1
|
Chen B, Zhang Z, Zhang C, Niu S, Pan H, Dong G, Wang X. Clinical and pathological study of SORD-related distal motor neuropathy caused by novel compound heterozygous mutations in a Chinese patient. Clin Neurol Neurosurg 2021; 213:107118. [PMID: 34995833 DOI: 10.1016/j.clineuro.2021.107118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/26/2021] [Accepted: 12/29/2021] [Indexed: 11/03/2022]
Abstract
Sorbitol dehydrogenase (SORD) has been identified as the causative gene of autosomal recessive distal hereditary motor neuropathies (dHMN). Here, we describe a 25-year-old woman who presented with progressive weakness of both lower limbs for the previous 10 years. Electrophysiological results suggested only a reduction in the compound muscle action potential (CMAP) amplitude of both the tibial and left deep peroneal nerves and neurogenic changes in needle EMG. A heterozygous c.757delG variant with a splicing c.786 + 1 G>A variant in the SORD gene was identified. A sural nerve biopsy revealed slight axon separation from the myelin sheath and thin myelin sheaths in very few nerve fibres and thickening of the microvasculature basement membrane. Our study expands the pathological and mutation spectrum of the SORD-related neuropathy.
Collapse
Affiliation(s)
- Bin Chen
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Zaiqiang Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Cuiping Zhang
- Department of Ultrastructural Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Songtao Niu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Hua Pan
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Gehong Dong
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xingao Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China
| |
Collapse
|
2
|
Gentile L, Russo M, Taioli F, Ferrarini M, Aguennouz M, Rodolico C, Toscano A, Fabrizi GM, Mazzeo A. Rare among Rare: Phenotypes of Uncommon CMT Genotypes. Brain Sci 2021; 11:brainsci11121616. [PMID: 34942918 PMCID: PMC8699517 DOI: 10.3390/brainsci11121616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 11/30/2021] [Accepted: 12/06/2021] [Indexed: 11/30/2022] Open
Abstract
(1) Background: Charcot–Marie–Tooth disease (CMT) is the most frequent form of inherited chronic motor and sensory polyneuropathy. Over 100 CMT causative genes have been identified. Previous reports found PMP22, GJB1, MPZ, and MFN2 as the most frequently involved genes. Other genes, such as BSCL2, MORC2, HINT1, LITAF, GARS, and autosomal dominant GDAP1 are responsible for only a minority of CMT cases. (2) Methods: we present here our records of CMT patients harboring a mutation in one of these rare genes (BSCL2, MORC2, HINT1, LITAF, GARS, autosomal dominant GDAP1). We studied 17 patients from 8 unrelated families. All subjects underwent neurologic evaluation and genetic testing by next-generation sequencing on an Ion Torrent PGM (Thermo Fischer) with a 44-gene custom panel. (3) Results: the following variants were found: BSCL2 c.263A > G p.Asn88Ser (eight subjects), MORC2 c.1503A > T p.Gln501His (one subject), HINT1 c.110G > C p.Arg37Pro (one subject), LITAF c.404C > G p.Pro135Arg (two subjects), GARS c.1660G > A p.Asp554Asn (three subjects), GDAP1 c.374G > A p.Arg125Gln (two subjects). (4) Expanding the spectrum of CMT phenotypes is of high relevance, especially for less common variants that have a higher risk of remaining undiagnosed. The necessity of reaching a genetic definition for most patients is great, potentially making them eligible for future experimentations.
Collapse
Affiliation(s)
- Luca Gentile
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.R.); (M.A.); (C.R.); (A.T.); (A.M.)
- Correspondence:
| | - Massimo Russo
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.R.); (M.A.); (C.R.); (A.T.); (A.M.)
| | - Federica Taioli
- Department of Neurological Sciences, Biomedicine and Movement Sciences, University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy; (F.T.); (M.F.); (G.M.F.)
| | - Moreno Ferrarini
- Department of Neurological Sciences, Biomedicine and Movement Sciences, University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy; (F.T.); (M.F.); (G.M.F.)
| | - M’Hammed Aguennouz
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.R.); (M.A.); (C.R.); (A.T.); (A.M.)
| | - Carmelo Rodolico
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.R.); (M.A.); (C.R.); (A.T.); (A.M.)
| | - Antonio Toscano
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.R.); (M.A.); (C.R.); (A.T.); (A.M.)
| | - Gian Maria Fabrizi
- Department of Neurological Sciences, Biomedicine and Movement Sciences, University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy; (F.T.); (M.F.); (G.M.F.)
- Azienda Ospedaliera Universitaria Integrata Verona—Borgo Roma, Piazzale L.A. Scuro 10, 37134 Verona, Italy
| | - Anna Mazzeo
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.R.); (M.A.); (C.R.); (A.T.); (A.M.)
| |
Collapse
|
3
|
Fernández-Eulate G, Fernández-Torrón R, Guisasola A, Gaspar MTI, Diaz-Manera J, Maneiro M, Zulaica M, Olasagasti V, Formica AF, Espinal JB, Ruiz M, Schlüter A, Pujol A, Poza JJ, López de Munain A. Phenotypic correlations in a large single-center cohort of patients with BSCL2 nerve disorders: a clinical, neurophysiological and muscle magnetic resonance imaging study. Eur J Neurol 2020; 27:1364-1373. [PMID: 32320108 DOI: 10.1111/ene.14272] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/16/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE BSCL2 heterozygote mutations are a common cause of distal hereditary motor neuropathies (dHMNs). A series of BSCL2 patients is presented and clinical, neurophysiological and muscle magnetic resonance imaging (MRI) findings are correlated. METHODS Twenty-six patients from five families carrying the p.N88S mutation were identified. Age of onset, clinical phenotype (dHMN, Charcot-Marie-Tooth, spastic paraplegia), physical examination, disability measured as a modified Rankin Scale score and neurophysiological findings were collected. A whole body muscle MRI had been performed in 18 patients. The pattern of muscle involvement on T1-weighted and short time inversion recovery sequences was analysed. Hierarchical analysis using heatmaps and an MRI Composite Score were generated. Statistical analysis was carried out with STATA SE v.15 (TX, USA). RESULTS The mean age was 51.54 ± 19.94 years and 14 patients were men. dHMN was the most common phenotype (50%) and five patients (19.23%) showed no findings on examination. Disease onset was commonly in childhood and disability was low (modified Rankin Scale score 1.34 ± 1.13) although median time since onset of disease was 32 years (range 10-47). Charcot-Marie-Tooth-like patients were more disabled and disability correlated with age. On muscle MRI, thenar eminence, soleus and tibialis anterior were most frequently involved, irrespective of clinical phenotype. MRI Composite Score was strongly correlated with disability. CONCLUSION Patients with the p.N88S BSCL2 gene mutation are phenotypically variable, although dHMN is most frequent and generally slowly progressive. Muscle MRI pattern is consistent regardless of phenotype and correlates with disease severity, probably serving as a reliable outcome measure for future clinical trials.
Collapse
Affiliation(s)
- G Fernández-Eulate
- Department of Neurology, Donostia University Hospital, San Sebastian, Spain.,Reference Center for Neuromuscular Disorders, Pitié-Salpêtrière Hospital, Institute of Myology, Paris, France
| | - R Fernández-Torrón
- Department of Neurology, Donostia University Hospital, San Sebastian, Spain.,Neuromuscular Area, Group of Neurodegenerative Diseases, Biodonostia Health Research Institute, San Sebastian, Spain
| | - A Guisasola
- Department of Radiology, Osatek, San Sebastian, Spain
| | - M T I Gaspar
- Clinical Epidemiology Unit, Donostia University Hospital, San Sebastian, Spain
| | - J Diaz-Manera
- Unitat de Malaties Neuromuscularis, Servei de Neurologia, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,John Walton Muscular Dystrophy Research Center, University of Newcastle, Newcastle, UK
| | - M Maneiro
- Department of Neurology, Donostia University Hospital, San Sebastian, Spain
| | - M Zulaica
- Neuromuscular Area, Group of Neurodegenerative Diseases, Biodonostia Health Research Institute, San Sebastian, Spain
| | - V Olasagasti
- Department of Neurology, Donostia University Hospital, San Sebastian, Spain
| | - A F Formica
- Department of Neurology, Donostia University Hospital, San Sebastian, Spain
| | - J B Espinal
- Department of Neurology, Donostia University Hospital, San Sebastian, Spain
| | - M Ruiz
- Neurometabolic Diseases Laboratory, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Spain.,Center for Biomedical Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Madrid, Spain
| | - A Schlüter
- Neurometabolic Diseases Laboratory, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Spain
| | - A Pujol
- Neurometabolic Diseases Laboratory, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Spain.,Center for Biomedical Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Madrid, Spain.,Catalan Institution of Research and Advanced Studies (ICREA), Barcelona, Spain
| | - J J Poza
- Department of Neurology, Donostia University Hospital, San Sebastian, Spain
| | - A López de Munain
- Department of Neurology, Donostia University Hospital, San Sebastian, Spain.,Neuromuscular Area, Group of Neurodegenerative Diseases, Biodonostia Health Research Institute, San Sebastian, Spain.,Neuroscience Department, School of Medicine of the University of the Basque Country, San Sebastian, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto Carlos III, Madrid, Spain
| |
Collapse
|
4
|
Minami K, Takahashi S, Nihei Y, Oki K, Suzuki S, Ito D, Takashima H, Suzuki N. The First Report of a Japanese Case of Seipinopathy with a BSCL2 N88S Mutation. Intern Med 2018; 57:613-615. [PMID: 29269637 PMCID: PMC5849563 DOI: 10.2169/internalmedicine.8765-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Seipinopathy is an autosomal dominant neurodegenerative disease caused by mutations of the Berardinelli-Seip Congenital Lipodystrophy 2 (BSCL2) gene. We report the first Japanese case of seipinopathy with a heterozygous mutation of p.N88S in the BSCL2 gene. The patient showed bilateral hyperreflexia of the biceps, triceps, brachioradialis, and knee, as well as the pes cavus and distal dominant weakness and atrophy of both arms and legs, suggesting the involvement of both upper and lower motor neurons. Mutations of the BSCL2 gene have been known to cause motor neuron degeneration through endoplasmic reticulum stress. Seipinopathy should be considered in patients with symptoms mimicking amyotrophic lateral sclerosis.
Collapse
Affiliation(s)
- Kazushi Minami
- Department of Neurology, Keio University School of Medicine, Japan
| | | | - Yoshihiro Nihei
- Department of Neurology, Keio University School of Medicine, Japan
| | - Koichi Oki
- Department of Neurology, Keio University School of Medicine, Japan
| | - Shigeaki Suzuki
- Department of Neurology, Keio University School of Medicine, Japan
| | - Daisuke Ito
- Department of Neurology, Keio University School of Medicine, Japan
| | - Hiroshi Takashima
- Department of Neurology and Geriatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Japan
| | - Norihiro Suzuki
- Department of Neurology, Keio University School of Medicine, Japan
| |
Collapse
|
5
|
Weis J, Claeys KG, Roos A, Azzedine H, Katona I, Schröder JM, Senderek J. Towards a functional pathology of hereditary neuropathies. Acta Neuropathol 2017; 133:493-515. [PMID: 27896434 DOI: 10.1007/s00401-016-1645-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 11/10/2016] [Accepted: 11/13/2016] [Indexed: 12/11/2022]
Abstract
A growing number of hereditary neuropathies have been assigned to causative gene defects in recent years. The study of human nerve biopsy samples has contributed substantially to the discovery of many of these neuropathy genes. Genotype-phenotype correlations based on peripheral nerve pathology have provided a comprehensive picture of the consequences of these mutations. Intriguingly, several gene defects lead to distinguishable lesion patterns that can be studied in nerve biopsies. These characteristic features include the loss of certain nerve fiber populations and a large spectrum of distinct structural changes of axons, Schwann cells and other components of peripheral nerves. In several instances the lesion patterns are directly or indirectly linked to the known functions of the mutated gene. The present review is designed to provide an overview on these characteristic patterns. It also considers other aspects important for the manifestation and pathology of hereditary neuropathies including the role of inflammation, effects of chemotherapeutic agents and alterations detectable in skin biopsies.
Collapse
Affiliation(s)
- Joachim Weis
- Institute of Neuropathology, RWTH Aachen University Medical School, Pauwelsstr. 30, 52074, Aachen, Germany.
| | - Kristl G Claeys
- Institute of Neuropathology, RWTH Aachen University Medical School, Pauwelsstr. 30, 52074, Aachen, Germany
- Department of Neurology, RWTH Aachen University Medical School, Pauwelsstr. 30, 52074, Aachen, Germany
- Department of Neurology, University Hospitals Leuven and University of Leuven (KU Leuven), Leuven, Belgium
| | - Andreas Roos
- Institute of Neuropathology, RWTH Aachen University Medical School, Pauwelsstr. 30, 52074, Aachen, Germany
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., Otto-Hahn-Str. 6b, 44227, Dortmund, Germany
| | - Hamid Azzedine
- Institute of Neuropathology, RWTH Aachen University Medical School, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Istvan Katona
- Institute of Neuropathology, RWTH Aachen University Medical School, Pauwelsstr. 30, 52074, Aachen, Germany
| | - J Michael Schröder
- Institute of Neuropathology, RWTH Aachen University Medical School, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Jan Senderek
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University, Ziemssenstr. 1a, 80336, Munich, Germany.
| |
Collapse
|
6
|
Wei S, Soh SLY, Xia J, Ong WY, Pang ZP, Han W. Motor neuropathy-associated mutation impairs Seipin functions in neurotransmission. J Neurochem 2014; 129:328-38. [DOI: 10.1111/jnc.12638] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 11/18/2013] [Accepted: 12/12/2013] [Indexed: 12/11/2022]
Affiliation(s)
- Shunhui Wei
- Laboratory of Metabolic Medicine; Singapore Bioimaging Consortium, A*STAR; Singapore
| | - Stephanie Li-Ying Soh
- Laboratory of Metabolic Medicine; Singapore Bioimaging Consortium, A*STAR; Singapore
| | - Julia Xia
- Laboratory of Metabolic Medicine; Singapore Bioimaging Consortium, A*STAR; Singapore
- Child Health Institute of New Jersey; Department of Neuroscience and Cell Biology; Rutgers Robert Wood Johnson Medical School; New Brunswick New Jersey USA
| | - Wei-Yi Ong
- Department of Anatomy; Yong Loo Lin School of Medicine; National University of Singapore; Singapore
| | - Zhiping P. Pang
- Child Health Institute of New Jersey; Department of Neuroscience and Cell Biology; Rutgers Robert Wood Johnson Medical School; New Brunswick New Jersey USA
| | - Weiping Han
- Laboratory of Metabolic Medicine; Singapore Bioimaging Consortium, A*STAR; Singapore
- Institute of Molecular and Cell Biology; A*STAR; Singapore
- Department of Biochemistry; Yong Loo Lin School of Medicine; National University of Singapore; Singapore
- Cardiovascular and Metabolic Disorders Program; Duke-NUS Graduate Medical School; Singapore
| |
Collapse
|
7
|
Choi BO, Park MH, Chung KW, Woo HM, Koo H, Chung HK, Choi KG, Park KD, Lee HJ, Hyun YS, Koo SK. Clinical and histopathological study of Charcot-Marie-Tooth neuropathy with a novel S90W mutation in BSCL2. Neurogenetics 2012; 14:35-42. [PMID: 23142943 DOI: 10.1007/s10048-012-0346-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 10/17/2012] [Indexed: 11/28/2022]
Abstract
The objective of the study was to investigate the disease-causing mutation in an autosomal dominant Charcot-Marie-Tooth disease type 2 family and examine the clinical and histopathological evaluation. We enrolled a family of Korean origin with axonal Charcot-Marie-Tooth disease neuropathy (FC305; 13 males, six females) and applied genome-wide linkage analysis. Whole exome sequencing was performed for two patients. In addition, sural nerve biopsies were obtained from two patients. Through whole exome sequencing, we identified an average of 20,336 coding variants from two patients. We also found evidence of linkage mapped to chromosome 11p11-11q13.3 (LOD score of 3.6). Among these variants in the linkage region, we detected a novel p.S90W mutation in the Berardinelli-Seip congenital lipodystrophy 2 (BSCL2) gene, after filtering 31 Korean control exomes. Our p.S90W patients had frequent sensory disturbances, pyramidal tract signs, and predominant right thenar muscle atrophy in comparison with reported p.S90L patients. The phenotypic spectra were wide and demonstrated intrafamilial variability. Two patients with different clinical features underwent sural nerve biopsies; the myelinated fiber densities were increased slightly in both patients, which differed from two previous case reports of BSCL2 mutations (p.S90L and p.N88S). This report expands the variability of the clinical spectrum associated with the BSCL2 gene and describes the first family with the p.S90W mutation.
Collapse
Affiliation(s)
- B-O Choi
- Department of Neurology, Ewha Womans University School of Medicine, Seoul, Korea
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Luigetti M, Fabrizi GM, Madia F, Ferrarini M, Conte A, Delgrande A, Tonali PA, Sabatelli M. Seipin S90L mutation in an Italian family with CMT2/dHMN and pyramidal signs. Muscle Nerve 2010; 42:448-51. [PMID: 20806400 DOI: 10.1002/mus.21734] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Heterozygous mutations in the Berardinelli-Seip congenital lipodystrophy (BSCL2) gene have been associated with different clinical phenotypes including Silver syndrome/spastic paraplegia 17, distal hereditary motor neuropathy type V, and Charcot-Marie-Tooth disease type 2 (CMT2) with predominant hand involvement. We studied an Italian family with a CMT2 phenotype with pyramidal signs that had subclinical sensory involvement on sural nerve biopsy. Direct sequencing analysis of the BSCL2 gene in the three affected siblings revealed an S90L mutation. This report confirms the variability of clinical phenotypes associated with a BSCL2 Ser90Leu mutation and describes the first Italian family with this mutation.
Collapse
Affiliation(s)
- M Luigetti
- Institute of Neurology, Catholic University of Sacred Heart, Rome, Italy
| | | | | | | | | | | | | | | |
Collapse
|