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Skarlis C, Markoglou N, Gontika M, Artemiadis A, Pons MR, Stefanis L, Dalakas M, Chrousos G, Anagnostouli M. The impact of HLA-DRB1 alleles in a Hellenic, Pediatric-Onset Multiple Sclerosis cohort: Implications on clinical and neuroimaging profile. Neurol Sci 2024:10.1007/s10072-024-07619-0. [PMID: 38819529 DOI: 10.1007/s10072-024-07619-0] [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: 02/27/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Pediatric-Onset Multiple Sclerosis (POMS) is considered a complex disease entity and several genetic, hormonal, and environmental factors have been associated with disease pathogenesis. Linkage studies in Caucasians have consistently suggested the human leukocyte antigen (HLA) polymorphisms, as the genetic locus most strongly linked to MS, with the HLA-DRB1*15:01 allele, being associated with both adult and pediatric MS patients. Here we aim to investigate the prevalence of the HLA-DRB1 alleles among a Hellenic POMS cohort and any possible associations with clinical and imaging disease features. MATERIALS AND METHODS 100 POMS patients fulfilling the IPMSSG criteria, 168 Adult-Onset MS (AOMS) patients, and 246 Healthy Controls (HCs) have been enrolled. HLA genotyping was performed with a standard low-resolution sequence-specific oligonucleotide (SSO) technique. RESULTS POMS patients display a significantly increased HLA-DRB1*03 frequency compared to both HCs [24% vs. 12.6%, OR [95%CI]: 2.19 (1.21-3.97), p=0.016) and AOMS (24% vs. 13.1%, OR [95%CI]: 2.1 (1.1-3.98), p=0.034] respectively. HLA-DRB1*03-carriers display reduced risk for brainstem lesion development (OR [CI 95%]:0.19 (0.06-0.65), p=0.011). A significantly lower frequency of HLA-DRB1*07 (4% vs 13.4%, OR (95% CI): 0.27 (0.09-0.78), p= 0.017) and HLA-DRB1*11 (37% vs 52%, OR [95% CI]: 0.54 (0.34-0.87), p= 0.016) was observed in POMS compared to HCs. CONCLUSION The HLA-DRB1*03 allele was associated with a higher risk for POMS, replicating our previous findings, and with a lower risk for brainstem lesion development, a common clinical and neuroimaging feature in POMS, while HLA-DRB1*07 and HLA-DRB1*11 display a protective role. These findings expand the existing knowledge of HLA associations and POMS.
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Affiliation(s)
- Charalampos Skarlis
- Research Immunogenetics Laboratory, First Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, Aeginition University Hospital, Vas. Sofias 72-74, 11528, Athens, Greece
| | - Nikolaos Markoglou
- Research Immunogenetics Laboratory, First Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, Aeginition University Hospital, Vas. Sofias 72-74, 11528, Athens, Greece
- First Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, Aeginition University Hospital, Vas. Sofias 72-74, 11528, Athens, Greece
| | - Maria Gontika
- Research Immunogenetics Laboratory, First Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, Aeginition University Hospital, Vas. Sofias 72-74, 11528, Athens, Greece
- Penteli Children's Hospital, Attiki, Greece
| | | | - Maria-Roser Pons
- First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Aeginition University Hospital, Vas. Sofias 72-74, 11528, Athens, Greece
| | - Leonidas Stefanis
- First Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, Aeginition University Hospital, Vas. Sofias 72-74, 11528, Athens, Greece
| | - Marinos Dalakas
- Neuroimmunology Laboratory, Department of Pathophysiology School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- Clinical Neuroimmunology and Neuromuscular Diseases Department, Thomas Jefferson University of Philadelphia, Philadelphia, Pennsylvania, USA
| | - George Chrousos
- University Research Institute of Maternal, Child and Child Health Precision Medicine, Clinical and Translational Research Unit in Endocrinology, UNESCO Chair in Adolescent Health and Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Anagnostouli
- Research Immunogenetics Laboratory, First Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, Aeginition University Hospital, Vas. Sofias 72-74, 11528, Athens, Greece.
- First Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, Aeginition University Hospital, Vas. Sofias 72-74, 11528, Athens, Greece.
- Multiple Sclerosis and Demyelinating Diseases Unit, Center of Expertise for Rare Demyelinating and Autoimmune Diseases of CNS, First Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, NKUA, Aeginition University Hospital, Athens, Greece.
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Kustrimovic N, Marino F, Cosentino M. Peripheral Immunity, Immunoaging and Neuroinflammation in Parkinson's Disease. Curr Med Chem 2019; 26:3719-3753. [PMID: 30306855 DOI: 10.2174/0929867325666181009161048] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 06/26/2018] [Accepted: 09/12/2018] [Indexed: 12/20/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disorder among elderly population, characterized by the progressive degeneration of dopaminergic neurons in the midbrain. To date, exact cause remains unknown and the mechanism of neurons death uncertain. It is typically considered as a disease of central nervous system (CNS). Nevertheless, numerous evidence has been accumulated in several past years testifying undoubtedly about the principal role of neuroinflammation in progression of PD. Neuroinflammation is mainly associated with presence of activated microglia in brain and elevated levels of cytokine levels in CNS. Nevertheless, active participation of immune system as well has been noted, such as, elevated levels of cytokine levels in blood, the presence of auto antibodies, and the infiltration of T cell in CNS. Moreover, infiltration and reactivation of those T cells could exacerbate neuroinflammation to greater neurotoxic levels. Hence, peripheral inflammation is able to prime microglia into pro-inflammatory phenotype, which can trigger stronger response in CNS further perpetuating the on-going neurodegenerative process. In the present review, the interplay between neuroinflammation and the peripheral immune response in the pathobiology of PD will be discussed. First of all, an overview of regulation of microglial activation and neuroinflammation is summarized and discussed. Afterwards, we try to collectively analyze changes that occurs in peripheral immune system of PD patients, suggesting that these peripheral immune challenges can exacerbate the process of neuroinflammation and hence the symptoms of the disease. In the end, we summarize some of proposed immunotherapies for treatment of PD.
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Affiliation(s)
- Natasa Kustrimovic
- Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Franca Marino
- Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Marco Cosentino
- Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy
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Campos-Acuña J, Elgueta D, Pacheco R. T-Cell-Driven Inflammation as a Mediator of the Gut-Brain Axis Involved in Parkinson's Disease. Front Immunol 2019; 10:239. [PMID: 30828335 PMCID: PMC6384270 DOI: 10.3389/fimmu.2019.00239] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/28/2019] [Indexed: 12/14/2022] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder affecting mainly the dopaminergic neurons of the nigrostriatal pathway, a neuronal circuit involved in the control of movements, thereby the main manifestations correspond to motor impairments. The major molecular hallmark of this disease corresponds to the presence of pathological protein inclusions called Lewy bodies in the midbrain of patients, which have been extensively associated with neurotoxic effects. Importantly, different research groups have demonstrated that CD4+ T-cells infiltrate into the substantia nigra of PD patients and animal models. Moreover, several studies have consistently demonstrated that T-cell deficiency results in a strong attenuation of dopaminergic neurodegeneration in animal models of PD, thus indicating a key role of adaptive immunity in the neurodegenerative process. Recent evidence has shown that CD4+ T-cell response involved in PD patients is directed to oxidised forms of α-synuclein, one of the main constituents of Lewy bodies. On the other hand, most PD patients present a number of non-motor manifestations. Among non-motor manifestations, gastrointestinal dysfunctions result especially important as potential early biomarkers of PD, since they are ubiquitously found among confirmed patients and occur much earlier than motor symptoms. These gastrointestinal dysfunctions include constipation and inflammation of the gut mucosa and the most distinctive pathologic features associated are the loss of neurons of the enteric nervous system and the generation of Lewy bodies in the gut. Moreover, emerging evidence has recently shown a pivotal role of gut microbiota in triggering the development of PD in genetically predisposed individuals. Of note, PD has been positively correlated with inflammatory bowel diseases, a group of disorders involving a T-cell driven inflammation of gut mucosa, which is strongly dependent in the composition of gut microbiota. Here we raised the hypothesis that T-cell driven inflammation, which mediates dopaminergic neurodegeneration in PD, is triggered in the gut mucosa. Accordingly, we discuss how structural components of commensal bacteria or how different mediators produced by gut-microbiota, including short-chain fatty acids and dopamine, may affect the behaviour of T-cells, triggering the development of T-cell responses against Lewy bodies, initially confined to the gut mucosa but later extended to the brain.
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Affiliation(s)
- Javier Campos-Acuña
- Laboratorio de Neuroinmunología, Fundación Ciencia and Vida, Ñuñoa, Santiago, Chile
| | - Daniela Elgueta
- Laboratorio de Neuroinmunología, Fundación Ciencia and Vida, Ñuñoa, Santiago, Chile
| | - Rodrigo Pacheco
- Laboratorio de Neuroinmunología, Fundación Ciencia and Vida, Ñuñoa, Santiago, Chile.,Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
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4
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Gastaldi M, Zardini E, Franciotta D. An update on the use of cerebrospinal fluid analysis as a diagnostic tool in multiple sclerosis. Expert Rev Mol Diagn 2016; 17:31-46. [DOI: 10.1080/14737159.2017.1262260] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Matteo Gastaldi
- Laboratory of Neuroimmunology, and Dept. of General Neurology, C. Mondino National Neurological Institute, University of Pavia, Pavia, Italy
| | - Elisabetta Zardini
- Laboratory of Neuroimmunology, and Dept. of General Neurology, C. Mondino National Neurological Institute, University of Pavia, Pavia, Italy
| | - Diego Franciotta
- Laboratory of Neuroimmunology, and Dept. of General Neurology, C. Mondino National Neurological Institute, University of Pavia, Pavia, Italy
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Zhao Y, Zhao Y, Li J, Zhang Y, Zhang L. HLA-DRB1*08:03:02 and HLA-DQB1*06:01:01 are associated with house dust mite-sensitive allergic rhinitis in Chinese subjects. Int Forum Allergy Rhinol 2016; 6:854-61. [PMID: 27013183 DOI: 10.1002/alr.21747] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 01/06/2016] [Accepted: 01/22/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Yanming Zhao
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital; Capital Medical University; Beijing China
| | - Yali Zhao
- Beijing Key Laboratory of Nasal Diseases; Beijing Institute of Otolaryngology; Beijing China
| | - Jingyun Li
- Beijing Key Laboratory of Nasal Diseases; Beijing Institute of Otolaryngology; Beijing China
| | - Yuan Zhang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital; Capital Medical University; Beijing China
- Beijing Key Laboratory of Nasal Diseases; Beijing Institute of Otolaryngology; Beijing China
- Department of Allergy, Beijing TongRen Hospital; Capital Medical University; Beijing China
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital; Capital Medical University; Beijing China
- Beijing Key Laboratory of Nasal Diseases; Beijing Institute of Otolaryngology; Beijing China
- Department of Allergy, Beijing TongRen Hospital; Capital Medical University; Beijing China
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Tatari-Calderone Z, Gordish-Dressman H, Fasano R, Riggs M, Fortier C, Campbell AD, Charron D, Gordeuk VR, Luban NLC, Vukmanovic S, Tamouza R. Protective effect of HLA-DQB1 alleles against alloimmunization in patients with sickle cell disease. Hum Immunol 2016; 77:35-40. [PMID: 26476208 PMCID: PMC4747802 DOI: 10.1016/j.humimm.2015.10.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/06/2015] [Accepted: 10/10/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND Alloimmunization or the development of alloantibodies to Red Blood Cell (RBC) antigens is considered one of the major complications after RBC transfusions in patients with sickle cell disease (SCD) and can lead to both acute and delayed hemolytic reactions. It has been suggested that polymorphisms in HLA genes, may play a role in alloimmunization. We conducted a retrospective study analyzing the influence of HLA-DRB1 and DQB1 genetic diversity on RBC-alloimmunization. STUDY DESIGN Two-hundred four multi-transfused SCD patients with and without RBC-alloimmunization were typed at low/medium resolution by PCR-SSO, using IMGT-HLA Database. HLA-DRB1 and DQB1 allele frequencies were analyzed using logistic regression models, and global p-value was calculated using multiple logistic regression. RESULTS While only trends towards associations between HLA-DR diversity and alloimmunization were observed, analysis of HLA-DQ showed that HLA-DQ2 (p=0.02), -DQ3 (p=0.02) and -DQ5 (p=0.01) alleles were significantly higher in non-alloimmunized patients, likely behaving as protective alleles. In addition, multiple logistic regression analysis showed both HLA-DQ2/6 (p=0.01) and HLA-DQ5/5 (p=0.03) combinations constitute additional predictor of protective status. CONCLUSION Our data suggest that particular HLA-DQ alleles influence the clinical course of RBC transfusion in patients with SCD, which could pave the way towards predictive strategies.
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Affiliation(s)
- Zohreh Tatari-Calderone
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue, N.W., Washington, DC, United States; Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States.
| | - Heather Gordish-Dressman
- Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Center for Genetic Medicine Research, Children's National Health System, Washington, DC, United States
| | - Ross Fasano
- Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Division of Hematology and Oncology, Children's National Health System, Washington, DC, United States; Division of Laboratory Medicine, Children's National Medical Center, Washington, DC, United States
| | - Michael Riggs
- Department of Biostatistics, Cato Research, Durham, NC, United States
| | - Catherine Fortier
- Laboratoire Jean Dausset and LabEx Transplantex, INSERM UMRS 1160, Monacord and ESH, Hôpital Saint-Louis, Paris, France
| | - Andrew D Campbell
- Division of Pediatric Hematology/Oncology, University of Michigan Health System, Ann Arbor, MI, United States
| | - Dominique Charron
- Laboratoire Jean Dausset and LabEx Transplantex, INSERM UMRS 1160, Monacord and ESH, Hôpital Saint-Louis, Paris, France
| | - Victor R Gordeuk
- Section of Hematology/Oncology, University of Illinois Comprehensive Sickle Cell Center, Chicago, IL, United States
| | - Naomi L C Luban
- Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Division of Hematology and Oncology, Children's National Health System, Washington, DC, United States; Division of Laboratory Medicine, Children's National Medical Center, Washington, DC, United States
| | - Stanislav Vukmanovic
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue, N.W., Washington, DC, United States; Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Ryad Tamouza
- Laboratoire Jean Dausset and LabEx Transplantex, INSERM UMRS 1160, Monacord and ESH, Hôpital Saint-Louis, Paris, France.
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Regulation of the Neurodegenerative Process Associated to Parkinson's Disease by CD4+ T-cells. J Neuroimmune Pharmacol 2015; 10:561-75. [PMID: 26018603 DOI: 10.1007/s11481-015-9618-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 05/19/2015] [Indexed: 01/09/2023]
Abstract
Neuroinflammation constitutes a fundamental process involved in the physiopathology of Parkinson's disease (PD). Microglial cells play a central role in the outcome of neuroinflammation and consequent neurodegeneration of dopaminergic neurons in the substantia nigra. Current evidence indicates that CD4+ T-cells infiltrate the central nervous system (CNS) in PD, where they play a critical role determining the functional phenotype of microglia, thus regulating the progression of the neurodegenerative process. Here, we first analysed the pathogenic role of inflammatory phenotypes and the beneficial role of anti-inflammatory phenotypes of encephalitogenic CD4+ T-cells involved in the physiopathology of PD. Next, we discussed how alterations of neurotransmitter levels observed in the basal ganglia throughout the time course of PD progression could be strongly affecting the behaviour of encephalitogenic CD4+ T-cells and thereby the outcome of the neuroinflammatory process and the consequent neurodegeneration of dopaminergic neurons. Afterward, we integrated the evidence indicating the involvement of an antigen-specific immune response mediated by T-cells and B-cells against CNS-derived self-constituents in PD. Consistent with the involvement of a relevant autoimmune component in PD, we also reviewed the polymorphisms of both, class I and class II major histocompatibility complexes, associated to the risk of PD. Overall, this study gives an overview of how an autoimmune component involved in PD plays a fundamental role in the progression of the neurodegenerative process.
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Abstract
One of the most consistent findings in multiple sclerosis (MS) is that development of MS is linked with carriage of the class II human leucocyte antigen (HLA) molecule HLA-DRB1*15:01; around 60 % of Caucasian MS patients carry this allele compared to 25-30 % of ethnically matched healthy individuals. However, other HLA molecules have also been linked to the development of MS. In this chapter, the association between different HLA types and susceptibility to MS will be reviewed, and other linkages between the carriage of specific HLA molecules and clinical and experimental findings in MS will be considered.
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Affiliation(s)
- Judith M Greer
- The University of Queensland, UQ Centre for Clinical Research, Building 71/918 Riyal Brisbane and Women's Hospital, Brisbane, QLD, 4029, Australia.
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Sun C, Wei L, Luo F, Li Y, Li J, Zhu F, Kang P, Xu R, Xiao L, Liu Z, Xu P. HLA-DRB1 alleles are associated with the susceptibility to sporadic Parkinson's disease in Chinese Han population. PLoS One 2012; 7:e48594. [PMID: 23139797 PMCID: PMC3490875 DOI: 10.1371/journal.pone.0048594] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 09/26/2012] [Indexed: 12/19/2022] Open
Abstract
Immune disorders may play an important role in the pathogenesis of Parkinson's disease (PD). Recently, polymorphisms in the HLA-DR region have been found to be associated with sporadic PD in European ancestry populations. However, polymorphisms in the HLA complex are highly variable with ethnic and geographic origin. To explore the relationships between polymorphisms of the HLA-DR region and sporadic PD in Chinese Han population, we genotyped 567 sporadic PD patients and 746 healthy controls in two independent series for the HLA-DRB1 locus with Polymerase chain reaction-sequence based typing(PCR-SBT). The χ(2) test was used to evaluate the distribution of allele frequencies between the patients and healthy controls. The impact of HLA-DRB1 alleles on PD risk was estimated by unconditional logistic regression. We found a significant higher frequency of HLA-DRB1*0301 in sporadic PD patients than in healthy controls and a positive association, which was independent of onset age, between HLA-DRB1*0301 and PD risk. Conversely, a lower frequency of HLA-DRB1*0406 was found in sporadic PD patients than in healthy controls, with a negative association between HLA-DRB1*0406 and PD risk. Furthermore, a meta-analysis involving 195205 individuals was conducted to summarize the frequencies of these two alleles in populations from various ethnic regions, we found a higher frequency of HLA-DRB1*0301, but a lower frequency of HLA-DRB1*0406 in European ancestry populations than that in Asians, this was consistent with the higher prevalence of sporadic PD in European ancestry populations. Based on these results, we speculate that HLA-DRB1 alleles are associated with the susceptibility to sporadic PD in Chinese Han population, among them HLA-DRB1*0301 is a risk allele while the effect of HLA-DRB1*0406 deserves debate.
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Affiliation(s)
- Congcong Sun
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Lei Wei
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Feifei Luo
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
- Department of Neurology, The Third People’s Hospital of Chengdu, Chengdu, People’s Republic of China
| | - Yi Li
- Department of Neurology, Department of Neurology, Red-Cross Hospital in Guangzhou, Guangzhou, People’s Republic of China
| | - Jiaobiao Li
- Department of Neurology, HeYuan City Hospital, Guangdong, People’s Republic of China
| | - Feiqi Zhu
- Department of Neurology, Yuebei People's Hospital of Shantou University Medical College, Guangdong, People’s Republic of China
| | - Ping Kang
- Department of Neurology, The First People’s Hospital of Shaoguan, Guangdong, People’s Republic of China
| | - Rensi Xu
- Department of Neurology, The First Affiliated Hospital of NanChang University, NanChang, People’s Republic of China
| | - LuLu Xiao
- Department of Tissue Typing Center, Nanfang Hospital of Southern Medical University, Guangzhou, People’s Republic of China
| | - Zhuolin Liu
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Pingyi Xu
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
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Medrano LM, Dema B, López-Larios A, Maluenda C, Bodas A, López-Palacios N, Figueredo MÁ, Fernández-Arquero M, Núñez C. HLA and celiac disease susceptibility: new genetic factors bring open questions about the HLA influence and gene-dosage effects. PLoS One 2012; 7:e48403. [PMID: 23119005 PMCID: PMC3485232 DOI: 10.1371/journal.pone.0048403] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 10/01/2012] [Indexed: 11/18/2022] Open
Abstract
Celiac disease (CD) is a chronic inflammatory disorder triggered after gluten ingestion in genetically susceptible individuals. The major genetic determinants are HLA-DQA1*05 and HLA-DQB1*02, which encode the DQ2 heterodimer. These alleles are commonly inherited in cis with DRB1*03∶01, which is associated with numerous immune-related disorders, in some cases contributing with a different amount of risk depending on the haplotype context. We aimed at investigating those possible differences involving DRB1*03∶01-carrying haplotypes in CD susceptibility. A family (274 trios) and a case-control sample (369 CD cases/461 controls) were analyzed. DRB1*03∶01-carrying individuals were classified according to the haplotype present (ancestral haplotype (AH) 8.1, AH 18.2 or non-conserved haplotype) after genotyping of HLA-DRB1, -DQA1, -DQB1, -B8, TNF -308, TNF -376 and the TNFa and TNFb microsatellites. We observe that the AH 8.1 confers higher risk than the remaining DRB1*03∶01-carrying haplotypes, and this effect only involves individuals possessing a single copy of DQB1*02. CD risk for these individuals is similar to the one conferred by inherit DQA1*05 and DQB1*02 in trans. It seems that an additional CD susceptibility factor is present in the AH 8.1 but not in other DRB1*03∶01-carrying haplotypes. This factor could be shared with individuals possessing DQ2.5 trans, according to the similar risk observed in those two groups of individuals.
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Affiliation(s)
- Luz María Medrano
- UGC de Inmunología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Bárbara Dema
- UGC de Inmunología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Arturo López-Larios
- UGC de Inmunología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Carlos Maluenda
- Servicio de Pediatría, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Andrés Bodas
- Servicio de Pediatría, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Natalia López-Palacios
- Servicio de Aparato Digestivo, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - M. Ángeles Figueredo
- UGC de Inmunología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Miguel Fernández-Arquero
- UGC de Inmunología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Concepción Núñez
- UGC de Inmunología, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
- * E-mail:
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