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Gupta A, Pakravan M, Charoenkijkajorn C, Lee AG. Strabismus Associated With the Good Syndrome (Immunodeficiency and Thymoma). J Neuroophthalmol 2024; 44:e417-e418. [PMID: 37163355 DOI: 10.1097/wno.0000000000001854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- Akash Gupta
- Baylor College of Medicine (AG); Department of Ophthalmology (MP, CC, AGL), Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas; Departments of Ophthalmology, Neurology, and Neurosurgery (AGL), Weill Cornell Medicine, New York, New York; Department of Ophthalmology (AGL), University of Texas Medical Branch, Galveston, Texas; University of Texas MD Anderson Cancer Center (AGL), Houston, Texas; Texas A and M College of Medicine (AGL), Bryan, Texas; and Department of Ophthalmology (AGL), The University of Iowa Hospitals and Clinics, Iowa City, Iowa
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Balint B. Autoimmune Movement Disorders. Continuum (Minneap Minn) 2024; 30:1088-1109. [PMID: 39088289 DOI: 10.1212/con.0000000000001455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2024]
Abstract
OBJECTIVE This article reviews the clinical and antibody spectrum of autoimmune cerebellar ataxia and other autoimmune movement disorders. It highlights characteristic phenotypes and red flags to the diagnosis and how these rare, but treatable, disorders are integrated into a differential diagnosis. LATEST DEVELOPMENTS An increasing number of neuronal antibodies have been identified in patients with cerebellar ataxia, for example, against Kelch-like protein 11 (KLHL11), seizure-related 6 homolog-like 2, septin-3 and septin-5, or tripartite motif containing protein 9 (TRIM9), TRIM46, and TRIM67. Ig-like cell adhesion molecule 5 (IgLON5) antibody-associated syndromes have emerged as an important alternative diagnostic consideration to various neurodegenerative diseases such as Huntington disease or atypical parkinsonism. Opsoclonus-myoclonus syndrome emerged as the most relevant parainfectious movement disorder related to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). ESSENTIAL POINTS Autoimmune cerebellar ataxia and other autoimmune movement disorders encompass a broad spectrum of different clinical syndromes, antibodies, and immunopathophysiologic mechanisms. Clinical acumen is key to identifying the cases that should undergo testing for neuronal antibodies. Given the overlap between phenotypes and antibodies, panel testing in serum and CSF is recommended.
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Zhou A, Ren H, Fu L, Ren C, Zhou J, Guan H, Ren X, Zhang W. Anti-Purkinje Cell Cytoplasmic Antibody Type 2-Associated Autoimmune Cerebellar Degeneration in Children: A Different Phenotype From Adults. Pediatr Neurol 2024; 160:26-29. [PMID: 39178650 DOI: 10.1016/j.pediatrneurol.2024.07.004] [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: 12/02/2022] [Revised: 06/17/2024] [Accepted: 07/05/2024] [Indexed: 08/26/2024]
Abstract
BACKGROUND Anti-Purkinje cell cytoplasmic antibody type 2 (PCA-2) is associated with various neurological conditions in adults. However, related studies have not been conducted in children. The present study aimed to characterize the clinical features and outcomes of PCA-2-related autoimmune cerebellar degeneration in pediatric patients. METHODS A total of 357 pediatric patients with acute or subacute cerebellar ataxia were recruited for the study from June 2015 to September 2022. Of these, PCA-2 was identified in four patients. Information on the clinical manifestations, patient response to treatment, and outcomes was collected and analyzed. RESULTS The patient cohort in the present study included two boys and two girls, with the age of onset from six to 12 years. Axial ataxia was the most remarkable symptom observed in the entire patient cohort (four of four), followed by dysmetria in 75% (three of four), dysarthria in 50% (two of four), and nystagmus in 25% (one of four) of patients. Cognitive impairment was present in one patient. Peripheral neuropathy, which is an extracerebellar symptom, was found in two patients. One patient was diagnosed with a pelvic neuroblastoma before the onset of ataxia. The presence of oligoclonal bands was confirmed in the cerebrospinal fluid, and cerebellar atrophy was observed. Immunotherapy, including glucocorticoids and/or intravenous immunoglobulin, was administered to all four patients immediately following diagnosis, and mycophenolate mofetil was administered to three patients. Three patients responded to immunotherapy. CONCLUSIONS In children, PCA2-associated autoimmune cerebellar degeneration is rare, and they show comparatively fewer symptoms than adults. Timely and appropriate immunotherapy is beneficial.
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Affiliation(s)
- Anna Zhou
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Haitao Ren
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Libing Fu
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Changhong Ren
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Ji Zhou
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hongzhi Guan
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaotun Ren
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Weihua Zhang
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
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Wu X, Zhang H, Shi M, Fang S. Clinical features in antiglycine receptor antibody-related disease: a case report and update literature review. Front Immunol 2024; 15:1387591. [PMID: 38953026 PMCID: PMC11215014 DOI: 10.3389/fimmu.2024.1387591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 06/06/2024] [Indexed: 07/03/2024] Open
Abstract
Background and objectives Antiglycine receptor (anti-GlyR) antibody mediates multiple immune-related diseases. This study aimed to summarize the clinical features to enhance our understanding of anti-GlyR antibody-related disease. Methods By collecting clinical information from admitted patients positive for glycine receptor (GlyR) antibody, the clinical characteristics of a new patient positive for GlyR antibody were reported in this study. To obtain additional information regarding anti-GlyR antibody-linked illness, clinical data and findings on both newly reported instances in this study and previously published cases were merged and analyzed. Results A new case of anti-GlyR antibody-related progressive encephalomyelitis with rigidity and myoclonus (PERM) was identified in this study. A 20-year-old man with only positive cerebrospinal fluid anti-GlyR antibody had a good prognosis with first-line immunotherapy. The literature review indicated that the common clinical manifestations of anti-GlyR antibody-related disease included PERM or stiff-person syndrome (SPS) (n = 179, 50.1%), epileptic seizure (n = 94, 26.3%), and other neurological disorders (n = 84, 24.5%). Other neurological issues included demyelination, inflammation, cerebellar ataxia and movement disorders, encephalitis, acute psychosis, cognitive impairment or dementia, celiac disease, Parkinson's disease, neuropathic pain and allodynia, steroid-responsive deafness, hemiballism/tics, laryngeal dystonia, and generalized weakness included respiratory muscles. The group of PERM/SPS exhibited a better response to immunotherapy than others. Conclusions The findings suggest the presence of multiple clinical phenotypes in anti-GlyR antibody-related disease. Common clinical phenotypes include PERM, SPS, epileptic seizure, and paraneoplastic disease. Patients with RERM/SPS respond well to immunotherapy.
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Affiliation(s)
- Xiaoke Wu
- Department of Neurology, Neuroscience Centre, The First Hospital of Jilin University, Changchun, China
| | - Haifeng Zhang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengmeng Shi
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shaokuan Fang
- Department of Neurology, Neuroscience Centre, The First Hospital of Jilin University, Changchun, China
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Saiz A, Graus F. Neuronal antibodies in nonparaneoplastic autoimmune cerebellar ataxias. Curr Opin Neurol 2024; 37:322-328. [PMID: 38483149 DOI: 10.1097/wco.0000000000001260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2024]
Abstract
PURPOSE OF REVIEW To describe relevant advances in nonparaneoplastic autoimmune cerebellar ataxias (ACA) with neuronal antibodies. RECENT FINDINGS Apart from metabotropic glutamate receptor 1(mGluR1) antibodies, in recent years, the number of neuronal antibodies against surface antigens in ACA has increased with the description of glutamate kainate receptor subunit 2 (GluK2) antibodies in young patients with cerebellitis. Around 20% of patients with contactin-associated protein-like 2 (CASPR2) encephalitis also present prominent cerebellar ataxia. However, isolate cerebellar ataxia is unusual (<4%). Outcome in patients with neuronal antibodies against surface antigens remains suboptimal despite the cerebellar ataxia probably is antibody-mediated.Concerning neuronal antibodies against intracellular antigens, up to 25% of patients with glutamic acid decarboxylase (GAD) antibodies present transient episodes of vertigo or diplopia that antedate the development of the ACA. There is in-vitro evidence that septin-5 is partially exposed to the membrane and the antibodies may interfere with septin-5 function. The clinical significance of the remaining antibodies against intracellular antigens remains unclear. SUMMARY The number of antibodies against surface antigens is increasing in ACA, but the response to the immunotherapy remains suboptimal. More studies are needed to clarify the role of most of the antibodies against intracellular antigens described in these patients.
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Affiliation(s)
- Albert Saiz
- Service of Neurology, Hospital Clinic
- Neuroimmunology Program, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Francesc Graus
- Neuroimmunology Program, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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Abunada M, Nierobisch N, Ludovichetti R, Simmen C, Terziev R, Togni C, Michels L, Kulcsar Z, Hainc N. Autoimmune encephalitis: Early and late findings on serial MR imaging and correlation to treatment timepoints. Eur J Radiol Open 2024; 12:100552. [PMID: 38327544 PMCID: PMC10847996 DOI: 10.1016/j.ejro.2024.100552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/09/2024] Open
Abstract
Introduction MRI is negative in a large percentage of autoimmune encephalitis cases or lacks findings specific to an antibody. Even rarer is literature correlating the evolution of imaging findings with treatment timepoints. We aim to characterize imaging findings in autoimmune encephalitis at presentation and on follow up correlated with treatment timepoints for this rare disease. Methods A full-text radiological information system search was performed for "autoimmune encephalitis" between January 2012 and June 2022. Patients with laboratory-identified autoantibodies were included. MRI findings were assessed in correlation to treatment timepoints by two readers in consensus. For statistical analysis, cell-surface vs intracellular antibody groups were assessed for the presence of early limbic, early extralimbic, late limbic, and late extralimbic findings using the χ2 test. Results Thirty-seven patients (female n = 18, median age 58.8 years; range 25.7 to 82.7 years) with 15 different autoantibodies were included in the study. Twenty-three (62%) patients were MRI-negative at time of presentation; 5 of these developed MRI findings on short-term follow up. Of the 19 patients with early MRI findings, 9 (47%) demonstrated improvement upon treatment initiation (7/9 cell-surface group). There was a significant difference (p = 0.046) between the MRI spectrum of cell-surface vs intracellular antibody syndromes as cell-surface antibody syndromes demonstrated more early classic findings of limbic encephalitis and intracellular antibody syndromes demonstrated more late extralimbic abnormalities. Conclusion MRI can be used to help narrow the differential diagnosis in autoimmune encephalitis and can be used as a monitoring tool for certain subtypes of this rare disease.
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Affiliation(s)
- Mahmoud Abunada
- Department of Neuroradiology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Nathalie Nierobisch
- Department of Neuroradiology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Riccardo Ludovichetti
- Department of Neuroradiology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Cyril Simmen
- Department of Neurology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Robert Terziev
- Department of Neurology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Claudio Togni
- Department of Neurology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Lars Michels
- Department of Neuroradiology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Zsolt Kulcsar
- Department of Neuroradiology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Nicolin Hainc
- Department of Neuroradiology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland
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Manto M, Hadjivassiliou M, Baizabal-Carvallo JF, Hampe CS, Honnorat J, Joubert B, Mitoma H, Muñiz-Castrillo S, Shaikh AG, Vogrig A. Consensus Paper: Latent Autoimmune Cerebellar Ataxia (LACA). CEREBELLUM (LONDON, ENGLAND) 2024; 23:838-855. [PMID: 36991252 PMCID: PMC10060034 DOI: 10.1007/s12311-023-01550-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/20/2023] [Indexed: 06/01/2023]
Abstract
Immune-mediated cerebellar ataxias (IMCAs) have diverse etiologies. Patients with IMCAs develop cerebellar symptoms, characterized mainly by gait ataxia, showing an acute or subacute clinical course. We present a novel concept of latent autoimmune cerebellar ataxia (LACA), analogous to latent autoimmune diabetes in adults (LADA). LADA is a slowly progressive form of autoimmune diabetes where patients are often initially diagnosed with type 2 diabetes. The sole biomarker (serum anti-GAD antibody) is not always present or can fluctuate. However, the disease progresses to pancreatic beta-cell failure and insulin dependency within about 5 years. Due to the unclear autoimmune profile, clinicians often struggle to reach an early diagnosis during the period when insulin production is not severely compromised. LACA is also characterized by a slowly progressive course, lack of obvious autoimmune background, and difficulties in reaching a diagnosis in the absence of clear markers for IMCAs. The authors discuss two aspects of LACA: (1) the not manifestly evident autoimmunity and (2) the prodromal stage of IMCA's characterized by a period of partial neuronal dysfunction where non-specific symptoms may occur. In order to achieve an early intervention and prevent cell death in the cerebellum, identification of the time-window before irreversible neuronal loss is critical. LACA occurs during this time-window when possible preservation of neural plasticity exists. Efforts should be devoted to the early identification of biological, neurophysiological, neuropsychological, morphological (brain morphometry), and multimodal biomarkers allowing early diagnosis and therapeutic intervention and to avoid irreversible neuronal loss.
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Affiliation(s)
- Mario Manto
- Service de Neurologie, Médiathèque Jean Jacquy, CHU-Charleroi, Charleroi, Belgium
- Service des Neurosciences, University of Mons, Mons, Belgium
| | | | | | | | - Jerome Honnorat
- French Reference Center on Paraneoplastic Neurological Syndromes, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France
- Institut NeuroMyoGene MELIS INSERM U1314/CNRS UMR 5284, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Bastien Joubert
- French Reference Center on Paraneoplastic Neurological Syndromes, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France
- Institut NeuroMyoGene MELIS INSERM U1314/CNRS UMR 5284, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Hiroshi Mitoma
- Department of Medical Education, Tokyo Medical University, Tokyo, Japan.
| | | | - Aasef G Shaikh
- Louis Stokes Cleveland VA Medical Center, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Alberto Vogrig
- Clinical Neurology, Udine University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASU FC), Udine, Italy
- Department of Medicine (DAME), University of Udine, Udine, Italy
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Shimizu F. [Blood-brain barrier breakdown and autoimmune cerebellar ataxia]. Rinsho Shinkeigaku 2024; 64:148-156. [PMID: 38403685 DOI: 10.5692/clinicalneurol.cn-001932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Autoimmune cerebellar ataxia is a disease entity that affects the cerebellum and is induced by autoimmune mechanisms. The disease is classified into several etiologies, including gluten ataxia, anti-glutamate decarboxylase (GAD) ataxia, paraneoplastic cerebellar degeneration, primary autoimmune cerebellar ataxia and postinfectious cerebellar ataxia. The autoimmune response in the periphery cross-reacts with similar antigens in the cerebellum due to molecular mimicry. Breakdown of the blood‒brain barrier (BBB) could potentially explain the vulnerability of the cerebellum during the development of autoimmune cerebellar ataxia, as it gives rise to the entry of pathogenic autoantibodies or lymphocytes into the cerebellum. In this review, the maintenance of the BBB under normal conditions and the molecular basis of BBB disruption under pathological conditions are highlighted. Next, the pathomechanism of BBB breakdown in each subtype of autoimmune cerebellar ataxia is discussed. We recently identified glucose-regulated protein (GRP) 78 antibodies in paraneoplastic cerebellar degeneration and Lambert-Eaton myasthenic syndrome, and GRP78 antibodies induced by cross-reactivity with tumors can disrupt the BBB and penetrate anti-P/Q type voltage-gated calcium channel (VGCC) antibodies into the cerebellum, thus leading to cerebellar ataxia in this disease.
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Affiliation(s)
- Fumitaka Shimizu
- Department of Neurology and Clinical Neuroscience, Yamaguchi University Graduate School of Medicine
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Shukla V, Singh VRS, Edwards AM, Fernandes M. Axial dystonia as a manifestation of stiff-person syndrome in a paediatric patient. BMJ Case Rep 2024; 17:e256448. [PMID: 38359959 PMCID: PMC10875472 DOI: 10.1136/bcr-2023-256448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024] Open
Abstract
Stiff-person syndrome (SPS) is a rare neurological condition that frequently affects adults, with the neurologist diagnosing only one or two cases during his or her career. Reports of paediatric SPS are exceedingly rare, with less than 20 cases described in the literature.The patient presented was initially diagnosed with a functional movement disorder then a genetic dystonia, with a poor response to treatment trials and negative genetic testing. Consideration of Wilson's disease was refuted with non-supportive investigations and assessments.We aim to present the long road to diagnosing our first paediatric patient with SPS, who presented in middle childhood.
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Affiliation(s)
- Vanita Shukla
- Paediatric Department, NCRHA, Champ Fleurs, Trinidad and Tobago
- Child Health Unit, The University of the West Indies at St Augustine Faculty of Medical Sciences, Saint Augustine, Trinidad and Tobago
| | - Virendra Rajesh Sarabjit Singh
- Child Health Unit, The University of the West Indies at St Augustine Faculty of Medical Sciences, Saint Augustine, Trinidad and Tobago
| | | | - Maritza Fernandes
- Child Health Unit, The University of the West Indies at St Augustine Faculty of Medical Sciences, Saint Augustine, Trinidad and Tobago
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Eisenhut K, Faber J, Engels D, Gerhards R, Lewerenz J, Doppler K, Sommer C, Markewitz R, Falk KK, Rössling R, Pruess H, Finke C, Wickel J, Geis C, Ratuszny D, Pfeffer LK, Bittner S, Piepgras J, Kraft A, Klausewitz J, Nuscher B, Kümpfel T, Thaler FS. Early Neuroaxonal Damage in Neurologic Disorders Associated With GAD65 Antibodies. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2024; 11:e200176. [PMID: 37914416 PMCID: PMC10624332 DOI: 10.1212/nxi.0000000000200176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/20/2023] [Indexed: 11/03/2023]
Abstract
OBJECTIVES Neurodegeneration is considered a relevant pathophysiologic feature in neurologic disorders associated with antibodies against glutamic acid decarboxylase 65 (GAD65). In this study, we investigate surrogates of neuroaxonal damage in relation to disease duration and clinical presentation. METHODS In a multicentric cohort of 50 patients, we measured serum neurofilament light chain (sNfL) in relation to disease duration and disease phenotypes, applied automated MRI volumetry, and analyzed clinical characteristics. RESULTS In patients with neurologic disorders associated with GAD65 antibodies, we detected elevated sNfL levels early in the disease course. By contrast, this elevation of sNfL levels was less pronounced in patients with long-standing disease. Increased sNfL levels were observed in patients presenting with cerebellar ataxia and limbic encephalitis, but not in those with stiff person syndrome. Using MRI volumetry, we identified atrophy predominantly of the cerebellar cortex, cerebellar superior posterior lobe, and cerebral cortex with similar atrophy patterns throughout all clinical phenotypes. DISCUSSION Together, our data provide evidence for early neuroaxonal damage and support the need for timely therapeutic interventions in GAD65 antibody-associated neurologic disorders.
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Affiliation(s)
- Katharina Eisenhut
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Jennifer Faber
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Daniel Engels
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Ramona Gerhards
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Jan Lewerenz
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Kathrin Doppler
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Claudia Sommer
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Robert Markewitz
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Kim K Falk
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Rosa Rössling
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Harald Pruess
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Carsten Finke
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Jonathan Wickel
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Christian Geis
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Dominica Ratuszny
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Lena K Pfeffer
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Stefan Bittner
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Johannes Piepgras
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Andrea Kraft
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Jaqueline Klausewitz
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Brigitte Nuscher
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Tania Kümpfel
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys
| | - Franziska S Thaler
- From the Institute of Clinical Neuroimmunology (K.E.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Sy; German Center for Neurodegenerative Diseases (DZNE) (J.F.); Department of Neurology, University Hospital Bonn, Germany; Institute of Clinical Neuroimmunology (D.E., R.G., T.K.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Department of Neurology (J.L.), Ulm University; Department of Neurology (K.D., C.S.), University Hospital Würzburg; Institute of Clinical Chemistry (R.M.), University Hospital Schleswig-Holstein, Lübeck; Institute of Clinical Chemistry (K.K.F.), University Hospital Schleswig-Holstein, Kiel; Department of Neurology and Experimental Neurology (R.R., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin; Department of Neurology and Experimental Neurology (C.F.), Charité - Universitätsmedizin Berlin; Section of Translational Neuroimmunology (J.W., C.G.), Department of Neurology, Jena University Hospital; Department of Neurology (D.R.), Hannover Medical School; Institute of Neuroimmunology and Multiple Sclerosis (L.K.P.), Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf; Department of Neurology (S.B., J.P.), University Medical Center of the Johannes Gutenberg University Mainz; Department of Neurology (A.K.), Martha-Maria Hospital Halle; Department of Neurology (J.K.), University Hospital Bochum; German Center for Neurodegenerative Diseases (DZNE) (B.N.), Munich; Metabolic Biochemistry, Faculty of Medicine, Biomedical Center (BMC), Ludwig-Maximilians-Universität München; and Institute of Clinical Neuroimmunology (F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried, Germany; Munich Cluster for Sys.
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11
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Peng Y, Yang H, Xue YH, Chen Q, Jin H, Liu S, Yao SY, Du MQ. An update on malignant tumor-related stiff person syndrome spectrum disorders: clinical mechanism, treatment, and outcomes. Front Neurol 2023; 14:1209302. [PMID: 37859648 PMCID: PMC10582361 DOI: 10.3389/fneur.2023.1209302] [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: 06/21/2023] [Accepted: 09/01/2023] [Indexed: 10/21/2023] Open
Abstract
Stiff person syndrome (SPS) is a rare central nervous system disorder associated with malignancies. In this review, we retrieved information from PubMed, up until August 2023, using various search terms and their combinations, including SPS, stiff person syndrome spectrum disorders (SPSSDs), paraneoplastic, cancer, and malignant tumor. Data from peer-reviewed journals printed in English were organized to explain the possible relationships between different carcinomas and SPSSD subtypes, as well as related autoantigens. From literature searching, it was revealed that breast cancer was the most prevalent carcinoma linked to SPSSDs, followed by lung cancer and lymphoma. Furthermore, classic SPS was the most common SPSSD subtype, followed by stiff limb syndrome and progressive encephalomyelitis with rigidity and myoclonus. GAD65 was the most common autoantigen in patients with cancer and SPSSDs, followed by amphiphysin and GlyR. Patients with cancer subtypes might have multiple SPSSD subtypes, and conversely, patients with SPSSD subtypes might have multiple carcinoma subtypes. The first aim of this review was to highlight the complex nature of the relationships among cancers, autoantigens, and SPSSDs as new information in this field continues to be generated globally. The adoption of an open-minded approach to updating information on new cancer subtypes, autoantigens, and SPSSDs is recommended to renew our database. The second aim of this review was to discuss SPS animal models, which will help us to understand the mechanisms underlying the pathogenesis of SPS. In future, elucidating the relationship among cancers, autoantigens, and SPSSDs is critical for the early prediction of cancer and discovery of new therapeutic modalities.
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Affiliation(s)
- Yong Peng
- Department of Neurology, Affiliated First Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
- The Third Affiliated Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, China
| | - Huan Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ya-hui Xue
- Department of Neurology, Affiliated First Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
- The Third Affiliated Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, China
| | - Quan Chen
- Department of Neurology, Affiliated First Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
- The Third Affiliated Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, China
| | - Hong Jin
- Department of Neurology, Affiliated First Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
- The Third Affiliated Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, China
| | - Shu Liu
- Department of Neurology, Affiliated First Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
- The Third Affiliated Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, China
| | - Shun-yu Yao
- Department of Neurology, Affiliated First Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
- The Third Affiliated Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, China
| | - Miao-qiao Du
- Department of Neurology, Affiliated First Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
- The Third Affiliated Hospital of Hunan University of Chinese Medicine, Zhuzhou, Hunan, China
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12
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Takekoshi A, Kimura A, Yoshikura N, Yamakawa I, Urushitani M, Nakamura K, Yoshida K, Shimohata T. Clinical Features and Neuroimaging Findings of Neuropil Antibody-Positive Idiopathic Sporadic Ataxia of Unknown Etiology. CEREBELLUM (LONDON, ENGLAND) 2023; 22:915-924. [PMID: 36057079 DOI: 10.1007/s12311-022-01468-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Idiopathic sporadic ataxia (ISA) is the clinical term for nonfamilial ataxia with adult-onset and a slowly progressive course. However, immune-mediated cerebellar ataxia cannot be completely excluded from ISA. The current study investigated the neuropil antibodies against cell-surface antigens and clarified the clinical features and neuroimaging findings of patients with these antibodies. Using tissue-based immunofluorescence assays (TBAs), we examined antibodies against the cerebellum in serum samples from 67 patients who met the ISA diagnostic criteria, including 30 patients with multiple system atrophy with predominant cerebellar features (MSA-C) and 20 patients with hereditary ataxia (HA), and 18 healthy control subjects. According to the TBA results, we divided subjects into three groups: subjects positive for neuropil antibodies, subjects positive for intracellular antibodies only, and subjects negative for antibodies. We compared clinical features and neuroimaging findings in ISA patients among these three groups. The prevalence of neuropil antibodies in ISA (17.9%) was significantly higher than that in MSA-C (3.3%), HA (0%), or healthy subjects (0%). The neuropil antibody-positive ISA patients showed pure cerebellar ataxia more frequently than the other ISA patients. Two neuropil antibody-positive patients showed significant improvement of cerebellar ataxia after immunotherapy. We detected neuropil antibodies in 17.9% of ISA patients. Characteristic clinical features of neuropil antibody-positive ISA patients were pure cerebellar ataxia. Some cases of neuropil antibody-positive ISA responded to immunotherapy.
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Affiliation(s)
- Akira Takekoshi
- Department of Neurology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Akio Kimura
- Department of Neurology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Nobuaki Yoshikura
- Department of Neurology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Isamu Yamakawa
- Department of Neurology, Shiga University of Medical Science, Seta Tsukinowa, Otsu, Japan
| | - Makoto Urushitani
- Department of Neurology, Shiga University of Medical Science, Seta Tsukinowa, Otsu, Japan
| | - Katsuya Nakamura
- Department of Neurology (Neurology and Rheumatology), Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Japan
| | - Kunihiro Yoshida
- Department of Brain Disease Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Japan
| | - Takayoshi Shimohata
- Department of Neurology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan.
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13
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Papadopoulos VE, Papadimas GK, Androudi S, Anagnostouli M, Evangelopoulos ME. Stiff-Leg Syndrome Associated with Autoimmune Retinopathy and Its Treatment with IVIg-A Case Report and Review of the Literature. Brain Sci 2023; 13:1361. [PMID: 37891730 PMCID: PMC10605544 DOI: 10.3390/brainsci13101361] [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: 07/31/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Antibodies to glutamic acid decarboxylase (GAD) have been predominantly associated with stiff-person syndrome (SPS), which is often accompanied by organ-specific autoimmune diseases, such as late-onset type 1 diabetes. Autoimmune retinal pathology in SPS has recently been suggested to coexist in patients suffering from this disease; however, evidence reporting potential treatment options for the neurological and visual symptoms these patients experience remains scarce. We provide a review of the relevant literature, presenting a rare case of a middle-aged woman with autoimmune retinopathy (AIR) followed by stiff-leg syndrome who responded to intravenous immune globulin treatment (IVIg). Our report adds to previously reported data supporting the efficacy of IVIg in SPS spectrum disorders while also proposing the potential effect of IVIg in treating SPS spectrum patients with coexisting AIR.
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Affiliation(s)
- Vassilis E Papadopoulos
- First Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - George K Papadimas
- First Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Sofia Androudi
- Department of Ophthalmology, University of Thessaly, 41110 Larissa, Greece
| | - Maria Anagnostouli
- First Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Maria-Eleftheria Evangelopoulos
- First Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece
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14
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Sadaghiani MS, Roman S, Wang Y, Rowe SP, Leal JP, Newsome SD, Solnes LB. Assessment of anti-GAD65-associated cerebellar ataxia with 18F-FDG cerebellar uptake: ROC analysis. Ann Nucl Med 2023; 37:528-534. [PMID: 37378737 DOI: 10.1007/s12149-023-01853-w] [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: 02/02/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023]
Abstract
OBJECTIVE Anti-glutamic acid decarboxylase 65 (anti-GAD65)-associated neurological disorders include two major phenotypes, namely Stiff person syndrome (SPS) and cerebellar ataxia (CA). Considering the potential for better outcomes with prompt immunotherapy, early detection of CA is crucial. Hence, a non-invasive imaging biomarker to detect CA with high specificity is desired. Herein, we evaluated brain 2-deoxy-2-[18F]fluoro-D-glucose (18F-FDG) PET in detecting CA based on cerebellar uptake using receiver operating characteristic (ROC) analysis and five-fold cross-validation. METHODS This study was based on STARD 2015 guidelines: thirty patients with anti-GAD65-associated neurological disorders, 11 of whom with CA were studied. Five test sets were created after patients were randomly sorted and divided into 5 equal folds. Each iteration included 24 patients for ROC analysis and 6 patients reserved for testing. The Z scores of left cerebellum, vermis, right cerebellum, and the average of the three regions were used in ROC analysis to determine areas with significant area under the curve (AUC). The cut-off values with high specificity were determined among the 24 patients in each iteration and tested against the reserved 6 patients. RESULTS Left cerebellum and average of the three regions showed significant AUC above 0.5 in all iterations with left cerebellum being the highest AUC in 4 iterations. Testing the cut-off values of the left cerebellum against the reserved 6 patients in each iteration showed 100% specificity with sensitivities ranging from 0 to 75%. CONCLUSIONS Cerebellar 18F-FDG PET uptake can differentiate CA phenotypes from patients with SPS with high specificity.
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Affiliation(s)
- Mohammad S Sadaghiani
- Division of Nuclear Medicine and Molecular Imaging, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N. Caroline St, Baltimore, MD, 21287, USA
| | - Samantha Roman
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Yujie Wang
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Steven P Rowe
- Division of Nuclear Medicine and Molecular Imaging, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N. Caroline St, Baltimore, MD, 21287, USA
| | - Jeffery P Leal
- Division of Nuclear Medicine and Molecular Imaging, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N. Caroline St, Baltimore, MD, 21287, USA
| | - Scott D Newsome
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Lilja B Solnes
- Division of Nuclear Medicine and Molecular Imaging, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N. Caroline St, Baltimore, MD, 21287, USA.
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15
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Tröscher AR, Mair KM, Verdú de Juan L, Köck U, Steinmaurer A, Baier H, Becker A, Blümcke I, Finzel M, Geis C, Höftberger R, Mawrin C, von Oertzen TJ, Pitsch J, Surges R, Voges B, Weis S, Winklehner M, Woermann F, Bauer J, Bien CG. Temporal lobe epilepsy with GAD antibodies: neurons killed by T cells not by complement membrane attack complex. Brain 2023; 146:1436-1452. [PMID: 36314080 PMCID: PMC10115353 DOI: 10.1093/brain/awac404] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 09/22/2022] [Accepted: 10/03/2022] [Indexed: 11/14/2022] Open
Abstract
Temporal lobe epilepsy (TLE) is one of the syndromes linked to antibodies against glutamic acid decarboxylase (GAD). It has been questioned whether 'limbic encephalitis with GAD antibodies' is a meaningful diagnostic entity. The immunopathogenesis of GAD-TLE has remained enigmatic. Improvement of immunological treatability is an urgent clinical concern. We retrospectively assessed the clinical, MRI and CSF course as well as brain tissue of 15 adult patients with GAD-TLE who underwent temporal lobe surgery. Brain tissue was studied by means of immunohistochemistry, multiplex fluorescent microscopy and transcriptomic analysis for inflammatory mediators and neuronal degeneration. In 10 patients, there was a period of mediotemporal swelling and T2 signal increase; in nine cases this occurred within the first 6 years after symptom onset. This resulted in unilateral or bilateral hippocampal sclerosis; three cases developed hippocampal sclerosis within the first 2 years. All CSF studies done within the first year (n = 6) revealed intrathecal synthesis of immunoglobulin G. Temporal lobe surgeries were done after a median disease duration of 9 years (range 3 weeks to 60 years). Only two patients became seizure-free. Brain parenchyma collected during surgery in the first 6 years revealed high numbers of plasma cells but no signs of antibody-mediated tissue damage. Even more dense was the infiltration by CD8+ cytotoxic T lymphocytes (CTLs) that were seen to locally proliferate. Further, a portion of these cells revealed an antigen-specific resident memory T cell phenotype. Finally, CTLs with cytotoxic granzyme B+ granules were also seen in microglial nodules and attached to neurons, suggesting a CTL-mediated destruction of these cells. With longer disease duration, the density of all lymphocytes decreased. Whole transcriptome analysis in early/active cases (but not in late/inactive stages) revealed 'T cell immunity' and 'Regulation of immune processes' as the largest overrepresented clusters. To a lesser extent, pathways associated with B cells and neuronal degeneration also showed increased representation. Surgically treated patients with GAD-TLE go through an early active inflammatory, 'encephalitic' stage (≤6 years) with CTL-mediated, antigen-driven neuronal loss and antibody-producing plasma cells but without signs of complement-mediated cell death. Subsequently, patients enter an apparently immunologically inactive or low-active stage with ongoing seizures, probably caused by the structural damage to the temporal lobe. 'Limbic encephalitis' with GAD antibodies should be subsumed under GAD-TLE. The early tissue damage explains why immunotherapy does not usually lead to freedom from seizures.
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Affiliation(s)
- Anna R Tröscher
- Department of Neuroimmunology, Centre for Brain Research, Medical University of Vienna, Vienna, Austria
- Department of Neurology I, Neuromed Campus, Kepler University Hospital, Linz, Austria
| | - Katharina M Mair
- Department of Neuroimmunology, Centre for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Laia Verdú de Juan
- Department of Neuroimmunology, Centre for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Ulrike Köck
- Department of Neuroimmunology, Centre for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Anja Steinmaurer
- Department of Neuroimmunology, Centre for Brain Research, Medical University of Vienna, Vienna, Austria
| | | | - Albert Becker
- Section for Translational Epilepsy Research Department of Neuropathology, University Hospital Bonn, Bonn, Germany
| | - Ingmar Blümcke
- Department of Neuropathology, Universitätsklinikum Erlangen, Erlangen, Germany
| | | | - Christian Geis
- Section Translational Neuroimmunology, Department of Neurology, University Hospital Jena, Jena, Germany
| | - Romana Höftberger
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - Christian Mawrin
- Department of Neuropathology, University Hospital Magdeburg, Magdeburg, Germany
| | - Tim J von Oertzen
- Department of Neurology I, Neuromed Campus, Kepler University Hospital, Linz, Austria
| | - Julika Pitsch
- Department of Epileptology, University Hospital Bonn, Bonn, Germany
| | - Rainer Surges
- Department of Epileptology, University Hospital Bonn, Bonn, Germany
| | - Berthold Voges
- Hamburg Epilepsy Centre, Protestant Hospital Alsterdorf, Department of Neurology and Epileptology, Hamburg, Germany
| | - Serge Weis
- Division of Neuropathology, Department of Pathology and Molecular Pathology, Neuromed Campus, Kepler University Hospital Linz, Linz, Austria
| | - Michael Winklehner
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - Friedrich Woermann
- Department of Neuroimmunology, Centre for Brain Research, Medical University of Vienna, Vienna, Austria
- Epilepsy Centre Bodensee, Ravensburg, Germany
| | - Jan Bauer
- Department of Neuroimmunology, Centre for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Christian G Bien
- Department of Epileptology (Krankenhaus Mara), Medical School, Campus Bielefeld-Bethel, Bielefeld University, Bielefeld, Germany
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Cecchin A, Reynolds C, Ali S, Hissaria P. Evaluation of glutamic acid decarboxylase (GAD) 65 antibody detection methods for neurological and diabetic investigation in an Australian diagnostic laboratory. Pathology 2023; 55:538-542. [PMID: 37037719 DOI: 10.1016/j.pathol.2023.01.010] [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: 06/21/2022] [Revised: 12/23/2022] [Accepted: 01/14/2023] [Indexed: 04/12/2023]
Abstract
The role of anti-glutamic acid decarboxylase (GAD) 65 autoantibodies in autoimmune neurological conditions is evolving, but testing recommendations remain unchanged in Australia with GAD enzyme-linked immunosorbent assay (ELISA) and immunoblot as the only two Therapeutic Goods Administration approved testing methods available in Australia. Common practice is for use of ELISA in diagnosis of type 1 diabetes mellitus (T1DM) and use of immunoblot for diagnosis of GAD65-associated neurological disease. We observed a cohort of patients with negative immunoblot results and positive ELISA in the context of GAD-associated neurological disease without T1DM. In the absence of robust consensus guidelines on preferred testing modalities, we sought to determine if ELISA could have a superior role in the diagnosis of GAD-associated neurological disease when compared to immunoblot in this paper. We tested for anti-GAD65 autoantibodies on 55 patient samples, 40 samples requested for neurological disease and 15 type 1 diabetes samples with detectable anti-GAD65, using two testing platforms: Euroimmun anti-GAD enzyme-linked immunosorbent assay (ELISA) and. Euroimmun EuroLine immunoblot for paraneoplastic neurologic syndromes. These results were correlated against the clinical scenario. Positive ELISA results had a sensitivity of 100% and specificity of 91% for GAD65-related neurological disease. Immunoblot showed sensitivity of 43% and specificity of 76% for GAD65-related neurological disease. ELISA proved more sensitive and specific for GAD65-related neurological disease compared to immunoblot, raising questions about the role of this testing modality in neurological disease. We propose that ELISA should be used as a sole diagnostic method for all GAD65 antibody-related neurological disease over immunoblot. The presence of anti-GAD65 antibody on immunoblot is of doubtful clinical significance.
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Affiliation(s)
| | - Claire Reynolds
- SA Pathology, Adelaide, SA, Australia; Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Syed Ali
- SA Pathology, Adelaide, SA, Australia; Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Pravin Hissaria
- SA Pathology, Adelaide, SA, Australia; Royal Adelaide Hospital, Adelaide, SA, Australia; University of Adelaide, Adelaide, SA, Australia.
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17
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Lin CYR, Kuo SH. Ataxias: Hereditary, Acquired, and Reversible Etiologies. Semin Neurol 2023; 43:48-64. [PMID: 36828010 DOI: 10.1055/s-0043-1763511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
A variety of etiologies can cause cerebellar dysfunction, leading to ataxia symptoms. Therefore, the accurate diagnosis of the cause for cerebellar ataxia can be challenging. A step-wise investigation will reveal underlying causes, including nutritional, toxin, immune-mediated, genetic, and degenerative disorders. Recent advances in genetics have identified new genes for both autosomal dominant and autosomal recessive ataxias, and new therapies are on the horizon for targeting specific biological pathways. New diagnostic criteria for degenerative ataxias have been proposed, specifically for multiple system atrophy, which will have a broad impact on the future clinical research in ataxia. In this article, we aim to provide a review focus on symptoms, laboratory testing, neuroimaging, and genetic testing for the diagnosis of cerebellar ataxia causes, with a special emphasis on recent advances. Strategies for the management of cerebellar ataxia is also discussed.
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Affiliation(s)
- Chi-Ying R Lin
- Department of Neurology, Parkinson's Disease Center and Movement Disorders Clinic, Baylor College of Medicine, Houston, Texas.,Department of Neurology, Alzheimer's Disease and Memory Disorders Center, Baylor College of Medicine, Houston, Texas
| | - Sheng-Han Kuo
- Department of Neurology, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, New York.,Initiative for Columbia Ataxia and Tremor, Columbia University Irving Medical Center, New York, New York
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18
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Biljecki M, Eisenhut K, Beltrán E, Winklmeier S, Mader S, Thaller A, Eichhorn P, Steininger P, Flierl-Hecht A, Lewerenz J, Kümpfel T, Kerschensteiner M, Meinl E, Thaler FS. Antibodies Against Glutamic Acid Decarboxylase 65 Are Locally Produced in the CSF and Arise During Affinity Maturation. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2023; 10:10/3/e200090. [PMID: 36823135 PMCID: PMC9969496 DOI: 10.1212/nxi.0000000000200090] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 12/12/2022] [Indexed: 02/25/2023]
Abstract
BACKGROUND AND OBJECTIVES Antibodies (Abs) against the cytoplasmic protein glutamic acid decarboxylase 65 (GAD65) are detected in patients with neurologic syndromes together referred to as GAD65-Ab spectrum disorders. The response of some of these patients to plasma exchange or immunoglobulins indicates that GAD65-Abs could contribute to disease pathogenesis at least at some stages of disease. However, the involvement of GAD65-reactive B cells in the CNS is incompletely understood. METHODS We studied 7 patients with high levels of GAD65-Abs and generated monoclonal Abs (mAbs) derived from single cells in the CSF. Sequence characteristics, reactivity to GAD65, and the role of somatic hypermutations of the mAbs were analyzed. RESULTS Twelve CSF-derived mAbs were generated originating from 3 patients with short disease duration, and 7/12 of these mAbs (58%) were GAD65 reactive in at least 1 detection assay. Four of 12 (33%) were definitely positive in all 3 detection assays. The intrathecal anti-GAD65 response was polyclonal. GAD65-Abs were mostly of the IgG1 subtype and had undergone affinity maturation. Reversion of 2 GAD65-reactive mAbs to their corresponding germline-encoded unmutated common ancestors abolished GAD65 reactivity. DISCUSSION GAD65-specific B cells are present in the CNS and represent a sizable fraction of CSF B cells early in the disease course. The anti-GAD65 response in the CSF is polyclonal and shows evidence of antigen-driven affinity maturation required for GAD65 recognition. Our data support the hypothesis that the accumulation of GAD65-specific B cells and plasma cells in the CSF is an important feature of early disease stages.
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Affiliation(s)
- Michelle Biljecki
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Katharina Eisenhut
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Eduardo Beltrán
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Stephan Winklmeier
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Simone Mader
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Anna Thaller
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Peter Eichhorn
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Philipp Steininger
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Andrea Flierl-Hecht
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Jan Lewerenz
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Tania Kümpfel
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Martin Kerschensteiner
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Edgar Meinl
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany
| | - Franziska S Thaler
- From the Institute of Clinical Neuroimmunology (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), University Hospital, Ludwig-Maximilians-Universität Munich; Biomedical Center (BMC) (M.B., K.E., E.B., S.W., S.M., A.T., A.F.-H., T.K., M.K., E.M., F.S.T.), Medical Faculty, Ludwig-Maximilians-Universität Munich, Martinsried; Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität Munich (M.B., K.E.); Munich Cluster for Systems Neurology (SyNergy) (E.B., M.K., F.S.T.); Innate Immunity Unit (A.T.), Institut Pasteur, Inserm U1223, Paris, France; Université de Paris (A.T.), Sorbonne Paris Cité, France; Institute of Laboratory Medicine (P.E.), University Hospital, LMU Munich; Institute of Clinical and Molecular Virology (P.S.), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg; and Department of Neurology (J.L.), University Hospital Ulm, Germany.
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Mitoma H, Manto M. Advances in the Pathogenesis of Auto-antibody-Induced Cerebellar Synaptopathies. CEREBELLUM (LONDON, ENGLAND) 2023; 22:129-147. [PMID: 35064896 PMCID: PMC9883363 DOI: 10.1007/s12311-021-01359-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/12/2021] [Indexed: 02/07/2023]
Abstract
The presence of auto-antibodies that target synaptic machinery proteins was documented recently in immune-mediated cerebellar ataxias. The autoantigens include glutamic acid decarboxylase 65 (GAD65), voltage-gated Ca2+ channel (VGCC), metabotropic glutamate receptor type 1 (mGluR1), and glutamate receptor delta (GluRdelta). GAD65 is involved in the synthesis, packaging, and release of GABA, whereas the other three play important roles in the induction of long-term depression (LTD). Thus, the auto-antibodies toward these synaptic molecules likely impair fundamental synaptic machineries involved in unique functions of the cerebellum, potentially leading to the development of cerebellar ataxias (CAs). This concept has been substantiated recently by a series of physiological studies. Anti-GAD65 antibody (Ab) acts on the terminals of inhibitory neurons that suppress GABA release, whereas anti-VGCC, anti-mGluR1, and anti-GluR Abs impair LTD induction. Notably, the mechanisms that link synaptic dysfunction with the manifestations of CAs can be explained by disruption of the "internal models." The latter can be divided into three levels. First, since chained inhibitory neurons shape the output signals through the mechanism of disinhibition/inhibition, impairments of GABA release and LTD distort the conversion process from the "internal model" to the output signals. Second, these antibodies impair the induction of synaptic plasticity, rebound potentiation, and LTD, on Purkinje cells, resulting in loss of restoration and compensation of the distorted "internal models." Finally, the cross-talk between glutamate and microglia/astrocytes could involve a positive feedback loop that accelerates excitotoxicity. This mini-review summarizes the pathophysiological mechanisms and aims to establish the basis of "auto-antibody-induced cerebellar synaptopathies."
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Affiliation(s)
- Hiroshi Mitoma
- Department of Medical Education, Tokyo Medical University, Tokyo, Japan
| | - Mario Manto
- Unité des Ataxies Cérébelleuses, Service de Neurologie, Médiathèque Jean Jacquy, CHU-Charleroi, 6000 Charleroi, Belgium ,Service des Neurosciences, University of Mons, 7000 Mons, Belgium
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Gaig C, Graus F. Motor symptoms in nonparaneoplastic CNS disorders associated with neural antibodies. HANDBOOK OF CLINICAL NEUROLOGY 2023; 196:277-294. [PMID: 37620074 DOI: 10.1016/b978-0-323-98817-9.00004-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Motor symptoms are common, and sometimes predominant, in almost all nonparaneoplastic CNS disorders associated with neural antibodies. These CNS disorders can be classified into five groups: (1) Autoimmune encephalitis with antibodies against synaptic receptors, (2) cerebellar ataxias associated with neuronal antibodies that mostly target intracellular antigens. (3) Stiff-person syndrome and progressive encephalomyelitis with rigidity and myoclonus which have antibodies against glutamic acid decarboxylase and glycine receptor, respectively. Both diseases have in common the presence of predominant muscle stiffness and rigidity. (4) Three diseases associated with glial antibodies. Two present motor symptoms mainly due to the involvement of the spinal cord: neuromyelitis optica spectrum disorders with aquaporin-4 antibodies and myelin oligodendrocyte glycoprotein antibody-associated disease. The third disorder is the meningoencephalitis associated with glial fibrillar acidic protein antibodies which frequently also presents a myelopathy. (5) Two antibody-related diseases which are characterized by prominent sleep dysfunction: anti-IgLON5 disease, a disorder that frequently presents a variety of movement disorders, and Morvan syndrome associated with contactin-associated protein-like 2 antibodies and clinical manifestations of peripheral nerve hyperexcitability. In this chapter, we describe the main clinical features of these five groups with particular emphasis on the presence, frequency, and types of motor symptoms.
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Affiliation(s)
- Carles Gaig
- Neurology Service, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Francesc Graus
- Neuroimmunology Program, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
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21
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Abstract
Detection of autoantibodies against neurons and glia cells has brought about the early and specific diagnosis of autoimmune encephalitis in patients with variable neurological and psychiatric symptoms. Growing knowledge not only resulted in profound changes in treatment algorithms including immunotherapy but also in the understanding of disease mechanisms and etiological factors. The still increasing numbers of new autoantibodies calls for continuous updates on the state of the art in antibody diagnostics, frequencies of associated tumors and the clinical spectrum linked to each antibody, which can range from mood changes, cognitive impairment and epileptic seizures to abnormal movements, autonomic dysfunction and impaired levels of consciousness. This article summarizes the recent developments in the predominant clinical presentations of autoimmune encephalitis patients in imaging and cerebrospinal fluid diagnostics and also in prognostic markers, in the establishment of innovative immunotherapies, in the use of diagnostic pathways even before the results of the antibody tests are available and the understanding of the autoimmune etiology.
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22
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Stezin A, Pal PK. Treatable Ataxias: How to Find the Needle in the Haystack? J Mov Disord 2022; 15:206-226. [PMID: 36065614 DOI: 10.14802/jmd.22069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/05/2022] [Indexed: 11/24/2022] Open
Abstract
Treatable ataxias are a group of ataxic disorders with specific treatments. These disorders include genetic and metabolic disorders, immune-mediated ataxic disorders, and ataxic disorders associated with infectious and parainfectious etiology, vascular causes, toxins and chemicals, and endocrinopathies. This review provides a comprehensive overview of different treatable ataxias. The major metabolic and genetic treatable ataxic disorders include ataxia with vitamin E deficiency, abetalipoproteinemia, cerebrotendinous xanthomatosis, Niemann-Pick disease type C, autosomal recessive cerebellar ataxia due to coenzyme Q10 deficiency, glucose transporter type 1 deficiency, and episodic ataxia type 2. The treatment of these disorders includes the replacement of deficient cofactors and vitamins, dietary modifications, and other specific treatments. Treatable ataxias with immune-mediated etiologies include gluten ataxia, anti-glutamic acid decarboxylase antibody-associated ataxia, steroid-responsive encephalopathy associated with autoimmune thyroiditis, Miller-Fisher syndrome, multiple sclerosis, and paraneoplastic cerebellar degeneration. Although dietary modification with a gluten-free diet is adequate in gluten ataxia, other autoimmune ataxias are managed by short-course steroids, plasma exchange, or immunomodulation. For autoimmune ataxias secondary to malignancy, treatment of tumor can reduce ataxic symptoms. Chronic alcohol consumption, antiepileptics, anticancer drugs, exposure to insecticides, heavy metals, and recreational drugs are potentially avoidable and treatable causes of ataxia. Infective and parainfectious causes of cerebellar ataxias include acute cerebellitis, postinfectious ataxia, Whipple's disease, meningoencephalitis, and progressive multifocal leukoencephalopathy. These disorders are treated with steroids and antibiotics. Recognizing treatable disorders is of paramount importance when dealing with ataxias given that early treatment can prevent permanent neurological sequelae.
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Affiliation(s)
- Albert Stezin
- Department of Neurology, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India.,Centre for Brain Research, Indian Institute of Science, Bengaluru, India
| | - Pramod Kumar Pal
- Department of Neurology, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India
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Muñiz-Castrillo S, Vogrig A, Ciano-Petersen NL, Villagrán-García M, Joubert B, Honnorat J. Novelties in Autoimmune and Paraneoplastic Cerebellar Ataxias: Twenty Years of Progresses. CEREBELLUM (LONDON, ENGLAND) 2022; 21:573-591. [PMID: 35020135 DOI: 10.1007/s12311-021-01363-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
Major advances in our knowledge concerning autoimmune and paraneoplastic cerebellar ataxias have occurred in the last 20 years. The discovery of several neural antibodies represents an undeniable contribution to this field, especially those serving as good biomarkers of paraneoplastic neurological syndromes and those showing direct pathogenic effects. Yet, many patients still lack detectable or known antibodies, and also many antibodies have only been reported in few patients, which makes it difficult to define in detail their clinical value. Nevertheless, a notable progress has additionally been made in the clinical characterization of patients with the main neural antibodies, which, although typically present with a subacute pancerebellar syndrome, may also show either hyperacute or chronic onsets that complicate the differential diagnoses. However, prodromal and transient features could be useful clues for an early recognition, and extracerebellar involvement may also be highly indicative of the associated antibody. Moreover, important advances in our understanding of the pathogenesis of cerebellar ataxias include the description of antibody effects, especially those targeting cell-surface antigens, and first attempts to isolate antigen-specific T-cells. Furthermore, genetic predisposition seems relevant, although differently involved according to cancer association, with particular HLA observed in non-paraneoplastic cases and genetic abnormalities in the tumor cells in paraneoplastic ones. Finally, immune checkpoint inhibitors used as cancer immunotherapy may rarely induce cerebellar ataxias, but even this undesirable effect may in turn serve to shed some light on their physiopathology. Herein, we review the principal novelties of the last 20 years regarding autoimmune and paraneoplastic cerebellar ataxias.
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Affiliation(s)
- Sergio Muñiz-Castrillo
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, INSERM U1217, CNRS, UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Alberto Vogrig
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, INSERM U1217, CNRS, UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Nicolás Lundahl Ciano-Petersen
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, INSERM U1217, CNRS, UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Macarena Villagrán-García
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, INSERM U1217, CNRS, UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Bastien Joubert
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, INSERM U1217, CNRS, UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Jérôme Honnorat
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France.
- SynatAc Team, Institut NeuroMyoGène, INSERM U1217, CNRS, UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France.
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Martin Prieto J, Rouco Axpe I, Moreno Estébanez A, Rodríguez-Antigüedad Zarrantz A. Rapid cognitive decline associated with anti-glutamic acid decarboxylase antibodies: A case repot. Neurologia 2022; 37:151-152. [PMID: 34034919 DOI: 10.1016/j.nrl.2021.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 11/22/2022] Open
Affiliation(s)
- J Martin Prieto
- Servicio de Neurología, Hospital Universitario de Cruces, Barakaldo, Bizkaia, España.
| | - I Rouco Axpe
- Servicio de Neurología, Hospital Universitario de Cruces, Barakaldo, Bizkaia, España
| | - A Moreno Estébanez
- Servicio de Neurología, Hospital Universitario de Cruces, Barakaldo, Bizkaia, España
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25
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Dimova P, Minkin K. Case Report: Multisystem Autoimmune and Overlapping GAD65-Antibody-Associated Neurological Disorders With Beneficial Effect of Epilepsy Surgery and Rituximab Treatment. Front Neurol 2022; 12:756668. [PMID: 35126284 PMCID: PMC8810502 DOI: 10.3389/fneur.2021.756668] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 12/13/2021] [Indexed: 12/18/2022] Open
Abstract
Glutamic acid decarboxylase (GAD) antibodies are associated with disabling conditions such as stiff person syndrome, temporal lobe epilepsy (TLE), limbic encephalitis, cerebellar ataxia (CA), and ocular movement disorders, which are usually chronic and difficult to treat. GAD-related TLE has poor response to anti-seizure medications and immune therapies, and epilepsy surgery is rarely successful. We report on a 47-year-old female with history of migraine, autoimmune thyroid disease, ankylosing spondylitis, and drug-resistant TLE. A video electroencephalography recorded frequent seizures with temporo-insular semiology, correlating to left temporal epileptiform activity and left mesiotemporal hyperintensity on magnetic resonance imaging. GAD autoimmunity was confirmed by very high GAD antibody titers in serum and cerebrospinal fluid. Steroids, immunoglobulins, and cyclophosphamide had no effect, and selective left amygdalectomy was performed based on very restricted hypermetabolism on positron-emission tomography. After transient seizure freedom, significant epilepsy improvement was observed in spite of memory decline. Transient worsening was noted 1 year later during diabetes mellitus manifestation and 5 years later during presentation of progressive CA, which stabilized on rituximab treatment. We believe this case illustrates the diversity and the frequent overlap of GAD-associated disorders, the need of early and aggressive immunotherapy in severe patients, as well as the possible benefit from epilepsy surgery in some GAD-TLE.
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Affiliation(s)
- Petia Dimova
- Epileptology Unit at Epilepsy Surgery Center, Department of Neurosurgery, St. Ivan Rilski University Hospital, Sofia, Bulgaria
- *Correspondence: Petia Dimova
| | - Krassimir Minkin
- Functional and Epilepsy Surgery Center, Department of Neurosurgery, St. Ivan Rilski University Hospital, Sofia, Bulgaria
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Kauppila LA, Ten Holter SE, van de Warrenburg B, Bloem BR. A Guide for the Differential Diagnosis of Multiple System Atrophy in Clinical Practice. JOURNAL OF PARKINSON'S DISEASE 2022; 12:2015-2027. [PMID: 36057832 PMCID: PMC9661336 DOI: 10.3233/jpd-223392] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Multiple system atrophy (MSA) is a sporadic and progressive neurodegenerative disorder with a complex differential diagnosis. A range of disorders- also of nondegenerative etiology- can mimic MSA, expanding its differential diagnosis. Both misdiagnosis and diagnostic delays are relatively common in clinical practice. A correct diagnosis is vital for daily clinical practice, in order to facilitate proper counselling and to timely install therapies in treatable disorders that mimic MSA. A correct diagnosis is also essential for including properly classified individuals into research studies that aim to better understand the pathophysiology of MSA, to develop specific biomarkers or to evaluate novel symptomatic or disease-modifying therapies. Here, we offer some practical guidance to support the diagnostic process, by highlighting conditions that may be considered as MSA lookalikes, by emphasizing some key clinical aspects of these mimics, and by discussing several useful ancillary diagnostic tests.
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Affiliation(s)
- Linda Azevedo Kauppila
- CNS – Campus Neurológico, Lisbon, Portugal
- Department of Neurology, Center of Expertise for Parkinson & Movement Disorders, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Susanne E.M. Ten Holter
- Department of Neurology, Center of Expertise for Parkinson & Movement Disorders, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Bart van de Warrenburg
- Department of Neurology, Center of Expertise for Parkinson & Movement Disorders, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Bastiaan R. Bloem
- Department of Neurology, Center of Expertise for Parkinson & Movement Disorders, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
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Martin Prieto J, Rouco Axpe I, Moreno Estébanez A, Rodríguez-Antigüedad Zarrantz A. Rapid cognitive decline associated with anti-glutamic acid decarboxylase antibodies: a case report. NEUROLOGÍA (ENGLISH EDITION) 2022; 37:151-152. [PMID: 34969633 DOI: 10.1016/j.nrleng.2021.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 11/30/2022] Open
Affiliation(s)
- J Martin Prieto
- Servicio de Neurología, Hospital Universitario de Cruces, Barakaldo, Bizkaia, Spain.
| | - I Rouco Axpe
- Servicio de Neurología, Hospital Universitario de Cruces, Barakaldo, Bizkaia, Spain
| | - A Moreno Estébanez
- Servicio de Neurología, Hospital Universitario de Cruces, Barakaldo, Bizkaia, Spain
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Ramachandran A, Vazhappully AG, Jose J, Das S, Balaram N. Anti-GAD65 Related Neurological Disorder Presenting as Isolated Hemiataxia: A New Report with Review of Previously Published Patients. Ann Indian Acad Neurol 2022; 25:935-938. [PMID: 36561005 PMCID: PMC9764933 DOI: 10.4103/aian.aian_148_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/08/2022] [Accepted: 03/20/2022] [Indexed: 12/25/2022] Open
Affiliation(s)
- Aparna Ramachandran
- Department of Neurology, Government Medical College, Kozhikode, Kerala, India
| | - Abdul Gafoor Vazhappully
- Department of Neurology, Government Medical College, Kozhikode, Kerala, India,Address for correspondence: Dr. Abdul Gafoor Vazhappully, Department of Neurology, Government Medical College, Kozhikode, Kerala - 673 008, India. E-mail:
| | - James Jose
- Department of Neurology, Government Medical College, Kozhikode, Kerala, India
| | - Smita Das
- Department of Neurology, Government Medical College, Kozhikode, Kerala, India
| | - Neetha Balaram
- Department of Neurology, Government Medical College, Kozhikode, Kerala, India
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29
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Thaler FS, Zimmermann L, Kammermeier S, Strippel C, Ringelstein M, Kraft A, Sühs KW, Wickel J, Geis C, Markewitz R, Urbanek C, Sommer C, Doppler K, Penner L, Lewerenz J, Rößling R, Finke C, Prüss H, Melzer N, Wandinger KP, Leypoldt F, Kümpfel T. Rituximab Treatment and Long-term Outcome of Patients With Autoimmune Encephalitis: Real-world Evidence From the GENERATE Registry. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2021; 8:e1088. [PMID: 34599001 PMCID: PMC8488759 DOI: 10.1212/nxi.0000000000001088] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 08/23/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND OBJECTIVES To determine the real-world use of rituximab in autoimmune encephalitis (AE) and to correlate rituximab treatment with the long-term outcome. METHODS Patients with NMDA receptor (NMDAR)-AE, leucine-rich glioma-inactivated-1 (LGI1)- AE, contactin-associated protein-like-2 (CASPR2)-AE, or glutamic acid decarboxylase 65 (GAD65) disease from the GErman Network for Research on AuToimmune Encephalitis who had received at least 1 rituximab dose and a control cohort of non-rituximab-treated patients were analyzed retrospectively. RESULTS Of the 358 patients, 163 (46%) received rituximab (NMDAR-AE: 57%, CASPR2-AE: 44%, LGI1-AE: 43%, and GAD65 disease: 37%). Rituximab treatment was initiated significantly earlier in NMDAR- and LGI1-AE (median: 54 and 155 days from disease onset) compared with CASPR2-AE or GAD65 disease (median: 632 and 1,209 days). Modified Rankin Scale (mRS) scores improved significantly in patients with NMDAR-AE, both with and without rituximab treatment. Although being more severely affected at baseline, rituximab-treated patients with NMDAR-AE more frequently reached independent living (mRS score ≤2) (94% vs 88%). In LGI1-AE, rituximab-treated and nontreated patients improved, whereas in CASPR2-AE, only rituximab-treated patients improved significantly. No improvement was observed in patients with GAD65 disease. A significant reduction of the relapse rate was observed in rituximab-treated patients (5% vs 13%). Detection of NMDAR antibodies was significantly associated with mRS score improvement. A favorable outcome was also observed with early treatment initiation. DISCUSSION We provide real-world data on immunosuppressive treatments with a focus on rituximab treatment for patients with AE in Germany. We suggest that early and short-term rituximab therapy might be an effective and safe treatment option in most patients with NMDAR-, LGI1-, and CASPR2-AE. CLASS OF EVIDENCE This study provides Class IV evidence that rituximab is an effective treatment for some types of AE.
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Affiliation(s)
- Franziska S. Thaler
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Luise Zimmermann
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Stefan Kammermeier
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Christine Strippel
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Marius Ringelstein
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Andrea Kraft
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Kurt-Wolfram Sühs
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Jonathan Wickel
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Christian Geis
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Robert Markewitz
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Christian Urbanek
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Claudia Sommer
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Kathrin Doppler
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Loana Penner
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Jan Lewerenz
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Rosa Rößling
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Carsten Finke
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Harald Prüss
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Nico Melzer
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Klaus-Peter Wandinger
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Frank Leypoldt
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - Tania Kümpfel
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
| | - on behalf of the German Network for Research on Autoimmune Encephalitis (GENERATE)
- From the Institute of Clinical Neuroimmunology (F.S.T., T.K.), University Hospital and Biomedical Center, Ludwig-Maximilians-Universität, Munich; Section of Translational Neuroimmunology (L.Z., J.W., C.G.), Department of Neurology, Jena University Hospital, Jena; Department of Neurology (S.K.), University Hospital, Ludwig-Maximilians-University, Munich; Department of Neurology with Institute of Translational Neurology (Christine Strippel, N.M.), University of Muenster; Department of Neurology (M.R., N.M.), Medical Faculty, Heinrich Heine University Düsseldorf; Department of Neurology (M.R.), Center for Neurology and Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf; Department of Neurology Martha-Maria Hospital (A.K.), Halle/Saale, Academic Hospital of University Halle-Wittenberg; Department of Neurology (K.-W.S.), Hannover Medical School; Department of Neurology (R.M., K.-P.W.), University Hospital Schleswig-Holstein, Lübeck; Department of Neurology (C.U.), Klinikum der Stadt Ludwigshafen a. Rh. gGmbH, Ludwigshafen; Department of Neurology (C. Sommer, K.D.), University Hospital Würzburg; Department of Neurology (L.P., J.L.), Ulm University; Department of Neurology and Experimental Neurology (R.R., C.F., H.P.), Charité - Universitätsmedizin Berlin; German Center for Neurodegenerative Diseases (DZNE) Berlin (R.R., H.P.); Neuroimmunology Section (K.-P.W., F.L.), Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel, Lübeck; and Department of Neurology (F.L.), Christian-Albrechts-Universität Kiel, Germany
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Wang Y, Sadaghiani MS, Tian F, Fitzgerald KC, Solnes L, Newsome SD. Brain and Muscle Metabolic Changes by FDG-PET in Stiff Person Syndrome Spectrum Disorders. Front Neurol 2021; 12:692240. [PMID: 34603180 PMCID: PMC8484315 DOI: 10.3389/fneur.2021.692240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 07/30/2021] [Indexed: 11/30/2022] Open
Abstract
Objective: To report clinical characteristics and fluorodeoxyglucose positron emission tomography (FDG-PET) findings in the brain and muscles of individuals with stiff person syndrome (SPS) spectrum disorders (SPSSDs). Methods: Retrospective cohort study from 1997 to 2018 at Johns Hopkins Hospital identified 170 individuals with SPS or cerebellar ataxia (CA) associated with anti-glutamic acid decarboxylase (anti-GAD)-65 antibodies. Fifty-one underwent FDG-PET, with 50 involving the body and 30 with dedicated brain acquisition. The clinical and immunological profiles were extracted via medical record review. The brain scans were analyzed quantitatively using the NeuroQ software, with comparison with an averaged normal database. The body scans were reviewed qualitatively by a blinded nuclear medicine radiologist. Results: Mean age of symptom onset was 41.5 years (range 12–75 years). Majority were female (68%) and White (64%). Of the patients, 82% had SPS (majority being classic phenotype), and 18% had CA. Three had a paraneoplastic process. Forty-seven had serum anti-GAD, two with anti-amphiphysin, and one with anti-glycine receptor antibodies. Brain metabolic abnormalities were seen in both SPS and CA, with significant differences between the groups noted in the right superior frontal cortex, right sensorimotor cortex, left inferior parietal cortex, bilateral thalami, vermis, and left cerebellum. Of the patients, 62% demonstrated muscle hypermetabolism, most commonly bilateral, involving the upper extremities or axial muscles. Neither brain nor muscle metabolism was correlated with functional outcomes nor treatments. Conclusions: Metabolic changes as seen by FDG-PET are present in the brain and muscle in many individuals with SPSSD. Future studies are needed to assess whether FDG-PET can help aid in the diagnosis and/or monitoring of individuals with SPSSD.
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Affiliation(s)
- Yujie Wang
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Mohammad S Sadaghiani
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Fan Tian
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Kathryn C Fitzgerald
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Lilja Solnes
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Scott D Newsome
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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AlMuslamani A, Taha M. Thalamic Lesions in a Toddler with Glutamic Acid Decarboxylase Autoimmune Encephalitis. JOURNAL OF PEDIATRIC NEUROLOGY 2021. [DOI: 10.1055/s-0040-1716912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractWe present a child with glutamic acid decarboxylase (GAD) autoimmune encephalitis (AE) with bilateral thalamic lesions on magnetic resonance imaging (MRI) of the brain. A healthy 21-month-old girl, after superrefractory status epilepticus (SE) and fever developed dyskinesia and ataxia, which we subsequently diagnosed as GAD AE. She showed remarkable response to treatment with methylprednisolone and intravenous immunoglobulin (IVIg). Following an initial normal MRI of her brain, a further brain imaging showed bilateral thalamic lesions. This is an unusual finding since brain imaging abnormalities, when found in GAD AE, mostly involve the mesial temporal lobe structures. Thalamic lesions in GAD AE have not been reported previously.
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Affiliation(s)
- Ahood AlMuslamani
- Department of Pediatrics, King Hamad University Hospital, Muharraq, Kingdom of Bahrain
| | - Mohamed Taha
- Department of Pediatrics, King Hamad University Hospital, Muharraq, Kingdom of Bahrain
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Muñiz-Castrillo S, Vogrig A, Joubert B, Pinto AL, Gonçalves D, Chaumont H, Rogemond V, Picard G, Fabien N, Honnorat J. Transient Neurological Symptoms Preceding Cerebellar Ataxia with Glutamic Acid Decarboxylase Antibodies. THE CEREBELLUM 2021; 19:715-721. [PMID: 32592031 DOI: 10.1007/s12311-020-01159-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A prompt diagnosis and treatment of patients with autoimmune cerebellar ataxia (CA) with antibodies against glutamic acid decarboxylase (GAD-Abs) may lead to a better prognosis. Herein, we report prodromal transient neurological symptoms that should raise clinical suspicion of CA with GAD-Abs. We initially identified a 70-year-old man who presented a first acute episode of vertigo, diplopia, and ataxia lasting 2 weeks. Two months later, he experienced a similar episode along with new-onset gaze-evoked nystagmus. After 4 months, downbeat nystagmus, left limb dysmetria, and gait ataxia progressively appeared, and an autoimmune CA was diagnosed based on the positivity of GAD-Abs in serum and cerebrospinal fluid (CSF). We searched retrospectively for similar presentations in a cohort of 31 patients diagnosed with CA and GAD-Abs. We found 11 (35.4%) patients (all women, median age 62 years; 8/11 [72.7%] with autoimmune comorbidities) with transient neurological symptoms antedating CA onset by a median of 3 months, including vertigo in 9 (81.8%; described as paroxysmal in 8) and fluctuating diplopia in 3 (27.3%) patients. The identification of transient neurological symptoms of unknown etiology, such as paroxysmal vertigo and fluctuating diplopia, should lead to GAD-Abs testing in serum and CSF, especially in patients with autoimmune comorbidities.
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Affiliation(s)
- Sergio Muñiz-Castrillo
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France
- Institut NeuroMyoGène, INSERM U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
- Neurology Department, Hospital Universitario Infanta Cristina, Madrid, Spain
| | - Alberto Vogrig
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France
- Institut NeuroMyoGène, INSERM U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Bastien Joubert
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France
- Institut NeuroMyoGène, INSERM U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Anne-Laurie Pinto
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France
- Institut NeuroMyoGène, INSERM U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - David Gonçalves
- Immunology Department, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Lyon, France
| | - Hugo Chaumont
- Neurology Department, Centre Hospitalier Universitaire de la Guadeloupe, Point-à-Pitre, France
| | - Véronique Rogemond
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France
- Institut NeuroMyoGène, INSERM U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Géraldine Picard
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France
- Institut NeuroMyoGène, INSERM U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Nicole Fabien
- Immunology Department, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Lyon, France
| | - Jérôme Honnorat
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France.
- Institut NeuroMyoGène, INSERM U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France.
- Service de Neuro-Oncologie, Hôpital Neurologique Pierre Wertheimer, 59 Boulevard Pinel, 69677, Bron Cedex, France.
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33
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Balint B. Are Antibody Panels Under-Utilized in Movement Disorders Diagnosis? Yes. Mov Disord Clin Pract 2021; 8:341-346. [PMID: 33816660 PMCID: PMC8015910 DOI: 10.1002/mdc3.13171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
- Bettina Balint
- Department of Neurology University Hospital Heidelberg Heidelberg Germany
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Budhram A, Sechi E, Flanagan EP, Dubey D, Zekeridou A, Shah SS, Gadoth A, Naddaf E, McKeon A, Pittock SJ, Zalewski NL. Clinical spectrum of high-titre GAD65 antibodies. J Neurol Neurosurg Psychiatry 2021; 92:jnnp-2020-325275. [PMID: 33563803 PMCID: PMC8142435 DOI: 10.1136/jnnp-2020-325275] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/07/2020] [Accepted: 01/04/2021] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To determine clinical manifestations, immunotherapy responsiveness and outcomes of glutamic acid decarboxylase-65 (GAD65) neurological autoimmunity. METHODS We identified 323 Mayo Clinic patients with high-titre (>20 nmol/L in serum) GAD65 antibodies out of 380 514 submitted anti-GAD65 samples (2003-2018). Patients classified as having GAD65 neurological autoimmunity after chart review were analysed to determine disease manifestations, immunotherapy responsiveness and predictors of poor outcome (modified Rankin score >2). RESULTS On review, 108 patients were classified as not having GAD65 neurological autoimmunity and 3 patients had no more likely alternative diagnoses but atypical presentations (hyperkinetic movement disorders). Of remaining 212 patients with GAD65 neurological autoimmunity, median age at symptom onset was 46 years (range: 5-83 years); 163/212 (77%) were female. Stiff-person spectrum disorders (SPSD) (N=71), cerebellar ataxia (N=55), epilepsy (N=35) and limbic encephalitis (N=7) could occur either in isolation or as part of an overlap syndrome (N=44), and were designated core manifestations. Cognitive impairment (N=38), myelopathy (N=23) and brainstem dysfunction (N=22) were only reported as co-occurring phenomena, and were designated secondary manifestations. Sustained response to immunotherapy ranged from 5/20 (25%) in epilepsy to 32/44 (73%) in SPSD (p=0.002). Complete immunotherapy response occurred in 2/142 (1%). Cerebellar ataxia and serum GAD65 antibody titre >500 nmol/L predicted poor outcome. INTERPRETATION High-titre GAD65 antibodies were suggestive of, but not pathognomonic for GAD65 neurological autoimmunity, which has discrete core and secondary manifestations. SPSD was most likely to respond to immunotherapy, while epilepsy was least immunotherapy responsive. Complete immunotherapy response was rare. Serum GAD65 antibody titre >500 nmol/L and cerebellar ataxia predicted poor outcome.
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Affiliation(s)
- Adrian Budhram
- Clinical Neurological Sciences, Western University Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Elia Sechi
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Sassari, Italy
| | - Eoin P Flanagan
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Divyanshu Dubey
- Neurology and Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Shailee S Shah
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Avi Gadoth
- Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Elie Naddaf
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Andrew McKeon
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
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35
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Muñiz-Castrillo S, Vogrig A, Montagnac C, Joubert B, Benaiteau M, Casez O, Chaumont H, Hopes L, Lanoiselée HM, Navarro V, Thomas B, Ursu R, Gonçalves D, Fabien N, Ducray F, Julier C, Honnorat J. Familial autoimmunity in neurological patients with GAD65 antibodies: an interview-based study. J Neurol 2021; 268:2515-2522. [PMID: 33544221 DOI: 10.1007/s00415-021-10424-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 11/26/2022]
Abstract
The common co-occurrence of autoimmune systemic diseases in patients with neurological disorders and antibodies against glutamic acid decarboxylase 65 (GAD65) suggests a shared genetic predisposition to these disorders. However, the nature and frequency of familial aggregation of autoimmune diseases, which might also support this hypothesis, have been poorly investigated. Herein, an exploratory, interview-based study was conducted with the aim of describing the autoimmune diseases displayed by the relatives of GAD65 neurological patients, their frequency, kinship, and potential patterns of inheritance. Patients were enrolled only if they had GAD65 antibodies in the cerebrospinal fluid and typical clinical phenotypes associated with such antibodies (stiff-person syndrome, cerebellar ataxia, limbic encephalitis, or temporal lobe epilepsy). A total of 65 patients were included in the study, and 44/65 (67.7%) reported family history of autoimmunity, including first-degree relatives in 36/65 (55.4%); the sibling recurrence risk (λS) was 5.5, reinforcing the hypothesis of an underlying strong genetic predisposition. Most pedigrees with familial autoimmunity (38/44, 86.4%) showed multiple autoimmune diseases, all but 2 of them with diabetes mellitus or autoimmune thyroid disease, therefore resembling autoimmune polyendocrine syndromes. Inheritance patterns were diverse, possibly autosomal dominant in 17/44 (38.6%) pedigrees or autosomal recessive in 5/44 (11.4%), and un-defined or complex in 24/44 (54.5%). However, a total of 21/65 (32.3%) patients had no identified family history of autoimmunity. In conclusion, these results suggest a variable and heterogeneous genetic predisposition to GAD65 neurological disorders, possibly involving multiple loci and modes of inheritance with different contribution in each family.
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Affiliation(s)
- Sergio Muñiz-Castrillo
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, Inserm U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Alberto Vogrig
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, Inserm U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Clémentine Montagnac
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, Inserm U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Bastien Joubert
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, Inserm U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Marie Benaiteau
- Neurology Department, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Olivier Casez
- Neurology Department, Centre Hospitalier Universitaire de Grenoble, Grenoble, France
| | - Hugo Chaumont
- Neurology Department, Centre Hospitalier Universitaire de la Guadeloupe, Point-à-Pitre, France
| | - Lucie Hopes
- Neurology Department, Centre Hospitalier Régional Universitaire de Nancy, Nancy, France
| | | | - Vincent Navarro
- Neurology Department, GH Pitié-Salpêtrière-Charles Foix, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France
| | - Benjamin Thomas
- Neurology Department, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
| | - Renata Ursu
- Neurology Department, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France
| | - David Gonçalves
- Immunology Department, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Lyon, France
| | - Nicole Fabien
- Immunology Department, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Lyon, France
| | - François Ducray
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France
- SynatAc Team, Institut NeuroMyoGène, Inserm U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Cécile Julier
- Institut Cochin, Inserm U1016, CNRS UMR-8104, Université de Paris, Paris, France
| | - Jérôme Honnorat
- French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France.
- SynatAc Team, Institut NeuroMyoGène, Inserm U1217/CNRS UMR 5310, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France.
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Hoffmann C, Zong S, Mané-Damas M, Stevens J, Malyavantham K, Küçükali Cİ, Tüzün E, De Hert M, van Beveren NJM, González-Vioque E, Arango C, Damoiseaux JGMC, Rutten BP, Molenaar PC, Losen M, Martinez-Martinez P. The search for an autoimmune origin of psychotic disorders: Prevalence of autoantibodies against hippocampus antigens, glutamic acid decarboxylase and nuclear antigens. Schizophr Res 2021; 228:462-471. [PMID: 33581586 DOI: 10.1016/j.schres.2020.12.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 12/12/2020] [Accepted: 12/30/2020] [Indexed: 12/31/2022]
Abstract
The etiology of psychotic disorders is still unknown, but in a subgroup of patients symptoms might be caused by an autoimmune reaction. In this study, we tested patterns of autoimmune reactivity against potentially novel hippocampal antigens. Serum of a cohort of 621 individuals with psychotic disorders and 257 controls were first tested for reactivity on neuropil of rat brain sections. Brain reactive sera (67 diseased, 27 healthy) were further tested for antibody binding to glutamic acid decarboxylase (GAD) isotype 65 and 67 by cell-based assay (CBA). A sub-cohort of 199 individuals with psychotic disorders and 152 controls was tested for the prevalence of anti-nuclear antibodies (ANA) on HEp2-substrate as well as for reactivity to double-stranded DNA, ribosomal P (RPP), and cardiolipin (CL). Incubation of rat brain with serum resulted in unidentified hippocampal binding patterns in both diseased and control groups. Upon screening with GAD CBA, one of these patterns was identified as GAD65 in one individual with schizophrenia and also in one healthy individual. Two diseased and two healthy individuals had low antibody levels targeting GAD67 by CBA. Antibody reactivity on HEp-2-substrate was increased in patients with schizoaffective disorder, but only in 3 patients did antibody testing hint at a possible diagnosis of systemic lupus erythematosus. Although reactivity of serum to intracellular antigens might be increased in patients with psychotic disorder, no specific targets could be identified. GAD antibodies are very rare and do not seem increased in serum of patients with psychotic disorders.
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Affiliation(s)
- Carolin Hoffmann
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Shenghua Zong
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Marina Mané-Damas
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Jo Stevens
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | | | - Cem İsmail Küçükali
- Department of Neuroscience, Institute for Experimental Medical Research (DETAE), Istanbul University, Istanbul, Turkey
| | - Erdem Tüzün
- Department of Neuroscience, Institute for Experimental Medical Research (DETAE), Istanbul University, Istanbul, Turkey
| | - Marc De Hert
- UPC KU Leuven, KU Leuven Department of Neurosciences, Belgium; Antwerp Health Law and Ethics Chair - AHLEC, University Antwerp, Antwerp, Belgium
| | - Nico J M van Beveren
- Department of Psychiatry, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Emiliano González-Vioque
- Child and Adolescent Psychiatry Department, Hospital General Universitario, Gregorio Marañón, School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - Celso Arango
- Child and Adolescent Psychiatry Department, Hospital General Universitario, Gregorio Marañón, School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - Jan G M C Damoiseaux
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Bart P Rutten
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Peter C Molenaar
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Mario Losen
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Pilar Martinez-Martinez
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands.
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37
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Mitoma H, Manto M, Hadjivassiliou M. Immune-Mediated Cerebellar Ataxias: Clinical Diagnosis and Treatment Based on Immunological and Physiological Mechanisms. J Mov Disord 2021; 14:10-28. [PMID: 33423437 PMCID: PMC7840241 DOI: 10.14802/jmd.20040] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 09/04/2020] [Indexed: 12/24/2022] Open
Abstract
Since the first description of immune-mediated cerebellar ataxias (IMCAs) by Charcot in 1868, several milestones have been reached in our understanding of this group of neurological disorders. IMCAs have diverse etiologies, such as gluten ataxia, postinfectious cerebellitis, paraneoplastic cerebellar degeneration, opsoclonus myoclonus syndrome, anti-GAD ataxia, and primary autoimmune cerebellar ataxia. The cerebellum, a vulnerable autoimmune target of the nervous system, has remarkable capacities (collectively known as the cerebellar reserve, closely linked to plasticity) to compensate and restore function following various pathological insults. Therefore, good prognosis is expected when immune-mediated therapeutic interventions are delivered during early stages when the cerebellar reserve can be preserved. However, some types of IMCAs show poor responses to immunotherapies, even if such therapies are introduced at an early stage. Thus, further research is needed to enhance our understanding of the autoimmune mechanisms underlying IMCAs, as such research could potentially lead to the development of more effective immunotherapies. We underscore the need to pursue the identification of robust biomarkers.
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Affiliation(s)
- Hiroshi Mitoma
- Department of Medical Education, Tokyo Medical University, Tokyo, Japan
| | - Mario Manto
- Service de Neurologie, Médiathèque Jean Jacquy, CHU-Charleroi, Charleroi, Belgium.,Service des Neurosciences, University of Mons, Mons, Belgium
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38
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Hadjivassiliou M, Sarrigiannis PG, Shanmugarajah PD, Sanders DS, Grünewald RA, Zis P, Hoggard N. Clinical Characteristics and Management of 50 Patients with Anti-GAD Ataxia: Gluten-Free Diet Has a Major Impact. THE CEREBELLUM 2020; 20:179-185. [PMID: 33084997 PMCID: PMC8004502 DOI: 10.1007/s12311-020-01203-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 10/11/2020] [Indexed: 12/19/2022]
Abstract
The objective of this study is to report the clinical characteristics and treatment of patients with progressive cerebellar ataxia associated with anti-GAD antibodies. We performed a retrospective review of all patients with anti-GAD ataxia managed at the Sheffield Ataxia Centre over the last 25 years. We identified 50 patients (62% females) with anti-GAD ataxia. The prevalence was 2.5% amongst 2000 patients with progressive ataxia of various causes. Mean age at onset was 55 and mean duration 8 years. Gaze-evoked nystagmus was present in 26%, cerebellar dysarthria in 26%, limb ataxia in 44% and gait ataxia in 100%. Nine patients (18%) had severe, 12 (24%) moderate and 29 (58%) mild ataxia. Ninety percent of patients had a history of additional autoimmune diseases. Family history of autoimmune diseases was seen in 52%. Baseline MR spectroscopy of the vermis was abnormal at presentation in 72%. Thirty-five patients (70%) had serological evidence of gluten sensitivity. All 35 went on gluten-free diet (GFD). Eighteen (51%) improved, 13 (37%) stabilised, 3 have started the GFD too recently to draw conclusions and one deteriorated. Mycophenolate was used in 16 patients, 7 (44%) improved, 2 stabilised, 6 have started the medication too recently to draw conclusions and one did not tolerate the drug. There is considerable overlap between anti-GAD ataxia and gluten ataxia. For those patients with both, strict GFD alone can be an effective treatment. Patients with anti-GAD ataxia and no gluten sensitivity respond well to immunosuppression.
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Affiliation(s)
- M Hadjivassiliou
- Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Glossop Road, Sheffield, S10 2JF, UK.
| | - P G Sarrigiannis
- Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Glossop Road, Sheffield, S10 2JF, UK
| | - P D Shanmugarajah
- Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Glossop Road, Sheffield, S10 2JF, UK
| | - D S Sanders
- Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Glossop Road, Sheffield, S10 2JF, UK
| | - R A Grünewald
- Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Glossop Road, Sheffield, S10 2JF, UK
| | - P Zis
- Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Glossop Road, Sheffield, S10 2JF, UK
| | - N Hoggard
- Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Glossop Road, Sheffield, S10 2JF, UK.,Academic Department of Neuroradiology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Sheffield, UK
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39
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Hadjivassiliou M. Advances in Therapies of Cerebellar Disorders: Immune-mediated Ataxias. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2020; 18:423-431. [PMID: 29268693 DOI: 10.2174/1871527317666171221110548] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 12/12/2017] [Accepted: 12/14/2017] [Indexed: 01/30/2023]
Abstract
The identification of an increasing number of immune mediated ataxias suggests that the cerebellum is often a target organ for autoimmune insults. The diagnosis of immune mediated ataxias is challenging as there is significant clinical overlap between immune mediated and other forms of ataxia. Furthermore the classification of immune mediated ataxias requires further clarification particularly for those ataxias where no specific antigenic trigger and associated antibodies have been identified. Recognition of immune mediated ataxias remains imperative as therapeutic interventions can be effective, although given the relative rarity of this entity, large-scale treatment trials may not be feasible. This review will discuss advances in therapies for immune mediated ataxias based on what is currently available in the literature.
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Affiliation(s)
- Marios Hadjivassiliou
- Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield, United Kingdom
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Tanaka K, Kawamura M, Sakimura K, Kato N. Significance of Autoantibodies in Autoimmune Encephalitis in Relation to Antigen Localization: An Outline of Frequently Reported Autoantibodies with a Non-Systematic Review. Int J Mol Sci 2020; 21:ijms21144941. [PMID: 32668637 PMCID: PMC7404295 DOI: 10.3390/ijms21144941] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/01/2020] [Accepted: 07/08/2020] [Indexed: 12/13/2022] Open
Abstract
Autoantibodies related to central nervous system (CNS) diseases propel research on paraneoplastic neurological syndrome (PNS). This syndrome develops autoantibodies in combination with certain neurological syndromes and cancers, such as anti-HuD antibodies in encephalomyelitis with small cell lung cancer and anti-Yo antibodies in cerebellar degeneration with gynecological cancer. These autoantibodies have roles in the diagnosis of neurological diseases and early detection of cancers that are usually occult. Most of these autoantibodies have no pathogenic roles in neuronal dysfunction directly. Instead, antigen-specific cytotoxic T lymphocytes are thought to have direct roles in neuronal damage. The recent discoveries of autoantibodies against neuronal synaptic receptors/channels produced in patients with autoimmune encephalomyelitis have highlighted insights into our understanding of the variable neurological symptoms in this disease. It has also improved our understanding of intractable epilepsy, atypical psychosis, and some demyelinating diseases that are ameliorated with immune therapies. The production and motility of these antibodies through the blood-brain barrier into the CNS remains unknown. Most of these recently identified autoantibodies bind to neuronal and glial cell surface synaptic receptors, potentially altering the synaptic signaling process. The clinical features differ among pathologies based on antibody targets. The investigation of these antibodies provides a deeper understanding of the background of neurological symptoms in addition to novel insights into their basic neuroscience.
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Affiliation(s)
- Keiko Tanaka
- Department of Animal Model Development, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata 951-8585, Japan; (M.K.); (K.S.)
- Department of Multiple Sclerosis Therapeutics, Fukushima Medical University, School of Medicine, 1 Hikarigaoka, Fukushima 960-1247, Japan
- Correspondence: ; Tel.: +81-25-227-0624; Fax: +81-25-227-0816
| | - Meiko Kawamura
- Department of Animal Model Development, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata 951-8585, Japan; (M.K.); (K.S.)
| | - Kenji Sakimura
- Department of Animal Model Development, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata 951-8585, Japan; (M.K.); (K.S.)
| | - Nobuo Kato
- Department of Physiology, Kanazawa Medical University, Ishikawa 920-0293, Japan;
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Fundamental Mechanisms of Autoantibody-Induced Impairments on Ion Channels and Synapses in Immune-Mediated Cerebellar Ataxias. Int J Mol Sci 2020; 21:ijms21144936. [PMID: 32668612 PMCID: PMC7404345 DOI: 10.3390/ijms21144936] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 12/13/2022] Open
Abstract
In the last years, different kinds of limbic encephalitis associated with autoantibodies against ion channels and synaptic receptors have been described. Many studies have demonstrated that such autoantibodies induce channel or receptor dysfunction. The same mechanism is discussed in immune-mediated cerebellar ataxias (IMCAs), but the pathogenesis has been less investigated. The aim of the present review is to evaluate what kind of cerebellar ion channels, their related proteins, and the synaptic machinery proteins that are preferably impaired by autoantibodies so as to develop cerebellar ataxias (CAs). The cerebellum predictively coordinates motor and cognitive functions through a continuous update of an internal model. These controls are relayed by cerebellum-specific functions such as precise neuronal discharges with potassium channels, synaptic plasticity through calcium signaling pathways coupled with voltage-gated calcium channels (VGCC) and metabotropic glutamate receptors 1 (mGluR1), a synaptic organization with glutamate receptor delta (GluRδ), and output signal formation through chained GABAergic neurons. Consistently, the association of CAs with anti-potassium channel-related proteins, anti-VGCC, anti-mGluR1, and GluRδ, and anti-glutamate decarboxylase 65 antibodies is observed in IMCAs. Despite ample distributions of AMPA and GABA receptors, however, CAs are rare in conditions with autoantibodies against these receptors. Notably, when the autoantibodies impair synaptic transmission, the autoimmune targets are commonly classified into three categories: release machinery proteins, synaptic adhesion molecules, and receptors. This physiopathological categorization impacts on both our understanding of the pathophysiology and clinical prognosis.
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Graus F, Saiz A, Dalmau J. GAD antibodies in neurological disorders — insights and challenges. Nat Rev Neurol 2020; 16:353-365. [DOI: 10.1038/s41582-020-0359-x] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2020] [Indexed: 01/07/2023]
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Dade M, Berzero G, Izquierdo C, Giry M, Benazra M, Delattre JY, Psimaras D, Alentorn A. Neurological Syndromes Associated with Anti-GAD Antibodies. Int J Mol Sci 2020; 21:E3701. [PMID: 32456344 PMCID: PMC7279468 DOI: 10.3390/ijms21103701] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 12/11/2022] Open
Abstract
Glutamic acid decarboxylase (GAD) is an intracellular enzyme whose physiologic function is the decarboxylation of glutamate to gamma-aminobutyric acid (GABA), the main inhibitory neurotransmitter within the central nervous system. GAD antibodies (Ab) have been associated with multiple neurological syndromes, including stiff-person syndrome, cerebellar ataxia, and limbic encephalitis, which are all considered to result from reduced GABAergic transmission. The pathogenic role of GAD Ab is still debated, and some evidence suggests that GAD autoimmunity might primarily be cell-mediated. Diagnosis relies on the detection of high titers of GAD Ab in serum and/or in the detection of GAD Ab in the cerebrospinal fluid. Due to the relative rarity of these syndromes, treatment schemes and predictors of response are poorly defined, highlighting the unmet need for multicentric prospective trials in this population. Here, we reviewed the main clinical characteristics of neurological syndromes associated with GAD Ab, focusing on pathophysiologic mechanisms.
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Affiliation(s)
- Maëlle Dade
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, 75013 Paris, France; (M.D.); (G.B.); (J.-Y.D.); (D.P.)
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, 75013 Paris, France; (M.G.); (M.B.)
| | - Giulia Berzero
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, 75013 Paris, France; (M.D.); (G.B.); (J.-Y.D.); (D.P.)
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, 75013 Paris, France; (M.G.); (M.B.)
- Neuroncology Unit, IRCCS Mondino Foundation, 27100 Pavia, Italy
| | - Cristina Izquierdo
- Department of Neuroscience, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, 08916 Badalona, Spain;
| | - Marine Giry
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, 75013 Paris, France; (M.G.); (M.B.)
| | - Marion Benazra
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, 75013 Paris, France; (M.G.); (M.B.)
| | - Jean-Yves Delattre
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, 75013 Paris, France; (M.D.); (G.B.); (J.-Y.D.); (D.P.)
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, 75013 Paris, France; (M.G.); (M.B.)
| | - Dimitri Psimaras
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, 75013 Paris, France; (M.D.); (G.B.); (J.-Y.D.); (D.P.)
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, 75013 Paris, France; (M.G.); (M.B.)
| | - Agusti Alentorn
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, 75013 Paris, France; (M.D.); (G.B.); (J.-Y.D.); (D.P.)
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, 75013 Paris, France; (M.G.); (M.B.)
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Muñoz-Lopetegi A, de Bruijn MAAM, Boukhrissi S, Bastiaansen AEM, Nagtzaam MMP, Hulsenboom ESP, Boon AJW, Neuteboom RF, de Vries JM, Sillevis Smitt PAE, Schreurs MWJ, Titulaer MJ. Neurologic syndromes related to anti-GAD65: Clinical and serologic response to treatment. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2020; 7:e696. [PMID: 32123047 PMCID: PMC7136051 DOI: 10.1212/nxi.0000000000000696] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/13/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Antibodies against glutamic acid decarboxylase 65 (anti-GAD65) are associated with a number of neurologic syndromes. However, their pathogenic role is controversial. Our objective was to describe clinical and paraclinical characteristics of anti-GAD65 patients and analyze their response to immunotherapy. METHODS Retrospectively, we studied patients (n = 56) with positive anti-GAD65 and any neurologic symptom. We tested serum and CSF with ELISA, immunohistochemistry, and cell-based assay. Accordingly, we set a cutoff value of 10,000 IU/mL in serum by ELISA to group patients into high-concentration (n = 36) and low-concentration (n = 20) groups. We compared clinical and immunologic features and analyzed response to immunotherapy. RESULTS Classical anti-GAD65-associated syndromes were seen in 34/36 patients with high concentration (94%): stiff-person syndrome (7), cerebellar ataxia (3), chronic epilepsy (9), limbic encephalitis (9), or an overlap of 2 or more of the former (6). Patients with low concentrations had a broad, heterogeneous symptom spectrum. Immunotherapy was effective in 19/27 treated patients (70%), although none of them completely recovered. Antibody concentration reduction occurred in 15/17 patients with available pre- and post-treatment samples (median reduction 69%; range 27%-99%), of which 14 improved clinically. The 2 patients with unchanged concentrations showed no clinical improvement. No differences in treatment responses were observed between specific syndromes. CONCLUSION Most patients with high anti-GAD65 concentrations (>10,000 IU/mL) showed some improvement after immunotherapy, unfortunately without complete recovery. Serum antibody concentrations' course might be useful to monitor response. In patients with low anti-GAD65 concentrations, especially in those without typical clinical phenotypes, diagnostic alternatives are more likely.
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Affiliation(s)
- Amaia Muñoz-Lopetegi
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Marienke A A M de Bruijn
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Sanae Boukhrissi
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Anna E M Bastiaansen
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Mariska M P Nagtzaam
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Esther S P Hulsenboom
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Agnita J W Boon
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Rinze F Neuteboom
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Juna M de Vries
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Peter A E Sillevis Smitt
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Marco W J Schreurs
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands
| | - Maarten J Titulaer
- From the Department of Neurology (A.M.-L., M.A.A.M.d.B., A.E.M.B., M.M.P.N., E.S.P.H., A.J.W.B., R.F.N., J.M.d.V., P.A.E.S.S., M.J.T.) and Department of Immunology (S.B., M.W.J.S.), Erasmus MC University Medical Center; Department of Neurology (A.M.-L.), IDIBAPS, Barcelona, Spain; and Health Care Provider of the European Reference Network on Immunodeficiency, Autoinflammatory and Autoimmune Diseases (ERN-RITA) (M.J.T.), Rotterdam, the Netherlands.
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Bien CG, Bien CI, Dogan Onugoren M, De Simoni D, Eigler V, Haensch CA, Holtkamp M, Ismail FS, Kurthen M, Melzer N, Mayer K, von Podewils F, Rauschka H, Rossetti AO, Schäbitz WR, Simova O, Witt K, Höftberger R, May TW. Routine diagnostics for neural antibodies, clinical correlates, treatment and functional outcome. J Neurol 2020; 267:2101-2114. [PMID: 32246252 PMCID: PMC8213550 DOI: 10.1007/s00415-020-09814-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/28/2020] [Accepted: 03/28/2020] [Indexed: 12/12/2022]
Abstract
Objective To determine frequencies, interlaboratory reproducibility, clinical ratings, and prognostic implications of neural antibodies in a routine laboratory setting in patients with suspected neuropsychiatric autoimmune conditions. Methods Earliest available samples from 10,919 patients were tested for a broad panel of neural antibodies. Sera that reacted with leucine-rich glioma-inactivated protein 1 (LGI1), contactin-associated protein-2 (CASPR2), or the voltage-gated potassium channel (VGKC) complex were retested for LGI1 and CASPR2 antibodies by another laboratory. Physicians in charge of patients with positive antibody results retrospectively reported on clinical, treatment, and outcome parameters. Results Positive results were obtained for 576 patients (5.3%). Median disease duration was 6 months (interquartile range 0.6–46 months). In most patients, antibodies were detected both in CSF and serum. However, in 16 (28%) patients with N-methyl-d-aspartate receptor (NMDAR) antibodies, this diagnosis could be made only in cerebrospinal fluid (CSF). The two laboratories agreed largely on LGI1 and CASPR2 antibody diagnoses (κ = 0.95). The clinicians (413 responses, 71.7%) rated two-thirds of the antibody-positive patients as autoimmune. Antibodies against the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR), NMDAR (CSF or high serum titer), γ-aminobutyric acid-B receptor (GABABR), and LGI1 had ≥ 90% positive ratings, whereas antibodies against the glycine receptor, VGKC complex, or otherwise unspecified neuropil had ≤ 40% positive ratings. Of the patients with surface antibodies, 64% improved after ≥ 3 months, mostly with ≥ 1 immunotherapy intervention. Conclusions This novel approach starting from routine diagnostics in a dedicated laboratory provides reliable and useful results with therapeutic implications. Counseling should consider clinical presentation, demographic features, and antibody titers of the individual patient. Electronic supplementary material The online version of this article (10.1007/s00415-020-09814-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christian G Bien
- Epilepsy Center Bethel, Krankenhaus Mara, Maraweg 17-21, 33617, Bielefeld, Germany.
| | | | - Müjgan Dogan Onugoren
- Department of Neurology, Epilepsy Center, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Germany
| | - Desiree De Simoni
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria.,Department of Neurology, University Hospital St. Poelten, St. Poelten, Austria
| | - Verena Eigler
- Department of Neurology, Städtisches Klinikum Ludwigshafen Am Rhein, Ludwigshafen, Germany
| | - Carl-Albrecht Haensch
- Department of Neurology, Kliniken Maria Hilf Moenchengladbach, Faculty of Health, University of Witten/Herdecke, Moenchengladbach, Germany
| | - Martin Holtkamp
- Epilepsy-Center Berlin-Brandenburg, Institute for Diagnostics of Epilepsy, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany
| | - Fatme S Ismail
- Department of Neurology, University Hospital Bochum, Knappschaftskrankenhaus, Bochum, Germany
| | | | - Nico Melzer
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Kristina Mayer
- Department of Neurology, University Hospital of Augsburg, Augsburg, Germany
| | - Felix von Podewils
- Department of Neurology, University Medicine Greifswald, Greifswald, Germany
| | - Helmut Rauschka
- Department of Neurology and Karl Landsteiner Institute for Neuroimmunological and Neurodegenerative Disorders, Sozialmedizinisches Zentrum Ost, Donauspital, Vienna, Austria
| | - Andrea O Rossetti
- Department of Clinical Neurosciences, University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | | | - Olga Simova
- Protestant Hospital Alsterdorf, Epilepsy Center Hamburg, Hamburg, Germany
| | - Karsten Witt
- Department of Neurology and Research Centre of Neurosensory Sciences, Carl Von Ossietzky University, Oldenburg, Germany
| | - Romana Höftberger
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria
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Gövert F, Leypoldt F, Junker R, Wandinger KP, Deuschl G, Bhatia KP, Balint B. Antibody-related movement disorders - a comprehensive review of phenotype-autoantibody correlations and a guide to testing. Neurol Res Pract 2020; 2:6. [PMID: 33324912 PMCID: PMC7650144 DOI: 10.1186/s42466-020-0053-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 02/03/2020] [Indexed: 12/25/2022] Open
Abstract
Background Over the past decade increasing scientific progress in the field of autoantibody-mediated neurological diseases was achieved. Movement disorders are a frequent and often prominent feature in such diseases which are potentially treatable. Main body Antibody-mediated movement disorders encompass a large clinical spectrum of diverse neurologic disorders occurring either in isolation or accompanying more complex autoimmune encephalopathic diseases. Since autoimmune movement disorders can easily be misdiagnosed as neurodegenerative or metabolic conditions, appropriate immunotherapy can be delayed or even missed. Recognition of typical clinical patterns is important to reach the correct diagnosis. Conclusion There is a growing number of newly discovered antibodies which can cause movement disorders. Several antibodies can cause distinctive phenotypes of movement disorders which are important to be aware of. Early diagnosis is important because immunotherapy can result in major improvement.In this review article we summarize the current knowledge of autoimmune movement disorders from a point of view focused on clinical syndromes. We discuss associated clinical phenomenology and antineuronal antibodies together with alternative etiologies with the aim of providing a diagnostic framework for clinicians considering underlying autoimmunity in patients with movement disorders.
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Affiliation(s)
- Felix Gövert
- Department of Neurology, Christian-Albrecht University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Frank Leypoldt
- Department of Neurology, Christian-Albrecht University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany.,Neuroimmunology, Institute of Clinical Chemistry, Christian-Albrecht University of Kiel and University Medical Center Schleswig-Holstein, Kiel/Luebeck, Germany
| | - Ralf Junker
- Neuroimmunology, Institute of Clinical Chemistry, Christian-Albrecht University of Kiel and University Medical Center Schleswig-Holstein, Kiel/Luebeck, Germany
| | - Klaus-Peter Wandinger
- Neuroimmunology, Institute of Clinical Chemistry, Christian-Albrecht University of Kiel and University Medical Center Schleswig-Holstein, Kiel/Luebeck, Germany
| | - Günther Deuschl
- Department of Neurology, Christian-Albrecht University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Kailash P Bhatia
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
| | - Bettina Balint
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK.,Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
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Abstract
PURPOSE OF REVIEW The current review develops the clinical presentations of nonparaneoplastic autoimmune cerebellar ataxia (ACA) and analyzes the association with autoantibodies. RECENT FINDINGS Emerging evidence suggests that autoimmunity is involved in a significant proportion of sporadic ataxia cases. Moreover, numerous autoantibodies have recently been described in association with sporadic cerebellar ataxia, improving diagnosis and patient categorization. SUMMARY Nonparaneoplastic ACA encompasses postinfectious acute cerebellar ataxia, opsoclonus-myoclonus-ataxia syndrome, and pure cerebellar ataxia with or without autoantibodies. There is still confusion about how to diagnose and classify the patients, and retrospective data suggest that these very rare entities are in fact largely underrecognized. Numerous autoantibodies have been found associated with sporadic ataxia, improving diagnosis accuracy, and patient categorization. However, although anti-glutamate decarboxylase isotype 65 (GAD65), anti-contactin-associated protein 2 (CASPR2), and anti metabotropic glutamate receptor (mGluR1) antibodies are well recognized biomarkers, many other autoantibodies have been described in very small numbers of patients and their specificity is unknown. Efficient biomarkers for ACA are still lacking and in many cases the diagnosis has to rely on a body of converging evidence.
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D'Ambrosio E, Khalighinejad F, Ionete C. Intravenous immunoglobulins in an adult case of post-EBV cerebellitis. BMJ Case Rep 2020; 13:13/2/e231661. [PMID: 32075812 DOI: 10.1136/bcr-2019-231661] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Post-Epstein-Barr virus (EBV) cerebellitis is very rare complication of infectious mononucleosis and only a few adult cases are reported in literature. We present a 23-year-old patient who was admitted to the neurology service with worsening ataxia, nystagmus and dysarthria, 1 week after infectious mononucleosis. Imaging and cerebrospinal fluid studies were normal, serum studies revealed acute transaminitis and positive EBV viral capsid IgM and IgG. The patient underwent a 5-day course of intravenous immunoglobulins with rapid resolution of all his symptoms and was safely discharged home. The pathophysiology of post-EBV cerebellitis involves autoreactive antibodies, rather than a direct viral insult. Antineuronal antibodies might be the result of a mimicry between EBV proteins and neuronal antigens or they can be secreted by the EBV-transformed lymphocytes themselves. Many reports stress the benign, self-limiting nature of this syndrome; however, immunotherapy might de facto decrease the severity and duration of illness.
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Affiliation(s)
- Eleonora D'Ambrosio
- Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | | | - Carolina Ionete
- Neurology, University of Massachusetts, Worcester, Massachusetts, USA
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Pedroso JL, Vale TC, Braga-Neto P, Dutra LA, França MC, Teive HAG, Barsottini OGP. Acute cerebellar ataxia: differential diagnosis and clinical approach. ARQUIVOS DE NEURO-PSIQUIATRIA 2020; 77:184-193. [PMID: 30970132 DOI: 10.1590/0004-282x20190020] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/02/2018] [Indexed: 12/20/2022]
Abstract
Cerebellar ataxia is a common finding in neurological practice and has a wide variety of causes, ranging from the chronic and slowly-progressive cerebellar degenerations to the acute cerebellar lesions due to infarction, edema and hemorrhage, configuring a true neurological emergency. Acute cerebellar ataxia is a syndrome that occurs in less than 72 hours, in previously healthy subjects. Acute ataxia usually results in hospitalization and extensive laboratory investigation. Clinicians are often faced with decisions on the extent and timing of the initial screening tests, particularly to detect treatable causes. The main group of diseases that may cause acute ataxias discussed in this article are: stroke, infectious, toxic, immune-mediated, paraneoplastic, vitamin deficiency, structural lesions and metabolic diseases. This review focuses on the etiologic and diagnostic considerations for acute ataxia.
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Affiliation(s)
- José Luiz Pedroso
- Universidade Federal de São Paulo, Departamento de Neurologia e Neurocirurgia, Unidade de Neurologia Geral e de Ataxias, São Paulo SP, Brasil
| | - Thiago Cardoso Vale
- Universidade Federal de Juiz de Fora, Departamento de Clínica Médica, Serviço de Neurologia do Hospital Universitário, Juiz de Fora MG, Brasil
| | - Pedro Braga-Neto
- Universidade Federal do Ceará, Departamento de Medicina Clínica, Divisão de Neurologia, Fortaleza CE, Brasil.,Universidade Estadual do Ceará, Centro de Ciências da Saúde, Fortaleza CE, Brasil
| | - Lívia Almeida Dutra
- Universidade Federal de São Paulo, Departamento de Neurologia e Neurocirurgia, Unidade de Neurologia Geral e de Ataxias, São Paulo SP, Brasil.,Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo SP, Brasil
| | | | - Hélio A G Teive
- Universidade Federal do Paraná, Hospital de Clínicas, Departamento de Medicina Interna, Serviço de Neurologia, Setor de Distúrbios do Movimento, Curitiba PR, Brasil
| | - Orlando G P Barsottini
- Universidade Federal de São Paulo, Departamento de Neurologia e Neurocirurgia, Unidade de Neurologia Geral e de Ataxias, São Paulo SP, Brasil
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Dalmau J, Dalakas MC, Kolson DL, Paul F, Zamvil SS. N2 year in review. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2020; 7:e644. [PMID: 31831570 PMCID: PMC6935839 DOI: 10.1212/nxi.0000000000000644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Josep Dalmau
- From the ICREA-IDIBAPS Hospital Clínic, University of Barcelona (J.D.), Spain; University of Pennsylvania (J.D., D.L.K.), Philadelphia; University of Athens Medical School (M.C.D.), Athens, Greece; Jefferson University (M.C.D.), Philadelphia, PA; Charite University Hospital (F.P.), Berlin, Germany; and Department of Neurology (S.S.Z.), University of California, San Francisco.
| | - Marinos C Dalakas
- From the ICREA-IDIBAPS Hospital Clínic, University of Barcelona (J.D.), Spain; University of Pennsylvania (J.D., D.L.K.), Philadelphia; University of Athens Medical School (M.C.D.), Athens, Greece; Jefferson University (M.C.D.), Philadelphia, PA; Charite University Hospital (F.P.), Berlin, Germany; and Department of Neurology (S.S.Z.), University of California, San Francisco
| | - Dennis L Kolson
- From the ICREA-IDIBAPS Hospital Clínic, University of Barcelona (J.D.), Spain; University of Pennsylvania (J.D., D.L.K.), Philadelphia; University of Athens Medical School (M.C.D.), Athens, Greece; Jefferson University (M.C.D.), Philadelphia, PA; Charite University Hospital (F.P.), Berlin, Germany; and Department of Neurology (S.S.Z.), University of California, San Francisco
| | - Friedemann Paul
- From the ICREA-IDIBAPS Hospital Clínic, University of Barcelona (J.D.), Spain; University of Pennsylvania (J.D., D.L.K.), Philadelphia; University of Athens Medical School (M.C.D.), Athens, Greece; Jefferson University (M.C.D.), Philadelphia, PA; Charite University Hospital (F.P.), Berlin, Germany; and Department of Neurology (S.S.Z.), University of California, San Francisco
| | - Scott S Zamvil
- From the ICREA-IDIBAPS Hospital Clínic, University of Barcelona (J.D.), Spain; University of Pennsylvania (J.D., D.L.K.), Philadelphia; University of Athens Medical School (M.C.D.), Athens, Greece; Jefferson University (M.C.D.), Philadelphia, PA; Charite University Hospital (F.P.), Berlin, Germany; and Department of Neurology (S.S.Z.), University of California, San Francisco
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