtype. Objectives: To describe the characteristics of patients with adult-, late childhood-, and early childhood-onset LGMDR by subtype and characterize the frequency and timing of LOA. Methods: A systematic review was conducted in MEDLINE, Embase and the Cochrane library. Frequency and timing of LOA in patients with LGMDR1, LGMDR2/Miyoshi myopathy (MM), LGMDR3-6, LGMDR9, and LGMDR12 were synthesized from published data. Results: In 195 studies, 695 (43.4%) patients had adult-, 532 (33.2%) had late childhood-, and 376 (23.5%) had early childhood-onset of disease across subtypes among those with a reported age at onset (n = 1,603); distribution of age at onset varied between subtypes. Among patients with LOA (n = 228), adult-onset disease was uncommon in LGMDR3-6 (14%) and frequent in LGMDR2/MM (42%); LGMDR3-6 cases with LOA primarily had early childhood-onset (74%). Mean (standard deviation [SD]) time to LOA varied between subtypes and was shortest for patients with early childhood-onset LGMDR9 (12.0 [4.9] years, n = 19) and LGMDR3-6 (12.3 [10.7], n = 56) and longest for those with late childhood-onset LGMDR2/MM (21.4 [11.5], n = 36). Conclusions: This review illustrated that patients with early childhood-onset disease tend to have faster progression to LOA than those with late childhood- or adult-onset disease, particularly in LGMDR9. These findings provide a greater understanding of progression to LOA by LGMDR subtype, which may help inform clinical trial design and provide a basis for natural history studies.
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Affiliation(s)
| | | | | | - Emma Flint
- Broadstreet HEOR, Vancouver, BC, V6A 1A4 Canada
| | - Conrad C Weihl
- Washington University School of Medicine, St.Louis, MO, USA
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Foltz S, Wu F, Ghazal N, Kwong JQ, Hartzell HC, Choo HJ. Sex differences in the involvement of skeletal and cardiac muscles in myopathic Ano5-/- mice. Am J Physiol Cell Physiol 2022; 322:C283-C295. [PMID: 35020501 PMCID: PMC8836717 DOI: 10.1152/ajpcell.00350.2021] [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: 09/22/2021] [Revised: 12/14/2021] [Accepted: 01/07/2022] [Indexed: 02/03/2023]
Abstract
Limb-girdle muscular dystrophy R12 (LGMD-R12) is caused by recessive mutations in the Anoctamin-5 gene (ANO5, TMEM16E). Although ANO5 myopathy is not X-chromosome linked, we performed a meta-analysis of the research literature and found that three-quarters of patients with LGMD-R12 are males. Females are less likely to present with moderate to severe skeletal muscle and/or cardiac pathology. Because these sex differences could be explained in several ways, we compared males and females in a mouse model of LGMD-R12. This model recapitulates the sex differences in human LGMD-R12. Only male Ano5-/- mice had elevated serum creatine kinase after exercise and exhibited defective membrane repair after laser injury. In contrast, by these measures, female Ano5-/- mice were indistinguishable from wild type. Despite these differences, both male and female Ano5-/- mice exhibited exercise intolerance. Although exercise intolerance of male mice can be explained by skeletal muscle dysfunction, echocardiography revealed that Ano5-/- female mice had features of cardiomyopathy that may be responsible for their exercise intolerance. These findings heighten concerns that mutations of ANO5 in humans may be linked to cardiac disease.
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Affiliation(s)
- Steven Foltz
- Department of Cell Biology, School of Medicine, Emory University, Atlanta, Georgia
| | - Fang Wu
- Department of Cell Biology, School of Medicine, Emory University, Atlanta, Georgia
| | - Nasab Ghazal
- Department of Pediatrics, School of Medicine, Emory University, Atlanta, Georgia
| | - Jennifer Q Kwong
- Department of Cell Biology, School of Medicine, Emory University, Atlanta, Georgia
- Department of Pediatrics, School of Medicine, Emory University, Atlanta, Georgia
- Division of Pediatric Cardiology, Department of Pediatrics, School of Medicine, Emory University and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - H Criss Hartzell
- Department of Cell Biology, School of Medicine, Emory University, Atlanta, Georgia
| | - Hyojung J Choo
- Department of Cell Biology, School of Medicine, Emory University, Atlanta, Georgia
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8
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Vázquez J, Lefeuvre C, Escobar RE, Luna Angulo AB, Miranda Duarte A, Delia Hernandez A, Brisset M, Carlier RY, Leturcq F, Durand-Canard MC, Nicolas G, Laforet P, Malfatti E. Phenotypic Spectrum of Myopathies with Recessive Anoctamin-5 Mutations. J Neuromuscul Dis 2021; 7:443-451. [PMID: 32925086 DOI: 10.3233/jnd-200515] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Biallelic variants in Anoctamin 5 (ANO5) gene are causative of limb-girdle muscular dystrophy (LGMD) R12 anoctamin5-related, non-dysferlin Miyoshi-like distal myopathy (MMD3), and asymptomatic hyperCKemia. OBJECTIVE To describe clinic, histologic, genetic and imaging features, of ANO5 mutated patients. METHODS Five patients, four from France (P1, P2, P3 and P4) and one from Mexico (P5), from four families were included. P1 and P2, belonging to group 1, had normal muscle strength; Group 2, P3, P4 and P5, presented with muscular weakness. Muscle strength was measured by manual muscle testing, Medical Research Council (MRC) grades 1/5 to 5/5. Laboratory exams included serum CK levels, nerve conduction studies (NCS)/needle electromyography (EMG), pulmonary function tests, EKG and cardiac ultrasound. ANO5 molecular screening was performed with different approaches. RESULTS Group 1 patients showed myalgias with hyperCKemia or isolated hyperCKemia. Group 2 patients presented with limb-girdle or proximo-distal muscular weakness. Serum CK levels ranged from 897 to 5000 UI/L. Muscle biopsy analysis in P4 and P5 showed subsarcolemmal mitochondrial aggregates. Electron microscopy confirmed mitochondrial proliferation and revealed discontinuity of the sarcolemmal membrane. Muscle MRI showed asymmetrical fibro-fatty substitution predominant in the lower limbs.P1 and P2 were compound heterozygous for c.191dupA (p.Asn64Lysfs*15) and c.1898 + G>A; P3 was homozygous for the c.692G>T. (p.Gly231Val); P4 harbored a novel biallelic homozygous exons 1-7 ANO5 gene deletion, and P5 was homozygous for a c.172 C > T (p.(Arg 58 Trp)) ANO5 pathogenic variant. CONCLUSIONS Our cohort confirms the wide clinical variability and enlarge the genetic spectrum of ANO5-related myopathies.
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Affiliation(s)
- José Vázquez
- Department of Medical Genetics, National Rehabilitation Institute, "Luis Guillermo Ibarra Ibarra", México.,APHP, Department of Neurology, Raymond Poincaré Hospital, North-East-Ile-de-France Neuromuscular Pathology Reference Center, U 1179 INSERM, University Saint Quentin en Yvelines Versailles; Paris-Saclay, France
| | - Claire Lefeuvre
- APHP, Department of Neurology, Raymond Poincaré Hospital, North-East-Ile-de-France Neuromuscular Pathology Reference Center, U 1179 INSERM, University Saint Quentin en Yvelines Versailles; Paris-Saclay, France
| | - Rosa Elena Escobar
- Department of Electromyography and Muscle Dystrophies, National Rehabilitation Institute, "Luis Guillermo Ibarra Ibarra", México
| | | | - Antonio Miranda Duarte
- Department of Medical Genetics, National Rehabilitation Institute, "Luis Guillermo Ibarra Ibarra", México
| | - Alma Delia Hernandez
- Department of Pathology, National Rehabilitation Institute, "Luis Guillermo Ibarra Ibarra", México
| | - Marion Brisset
- APHP, Department of Neurology, Raymond Poincaré Hospital, North-East-Ile-de-France Neuromuscular Pathology Reference Center, U 1179 INSERM, University Saint Quentin en Yvelines Versailles; Paris-Saclay, France
| | - Robert-Yves Carlier
- APHP, GH U. Paris Saclay, DMU Smart Imaging, Department of Radiology, Raymond Poincaré teaching Hospital, 104 Bld R. Poincaré, 92380 Garches, France; U 1179 INSERM, Université Paris-Saclay
| | - France Leturcq
- APHP, Department of Genetics, Cochin Hospital, Paris, France
| | - Marie-Christine Durand-Canard
- APHP, Service of Physiological Explorations Raymond Poincaré Hospital, 104 Bld Raymond Poincaré, 92380 Garches, France
| | - Guillaume Nicolas
- APHP, Department of Neurology, Raymond Poincaré Hospital, North-East-Ile-de-France Neuromuscular Pathology Reference Center, U 1179 INSERM, University Saint Quentin en Yvelines Versailles; Paris-Saclay, France
| | - Pascal Laforet
- APHP, Department of Neurology, Raymond Poincaré Hospital, North-East-Ile-de-France Neuromuscular Pathology Reference Center, U 1179 INSERM, University Saint Quentin en Yvelines Versailles; Paris-Saclay, France
| | - Edoardo Malfatti
- APHP, Department of Neurology, Raymond Poincaré Hospital, North-East-Ile-de-France Neuromuscular Pathology Reference Center, U 1179 INSERM, University Saint Quentin en Yvelines Versailles; Paris-Saclay, France
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9
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Khawajazada T, Kass K, Rudolf K, de Stricker Borch J, Sheikh AM, Witting N, Vissing J. Muscle involvement assessed by quantitative magnetic resonance imaging in patients with anoctamin 5 deficiency. Eur J Neurol 2021; 28:3121-3132. [PMID: 34145687 DOI: 10.1111/ene.14979] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 05/23/2021] [Accepted: 06/13/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Using magnetic resonance imaging (MRI) and stationary dynamometry, the aim was to investigate the muscle affection in paraspinal muscles and lower extremities and compare the muscle affection in men and women with anoctamin 5 (ANO5) deficiency. METHODS Seventeen patients (seven women) with pathogenic ANO5-mutations were included. Quantitative muscle fat fraction of back and leg muscles were assessed by Dixon MRI. Muscle strength was assessed by stationary dynamometer. Results were compared with 11 matched, healthy controls. RESULTS Muscle involvement pattern in men with ANO5-deficiency is characterized by a severe fat replacement of hamstrings, adductor and gastrocnemius muscles, while paraspinal muscles are only mildly affected, while preserved gracilis and sartorius muscles were hypertrophied. Women with ANO5-myopathy, of the same age as male patients, were very mildly affected, showing muscle affection and strength resembling that found in healthy persons, with the exception of the gluteus minimus and medius and gastrocnemii muscles that were significantly replaced by fat. Although individual muscles showed clear asymmetric involvement in a few muscle groups, the overall muscle involvement was symmetric. CONCLUSIONS Patients with ANO5-deficiency have relatively preserved paraspinal muscles on imaging and only mild reduction of trunk extension strength in men only. Our study quantifies the large difference in muscle affection in lower extremity between women and men with ANO5-deficiency. The clinical notion is that affection may be very asymmetric in ANO5-deficiency, but the present study shows that while this may be true for a few muscles, the general impression is that muscle affection is very symmetric.
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Affiliation(s)
- Tahmina Khawajazada
- Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Konni Kass
- Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Karen Rudolf
- Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Josefine de Stricker Borch
- Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Aisha Munawar Sheikh
- Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Nanna Witting
- Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - John Vissing
- Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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10
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ten Dam L, de Visser M, Ginjaar IB, van Duyvenvoorde HA, van Koningsbruggen S, van der Kooi AJ. Elucidation of the Genetic Cause in Dutch Limb Girdle Muscular Dystrophy Families: A 27-Year's Journey. J Neuromuscul Dis 2021; 8:261-272. [PMID: 33386810 PMCID: PMC9789482 DOI: 10.3233/jnd-200585] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND A Dutch cohort of 105 carefully selected limb girdle muscular dystrophy (LGMD) patients from 68 families has been subject to genetic testing over the last 20 years. After subsequent targeted gene analysis around two thirds (45/68) of the families had received a genetic diagnosis in 2013. OBJECTIVE To describe the results of further genetic testing in the remaining undiagnosed limb girdle muscular dystrophy families in this cohort. METHODS In the families of the cohort for whom no genetic diagnosis was established (n = 23) further testing using Sanger sequencing, next generation sequencing with gene panel analysis or whole-exome sequencing was performed. In one case DNA analysis for facioscapulohumeral dystrophy type 1 was carried out. RESULTS In eight families no additional genetic tests could be performed. In 12 of the remaining 15 families in which additional testing could be performed a genetic diagnosis was established: two LGMDR1 calpain3-related families with CAPN3 mutations, one LGMDR2 dysferlin-related family with DYSF mutations, three sarcoglycanopathy families (LGMDR3-5 α-, β- and γ-sarcoglycan-related) with SGCA/SGCB/SGCG mutations, one LGMDR8 TRIM 32-related family with TRIM32 mutations, two LGMDR19 GMPPB-related families with GMPPB mutations, one family with MICU1-related myopathy, one family with FLNC-related myopathy and one family with facioscapulohumeral dystrophy type 1. At this moment a genetic diagnosis has been made in 57 of the 60 families of which DNA was available (95%). CONCLUSION A genetic diagnosis is obtained in 95% of the families of the original Dutch LGMD cohort of which DNA was available.
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Affiliation(s)
- L. ten Dam
- Department of Neurology, Amsterdam University Medical Centre, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, The Netherlands,Correspondence to: Leroy ten Dam, Department of Neurology, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands. Tel.: +31 20 566 9111; E-mail:
| | - M. de Visser
- Department of Neurology, Amsterdam University Medical Centre, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Ieke B. Ginjaar
- Department of Clinical Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | | | - Silvana van Koningsbruggen
- Department of Clinical Genetics, Amsterdam University Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Anneke J. van der Kooi
- Department of Neurology, Amsterdam University Medical Centre, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, The Netherlands
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11
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Foltz SJ, Cui YY, Choo HJ, Hartzell HC. ANO5 ensures trafficking of annexins in wounded myofibers. J Cell Biol 2021; 220:e202007059. [PMID: 33496727 PMCID: PMC7844426 DOI: 10.1083/jcb.202007059] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/20/2020] [Accepted: 12/23/2020] [Indexed: 12/14/2022] Open
Abstract
Mutations in ANO5 (TMEM16E) cause limb-girdle muscular dystrophy R12. Defective plasma membrane repair is a likely mechanism. Using myofibers from Ano5 knockout mice, we show that trafficking of several annexin proteins, which together form a cap at the site of injury, is altered upon loss of ANO5. Annexin A2 accumulates at the wound to nearly twice the level observed in WT fibers, while annexin A6 accumulation is substantially inhibited in the absence of ANO5. Appearance of annexins A1 and A5 at the cap is likewise diminished in the Ano5 knockout. These changes are correlated with an alteration in annexin repair cap fine structure and shedding of annexin-positive vesicles. We conclude that loss of annexin coordination during repair is disrupted in Ano5 knockout mice and underlies the defective repair phenotype. Although ANO5 is a phospholipid scramblase, abnormal repair is rescued by overexpression of a scramblase-defective ANO5 mutant, suggesting a novel, scramblase-independent role of ANO5 in repair.
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Affiliation(s)
| | | | - Hyojung J. Choo
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA
| | - H. Criss Hartzell
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA
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12
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de Visser M. Late-onset myopathies: clinical features and diagnosis. ACTA MYOLOGICA : MYOPATHIES AND CARDIOMYOPATHIES : OFFICIAL JOURNAL OF THE MEDITERRANEAN SOCIETY OF MYOLOGY 2020; 39:235-244. [PMID: 33458579 PMCID: PMC7783434 DOI: 10.36185/2532-1900-027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 11/24/2020] [Indexed: 11/06/2022]
Abstract
Late-onset myopathies are not well-defined since there is no clear definition of 'late onset'. For practical reasons we decided to use the age of 40 years as a cut-off. There are diseases which only manifest as late onset myopathy (inclusion body myositis, oculopharyngeal muscular dystrophy and axial myopathy). In addition, there are diseases with a wide range of onset including 'late onset' muscle weakness. Well-known and rather frequently occurring examples are Becker muscular dystrophy, limb girdle muscular dystrophy, facioscapulohumeral dystrophy, Pompe disease, myotonic dystrophy type 2, and anoctamin-5-related distal myopathy. The above-mentioned diseases will be discussed in detail including clinical presentation - which can sometimes lead someone astray - and diagnostic tools based on real cases taken from the author's practice. Where appropriate a differential diagnosis is provided. Next generation sequencing (NGS) may speed up the diagnostic process in hereditary myopathies, but still there are diseases, e.g. with expansion repeats, deletions, etc, in which NGS is as yet not very helpful.
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Affiliation(s)
- Marianne de Visser
- Department of Neurology, Amsterdam University Medical Centres, Amsterdam, The Netherlands
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13
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Savarese M, Sarparanta J, Vihola A, Jonson PH, Johari M, Rusanen S, Hackman P, Udd B. Panorama of the distal myopathies. ACTA MYOLOGICA : MYOPATHIES AND CARDIOMYOPATHIES : OFFICIAL JOURNAL OF THE MEDITERRANEAN SOCIETY OF MYOLOGY 2020; 39:245-265. [PMID: 33458580 PMCID: PMC7783427 DOI: 10.36185/2532-1900-028] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 12/15/2022]
Abstract
Distal myopathies are genetic primary muscle disorders with a prominent weakness at onset in hands and/or feet. The age of onset (from early childhood to adulthood), the distribution of muscle weakness (upper versus lower limbs) and the histological findings (ranging from nonspecific myopathic changes to myofibrillar disarrays and rimmed vacuoles) are extremely variable. However, despite being characterized by a wide clinical and genetic heterogeneity, the distal myopathies are a category of muscular dystrophies: genetic diseases with progressive loss of muscle fibers. Myopathic congenital arthrogryposis is also a form of distal myopathy usually caused by focal amyoplasia. Massive parallel sequencing has further expanded the long list of genes associated with a distal myopathy, and contributed identifying as distal myopathy-causative rare variants in genes more often related with other skeletal or cardiac muscle diseases. Currently, almost 20 genes (ACTN2, CAV3, CRYAB, DNAJB6, DNM2, FLNC, HNRNPA1, HSPB8, KHLH9, LDB3, MATR3, MB, MYOT, PLIN4, TIA1, VCP, NOTCH2NLC, LRP12, GIPS1) have been associated with an autosomal dominant form of distal myopathy. Pathogenic changes in four genes (ADSSL, ANO5, DYSF, GNE) cause an autosomal recessive form; and disease-causing variants in five genes (DES, MYH7, NEB, RYR1 and TTN) result either in a dominant or in a recessive distal myopathy. Finally, a digenic mechanism, underlying a Welander-like form of distal myopathy, has been recently elucidated. Rare pathogenic mutations in SQSTM1, previously identified with a bone disease (Paget disease), unexpectedly cause a distal myopathy when combined with a common polymorphism in TIA1. The present review aims at describing the genetic basis of distal myopathy and at summarizing the clinical features of the different forms described so far.
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Affiliation(s)
- Marco Savarese
- Folkhälsan Research Center, Helsinki, Finland
- Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
| | - Jaakko Sarparanta
- Folkhälsan Research Center, Helsinki, Finland
- Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
| | - Anna Vihola
- Folkhälsan Research Center, Helsinki, Finland
- Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
- Neuromuscular Research Center, Department of Genetics, Fimlab Laboratories, Tampere, Finland
| | - Per Harald Jonson
- Folkhälsan Research Center, Helsinki, Finland
- Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
| | - Mridul Johari
- Folkhälsan Research Center, Helsinki, Finland
- Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
| | - Salla Rusanen
- Folkhälsan Research Center, Helsinki, Finland
- Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
| | - Peter Hackman
- Folkhälsan Research Center, Helsinki, Finland
- Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
| | - Bjarne Udd
- Folkhälsan Research Center, Helsinki, Finland
- Department of Medical Genetics, Medicum, University of Helsinki, Helsinki, Finland
- Department of Neurology, Vaasa Central Hospital, Vaasa, Finland
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14
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Srinivasan R, Yun P, Neuhaus S, Mohassel P, Dastgir J, Donkervoort S, Schindler A, Mankodi A, Foley AR, Arai AE, Bönnemann CG. Cardiac MRI identifies valvular and myocardial disease in a subset of ANO5-related muscular dystrophy patients. Neuromuscul Disord 2020; 30:742-749. [PMID: 32819793 DOI: 10.1016/j.nmd.2020.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 05/19/2020] [Accepted: 07/02/2020] [Indexed: 11/17/2022]
Abstract
Patients with bi-allelic loss-of-function mutations in the gene ANO5 most commonly present with muscular dystrophy. In some studies, patients with ANO5-related dystrophy (ANO5-RD) had evidence of mild cardiac abnormalities; however, cardiac magnetic resonance imaging (MRI) has not been used for myocardial characterization. Ten patients with genetically confirmed ANO5-RD were enrolled in a phenotyping study to better characterize cardiac involvement. Evaluations included medical history, neurological examination and cardiac evaluations (electrocardiogram, echocardiogram and cardiac MRI). All patients were clinically asymptomatic from a cardiac perspective. Muscle MRI was consistent with previous studies of ANO5-RD with increased T1 signal in the posterior and medial compartments of the upper leg and the posterior compartment of the lower leg. Cardiac studies using echocardiography and cardiac MRI revealed dilation of the aortic root and thickening of the aortic valve without significant stenosis in 3/10 patients. There was evidence of abnormal late gadolinium enhancement (LGE) on cardiac MRI in 2/10 patients. In ANO5-RD, the development of cardiac fibrosis, edema or inflammation as demonstrated by LGE has not yet been reported. Cardiac MRI can characterize cardiac tissue and may detect subtle changes before they appear on echocardiography, with potential prognostic implications.
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Affiliation(s)
- Ranjini Srinivasan
- Advanced Cardiovascular Imaging Laboratory, NHLBI, NIH, Bethesda, MD, United States
| | - Pomi Yun
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD, United States
| | - Sarah Neuhaus
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD, United States
| | - Payam Mohassel
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD, United States
| | | | - Sandra Donkervoort
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD, United States
| | - Alice Schindler
- Neurogenetics Branch, NINDS, NIH, Bethesda, MD, United States
| | - Ami Mankodi
- Neurogenetics Branch, NINDS, NIH, Bethesda, MD, United States
| | - A Reghan Foley
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD, United States
| | - Andrew E Arai
- Advanced Cardiovascular Imaging Laboratory, NHLBI, NIH, Bethesda, MD, United States
| | - Carsten G Bönnemann
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD, United States.
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15
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Park J, Oh HM, Park HJ, Cho AR, Lee DW, Jang JH, Jang DH. Usefulness of comprehensive targeted multigene panel sequencing for neuromuscular disorders in Korean patients. Mol Genet Genomic Med 2019; 7:e00947. [PMID: 31475473 PMCID: PMC6785438 DOI: 10.1002/mgg3.947] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 07/22/2019] [Accepted: 08/07/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Multigene panel sequencing (MGPS) is the first-line option in diagnostic testing for genetically heterogeneous but clinically similar conditions, such as neuromuscular disorders (NMDs). In this study, we aimed to assess the utility of comprehensive NMD MGPS and the need for updated panels. METHODS All patients were analyzed by either of two versions of the NMD MGPS and by chromosomal microarray and karyotype testing. Four patients with negative NMD MGPS results underwent whole exome sequencing. RESULTS In total, 91 patients were enrolled, and a genetic diagnosis was made in 36 (39.6%); of these, 33 were diagnosed by the comprehensive NMD MGPS, two were confirmed by chromosomal microarray, and one was diagnosed by whole exome sequencing. For MGPS, the diagnostic yield of Version 2 (19/52; 36.5%) was a little higher than that of Version 1 (14/39; 35.9%), and one gene identified in Version 2 was not included in Version 1. A total of 36 definitive and nine possible causative variants were identified, of which 17 were novel. CONCLUSION A more comprehensive panel for NMD MGPS can improve the diagnostic efficiency in genetic testing. The rapid discovery of new disease-causing genes over recent years necessitates updates to existing gene panels.
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Affiliation(s)
- Jihye Park
- Department of Rehabilitation Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyun Mi Oh
- Department of Rehabilitation Medicine, National Traffic Injury Rehabilitation Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hye Jung Park
- Department of Rehabilitation Medicine, National Traffic Injury Rehabilitation Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ah-Ra Cho
- Department of Rehabilitation Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong-Woo Lee
- Department of Rehabilitation Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | | | - Dae-Hyun Jang
- Department of Rehabilitation Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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16
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Clinical spectrum and gene mutations in a Chinese cohort with anoctaminopathy. Neuromuscul Disord 2019; 29:628-633. [DOI: 10.1016/j.nmd.2019.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 01/25/2023]
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17
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Silva AMS, Coimbra-Neto AR, Souza PVS, Winckler PB, Gonçalves MVM, Cavalcanti EBU, Carvalho AADS, Sobreira CFDR, Camelo CG, Mendonça RDH, Estephan EDP, Reed UC, Machado-Costa MC, Dourado-Junior MET, Pereira VC, Cruzeiro MM, Helito PVP, Aivazoglou LU, Camargo LVD, Gomes HH, Camargo AJSD, Pinto WBVDR, Badia BML, Libardi LH, Yanagiura MT, Oliveira ASB, Nucci A, Saute JAM, França-Junior MC, Zanoteli E. Clinical and molecular findings in a cohort of ANO5-related myopathy. Ann Clin Transl Neurol 2019; 6:1225-1238. [PMID: 31353849 PMCID: PMC6649425 DOI: 10.1002/acn3.50801] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/23/2019] [Accepted: 05/08/2019] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE ANO5-related myopathy is an important cause of limb-girdle muscular dystrophy (LGMD) and hyperCKemia. The main descriptions have emerged from European cohorts, and the burden of the disease worldwide is unclear. We provide a detailed characterization of a large Brazilian cohort of ANO5 patients. METHODS A national cross-sectional study was conducted to describe clinical, histopathological, radiological, and molecular features of patients carrying recessive variants in ANO5. Correlation of clinical and genetic characteristics with different phenotypes was studied. RESULTS Thirty-seven patients from 34 nonrelated families with recessive mutations of ANO5 were identified. The most common phenotype was LGMD, observed in 25 (67.5%) patients, followed by pseudometabolic presentation in 7 (18.9%) patients, isolated asymptomatic hyperCKemia in 4 (10.8%) patients, and distal myopathy in a single patient. Nine patients presented axial involvement, including one patient with isolated axial weakness. The most affected muscles according to MRI were the semimembranosus and gastrocnemius, but paraspinal and abdominal muscles, when studied, were involved in most patients. Fourteen variants in ANO5 were identified, and the c.191dupA was present in 19 (56%) families. Sex, years of disease, and the presence of loss-of-function variants were not associated with specific phenotypes. INTERPRETATION We present the largest series of anoctaminopathy outside Europe. The most common European founder mutation c.191dupA was very frequent in our population. Gender, disease duration, and genotype did not determine the phenotype.
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Affiliation(s)
- André M S Silva
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Antônio R Coimbra-Neto
- Department of Neurology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Paulo Victor S Souza
- Division of Neuromuscular Diseases, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Pablo B Winckler
- Neurology Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | | | | | | | - Cláudia F D R Sobreira
- Departamento de Neurociências e Ciências do Comportamentom, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Clara G Camelo
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Rodrigo D H Mendonça
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Eduardo D P Estephan
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Umbertina C Reed
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | | | - Mario E T Dourado-Junior
- Departamento de Medicina Integrada, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Vanessa C Pereira
- Department of Neurology, Psychology and Psychiatry, Botucatu School of Medicine, Universidade Estadual Paulista Júlio Mesquita (UNESP), Botucatu, SP, Brazil
| | - Marcelo M Cruzeiro
- Division of Neuromuscular Diseases, Department of Neurology and Neurosurgery, Hospital Universitário, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, MG, Brazil
| | - Paulo V P Helito
- Department of Radiology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Laís U Aivazoglou
- Department of Diagnostic Imaging, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | | | - Hudson H Gomes
- Pontifícia Universidade Católica do Paraná, Londrina, PR, Brazil
| | - Amaro J S D Camargo
- Orthopedic Institute, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Wladimir B V D R Pinto
- Division of Neuromuscular Diseases, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Bruno M L Badia
- Division of Neuromuscular Diseases, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Luiz H Libardi
- Division of Neuromuscular Diseases, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Mario T Yanagiura
- Division of Neuromuscular Diseases, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Acary S B Oliveira
- Division of Neuromuscular Diseases, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Anamarli Nucci
- Department of Neurology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Jonas A M Saute
- Neurology Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.,Department of Internal Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,Medical Genetics Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | - Marcondes C França-Junior
- Department of Neurology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Edmar Zanoteli
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
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18
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ten Dam L, Frankhuizen WS, Linssen WH, Straathof CS, Niks EH, Faber K, Fock A, Kuks JB, Brusse E, de Coo R, Voermans N, Verrips A, Hoogendijk JE, van der Pol L, Westra D, de Visser M, van der Kooi AJ, Ginjaar I. Autosomal recessive limb‐girdle and Miyoshi muscular dystrophies in the Netherlands: The clinical and molecular spectrum of 244 patients. Clin Genet 2019; 96:126-133. [DOI: 10.1111/cge.13544] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 03/24/2019] [Accepted: 03/26/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Leroy ten Dam
- Department of NeurologyAmsterdam University Medical Centre, Amsterdam Neuroscience Amsterdam The Netherlands
| | - Wendy S. Frankhuizen
- Department of Clinical GeneticsLeiden University Medical Centre Leiden The Netherlands
| | | | - Chiara S. Straathof
- Department of NeurologyLeiden University Medical Centre Leiden The Netherlands
| | - Erik H. Niks
- Department of NeurologyLeiden University Medical Centre Leiden The Netherlands
| | - Karin Faber
- Department of NeurologyMaastricht University Medical Centre Maastricht The Netherlands
| | - Annemarie Fock
- Department of NeurologyUniversity Medical Centre Groningen Groningen The Netherlands
| | - Jan B. Kuks
- Department of NeurologyUniversity Medical Centre Groningen Groningen The Netherlands
| | - Esther Brusse
- Department of NeurologyErasmus MC University Medical Centre Rotterdam The Netherlands
| | - René de Coo
- Department of NeurologyErasmus MC University Medical Centre Rotterdam The Netherlands
| | - Nicol Voermans
- Department of NeurologyRadboud University Medical Centre Nijmegen The Netherlands
| | - Aad Verrips
- Department of NeurologyCanisius Wilhelmina Hospital Nijmegen Nijmegen The Netherlands
| | - Jessica E. Hoogendijk
- Department of NeurologyRudolf Magnus Institute of Neuroscience, University Medical Center Utrecht The Netherlands
| | - Ludo van der Pol
- Department of NeurologyRudolf Magnus Institute of Neuroscience, University Medical Center Utrecht The Netherlands
| | - Dineke Westra
- Department of Human GeneticsRadboud University Medical Centre Nijmegen The Netherlands
| | - Marianne de Visser
- Department of NeurologyAmsterdam University Medical Centre, Amsterdam Neuroscience Amsterdam The Netherlands
| | - Anneke J. van der Kooi
- Department of NeurologyAmsterdam University Medical Centre, Amsterdam Neuroscience Amsterdam The Netherlands
| | - Ieke Ginjaar
- Department of Clinical GeneticsLeiden University Medical Centre Leiden The Netherlands
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Anandan C, Milone M, Liewluck T. Intramuscular interstitial amyloid deposition does not impact anoctaminopathy-5 phenotype. Muscle Nerve 2018; 59:133-137. [DOI: 10.1002/mus.26349] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 09/11/2018] [Accepted: 09/15/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Charenya Anandan
- Department of Neurology; Mayo Clinic; 200 First Street SW, Rochester Minnesota 55905 USA
| | - Margherita Milone
- Department of Neurology; Mayo Clinic; 200 First Street SW, Rochester Minnesota 55905 USA
| | - Teerin Liewluck
- Department of Neurology; Mayo Clinic; 200 First Street SW, Rochester Minnesota 55905 USA
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20
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Hu B, Xiong L, Zhou Y, Lu X, Xiong Q, Liu Q, Qi X, Ding W. First familial limb-girdle muscular dystrophy 2L in China: Clinical, imaging, pathological, and genetic features. Medicine (Baltimore) 2018; 97:e12506. [PMID: 30235762 PMCID: PMC6160217 DOI: 10.1097/md.0000000000012506] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Limb-girdle muscular dystrophy 2L (LGMD2L) is mainly characterized by late adult onset, atrophy of proximal muscles, chronic progressive and asymmetric weakness, accompanied by increased creatine kinase (CK) levels, dystrophic pathological changes and electromyography showing myogenic damage. To date, familial LGMD2L was reported in European countries and had not been reported in China.A careful investigation of the clinical manifestations, muscle performance imaging, biopsy, and target next-generation sequencing (NGS) technology was utilized to identify pathogenic genetic variants in a 4-generation pedigree that includes 6 affected individuals.The results revealed mild-to-moderate hypertrophy of bilateral gastrocnemii and slight weakness and atrophy in the proximal muscles of the lower limbs, with obviously increased serum creatine kinase levels. The symptoms were more serious in the male proband but were also observed in females. Obvious and symmetric atrophy and fat infiltration of posterior segments of the thigh was evident in muscle magnetic resonance imaging (MRI). The pathological changes included a small amount of atrophic and hypertrophic fibers, scattered necrotizing fibers, a small number of increased nuclei, inward migration, mild proliferation of interstitial connective tissue, and no inflammatory cell infiltration. The pathogenic allele was a c.220C > T mutation in the anoctamin 5 (ANO5) gene.The LGMD2L family was characterized by mild chronic myopathy and bilateral gastrocnemius hypertrophy with obviously increased CK levels. Pathological changes included atrophy of fibers with interstitial connective tissues hyperplasia. The pathogenic allele was a c.220C> T mutation in the ANO5 gene.
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Affiliation(s)
- Bolin Hu
- Department of Neurology, The Second Affiliated Hospital of Nanchang University
| | - Li Xiong
- Department of Neurology, The Third Hospital of Nanchang
| | - Yibiao Zhou
- Department of Orthopaedics, The First Affiliated Hospital of Nanchang University, China
| | - Xiaoqing Lu
- Department of Neurology, The Second Affiliated Hospital of Nanchang University
| | - Qianqian Xiong
- Department of Neurology, The Second Affiliated Hospital of Nanchang University
| | - Qing Liu
- Department of Neurology, The Second Affiliated Hospital of Nanchang University
| | - Xueliang Qi
- Department of Neurology, The Second Affiliated Hospital of Nanchang University
| | - Weijiang Ding
- Department of Neurology, The Second Affiliated Hospital of Nanchang University
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21
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Witherick J, Brady S. Update on muscle disease. J Neurol 2018; 265:1717-1725. [DOI: 10.1007/s00415-018-8856-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 03/30/2018] [Indexed: 12/24/2022]
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22
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Xu J, Xu L, Lau YS, Gao Y, Moore SA, Han R. A novel ANO5 splicing variant in a LGMD2L patient leads to production of a truncated aggregation-prone Ano5 peptide. J Pathol Clin Res 2018; 4:135-145. [PMID: 29665321 PMCID: PMC5903698 DOI: 10.1002/cjp2.92] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 12/12/2017] [Accepted: 01/04/2018] [Indexed: 12/12/2022]
Abstract
Mutations in ANO5 cause several human diseases including gnathodiaphyseal dysplasia 1 (GDD1), limb-girdle muscular dystrophy 2L (LGMD2L), and Miyoshi myopathy 3 (MMD3). Previous work showed that complete genetic disruption of Ano5 in mice did not recapitulate human muscular dystrophy, while residual expression of mutant Ano5 in a gene trapped mouse developed muscular dystrophy with defective membrane repair. This suggests that truncated Ano5 expression may be pathogenic. Here, we screened a panel of commercial anti-Ano5 antibodies using a recombinant adenovirus expressing human Ano5 with FLAG and YFP at the N- and C-terminus, respectively. The monoclonal antibody (mAb) N421A/85 was found to specifically detect human Ano5 by immunoblotting and immunofluorescence staining. The antigen epitope was mapped to a region of 28 residues within the N-terminus. Immunofluorescence staining of muscle cryosections from healthy control subjects showed that Ano5 is localized at the sarcoplasmic reticulum. The muscle biopsy from a LGMD2L patient homozygous for the c.191dupA mutation showed no Ano5 signal, confirming the specificity of the N421A/85 antibody. Surprisingly, strong Ano5 signal was detected in a patient with compound heterozygous mutations (c.191dupA and a novel splice donor site variant c.363 + 4A > G at the exon 6-intron 6 junction). Interestingly, insertion of the mutant intron 6, but not the wild-type intron 6, into human ANO5 cDNA resulted in a major transcript that carried the first 158-bp of intron 6. Transfection of the construct encoding the first 121 amino acids into C2C12 cells resulted in protein aggregate formation, suggesting that aggregate-forming Ano5 peptide may contribute to the pathogenesis of muscular dystrophy.
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Affiliation(s)
- Jing Xu
- Division of Cardiovascular Medicine, Department of Cardiac Surgery, Dorothy M. Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOHUSA
| | - Li Xu
- Division of Cardiovascular Medicine, Department of Cardiac Surgery, Dorothy M. Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOHUSA
| | - Yeh S Lau
- Division of Cardiovascular Medicine, Department of Cardiac Surgery, Dorothy M. Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOHUSA
| | - Yandi Gao
- Division of Cardiovascular Medicine, Department of Cardiac Surgery, Dorothy M. Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOHUSA
| | - Steven A Moore
- Department of Pathology, Carver College of MedicineUniversity of IowaIowa CityIAUSA
| | - Renzhi Han
- Division of Cardiovascular Medicine, Department of Cardiac Surgery, Dorothy M. Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOHUSA
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23
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Liewluck T, Milone M. Characterization of isolated amyloid myopathy. Eur J Neurol 2017; 24:1437-1445. [PMID: 28888072 DOI: 10.1111/ene.13448] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 09/01/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND PURPOSE Amyloid myopathy frequently occurs in the setting of systemic amyloidosis and less commonly in isolation (isolated amyloid myopathy). Anoctaminopathy-5 and dysferlinopathy were recently recognized as causes of isolated amyloid myopathy. The present study aimed to characterize the isolated amyloid myopathy and to compare it with amyloid myopathy associated with systemic amyloidosis. METHODS We searched the Muscle Laboratory database to identify patients with pathologically confirmed amyloid myopathy seen in neurology clinics between January 1998 and September 2016. Patients with monoclonal gammopathy, peripheral neuropathy, organomegaly or symptoms or pathologic evidence of amyloid deposition outside skeletal muscle were classified as having systemic amyloidosis-associated myopathy. RESULTS Fifty-two patients were identified, including 14 with isolated amyloid myopathy (eight anoctaminopathy-5, two dysferlinopathy and four genetically unknown) and 38 with systemic amyloidosis (32 immunoglobulin light-chain amyloidosis, four familial amyloid polyneuropathy and two senile systemic amyloidosis). Compared with patients with systemic amyloidosis, patients with isolated amyloid myopathy had a younger age of onset (median, 41.5 vs. 65 years), no dysphagia (0% vs. 26%) or weight loss (0% vs. 26%), but more frequent calf atrophy (57% vs. 0%), small collections of inflammatory cells on muscle biopsy (43% vs. 0%) and asymptomatic hyperCKemia at onset (21% vs. 0%). All patients with isolated amyloid myopathy had creatine kinase (CK) values >2.5 times the upper limit of normal. CONCLUSIONS Isolated amyloid myopathy accounts for 27% of patients with amyloid myopathy, mostly due to anoctaminopathy-5. There are various clinical and laboratory parameters that can help to differentiate isolated amyloid myopathy from systemic amyloidosis.
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Affiliation(s)
- T Liewluck
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - M Milone
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
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24
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Angelini C, Fanin M. Limb girdle muscular dystrophies: clinical-genetical diagnostic update and prospects for therapy. Expert Opin Orphan Drugs 2017. [DOI: 10.1080/21678707.2017.1367283] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Corrado Angelini
- Department of Neurodegenerative Disorders, Neuromuscular Center, San Camillo Hospital IRCCS, Venice, Italy
| | - Marina Fanin
- Department of Neurosciences, University of Padova, Padova, Italy
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25
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Ylikallio E, Auranen M, Mahjneh I, Lamminen A, Kousi M, Träskelin AL, Muurinen T, Löfberg M, Salmi T, Paetau A, Lehesjoki AE, Piirilä P, Kiuru-Enari S. Decreased Aerobic Capacity in ANO5-Muscular Dystrophy. J Neuromuscul Dis 2016; 3:475-485. [DOI: 10.3233/jnd-160186] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Emil Ylikallio
- Research Programs Unit, Molecular Neurology, Biomedicum Helsinki, University of Helsinki, Helsinki, Finland
- Clinical Neurosciences, Neurology, University of Helsinki and Helsinki University Hospital, Finland
| | - Mari Auranen
- Research Programs Unit, Molecular Neurology, Biomedicum Helsinki, University of Helsinki, Helsinki, Finland
- Clinical Neurosciences, Neurology, University of Helsinki and Helsinki University Hospital, Finland
| | - Ibrahim Mahjneh
- Division of Neurology, Pietarsaari District Hospital, Pietarsaari, Finland
- Department of Neurology, MRC Oulu, Oulu University Hospital and University of Oulu, Finland
| | - Antti Lamminen
- Department of Radiology, HUS Medical Imaging Center, Helsinki, Finland
| | - Maria Kousi
- Folkhälsan Institute of Genetics, Helsinki, Finland
| | | | - Tiina Muurinen
- Unit of Clinical Physiology, HUS Medical Imaging Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Mervi Löfberg
- Clinical Neurosciences, Neurology, University of Helsinki and Helsinki University Hospital, Finland
| | - Tapani Salmi
- Department of Clinical Neurophysiology, Medical Imaging Center, Helsinki University Hospital, Helsinki, Finland
| | - Anders Paetau
- Department of Pathology, HUSLAB and University of Helsinki, Helsinki, Finland
| | - Anna-Elina Lehesjoki
- Research Programs Unit, Molecular Neurology, Biomedicum Helsinki, University of Helsinki, Helsinki, Finland
- Folkhälsan Institute of Genetics, Helsinki, Finland
- Neuroscience Center, University of Helsinki, Finland
| | - Päivi Piirilä
- Unit of Clinical Physiology, HUS Medical Imaging Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Sari Kiuru-Enari
- Clinical Neurosciences, Neurology, University of Helsinki and Helsinki University Hospital, Finland
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26
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Bohlega S, Monies DM, Abulaban AA, Murad HN, Alhindi HN, Meyer BF. Clinical and genetic features of anoctaminopathy in Saudi Arabia. ACTA ACUST UNITED AC 2015; 20:173-7. [PMID: 25864073 PMCID: PMC4727640 DOI: 10.17712/nsj.2015.2.20140547] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Objectives: Characterization of the phenotypic, pathological, radiological, and genetic findings in 2 Saudi Arabian families with anoctaminopathies, and limb girdle muscular dystrophy type 2L (LGMD2L). Methods: Over a 2-year period from December 2010 to January 2013, the clinical presentations were analyzed and all genes responsible for limb girdle muscular dystrophy (LGMD) were screened in families seen at King Faisal Specialist Hospital and Research Centre, a tertiary care hospital in Riyadh, Saudi Arabia. Out of 66 families with LGMD, we identified 2 families (3.1%) with anoctaminopathy, ANO5 muscular dystrophy. Results: In the first case, a man presented with asymmetrical calves’ muscles weakness and atrophy, which was first noted at age 39. The creatinine kinase (CK) level was >20x normal, muscle biopsy showed necrotizing myopathic changes, and an MRI of the legs showed fatty-tissue replacement to muscle tissue with volume loss involving the gastrocnemius and soleus muscles in an asymmetrical fashion. Minimal disease progression was noted over 18 years of follow up. Exercise induced recurrent rhabdomyolysis was noted over the last 2 years. A novel ANO5 gene mutation (Arg58Trp) was found. In the second family, a male presented at the age of 41 with asymptomatic hyperCkemia and intermittent dyspnea. Over 10 years follow up, he became disabled with muscle cramps, rhabdomyolysis, myoglobinurea, and difficulty ambulating. Muscle biopsy showed necrotizing myopathy and perivascular and interstitial amyloid deposit in skeletal muscle. A homozygous deletion of 11.9 Kb encompassing exon 13 to exon 17 was found in the ANO5 gene. Full cardiac investigations were normal in both patients. Conclusion: The prevalence of LGMD2L is approximately 3.1% in a Saudi Arabian native LGMD cohort. Slowly progressive, late onset, and asymmetrical weakness was the salient features in these 2 families. The genetic findings were novel and will add to the spectrum of ANO5 known mutations.
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Affiliation(s)
- Saeed Bohlega
- Department of Neurosciences, MBC 76, King Faisal Specialist Hospital & Research Centre, PO Box 3354, Riyadh 11211, Kingdom of Saudi Arabia. E-mail:
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27
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ten Dam L, van der Kooi AJ, Rövekamp F, Linssen WH, de Visser M. Comparing clinical data and muscle imaging of DYSF and ANO5 related muscular dystrophies. Neuromuscul Disord 2014; 24:1097-102. [DOI: 10.1016/j.nmd.2014.07.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 06/29/2014] [Accepted: 07/17/2014] [Indexed: 12/12/2022]
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28
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Stehlíková K, Skálová D, Zídková J, Mrázová L, Vondráček P, Mazanec R, Voháňka S, Haberlová J, Hermanová M, Zámečník J, Souček O, Ošlejšková H, Dvořáčková N, Solařová P, Fajkusová L. Autosomal recessive limb-girdle muscular dystrophies in the Czech Republic. BMC Neurol 2014; 14:154. [PMID: 25135358 PMCID: PMC4145250 DOI: 10.1186/s12883-014-0154-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 07/21/2014] [Indexed: 01/21/2023] Open
Abstract
Background Autosomal recessive limb-girdle muscular dystrophies (LGMD2) include a number of disorders with heterogeneous etiology that cause predominantly weakness and wasting of the shoulder and pelvic girdle muscles. In this study, we determined the frequency of LGMD subtypes within a cohort of Czech LGMD2 patients using mutational analysis of the CAPN3, FKRP, SGCA, and ANO5 genes. Methods PCR-sequencing analysis; sequence capture and targeted resequencing. Results Mutations of the CAPN3 gene are the most common cause of LGMD2, and mutations in this gene were identified in 71 patients in a set of 218 Czech probands with a suspicion of LGMD2. Totally, we detected 37 different mutations of which 12 have been described only in Czech LGMD2A patients. The mutation c.550delA is the most frequent among our LGMD2A probands and was detected in 47.1% of CAPN3 mutant alleles. The frequency of particular forms of LGMD2 was 32.6% for LGMD2A (71 probands), 4.1% for LGMD2I (9 probands), 2.8% for LGMD2D (6 probands), and 1.4% for LGMD2L (3 probands). Further, we present the first results of a new approach established in the Czech Republic for diagnosis of neuromuscular diseases: sequence capture and targeted resequencing. Using this approach, we identified patients with mutations in the DYSF and SGCB genes. Conclusions We characterised a cohort of Czech LGMD2 patients on the basis of mutation analysis of genes associated with the most common forms of LGMD2 in the European population and subsequently compared the occurrence of particular forms of LGMD2 among countries on the basis of our results and published studies.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Lenka Fajkusová
- Centre of Molecular Biology and Gene Therapy, University Hospital Brno, Černopolní 9, Brno, 613 00, Czech Republic.
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29
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Vissing CR, Preisler N, Husu E, Prahm KP, Vissing J. Aerobic training in patients with anoctamin 5 myopathy and hyperckemia. Muscle Nerve 2014; 50:119-23. [DOI: 10.1002/mus.24112] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 10/18/2013] [Accepted: 10/29/2013] [Indexed: 02/01/2023]
Affiliation(s)
- Christoffer R. Vissing
- Neuromuscular Research Unit, Department of Neurology, Section 3342, Rigshospitalet; University of Copenhagen; Blegdamsvej 9, DK-2100 Copenhagen Denmark
| | - Nicolai Preisler
- Neuromuscular Research Unit, Department of Neurology, Section 3342, Rigshospitalet; University of Copenhagen; Blegdamsvej 9, DK-2100 Copenhagen Denmark
| | - Edith Husu
- Neuromuscular Research Unit, Department of Neurology, Section 3342, Rigshospitalet; University of Copenhagen; Blegdamsvej 9, DK-2100 Copenhagen Denmark
| | - Kira P. Prahm
- Neuromuscular Research Unit, Department of Neurology, Section 3342, Rigshospitalet; University of Copenhagen; Blegdamsvej 9, DK-2100 Copenhagen Denmark
| | - John Vissing
- Neuromuscular Research Unit, Department of Neurology, Section 3342, Rigshospitalet; University of Copenhagen; Blegdamsvej 9, DK-2100 Copenhagen Denmark
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30
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Joshi PR, Gläser D, Dreßel C, Kress W, Weis J, Deschauer M. Anoctamin 5 muscular dystrophy associated with a silent p.Leu115Leu mutation resulting in exon skipping. Neuromuscul Disord 2013; 24:43-7. [PMID: 24239059 DOI: 10.1016/j.nmd.2013.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 07/22/2013] [Accepted: 09/02/2013] [Indexed: 10/26/2022]
Abstract
We report a 45year-old patient with an asymmetrical proximal muscle weakness affecting the quadriceps muscle of the right leg starting at the age of 32years. CK was 25-fold increased. MRI of the legs showed signs of fatty degeneration more pronounced in the right side. Biopsy of a thigh muscle showed dystrophic pattern and amyloid deposition in blood vessel walls. The coding region and exon/intron boundaries of the ANO5 gene were amplified and sequenced. The common c.191dupA mutation and a silent novel p.Leu115Leu (c.345G>A) variant were identified. This silent variant was listed neither in the LOVD database nor in the SNP database. To evaluate the pathogenicity of the novel silent mutation in ANO5, cDNA analysis was performed that demonstrated skipping of exon 6. So far, no case with a silent mutation leading to abnormal splicing has been identified in Anoctamin 5 muscular dystrophy. Present findings emphasize that cDNA analysis should be done if a silent variant is not annotated in the databases. In Anoctamin 5 muscular dystrophy a molecular diagnosis is even more important as protein investigation through Western blotting or immunohistochemistry is not yet established.
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Affiliation(s)
- Pushpa Raj Joshi
- Department of Neurology, Martin-Luther-University Halle-Wittenberg, Germany.
| | | | | | - Wolfram Kress
- Institute of Human Genetics, Biozentrum, University Würzburg, Germany
| | - Joachim Weis
- Institute of Neuropathology, RWTH Aachen, Germany
| | - Marcus Deschauer
- Department of Neurology, Martin-Luther-University Halle-Wittenberg, Germany
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