1
|
Alvarenga MP, do Carmo LF, Vasconcelos CCF, Alvarenga MP, Alvarenga-Filho H, de Melo Bento CA, Paiva CLA, Leyva-Fernández L, Fernández Ó, Papais-Alvarenga RM. Neuromyelitis optica is an HLA associated disease different from Multiple Sclerosis: a systematic review with meta-analysis. Sci Rep 2021; 11:152. [PMID: 33420337 PMCID: PMC7794341 DOI: 10.1038/s41598-020-80535-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 12/22/2020] [Indexed: 01/29/2023] Open
Abstract
Neuromyelitis Optica and Multiple Sclerosis are idiopathic inflammatory demyelinating diseases of the central nervous system that currently are considered distinct autoimmune diseases, so differences in genetic susceptibility would be expected. This study aimed to investigate the HLA association with Neuromyelitis Optica by a systematic review with meta-analysis. The STROBE instrument guided research paper assessments. Thirteen papers published between 2009 and 2020 were eligible. 568 Neuromyelitis Optica patients, 41.4% Asians, 32.4% Latin Americans and 26.2% Europeans were analyzed. Only alleles of the DRB1 locus were genotyped in all studies. Neuromyelitis Optica patients have 2.46 more chances of having the DRB1*03 allelic group than controls. Ethnicity can influence genetic susceptibility. The main HLA association with Neuromyelitis Optica was the DRB1*03:01 allele in Western populations and with the DPB1*05:01 allele in Asia. Differences in the Multiple Sclerosis and Neuromyelitis Optica genetic susceptibility was confirmed in Afro descendants. The DRB1*03 allelic group associated with Neuromyelitis Optica has also been described in other systemic autoimmune diseases.
Collapse
Affiliation(s)
- Marcos Papais Alvarenga
- Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rua Mariz e Barros 775, Rio de Janeiro, RJ, 20270-004, Brazil
- Departamento de Neurologia, Hospital Federal da Lagoa, Rua Jardim Botânico 501, Rio de Janeiro, RJ, 22470-050, Brazil
- Universidade Estácio de Sá (UNESA), Avenida Ayrton Senna, 2800, Barra da Tijuca, Rio de Janeiro, RJ, 22775-003, Brazil
| | - Luciana Ferreira do Carmo
- Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rua Mariz e Barros 775, Rio de Janeiro, RJ, 20270-004, Brazil
| | - Claudia Cristina Ferreira Vasconcelos
- Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rua Mariz e Barros 775, Rio de Janeiro, RJ, 20270-004, Brazil
| | - Marina Papais Alvarenga
- Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rua Mariz e Barros 775, Rio de Janeiro, RJ, 20270-004, Brazil
| | - Helcio Alvarenga-Filho
- Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rua Mariz e Barros 775, Rio de Janeiro, RJ, 20270-004, Brazil
- Universidade Estácio de Sá (UNESA), Avenida Ayrton Senna, 2800, Barra da Tijuca, Rio de Janeiro, RJ, 22775-003, Brazil
| | - Cleonice Alves de Melo Bento
- Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rua Mariz e Barros 775, Rio de Janeiro, RJ, 20270-004, Brazil
| | - Carmen Lucia Antão Paiva
- Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rua Mariz e Barros 775, Rio de Janeiro, RJ, 20270-004, Brazil
| | - Laura Leyva-Fernández
- Instituto de Investigación Biomédica de Málaga-IBIMA, UGCNeurociencias, Hospital Regional Universitario de Málaga, Avenida de Carlos Haya sn, 29010, Málaga, Spain
- Red Temática de Investigación Cooperativa: Red Española de Esclerosis Multiple REEM (RD 16/0015/0010), Barcelona, Spain
| | - Óscar Fernández
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, Avenida de Carlos Haya sn, 29010, Málaga, Spain
| | - Regina Maria Papais-Alvarenga
- Programa de Pós-Graduação em Neurologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rua Mariz e Barros 775, Rio de Janeiro, RJ, 20270-004, Brazil.
- Departamento de Neurologia, Hospital Federal da Lagoa, Rua Jardim Botânico 501, Rio de Janeiro, RJ, 22470-050, Brazil.
| |
Collapse
|
2
|
Kay CSK, Scola RH, Arndt RC, Lorenzoni PJ, Werneck LC. HLA-alleles class I and II associated with genetic susceptibility to neuromyelitis optica in Brazilian patients. ARQUIVOS DE NEURO-PSIQUIATRIA 2020; 77:239-247. [PMID: 31090804 DOI: 10.1590/0004-282x20190031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/08/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To study the genetic susceptibility to neuromyelitis optica (NMO) as well as the relationship between HLA genotypes and susceptibility to the disease in the southern Brazilian population. METHODS We analyzed patients with NMO, who met criteria for Wingerchuk's diagnosis of NMO, with detected serum anti-AQP4-IgG antibody. The HLA genotyping was performed by high-resolution techniques (Sanger sequencing) in patients and controls. The HLA genotypes were statistically compared with a paired control population. RESULTS The HLA genotyping revealed the diversity of the southern Brazilian population whose HLA profile resembled European and Asian populations. Some alleles had statistical correlations with a positive association (increased susceptibility) with NMO, particularly the HLA-DRB1*04:05 and *16:02. CONCLUSIONS In our study, the HLA genotype was different to that previously reported for other Brazilian populations. Although our study had a small cohort, HLA genotypes were associated with increased susceptibility to NMO for HLA-DRB1*04:05 and *16:02. The alleles of HLA class I HLA-A*02:08 and *30:09, HLA-B*08:04 and *35:04 showed an association before the Bonferroni correction.
Collapse
Affiliation(s)
- Cláudia Suemi Kamoi Kay
- Universidade Federal do Paraná, Hospital de Clínicas, Departamento de Clínica Médica, Serviço de Neurologia, Curitiba PR, Brasil
| | - Rosana Herminia Scola
- Universidade Federal do Paraná, Hospital de Clínicas, Departamento de Clínica Médica, Serviço de Neurologia, Curitiba PR, Brasil
| | - Raquel Cristina Arndt
- Universidade Federal do Paraná, Hospital de Clínicas, Departamento de Clínica Médica, Serviço de Neurologia, Curitiba PR, Brasil
| | - Paulo José Lorenzoni
- Universidade Federal do Paraná, Hospital de Clínicas, Departamento de Clínica Médica, Serviço de Neurologia, Curitiba PR, Brasil
| | - Lineu Cesar Werneck
- Universidade Federal do Paraná, Hospital de Clínicas, Departamento de Clínica Médica, Serviço de Neurologia, Curitiba PR, Brasil
| |
Collapse
|
3
|
Maghbooli Z, Sahraian MA, Naser Moghadasi A. Multiple sclerosis and human leukocyte antigen genotypes: Focus on the Middle East and North Africa region. Mult Scler J Exp Transl Clin 2020; 6:2055217319881775. [PMID: 31976083 PMCID: PMC6956601 DOI: 10.1177/2055217319881775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 08/05/2019] [Accepted: 09/18/2019] [Indexed: 01/13/2023] Open
Abstract
Recent reports have demonstrated that the prevalence of multiple sclerosis (MS) is increasing in the Middle East and North Africa region. There is also emerging evidence regarding the genetic components of MS risk. This review provides an overview of the role of genetic factors in MS susceptibility by examining human leukocyte antigen loci in patients within the Middle East and North Africa region. Most of the genetic studies conducted in the Middle East and North Africa region have been based on case–control designs, which cannot confirm direct causality of genetic variants on MS susceptibility. Moreover, there are very limited and inconsistent studies on human leukocyte antigen class I and II (DQA and DQB) in MS patients of the Middle East and North Africa region. To identify common risk haplotypes in the Middle East and North Africa region or its sub-populations, further longitudinal studies will be required.
Collapse
Affiliation(s)
| | | | - Abdorreza Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Iran
| |
Collapse
|
4
|
Al Wutayd O. Association of infections with multiple sclerosis in Gulf Cooperation Council countries: a review. J Int Med Res 2019; 48:300060519884151. [PMID: 31880177 PMCID: PMC7607054 DOI: 10.1177/0300060519884151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease that affects the central nervous system, causing inflammation, demyelination, and neurodegeneration. Infection can play a role in its etiology. Herein, a review is presented of studies that have reported an association between infection and MS risk in countries of the Arabian Gulf region. Searches of the PubMed, Google Scholar, and Science Direct databases were carried out using various search terms, and relevant studies published through January 2019 on the epidemiology of MS in Gulf Cooperation Council countries identified. MS has been found to be associated with measles in Saudi Arabia and Epstein–Barr virus in Kuwait whereas no association has been identified between risk of MS and varicella-zoster virus, mumps, or human herpesvirus-6. However, few epidemiological studies on this topic have been conducted in countries of the Gulf region. Longitudinal and serological studies to establish robust evidence between infection and risk of MS are highly recommended, and a regional MS registry is needed.
Collapse
Affiliation(s)
- O Al Wutayd
- O Al Wutayd, Department of Family and Community Medicine, Unaizah College of Medicine, Qassim University, P.O. Box 3174, Unaizah 51911, Saudi Arabia.
| |
Collapse
|
5
|
Al-Nashmi M, Taha S, Salem AH, Alsharoqi I, Bakhiet M. Distinct HLA class I and II genotypes and haplotypes are associated with multiple sclerosis in Bahrain. Biomed Rep 2018; 9:531-539. [PMID: 30546882 DOI: 10.3892/br.2018.1164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 10/10/2018] [Indexed: 12/24/2022] Open
Abstract
Multiple sclerosis (MS) has become prevalent in the Arabian Gulf area with high incidence in Bahrain due to environmental influences and genetic susceptibilities, but there is a lack of study into human leukocyte antigen (HLA) types in patients with MS in Bahrain. The present study aimed to study the HLA types expressed in MS patients compared with in control subjects. Blood samples from 50 Bahraini patients with MS and 50 Bahraini control subjects' were subjected to HLA tissue typing by polymerase chain reaction using sequence-specific primers. In comparison with those in control subjects, the allele frequencies of HLA class-I antigens A2, A9, A19, B5, B35 and B40 were higher in MS patients. For class II antigens, the allele frequencies of DR3, DR4 and DR16 were higher in MS patients. The allele frequency of DR15 was lower in MS patients than in control subjects but the difference was not statistically significant (P=0.138). The higher prevalence of the HLA-ABDR allele was common among the female patients with MS, in relapse remission stage, in cases with higher expanded disability status scale scores and with disease duration between 4 and 9 years. Haplotype HLA-A2-B40-DR2 exhibited significantly higher frequency in MS patients compared with in control subjects (P=0.03). In conclusion, the results indicated different alleles associated with MS compared with previous reviews. The present study supports the importance of identifying genetic susceptibilities and targets for therapies in specific populations and individuals, to personalize disease management in terms of prediction, protective measures and treatment.
Collapse
Affiliation(s)
- Moudi Al-Nashmi
- Department of Molecular Medicine, Princess Al-Jawhara Center for Genetics and Inherited Diseases, Arabian Gulf University, Manama 329, Bahrain
| | - Safa Taha
- Department of Molecular Medicine, Princess Al-Jawhara Center for Genetics and Inherited Diseases, Arabian Gulf University, Manama 329, Bahrain
| | - Abdel Halim Salem
- Department of Anatomy, College of Medicine and Medical Sciences, Arabian Gulf University, Manama 329, Bahrain
| | - Isa Alsharoqi
- Department of Neuroscience, Salmaniya Medical Complex, Manama 12, Bahrain
| | - Moiz Bakhiet
- Department of Molecular Medicine, Princess Al-Jawhara Center for Genetics and Inherited Diseases, Arabian Gulf University, Manama 329, Bahrain
| |
Collapse
|
6
|
Mohajer B, Abbasi N, Pishgar F, Abdolalizadeh A, Ebrahimi H, Razaviyoun T, Mohebbi F, Eskandarieh S, Sahraian MA. HLA-DRB1 polymorphism and susceptibility to multiple sclerosis in the Middle East North Africa region: A systematic review and meta-analysis. J Neuroimmunol 2018; 321:117-124. [PMID: 29957381 DOI: 10.1016/j.jneuroim.2018.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 12/17/2022]
Abstract
This meta-analysis explores association of HLA-DRB1 alleles with MS risk in the Middle-east North Africa (MENA) countries. Divided into two groups of alleles (10 studies, 899 cases/1457 controls) and phenotypes (8 studies, 1,040 cases/1,256 controls), Odds ratios (ORs) of DRB1 distribution in MS subjects were assessed using Cochrane RevMan software. DRB1*15 demonstrated significant association with MS in both groups (OR=1.6 and OR=2.51, respectively). In phenotypes, DRB1*03 and DRB1*04 had predisposing role (OR=1.8 and OR=1.9), while DRB1*07 and DRB1*11 were protective (OR=0.56 and OR=0.67). Similar but non-significant trends were seen among alleles, which in sum coincides with a Caucasian-like pattern.
Collapse
Affiliation(s)
- Bahram Mohajer
- MS Research Centre, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nooshin Abbasi
- MS Research Centre, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farhad Pishgar
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirhussein Abdolalizadeh
- MS Research Centre, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hedyeh Ebrahimi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Taraneh Razaviyoun
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farnam Mohebbi
- MS Research Centre, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sharareh Eskandarieh
- MS Research Centre, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Sahraian
- MS Research Centre, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
7
|
Optic neuritis with positive HLA-B27: Characteristic phenotype in the Chinese population. J Neurol Sci 2016; 362:100-5. [DOI: 10.1016/j.jns.2016.01.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/11/2016] [Accepted: 01/15/2016] [Indexed: 01/18/2023]
|
8
|
Abstract
Background:Optic Neuritis (ON) is one of the most common clinically isolated syndromes which develops into clinically diagnosed Multiple Sclerosis (CDMS) over time.Objective:To assess the conversion rate of Iranian patients presenting with idiopathic ON to CDMS as well as monitoring potential demographic and clinical risk factors.Methods:Atotal of 219 patients' medical records of idiopathic ON from March 2001 to May 2009 were reviewed. Demographic findings, ophthalmologic characteristics on admission and discharge, diagnostic approaches, type and dosage of therapy were retrospectively reviewed. A structured telephone interview was then conducted to identify patients who had subsequently been diagnosed with MS. Survival analysis was used to evaluate the cumulative probability of MS conversion and contributory risk factors.Results:From the 219 ON patients, 109 [age 11-51, female: 81%] were followed up. Among the male gender the mean age of patients developing MS was significantly lower (P=0.01). In cox regression model, female sex (p=0.07), bilateral ON (p=0.003), MRI abnormalities (p <0.001) and high dose (5g) corticosteroid therapy (p<0.001) were identified as risk factors for the development of MS. The two and five year cumulative probability of developing MS were 27% and 45%, respectively.Conclusions:Idiopathic ON in Iranian patients carries higher risk of progression to MS compared to other Asian countries. MRI lesions are the strongest independent risk factor of developing CDMS. Bilateral ON, female gender and high dose corticosteroid therapy are also important factors in predicting CDMS development.
Collapse
|
9
|
Mortazavi H, Amirzargar AA, Esmaili N, Toofan H, Ehsani AH, Hosseini SH, Rezaei N. Association of human leukocyte antigen class I antigens in Iranian patients with pemphigus vulgaris. J Dermatol 2013; 40:244-8. [DOI: 10.1111/1346-8138.12071] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 11/19/2012] [Indexed: 11/29/2022]
Affiliation(s)
| | - Ali Akbar Amirzargar
- Molecular Immunology Research Center and Department of Immunology; School of Medicine; Tehran University of Medical Sciences; Tehran; Iran
| | | | - Hesam Toofan
- Department of Dermatology; Razi Hospital; Tehran University of Medical Sciences; Tehran University of Medical Sciences; Tehran; Iran
| | - Amir Hooshang Ehsani
- Department of Dermatology; Razi Hospital; Tehran University of Medical Sciences; Tehran University of Medical Sciences; Tehran; Iran
| | - Seyed Hamed Hosseini
- Knowledge Utilization Research Center; School of Public Health; Tehran University of Medical Sciences; Tehran; Iran
| | | |
Collapse
|
10
|
Mousavi Jazi M, Solgi G, Asl Roosta H, Noshad S, Moslemi N, Sadrimanesh R, Moradi B, A. Amirzargar A. HLA-DRB and HLA-DQA/HLA-DQB allele and haplotype frequencies in Iranian patients with aggressive periodontitis. J Periodontal Res 2013; 48:533-9. [DOI: 10.1111/jre.12043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2012] [Indexed: 12/13/2022]
Affiliation(s)
- M. Mousavi Jazi
- Department of Periodontics; School of Dentistry; Tehran University of Medical Sciences; Tehran Iran
| | - G. Solgi
- Department of Immunology; School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - H. Asl Roosta
- Department of Periodontics; School of Dentistry; Tehran University of Medical Sciences; Tehran Iran
| | - S. Noshad
- Molecular Immunology Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - N. Moslemi
- Department of Periodontics; School of Dentistry; Tehran University of Medical Sciences; Tehran Iran
| | - R. Sadrimanesh
- Department of Prosthodontics; School of Dentistry; Tehran University of Medical Sciences; Tehran Iran
| | - B. Moradi
- Molecular Immunology Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - A. A. Amirzargar
- Molecular Immunology Research Center; Tehran University of Medical Sciences; Tehran Iran
| |
Collapse
|
11
|
Horakova D, Zivadinov R, Weinstock-Guttman B, Havrdova E, Tamaño-Blanco M, Tyblova M, Hussein S, Bergsland N, Willis L, Krasensky J, Vaneckova M, Seidl Z, Lelkova P, Ramanathan M. HLA DRB1*1501 is only modestly associated with lesion burden at the first demyelinating event. J Neuroimmunol 2011; 236:76-80. [DOI: 10.1016/j.jneuroim.2011.04.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2011] [Revised: 04/19/2011] [Accepted: 04/24/2011] [Indexed: 01/02/2023]
|
12
|
Mantrana-Bermejo ME, Rueda-Rueda T, Bernabeu-Wittel J, González-Escribano F, García-Hernández F, Sánchez-Román J. Características clínicas, epidemiológicas y asociación con el sistema HLA en pacientes con pars planitis. Med Clin (Barc) 2010; 135:205-8. [DOI: 10.1016/j.medcli.2010.02.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 02/10/2010] [Accepted: 02/11/2010] [Indexed: 11/16/2022]
|
13
|
IL-2, IFN-γ, and IL-12 Gene Polymorphisms and Susceptibility to Multiple Sclerosis. J Clin Immunol 2009; 29:747-51. [DOI: 10.1007/s10875-009-9310-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Accepted: 05/28/2009] [Indexed: 12/13/2022]
|
14
|
Ko M, Chaudhry F, Hickman SJ, Jay WM. Optic Neuritis: An Update. II. Optic Neuritis and Multiple Sclerosis. Neuroophthalmology 2009. [DOI: 10.1080/01658100802638602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
15
|
McGonagle D, Georgouli T. The importance of 'Mechnikov's thorn' for an improved understanding of 21st century medicine and immunology: a view from the eye. Scand J Immunol 2008; 68:129-39. [PMID: 18510591 DOI: 10.1111/j.1365-3083.2008.02114.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In 1908, Ehrlich and Mechnikov shared the Nobel Prize in Medicine for their independent studies that set the scene for the modern understanding of innate and adaptive immunity. However, 20th century immunology thinking was dominated by aberrant adaptive immunity but this never adequately explained the full spectrum of inflammatory disease. This article draws on medical observations, from where immunology originated, and uses the example of the eye to illustrate how the integration of medicine and immunology leads to an improved understanding of inflammation against self. The spectrum of ocular inflammation can be viewed as either predominantly adaptive immune mediated (mostly the realm of immunology), or predominantly due to ocular tissues factors that lead to regional innate immune activation (the realm of medicine), or a variable interaction between the two. Just as the thorns that Mechnikov inserted into molluscs lead to localized innate immune activation; ocular inflammation can likewise be driven by non-immune factors that include tissue degeneration or microdamage. The present article emphasizes the importance of such factors in the initiation or phenotypic expression of ocular immunopathology allowing different immunological dogmas including self-non-self discrimination, immunological tolerance and immunoprivilege to be viewed in a different light. This scheme also leads to an appreciation of how the innate immune system may be the sole perpetuator of some ocular immunopathologies. We propose that this integrated view of medicine and immunology is crucial for understanding immunology from a translational angle and has implications far beyond ocular disease.
Collapse
Affiliation(s)
- D McGonagle
- The Leeds Institute of Molecular Medicine, St. James's University Hospital, University of Leeds, UK.
| | | |
Collapse
|
16
|
Tuwir I, Dunne C, Crowley J, Saddik T, Murphy R, Cassidy L. The relationship between HLA-DRB1 alleles and optic neuritis in Irish patients and the risk of developing multiple sclerosis. Br J Ophthalmol 2007; 91:1288-92. [PMID: 17895416 PMCID: PMC2001012 DOI: 10.1136/bjo.2006.109371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To investigate the role of the major histocompatibility complex in Irish patients with optic neuritis (ON) and determine whether HLA-DRB1 genotypes are a risk factor for the development of multiple sclerosis (MS) in such patients. METHOD All patients were Caucasian, had Irish ancestry and had MRI of brain and optic nerves within 2-3 weeks of presentation. Patients were referred to a neurologist if MRI findings were consistent with a diagnosis of MS. HLA-DRB1 allele and phenotype frequencies for 78 patients with a clinical diagnosis of acute ON were compared with those for 250 healthy bone marrow donors. RESULTS An ON/MS positive patient was 3.4 times more likely than an ON/MS negative patient to be DRB1*15 positive. No difference in age profile was detected between ON/MS positive and ON/MS negative patients or between the ON male and female subgroups. No gender or HLA-DRB1 association was identified for ON/MS negative patients. Female gender was significantly increased among ON/MS positive patients with a p value of 0.0053. CONCLUSIONS DRB1*15 is a significant predisposing factor for ON. This ON patient cohort has also provided an opportunity to evaluate the relationship of HLA genotype with the risk of MS development. The findings of this study indicate that Irish individuals presenting with ON and who are HLA DRB1*15 positive have a higher risk than HLA DRB1*15 negative patients of presenting with MRI findings indicative of MS. This study has also demonstrated that female gender is a risk factor for developing MS in the Irish population.
Collapse
Affiliation(s)
- Ismail Tuwir
- The Royal Victoria Eye and Ear Hospital, Adelaide Road, Dublin 2, Ireland
| | | | | | | | | | | |
Collapse
|
17
|
Smestad C, Brynedal B, Jonasdottir G, Lorentzen AR, Masterman T, Akesson E, Spurkland A, Lie BA, Palmgren J, Celius EG, Hillert J, Harbo HF. The impact of HLA-A and -DRB1 on age at onset, disease course and severity in Scandinavian multiple sclerosis patients. Eur J Neurol 2007; 14:835-40. [PMID: 17662002 DOI: 10.1111/j.1468-1331.2007.01825.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The human leucocyte antigen (HLA) class II haplotype DRB1*15-DQB1*06 (DR15-DQ6) is associated with susceptibility to multiple sclerosis (MS), and HLA class I associations in MS have also been reported. However, the influence of HLA class I and II alleles on clinical phenotypes in MS has not yet been completely studied. This study aimed at evaluating the impact of HLA-A and -DRB1 alleles on clinical variables in Scandinavian MS patients. The correlation between HLA-A or -DRB1 alleles and age at onset, disease course and Multiple Sclerosis Severity Score (MSSS) were studied in 1457 Norwegian and Swedish MS patients by regression analyses and Kruskal-Wallis rank sum test. Presence of HLA-DRB1*15 was correlated with younger age at onset of disease (corrected P = 0.009). No correlation was found between HLA-A and the variables studied. This study analysed the effect of HLA-A on clinical variables in a large Scandinavian sample set, but could not identify any significant contribution from HLA-A on the clinical phenotype in MS. However, associations between HLA-DRB1*15 and age at onset of MS were reproduced in this extended Scandinavian MS cohort.
Collapse
Affiliation(s)
- C Smestad
- Department of Neurology, Ullevål University Hospital, Oslo, Norway.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Abstract
Optic neuritis (ON) is the initial presentation in 15% to 20% of cases of multiple sclerosis (MS). Thirty-eight percent to 50% of patients with MS develop ON at some point during the course of their disease. The Optic Neuritis Treatment Trial (ONTT) provided much prospective data about the clinical presentation, clinical course with respect to treatment, and development of MS in patients with ON. The clinical course of MS initially involves episodes of demyelination followed by full recovery; however, later attacks often leave persistent deficits that lead to secondary progression of the disease. The risk of developing progressive neurologic deficits can be reduced by starting therapy with immunomodulating drugs early in the course of the disease. Optical coherence tomography is a noninvasive way to monitor patients with ON to determine if they are undergoing subclinical axonal loss of ganglion cells. Progression of axonal loss on optical coherence tomography may prompt a change in therapy or further imaging.
Collapse
Affiliation(s)
- Molly E Gilbert
- Department of Neuro-ophthalmology, Wills Eye Hospital, 840 Walnut Street, Philadelphia, PA 19107, USA
| | | |
Collapse
|