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Kanikannan MA, Kathgave R, Yareeda S, Katkam SK, Kumaraswamy K, Kutala VK. Association of HLA DRB1-DQB1 Haplotypes with the Risk for Neuromyelitis Optica among South Indians. Neurol India 2022; 70:1481-1486. [PMID: 36076647 DOI: 10.4103/0028-3886.355130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Neuromyelitis optica (NMO) is an autoimmune demyelinating disorder, mainly characterized by severe optic neuritis, transverse myelitis and the high levels of antibodies against NMO-immunoglobulin G (IgG) or aquaporin-4 (AQP4). HLA-DR and HLA-DQ alleles within the HLA class II region on chromosome 6p21 are known to play a significant role in several autoimmune diseases including NMO. The rationale of the current case-control study is to explore the association of HLA-DRB1 and HLA-DQB1 alleles with the risk of NMO and its association with the clinical and serological markers. Methods A total of 158 samples (38 NMO cases and 120-age and ethnicity matched controls) were genotyped for the HLA-DRB1 and HLA-DQB1 alleles by using PCR-SSP method. Results Our analysis showed significant association of HLA-DRB1*10 allele (OR 2.63, 95% CI: 1.18-5.83, p=0.02) with NMO whereas DRB1*14 showed protective role against NMO (OR 0.33: 95% CI: 0.11-0.94, p=0.043). HLA-DRB1*10 allele also showed significant association in patients with NMO-IgG positive antibody (OR 3.28: 95% CI: 1.42-7.5, p=0.006). There was no association of HLA DQB1 alleles with NMO and also with NMO-IgG antibody. Among the haplotypes groups, HLA-DRB1*10-DQB1*05 (OR 2.61, 95% CI: 1.11-6.1, p=0.03), HLA-DRB1*15-DQB1*03 (OR 4.5, 95% CI: 1.81-11.5, p=0.001) were strongly associated with the risk of NMO, whereas DRB1*14-DQB1*05 (OR 0.20, 95% CI: 0.060-0.721, p=0.008) showed negative association with NMO. Conclusion From this study, it is concluded that the HLA-DRB1*10 and DRB1*10-DQB1*05 and HLA-DRB1*15-DQB1*03 haplotypes may influence the susceptibility to NMO among the South Indians. Additionally we found DRB1*14 allele and DRB1*14-DQB1*05 haplotype showed protective role for NMO.
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Affiliation(s)
- Meena A Kanikannan
- Department of Neurology, Nizam's Institute of Medical Sciences (NIMS), Hyderabad, Telangana, India
| | - Rakesh Kathgave
- Department of Neurology, Nizam's Institute of Medical Sciences (NIMS), Hyderabad, Telangana, India
| | - Sireesha Yareeda
- Department of Neurology, Nizam's Institute of Medical Sciences (NIMS), Hyderabad, Telangana, India
| | - Shiva K Katkam
- Department of Clinical Pharmacology and Therapeutics, Nizam's Institute of Medical Sciences (NIMS), Hyderabad, Telangana, India
| | - Konda Kumaraswamy
- Department of Clinical Pharmacology and Therapeutics, Nizam's Institute of Medical Sciences (NIMS), Hyderabad, Telangana, India
| | - Vijay K Kutala
- Department of Clinical Pharmacology and Therapeutics, Nizam's Institute of Medical Sciences (NIMS), Hyderabad, Telangana, India
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Muñiz-Castrillo S, Vogrig A, Honnorat J. Associations between HLA and autoimmune neurological diseases with autoantibodies. AUTOIMMUNITY HIGHLIGHTS 2020; 11:2. [PMID: 32127039 PMCID: PMC7065322 DOI: 10.1186/s13317-019-0124-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/14/2019] [Indexed: 12/16/2022]
Abstract
Recently, several autoimmune neurological diseases have been defined by the presence of autoantibodies against different antigens of the nervous system. These autoantibodies have been demonstrated to be specific and useful biomarkers, and most of them are also pathogenic. These aspects have increased the value of autoantibodies in neurological practice, as they enable to establish more accurate diagnosis and to better understand the underlying mechanisms of the autoimmune neurological diseases when they are compared to those lacking them. Nevertheless, the exact mechanisms leading to the autoimmune response are still obscure. Genetic predisposition is likely to play a role in autoimmunity, HLA being the most reported genetic factor. Herein, we review the current knowledge about associations between HLA and autoimmune neurological diseases with autoantibodies. We report the main alleles and haplotypes, and discuss the clinical and pathogenic implications of these findings.
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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
| | - 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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Tsuchiya N, Kawasaki A. HLA-DRB1 and FCGR2B: highlights of the first genome-wide association study of IgG4-related disease. THE LANCET. RHEUMATOLOGY 2019; 1:e2-e3. [PMID: 38229355 DOI: 10.1016/s2665-9913(19)30015-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 07/17/2019] [Indexed: 01/18/2024]
Affiliation(s)
- Naoyuki Tsuchiya
- Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.
| | - Aya Kawasaki
- Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
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Misra MK, Damotte V, Hollenbach JA. The immunogenetics of neurological disease. Immunology 2018; 153:399-414. [PMID: 29159928 PMCID: PMC5838423 DOI: 10.1111/imm.12869] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/09/2017] [Accepted: 11/14/2017] [Indexed: 12/18/2022] Open
Abstract
Genes encoding antigen-presenting molecules within the human major histocompatibility complex (MHC) account for the highest component of genetic risk for many neurological diseases, such as multiple sclerosis, neuromyelitis optica, Parkinson's disease, Alzheimer's disease, schizophrenia, myasthenia gravis and amyotrophic lateral sclerosis. Myriad genetic, immunological and environmental factors may contribute to an individual's susceptibility to neurological disease. Here, we review and discuss the decades long research on the influence of genetic variation at the MHC locus and the role of immunogenetic killer cell immunoglobulin-like receptor (KIR) loci in neurological diseases, including multiple sclerosis, neuromyelitis optica, Parkinson's disease, Alzheimer's disease, schizophrenia, myasthenia gravis and amyotrophic lateral sclerosis. The findings of immunogenetic association studies are consistent with a polygenic model of inheritance in the heterogeneous and multifactorial nature of complex traits in various neurological diseases. Future investigation is highly recommended to evaluate both coding and non-coding variation in immunogenetic loci using high-throughput high-resolution next-generation sequencing technologies in diverse ethnic groups to fully appreciate their role in neurological diseases.
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Affiliation(s)
- Maneesh K. Misra
- Department of NeurologySan Francisco School of MedicineUniversity of CaliforniaSan FranciscoCAUSA
| | - Vincent Damotte
- Department of NeurologySan Francisco School of MedicineUniversity of CaliforniaSan FranciscoCAUSA
| | - Jill A. Hollenbach
- Department of NeurologySan Francisco School of MedicineUniversity of CaliforniaSan FranciscoCAUSA
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Abstract
PURPOSE OF REVIEW The discovery of aquaporin-4 (AQP4) antibodies with high specificity for neuromyelitis optica spectrum disorder (NMOSD) has induced tremendous changes in the approach and management of central nervous system (CNS) neuroinflammatory disorders. Owing to the increasing availability of the AQP4 antibody assay and evolution of diagnostic criteria for multiple sclerosis and NMOSD, recent studies have reevaluated CNS neuroinflammatory disorders. This review describes recent advances in the understanding of CNS neuroinflammatory disorders in Asian/Pacific regions. RECENT FINDINGS Although multiple sclerosis prevalence is lower in Asian countries than in Western countries, the overall clinical features of multiple sclerosis are comparable between these countries. Hospital-based studies have reported that the frequency of NMOSD is higher in Asian populations (22-42%) than in white populations (2-26%). Despite improvements in the AQP4 antibody assay, AQP4 antibodies are not detected in certain patients with NMOSD. Recently, myelin oligodendrocyte glycoprotein (MOG) antibodies have been identified in AQP4 antibody-negative patients with the NMOSD phenotype, and the clinical features differ slightly between MOG antibody-positive patients and AQP4 antibody-positive patients. SUMMARY The understanding of CNS neuroinflammatory disorders in Asian/Pacific regions continues to evolve owing to the discovery of new biological markers and recognition of broader clinical phenotypes.
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Asano T, Furukawa H, Sato S, Yashiro M, Kobayashi H, Watanabe H, Suzuki E, Ito T, Ubara Y, Kobayashi D, Iwanaga N, Izumi Y, Fujikawa K, Yamasaki S, Nakamura T, Koga T, Shimizu T, Umeda M, Nonaka F, Yasunami M, Ueki Y, Eguchi K, Tsuchiya N, Tohma S, Yoshiura KI, Ohira H, Kawakami A, Migita K. Effects of HLA-DRB1 alleles on susceptibility and clinical manifestations in Japanese patients with adult onset Still's disease. Arthritis Res Ther 2017; 19:199. [PMID: 28899403 PMCID: PMC5596459 DOI: 10.1186/s13075-017-1406-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 08/22/2017] [Indexed: 01/01/2023] Open
Abstract
Background HLA-DRB1 alleles are major determinants of genetic predisposition to rheumatic diseases. We assessed whether DRB1 alleles are associated with susceptibility to particular clinical features of adult onset Still’s disease (AOSD) in a Japanese population by determining the DRB1 allele distributions. Methods DRB1 genotyping of 96 patients with AOSD and 1,026 healthy controls was performed. Genomic DNA samples from the AOSD patients were also genotyped for MEFV exons 1, 2, 3, and 10 by direct sequencing. Results In Japanese patients with AOSD, we observed a predisposing association of DRB1*15:01 (p = 8.60 × 10−6, corrected p (Pc) = 0.0002, odds ratio (OR) = 3.04, 95% confidence interval (95% CI) = 1.91–4.84) and DR5 serological group (p = 0.0006, OR = 2.39, 95% CI = 1.49–3.83) and a protective association of DRB1*09:01 (p = 0.0004, Pc = 0.0110, OR = 0.34, 95% CI = 0.18–0.66) with AOSD, and amino acid residues 86 and 98 of the DRβ chain were protectively associated with AOSD. MEFV variants were identified in 49 patients with AOSD (56.3%). The predisposing effect of DR5 was confirmed only in patients with AOSD who had MEFV variants and not in those without MEFV variants. Additionally, DR5 in patients with AOSD are associated with macrophage activation syndrome (MAS) and steroid pulse therapy. Conclusion The DRB1*15:01 and DR5 are both associated with AOSD susceptibility in Japanese subjects. A protective association between the DRB1*09:01 allele and AOSD was also observed in these patients. Our data also highlight the effects of DRB1 alleles in susceptibility to AOSD. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1406-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tomoyuki Asano
- Department of Rheumatology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan
| | - Hiroshi Furukawa
- Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Shuzo Sato
- Department of Rheumatology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan
| | - Makiko Yashiro
- Department of Rheumatology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan
| | - Hiroko Kobayashi
- Department of Rheumatology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan
| | - Hiroshi Watanabe
- Department of Rheumatology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan
| | - Eiji Suzuki
- Department of Rheumatology, Ohta Nishinouchi General Hospital Foundation, 2-5-20 Nishinouchi, Koriyama, Fukushima, 963-8558, Japan
| | - Tomoyuki Ito
- Department of Rheumatology Nagaoka Red Cross Hospital, 297-1, Senshu-2, Nagaoka, Niigata, 940-2085, Japan
| | - Yoshifumi Ubara
- Department of Rheumatology, Toranomon Hospital, Toranomon 2-2-2, Minato-ku, Tokyo, 105-8470, Japan
| | - Daisuke Kobayashi
- Department of Rheumatology, Niigata Rheumatic Center, 1-2-8 Honcho, Shibata, Niigata, 957-0054, Japan
| | - Nozomi Iwanaga
- Clinical Research Center, NHO Nagasaki Medical Center, Kubara 2-1001-1, Omura, Nagasaki, 856-8562, Japan
| | - Yasumori Izumi
- Clinical Research Center, NHO Nagasaki Medical Center, Kubara 2-1001-1, Omura, Nagasaki, 856-8562, Japan
| | - Keita Fujikawa
- Department of Rheumatology, Japan Community Health care Organization, Isahaya General Hospital, Eishohigashi-machi 24-1, Isahaya, 854-8501, Japan
| | - Satoshi Yamasaki
- Department of Rheumatology, Kurume University Medical Center, Kokubu 155-1 1-2-3, Kurume, 734-8551, Japan
| | - Tadashi Nakamura
- Department of Rheumatology, Sakurajyuji Hospital, Miyukibe 1-1-1, Kumamoto, 861-4173, Japan
| | - Tomohiro Koga
- Department of Immunology and Rheumatology, Unit of Translational Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto1-7-1, Nagasaki, 852-8501, Japan
| | - Toshimasa Shimizu
- Department of Immunology and Rheumatology, Unit of Translational Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto1-7-1, Nagasaki, 852-8501, Japan
| | - Masataka Umeda
- Department of Immunology and Rheumatology, Unit of Translational Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto1-7-1, Nagasaki, 852-8501, Japan
| | - Fumiaki Nonaka
- Departments of Rheumatology, Sasebo City General Hospital, Hirase 9-3, Sasebo, 857-8511, Japan
| | - Michio Yasunami
- Department of Medical Genomics, Life Science Institute, Saga-ken Medical Centre Koseikan, 400 Kasemachi-Nakabaru, Saga, 840-8571, Japan
| | - Yukitaka Ueki
- Department of Rheumatology, Sasebo Chuo Hospital, Yamato 15, Sasebo, 857-1195, Japan
| | - Katsumi Eguchi
- Department of Rheumatology, Sasebo Chuo Hospital, Yamato 15, Sasebo, 857-1195, Japan
| | - Naoyuki Tsuchiya
- Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Shigeto Tohma
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, 252-0392, Japan
| | - Koh-Ichiro Yoshiura
- Department of Human Genetics, Atomic Bomb Disease Institute, Nagasaki University, Sakamoto 1-12-4, Nagasaki, 852-8523, Japan
| | - Hiromasa Ohira
- Department of Gastroenterology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan
| | - Atsushi Kawakami
- Department of Immunology and Rheumatology, Unit of Translational Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto1-7-1, Nagasaki, 852-8501, Japan
| | - Kiyoshi Migita
- Department of Rheumatology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan.
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Isobe N, Oksenberg JR. Genetic studies of multiple sclerosis and neuromyelitis optica: Current status in European, African American and Asian populations. ACTA ACUST UNITED AC 2014. [DOI: 10.1111/cen3.12078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Noriko Isobe
- Department of Neurology; School of Medicine; University of California; San Francisco CA USA
| | - Jorge R. Oksenberg
- Department of Neurology; School of Medicine; University of California; San Francisco CA USA
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Sato DK, Lana-Peixoto MA, Fujihara K, de Seze J. Clinical Spectrum and Treatment of Neuromyelitis Optica Spectrum Disorders: Evolution and Current Status. Brain Pathol 2013; 23:647-60. [DOI: 10.1111/bpa.12087] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 08/15/2013] [Indexed: 12/18/2022] Open
Affiliation(s)
| | | | - Kazuo Fujihara
- Department of Multiple Sclerosis Therapeutics; Tohoku University Graduate School of Medicine; Sendai; Japan
| | - Jerome de Seze
- Department of Neurology; Strasbourg University and Clinical Investigation Center; Strasbourg Hospital; Strasbourg; France
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Kira JI. Genetic and environmental factors underlying the rapid changes in epidemiological and clinical features of multiple sclerosis and neuromyelitis optica in Japanese. ACTA ACUST UNITED AC 2013. [DOI: 10.1111/cen3.12034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jun-ichi Kira
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
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Myelin oligodendrocyte glycoprotein induces aquaporin-4 autoantibodies in mouse experimental autoimmune encephalomyelitis. J Neuroimmunol 2013; 261:1-6. [PMID: 23707078 DOI: 10.1016/j.jneuroim.2013.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 03/18/2013] [Accepted: 03/22/2013] [Indexed: 11/22/2022]
Abstract
To investigate whether AQP4 autoantibodies (AQP4-Ab) are causative for neuromyelitis optica (NMO), the production of AQP4-Ab and clinical experimental autoimmune encephalomyelitis (EAE) was investigated in mice administered with mouse AQP4 antigen or myelin oligodendrocyte glycoprotein (MOG35-55) alone, and in combination. Eight- to twelve-week-old female C57BL/6 mice were randomly immunized with encephalitogenic mixture containing 300 μg of MOG35-55 or AQP4 antigen alone, and in combination in complete Freund's adjuvant supplemented with H37Ra M. tuberculosis. The incidence of EAE, Weaver 15 scores, and body weight was evaluated. ELISA was used to detect serum mouse AQP4-Ab. Mice injected with MOG35-55 and MOG33-35 plus AQP4 antigen began to show EAE symptoms 12 days after immunization. The incidence of EAE was 91.6%, and 62.5%, for MOG35-55 alone and MOG33-35 plus AQP4 antigen groups, respectively, while AQP4 antigen alone didn't develop EAE. In all but the control group, serum AQP4-Ab levels were increased, and correlated positively with Weaver 15 score (rs=0.713, p=0.000) and negatively with body weight changes (rs=-0.415, p=0.011). Injection of human NMO sera positive for AQP4-Ab exacerbated MOG-induced EAE. Our results suggest that AQP4-Ab can be produced in MOG-induced MS model, and itself is not sufficient for the development of EAE, implying that NMO might be a subtype or transition from MS.
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Huang J, Yoshimura S, Isobe N, Matsushita T, Yonekawa T, Sato S, Yamasaki R, Kira JI. A NOTCH4 missense mutation confers resistance to multiple sclerosis in Japanese. Mult Scler 2013; 19:1696-703. [PMID: 23549433 DOI: 10.1177/1352458513482512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND The G allele of NOTCH4 rs422951 is protective against demyelinating disease in Japanese. OBJECTIVES The purpose of this study was to assess the relation of the G allele to neuromyelitis optica (NMO)/NMO spectrum disorder (NMOSD) and multiple sclerosis (MS) and the interaction between the G allele and HLA-DRB1 alleles, and to clarify any association of the G allele with clinical features. METHODS DNA sequencing was used to genotype 106 NMO/NMOSD patients, 118 MS patients and 152 healthy controls (HCs) for rs422951. RESULTS G allele frequency in MS patients, but not that in NMO/NMOSD patients, was lower than that in HCs (8.9% vs 21.7%, p<0.0001, odds ratio (OR)=0.35). HLA-DRB1*0405 was positively associated with MS (OR=2.22, p(corr) =0.0380) while DRB1*0901 was negatively associated (OR=0.32, p(corr) =0.0114). Logistic regression analyses revealed that, after adjusting for gender and either HLA-DRB1*0405 or DRB1*0901, rs422951 was associated with MS in the dominant model (OR=0.37, 95% confidence interval (CI)= 0.20-0.66, p=0.0012). Haplotype analyses identified two susceptible and three resistant haplotypes formed from rs422951 and either HLA-DRB1*0405 or DRB1*0901. There were no statistically significant differences in clinical features between G allele carriers and non-G allele carriers. CONCLUSION This NOTCH4 missense mutation decreased the risk for developing MS in Japanese, but did not affect clinical features of those who had already developed the disease.
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Affiliation(s)
- Jian Huang
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Sato DK, Nakashima I, Fukazawa T, Shimizu Y, Tomizawa Y, Yokoyama K, Misu T, Creeke PI, Farrell R, Giovannoni G, Itoyama Y, Fujihara K, Aoki M. Neutralizing antibodies are associated with a reduction of interferon-β efficacy during the treatment of Japanese multiple sclerosis patients. TOHOKU J EXP MED 2013; 228:85-92. [PMID: 22976494 DOI: 10.1620/tjem.228.85] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Multiple sclerosis (MS) is a chronic immune-mediated inflammatory demyelinating disease of the central nervous system. Interferon-β (IFN-β) has been used as the first line therapy for MS treatment in Japan, but patients treated with IFN-β may develop antibodies, known as neutralizing antibodies (NAbs), which abrogate its therapeutic effects. Intramuscular IFN-β 1a and subcutaneous IFN-β 1b are currently available in Japan, but large-scale studies evaluating the prevalence and clinical implications of NAbs against these IFN-β preparations in MS patients have only been performed in Caucasian populations. NAbs positivity has been reported to be associated with HLA-DRB1 alleles, suggesting that the positivity might differ among populations with distinct genetic backgrounds. Clinical information and sera were collected from 229 consecutive MS patients treated with IFN-β in 4 centers in Japan. Sera were tested for NAbs using a luciferase reporter gene assay. In total, 5.2% of IFN-β-1a-treated patients (4/77) and 30.3% of IFN-β-1b-treated patients (46/152) were positive for Nabs. The frequency of NAbs was highest in patients treated for 13 to 24 months. Clinical relapse and contrast-enhancing lesions in the magnetic resonance imaging increased together with NAbs titers in this group. In conclusion, the prevalence of NAbs in Japanese MS patients is similar to that in Caucasian populations and is associated with an increase in disease activity. Therefore, routine NAbs testing is recommended also in Asian populations to ensure the early identification of patients who would benefit from a change in therapy.
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Affiliation(s)
- Douglas Kazutoshi Sato
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
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Rose AM, Bell LCK. Epistasis and immunity: the role of genetic interactions in autoimmune diseases. Immunology 2012; 137:131-8. [PMID: 22804709 DOI: 10.1111/j.1365-2567.2012.03623.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Autoimmune disorders are a complex and varied group of diseases that are caused by breakdown of self-tolerance. The aetiology of autoimmunity is multi-factorial, with both environmental triggers and genetically determined risk factors. In recent years, it has been increasingly recognized that genetic risk factors do not act in isolation, but rather the combination of individual additive effects, gene-gene interactions and gene-environment interactions determine overall risk of autoimmunity. The importance of gene-gene interactions, or epistasis, has been recently brought into focus, with research demonstrating that many autoimmune diseases, including rheumatic arthritis, autoimmune glomerulonephritis, systemic lupus erythematosus and multiple sclerosis, are influenced by epistatic interactions. This review sets out to examine the basic mechanisms of epistasis, how epistasis influences the immune system and the role of epistasis in two major autoimmune conditions, systemic lupus erythematosus and multiple sclerosis.
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Affiliation(s)
- Anna M Rose
- Department of Genetics, UCL Institute of Ophthalmology, London, UK.
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Kira JI. Genetic and environmental backgrounds responsible for the changes in the phenotype of MS in Japanese subjects. Mult Scler Relat Disord 2012; 1:188-95. [PMID: 25877266 DOI: 10.1016/j.msard.2012.05.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 04/19/2012] [Accepted: 05/12/2012] [Indexed: 11/16/2022]
Abstract
There are two distinct phenotypes of multiple sclerosis (MS) in Asians, manifesting as opticospinal (OSMS) and conventional (CMS) forms. In Japan, the results of four nationwide surveys of MS conducted between 1972 and 2004 have revealed a four-fold increase in the estimated number of clinically definite MS patients in 2003 compared with 1972; a shift in the peak age at onset from the early 30s in 1989 to the early 20s in 2003; a successive proportional decrease in optic-spinal involvement in clinically definite MS patients; an increase in the number of CMS patients with Barkhof brain lesions with advancing birth year and a decrease in the number of OSMS patients with LESCLs. These findings suggest that MS phenotypes are drastically altered by environmental factors such as latitude and "Westernization". Helicobacter pylori infection rates, reflecting sanitary conditions in infancy, are significantly different between CMS and OSMS patients. Both phenotypes show distinct HLA class II gene associations. Therefore, changes in environmental factors may have differentially influenced susceptibility to each disease subtype, given that disease susceptibility is only partly genetically determined.
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Affiliation(s)
- Jun-Ichi Kira
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan.
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Corthals AP. Multiple sclerosis is not a disease of the immune system. QUARTERLY REVIEW OF BIOLOGY 2012; 86:287-321. [PMID: 22384749 DOI: 10.1086/662453] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Multiple sclerosis is a complex neurodegenerative disease, thought to arise through autoimmunity against antigens of the central nervous system. The autoimmunity hypothesis fails to explain why genetic and environmental risk factors linked to the disease in one population tend to be unimportant in other populations. Despite great advances in documenting the cell and molecular mechanisms underlying MS pathophysiology, the autoimmunity framework has also been unable to develop a comprehensive explanation of the etiology of the disease. I propose a new framework for understanding MS as a dysfunction of the metabolism of lipids. Specifically, the homeostasis of lipid metabolism collapses during acute-phase inflammatory response triggered by a pathogen, trauma, or stress, starting a feedback loop of increased oxidative stress, inflammatory response, and proliferation of cytoxic foam cells that cross the blood brain barrier and both catabolize myelin and prevent remyelination. Understanding MS as a chronic metabolic disorder illuminates four aspects of disease onset and progression: 1) its pathophysiology; 2) genetic susceptibility; 3) environmental and pathogen triggers; and 4) the skewed sex ratio of patients. It also suggests new avenues for treatment.
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Affiliation(s)
- Angelique P Corthals
- Department of Sciences, John Jay College of Criminal Justice, City University of New York New York, New York 10019, USA.
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Abstract
We present here the rare case of a 73-year-old patient with very late-onset multiple sclerosis who developed autoimmune polyendocrine syndrome (APS)-3. Despite only a few reports describing the association between multiple sclerosis and APS, both of these diseases have been shown to be associated with HLA-DR4. Intriguingly, the HLA genotype profile of this patient included HLA-DR4 which, fine mapped to the DRB1*0405-DQA1*0303-DQB1*0401 extended haplotype, reported to be a susceptibility haplotype for APS-3 in Japan. This unique genetic background might explain the clinical picture of this patient.
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McElroy JP, Isobe N, Gourraud PA, Caillier SJ, Matsushita T, Kohriyama T, Miyamoto K, Nakatsuji Y, Miki T, Hauser SL, Oksenberg JR, Kira J. SNP-based analysis of the HLA locus in Japanese multiple sclerosis patients. Genes Immun 2011; 12:523-30. [PMID: 21654846 DOI: 10.1038/gene.2011.25] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Although several major histocompatibility complex (MHC)-wide single-nucleotide polymorphism (SNP) studies have been performed in populations of European descent, none have been performed in Asian populations. The objective of this study was to identify human leukocyte antigen (HLA) loci associated with multiple sclerosis (MS) in a Japanese population genotyped for 3534 MHC region SNPs. Using a logistic regression model, two SNPs (MHC Class III SNP rs422951 in the NOTCH4 gene and MHC Class II SNP rs3997849, susceptible alleles A and G, respectively) were independently associated with MS susceptibility (204 patients; 280 controls), two (MHC Class II SNP rs660895 and MHC Class I SNP rs2269704 in the NRM gene, susceptible alleles G and G, respectively) with aquaporin-4- (AQP4-) MS susceptibility (149 patients; 280 controls) and a single SNP (MHC Class II SNP rs1694112, susceptible allele G) was significant when contrasting AQP4+ against AQP4- patients. Haplotype analysis revealed a large susceptible association, likely DRB1*04 or a locus included in the DRB1*04 haplotype, with AQP4- MS, which excluded DRB1*15:01. This study is the largest study of the HLA's contribution to MS in Japanese individuals.
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Affiliation(s)
- J P McElroy
- Department of Neurology, University of California, San Francisco (UCSF), San Francisco, CA 94143, USA.
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Relationship between HLA-DRB1 polymorphism and susceptibility or resistance to multiple sclerosis in Caucasians: a meta-analysis of non-family-based studies. Autoimmun Rev 2011; 10:474-81. [PMID: 21440682 DOI: 10.1016/j.autrev.2011.03.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 03/16/2011] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To identify the contribution of HLA-DRB1 alleles to susceptibility or resistance to multiple sclerosis (MS) in Caucasians through a meta-analysis of non-family-based studies. METHODS A systematic review of case-control studies in Caucasians was performed. Studies examining allele or phenotype frequencies were analyzed separately. Odds ratio (OR) and 95% confidence intervals (CIs) were used. We also used the relatively predispositional effect (RPE) method to analyze several allele frequency studies to avoid skewed results due to some strongly associated alleles. RESULTS A total of 5464 cases and 7809 controls from 14 allele frequency studies and a total of 5401 cases and 7538 controls from 23 phenotype frequency studies were analyzed. DRB1*15 was definitely the strongest risk factor for MS (allele group, Pc<0.00013, OR 2.59, 95%CI 2.34-2.87; phenotype group, Pc<0.00013, OR 3.35, 95%CI 2.95-3.80). DRB1*03 frequencies were significantly increased among MS cases in the phenotype group (Pc= 0.0013, OR 1.21, 95%CI 1.09-1.33) but not in the allele group. DRB1*14 and DRB1*07 showed protective effects against MS in both groups (DRB1*14, allele group, Pc<0.00013, OR 0.53, 95%CI 0.42-0.66; phenotype group, Pc<0.00013, OR 0.57, 95%CI 0.45-0.71; DRB1*07, allele group, Pc<0.0026, OR 0.75, 95%CI 0.64-0.87; phenotype group, Pc<0.00013, OR 0.67, 95%CI 0.61-0.73). By RPE method, DRB1*14, and DRB1*07 showed protective effects after excluding DRB1*15 from the analysis. DRB1*03 was significantly higher in MS cases than controls after removing both DRB1*15 and DRB1*14. CONCLUSIONS In Caucasians, we highlighted the definite protective role of HLA-DRB1*14 and DRB1*07 for MS. DRB1*03 is probably the only risk factor for MS besides DRB1*15 and a common genetic foundation for autoimmune disease. Targeting to these alleles may have potential values in prevention or therapy for MS in the specific population.
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Kira JI. Neuromyelitis optica and opticospinal multiple sclerosis: Mechanisms and pathogenesis. PATHOPHYSIOLOGY 2011; 18:69-79. [DOI: 10.1016/j.pathophys.2010.04.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Revised: 03/24/2010] [Accepted: 04/08/2010] [Indexed: 12/28/2022] Open
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Wang H, Dai Y, Qiu W, Zhong X, Wu A, Wang Y, Lu Z, Bao J, Hu X. HLA-DPB1 0501 is associated with susceptibility to anti-aquaporin-4 antibodies positive neuromyelitis optica in southern Han Chinese. J Neuroimmunol 2010; 233:181-4. [PMID: 21130504 DOI: 10.1016/j.jneuroim.2010.11.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 10/31/2010] [Accepted: 11/03/2010] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To analyze the role of HLA-DRB1 and -DPB1 alleles in the pathogenesis of neuromyelitis optica (NMO) and multiple sclerosis in Southern Han Chinese. METHODS Thirty serum anti-aquaporin 4 antibodies (AQP4-Ab)-positive NMO patients, 53 conventional multiple sclerosis (C-MS) patients, and 93 controls (CTLs) were enrolled. The HLA-DRB1 and -DPB1 alleles of the subjects were determined by sequencing-based typing (SBT). RESULTS The frequency of the DRB1 0901 was lower in NMO patients than in CTLs (P(uncorr)=0.022, OR: 0.194, 95% CI: 0.043-0.876), and DRB1 1602 was higher in NMO patients than in C-MS (P(uncorr)=0.038, OR: 3.491, 95% CI: 1.024-11.896) and CTLs (P(uncorr)=0.051, OR: 2.711, 95% CI: 0.971-7.556). The frequency of DPB1 0501 was significant higher in NMO patients than in C-MS (P(uncorr)=0.018, OR: 4.629, 95% CI: 1.235-17.350) and CTLs (P(uncorr)=0.001, P(corr)=0.022, OR: 7.096, 95% CI: 2.011-25.044). CONCLUSIONS DPB1 0501 correlates with risk of AQP4-Ab positive NMO in Southern Han Chinese.
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Affiliation(s)
- Honghao Wang
- Multiple Sclerosis Center, Department of Neurology, The Third Affiliated Hospital of Sun yat-sen University, Guangzhou, Guangdong Province, China
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Bibliography. Genetics. Current world literature. Curr Opin Pediatr 2010; 22:833-5. [PMID: 21610333 DOI: 10.1097/mop.0b013e32834179f9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Matiello M, Schaefer-Klein J, Brum DG, Atkinson EJ, Kantarci OH, Weinshenker BG, the NMO genetics collaborators. HLA-DRB1*1501 tagging rs3135388 polymorphism is not associated with neuromyelitis optica. Mult Scler 2010; 16:981-4. [DOI: 10.1177/1352458510374340] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Association of the HLA-DRB1*1501 allele with multiple sclerosis is well established, but its association with neuromyelitis optica has only been evaluated in small populations. Methods: We performed a case-control genetic association study to evaluate the association of HLA-DRB1*1501 with neuromyelitis optica. The single nucleotide polymorphism rs3135388, which tags HLA-DRB1*1501, was genotyped in 164 patients with neuromyelitis optica, 220 patients with multiple sclerosis and 959 controls matched for age, gender and ethnicity. Genotyping for rs3135388 was performed by Taqman-based 5' nuclease assay. Results: Rs3135388*A was positively associated with multiple sclerosis (OR = 3.93; 95% CI = 2.58—5.97, p = 1.18 × 10-09) but negatively associated with NMO (OR = 0.57; 95% CI = 0.36—0.91, p = 0.01). Conclusions: Multiple sclerosis and neuromyelitis optica differ in their associations with DRB1*1501.
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Affiliation(s)
| | | | - Doralina G Brum
- Department of Neurology, Medical School of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
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