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Jacobs BM, Peter M, Giovannoni G, Noyce AJ, Morris HR, Dobson R. Towards a global view of multiple sclerosis genetics. Nat Rev Neurol 2022; 18:613-623. [PMID: 36075979 DOI: 10.1038/s41582-022-00704-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2022] [Indexed: 11/09/2022]
Abstract
Multiple sclerosis (MS) is a neuroimmunological disorder of the CNS with a strong heritable component. The genetic architecture of MS susceptibility is well understood in populations of European ancestry. However, the extent to which this architecture explains MS susceptibility in populations of non-European ancestry remains unclear. In this Perspective article, we outline the scientific arguments for studying MS genetics in ancestrally diverse populations. We argue that this approach is likely to yield insights that could benefit individuals with MS from all ancestral groups. We explore the logistical and theoretical challenges that have held back this field to date and conclude that, despite these challenges, inclusion of participants of non-European ancestry in MS genetics studies will ultimately be of value to all patients with MS worldwide.
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Affiliation(s)
- Benjamin Meir Jacobs
- Preventive Neurology Unit, Wolfson Institute of Population Health, Queen Mary University London, London, UK. .,Department of Neurology, Royal London Hospital, London, UK.
| | - Michelle Peter
- NHS North Thames Genomic Laboratory Hub, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Gavin Giovannoni
- Preventive Neurology Unit, Wolfson Institute of Population Health, Queen Mary University London, London, UK.,Department of Neurology, Royal London Hospital, London, UK.,Blizard Institute, Queen Mary University London, London, UK
| | - Alastair J Noyce
- Preventive Neurology Unit, Wolfson Institute of Population Health, Queen Mary University London, London, UK.,Department of Neurology, Royal London Hospital, London, UK.,Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Huw R Morris
- Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Ruth Dobson
- Preventive Neurology Unit, Wolfson Institute of Population Health, Queen Mary University London, London, UK.,Department of Neurology, Royal London Hospital, London, UK
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2
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Tai Y, Ico G, Low K, Liu J, Jariwala T, Garcia‐Viramontes D, Lee KH, Myung NV, Park BH, Nam J. Formation of 3D Self-Organized Neuron-Glial Interface Derived from Neural Stem Cells via Mechano-Electrical Stimulation. Adv Healthc Mater 2021; 10:e2100806. [PMID: 34219403 DOI: 10.1002/adhm.202100806] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/12/2021] [Indexed: 12/18/2022]
Abstract
Due to dissimilarities in genetics and metabolism, current animal models cannot accurately depict human neurological diseases. To develop patient-specific in vitro neural models, a functional material-based technology that offers multi-potent stimuli for enhanced neural tissue development is devised. An electrospun piezoelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) nanofibrous scaffold is systematically optimized to maximize its piezoelectric properties while accommodating the cellular behaviors of neural stem cells. Hydro-acoustic actuation is elegantly utilized to remotely activate the piezoelectric effect of P(VDF-TrFE) scaffolds in a physiologically-safe manner for the generation of cell-relevant electric potentials. This mechano-electrical stimulation, which arose from the deflection of the scaffold and its consequent generation of electric charges on the scaffold surface under hydro-acoustic actuation, induces the multi-phenotypic differentiation of neural stem cells simultaneously toward neuronal, oligodendrocytic, and astrocytic phenotypes. As compared to the traditional biochemically-mediated differentiation, the 3D neuron-glial interface induced by the mechano-electrical stimulation results in enhanced interactions among cellular components, leading to superior neural connectivity and functionality. These results demonstrate the potential of piezoelectric material-based technology for developing functional neural tissues in vitro via effective neural stem cell modulation with multi-faceted regenerative stimuli.
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Affiliation(s)
- Youyi Tai
- Department of Bioengineering University of California Riverside Riverside CA 92521 USA
| | - Gerardo Ico
- Department of Bioengineering University of California Riverside Riverside CA 92521 USA
| | - Karen Low
- Department of Bioengineering University of California Riverside Riverside CA 92521 USA
| | - Junze Liu
- Department of Bioengineering University of California Riverside Riverside CA 92521 USA
| | - Tanvi Jariwala
- Department of Bioengineering University of California Riverside Riverside CA 92521 USA
| | | | - Kyu Hwan Lee
- Korea Institute of Materials Science 797 Changwondaero, Seongsan gu Changwon Gyeongnam 51508 South Korea
| | - Nosang V. Myung
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame IN 46556 USA
| | - B. Hyle Park
- Department of Bioengineering University of California Riverside Riverside CA 92521 USA
| | - Jin Nam
- Department of Bioengineering University of California Riverside Riverside CA 92521 USA
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MHC Haplotyping of SARS-CoV-2 Patients: HLA Subtypes Are Not Associated with the Presence and Severity of COVID-19 in the Israeli Population. J Clin Immunol 2021; 41:1154-1161. [PMID: 34050837 PMCID: PMC8164405 DOI: 10.1007/s10875-021-01071-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 05/19/2021] [Indexed: 02/07/2023]
Abstract
HLA haplotypes were found to be associated with increased risk for viral infections or disease severity in various diseases, including SARS. Several genetic variants are associated with COVID-19 severity. Studies have proposed associations, based on a very small sample and a large number of tested HLA alleles, but no clear association between HLA and COVID-19 incidence or severity has been reported. We conducted a large-scale HLA analysis of Israeli individuals who tested positive for SARS-CoV-2 infection by PCR. Overall, 72,912 individuals with known HLA haplotypes were included in the study, of whom 6413 (8.8%) were found to have SARS-CoV-2 by PCR. A total of 20,937 subjects were of Ashkenazi origin (at least 2/4 grandparents). One hundred eighty-one patients (2.8% of the infected) were hospitalized due to the disease. None of the 66 most common HLA loci (within the five HLA subgroups: A, B, C, DQB1, DRB1) was found to be associated with SARS-CoV-2 infection or hospitalization in the general Israeli population. Similarly, no association was detected in the Ashkenazi Jewish subset. Moreover, no association was found between heterozygosity in any of the HLA loci and either infection or hospitalization. We conclude that HLA haplotypes are not a major risk/protecting factor among the Israeli population for SARS-CoV-2 infection or severity. Our results suggest that if any HLA association exists with the disease it is very weak, and of limited effect on the pandemic.
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Pozzato M, Micaglio E, Starvaggi Cucuzza C, Cagol A, Galimberti D, Calandrella D, Cinnante C, Pappone C, Zanussi M, Meola G, Scarpini E, Bresolin N, Martinelli Boneschi F. Case Report: Efficacy of Rituximab in a Patient With Familial Mediterranean Fever and Multiple Sclerosis. Front Neurol 2021; 11:591395. [PMID: 33584496 PMCID: PMC7874168 DOI: 10.3389/fneur.2020.591395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 12/04/2020] [Indexed: 01/16/2023] Open
Abstract
Familial Mediterranean Fever (FMF) is a genetic autoinflammatory disease characterized by recurrent episodes of fever and serositis caused by mutations in the MEFV gene, while Multiple Sclerosis (MS) is an inflammatory demyelinating disease of the CNS with genetic and environmental etiology. The two diseases rarely occur in association with relevant implications for clinical management and drug choice. In this paper, we present the case of a 53-year-old male with an autosomal dominant FMF since childhood who presented acute paresthesia at the right part of the body. He performed a brain and spinal cord MRI, which showed multiple brain lesions and a gd-enhancing lesion in the cervical spinal cord, and then received a diagnosis of MS. He then started Interferonβ-1a which was effective but not tolerated and caused hepatotoxicity, and then shifted to Rituximab with 3-month clinical and neuroradiological efficacy.
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Affiliation(s)
- Mattia Pozzato
- Foundation Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit & MS Centre, Milan, Italy.,Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), Dino Ferrari Centre, University of Milan, Milan, Italy
| | - Emanuele Micaglio
- Arrhythmology and Electrophysiology Department, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, Milan, Italy
| | - Chiara Starvaggi Cucuzza
- Department of Neurology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, San Donato Milanese, Italy
| | - Alessandro Cagol
- Department of Neurology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, San Donato Milanese, Italy
| | - Daniela Galimberti
- Department of Biomedical, Surgical and Dental Sciences, Dino Ferrari Centre, University of Milan, Milan, Italy
| | - Daniela Calandrella
- Department of Neurology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, Humanitas Research Hospital and University, Milan, Italy
| | - Claudia Cinnante
- Neuroradiology Unit, Foundation Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Carlo Pappone
- Arrhythmology and Electrophysiology Department, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, Milan, Italy
| | - Monica Zanussi
- Clinical Genomics-Molecular Genetics Service, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, San Raffaele Hospital, Milan, Italy
| | - Giovanni Meola
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.,Department of Neurorehabilitation Sciences, Casa di Cura Privata del Policlinico, Milan, Italy
| | - Elio Scarpini
- Foundation Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit & MS Centre, Milan, Italy.,Department of Biomedical, Surgical and Dental Sciences, Dino Ferrari Centre, University of Milan, Milan, Italy
| | - Nereo Bresolin
- Foundation Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit & MS Centre, Milan, Italy.,Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), Dino Ferrari Centre, University of Milan, Milan, Italy
| | - Filippo Martinelli Boneschi
- Foundation Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Donato, Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit & MS Centre, Milan, Italy.,Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), Dino Ferrari Centre, University of Milan, Milan, Italy
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Abstract
The contribution of genetic inheritance in multiple sclerosis was established early on. Although multiple sclerosis is not a Mendelian disease, its incidence and prevalence is higher in family members of affected individuals compared with the general population. Throughout the last decade, several small studies failed to identify any robust genetic associations besides the classic associations in the major histocompatibility complex region. During the past few years, genome-wide association studies (GWAS) have revolutionized the genetics of multiple sclerosis, uncovering more than 200 implicated genetic loci. Here, we describe these main findings and discuss the new avenues that these discoveries lay open.
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Affiliation(s)
- Nikolaos A Patsopoulos
- Department of Neurology, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115
- Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts 02142
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Shifting paradigms in multiple sclerosis: from disease-specific, through population-specific toward patient-specific. Curr Opin Neurol 2018; 29:354-61. [PMID: 27070218 DOI: 10.1097/wco.0000000000000324] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW In recent years we notice paradigm shifts in the understanding of multiple sclerosis (MS), leading to important transition in the patients' management. This review discusses some of the recent findings and developments underlying the conceptual changes being translated from 'treating the disease' to 'treating the patient' with MS (PwMS). RECENT FINDINGS Applying advanced technologies combined with cross-disciplinary efforts in the fields of neuropathology, neuroimmunology, neurobiology, and neuroimaging, together with clinical neurology provided support for the notion that MS is not a single disease but rather a spectrum. Predictive markers of disease subtypes, disease activity and response to therapy are being developed; some already applied to practice, allowing informed management. In parallel, population-specific issues, some genetic-driven, others caused by environmental (sun-exposure, life-style, etc.), gender-related (hormones) and epigenetic factors, are being elucidated. Additionally, patient empowerment-based approaches, including integration of patient-reported outcome measures (PRO) as well as tools to enhance patients' adherence to medications, are being developed, some already provided as part of emerging mobile-health technologies. SUMMARY Developments in the MS field, elucidating disease subtypes and interpopulation diversities, together with integration of patient-centered approaches, allow transition toward precision medicine in MS clinical trials and patient care.
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Jokubaitis VG, Butzkueven H. A genetic basis for multiple sclerosis severity: Red herring or real? Mol Cell Probes 2016; 30:357-365. [PMID: 27546889 DOI: 10.1016/j.mcp.2016.08.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/17/2016] [Accepted: 08/17/2016] [Indexed: 01/24/2023]
Abstract
Multiple Sclerosis (MS) is an autoimmune degenerative disease of the central nervous system, characterized by multifocal demyelination and neurodegeneration. The genetic architecture of MS is complex, where genetic risk has been attributed to over 100 polymorphic loci each with small odds ratios. MS is a highly heterogeneous disease with numerous clinical and paraclinical endophenotypes. To-date, no genetic variant has been associated with clinical outcome, however, evidence exists that MS outcomes, like risk, are to an extent also controlled by genetic variation. Here we summarise the current evidence for genetic determination of disease outcomes and make recommendations for future research directions.
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Affiliation(s)
- Vilija G Jokubaitis
- Department of Medicine and Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Australia; Department of Neurology, Royal Melbourne Hospital, Melbourne, Australia.
| | - Helmut Butzkueven
- Department of Medicine and Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Australia; Department of Neurology, Royal Melbourne Hospital, Melbourne, Australia; Department of Neurology, Box Hill Hospital, Monash University, Box Hill, Australia
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Sidney J, Schloss J, Moore C, Lindvall M, Wriston A, Hunt DF, Shabanowitz J, DiLorenzo TP, Sette A. Characterization of the peptide binding specificity of the HLA class I alleles B*38:01 and B*39:06. Immunogenetics 2016; 68:231-6. [PMID: 26754738 PMCID: PMC4760861 DOI: 10.1007/s00251-015-0898-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/30/2015] [Indexed: 01/27/2023]
Abstract
B*38:01 and B*39:06 are present with phenotypic frequencies <2% in the general population, but are of interest as B*39:06 is the B allele most associated with type 1 diabetes susceptibility and 38:01 is most protective. A previous study derived putative main anchor motifs for both alleles based on peptide elution data. The present study has utilized panels of single amino acid substitution peptide libraries to derive detailed quantitative motifs accounting for both primary and secondary influences on peptide binding. From these analyses, both alleles were confirmed to utilize the canonical position 2/C-terminus main anchor spacing. B*38:01 preferentially bound peptides with the positively charged or polar residues H, R, and Q in position 2 and the large hydrophobic residues I, F, L, W, and M at the C-terminus. B*39:06 had a similar preference for R in position 2, but also well-tolerated M, Q, and K. A more dramatic contrast between the two alleles was noted at the C-terminus, where the specificity of B*39:06 was clearly for small residues, with A as most preferred, followed by G, V, S, T, and I. Detailed position-by-position and residue-by-residue coefficient values were generated from the panels to provide detailed quantitative B*38:01 and B*39:06 motifs. It is hoped that these detailed motifs will facilitate the identification of T cell epitopes recognized in the context of two class I alleles associated with dramatically different dispositions towards type 1 diabetes, offering potential avenues for the investigation of the role of CD8 T cells in this disease.
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Affiliation(s)
- John Sidney
- La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Jennifer Schloss
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
| | - Carrie Moore
- La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Mikaela Lindvall
- La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Amanda Wriston
- Department of Chemistry, University of Virginia, Charlottesville, VA, 222904, USA
| | - Donald F Hunt
- Departments of Chemistry and Pathology, University of Virginia, Charlottesville, VA, 222904, USA
| | - Jeffrey Shabanowitz
- Department of Chemistry, University of Virginia, Charlottesville, VA, 222904, USA
| | - Teresa P DiLorenzo
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
- Department of Medicine (Division of Endocrinology), Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
| | - Alessandro Sette
- La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA.
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