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Feo F, Tramacere L, Ramat S, Govoni A, Caremani L, Grigioni G, Mei D, Falliano S, Marin F, Ferri L, Paoli A, Rinaldi M, la Marca G, Ombrone D, Procopio E, Guerrini R, Morrone A, Caciotti A. High Prevalence of GALC Gene Variants in Adults With Neurodegenerative Conditions. Eur J Neurol 2025; 32:e70206. [PMID: 40391866 PMCID: PMC12090362 DOI: 10.1111/ene.70206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2024] [Revised: 04/22/2025] [Accepted: 05/07/2025] [Indexed: 05/22/2025]
Abstract
BACKGROUND AND PURPOSE Galactocerebrosidase (GALC) deficiency causes Krabbe disease, a severe lysosomal neurodegenerative condition. Emerging evidence suggests that heterozygous GALC variants may contribute to multiple sclerosis, attention-deficit hyperactivity disorder, and synucleinopathies. We aim to investigate the potential association between GALC heterozygous variants and neurodegenerative disorders, expanding on existing literature. METHODS We screened 110 adults with symptoms shared by lysosomal storage disorders (LSDs) and common neurodegenerative diseases, such as Parkinson's disease, Lewy body dementia, and ataxias of different etiology. RESULTS We found GALC heterozygosity in this group to be notably enriched, approximately 1 in 28, compared to 1 in 150 in the general population. This led to a focus on 11 individuals with pathogenetic GALC variants and/or the disease-associated polymorphism p.(Arg184Cys). One patient, compound heterozygous for a pathogenetic variant and the p.(Arg184Cys), exhibited reduced GALC activity and a clinical course consistent with late-onset Krabbe disease. In another patient, we found the very rare synonymous variant p.(Leu238Leu) in the GALC gene. Two patients carrying known pathogenetic GALC variants were also heterozygous for other known pathogenetic variants in other LSD-associated genes, including HEXB (Sandhoff disease) and GUSB (mucopolysaccharidosis VI). All the 11 patients in the selected cohort exhibited symptoms similar to atypical Parkinson's disease and a high frequency of leukoencephalopathy, inflammatory disorders, and cancer. CONCLUSIONS Our findings indicate a possible connection between the patients' neurodegenerative conditions and GALC defects, including disease-associated polymorphisms and silent variants. Additional genetic alterations affecting sphingolipid and glycosaminoglycan metabolism may act as contributing factors.
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Affiliation(s)
- Federica Feo
- Department of Neuroscience, Pharmacology and Child HealthUniversity of FlorenceFlorenceItaly
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Luciana Tramacere
- USL Toscana Centro, Neurology UnitOspedale San Giovanni di DioFlorenceItaly
| | | | | | | | - Giulia Grigioni
- Department of Neuroscience, Pharmacology and Child HealthUniversity of FlorenceFlorenceItaly
- Parkinson UnitAOU CareggiFlorenceItaly
| | - Davide Mei
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Silvia Falliano
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Francesca Marin
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Lorenzo Ferri
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Antonella Paoli
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Marina Rinaldi
- Department of Neuroscience, Pharmacology and Child HealthUniversity of FlorenceFlorenceItaly
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Giancarlo la Marca
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceItaly
| | - Daniela Ombrone
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Elena Procopio
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Renzo Guerrini
- Department of Neuroscience, Pharmacology and Child HealthUniversity of FlorenceFlorenceItaly
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Amelia Morrone
- Department of Neuroscience, Pharmacology and Child HealthUniversity of FlorenceFlorenceItaly
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
| | - Anna Caciotti
- Neuroscience and Medical Genetics DepartmentMeyer Children's Hospital IRCCSFlorenceItaly
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2
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Somerville EN, Krohn L, Senkevich K, Yu E, Ahmad J, Asayesh F, Ruskey JA, Spiegelman D, Fahn S, Waters C, Sardi SP, Alcalay RN, Gan-Or Z. Genome-Wide Association Study of Glucocerebrosidase Activity Modifiers. Mol Neurobiol 2025:10.1007/s12035-025-04996-1. [PMID: 40299299 DOI: 10.1007/s12035-025-04996-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 04/23/2025] [Indexed: 04/30/2025]
Abstract
One of the most common genetic risk factors for Parkinson's disease (PD) is variants in GBA1, which encodes the lysosomal enzyme glucocerebrosidase (GCase). GCase deficiency has been associated with an increased PD risk, but not all individuals with low GCase activity are carriers of GBA1 mutations, suggesting other factors may be acting as modifiers. We aimed to discover common variants associated with GCase activity, as well as replicate previously reported associations, by performing a genome-wide association study using two independent cohorts: a Columbia University cohort consisting of 697 PD cases and 347 controls and the Parkinson's Progression Markers Initiative (PPMI) cohort consisting of 357 PD cases and 163 controls. As expected, GBA1 variants have the strongest association with decreased activity, led by N370S (beta = - 4.36, se = 0.32, p = 5.05e - 43). We also identify a novel association in the GAA locus (encoding for acid alpha-glucosidase, beta = - 0.96, se = 0.17, p = 5.23e - 09) that may be the result of an interaction between GCase and acid alpha-glucosidase based on various interaction analyses. Lastly, we show that several PD-risk loci are potentially associated with GCase activity. Further research will be needed to replicate and validate our findings and to uncover the functional connection between acid alpha-glucosidase and GCase.
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Affiliation(s)
- Emma N Somerville
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Lynne Krohn
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Konstantin Senkevich
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada
- Department of Neurology and Neurosurgery, McGill University, 1033 Pine Avenue WestRoom 312, Ludmer PavilionMontréal, QC, H3 A 1 A1, Canada
| | - Eric Yu
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Jamil Ahmad
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada
- Department of Neurology and Neurosurgery, McGill University, 1033 Pine Avenue WestRoom 312, Ludmer PavilionMontréal, QC, H3 A 1 A1, Canada
| | - Farnaz Asayesh
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada
- Department of Neurology and Neurosurgery, McGill University, 1033 Pine Avenue WestRoom 312, Ludmer PavilionMontréal, QC, H3 A 1 A1, Canada
| | - Jennifer A Ruskey
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada
- Department of Neurology and Neurosurgery, McGill University, 1033 Pine Avenue WestRoom 312, Ludmer PavilionMontréal, QC, H3 A 1 A1, Canada
| | - Dan Spiegelman
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada
- Department of Neurology and Neurosurgery, McGill University, 1033 Pine Avenue WestRoom 312, Ludmer PavilionMontréal, QC, H3 A 1 A1, Canada
| | - Stanley Fahn
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
| | - Cheryl Waters
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
| | - S Pablo Sardi
- Rare and Neurological Diseases Therapeutic Area, Sanofi, Cambridge, MA, USA
| | - Roy N Alcalay
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
- Taub Institute for Research On Alzheimer's Disease and the Aging Brain, Columbia University Medical Center, New York, NY, USA
| | - Ziv Gan-Or
- The Neuro (Montréal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada.
- Department of Human Genetics, McGill University, Montréal, QC, Canada.
- Department of Neurology and Neurosurgery, McGill University, 1033 Pine Avenue WestRoom 312, Ludmer PavilionMontréal, QC, H3 A 1 A1, Canada.
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3
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Zhang H, Cao F, Yu J, Liang Y, Wu Y. Investigating plasma lipid profiles in association with Parkinson's disease risk. NPJ Parkinsons Dis 2025; 11:99. [PMID: 40295545 PMCID: PMC12038023 DOI: 10.1038/s41531-025-00955-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 04/08/2025] [Indexed: 04/30/2025] Open
Abstract
Parkinson's Disease (PD) is associated with lipid metabolic disturbances, but the specific roles of lipids in its pathogenesis are unclear. This Mendelian Randomization (MR) study utilized GWAS data and IVW methods to investigate plasma lipids and PD risk. The genetic predispositions to altered levels of triacylglycerols (TAGs), diacylglycerols (DAGs), phosphatidylcholines (PCs), and phosphatidylethanolamines (PEs) are associated with an increased risk of PD, while the genetic predispositions to sphingomyelin (SM) and lysophosphatidylcholines (LPCs) are associated with a reduced risk of PD. Further research is needed to establish the biological mechanisms underlying these relationships.
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Affiliation(s)
- Houwen Zhang
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Xinhua Hospital of Zhejiang Province, Hangzhou, China
| | - Fangzheng Cao
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Xinhua Hospital of Zhejiang Province, Hangzhou, China
| | - Jialin Yu
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Xinhua Hospital of Zhejiang Province, Hangzhou, China
| | - Yu Liang
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Xinhua Hospital of Zhejiang Province, Hangzhou, China
| | - You Wu
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Xinhua Hospital of Zhejiang Province, Hangzhou, China.
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4
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Erskine D, Bronowska AK, Outeiro TF, Attems J. Sphingolipidoses: expanding the spectrum of α-synucleinopathies. J Neural Transm (Vienna) 2025:10.1007/s00702-025-02925-z. [PMID: 40244388 DOI: 10.1007/s00702-025-02925-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2025] [Accepted: 04/03/2025] [Indexed: 04/18/2025]
Abstract
Although α-synuclein pathology is typically associated with Lewy body diseases and multiple systems atrophy, increasing evidence indicates that it also occurs in a group of lysosomal storage disorders termed sphingolipidoses caused by the incomplete degradation, and subsequent accumulation, of a class of lipids termed sphingolipids. Notably, a number of genes that cause sphingolipidoses are also risk genes for Lewy body diseases, suggesting aetiological links between these distinct disorders. In the present review, we discuss the sphingolipidoses in which α-synuclein pathology has been reported: Gaucher disease, Krabbe disease, metachromatic leukodystrophy, Tay-Sachs disease and Anderson-Fabry disease, and describe the characteristic clinical and pathological features of these disorders, in addition to the evidence suggesting α-synuclein pathology occurs in these disorders. Finally, we evaluate the pathological mechanisms that underlie these rare disorders, with particular attention to how the enzymatic deficiency, substrate accumulation, or both, could contribute to the genesis of α-synuclein pathology and the implications of this for Lewy body diseases.
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Affiliation(s)
- Daniel Erskine
- Metabolic Neurodegeneration Laboratory, Newcastle University, Newcastle, UK.
- Translational and Clinical Research Institute, Newcastle University, Newcastle, UK.
| | - Agnieszka K Bronowska
- Chemistry - School of Natural and Environmental Sciences, Newcastle University, Newcastle, UK
| | - Tiago F Outeiro
- Translational and Clinical Research Institute, Newcastle University, Newcastle, UK
- DZNE, Gottingen, Germany
- University Medical Center Gottingen, Newcastle, Germany
| | - Johannes Attems
- Translational and Clinical Research Institute, Newcastle University, Newcastle, UK
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5
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Rossi M, Schaake S, Usnich T, Boehm J, Steffen N, Schell N, Krüger C, Gül‐Demirkale T, Bahr N, Kleinz T, Madoev H, Laabs B, Gan‐Or Z, Alcalay RN, Lohmann K, Klein C. Classification and Genotype-Phenotype Relationships of GBA1 Variants: MDSGene Systematic Review. Mov Disord 2025; 40:605-618. [PMID: 39927608 PMCID: PMC12006889 DOI: 10.1002/mds.30141] [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: 11/13/2024] [Revised: 01/07/2025] [Accepted: 01/23/2025] [Indexed: 02/11/2025] Open
Abstract
Depending on zygosity and the specific change, different variants in the GBA1 gene can cause Parkinson's disease (PD, PARK-GBA1) with reduced penetrance, act as genetic risk factors for PD or parkinsonism, and/or lead to Gaucher's disease (GD). This MDSGene systematic literature review covers 27,963 patients carrying GBA1 variants from 1082 publications with 794 variants, including 13,342 patients with PD or other forms of parkinsonism. It provides a comprehensive overview of demographic, clinical, and genetic findings from an ethnically diverse sample originating from 82 countries across five continents. The most frequent pathogenic or likely pathogenic variants were "N409S" (aka "N370S"; dominating among Jewish and Whites), and "L483P" (aka "L444P"; dominating among Asians and Hispanics), whereas the most common coding risk variants were "E365K" (E326K), and "T408M" (T369M) (both common among Whites). A novel finding is that early-onset PD patients were predominantly of Asian ethnicity, whereas late-onset PD patients were mainly of White ethnicity. Motor cardinal features were similar between PD patients and other forms of parkinsonism, whereas motor complications and non-motor symptoms were more frequently reported in PD patients carrying "severe" variants than in those with "risk" or "mild" variants. Cognitive decline was reported in most patients after surgical treatment, despite achieving a beneficial motor function response. Most GD patients developing PD harbored the "N409S" variant, were of Ashkenazi Jewish ethnicity, and showed a positive response to chronic levodopa treatment. With this review, we start to fill the gaps regarding genotype-phenotype correlations in GBA1 variant carriers, especially concerning PD. © 2025 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Malco Rossi
- Servicio de Movimientos Anormales, Departamento de NeurologíaFleniBuenos AiresArgentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Buenos AiresArgentina
| | - Susen Schaake
- Institute of NeurogeneticsUniversity of LübeckLübeckGermany
| | - Tatiana Usnich
- Institute of NeurogeneticsUniversity of LübeckLübeckGermany
| | | | - Nina Steffen
- Institute of NeurogeneticsUniversity of LübeckLübeckGermany
| | | | - Clara Krüger
- Institute of NeurogeneticsUniversity of LübeckLübeckGermany
| | - Tuğçe Gül‐Demirkale
- Neurodegeneration Research Laboratory (NDAL), Research Center for Translational Medicine (KUTTAM), School of MedicineKoç UniversityIstanbulTurkey
| | - Natascha Bahr
- Institute of NeurogeneticsUniversity of LübeckLübeckGermany
| | - Teresa Kleinz
- Institute of NeurogeneticsUniversity of LübeckLübeckGermany
| | - Harutyun Madoev
- Institute of Medical Biometry and StatisticsUniversity of LübeckLübeckGermany
| | - Björn‐Hergen Laabs
- Institute of Medical Biometry and StatisticsUniversity of LübeckLübeckGermany
| | - Ziv Gan‐Or
- Department of Neurology and NeurosurgeryMcGill UniversityMontrealQuebecCanada
- Clinical Research Unit, The Neuro (Montreal Neurological Institute‐Hospital)McGill UniversityMontrealQuebecCanada
- Department of Human GeneticsMcGill UniversityMontrealQuebecCanada
| | - Roy N. Alcalay
- Division of Movement DisordersTel Aviv Sourasky Medical CenterTel AvivIsrael
- Columbia University Irving Medical CenterNew York CityNew YorkUSA
| | - Katja Lohmann
- Institute of NeurogeneticsUniversity of LübeckLübeckGermany
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Carrillo F, Ghirimoldi M, Fortunato G, Palomba NP, Ianiro L, De Giorgis V, Khoso S, Giloni T, Pietracupa S, Modugno N, Barberis E, Manfredi M, Esposito T. Multiomics approach identifies dysregulated lipidomic and proteomic networks in Parkinson's disease patients mutated in TMEM175. NPJ Parkinsons Dis 2025; 11:23. [PMID: 39856101 PMCID: PMC11760379 DOI: 10.1038/s41531-024-00853-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 12/09/2024] [Indexed: 01/27/2025] Open
Abstract
Parkinson's disease (PD) represents one of the most frequent neurodegenerative disorders for which clinically useful biomarkers remain to be identified and validated. Here, we adopted an untargeted omics approach to disclose lipidomic, metabolomic and proteomic alterations in plasma and in dermal fibroblasts of PD patients carrying mutations in TMEM175 gene. We revealed a wide dysregulation of lysosome, autophagy, and mitochondrial pathways in these patients, supporting a role of this channel in regulating these cellular processes. The most significant altered lipid classes were Fatty acyls, Glycerophospholipids and Phosphosphingolipids. The plasma level of Phosphatidylcholines (PC) and Phosphatidylinositol (PI) 34:1 significantly correlated with an earlier age at onset of the disease in TMEM175 patients (p = 0.008; p = 0.006). In plasma we also observed altered amino acids metabolic pathways in PD patients. We highlighted that increased level of L-glutamate strongly correlated (p < 0.001) with the severity of motor and non-motor symptoms in PD_TMEM175 patients. In dermal fibroblasts, we disclosed alterations of proteins involved in lipids biosynthesis (PAG15, PP4P1, GALC, FYV1, PIGO, PGPS1, PLPP1), in the insulin pathway (IGF2R), in mitochondrial metabolism (ACD10, ACD11, ACADS) and autophagy (RAB7L). Interestingly, we quantified 43 lysosomal or lysosomal-related proteins, which were differentially modulated between TMEM175 patients and controls. Integrative correlation analysis of proteome and lipidome of PD_TMEM175 cellular models identified a strong positive correlation of 13 proteins involved in biosynthetic processes with PC and Ceramides. Altogether, these data provide novel insights into the molecular and metabolic alterations underlying TMEM175 mutations and may be relevant for PD prediction, diagnosis and treatment.
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Affiliation(s)
- Federica Carrillo
- Institute of Genetics and Biophysics "Adriano Buzzati-Traverso", National Research Council, Naples, Italy
| | - Marco Ghirimoldi
- Biological Mass Spectrometry Lab, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Giorgio Fortunato
- Institute of Genetics and Biophysics "Adriano Buzzati-Traverso", National Research Council, Naples, Italy
| | | | | | - Veronica De Giorgis
- Biological Mass Spectrometry Lab, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Shahzaib Khoso
- Biological Mass Spectrometry Lab, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
- Center for Translational Research on Autoimmune and Allergic Diseases, University of Piemonte Orientale, Novara, Italy
| | | | - Sara Pietracupa
- IRCCS INM Neuromed, Pozzilli, Italy
- Department of Human Neuroscience, Sapienza University of Rome, Piazzale Aldo Moro, Italy
| | | | - Elettra Barberis
- Center for Translational Research on Autoimmune and Allergic Diseases, University of Piemonte Orientale, Novara, Italy
- Department of Sciences and Technological Innovation, University of Piemonte Orientale, Alessandria, Italy
| | - Marcello Manfredi
- Biological Mass Spectrometry Lab, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
- IRCCS Policlinico San Donato, Institute of Molecular and Translational Cardiology, Milan, Italy
| | - Teresa Esposito
- Institute of Genetics and Biophysics "Adriano Buzzati-Traverso", National Research Council, Naples, Italy.
- IRCCS INM Neuromed, Pozzilli, Italy.
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7
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Knab F, Guaitoli G, Jarboui MA, von Zweydorf F, Isik FB, Klose F, Rajkumar AP, Gasser T, Gloeckner CJ. The cellular and extracellular proteomic signature of human dopaminergic neurons carrying the LRRK2 G2019S mutation. Front Neurosci 2024; 18:1502246. [PMID: 39726830 PMCID: PMC11669673 DOI: 10.3389/fnins.2024.1502246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2024] [Accepted: 11/21/2024] [Indexed: 12/28/2024] Open
Abstract
Background Extracellular vesicles are easily accessible in various biofluids and allow the assessment of disease-related changes in the proteome. This has made them a promising target for biomarker studies, especially in the field of neurodegeneration where access to diseased tissue is very limited. Genetic variants in the LRRK2 gene have been linked to both familial and sporadic forms of Parkinson's disease. With LRRK2 inhibitors entering clinical trials, there is an unmet need for biomarkers that reflect LRRK2-specific pathology and target engagement. Methods In this study, we used induced pluripotent stem cells derived from a patient with Parkinson's disease carrying the LRRK2 G2019S mutation and an isogenic gene-corrected control to generate human dopaminergic neurons. We isolated extracellular vesicles and neuronal cell lysates and characterized their proteomic signature using data-independent acquisition proteomics. Then, we performed differential expression analysis to identify dysregulated proteins in the mutated line. We used Metascape and gene ontology enrichment analysis on the dysregulated proteomes to identify changes in associated functional networks. Results We identified 595 significantly differentially regulated proteins in extracellular vesicles and 3,205 in cell lysates. We visualized functionally relevant protein-protein interaction networks and identified key regulators within the dysregulated proteomes. Using gene ontology, we found a close association with biological processes relevant to neurodegeneration and Parkinson's disease. Finally, we focused on proteins that were dysregulated in both the extracellular and cellular proteomes. We provide a list of ten biomarker candidates that are functionally relevant to neurodegeneration and linked to LRRK2-associated pathology, for example, the sonic hedgehog signaling molecule, a protein that has tightly been linked to LRRK2-related disruption of cilia function. Conclusion In conclusion, we characterized the cellular and extracellular proteome of dopaminergic neurons carrying the LRRK2 G2019S mutation and proposed an experimentally based list of biomarker candidates for future studies.
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Affiliation(s)
- Felix Knab
- Hertie Institute for Clinical Brain Research, Department of Neurodegeneration, University of Tübingen, Tübingen, Germany
| | | | - Mohamed Ali Jarboui
- Core Facility for Medical Proteomics, Institute for Ophthalmic Research, Center for Ophthalmology, University of Tübingen, Tübingen, Germany
| | | | - Fatma Busra Isik
- Institute of Mental Health, Mental Health and Clinical Neurosciences Academic Unit, University of Nottingham, Nottingham, United Kingdom
| | - Franziska Klose
- Core Facility for Medical Proteomics, Institute for Ophthalmic Research, Center for Ophthalmology, University of Tübingen, Tübingen, Germany
| | - Anto Praveen Rajkumar
- Core Facility for Medical Proteomics, Institute for Ophthalmic Research, Center for Ophthalmology, University of Tübingen, Tübingen, Germany
| | - Thomas Gasser
- Hertie Institute for Clinical Brain Research, Department of Neurodegeneration, University of Tübingen, Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
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8
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Saldivia N, Heller G, Zelada D, Whitehair J, Venkat N, Konjeti A, Savitzky R, Samano S, Simchuk D, van Breemen R, Givogri MI, Bongarzone ER. Deficiency of galactosyl-ceramidase in adult oligodendrocytes worsens disease severity during chronic experimental allergic encephalomyelitis. Mol Ther 2024; 32:3163-3176. [PMID: 38937968 PMCID: PMC11403238 DOI: 10.1016/j.ymthe.2024.06.035] [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: 12/14/2023] [Revised: 04/24/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024] Open
Abstract
Galactosyl-ceramidase (GALC) is a ubiquitous lysosomal enzyme crucial for the correct myelination of the mammalian nervous system during early postnatal development. However, the physiological consequence of GALC deficiency in the adult brain remains unknown. In this study, we found that mice with conditional ablation of GALC activity in post-myelinating oligodendrocytes were lethally sensitized when challenged with chronic experimental allergic encephalomyelitis (EAE), in contrast with the non-lethal dysmyelination observed in Galc-ablated mice without the EAE challenge. Mechanistically, we found strong inflammatory demyelination without remyelination and an impaired fusion of lysosomes and autophagosomes with accumulation of myelin debris after a transcription factor EB-dependent increase in the lysosomal autophagosome flux. These results indicate that the physiological impact of GALC deficiency is highly influenced by the cell context (oligodendroglial vs. global expression), the presence of inflammation, and the developmental time when it happens (pre-myelination vs. post-myelination). We conclude that Galc expression in adult oligodendrocytes is crucial for the maintenance of adult central myelin and to decrease vulnerability to additional demyelinating insults.
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Affiliation(s)
- Natalia Saldivia
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Gregory Heller
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Diego Zelada
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Jason Whitehair
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Nikhil Venkat
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Ashna Konjeti
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Reina Savitzky
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Shayla Samano
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Daniel Simchuk
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | | | - Maria I Givogri
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Ernesto R Bongarzone
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
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Mächtel R, Dobert J, Hehr U, Weiss A, Kettwig M, Laugwitz L, Groeschel S, Schmidt M, Arnold P, Regensburger M, Zunke F. Late-onset Krabbe disease presenting as spastic paraplegia - implications of GCase and CTSB/D. Ann Clin Transl Neurol 2024; 11:1715-1731. [PMID: 38837642 PMCID: PMC11251474 DOI: 10.1002/acn3.52078] [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: 10/18/2023] [Revised: 04/09/2024] [Accepted: 04/12/2024] [Indexed: 06/07/2024] Open
Abstract
OBJECTIVE Krabbe disease (KD) is a multisystem neurodegenerative disorder with severe disability and premature death, mostly with an infancy/childhood onset. In rare cases of late-onset phenotypes, symptoms are often milder and difficult to diagnose. We here present a translational approach combining diagnostic and biochemical analyses of a male patient with a progressive gait disorder starting at the age of 44 years, with a final diagnosis of late-onset KD (LOKD). METHODS Additionally to cerebral MRI, protein structural analyses of the β-galactocerebrosidase protein (GALC) were performed. Moreover, expression, lysosomal localization, and activities of β-glucocerebrosidase (GCase), cathepsin B (CTSB), and cathepsin D (CTSD) were analyzed in leukocytes, fibroblasts, and lysosomes of fibroblasts. RESULTS Exome sequencing revealed biallelic likely pathogenic variants: GALC exons 11-17: 33 kb deletion; exon 4: missense variant (c.334A>G, p.Thr112Ala). We detected a reduced GALC activity in leukocytes and fibroblasts. While histological KD phenotypes were absent in fibroblasts, they showed a significantly decreased activities of GCase, CTSB, and CTSD in lysosomal fractions, while expression levels were unaffected. INTERPRETATION The presented LOKD case underlines the age-dependent appearance of a mildly pathogenic GALC variant and its interplay with other lysosomal proteins. As GALC malfunction results in reduced ceramide levels, we assume this to be causative for the here described decrease in CTSB and CTSD activity, potentially leading to diminished GCase activity. Hence, we emphasize the importance of a functional interplay between the lysosomal enzymes GALC, CTSB, CTSD, and GCase, as well as between their substrates, and propose their conjoined contribution in KD pathology.
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Affiliation(s)
- Rebecca Mächtel
- Department of Molecular NeurologyUniversity Hospital Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU)ErlangenGermany
| | - Jan‐Philipp Dobert
- Department of Molecular NeurologyUniversity Hospital Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU)ErlangenGermany
| | - Ute Hehr
- Center for Human GeneticsRegensburgGermany
| | - Alexander Weiss
- Department of Molecular NeurologyUniversity Hospital Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU)ErlangenGermany
| | - Matthias Kettwig
- Department of Pediatrics and Pediatric NeurologyUniversity Medical Center Göttingen, Georg August University GöttingenGöttingenGermany
| | - Lucia Laugwitz
- Department of Pediatric NeurologyUniversity Children's Hospital TübingenTübingenGermany
| | - Samuel Groeschel
- Department of Pediatric NeurologyUniversity Children's Hospital TübingenTübingenGermany
| | | | - Philipp Arnold
- Institute of Functional and Clinical AnatomyFAUErlangenGermany
| | - Martin Regensburger
- Department of Molecular NeurologyUniversity Hospital Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU)ErlangenGermany
- Department of Stem Cell BiologyFAUErlangenGermany
- Deutsches Zentrum Immuntherapie (DZI)University Hospital ErlangenErlangenGermany
| | - Friederike Zunke
- Department of Molecular NeurologyUniversity Hospital Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU)ErlangenGermany
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10
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Somerville EN, Krohn L, Senkevich K, Yu E, Ahmad J, Asayesh F, Ruskey JA, Speigelman D, Fahn S, Waters C, Sardi SP, Alcalay RN, Gan-Or Z. Genome-wide association study of glucocerebrosidase activity modifiers. RESEARCH SQUARE 2024:rs.3.rs-4425669. [PMID: 38883744 PMCID: PMC11177962 DOI: 10.21203/rs.3.rs-4425669/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
One of the most common genetic risk factors for Parkinson's disease (PD) are variants in GBA1, which encodes the lysosomal enzyme glucocerebrosidase (GCase). GCase deficiency has been associated with an increased PD risk, but not all individuals with low GCase activity are carriers of GBA1 mutations, suggesting other factors may be acting as modifiers. We aimed to discover common variants associated with GCase activity, as well as replicate previously reported associations, by performing a genome-wide association study using two independent cohorts: a Columbia University cohort consisting of 697 PD cases and 347 controls and the Parkinson's Progression Markers Initiative (PPMI) cohort consisting of 357 PD cases and 163 controls. As expected, GBA1 variants have the strongest association with decreased activity, led by p.N370S (beta = -4.36, se = 0.32, p = 5.05e-43). We also identify a novel association in the GAA locus (encoding for acid alpha-glucosidase, beta = -0.96, se = 0.17, p = 5.23e-09) that may be the result of an interaction between GCase and acid alpha-glucosidase based on various interaction analyses. Lastly, we show that several PD-risk loci are potentially associated with GCase activity. Further research will be needed to replicate and validate our findings and to uncover the functional connection between acid alpha-glucosidase and GCase.
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Affiliation(s)
- Emma N Somerville
- The Neuro (Montréal Neurological Institute-Hospital), McGill University
| | - Lynne Krohn
- The Neuro (Montréal Neurological Institute-Hospital), McGill University
| | | | - Eric Yu
- The Neuro (Montréal Neurological Institute-Hospital), McGill University
| | - Jamil Ahmad
- The Neuro (Montréal Neurological Institute-Hospital), McGill University
| | - Farnaz Asayesh
- The Neuro (Montréal Neurological Institute-Hospital), McGill University
| | - Jennifer A Ruskey
- The Neuro (Montréal Neurological Institute-Hospital), McGill University
| | - Dan Speigelman
- The Neuro (Montréal Neurological Institute-Hospital), McGill University
| | - Stanley Fahn
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center
| | - Cheryl Waters
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center
| | - S Pablo Sardi
- Rare and Neurological Diseases Therapeutic Area, Sanofi
| | - Roy N Alcalay
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center
| | - Ziv Gan-Or
- The Neuro (Montréal Neurological Institute-Hospital), McGill University
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11
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Matsui H, Takahashi R. Current trends in basic research on Parkinson's disease: from mitochondria, lysosome to α-synuclein. J Neural Transm (Vienna) 2024; 131:663-674. [PMID: 38613675 PMCID: PMC11192670 DOI: 10.1007/s00702-024-02774-2] [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: 11/04/2023] [Accepted: 03/28/2024] [Indexed: 04/15/2024]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by progressive degeneration of dopaminergic neurons in the substantia nigra and other brain regions. A key pathological feature of PD is the abnormal accumulation of α-synuclein protein within affected neurons, manifesting as Lewy bodies and Lewy neurites. Despite extensive research efforts spanning several decades, the underlying mechanisms of PD and disease-modifying therapies remain elusive. This review provides an overview of current trends in basic research on PD. Initially, it discusses the involvement of mitochondrial dysfunction in the pathogenesis of PD, followed by insights into the role of lysosomal dysfunction and disruptions in the vesicular transport system. Additionally, it delves into the pathological and physiological roles of α-synuclein, a crucial protein associated with PD pathophysiology. Overall, the purpose of this review is to comprehend the current state of elucidating the intricate mechanisms underlying PD and to outline future directions in understanding this disease.
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Affiliation(s)
- Hideaki Matsui
- Department of Neuroscience of Disease, Brain Research Institute, Niigata University, 1-757, Asahimachidori, Chuoku, Niigata, 951-8585, Japan.
| | - Ryosuke Takahashi
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto University, 54, Shogoin Kawahara-cho, Sakyoku, Kyoto, 606-8507, Japan.
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12
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Yu E, Larivière R, Thomas RA, Liu L, Senkevich K, Rahayel S, Trempe JF, Fon EA, Gan-Or Z. Machine learning nominates the inositol pathway and novel genes in Parkinson's disease. Brain 2024; 147:887-899. [PMID: 37804111 PMCID: PMC10907089 DOI: 10.1093/brain/awad345] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/01/2023] [Accepted: 09/24/2023] [Indexed: 10/08/2023] Open
Abstract
There are 78 loci associated with Parkinson's disease in the most recent genome-wide association study (GWAS), yet the specific genes driving these associations are mostly unknown. Herein, we aimed to nominate the top candidate gene from each Parkinson's disease locus and identify variants and pathways potentially involved in Parkinson's disease. We trained a machine learning model to predict Parkinson's disease-associated genes from GWAS loci using genomic, transcriptomic and epigenomic data from brain tissues and dopaminergic neurons. We nominated candidate genes in each locus and identified novel pathways potentially involved in Parkinson's disease, such as the inositol phosphate biosynthetic pathway (INPP5F, IP6K2, ITPKB and PPIP5K2). Specific common coding variants in SPNS1 and MLX may be involved in Parkinson's disease, and burden tests of rare variants further support that CNIP3, LSM7, NUCKS1 and the polyol/inositol phosphate biosynthetic pathway are associated with the disease. Functional studies are needed to further analyse the involvements of these genes and pathways in Parkinson's disease.
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Affiliation(s)
- Eric Yu
- Department of Human Genetics, McGill University, Montreal, Quebec H3A 0G4, Canada
- The Neuro (Montreal Neurological Institute-Hospital), Montreal, Quebec H3A 2B4, Canada
| | - Roxanne Larivière
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A 0G4, Canada
| | - Rhalena A Thomas
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A 0G4, Canada
- Early Drug Discovery Unit (EDDU), Montreal Neurological Institute-Hospital (The Neuro), Montreal, Quebec H3A 2B4, Canada
| | - Lang Liu
- Department of Human Genetics, McGill University, Montreal, Quebec H3A 0G4, Canada
- The Neuro (Montreal Neurological Institute-Hospital), Montreal, Quebec H3A 2B4, Canada
| | - Konstantin Senkevich
- The Neuro (Montreal Neurological Institute-Hospital), Montreal, Quebec H3A 2B4, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A 0G4, Canada
| | - Shady Rahayel
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Quebec H4J 1C5, Canada
- Department of Medicine, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Jean-François Trempe
- Department of Pharmacology and Therapeutics and Centre de Recherche en Biologie Structurale, McGill University, Montreal, Quebec H3A 0G4, Canada
| | - Edward A Fon
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A 0G4, Canada
- Early Drug Discovery Unit (EDDU), Montreal Neurological Institute-Hospital (The Neuro), Montreal, Quebec H3A 2B4, Canada
| | - Ziv Gan-Or
- Department of Human Genetics, McGill University, Montreal, Quebec H3A 0G4, Canada
- The Neuro (Montreal Neurological Institute-Hospital), Montreal, Quebec H3A 2B4, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A 0G4, Canada
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13
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Senkevich K, Beletskaia M, Dworkind A, Yu E, Ahmad J, Ruskey JA, Asayesh F, Spiegelman D, Fahn S, Waters C, Monchi O, Dauvilliers Y, Dupré N, Greenbaum L, Hassin-Baer S, Nagornov I, Tyurin A, Miliukhina I, Timofeeva A, Emelyanov A, Trempe JF, Zakharova E, Alcalay RN, Pchelina S, Gan-Or Z. Association of Rare Variants in ARSA with Parkinson's Disease. Mov Disord 2023; 38:1806-1812. [PMID: 37381728 PMCID: PMC10615669 DOI: 10.1002/mds.29521] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/25/2023] [Accepted: 06/12/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Several lysosomal genes are associated with Parkinson's disease (PD), yet the association between PD and ARSA remains unclear. OBJECTIVES To study rare ARSA variants in PD. METHODS To study rare ARSA variants (minor allele frequency < 0.01) in PD, we performed burden analyses in six independent cohorts with 5801 PD patients and 20,475 controls, followed by a meta-analysis. RESULTS We found evidence for associations between functional ARSA variants and PD in four cohorts (P ≤ 0.05 in each) and in the meta-analysis (P = 0.042). We also found an association between loss-of-function variants and PD in the United Kingdom Biobank cohort (P = 0.005) and in the meta-analysis (P = 0.049). These results should be interpreted with caution as no association survived multiple comparisons correction. Additionally, we describe two families with potential co-segregation of ARSA p.E382K and PD. CONCLUSIONS Rare functional and loss-of-function ARSA variants may be associated with PD. Further replications in large case-control/familial cohorts are required. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Konstantin Senkevich
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
| | - Mariia Beletskaia
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | - Aliza Dworkind
- Department of Physiology, McGill University, Montréal, QC, Canada
| | - Eric Yu
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Jamil Ahmad
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
| | - Jennifer A. Ruskey
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
| | - Farnaz Asayesh
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Dan Spiegelman
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
| | - Stanley Fahn
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, NY, USA
| | - Cheryl Waters
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, NY, USA
| | - Oury Monchi
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
- Department of Clinical Neurosciences and Department of Radiology, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, T2N 4N1 Canada
| | - Yves Dauvilliers
- National Reference Center for Narcolepsy, Sleep Unit, Department of Neurology, Gui-de-Chauliac Hospital, CHU Montpellier, University of Montpellier, Montpellier, France
| | - Nicolas Dupré
- Division of Neurosciences, CHU de Québec, Université Laval, Quebec City, Quebec, Canada
- Department of Medicine, Faculty of Medicine, Université Laval, Québec, Canada
| | - Lior Greenbaum
- The Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sharon Hassin-Baer
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Movement Disorders Institute, Department of Neurology, Sheba Medical Center, Tel Hashomer, Israel
| | - Ilya Nagornov
- Research Centre for Medical Genetics, Moscow, Russia
| | - Alexandr Tyurin
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | | | - Alla Timofeeva
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | - Anton Emelyanov
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | - Jean-François Trempe
- Department of Pharmacology and Therapeutics and Centre de Recherche en Biologie Structurale, McGill University, Montreal H3A 1A3, Canada
| | | | - Roy N. Alcalay
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, NY, USA
- Division of Movement Disorders, Tel Aviv Sourasky Medical Center; Tel Aviv, Israel
| | - Sofya Pchelina
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | - Ziv Gan-Or
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
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14
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Senkevich K, Beletskaia M, Dworkind A, Yu E, Ahmad J, Ruskey JA, Asayesh F, Spiegelman D, Fahn S, Waters C, Monchi O, Dauvilliers Y, Dupré N, Greenbaum L, Hassin-Baer S, Nagornov I, Tyurin A, Miliukhina I, Timofeeva A, Emelyanov A, Zakharova E, Alcalay RN, Pchelina S, Gan-Or Z. Association of rare variants in ARSA with Parkinson's disease. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.03.08.23286773. [PMID: 36993451 PMCID: PMC10055435 DOI: 10.1101/2023.03.08.23286773] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Background Several lysosomal genes are associated with Parkinson's disease (PD), yet the association between PD and ARSA , which encodes for the enzyme arylsulfatase A, remains controversial. Objectives To evaluate the association between rare ARSA variants and PD. Methods To study possible association of rare variants (minor allele frequency<0.01) in ARSA with PD, we performed burden analyses in six independent cohorts with a total of 5,801 PD patients and 20,475 controls, using optimized sequence Kernel association test (SKAT-O), followed by a meta-analysis. Results We found evidence for an association between functional ARSA variants and PD in four independent cohorts (P≤0.05 in each) and in the meta-analysis (P=0.042). We also found an association between loss-of-function variants and PD in the UKBB cohort (P=0.005) and in the meta-analysis (P=0.049). However, despite replicating in four independent cohorts, these results should be interpreted with caution as no association survived correction for multiple comparisons. Additionally, we describe two families with potential co-segregation of the ARSA variant p.E384K and PD. Conclusions Rare functional and loss-of-function ARSA variants may be associated with PD. Further replication in large case-control cohorts and in familial studies is required to confirm these associations.
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Affiliation(s)
- Konstantin Senkevich
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
| | - Mariia Beletskaia
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | - Aliza Dworkind
- Department of Physiology, McGill University, Montréal, QC, Canada
| | - Eric Yu
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Jamil Ahmad
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
| | - Jennifer A. Ruskey
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
| | - Farnaz Asayesh
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Dan Spiegelman
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
| | - Stanley Fahn
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, NY, USA
| | - Cheryl Waters
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, NY, USA
| | - Oury Monchi
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
- Department of Clinical Neurosciences and Department of Radiology, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, Alberta, T2N 4N1 Canada
| | - Yves Dauvilliers
- National Reference Center for Narcolepsy, Sleep Unit, Department of Neurology, Guide-Chauliac Hospital, CHU Montpellier, University of Montpellier, Montpellier, France
| | - Nicolas Dupré
- Division of Neurosciences, CHU de Québec, Université Laval, Quebec City, Quebec, Canada
- Department of Medicine, Faculty of Medicine, Université Laval, Québec, Canada
| | - Lior Greenbaum
- The Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sharon Hassin-Baer
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Movement Disorders Institute, Department of Neurology, Sheba Medical Center, Tel Hashomer, Israel
| | - Ilya Nagornov
- Research Centre for Medical Genetics, Moscow, Russia
| | - Alexandr Tyurin
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | | | - Alla Timofeeva
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | - Anton Emelyanov
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | | | - Roy N. Alcalay
- Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center, NY, USA
- Division of Movement Disorders, Tel Aviv Sourasky Medical Center; Tel Aviv, Israel
| | - Sofya Pchelina
- First Pavlov State Medical University of St. Petersburg, Saint-Petersburg, Russia
| | - Ziv Gan-Or
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada
- Department of Neurology and neurosurgery, McGill University, Montréal, QC, Canada, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
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15
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Chen C, Hertz E, Chen Y, Sidransky E. Targeting protein clearance pathways in GBA1-associated Parkinson disease. Expert Opin Ther Targets 2022; 26:1031-1035. [PMID: 36628605 PMCID: PMC9909737 DOI: 10.1080/14728222.2022.2166828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/12/2023]
Affiliation(s)
- Chase Chen
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD
| | - Ellen Hertz
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD
| | - Yu Chen
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD
| | - Ellen Sidransky
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD
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