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Derkaczew M, Martyniuk P, Osowski A, Wojtkiewicz J. Cyclitols: From Basic Understanding to Their Association with Neurodegeneration. Nutrients 2023; 15:2029. [PMID: 37432155 DOI: 10.3390/nu15092029] [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: 04/03/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 07/12/2023] Open
Abstract
One of the most common cyclitols found in eukaryotic cells-Myo-inositol (MI) and its derivatives play a key role in many cellular processes such as ion channel physiology, signal transduction, phosphate storage, cell wall formation, membrane biogenesis and osmoregulation. The aim of this paper is to characterize the possibility of neurodegenerative disorders treatment using MI and the research of other therapeutic methods linked to MI's derivatives. Based on the reviewed literature the researchers focus on the most common neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, Huntington's disease and Spinocerebellar ataxias, but there are also works describing other seldom encountered diseases. The use of MI, d-pinitol and other methods altering MI's metabolism, although research on this topic has been conducted for years, still needs much closer examination. The dietary supplementation of MI shows a promising effect on the treatment of neurodegenerative disorders and can be of great help in alleviating the accompanying depressive symptoms.
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Affiliation(s)
- Maria Derkaczew
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland
- Students' Scientific Club of Pathophysiologists, Department of Human Physiology and Pathophysiology, School of Medicine, University of Warmia and Mazury, 10-082 Olsztyn, Poland
| | - Piotr Martyniuk
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland
- Students' Scientific Club of Pathophysiologists, Department of Human Physiology and Pathophysiology, School of Medicine, University of Warmia and Mazury, 10-082 Olsztyn, Poland
| | - Adam Osowski
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland
| | - Joanna Wojtkiewicz
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland
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Ghorbani F, de Boer EN, Benjamins-Stok M, Verschuuren-Bemelmans CC, Knapper J, de Boer-Bergsma J, de Vries JJ, Sikkema-Raddatz B, Verbeek DS, Westers H, van Diemen CC. Copy Number Variant Analysis of Spinocerebellar Ataxia Genes in a Cohort of Dutch Patients With Cerebellar Ataxia. Neurol Genet 2023; 9:e200050. [PMID: 38058854 PMCID: PMC10696507 DOI: 10.1212/nxg.0000000000200050] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 10/27/2022] [Indexed: 12/08/2023]
Abstract
Background and Objectives The spinocerebellar ataxias (SCAs) are a genetically heterogeneous group of neurodegenerative disorders generally caused by single nucleotide variants (SNVs) or indels in coding regions or by repeat expansions in coding and noncoding regions of SCA genes. Copy number variants (CNVs) have now also been reported for 3 genes-ITPR1, FGF14, and SPTBN2-but not all SCA genes have been screened for CNVs as the underlying cause of the disease in patients. In this study, we aim to assess the prevalence of CNVs encompassing 36 known SCA genes. Methods A cohort of patients with cerebellar ataxia who were referred to the University Medical Center Groningen for SCA genetic diagnostics was selected for this study. Genome-wide single nucleotide polymorphism (SNP) genotyping was performed using the Infinium Global Screening Array. Following data processing, genotyping data were uploaded into NxClinical software to perform CNV analysis per patient and to visualize identified CNVs in 36 genes with allocated SCA symbols. The clinical relevance of detected CNVs was determined using evidence from studies based on PubMed literature searches for similar CNVs and phenotypic features. Results Of the 338 patients with cerebellar ataxia, we identified putative clinically relevant CNV deletions in 3 patients: an identical deletion encompassing ITPR1 in 2 patients, who turned out to be related, and a deletion involving PPP2R2B in another patient. Although the CNV deletion in ITPR1 was clearly the underlying cause of SCA15 in the 2 related patients, the clinical significance of the deletion in PPP2R2B remained unknown. Discussion We showed that CNVs detectable with the limited resolution of SNP array are a very rare cause of SCA. Nevertheless, we suggest adding CNV analysis alongside SNV analysis to SCA gene diagnostics using next-generation sequencing approaches, at least for ITPR1, to improve the genetic diagnostics for patients.
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Affiliation(s)
- Fatemeh Ghorbani
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Eddy N de Boer
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Marloes Benjamins-Stok
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Corien C Verschuuren-Bemelmans
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Jurjen Knapper
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Jelkje de Boer-Bergsma
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Jeroen J de Vries
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Birgit Sikkema-Raddatz
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Dineke S Verbeek
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Helga Westers
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Cleo C van Diemen
- From the Department of Genetics (F.G., E.N.d.B., M.B.-S., C.C.V.-B., J.K., J.d.B.-B., B.S.-R., D.S.V., H.W., C.C.v.D.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; and Department of Neurology (J.J.d.V.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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Chen B, Qi CY, Chen L, Dai MJ, Miao YY, Chen R, Wei WE, Yang S, Wang HL, Duan XG, Gong MW, Wang Y, Xue ZF. A C1976Y missense mutation in the mouse Ip3r1 gene leads to short-term mydriasis and unfolded protein response in the iris constrictor muscles. Exp Anim 2019; 69:45-53. [PMID: 31391379 PMCID: PMC7004804 DOI: 10.1538/expanim.19-0007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ip3r1 encodes an inositol 1,4,5-trisphosphate-responsive calcium
channel. Mutations in the IP3R1 gene in humans may cause Gillespie
syndrome (GS) typically presents as fixed dilated pupils in affected infants, which was
referred to as iris hypoplasia. However, there is no report of mice with
Ip3r1 heterozygous mutations showing dilated pupils. Here, we report a
new Ip3r1 allele with short-term dilated pupil phenotype derived from an
N-ethyl-N-nitrosourea (ENU) mutagenesis screen. This allele carries a G5927A transition
mutation in Ip3r1 gene (NM_010585), which is predicted to result in a
C1976Y amino acid change in the open reading frame of IP3R1 (NP_034715). We named this
novel Ip3r1 allele Ip3r1C1976Y. Histology and
pharmacological tests show that the dilated pupil phenotype is a mydriasis caused by the
functional defect in the iris constrictor muscles in
Ip3r1C1976Y. The dilated pupil phenotype in
Ip3r1C1976Y was referred to as mydriasis and excluding
iris hypoplasia. IHC analysis revealed increased expression of BIP protein, the master
regulator of unfolded protein response (UPR) signaling, in
Ip3r1C1976Y mice that did not recover. This study is the
first report of an Ip3r1 mutation being associated with the mydriasis
phenotype. Ip3r1C1976Y mice represent a self-healing model
that may be used to study the therapeutic approach for Ip3r1-related
diseases.
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Affiliation(s)
- Bing Chen
- Institute of Comparative Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China.,College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Chong-Yang Qi
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Li Chen
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Meng-Jun Dai
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Ya-You Miao
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Rui Chen
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Wan-E Wei
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Shun Yang
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Hong-Ling Wang
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Xiao-Ge Duan
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Min-Wei Gong
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Yi Wang
- College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
| | - Zheng-Feng Xue
- Institute of Comparative Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China.,College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
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Ca 2+ signaling and spinocerebellar ataxia. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1865:1733-1744. [PMID: 29777722 DOI: 10.1016/j.bbamcr.2018.05.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/07/2018] [Accepted: 05/09/2018] [Indexed: 11/22/2022]
Abstract
Spinocerebellar ataxia (SCA) is a neural disorder, which is caused by degenerative changes in the cerebellum. SCA is primarily characterized by gait ataxia, and additional clinical features include nystagmus, dysarthria, tremors and cerebellar atrophy. Forty-four hereditary SCAs have been identified to date, along with >35 SCA-associated genes. Despite the great diversity and distinct functionalities of the SCA-related genes, accumulating evidence supports the occurrence of a common pathophysiological event among several hereditary SCAs. Altered calcium (Ca2+) homeostasis in the Purkinje cells (PCs) of the cerebellum has been proposed as a possible pathological SCA trigger. In support of this, signaling events that are initiated from or lead to aberrant Ca2+ release from the type 1 inositol 1,4,5-trisphosphate receptor (IP3R1), which is highly expressed in cerebellar PCs, seem to be closely associated with the pathogenesis of several SCA types. In this review, we summarize the current research on pathological hereditary SCA events, which involve altered Ca2+ homeostasis in PCs, through IP3R1 signaling.
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Egorova PA, Bezprozvanny IB. Inositol 1,4,5-trisphosphate receptors and neurodegenerative disorders. FEBS J 2018; 285:3547-3565. [PMID: 29253316 DOI: 10.1111/febs.14366] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/27/2017] [Accepted: 12/12/2017] [Indexed: 12/15/2022]
Abstract
The inositol 1,4,5-trisphosphate receptor (IP3 R) is an intracellular ion channel that mediates the release of calcium ions from the endoplasmic reticulum. It plays a role in basic biological functions, such as cell division, differentiation, fertilization and cell death, and is involved in developmental processes including learning, memory and behavior. Deregulation of neuronal calcium signaling results in disturbance of cell homeostasis, synaptic loss and dysfunction, eventually leading to cell death. Three IP3 R subtypes have been identified in mammalian cells and the predominant isoform in neurons is IP3 R type 1. Dysfunction of IP3 R type 1 may play a role in the pathogenesis of certain neurodegenerative diseases as enhanced activity of the IP3 R was observed in models of Huntington's disease, spinocerebellar ataxias and Alzheimer's disease. These results suggest that IP3 R-mediated signaling is a potential target for treatment of these disorders. In this review we discuss the structure, functions and regulation of the IP3 R in healthy neurons and in conditions of neurodegeneration.
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Affiliation(s)
- Polina A Egorova
- Laboratory of Molecular Neurodegeneration, Peter the Great St. Petersburg Polytechnic University, St Petersburg, Russia
| | - Ilya B Bezprozvanny
- Laboratory of Molecular Neurodegeneration, Peter the Great St. Petersburg Polytechnic University, St Petersburg, Russia.,Department of Physiology, University of Texas Southwestern Medical Center, Dallas, TX, USA
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7
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Hsiao CT, Liu YT, Liao YC, Hsu TY, Lee YC, Soong BW. Mutational analysis of ITPR1 in a Taiwanese cohort with cerebellar ataxias. PLoS One 2017; 12:e0187503. [PMID: 29186133 PMCID: PMC5706750 DOI: 10.1371/journal.pone.0187503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 10/20/2017] [Indexed: 12/13/2022] Open
Abstract
Background The inositol 1,4,5-triphosphate (IP3) receptor type 1 gene (ITPR1) encodes the IP3 receptor type 1 (IP3R1), which modulates intracellular calcium homeostasis and signaling. Mutations in ITPR1 have been implicated in inherited cerebellar ataxias. The aim of this study was to investigate the role of ITPR1 mutations, including both large segmental deletion and single nucleotide mutations, in a Han Chinese cohort with inherited cerebellar ataxias in Taiwan. Methodology and principal findings Ninety-three unrelated individuals with molecularly unassigned spinocerebellar ataxia selected from 585 pedigrees with autosomal dominant cerebellar ataxias, were recruited into the study with elaborate clinical evaluations. The quantitative PCR technique was used to survey large segmental deletion of ITPR1 and a targeted sequencing approach was applied to sequence all of the 61 exons and the flanking regions of ITPR1. A novel ITPR1 mutation, c.7721T>C (p.V2574A), was identified in a family with dominantly inherited cerebellar ataxia. The proband has an adult-onset non-progressive pure cerebellar ataxia and her daughter is afflicted with a childhood onset cerebellar ataxia with intellectual sub-normalities. Conclusion ITPR1 mutation is an uncommon cause of inherited cerebellar ataxia, accounting for 0.2% (1/585) of patients with dominantly inherited cerebellar ataxias in Taiwan. This study broadens the mutational spectrum of ITPR1 and also emphasizes the importance of considering ITPR1 mutations as a potential cause of inherited cerebellar ataxias.
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Affiliation(s)
- Cheng-Tsung Hsiao
- Division of Neurology, Department of Internal Medicine, Taipei Veterans General Hospital Taoyuan Branch, Taoyuan, Taiwan, Republic of China
- Department of Neurology, National Yang-Ming University School of Medicine, Taipei, Taiwan, Republic of China
- Graduate Institute of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Yo-Tsen Liu
- Department of Neurology, National Yang-Ming University School of Medicine, Taipei, Taiwan, Republic of China
- Department of Neurology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Yi-Chu Liao
- Department of Neurology, National Yang-Ming University School of Medicine, Taipei, Taiwan, Republic of China
- Department of Neurology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Ting-Yi Hsu
- Department of Neurology, National Yang-Ming University School of Medicine, Taipei, Taiwan, Republic of China
- Department of Neurology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Yi-Chung Lee
- Department of Neurology, National Yang-Ming University School of Medicine, Taipei, Taiwan, Republic of China
- Department of Neurology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Brain Research Center, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Bing-Wen Soong
- Department of Neurology, National Yang-Ming University School of Medicine, Taipei, Taiwan, Republic of China
- Department of Neurology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Brain Research Center, National Yang-Ming University, Taipei, Taiwan, Republic of China
- Institute of Neuroscience, National Yang-Ming University, Taipei, Taiwan, Republic of China
- * E-mail:
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8
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Coutelier M, Coarelli G, Monin ML, Konop J, Davoine CS, Tesson C, Valter R, Anheim M, Behin A, Castelnovo G, Charles P, David A, Ewenczyk C, Fradin M, Goizet C, Hannequin D, Labauge P, Riant F, Sarda P, Sznajer Y, Tison F, Ullmann U, Van Maldergem L, Mochel F, Brice A, Stevanin G, Durr A. A panel study on patients with dominant cerebellar ataxia highlights the frequency of channelopathies. Brain 2017; 140:1579-1594. [PMID: 28444220 DOI: 10.1093/brain/awx081] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 02/05/2017] [Indexed: 12/21/2022] Open
Abstract
Autosomal dominant cerebellar ataxias have a marked heterogeneous genetic background, with mutations in 34 genes identified so far. This large amount of implicated genes accounts for heterogeneous clinical presentations, making genotype-phenotype correlations a major challenge in the field. While polyglutamine ataxias, linked to CAG repeat expansions in genes such as ATXN1, ATXN2, ATXN3, ATXN7, CACNA1A and TBP, have been extensively characterized in large cohorts, there is a need for comprehensive assessment of frequency and phenotype of more 'conventional' ataxias. After exclusion of CAG/polyglutamine expansions in spinocerebellar ataxia genes in 412 index cases with dominantly inherited cerebellar ataxias, we aimed to establish the relative frequencies of mutations in other genes, with an approach combining panel sequencing and TaqMan® polymerase chain reaction assay. We found relevant genetic variants in 59 patients (14.3%). The most frequently mutated were channel genes [CACNA1A (n = 16), KCND3 (n = 4), KCNC3 (n = 2) and KCNA1 (n = 2)]. Deletions in ITPR1 (n = 11) were followed by biallelic variants in SPG7 (n = 9). Variants in AFG3L2 (n = 7) came next in frequency, and variants were rarely found in STBN2 (n = 2), ELOVL5, FGF14, STUB1 and TTBK2 (n = 1 each). Interestingly, possible risk factor variants were detected in SPG7 and POLG. Clinical comparisons showed that ataxias due to channelopathies had a significantly earlier age at onset with an average of 24.6 years, versus 40.9 years for polyglutamine expansion spinocerebellar ataxias and 37.8 years for SPG7-related forms (P = 0.001). In contrast, disease duration was significantly longer in the former (20.5 years versus 9.3 and 13.7, P=0.001), though for similar functional stages, indicating slower progression of the disease. Of interest, intellectual deficiency was more frequent in channel spinocerebellar ataxias, while cognitive impairment in adulthood was similar among the three groups. Similar differences were found among a single gene group, comparing 23 patients with CACNA1A expansions (spinocerebellar ataxia 6) to 22 patients with CACNA1A point mutations, which had lower average age at onset (25.2 versus 47.3 years) with longer disease duration (18.7 versus 10.9), but lower severity indexes (0.39 versus 0.44), indicating slower progression of the disease. In conclusion, we identified relevant genetic variations in up to 15% of cases after exclusion of polyglutamine expansion spinocerebellar ataxias, and confirmed CACNA1A and SPG7 as major ataxia genes. We could delineate firm genotype-phenotype correlations that are important for genetic counselling and of possible prognostic value.
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Affiliation(s)
- Marie Coutelier
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Laboratory of Human Molecular Genetics, de Duve Institute, Université catholique de Louvain, 1200, Brussels, Belgium.,Ecole Pratique des Hautes Etudes, PSL Research University, 75014, Paris, France
| | - Giulia Coarelli
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Centre de Référence de Neurogénétique, Hôpital de la Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, 75013, Paris, France
| | - Marie-Lorraine Monin
- Centre de Référence de Neurogénétique, Hôpital de la Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, 75013, Paris, France
| | - Juliette Konop
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Ecole Pratique des Hautes Etudes, PSL Research University, 75014, Paris, France
| | - Claire-Sophie Davoine
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France
| | - Christelle Tesson
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Ecole Pratique des Hautes Etudes, PSL Research University, 75014, Paris, France
| | - Rémi Valter
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Ecole Pratique des Hautes Etudes, PSL Research University, 75014, Paris, France
| | - Mathieu Anheim
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, 67200, Strasbourg, France.,Département de Neurologie, Hôpital de Hautepierre, CHU de Strasbourg, 67100, Strasbourg, France.,Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM-U964/CNRS-UMR7104/Université de Strasbourg, 67400, Illkirch, France
| | - Anthony Behin
- AP-HP, Centre de Référence de Pathologie Neuromusculaire Paris-Est, Institut de Myologie, GHU Pitié-Salpêtrière, 75013, Paris, France
| | - Giovanni Castelnovo
- Service de Neurologie, Centre Hospitalier Universitaire Caremeau, 30900, Nîmes, France
| | - Perrine Charles
- Centre de Référence de Neurogénétique, Hôpital de la Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, 75013, Paris, France
| | - Albert David
- Service de Génétique Médicale Centre Hospitalier Universitaire de Nantes, 44093, Nantes, France
| | - Claire Ewenczyk
- Centre de Référence de Neurogénétique, Hôpital de la Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, 75013, Paris, France
| | - Mélanie Fradin
- Service de Génétique Médicale, CHU de Rennes, 35033, Rennes, France.,Service de Génétique Médicale, Centre Hospitalier de Saint Brieuc, 22000, Saint-Brieuc, France
| | - Cyril Goizet
- INSERM U1211, Université de Bordeaux, Laboratoire Maladies Rares, Génétique et Métabolisme, 33000, Bordeaux, France.,CHU Bordeaux, Service de Génétique Médicale, 33000, Bordeaux, France
| | - Didier Hannequin
- Service de Génétique, Service de Neurologie, Inserm U1079, Rouen University Hospital, 76031, Rouen, France
| | - Pierre Labauge
- Service de Neurologie, Hopital Gui de Chauliac, CHU de Montpellier, 34295, Montpellier Cedex 5, France
| | - Florence Riant
- Assistance Publique - Hôpitaux de Paris, Groupe Hospitalier Lariboisiere-Fernand Widal, Laboratoire de Génétique, 75010, Paris, France
| | - Pierre Sarda
- Département de Génétique Médicale, Hôpital Arnaud de Villeneuve, CHU de Montpellier, 34295 Montpellier, France
| | - Yves Sznajer
- Cliniques Universitaires Saint-Luc, Centre for Human Genetics, 1200, Brussels, Belgium
| | - François Tison
- Institut des Maladies Neurodégénératives, CHU de Bordeaux, Université de Bordeaux, CNRS UMR 5293, 33076, Bordeaux, France
| | - Urielle Ullmann
- Centre de génétique humaine, Institut de Pathologie et de Génétique, 6041, Gosselies, Belgium
| | - Lionel Van Maldergem
- Centre de Génétique Humaine, Université de Franche-Comté, 25000, Besançon, France.,Centre de Référence pour les Maladies Métaboliques, Université de Liège, 4000, Liège, Belgium
| | - Fanny Mochel
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Centre de Référence de Neurogénétique, Hôpital de la Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, 75013, Paris, France.,Neurometabolic Research Group, University Pierre and Marie Curie, 75013, Paris, France
| | - Alexis Brice
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Centre de Référence de Neurogénétique, Hôpital de la Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, 75013, Paris, France
| | - Giovanni Stevanin
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Ecole Pratique des Hautes Etudes, PSL Research University, 75014, Paris, France.,Centre de Référence de Neurogénétique, Hôpital de la Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, 75013, Paris, France
| | - Alexandra Durr
- INSERM U 1127, 75013, Paris, France.,Centre National de la Recherche Scientifique UMR 7225, 75013, Paris, France.,UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, 75013, Paris, France.,Institut du Cerveau et de la Moelle Epinière, 75013, Paris, France.,Centre de Référence de Neurogénétique, Hôpital de la Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, 75013, Paris, France
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9
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Das J, Lilleker J, Shereef H, Ealing J. Missense mutation in the ITPR1 gene presenting with ataxic cerebral palsy: Description of an affected family and literature review. Neurol Neurochir Pol 2017; 51:497-500. [PMID: 28826917 DOI: 10.1016/j.pjnns.2017.06.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 06/04/2017] [Accepted: 06/30/2017] [Indexed: 11/25/2022]
Abstract
The inositol 1,4,5-triphosphate receptor type 1 (ITPR1) gene on chromosome 3 belongs to a family of genes encoding intracellular calcium channel proteins. Such channels are located primarily within the endoplasmic reticular membrane and release Ca2+, an intracellular messenger, which governs numerous intracellular and extracellular functions. We report a family with infantile-onset cerebellar ataxia with delayed motor development and intellectual disability caused by a heterozygous c.805C>T, p.Arg269Trp missense mutation in ITPR1. Both affected family members had postural tremor, hypotonia and dysarthria, but neither had pyramidal signs. Their neuroimaging revealed cerebellar atrophy. Several neurological conditions have been associated with ITPR1 mutations, such as spinocerebellar ataxia type 15 and Gillespie syndrome, and the phenotype may vary according to the location and type of mutations. Spinocerebellar ataxia type 15 is an autosomal dominant disorder, which causes late onset pure cerebellar ataxia. Gillespie syndrome is characterised by bilateral iris hypoplasia, congenital hypotonia, non-progressive ataxia and cerebellar atrophy. In this report, we provide a detailed phenotypic description of a family with a missense mutation in ITPR1. This mutation has only been reported once before. We also provide a literature review of the various phenotypes associated with ITPR1 gene.
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Affiliation(s)
- Joyutpal Das
- Department of Neurology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Glossop Road, Sheffield S10 2JF, United Kingdom.
| | - James Lilleker
- Greater Manchester Neurosciences Centre, Salford Royal NHS Foundation Trust, Stott Lane, Salford M6 8HD, United Kingdom.
| | - Hannah Shereef
- Greater Manchester Neurosciences Centre, Salford Royal NHS Foundation Trust, Stott Lane, Salford M6 8HD, United Kingdom.
| | - John Ealing
- Greater Manchester Neurosciences Centre, Salford Royal NHS Foundation Trust, Stott Lane, Salford M6 8HD, United Kingdom.
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10
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Casey JP, Hirouchi T, Hisatsune C, Lynch B, Murphy R, Dunne AM, Miyamoto A, Ennis S, van der Spek N, O’Hici B, Mikoshiba K, Lynch SA. A novel gain-of-function mutation in the ITPR1 suppressor domain causes spinocerebellar ataxia with altered Ca2+ signal patterns. J Neurol 2017. [DOI: 10.1007/s00415-017-8545-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Hisatsune C, Mikoshiba K. IP 3 receptor mutations and brain diseases in human and rodents. J Neurochem 2017; 141:790-807. [PMID: 28211945 DOI: 10.1111/jnc.13991] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 02/03/2017] [Accepted: 02/12/2017] [Indexed: 01/15/2023]
Abstract
The inositol 1,4,5-trisphosphate receptor (IP3 R) is a huge Ca2+ channel that is localized at the endoplasmic reticulum. The IP3 R releases Ca2+ from the endoplasmic reticulum upon binding to IP3 , which is produced by various extracellular stimuli through phospholipase C activation. All vertebrate organisms have three subtypes of IP3 R genes, which have distinct properties of IP3 -binding and Ca2+ sensitivity, and are differently regulated by phosphorylation and by their associated proteins. Each cell type expresses the three subtypes of IP3 R in a distinct proportion, which is important for creating and maintaining spatially and temporally appropriate intracellular Ca2+ level patterns for the regulation of specific physiological phenomena. Of the three types of IP3 Rs, the type 1 receptor (IP3 R1) is dominantly expressed in the brain and is important for brain function. Recent emerging evidence suggests that abnormal Ca2+ signals from the IP3 R1 are closely associated with human brain pathology. In this review, we focus on the recent advances in our knowledge of the regulation of IP3 R1 and its functional implication in human brain diseases, as revealed by IP3 R mutation studies and analysis of human disease-associated genes. This article is part of the mini review series "60th Anniversary of the Japanese Society for Neurochemistry".
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Affiliation(s)
- Chihiro Hisatsune
- Laboratory for Developmental Neurobiology, Brain Science Institute, Institute of Physical and Chemical Research (RIKEN), Saitama, Japan
| | - Katsuhiko Mikoshiba
- Laboratory for Developmental Neurobiology, Brain Science Institute, Institute of Physical and Chemical Research (RIKEN), Saitama, Japan
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12
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Tipton PW, Guthrie K, Strongosky A, Reimer R, Wszolek ZK. Spinocerebellar ataxia 15: A phenotypic review and expansion. Neurol Neurochir Pol 2016; 51:86-91. [PMID: 27908616 DOI: 10.1016/j.pjnns.2016.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 10/30/2016] [Indexed: 11/20/2022]
Abstract
Spinocerebellar ataxia 15 (SCA15) is a clinically heterogeneous movement disorder characterized by the adult onset of slowly progressive cerebellar ataxia. ITPR1 is the SCA15 causative gene. However, despite numerous reports of genetically-confirmed SCA15, phenotypic uncertainty persists. We reviewed the phenotypes of 60 patients for whom SCA15 was confirmed by the presence of a genetic deletion involving ITPR1. The most prevalent symptoms were gait ataxia (88.3%), dysarthria (75.0%), nystagmus (73.3%), and limb ataxia (71.7%). We also present a novel SCA15 phenotype in a woman with an ITPR1 variant found to have hydrocephalus that improved with ventriculoperitoneal shunting. This is the first reported case of hydrocephalus associated with SCA15. In this review, we analyzed previously reported SCA15 phenotypes and present a novel SCA15 phenotype. We also address important considerations for evaluating patients with complex hereditary movement disorders.
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Affiliation(s)
- Philip W Tipton
- Department of Neurology, Mayo Clinic, Jacksonville, FL, United States.
| | - Kimberly Guthrie
- Center for Individualized Medicine, Mayo Clinic, Jacksonville, FL, United States.
| | - Audrey Strongosky
- Department of Neurology, Mayo Clinic, Jacksonville, FL, United States.
| | - Ronald Reimer
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL, United States.
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13
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Sun YM, Lu C, Wu ZY. Spinocerebellar ataxia: relationship between phenotype and genotype - a review. Clin Genet 2016; 90:305-14. [PMID: 27220866 DOI: 10.1111/cge.12808] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 05/16/2016] [Accepted: 05/16/2016] [Indexed: 12/12/2022]
Abstract
Spinocerebellar ataxia (SCA) comprises a large group of heterogeneous neurodegenerative disorders inherited in an autosomal dominant fashion. It is characterized by progressive cerebellar ataxia with oculomotor dysfunction, dysarthria, pyramidal signs, extrapyramidal signs, pigmentary retinopathy, peripheral neuropathy, cognitive impairment and other symptoms. It is classified according to the clinical manifestations or genetic nosology. To date, 40 SCAs have been characterized, and include SCA1-40. The pathogenic genes of 28 SCAs were identified. In recent years, with the widespread clinical use of next-generation sequencing, the genes underlying SCAs, and the mutants as well as the affected phenotypes were identified. These advances elucidated the phenotype-genotype relationship in SCAs. We reviewed the recent clinical advances, genetic features and phenotype-genotype correlations involving each SCA and its differentiation. The heterogeneity of the disease and the genetic diagnosis might be attributed to the regional distribution and clinical characteristics. Therefore, recognition of the phenotype-genotype relationship facilitates genetic testing, prognosis and monitoring of symptoms.
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Affiliation(s)
- Y-M Sun
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - C Lu
- Department of Neurology and Research Center of Neurology in Second Affiliated Hospital, the Collaborative Innovation Center for Brain Science, Zhejiang University School of Medicine, Hangzhou, China.,Department of Neurology and Institute of Neurology, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Z-Y Wu
- Department of Neurology and Research Center of Neurology in Second Affiliated Hospital, the Collaborative Innovation Center for Brain Science, Zhejiang University School of Medicine, Hangzhou, China. .,Joint Institute for Genetics and Genome Medicine between Zhejiang University and University of Toronto, Zhejiang University, Hangzhou, China.
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14
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McEntagart M, Williamson KA, Rainger JK, Wheeler A, Seawright A, De Baere E, Verdin H, Bergendahl LT, Quigley A, Rainger J, Dixit A, Sarkar A, López Laso E, Sanchez-Carpintero R, Barrio J, Bitoun P, Prescott T, Riise R, McKee S, Cook J, McKie L, Ceulemans B, Meire F, Temple IK, Prieur F, Williams J, Clouston P, Németh AH, Banka S, Bengani H, Handley M, Freyer E, Ross A, van Heyningen V, Marsh JA, Elmslie F, FitzPatrick DR. A Restricted Repertoire of De Novo Mutations in ITPR1 Cause Gillespie Syndrome with Evidence for Dominant-Negative Effect. Am J Hum Genet 2016; 98:981-992. [PMID: 27108798 PMCID: PMC4863663 DOI: 10.1016/j.ajhg.2016.03.018] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 03/16/2016] [Indexed: 12/19/2022] Open
Abstract
Gillespie syndrome (GS) is characterized by bilateral iris hypoplasia, congenital hypotonia, non-progressive ataxia, and progressive cerebellar atrophy. Trio-based exome sequencing identified de novo mutations in ITPR1 in three unrelated individuals with GS recruited to the Deciphering Developmental Disorders study. Whole-exome or targeted sequence analysis identified plausible disease-causing ITPR1 mutations in 10/10 additional GS-affected individuals. These ultra-rare protein-altering variants affected only three residues in ITPR1: Glu2094 missense (one de novo, one co-segregating), Gly2539 missense (five de novo, one inheritance uncertain), and Lys2596 in-frame deletion (four de novo). No clinical or radiological differences were evident between individuals with different mutations. ITPR1 encodes an inositol 1,4,5-triphosphate-responsive calcium channel. The homo-tetrameric structure has been solved by cryoelectron microscopy. Using estimations of the degree of structural change induced by known recessive- and dominant-negative mutations in other disease-associated multimeric channels, we developed a generalizable computational approach to indicate the likely mutational mechanism. This analysis supports a dominant-negative mechanism for GS variants in ITPR1. In GS-derived lymphoblastoid cell lines (LCLs), the proportion of ITPR1-positive cells using immunofluorescence was significantly higher in mutant than control LCLs, consistent with an abnormality of nuclear calcium signaling feedback control. Super-resolution imaging supports the existence of an ITPR1-lined nucleoplasmic reticulum. Mice with Itpr1 heterozygous null mutations showed no major iris defects. Purkinje cells of the cerebellum appear to be the most sensitive to impaired ITPR1 function in humans. Iris hypoplasia is likely to result from either complete loss of ITPR1 activity or structure-specific disruption of multimeric interactions.
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Affiliation(s)
- Meriel McEntagart
- Medical Genetics, St George's University Hospitals NHS Foundation Trust, Cranmer Terrace, London SW17 0RE, UK
| | - Kathleen A Williamson
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Jacqueline K Rainger
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Ann Wheeler
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Anne Seawright
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Elfride De Baere
- Center for Medical Genetics Ghent (CMGG), Ghent University Hospital, Medical Research Building (MRB), 1st Floor, Room 110.029, De Pintelaan 185, 9000 Ghent, Belgium
| | - Hannah Verdin
- Center for Medical Genetics Ghent (CMGG), Ghent University Hospital, Medical Research Building (MRB), 1st Floor, Room 110.029, De Pintelaan 185, 9000 Ghent, Belgium
| | - L Therese Bergendahl
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Alan Quigley
- Department of Radiology, Royal Hospital for Sick Children, Edinburgh EH9 1LF, UK
| | - Joe Rainger
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK; Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK
| | - Abhijit Dixit
- Clinical Genetics, Nottingham City Hospital, Hucknall Road, Nottingham NG5 1PB, UK
| | - Ajoy Sarkar
- Clinical Genetics, Nottingham City Hospital, Hucknall Road, Nottingham NG5 1PB, UK
| | - Eduardo López Laso
- Pediatric Neurology Unit, Department of Pediatrics, Reina Sofia University Hospital, Av. Menéndez Pidal s/n, 14004 Córdoba, Spain
| | - Rocio Sanchez-Carpintero
- Paediatric Neurology Unit, Department of Paediatrics, Clinica Universidad de Navarra, 31008 Pamplona, Spain
| | - Jesus Barrio
- Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain
| | - Pierre Bitoun
- Service de pédiatrie, CHU Paris Seine-Saint-Denis - Hôpital Jean Verdier Avenue du 14 juillet, 93140 Bondy, France
| | - Trine Prescott
- Department of Medical Genetics, Oslo University Hospital, 0424 Oslo, Norway
| | - Ruth Riise
- Department of Ophthalmology, Innland Hospital, 2418 Elverum, Norway
| | - Shane McKee
- Northern Ireland Regional Genetics Service, Belfast City Hospital, Belfast BT9 7AB, UK
| | - Jackie Cook
- Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Western Bank, Sheffield S10 2TH, UK
| | - Lisa McKie
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Berten Ceulemans
- Department of Neurology-Pediatric Neurology, University and University Hospital Antwerp, Antwerp 2650, Belgium
| | - Françoise Meire
- Department of Ophthalmology, Queen Fabiola Children's University Hospital, 1020 Brussels, Belgium
| | - I Karen Temple
- Human Development and Health Academic Unit, University Hospital Southampton, Tremona Road, University of Southampton, Southampton SO16 6YD, UK
| | - Fabienne Prieur
- Service Génétique, Plateau de biologie, CHU Saint Etienne, 42055 Saint Etienne cedex 2, France
| | - Jonathan Williams
- Oxford University Hospitals NHS Trust, Oxford Medical Genetics Laboratories, The Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, UK
| | - Penny Clouston
- Oxford University Hospitals NHS Trust, Oxford Medical Genetics Laboratories, The Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, UK
| | - Andrea H Németh
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford OX3 7LJ, UK
| | - Siddharth Banka
- Manchester Centre for Genomic Medicine, University of Manchester, St. Mary's Hospital, Oxford Road, Manchester M13 9WL, UK
| | - Hemant Bengani
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Mark Handley
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Elisabeth Freyer
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Allyson Ross
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Veronica van Heyningen
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Joseph A Marsh
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Frances Elmslie
- Medical Genetics, St George's University Hospitals NHS Foundation Trust, Cranmer Terrace, London SW17 0RE, UK
| | - David R FitzPatrick
- MRC Human Genetics Unit, IGMM, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK.
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15
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Tada M, Nishizawa M, Onodera O. Roles of inositol 1,4,5-trisphosphate receptors in spinocerebellar ataxias. Neurochem Int 2016; 94:1-8. [DOI: 10.1016/j.neuint.2016.01.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 01/05/2016] [Accepted: 01/22/2016] [Indexed: 10/22/2022]
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16
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Obayashi M, Stevanin G, Synofzik M, Monin ML, Duyckaerts C, Sato N, Streichenberger N, Vighetto A, Desestret V, Tesson C, Wichmann HE, Illig T, Huttenlocher J, Kita Y, Izumi Y, Mizusawa H, Schöls L, Klopstock T, Brice A, Ishikawa K, Dürr A. Spinocerebellar ataxia type 36 exists in diverse populations and can be caused by a short hexanucleotide GGCCTG repeat expansion. J Neurol Neurosurg Psychiatry 2015; 86:986-95. [PMID: 25476002 DOI: 10.1136/jnnp-2014-309153] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 11/03/2014] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Spinocerebellar ataxia 36 (SCA36) is an autosomal-dominant neurodegenerative disorder caused by a large (>650) hexanucleotide GGCCTG repeat expansion in the first intron of the NOP56 gene. The aim of this study is to clarify the prevalence, clinical and genetic features of SCA36. METHODS The expansion was tested in 676 unrelated SCA index cases and 727 controls from France, Germany and Japan. Clinical and neuropathological features were investigated in available family members. RESULTS Normal alleles ranged between 5 and 14 hexanucleotide repeats. Expansions were detected in 12 families in France (prevalence: 1.9% of all French SCAs) including one family each with Spanish, Portuguese or Chinese ancestry, in five families in Japan (1.5% of all Japanese SCAs), but were absent in German patients. All the 17 SCA36 families shared one common haplotype for a 7.5 kb pairs region flanking the expansion. While 27 individuals had typically long expansions, three affected individuals harboured small hexanucleotide expansions of 25, 30 and 31 hexanucleotide repeat-units, demonstrating that such a small expansion could cause the disease. All patients showed slowly progressive cerebellar ataxia frequently accompanied by hearing and cognitive impairments, tremor, ptosis and reduced vibration sense, with the age at onset ranging between 39 and 65 years, and clinical features were indistinguishable between individuals with short and typically long expansions. Neuropathology in a presymptomatic case disclosed that Purkinje cells and hypoglossal neurons are affected. CONCLUSIONS SCA36 is rare with a worldwide distribution. It can be caused by a short GGCCTG expansion and associates various extracerebellar symptoms.
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Affiliation(s)
- Masato Obayashi
- Department of Neurology and Neurological Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Giovanni Stevanin
- Sorbonne Universités, Université Pierre et Marie Curie - Paris 06, UMR_S1127, Paris, France Inserm, U1127, Paris, France Cnrs, UMR 7225, Paris, France AP-HP, Groupe Hospitalier Pitié-Salpêtriére, Departement of Genetics and Cytogenetics, Paris, France Ecole Pratique des Hautes Etudes, Groupe de Neurogénétique, Paris, France
| | - Matthis Synofzik
- Department of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research, Tübingen, Germany German Centre of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
| | - Marie-Lorraine Monin
- Sorbonne Universités, Université Pierre et Marie Curie - Paris 06, UMR_S1127, Paris, France Inserm, U1127, Paris, France Cnrs, UMR 7225, Paris, France
| | - Charles Duyckaerts
- Sorbonne Universités, Université Pierre et Marie Curie - Paris 06, UMR_S1127, Paris, France Inserm, U1127, Paris, France Cnrs, UMR 7225, Paris, France Laboratoire de Neuropathologie R. Escourolle, Groupe Hospitalier Pitié-Salpêtrière, 47 Blvd de l'Hôpital, Paris, France
| | - Nozomu Sato
- Department of Neurology and Neurological Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Nathalie Streichenberger
- Pathology and Biochemistry, Groupement Hospitalier Est, Hospices Civils de Lyon/Claude Bernard University, Lyon, France
| | - Alain Vighetto
- Neurology Department, Hôpital Pierre Wertheimer, Lyon, France
| | - Virginie Desestret
- Neurology D, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France Lyon Neuroscience Research Center, INSERM U1028/CNRS UMR 5292, Lyon, France Université de Lyon-Université Claude Bernard Lyon 1, Lyon, France
| | - Christelle Tesson
- Sorbonne Universités, Université Pierre et Marie Curie - Paris 06, UMR_S1127, Paris, France Inserm, U1127, Paris, France Cnrs, UMR 7225, Paris, France Ecole Pratique des Hautes Etudes, Groupe de Neurogénétique, Paris, France
| | - H-Erich Wichmann
- Institute of Epidemiology I, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany Institute of Medical Informatics, Biometry and Epidemiology, Chair of Epidemiology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Thomas Illig
- Unit for Molecular Epidemiology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
| | - Johanna Huttenlocher
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Yasushi Kita
- Neurology Service, Hyogo Brain and Heart Center at Himeji, Himeji, Hyogo, Japan
| | - Yuishin Izumi
- Department of Clinical Neuroscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - Hidehiro Mizusawa
- Department of Neurology and Neurological Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ludger Schöls
- Department of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research, Tübingen, Germany German Centre of Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
| | - Thomas Klopstock
- Department of Neurology, Friedrich-Baur-Institute, Ludwig-Maximilians-Universität München, Munich, Germany German Network for Mitochondrial Disorders (mitoNET) DZNE-German Center for Neurodegenerative Diseases, Munich, Germany German Center for Vertigo and Balance Disorders, Munich, Germany
| | - Alexis Brice
- Sorbonne Universités, Université Pierre et Marie Curie - Paris 06, UMR_S1127, Paris, France Inserm, U1127, Paris, France Cnrs, UMR 7225, Paris, France AP-HP, Groupe Hospitalier Pitié-Salpêtriére, Departement of Genetics and Cytogenetics, Paris, France
| | - Kinya Ishikawa
- Department of Neurology and Neurological Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Alexandra Dürr
- Sorbonne Universités, Université Pierre et Marie Curie - Paris 06, UMR_S1127, Paris, France Inserm, U1127, Paris, France Cnrs, UMR 7225, Paris, France AP-HP, Groupe Hospitalier Pitié-Salpêtriére, Departement of Genetics and Cytogenetics, Paris, France
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17
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Sporadic infantile-onset spinocerebellar ataxia caused by missense mutations of the inositol 1,4,5-triphosphate receptor type 1 gene. J Neurol 2015; 262:1278-84. [DOI: 10.1007/s00415-015-7705-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/08/2015] [Accepted: 03/09/2015] [Indexed: 01/01/2023]
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18
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Brown SA, Loew LM. Integration of modeling with experimental and clinical findings synthesizes and refines the central role of inositol 1,4,5-trisphosphate receptor 1 in spinocerebellar ataxia. Front Neurosci 2015; 8:453. [PMID: 25653583 PMCID: PMC4300941 DOI: 10.3389/fnins.2014.00453] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 12/22/2014] [Indexed: 12/22/2022] Open
Abstract
A suite of models was developed to study the role of inositol 1,4,5-trisphosphate receptor 1 (IP3R1) in spinocerebellar ataxias (SCAs). Several SCAs are linked to reduced abundance of IP3R1 or to supranormal sensitivity of the receptor to activation by its ligand inositol 1,4,5-trisphosphate (IP3). Detailed multidimensional models have been created to simulate biochemical calcium signaling and membrane electrophysiology in cerebellar Purkinje neurons. In these models, IP3R1-mediated calcium release is allowed to interact with ion channel response on the cell membrane. Experimental findings in mice and clinical observations in humans provide data input for the models. The SCA modeling suite helps interpret experimental results and provides suggestions to guide experiments. The models predict IP3R1 supersensitivity in SCA1 and compensatory mechanisms in SCA1, SCA2, and SCA3. Simulations explain the impact of calcium buffer proteins. Results show that IP3R1-mediated calcium release activates voltage-gated calcium-activated potassium channels in the plasma membrane. The SCA modeling suite unifies observations from experiments in a number of SCAs. The cadre of simulations demonstrates the central role of IP3R1.
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Affiliation(s)
| | - Leslie M Loew
- Richard D. Berlin Center for Cell Analysis and Modeling, University of Connecticut Health Center Farmington, CT, USA
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