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Gu R, Pan J, Awan MUN, Sun X, Yan F, Bai L, Bai J. The major histocompatibility complex participates in Parkinson's disease. Pharmacol Res 2024; 203:107168. [PMID: 38583689 DOI: 10.1016/j.phrs.2024.107168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 03/23/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease characterized by progressive loss of dopaminergic neurons in the substantia nigra and the aggregation of alpha-synuclein (α-syn). The central nervous system (CNS) has previously been considered as an immune-privileged area. However, studies have shown that the immune responses are involved in PD. The major histocompatibility complex (MHC) presents antigens from antigen-presenting cells (APCs) to T lymphocytes, immune responses will be induced. MHCs are expressed in microglia, astrocytes, and dopaminergic neurons. Single nucleotide polymorphisms in MHC are related to the risk of PD. The aggregated α-syn triggers the expression of MHCs by activating glia cells. CD4+ and CD8+ T lymphocytes responses and microglia activation are detected in brains of PD patients. In addiction immune responses further increase blood-brain barrier (BBB) permeability and T cell infiltration in PD. Thus, MHCs are involved in PD through participating in immune and inflammatory responses.
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Affiliation(s)
- Rou Gu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Jianyu Pan
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Maher Un Nisa Awan
- Medical School, Kunming University of Science and Technology, Kunming 650500, China; Department of Neurology, The Affiliated Hospital of Yunnan University, Kunming 650500, China
| | - Xiaowei Sun
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Fang Yan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Liping Bai
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Jie Bai
- Medical School, Kunming University of Science and Technology, Kunming 650500, China.
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2
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Kulski JK, Suzuki S, Shiina T, Pfaff AL, Kõks S. Regulatory SVA retrotransposons and classical HLA genotyped-transcripts associated with Parkinson's disease. Front Immunol 2024; 15:1349030. [PMID: 38590523 PMCID: PMC10999589 DOI: 10.3389/fimmu.2024.1349030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/06/2024] [Indexed: 04/10/2024] Open
Abstract
Introduction Parkinson's disease (PD) is a neurodegenerative and polygenic disorder characterised by the progressive loss of neural dopamine and onset of movement disorders. We previously described eight SINE-VNTR-Alu (SVA) retrotransposon-insertion-polymorphisms (RIPs) located and expressed within the Human Leucocyte Antigen (HLA) genomic region of chromosome 6 that modulate the differential co-expression of 71 different genes including the HLA classical class I and class II genes in a Parkinson's Progression Markers Initiative (PPMI) cohort. Aims and methods In the present study, we (1) reanalysed the PPMI genomic and transcriptomic sequencing data obtained from whole blood of 1521 individuals (867 cases and 654 controls) to infer the genotypes of the transcripts expressed by eight classical HLA class I and class II genes as well as DRA and the DRB3/4/5 haplotypes, and (2) examined the statistical differences between three different PD subgroups (cases) and healthy controls (HC) for the HLA and SVA transcribed genotypes and inferred haplotypes. Results Significant differences for 57 expressed HLA alleles (21 HLA class I and 36 HLA class II alleles) up to the three-field resolution and four of eight expressed SVA were detected at p<0.05 by the Fisher's exact test within one or other of three different PD subgroups (750 individuals with PD, 57 prodromes, 60 individuals who had scans without evidence of dopamine deficits [SWEDD]), when compared against a group of 654 HCs within the PPMI cohort and when not corrected by the Bonferroni test for multiple comparisons. Fourteen of 20 significant alleles were unique to the PD-HC comparison, whereas 31 of the 57 alleles overlapped between two or more different subgroup comparisons. Only the expressed HLA-DRA*01:01:01 and -DQA1*03:01:01 protective alleles (PD v HC), the -DQA1*03:03:01 risk (HC v Prodrome) or protective allele (PD v Prodrome), the -DRA*01:01:02 and -DRB4*01:03:02 risk alleles (SWEDD v HC), and the NR_SVA_381 present genotype (PD v HC) at a 5% homozygous insertion frequency near HLA-DPA1, were significant (Pc<0.1) after Bonferroni corrections. The homologous NR_SVA_381 insertion significantly decreased the transcription levels of HLA-DPA1 and HLA-DPB1 in the PPMI cohort and its presence as a homozygous genotype is a risk factor (Pc=0.012) for PD. The most frequent NR_SVA_381 insertion haplotype in the PPMI cohort was NR_SVA_381/DPA1*02/DPB1*01 (3.7%). Although HLA C*07/B*07/DRB5*01/DRB1*15/DQB1*06 was the most frequent HLA 5-loci phased-haplotype (n, 76) in the PPMI cohort, the NR_SVA_381 insertion was present in only six of them (8%). Conclusions These data suggest that expressed SVA and HLA gene alleles in circulating white blood cells are coordinated differentially in the regulation of immune responses and the long-term onset and progression of PD, the mechanisms of which have yet to be elucidated.
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Affiliation(s)
- Jerzy K. Kulski
- Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
- Health and Medical Science, Division of Immunology and Microbiology, School of Biomedical Sciences, The University of Western Australia, Nedlands, WA, Australia
| | - Shingo Suzuki
- Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Takashi Shiina
- Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Abigail L. Pfaff
- Perron Institute for Neurological and Translational Science, Perth, WA, Australia
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA, Australia
| | - Sulev Kõks
- Perron Institute for Neurological and Translational Science, Perth, WA, Australia
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA, Australia
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Sampson T. Microbial amyloids in neurodegenerative amyloid diseases. FEBS J 2023:10.1111/febs.17023. [PMID: 38041542 PMCID: PMC11144261 DOI: 10.1111/febs.17023] [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: 09/05/2023] [Revised: 11/13/2023] [Accepted: 11/30/2023] [Indexed: 12/03/2023]
Abstract
Human-disease associated amyloidogenic proteins are not unique in their ability to form amyloid fibrillar structures. Numerous microbes produce amyloidogenic proteins that have distinct functions for their physiology in their amyloid form, rather than solely detrimental. Emerging data indicate associations between various microbial organisms, including those which produce functional amyloids, with neurodegenerative diseases. Here, we review some of the evidence suggesting that microbial amyloids impact amyloid disease in host organisms. Experimental data are building a foundation for continued lines of enquiry and suggest that that direct or indirect interactions between microbial and host amyloids may be a contributor to amyloid pathologies. Inhibiting microbial amyloids or their interactions with the host may therefore represent a tangible target to limit various amyloid pathologies.
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Affiliation(s)
- Timothy Sampson
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
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Mackie PM, Koshy J, Bhogade M, Hammoor T, Hachmeister W, Lloyd GM, Paterno G, Bolen M, Tansey MG, Giasson BI, Khoshbouei H. Complement C1q-dependent engulfment of alpha-synuclein induces ENS-resident macrophage exhaustion and accelerates Parkinson's-like gut pathology. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.24.563832. [PMID: 37961460 PMCID: PMC10634831 DOI: 10.1101/2023.10.24.563832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Deposition of misfolded α-synuclein (αsyn) in the enteric nervous system (ENS) is found in multiple neurodegenerative diseases. It is hypothesized that ENS synucleinopathy contributes to both the pathogenesis and non-motor morbidity in Parkinson's Disease (PD), but the cellular and molecular mechanisms that shape enteric histopathology and dysfunction are poorly understood. Here, we demonstrate that ENS-resident macrophages, which play a critical role in maintaining ENS homeostasis, initially respond to enteric neuronal αsyn pathology by upregulating machinery for complement-mediated engulfment. Pharmacologic depletion of ENS-macrophages or genetic deletion of C1q enhanced enteric neuropathology. Conversely, C1q deletion ameliorated gut dysfunction, indicating that complement partially mediates αsyn-induced gut dysfunction. Internalization of αsyn led to increased endo-lysosomal stress that resulted in macrophage exhaustion and temporally correlated with the progression of ENS pathology. These novel findings highlight the importance of enteric neuron-macrophage interactions in removing toxic protein aggregates that putatively shape the earliest stages of PD in the periphery.
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Affiliation(s)
- P M Mackie
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
| | - J Koshy
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
| | - M Bhogade
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
| | - T Hammoor
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
| | - W Hachmeister
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
| | - G M Lloyd
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
- Center for Translational Research in Neurodegenerative Disease, University of Florida College of Medicine. Gainesville, FL, 32610
| | - G Paterno
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
- Center for Translational Research in Neurodegenerative Disease, University of Florida College of Medicine. Gainesville, FL, 32610
| | - M Bolen
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
- Center for Translational Research in Neurodegenerative Disease, University of Florida College of Medicine. Gainesville, FL, 32610
| | - M G Tansey
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
- Center for Translational Research in Neurodegenerative Disease, University of Florida College of Medicine. Gainesville, FL, 32610
- Department of Neurology and Fixel Institute for Neurological Diseases, University of Florida Health, Gainesville, Florida, 32610
| | - B I Giasson
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
- Center for Translational Research in Neurodegenerative Disease, University of Florida College of Medicine. Gainesville, FL, 32610
| | - H Khoshbouei
- Department of Neuroscience, University of Florida College of Medicine. Gainesville, FL, 32610
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5
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Amin J, Gee C, Stowell K, Coulthard D, Boche D. T Lymphocytes and Their Potential Role in Dementia with Lewy Bodies. Cells 2023; 12:2283. [PMID: 37759503 PMCID: PMC10528562 DOI: 10.3390/cells12182283] [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: 08/03/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Dementia with Lewy bodies (DLB) is the second most common neurodegenerative cause of dementia. People with DLB have an inferior prognosis compared to Alzheimer's disease (AD), but the diseases overlap in their neuropathology and clinical syndrome. It is imperative that we enhance our understanding of the aetiology and pathogenesis of DLB. The impact of peripheral inflammation on the brain in dementia has been increasingly explored in recent years, with T lymphocyte recruitment into brain parenchyma identified in AD and Parkinson's disease. There is now a growing range of literature emerging on the potential role of innate and adaptive immune cells in DLB, including T lymphocytes. In this review, we examine the profile of T lymphocytes in DLB, focusing on studies of post-mortem brain tissue, cerebrospinal fluid, and the blood compartment. We present an integrated viewpoint on the results of these studies by proposing how changes to the T lymphocyte profile in the brain and periphery may relate to each other. Improving our understanding of T lymphocytes in DLB has the potential to guide the development of disease-modifying treatments.
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Affiliation(s)
- Jay Amin
- Clinical Neurosciences, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK
- Memory Assessment and Research Centre, Tom Rudd Unit, Moorgreen Hospital, Southern Health NHS Foundation Trust, Southampton SO30 3JB, UK
| | - Claire Gee
- Clinical Neurosciences, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK
- Memory Assessment and Research Centre, Tom Rudd Unit, Moorgreen Hospital, Southern Health NHS Foundation Trust, Southampton SO30 3JB, UK
| | - Kiran Stowell
- Clinical Neurosciences, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK
| | - Daisy Coulthard
- Clinical Neurosciences, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK
| | - Delphine Boche
- Clinical Neurosciences, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK
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6
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Le Guen Y, Luo G, Ambati A, Damotte V, Jansen I, Yu E, Nicolas A, de Rojas I, Peixoto Leal T, Miyashita A, Bellenguez C, Lian MM, Parveen K, Morizono T, Park H, Grenier-Boley B, Naito T, Küçükali F, Talyansky SD, Yogeshwar SM, Sempere V, Satake W, Alvarez V, Arosio B, Belloy ME, Benussi L, Boland A, Borroni B, Bullido MJ, Caffarra P, Clarimon J, Daniele A, Darling D, Debette S, Deleuze JF, Dichgans M, Dufouil C, During E, Düzel E, Galimberti D, Garcia-Ribas G, García-Alberca JM, García-González P, Giedraitis V, Goldhardt O, Graff C, Grünblatt E, Hanon O, Hausner L, Heilmann-Heimbach S, Holstege H, Hort J, Jung YJ, Jürgen D, Kern S, Kuulasmaa T, Lee KH, Lin L, Masullo C, Mecocci P, Mehrabian S, de Mendonça A, Boada M, Mir P, Moebus S, Moreno F, Nacmias B, Nicolas G, Niida S, Nordestgaard BG, Papenberg G, Papma J, Parnetti L, Pasquier F, Pastor P, Peters O, Pijnenburg YAL, Piñol-Ripoll G, Popp J, Porcel LM, Puerta R, Pérez-Tur J, Rainero I, Ramakers I, Real LM, Riedel-Heller S, Rodriguez-Rodriguez E, Ross OA, Luís Royo J, Rujescu D, Scarmeas N, Scheltens P, Scherbaum N, Schneider A, Seripa D, Skoog I, Solfrizzi V, Spalletta G, Squassina A, van Swieten J, Sánchez-Valle R, Tan EK, Tegos T, Teunissen C, Thomassen JQ, Tremolizzo L, Vyhnalek M, Verhey F, Waern M, Wiltfang J, Zhang J, Zetterberg H, Blennow K, He Z, Williams J, Amouyel P, Jessen F, Kehoe PG, Andreassen OA, Van Duin C, Tsolaki M, Sánchez-Juan P, Frikke-Schmidt R, Sleegers K, Toda T, Zettergren A, Ingelsson M, Okada Y, Rossi G, Hiltunen M, Gim J, Ozaki K, Sims R, Foo JN, van der Flier W, Ikeuchi T, Ramirez A, Mata I, Ruiz A, Gan-Or Z, Lambert JC, Greicius MD, Mignot E. Multiancestry analysis of the HLA locus in Alzheimer's and Parkinson's diseases uncovers a shared adaptive immune response mediated by HLA-DRB1*04 subtypes. Proc Natl Acad Sci U S A 2023; 120:e2302720120. [PMID: 37643212 PMCID: PMC10483635 DOI: 10.1073/pnas.2302720120] [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: 03/02/2023] [Accepted: 05/18/2023] [Indexed: 08/31/2023] Open
Abstract
Across multiancestry groups, we analyzed Human Leukocyte Antigen (HLA) associations in over 176,000 individuals with Parkinson's disease (PD) and Alzheimer's disease (AD) versus controls. We demonstrate that the two diseases share the same protective association at the HLA locus. HLA-specific fine-mapping showed that hierarchical protective effects of HLA-DRB1*04 subtypes best accounted for the association, strongest with HLA-DRB1*04:04 and HLA-DRB1*04:07, and intermediary with HLA-DRB1*04:01 and HLA-DRB1*04:03. The same signal was associated with decreased neurofibrillary tangles in postmortem brains and was associated with reduced tau levels in cerebrospinal fluid and to a lower extent with increased Aβ42. Protective HLA-DRB1*04 subtypes strongly bound the aggregation-prone tau PHF6 sequence, however only when acetylated at a lysine (K311), a common posttranslational modification central to tau aggregation. An HLA-DRB1*04-mediated adaptive immune response decreases PD and AD risks, potentially by acting against tau, offering the possibility of therapeutic avenues.
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Affiliation(s)
- Yann Le Guen
- Department of Neurology and Neurological Sciences, Stanford University, Stanford94305, CA
- Institut du Cerveau–Paris Brain Institute–ICM, Paris75013, France
| | - Guo Luo
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
| | - Aditya Ambati
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
| | - Vincent Damotte
- Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167-RID-AGE facteurs de risque et déterminants moléculaires des maladies liés au vieillissement, Lille59000, France
| | - Iris Jansen
- Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, 1081 HVAmsterdam, The Netherlands
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, Vrije University, 1081 HVAmsterdam, The Netherlands
| | - Eric Yu
- The Neuro (Montreal Neurological Institute-Hospital), Montreal, QuebecH3A 2B4, Canada
- Department of Human Genetics, McGill University, Montreal, QuebecH3A 0G4, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, QuebecH3A 0G4, Canada
| | - Aude Nicolas
- Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167-RID-AGE facteurs de risque et déterminants moléculaires des maladies liés au vieillissement, Lille59000, France
| | - Itziar de Rojas
- Research Center and Memory clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona08029, Spain
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
| | - Thiago Peixoto Leal
- Genomic Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland44196, OH
| | - Akinori Miyashita
- Department of Molecular Genetics, Brain Research Institute, Niigata University, Niigata950-218, Japan
| | - Céline Bellenguez
- Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167-RID-AGE facteurs de risque et déterminants moléculaires des maladies liés au vieillissement, Lille59000, France
| | - Michelle Mulan Lian
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore308232, Singapore
- Laboratory of Neurogenetics, Genome Institute of Singapore, A*STAR, Singapore138672, Singapore
| | - Kayenat Parveen
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne50937, Germany
- Department of Neurodegenerative diseases and Geriatric Psychiatry, University Hospital Bonn, Medical Faculty, Bonn53127, Germany
| | - Takashi Morizono
- Medical Genome Center, Research Institute, National Center for Geriatrics and Gerontology, Obu474-8511, Japan
| | - Hyeonseul Park
- Department of Biomedical Science, Chosun University, Gwangju61452, Korea
| | - Benjamin Grenier-Boley
- Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167-RID-AGE facteurs de risque et déterminants moléculaires des maladies liés au vieillissement, Lille59000, France
| | - Tatsuhiko Naito
- Department of Statistical Genetics, Osaka University Graduate School of Medicine, Suita565-0871, Japan
- Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo192-0982, Japan
| | - Fahri Küçükali
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp2610, Belgium
- Laboratory of Neurogenetics, Institute Born–Bunge, Antwerp2610, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp2000, Belgium
| | - Seth D. Talyansky
- Department of Neurology and Neurological Sciences, Stanford University, Stanford94305, CA
| | - Selina Maria Yogeshwar
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
- Department of Neurology, Charité–Universitätsmedizin, Berlin10117, Germany
- Charité–Universitätsmedizin Berlin, Einstein Center for Neurosciences Berlin, Berlin10117, Germany
| | - Vicente Sempere
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
| | - Wataru Satake
- Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo192-0982, Japan
| | - Victoria Alvarez
- Laboratorio de Genética, Hospital Universitario Central de Asturias, Oviedo33011, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo33011, Spain
| | - Beatrice Arosio
- Department of Clinical Sciences and Community Health, University of Milan, Milan20122, Italy
| | - Michael E. Belloy
- Department of Neurology and Neurological Sciences, Stanford University, Stanford94305, CA
| | - Luisa Benussi
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia25125, Italy
| | - Anne Boland
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, Evry91057, France
| | - Barbara Borroni
- Department of Clinical and Experimental Sciences, Centre for Neurodegenerative Disorders, Neurology Unit, University of Brescia, Brescia25123, Italy
| | - María J. Bullido
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
- Centro de Biología Molecular Severo Ochoa (UAM-CSIC), Universidad Autónoma de Madrid, Madrid28049, Spain
- Instituto de Investigacion Sanitaria "Hospital la Paz" (IdIPaz), Madrid48903, Spain
| | - Paolo Caffarra
- Unit of Neurology, University of Parma and AOU, Parma43121, Italy
| | - Jordi Clarimon
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
- Department of Neurology, II B Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona08193, Spain
| | - Antonio Daniele
- Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome00168, Italy
- Neurology Unit, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome00168, Italy
| | - Daniel Darling
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
| | - Stéphanie Debette
- University Bordeaux, Inserm, Bordeaux Population Health Research Center, Bordeaux33000, France
- Department of Neurology, Bordeaux University Hospital, Bordeaux33400, France
| | - Jean-François Deleuze
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, Evry91057, France
| | - Martin Dichgans
- Institute for Stroke and Dementia Research, University Hospital, Ludwig Maximilian University of Munich, 81377, Munich, Germany
- German Center for Neurodegenerative Diseases, Munich37075, Germany
- Munich Cluster for Systems Neurology, Munich81377, Germany
| | - Carole Dufouil
- Inserm, Bordeaux Population Health Research Center, UMR 1219, Univ. Bordeaux, ISPED, CIC 1401-EC, Université de Bordeaux, Bordeaux33405, France
- CHU de Bordeaux, Pole santé publique, Bordeaux33400, France
| | - Emmanuel During
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
| | - Emrah Düzel
- German Center for Neurodegenerative Diseases, Magdeburg39120, Germany
- Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University, Magdeburg39106, Germany
| | - Daniela Galimberti
- Neurodegenerative Diseases Unit, Fondazione IRCCS Ca’ Granda, Ospedale Policlinico, Milan20122, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan20122, Italy
| | | | - José María García-Alberca
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
- Alzheimer Research Center and Memory Clinic, Andalusian Institute for Neuroscience, Málaga29012, Spain
| | - Pablo García-González
- Research Center and Memory clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona08029, Spain
| | - Vilmantas Giedraitis
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala751 22, Sweden
- Geriatrics, Uppsala University, Uppsala751 22, Sweden
| | - Oliver Goldhardt
- Department of Psychiatry and Psychotherapy, Technical University of Munich, School of Medicine, Klinikum recs der Isar, Munich80333, Germany
| | - Caroline Graff
- Unit for Hereditary Dementias, Theme Aging, Karolinska University Hospital-Solna, Stockholm171 64, Swdeen
| | - Edna Grünblatt
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich8032, Switzerland
- Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich8057, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich8057, Switzerland
| | - Olivier Hanon
- Université de Paris, EA 4468, APHP, Hôpital Broca, Paris75013, France
| | - Lucrezia Hausner
- Department of Geriatric Psychiatry, Central Institute for Mental Health Mannheim, Faculty Mannheim, University of Heidelberg, Heidelberg68159, Germany
| | - Stefanie Heilmann-Heimbach
- Institute of Human Genetics, University of Bonn, School of Medicine and University Hospital Bonn, Bonn53127, Germany
| | - Henne Holstege
- Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, 1081 HVAmsterdam, The Netherlands
- Department of Clinical Genetics, VU University Medical Centre, Amsterdam1081 HV, The Netherlands
| | - Jakub Hort
- Department of Neurology, Memory Clinic, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Prague150 06, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital Brno, Brno656 91, Czech Republic
| | - Yoo Jin Jung
- Stanford Neurosciences Interdepartmental Program, Stanford University School of Medicine, Stanford94305, CA
| | - Deckert Jürgen
- Department of Psychiatry, Psychosomatics and Psychotherapy, Center of Mental Health, University Hospital of Würzburg, Würzburg97080, Germany
| | - Silke Kern
- Department of Psychiatry and Neurochemistry, Neuropsychiatric Epidemiology Unit, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, Centre for Ageing and Health (AGECAP) at the University of Gothenburg, Gothenburg405 30, Sweden
- Region Västra Götaland, Sahlgrenska University Hospital, Psychiatry, Cognition and Old Age Psychiatry Clinic, Gothenburg413 45, Sweden
| | - Teemu Kuulasmaa
- Institute of Biomedicine, University of Eastern Finland, Joensuu, Kuopio, Eastern Finland80101, Finland
| | - Kun Ho Lee
- Department of Biomedical Science, Chosun University, Gwangju61452, Republic of Korea
- Department of Integrative Biological Sciences, Chosun University, Gwangju61452, Republic of Korea
- Gwangju Alzheimer's and Related Dementias Cohort Research Center, Chosun University, Gwangju61452, Republic of Korea
- Korea Brain Research Institute, Daegu41062, Republic of Korea
- Neurozen Inc., Seoul06236, Republic of Korea
| | - Ling Lin
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
| | - Carlo Masullo
- Institute of Neurology, Catholic University of the Sacred Heart, Rome20123, Italy
| | - Patrizia Mecocci
- Department of Medicine and Surgery, Institute of Gerontology and Geriatrics, University of Perugia, Perugia06123, Italy
| | - Shima Mehrabian
- Clinic of Neurology, UH “Alexandrovska”, Medical University–Sofia, Sofia1431, Bulgaria
| | | | - Mercè Boada
- Research Center and Memory clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona08029, Spain
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
| | - Pablo Mir
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville41013, Spain
| | - Susanne Moebus
- Institute for Urban Public Health, University Hospital of University Duisburg-Essen, Essen45147, Germany
| | - Fermin Moreno
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
- Department of Neurology, Hospital Universitario Donostia, San Sebastian20014, Spain
- Neurosciences Area, Instituto Biodonostia, San Sebastian20014, Spain
| | - Benedetta Nacmias
- Department of Neuroscience, Psychology, Drug Research and Child Health University of Florence, Florence50121, Italy
- IRCCS Fondazione Don Carlo Gnocchi, Florence20162, Italy
| | - Gael Nicolas
- Department of Genetics and CNR-MAJ, Normandie Univ, UNIROUEN, Inserm U1245 and CHU Rouen, RouenF-76000, France
| | - Shumpei Niida
- Medical Genome Center, Research Institute, National Center for Geriatrics and Gerontology, Obu474-8511, Japan
| | - Børge G. Nordestgaard
- Department of Clinical Biochemistry, Copenhagen University Hospital-Herlev Gentofte, Copenhagen2730, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen1172, Denmark
| | - Goran Papenberg
- Department of Neurobiology, Care Sciences and Society, Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm171 77, Sweden
| | - Janne Papma
- Department of Neurology, Alzheimer Center Erasmus MC, Erasmus University Medical Center, Rotterdam3000, The Netherlands
| | - Lucilla Parnetti
- Centre for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, University of Perugia, Perugia06123, Italy
| | - Florence Pasquier
- Université de Lille, Inserm 1172, CHU Clinical and Research Memory Research Centre of Distalz, Lille59000, France
| | - Pau Pastor
- Fundació Docència i Recerca MútuaTerrassa, Terrassa, Barcelona08221, Spain
- Memory Disorders Unit, Department of Neurology, Hospital Universitari Mutua de Terrassa, Terrassa, Barcelona08221, Spain
| | - Oliver Peters
- German Center for Neurodegenerative Diseases (DZNE), Berlin37075, Germany
- Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Psychiatry and Psychotherapy, Berlin12203, Germany
| | - Yolande A. L. Pijnenburg
- Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, 1081 HVAmsterdam, The Netherlands
| | - Gerard Piñol-Ripoll
- Unitat Trastorns Cognitius, Hospital Universitari Santa Maria de Lleida, Lleida25198, Spain
- Institut de Recerca Biomedica de Lleida, Lleida25198, Spain
| | - Julius Popp
- Department of Psychiatry, Old Age Psychiatry, Lausanne University Hospital, Lausanne1005, Switzerland
- Department of Geriatric Psychiatry, University Hospital of Psychiatry Zürich, Zürich8032, Switzerland
- Institute for Regenerative Medicine, University of Zürich, Zürich8952, Switzerland
| | - Laura Molina Porcel
- Neurological Tissue Bank–Biobanc- Hospital Clinic-Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona08036, Spain
- Alzheimer’s disease and other cognitive disorders Unit, Neurology Department, Hospital Clinic, Barcelona08036, Spain
| | - Raquel Puerta
- Research Center and Memory clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona08029, Spain
| | - Jordi Pérez-Tur
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
- Unitat de Genètica Molecular, Institut de Biomedicina de València-Consejo Superior de Investigaciones CientíficasValencia46010, Spain
- Unidad Mixta de Neurologia Genètica, Instituto de Investigación Sanitaria La Fe, Valencia46026, Spain
| | - Innocenzo Rainero
- Department of Neuroscience “Rita Levi Montalcini”, University of Torino, Torino10126, Italy
| | - Inez Ramakers
- Department of Psychiatry and Neuropsychologie, Alzheimer Center Limburg, Maastricht University, Maastricht6229 GS, The Netherlands
| | - Luis M. Real
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla41014, Spain
- Depatamento de Especialidades Quirúrgicas, Bioquímica e Inmunología, Facultad de Medicina, Universidad de Málaga, Málaga29010, Spain
| | - Steffi Riedel-Heller
- Institute of Social Medicine, Occupational Health and Public Health, University of Leipzig, Leipzig04109, Germany
| | - Eloy Rodriguez-Rodriguez
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
- Neurology Service, Marqués de Valdecilla University Hospital (University of Cantabria and IDIVAL), Santander39011, Spain
| | - Owen A. Ross
- Department of Neuroscience, Mayo Clinic-Florida, Jacksonville32224, FL
- Department of Clinical Genomics, Mayo Clinic-Florida, Jacksonville32224, FL
| | - Jose Luís Royo
- Depatamento de Especialidades Quirúrgicas, Bioquímica e Inmunología. Facultad de Medicina, Universidad de Málaga, Málaga29010, Spain
| | - Dan Rujescu
- Martin-Luther-University Halle-Wittenberg, University Clinic and Outpatient Clinic for Psychiatry, Psychotherapy and Psychosomatics, Halle (Saale)06120, Germany
| | - Nikolaos Scarmeas
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer’s Disease and the Aging Brain, Columbia University, New York10032, NY
- 1st Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens, Medical School, Athens106 79, Greece
| | - Philip Scheltens
- Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, 1081 HVAmsterdam, The Netherlands
| | - Norbert Scherbaum
- Department of Psychiatry and Psychotherapy, Medical Faculty, LVR-Hospital Essen, University of Duisburg-Essen, 45147Duisberg, Germany
| | - Anja Schneider
- German Center for Neurodegenerative Diseases (Deutsches Zentrum für Neurodegenerative Erkrankungen), 37075Göttingen, Germany
- Department for Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn53127, Germany
| | - Davide Seripa
- Department of Hematology and Stem Cell Transplant, Laboratory for Advanced Hematological Diagnostics, Lecce73100, Italy
| | - Ingmar Skoog
- Department of Psychiatry and Neurochemistry, Neuropsychiatric Epidemiology Unit, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, Centre for Ageing and Health (AGECAP) at the University of Gothenburg, Gothenburg405 30, Sweden
- Neuropsychiatric Epidemiology Unit, Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, Centre for Ageing and Health (AGECAP) at the University of Gothenburg, Gothenburg405 30, Sweden
| | - Vincenzo Solfrizzi
- Interdisciry Department of Medicine, Geriatric Medicine and Memory Unit, University of Bari “A. Moro, Bari70121, Italy
| | - Gianfranco Spalletta
- Laboratory of Neuropsychiatry, IRCCS Santa Lucia Foundation, Rome00179, Italy
- Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston77030, TX
| | - Alessio Squassina
- Department of Biomedical Sciences, University of Cagliari, Cagliari09124, Italy
| | - John van Swieten
- Department of Neurology, ErasmusMC, Rotterdam3000CA, Netherlands
| | - Raquel Sánchez-Valle
- Alzheimer's disease and other cognitive disorders unit, Service of Neurology, Hospital Clínic of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona08036, Spain
| | - Eng-King Tan
- Department of Neurology, National Neuroscience Institute, Singapore General Hospital, Singapore308433, Singapore
- Duke-National University of Singapore Medical School, Singapore169857, Singapore
| | - Thomas Tegos
- 1st Department of Neurology, Medical school, Aristotle University of Thessaloniki, Thessaloniki541 24, Greece
| | - Charlotte Teunissen
- Neurochemistry Lab, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam1081 HV, Netherlands
| | - Jesper Qvist Thomassen
- Department of Clinical Biochemistry, Copenhagen University Hospital–Rigshospitalet, Copenhagen2100, Denmark
| | - Lucio Tremolizzo
- Neurology, "San Gerardo" hospital, Monza and University of Milano-Bicocca, Monza20900, Italy
| | - Martin Vyhnalek
- Department of Clinical Genetics, VU University Medical Centre, Amsterdam1081 HV, The Netherlands
- Department of Neurology, Memory Clinic, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Prague150 06, Czech Republic
| | - Frans Verhey
- Department of Psychiatry and Neuropsychologie, Alzheimer Center Limburg, Maastricht University, Maastricht6229 GS, Netherlands
| | - Margda Waern
- Neuropsychiatric Epidemiology Unit, Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, Centre for Ageing and Health (AGECAP) at the University of Gothenburg, Gothenburg431 41, Sweden
- Region Västra Götaland, Sahlgrenska University Hospital, Psychosis Clinic, Gothenburg413 45, Sweden
| | - Jens Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, Goettingen37075, Germany
- German Center for Neurodegenerative Diseases (Deutsches Zentrum für Neurodegenerative Erkrankungen), Goettingen37075, Germany
- Department of Medical Sciences, Neurosciences and Signaling Group, Institute of Biomedicine, University of Aveiro, Aveiro3810-193, Portugal
| | - Jing Zhang
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
| | | | | | | | | | | | | | | | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal431 41, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, MölndalSE-43180, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, LondonWC1E 6BT, United Kingdom
- UK Dementia Research Institute at UCL, LondonWC1E 6BT, United Kingdom
- Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal431 41, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, MölndalSE-43180, Sweden
| | - Zihuai He
- Department of Neurology and Neurological Sciences, Stanford University, Stanford94305, CA
| | - Julie Williams
- UKDRI@Cardiff, School of Medicine, Cardiff University, WalesCF14 4YS, United Kingdom
- Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff WalesCF14 4XN, United Kingdom
| | - Philippe Amouyel
- Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167-RID-AGE facteurs de risque et déterminants moléculaires des maladies liés au vieillissement, Lille59000, France
| | - Frank Jessen
- German Center for Neurodegenerative Diseases (Deutsches Zentrum für Neurodegenerative Erkrankungen), 37075Göttingen, Germany
- Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne50937, Germany
- Cluster of Excellence Cellular Stress Responses in Aging-associated Diseases, University of Cologne, Cologne50931, Germany
| | - Patrick G. Kehoe
- Translational Health Sciences, Bristol Medical School, University of Bristol, BristolBS8 1QU, United Kingdom
| | - Ole A. Andreassen
- NORMENT Centre, Division of Mental Health and Addiction, Oslo University Hospital, Oslo0450, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Cornelia Van Duin
- Department of Epidemiology, ErasmusMC, Rotterdam3000 CA, The Netherlands
- Nuffield Department of Population Health Oxford University, OxfordOX3 7LF, United Kingdom
| | - Magda Tsolaki
- 1st Department of Neurology, Medical school, Aristotle University of Thessaloniki, Thessaloniki541 24, Greece
| | - Pascual Sánchez-Juan
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
- Alzheimer’s Centre Reina Sofia-CIEN Foundation, Madrid, Spain
| | - Ruth Frikke-Schmidt
- Department of Clinical Medicine, University of Copenhagen, Copenhagen1172, Denmark
- Department of Clinical Biochemistry, Copenhagen University Hospital–Rigshospitalet, Copenhagen2100, Denmark
| | - Kristel Sleegers
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp2610, Belgium
- Laboratory of Neurogenetics, Institute Born–Bunge, Antwerp2610, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp2000, Belgium
| | - Tatsushi Toda
- Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo192-0982, Japan
| | - Anna Zettergren
- Neuropsychiatric Epidemiology Unit, Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, Centre for Ageing and Health (AGECAP) at the University of Gothenburg, Gothenburg431 41, Sweden
| | - Martin Ingelsson
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala751 22, Sweden
- Geriatrics, Uppsala University, Uppsala751 22, Sweden
- Krembil Brain Institute, University Health Network, TorontoM5G 2C4, Canada
- Department of Medicine and Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, TorontoM5S 1A8, Canada
| | - Yukinori Okada
- Department of Statistical Genetics, Osaka University Graduate School of Medicine, Suita565-0871, Japan
- Laboratory of Statistical Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Suita565-0871, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita565-0871, Japan
- Center for Infectious Disease Education and Research, Osaka University, Suita565-0871, Japan
| | - Giacomina Rossi
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan20133, Italy
| | - Mikko Hiltunen
- Institute of Biomedicine, University of Eastern Finland, Joensuu, Kuopio, Eastern Finland80101, Finland
| | - Jungsoo Gim
- Department of Biomedical Science, Chosun University, Gwangju61452, Korea
- Department of Integrative Biological Sciences, Chosun University, Gwangju61452, Republic of Korea
- Gwangju Alzheimer's and Related Dementias Cohort Research Center, Chosun University, Gwangju61452, Republic of Korea
| | - Kouichi Ozaki
- Medical Genome Center, Research Institute, National Center for Geriatrics and Gerontology, Obu474-8511, Japan
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Rebecca Sims
- Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, WalesCF14 4YS, United Kingdom
| | - Jia Nee Foo
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore308232, Singapore
- Laboratory of Neurogenetics, Genome Institute of Singapore, A*STAR, Singapore138672, Singapore
| | - Wiesje van der Flier
- Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, 1081 HVAmsterdam, The Netherlands
| | - Takeshi Ikeuchi
- Department of Molecular Genetics, Brain Research Institute, Niigata University, Niigata950-218, Japan
| | - Alfredo Ramirez
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne50937, Germany
- Department of Neurodegenerative diseases and Geriatric Psychiatry, University Hospital Bonn, Medical Faculty, Bonn53127, Germany
- German Center for Neurodegenerative Diseases (Deutsches Zentrum für Neurodegenerative Erkrankungen), 37075Göttingen, Germany
- Cluster of Excellence Cellular Stress Responses in Aging-associated Diseases, University of Cologne, Cologne50931, Germany
- Department of Psychiatry and Glenn Biggs Institute for Alzheimer’s and Neurodegenerative Diseases, San Antonio78229, TX
| | - Ignacio Mata
- Genomic Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland44196, OH
| | - Agustín Ruiz
- Research Center and Memory clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona08029, Spain
- Networking Research Center on Neurodegenerative Diseases (CIRNED), Instituto de Salud Carlos III, Madrid28029, Spain
| | - Ziv Gan-Or
- The Neuro (Montreal Neurological Institute-Hospital), Montreal, QuebecH3A 2B4, Canada
- Department of Human Genetics, McGill University, Montreal, QuebecH3A 0G4, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, QuebecH3A 0G4, Canada
| | - Jean-Charles Lambert
- Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167-RID-AGE facteurs de risque et déterminants moléculaires des maladies liés au vieillissement, Lille59000, France
| | - Michael D. Greicius
- Department of Neurology and Neurological Sciences, Stanford University, Stanford94305, CA
| | - Emmanuel Mignot
- Center for Sleep Sciences and Medicine, Stanford University, Palo Alto94304, CA
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7
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Xiao Y, Wei Q, Ou R, Yang T, Jiang Q, Hou Y, Zhang L, Liu K, Wang S, Lin J, Zhao B, Song W, Chen X, Wu Y, Li C, Shang H. Association between peripheral adaptive immune markers and disease progression in Parkinson's disease. J Neurol 2023; 270:4444-4450. [PMID: 37278914 PMCID: PMC10243250 DOI: 10.1007/s00415-023-11790-3] [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: 03/24/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND The pathogenesis of PD has not been fully elucidated, but recent studies have shown that the adaptive immune system may play a role in the pathology of PD. However, there is a lack of longitudinal studies exploring the relationship between peripheral adaptive immune indicators and the rate of disease progression in PD. METHODS We included early PD patients with disease duration < 3 years and assessed the severity of clinical symptoms and peripheral adaptive immune system indicators (CD3+, CD4+, CD8+ T lymphocyte subsets, CD4+:CD8+ ratio, IgG, IgM, IgA, C3, C4) at baseline. Clinical symptoms were followed up every year. We used the Unified Parkinson's Disease Rating Scale (UPDRS) to assess the disease severity and the Montreal Cognitive Assessment (MoCA) to assess global cognitive function. RESULT A total of 152 PD patients were eventually included. The linear mixed model showed no significant association between baseline peripheral blood adaptive immune indicators and baseline MoCA scores or UPDRS part III scores. A higher baseline CD3+ lymphocyte percentage was associated with a slower rate of decline in MoCA scores. Baseline immune indicators were not associated with the rate of change of the UPDRS part III scores. CONCLUSION The subset of peripheral T lymphocytes was related to the rate of cognitive decline in early PD patients, suggesting that the peripheral adaptive immune system may be involved in the process of cognitive decline in early PD.
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Affiliation(s)
- Yi Xiao
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qianqian Wei
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ruwei Ou
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Tianmi Yang
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qirui Jiang
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yanbing Hou
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lingyu Zhang
- Health Management Center, West China Hospital of Sichuan University, Chengdu, China
| | - Kuncheng Liu
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shichan Wang
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Junyu Lin
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bi Zhao
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wei Song
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xueping Chen
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ying Wu
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chunyu Li
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Huifang Shang
- Laboratory of Neurodegenerative Disorders, Department of Neurology, Rare Disease Center, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Jiang N, Malone M, Chizari S. Antigen-specific and cross-reactive T cells in protection and disease. Immunol Rev 2023; 316:120-135. [PMID: 37209375 PMCID: PMC10524458 DOI: 10.1111/imr.13217] [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: 04/01/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/22/2023]
Abstract
Human T cells have a diverse T-cell receptor (TCR) repertoire that endows them with the ability to identify and defend against a broad spectrum of antigens. The universe of possible antigens that T cells may encounter, however, is even larger. To effectively surveil such a vast universe, the T-cell repertoire must adopt a high degree of cross-reactivity. Likewise, antigen-specific and cross-reactive T-cell responses play pivotal roles in both protective and pathological immune responses in numerous diseases. In this review, we explore the implications of these antigen-driven T-cell responses, with a particular focus on CD8+ T cells, using infection, neurodegeneration, and cancer as examples. We also summarize recent technological advances that facilitate high-throughput profiling of antigen-specific and cross-reactive T-cell responses experimentally, as well as computational biology approaches that predict these interactions.
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Affiliation(s)
- Ning Jiang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104
- Institute for Immunology, University of Pennsylvania, Philadelphia, PA, 19104
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, 19104
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, 19104
- Institute for RNA Innovation, University of Pennsylvania, Philadelphia, PA, 19104
| | - Michael Malone
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104
| | - Shahab Chizari
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104
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9
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Bourque M, Morissette M, Soulet D, Di Paolo T. Impact of Sex on Neuroimmune contributions to Parkinson's disease. Brain Res Bull 2023:110668. [PMID: 37196734 DOI: 10.1016/j.brainresbull.2023.110668] [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: 01/13/2023] [Revised: 03/27/2023] [Accepted: 05/13/2023] [Indexed: 05/19/2023]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disorder after Alzheimer's disease. Inflammation has been observed in both the idiopathic and familial forms of PD. Importantly, PD is reported more often in men than in women, men having at least 1.5- fold higher risk to develop PD than women. This review summarizes the impact of biological sex and sex hormones on the neuroimmune contributions to PD and its investigation in animal models of PD. Innate and peripheral immune systems participate in the brain neuroinflammation of PD patients and is reproduced in neurotoxin, genetic and alpha-synuclein based models of PD. Microglia and astrocytes are the main cells of the innate immune system in the central nervous system and are the first to react to restore homeostasis in the brain. Analysis of serum immunoprofiles in female and male control and PD patients show that a great proportion of these markers differ between male and female. The relationship between CSF inflammatory markers and PD clinical characteristics or PD biomarkers shows sex differences. Conversely, in animal models of PD, sex differences in inflammation are well documented and the beneficial effects of endogenous and exogenous estrogenic modulation in inflammation have been reported. Targeting neuroinflammation in PD is an emerging therapeutic option but gonadal drugs have not yet been investigated in this respect, thus offering new opportunities for sex specific treatments.
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Affiliation(s)
- Mélanie Bourque
- Centre de Recherche du CHU de Québec, Axe Neurosciences, 2705, Boulevard Laurier, Québec, (Québec), G1V4G2, Canada.
| | - Marc Morissette
- Centre de Recherche du CHU de Québec, Axe Neurosciences, 2705, Boulevard Laurier, Québec, (Québec), G1V4G2, Canada.
| | - Denis Soulet
- Centre de Recherche du CHU de Québec, Axe Neurosciences, 2705, Boulevard Laurier, Québec, (Québec), G1V4G2, Canada; Faculté de Pharmacie, Pavillon Ferdinand-Vandry, 1050, avenue de la Médecine, Université Laval, Québec (Québec) G1V 0A6, Canada.
| | - Thérèse Di Paolo
- Centre de Recherche du CHU de Québec, Axe Neurosciences, 2705, Boulevard Laurier, Québec, (Québec), G1V4G2, Canada; Faculté de Pharmacie, Pavillon Ferdinand-Vandry, 1050, avenue de la Médecine, Université Laval, Québec (Québec) G1V 0A6, Canada.
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10
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Standaert DG, Harms AS, Childers GM, Webster JM. Disease mechanisms as subtypes: Inflammation in Parkinson disease and related disorders. HANDBOOK OF CLINICAL NEUROLOGY 2023; 193:95-106. [PMID: 36803825 DOI: 10.1016/b978-0-323-85555-6.00011-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Neuroinflammation is a core feature of Parkinson disease (PD) and related disorders. Inflammation is detectable early in PD and persists throughout the disease state. Both the innate and the adaptive arms of the immune system are engaged in both human PD as well as in animal models of the disease. The upstream causes of PD are likely multiple and complex, which makes targeting of disease-modifying therapies based on etiological factors difficult. Inflammation is a broadly shared common mechanism and likely makes an important contribution to progression in most patients with manifest symptoms. Development of treatments targeting neuroinflammation in PD will require an understanding of the specific immune mechanisms which are active, their relative effects on both injury and neurorestoration, as well as the role of key variables likely to modulate the immune response: age, sex, the nature of the proteinopathies present, and the presence of copathologies. Studies characterizing the specific state of immune response in individuals and groups of people affected by PD will be essential to the development of targeted disease-modifying immunotherapies.
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Affiliation(s)
- David G Standaert
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States.
| | - Ashley S Harms
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Gabrielle M Childers
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jhodi M Webster
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States
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11
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Li J, Zhao J, Chen L, Gao H, Zhang J, Wang D, Zou Y, Qin Q, Qu Y, Li J, Xiong Y, Min Z, Yan M, Mao Z, Xue Z. α-Synuclein induces Th17 differentiation and impairs the function and stability of Tregs by promoting RORC transcription in Parkinson's disease. Brain Behav Immun 2023; 108:32-44. [PMID: 36343753 DOI: 10.1016/j.bbi.2022.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 10/15/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Parkinson's disease (PD) is characterized by the loss of dopaminergic neurons (DA) and the accumulation of Lewy body deposits composed of alpha-Synuclein (α-Syn), which act as antigenic epitopes to drive cytotoxic T-cell responses in PD. Increased T helper 17 (Th17) cells and dysfunctional regulatory T cells (Tregs) have been reported to be associated with the loss of DA in PD. However, the mechanism underlying the Th17/Treg imbalance remains unknown. METHODS Here, we examined the percentage of Th17 cells, the percentage of Tregs and the α-Syn level and analysed their correlations in the peripheral blood of PD patients and in the substantia nigra pars compacta (SNpc) and spleen of MPTP-treated mice and A53 transgenic mice. We assessed the effect of α-Syn on the stability and function of Tregs and the differentiation of Th17 cells and evaluated the role of retinoid-related orphan nuclear receptor (RORγt) upregulation in α-Syn stimulation in vivo and in vitro. RESULTS We found that the α-Syn level and severity of motor symptoms were positively correlated with the increase in Th17 cells and decrease in Tregs in PD patients. Moreover, α-Syn stimulation led to the loss of Forkhead box protein P3 (FOXP3) expression in Tregs, accompanied by the acquisition of IL-17A expression. Increased Th17 differentiation was detected upon α-Syn stimulation when naïve CD4+ T cells were cultured under Th17-polarizing conditions. Mechanistically, α-Syn promotes the transcription of RORC, encoding RORγt, in Tregs and Th17 cells, leading to increased Th17 differentiation and loss of Treg function. Intriguingly, the increase in Th17 cells, decrease in Tregs and apoptosis of DA were suppressed by a RORγt inhibitor (GSK805) in MPTP-treated mice. CONCLUSION Together, our data suggest that α-Syn promotes the transcription of RORC in circulating CD4+ T cells, including Tregs and Th17 cells, to impair the stability of Tregs and promote the differentiation of Th17 cells in PD. Inhibition of RORγt attenuated the apoptosis of DA and alleviated the increase in Th17 cells and decrease in Tregs in PD.
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Affiliation(s)
- Jingyi Li
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Jingwei Zhao
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Longmin Chen
- Department of Rheumatology and Immunology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; The Center for Biomedical Research, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Hongling Gao
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Jing Zhang
- The Center for Biomedical Research, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Danlei Wang
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Yuan Zou
- The Center for Biomedical Research, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Qixiong Qin
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Yi Qu
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Jiangting Li
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Yongjie Xiong
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Zhe Min
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Manli Yan
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Zhijuan Mao
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China.
| | - Zheng Xue
- Department of Neurology, Tongji Hospital, Tongji College of Medicine, Huazhong University of Science and Technology, Wuhan 430000, China.
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Neshige S, Aoki S, Nezu T, Nakamori M, Yamazaki Y, Ohshita T, Maruyama H. Are patients with Parkinson's disease at a lower risk of catching the common cold? Propensity score matching. Parkinsonism Relat Disord 2023; 106:105227. [PMID: 36442364 DOI: 10.1016/j.parkreldis.2022.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/17/2022] [Accepted: 11/19/2022] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Accumulating evidence indicating that inflammatory responses play crucial roles in Parkinson's disease (PD) development provided a hypothesis that physiological alpha-synuclein may contribute to inflammatory responses against infections during non-advanced stages of PD. Thus, we examined the risk of catching a common cold in patients with PD as compared to other common brain diseases. METHODS We extracted PD (non-advanced; without dementia) and control (AD: Alzheimer's disease, migraine, epilepsy, and ischemic stroke) patient data from insurance claim data available between 2010 and 2021. After confirming the clinical PD diagnosis, we investigated factors associated with cold diagnoses and used propensity score matching to identify differences in the incidence of colds between PD and control patients. RESULTS Diagnosis of colds in PD patients (n = 726) and controls (AD = 377, migraine = 1019, epilepsy = 3414, ischemic stroke = 6943) was found in 1186 (9.5%) patients, which was independently associated with being female (odds ratio: OR 1.59; 95%CI 1.41-1.79; P < 0.0001), follow-up by neurologists (OR 1.30; 95%CI 1.15-1.48; P < 0.0001), diagnosis of PD (OR 0.30; 95%CI 0.20-0.45; P < 0.0001) and COVID-19 pandemic period (OR 0.58; 95%CI 0.47-0.72; P < 0.0001). After propensity score matching, the incidence of colds was significantly lower in PD (3.4%) versus in controls; AD (9.8%; P < 0.0001), migraine (13.3%; P < 0.0001), epilepsy (11.0%; P < 0.0001), ischemic stroke (8.8%; P < 0.0001). CONCLUSIONS Patients with PD were less likely to be diagnosed with colds. However, several confounding factors will need to be examined. Moreover, alpha-synuclein may provide protective resistance to viral infections by activating the immune system due to chronic inflammation in non-advanced PD patients.
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Affiliation(s)
- Shuichiro Neshige
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan; Epilepsy Center, Hiroshima University Hospital, Japan.
| | - Shiro Aoki
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Tomohisa Nezu
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Masahiro Nakamori
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Yu Yamazaki
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Tomohiko Ohshita
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Hirofumi Maruyama
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan; Epilepsy Center, Hiroshima University Hospital, Japan
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The complex role of inflammation and gliotransmitters in Parkinson's disease. Neurobiol Dis 2023; 176:105940. [PMID: 36470499 PMCID: PMC10372760 DOI: 10.1016/j.nbd.2022.105940] [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: 06/06/2022] [Revised: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/09/2022] Open
Abstract
Our understanding of the role of innate and adaptive immune cell function in brain health and how it goes awry during aging and neurodegenerative diseases is still in its infancy. Inflammation and immunological dysfunction are common components of Parkinson's disease (PD), both in terms of motor and non-motor components of PD. In recent decades, the antiquated notion that the central nervous system (CNS) in disease states is an immune-privileged organ, has been debunked. The immune landscape in the CNS influences peripheral systems, and peripheral immunological changes can alter the CNS in health and disease. Identifying immune and inflammatory pathways that compromise neuronal health and survival is critical in designing innovative and effective strategies to limit their untoward effects on neuronal health.
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14
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Mechanisms of Autoimmune Cell in DA Neuron Apoptosis of Parkinson's Disease: Recent Advancement. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7965433. [PMID: 36567855 PMCID: PMC9771667 DOI: 10.1155/2022/7965433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 12/23/2022]
Abstract
Parkinson's disease (PD) is a prevalent neurodegenerative disorder that manifests as motor and nonmotor symptoms due to the selective loss of midbrain DArgic (DA) neurons. More and more studies have shown that pathological reactions initiated by autoimmune cells play an essential role in the progression of PD. Autoimmune cells exist in the brain parenchyma, cerebrospinal fluid, and meninges; they are considered inducers of neuroinflammation and regulate the immune in the human brain in PD. For example, T cells can recognize α-synuclein presented by antigen-presenting cells to promote neuroinflammation. In addition, B cells will accelerate the apoptosis of DA neurons in the case of PD-related gene mutations. Activation of microglia and damage of DA neurons even form the self-degeneration cycle to deteriorate PD. Numerous autoimmune cells have been considered regulators of apoptosis, α-synuclein misfolding and aggregation, mitochondrial dysfunction, autophagy, and neuroinflammation of DA neurons in PD. The evidence is mounting that autoimmune cells promote DA neuron apoptosis. In this review, we discuss the current knowledge regarding the regulation and function of B cell, T cell, and microglia as well as NK cell in PD pathogenesis, focusing on DA neuron apoptosis to understand the disease better and propose potential target identification for the treatment in the early stages of PD. However, there are still some limitations in our work, for example, the specific mechanism of PD progression caused by autoimmune cells in mitochondrial dysfunction, ferroptosis, and autophagy has not been clarified in detail, which needs to be summarized in further work.
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15
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Gate D. New Perspectives on Immune Involvement in Parkinson’s Disease Pathogenesis. JOURNAL OF PARKINSON'S DISEASE 2022; 12:S5-S11. [PMID: 35811535 PMCID: PMC9535554 DOI: 10.3233/jpd-223240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Accumulating evidence implicates immune dysfunction in the etiology of Parkinson’s disease (PD). For instance, impaired cellular and humoral immune responses are emerging as established pathological hallmarks in PD. Further, in experimental models of PD, inflammatory cell activation and immune dysregulation are evident. Genetic and epidemiologic studies have drawn associations between autoimmune disease and PD. Distillation of these various lines of evidence indicates dysregulated immunogenetics as a primary risk factor for PD. This article will present novel perspectives on the association between genetic risk factors and immune processes in PD. The objective of this work is to synthesize the data surrounding the role of immunogenetics in PD to maximize the potential of targeting the immune system as a therapeutic modality.
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Affiliation(s)
- David Gate
- Department of Neurology, Northwestern University, Chicago, IL, USA
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16
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Kouli A, Williams-Gray CH. Age-Related Adaptive Immune Changes in Parkinson’s Disease. JOURNAL OF PARKINSON'S DISEASE 2022; 12:S93-S104. [PMID: 35661020 PMCID: PMC9535571 DOI: 10.3233/jpd-223228] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Ageing is a major risk factor for most neurodegenerative diseases, including Parkinson’s disease (PD). Progressive age-related dysregulation of the immune system is termed immunosenescence and is responsible for the weakened response to novel antigens, increased susceptibility to infections and reduced effectiveness of vaccines seen in the elderly. Immune activation, both within the brain and periphery, is heavily implicated in PD but the role of immunosenescence has not been fully explored. Studies to date provide some evidence for an attenuation in immunosenescence in PD, particularly a reduction in senescent CD8 T lymphocytes in PD cases compared to similarly aged controls. Here, we discuss recent evidence of age-related immune abnormalities in PD with a focus on T cell senescence and explore their potential role in disease pathogenesis and development.
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Affiliation(s)
- Antonina Kouli
- Department of Clinical Neurosciences, University of Cambridge, John Van Geest Centre for Brain Repair, Cambridge, UK
| | - Caroline H. Williams-Gray
- Department of Clinical Neurosciences, University of Cambridge, John Van Geest Centre for Brain Repair, Cambridge, UK
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17
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Abstract
Parkinson’s disease (PD) is the second most common neurodegenerative disorder which affects 6.1 million people worldwide. The neuropathological hallmarks include the loss of dopaminergic neurons in the substantia nigra, the presence of Lewy bodies and Lewy neurites caused by α-synuclein aggregation, and neuroinflammation in the brain. The prodromal phase happens years before the onset of PD during which time many patients show gastro-intestinal symptoms. These symptoms are in support of Braak’s theory and model where pathological α‐synuclein propagates from the gut to the brain. Importantly, immune responses play a determinant role in the pathogenesis of Parkinson’s disease. The innate immune responses triggered by microglia can cause neuronal death and disease progression. In addition, T cells infiltrate into the brains of PD patients and become involved in the adaptive immune responses. Interestingly, α‐synuclein is associated with both innate and adaptive immune responses by directly interacting with microglia and T cells. Here, we give a detailed review of the immunobiology of Parkinson’s disease, focusing on the role α-synuclein in the gut-brain axis hypothesis, the innate and adaptive immune responses involved in the disease, and current treatments.
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18
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Huda TI, Diaz MJ, Gozlan EC, Chobrutskiy A, Chobrutskiy BI, Blanck G. Immunogenomics Parameters for Patient Stratification in Alzheimer's Disease. J Alzheimers Dis 2022; 88:619-629. [PMID: 35662120 DOI: 10.3233/jad-220119] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Despite the fact that only modest adaptive immune system related approaches to treating Alzheimer's disease (AD) are available, an immunogenomics approach to the study of AD has not yet substantially advanced. OBJECTIVE Thus, we sought to better understand adaptive immune receptor chemical features in the AD setting. METHODS We characterized T-cell receptor alpha (TRA) complementarity determining region-3 (CDR3) physicochemical features and identified TRA CDR3 homology groups, represented by TRA recombination reads extracted from 2,665 AD-related, blood- and brain-derived exome files. RESULTS We found that a higher isoelectric value for the brain TRA CDR3s was associated with a higher (clinically worse) Braak stage and that a number of TRA CDR3 chemical homology groups, in particular representing bloodborne TRA CDR3s, were associated with higher or lower Braak stages. Lastly, greater chemical complementarity of both blood- and brain-derived TRA CDR3s and tau, based on a recently described CDR3-candidate antigen chemical complementarity scoring process (https://adaptivematch.com), was associated with higher Braak stages. CONCLUSION Overall, the data reported here raise the questions of (a) whether progression of AD is facilitated by the adaptive immune response to tau; and (b) whether assessment of such an anti-tau immune response could potentially serve as a basis for adaptive immune receptor related, AD risk stratification?
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Affiliation(s)
- Taha I Huda
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Michael J Diaz
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Etienne C Gozlan
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Andrea Chobrutskiy
- Department of Pediatrics, Oregon Health and Science University Hospital, Portland, OR, USA
| | - Boris I Chobrutskiy
- Department of Internal Medicine, Oregon Health and Science University Hospital, Portland, OR, USA
| | - George Blanck
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.,Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
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Wang C, Wang C, Wu Y, Gao J, Han Y, Chu Y, Qiang L, Qiu J, Gao Y, Wang Y, Song F, Wang Y, Shao X, Zhang Y, Han L. High-Throughput, Living Single-Cell, Multiple Secreted Biomarker Profiling Using Microfluidic Chip and Machine Learning for Tumor Cell Classification. Adv Healthc Mater 2022; 11:e2102800. [PMID: 35368151 DOI: 10.1002/adhm.202102800] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/02/2022] [Indexed: 11/09/2022]
Abstract
Secreted proteins provide abundant functional information on living cells and can be used as important tumor diagnostic markers, of which profiling at the single-cell level is helpful for accurate tumor cell classification. Currently, achieving living single-cell multi-index, high-sensitivity, and quantitative secretion biomarker profiling remains a great challenge. Here, a high-throughput living single-cell multi-index secreted biomarker profiling platform is proposed, combined with machine learning, to achieve accurate tumor cell classification. A single-cell culture microfluidic chip with self-assembled graphene oxide quantum dots (GOQDs) enables high-activity single-cell culture, ensuring normal secretion of biomarkers and high-throughput single-cell separation, providing sufficient statistical data for machine learning. At the same time, the antibody barcode chip with self-assembled GOQDs performs multi-index, highly sensitive, and quantitative detection of secreted biomarkers, in which each cell culture chamber covers a whole barcode array. Importantly, by combining the K-means strategy with machine learning, thousands of single tumor cell secretion data are analyzed, enabling tumor cell classification with a recognition accuracy of 95.0%. In addition, further profiling of the grouping results reveals the unique secretion characteristics of subgroups. This work provides an intelligent platform for high-throughput living single-cell multiple secretion biomarker profiling, which has broad implications for cancer investigation and biomedical research.
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Affiliation(s)
- Chao Wang
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Chunhua Wang
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Yu Wu
- Obstetrics and Gynecology Department Peking University Third Hospital Beijing 100191 China
| | - Jianwei Gao
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Yingkuan Han
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Yujin Chu
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Le Qiang
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Jiaoyan Qiu
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Yakun Gao
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Yanhao Wang
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Fangteng Song
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Yihe Wang
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Xiaowei Shao
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Yu Zhang
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
| | - Lin Han
- Institute of Marine Science and Technology Shandong University Tsingdao 266237 China
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Rickenbach C, Gericke C. Specificity of Adaptive Immune Responses in Central Nervous System Health, Aging and Diseases. Front Neurosci 2022; 15:806260. [PMID: 35126045 PMCID: PMC8812614 DOI: 10.3389/fnins.2021.806260] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 12/29/2021] [Indexed: 12/25/2022] Open
Abstract
The field of neuroimmunology endorses the involvement of the adaptive immune system in central nervous system (CNS) health, disease, and aging. While immune cell trafficking into the CNS is highly regulated, small numbers of antigen-experienced lymphocytes can still enter the cerebrospinal fluid (CSF)-filled compartments for regular immune surveillance under homeostatic conditions. Meningeal lymphatics facilitate drainage of brain-derived antigens from the CSF to deep cervical lymph nodes to prime potential adaptive immune responses. During aging and CNS disorders, brain barriers and meningeal lymphatic functions are impaired, and immune cell trafficking and antigen efflux are altered. In this context, alterations in the immune cell repertoire of blood and CSF and T and B cells primed against CNS-derived autoantigens have been observed in various CNS disorders. However, for many diseases, a causal relationship between observed immune responses and neuropathological findings is lacking. Here, we review recent discoveries about the association between the adaptive immune system and CNS disorders such as autoimmune neuroinflammatory and neurodegenerative diseases. We focus on the current challenges in identifying specific T cell epitopes in CNS diseases and discuss the potential implications for future diagnostic and treatment options.
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Affiliation(s)
- Chiara Rickenbach
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland
| | - Christoph Gericke
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland
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21
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Hobson BD, Sulzer D. Neuronal Presentation of Antigen and Its Possible Role in Parkinson's Disease. JOURNAL OF PARKINSON'S DISEASE 2022; 12:S137-S147. [PMID: 35253783 PMCID: PMC9440948 DOI: 10.3233/jpd-223153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Patients with Parkinson's disease (PD) and other synucleinopathies often exhibit autoimmune features, including CD4+ and some CD8+ T lymphocytes that recognize epitopes derived from alpha-synuclein. While neurons have long been considered to not present antigens, recent data indicate that they can be induced to do so, particularly in response to interferons and other forms of stress. Here, we review literature on neuronal antigen presentation and its potential role in PD. Although direct evidence for CD8+ T cell-mediated neuronal death is lacking in PD, neuronal antigen presentation appears central to the pathology of Rasmussen's encephalitis, a pediatric neurological disorder driven by cytotoxic T cell infiltration and neuroinflammation. Emerging data suggest that T cells enter the brain in PD and other synucleinopathies, where the majority of neuromelanin-containing substantia nigra and locus coeruleus neurons express MHC Class I molecules. In cell culture, CD8+ T cell recognition of antigen:MHC Class I complexes on neuronal membranes leads to cytotoxic responses and neuronal cell death. Recent animal models suggest the possibility of T cell autoreactivity to mitochondrial antigens in PD. It remains unclear if neuronal antigen presentation plays a role in PD or other neurodegenerative disorders, and efforts are underway to better elucidate the potential impact of autoimmune responses on neurodegeneration.
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Affiliation(s)
- Benjamin D. Hobson
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, USA
- Medical Scientist Training Program, Columbia University Irving Medical Center, New York, NY, USA
| | - David Sulzer
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, USA
- Department of Pharmacology, Columbia University Irving Medical Center, New York, NY, USA
- Division of Molecular Therapeutics, New York State Psychiatric Institute, New York, NY, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
- Correspondence to: David Sultzer, Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA. E-mail:
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22
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Amoriello R, Mariottini A, Ballerini C. Immunosenescence and Autoimmunity: Exploiting the T-Cell Receptor Repertoire to Investigate the Impact of Aging on Multiple Sclerosis. Front Immunol 2021; 12:799380. [PMID: 34925384 PMCID: PMC8673061 DOI: 10.3389/fimmu.2021.799380] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/16/2021] [Indexed: 01/08/2023] Open
Abstract
T-cell receptor (TCR) repertoire diversity is a determining factor for the immune system capability in fighting infections and preventing autoimmunity. During life, the TCR repertoire diversity progressively declines as a physiological aging progress. The investigation of TCR repertoire dynamics over life represents a powerful tool unraveling the impact of immunosenescence in health and disease. Multiple Sclerosis (MS) is a demyelinating, inflammatory, T-cell mediated autoimmune disease of the Central Nervous System in which age is crucial: it is the most widespread neurological disease among young adults and, furthermore, patients age may impact on MS progression and treatments outcome. Crossing knowledge on the TCR repertoire dynamics over MS patients' life is fundamental to investigate disease mechanisms, and the advent of high- throughput sequencing (HTS) has significantly increased our knowledge on the topic. Here we report an overview of current literature about the impact of immunosenescence and age-related TCR dynamics variation in autoimmunity, including MS.
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Affiliation(s)
- Roberta Amoriello
- Dipartimento di Medicina Sperimentale e Clinica (DMSC), Laboratory of Neuroimmunology, University of Florence, Florence, Italy
| | - Alice Mariottini
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino (NEUROFARBA), University of Florence, Florence, Italy
| | - Clara Ballerini
- Dipartimento di Medicina Sperimentale e Clinica (DMSC), Laboratory of Neuroimmunology, University of Florence, Florence, Italy
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Gate D, Tapp E, Leventhal O, Shahid M, Nonninger TJ, Yang AC, Strempfl K, Unger MS, Fehlmann T, Oh H, Channappa D, Henderson VW, Keller A, Aigner L, Galasko DR, Davis MM, Poston KL, Wyss-Coray T. CD4 + T cells contribute to neurodegeneration in Lewy body dementia. Science 2021; 374:868-874. [PMID: 34648304 PMCID: PMC9122025 DOI: 10.1126/science.abf7266] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Recent studies indicate that the adaptive immune system plays a role in Lewy body dementia (LBD). However, the mechanism regulating T cell brain homing in LBD is unknown. Here, we observed T cells adjacent to Lewy bodies and dopaminergic neurons in post-mortem LBD brains. Single-cell RNA sequencing of cerebrospinal fluid (CSF) identified upregulated expression of C-X-C Motif Chemokine Receptor 4 (CXCR4) in CD4+ T cells in LBD. CSF protein levels of the CXCR4 ligand, C-X-C Motif Chemokine Ligand 12 (CXCL12) were associated with neuroaxonal damage in LBD. Furthermore, we observed clonal expansion and upregulated Interleukin 17A expression by CD4+ T cells stimulated with a phosphorylated α-synuclein epitope. Thus, CXCR4-CXCL12 signaling may represent a mechanistic target for inhibiting pathological interleukin-17-producing T cell trafficking in LBD. The immune system is implicated in the neurodegenerative process of Lewy body dementia.
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Affiliation(s)
- David Gate
- Department of Neurology, Northwestern University, Chicago, IL, USA.,Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
| | - Emma Tapp
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
| | - Olivia Leventhal
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
| | - Marian Shahid
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Tim J Nonninger
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
| | - Andrew C Yang
- Department of Bioengineering, Stanford University, Stanford, CA, USA.,Chemistry, Engineering, and Medicine for Human Health (ChEM-H), Stanford University, Stanford, CA, USA
| | - Katharina Strempfl
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria.,Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, Salzburg, Austria.,QPS Austria GmbH, Parkring 12, 8074 Grambach, Austria
| | - Michael S Unger
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria.,Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Tobias Fehlmann
- Chair for Clinical Bioinformatics, Saarland University, Saarbrucken, Germany
| | - Hamilton Oh
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
| | - Divya Channappa
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Victor W Henderson
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Andreas Keller
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Chair for Clinical Bioinformatics, Saarland University, Saarbrucken, Germany
| | - Ludwig Aigner
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria.,Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Douglas R Galasko
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - Mark M Davis
- Department of Microbiology and Immunology, School of Medicine, Stanford University, Stanford, CA, USA.,Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Kathleen L Poston
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.,Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA.,Chemistry, Engineering, and Medicine for Human Health (ChEM-H), Stanford University, Stanford, CA, USA
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