1
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Nagit RE, Rezus E, Cianga P. Exploring the Pathogenesis of Spondylarthritis beyond HLA-B27: A Descriptive Review. Int J Mol Sci 2024; 25:6081. [PMID: 38892265 PMCID: PMC11172491 DOI: 10.3390/ijms25116081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/15/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Spondylarthritis (SpA) is a chronic inflammatory condition that encompasses damage to the axial or peripheral skeleton, accompanied by specific extra-articular symptoms. Within this group, Ankylosing Spondylitis stands out as the hallmark member. Although the heritability of Ankylosing Spondylitis is estimated to be over 95%, only a portion of the heritability has been explained, with HLA-B27 accounting for 20.1% of it; therefore, ongoing research endeavors are currently concentrated on investigating the potential participation of different entities in the development of the disease. Genome-wide association studies have led to significant advances in our understanding of the genetics of SpA. In this descriptive review, we delve into the pathogenesis of Spondylarthritis beyond HLA-B27. We summarize the latest research on the potential participation of various entities in the development of the disease, including other genetic loci, immune dysregulation, microbiota, and environmental factors. The multifactorial nature of SpA and the complex interplay of genetic, immunological, and environmental factors are being increasingly recognized; therefore, it is of paramount importance to consider a holistic approach to comprehend the pathogenesis of SpA in order to identify novel therapeutic targets.
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Affiliation(s)
- Ruxandra-Elena Nagit
- Immunology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania;
| | - Elena Rezus
- Rheumatology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania;
- Clinical Rehabilitation Hospital, 700661 Iași, Romania
| | - Petru Cianga
- Immunology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania;
- Immunology Laboratory, “St. Spiridon” Clinical Hospital, 700111 Iași, Romania
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2
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Mellati A, Soltani S, Kazemi T, Ahmadzadeh N, Akhtari M, Madreseh E, Jamshidi A, Farhadi E, Mahmoudi M. Determination of IL-23 receptor expression and gene polymorphism (rs1884444) in Iranian patients with ankylosing spondylitis. BMC Rheumatol 2024; 8:14. [PMID: 38605394 PMCID: PMC11007996 DOI: 10.1186/s41927-024-00383-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 03/18/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND Through investigating genetic variations, it has been demonstrated that single nucleotide polymorphisms (SNPs) in the IL-23 receptor (IL23R) gene have a critical role in the pathophysiology of ankylosing spondylitis (AS). Here, we investigated whether the IL23R variant (rs1884444) is associated with AS in the Iranian population. METHODS AND MATERIAL In this research, we analyzed rs1884444 in a group of 425 patients with AS and 400 matched controls. For DNA extraction, the phenol/chloroform technique was utilized. Peripheral blood mononuclear cells (PBMCs) were obtained from the whole blood of 39 patients and 43 healthy controls and total RNA was extracted. Genotyping was performed by amplification-refractory mutation system (ARMS)-PCR method. Afterward, the expression level of IL23R was analyzed by the real-time quantitative (Q)-PCR method. RESULTS We observed no significant association between the distribution of alleles and genotypes of rs1884444 and susceptibility to AS. In addition, the expression level of IL23R did not differ between PBMCs from AS patients compared to the control group (P = 0.167). Furthermore, the relative expression level of IL23R was positively correlated with the BASDAI (P < 0.01) and BASFI (P < 0.05) scores of the patients. CONCLUSION It appears that IL23R polymorphism (rs1884444) and the level of gene expression might not contribute to the susceptibility to AS in the Iranian population. The correlation of IL23R expression with the level of BASDAI and BASFI scores in patients may be due to the role of the IL-23/IL-23R signaling cascade in inflammation and exert a critical role in the development of AS.
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Affiliation(s)
- Atiyeh Mellati
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, PO-Box: 5165683146, Iran
| | - Samaneh Soltani
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, PO-Box: 1476943313, Iran
| | - Tohid Kazemi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, PO-Box: 5165683146, Iran.
| | - Nooshin Ahmadzadeh
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, PO-Box: 1476943313, Iran
| | - Maryam Akhtari
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elham Madreseh
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, PO-Box: 1476943313, Iran
- Research Center For Chronic Inflammatory Diseases, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, PO-Box: 1476943313, Iran
| | - Elham Farhadi
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, PO-Box: 1476943313, Iran
- Research Center For Chronic Inflammatory Diseases, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, PO-Box: 1476943313, Iran.
- Research Center For Chronic Inflammatory Diseases, Tehran University of Medical Sciences, Tehran, Iran.
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3
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Li JX, Wu X, Lee YH, Xu H. West meets East in genetics of ankylosing spondylitis. Int J Rheum Dis 2023; 26:2122-2126. [PMID: 37910030 DOI: 10.1111/1756-185x.14846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 07/07/2023] [Accepted: 07/14/2023] [Indexed: 11/03/2023]
Affiliation(s)
- Jing-Xing Li
- Department of General Medicine, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Graduate Institute of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Xin Wu
- Department of Rheumatology and Immunology, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Yung-Heng Lee
- Department of Senior Services Industry Management, Minghsin University of Science and Technology, Hsinchu, Taiwan
- Department of Recreation and Sport Management, Shu-Te University, Kaohsiung, Taiwan
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
- Department of Orthopedics, Cishan Hospital, Ministry of Health and Welfare, Kaohsiung, Taiwan
| | - Huji Xu
- Department of Rheumatology and Immunology, Changzheng Hospital, Naval Medical University, Shanghai, China
- Peking-Tsinghua Center for Life Sciences, Tsinghua University, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
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4
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Bai Y, Zhao N, Sun H, Yin L, Chen J, Hu N. Associations between ERAP1 polymorphisms and ankylosing spondylitis susceptibility in HLA-B27 positive population: a Meta-analysis and bioinformatics analysis. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2022; 41:407-418. [PMID: 35139766 DOI: 10.1080/15257770.2022.2036344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Human leukocyte antigen (HLA)-B27 confers a key role in ankylosing spondylitis (AS) susceptibility. Endoplasmic reticulum aminopeptidase 1 (ERAP1) polymorphisms are associated with AS susceptibility in common population. In this study we intended to evaluate the possible association between ERAP1 polymorphisms and AS susceptibility in HLA-27 positive population. Data were collected from Pubmed, Embase, and Cochrane databases. The pooled odds ratios and 95% confidence intervals of the minor allele of each locus were calculated to appraise the associations under ERAP1 polymorphisms and AS in HLA-B27 positive population. Bioinformatics analysis was performed to explore the underlying mechanism. Four studies were included in this meta-analysis. There was a significant association between the minor allele of rs2287987 and reducing the risk of developing AS in HLA-B27 positive population. But there was no significant association between the minor allele of rs30187, rs27044, rs10050860 and rs17482078 and AS susceptibility. According to HaploReg, 5 motifs changed for rs2287987 were found. The eQTL analysis demonstrated that rs2287987 may influence ERAP1 expression. Rs2287987 in ERAP1 may have small influence on AS susceptibility in HLA-B27 positive population. Bioinformatics analysis indicated that the altered motifs and the change of EARP1 expression may influence the AS susceptibility.
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Affiliation(s)
- Yanyan Bai
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.,Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Na Zhao
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.,Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hongsheng Sun
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.,Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Liguo Yin
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.,Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Jing Chen
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.,Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Naiwen Hu
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.,Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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5
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Kocaaga A, Kocaaga M. Psoriasis: An Immunogenetic Perspective. Glob Med Genet 2022; 9:82-89. [PMID: 35707771 PMCID: PMC9192173 DOI: 10.1055/s-0042-1743259] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 12/29/2021] [Indexed: 11/09/2022] Open
Abstract
Psoriasis is an erythematous-squamous dermatosis with a polygenic inheritance history. Both environmental and genetic factors play a role in the etiology of the disease. Over the past two decades, numerous linkage analyzes and genome-wide association studies have been conducted to investigate the role of genetic variation in disease pathogenesis and progression. To date, >70 psoriasis susceptibility loci have been identified, including HLA-Cw6, IL12B, IL23R, and LCE3B/3C. Some genetic markers are used in clinical diagnosis, prognosis, treatment, and personalized new drug development that can further explain the pathogenesis of psoriasis. This review summarizes the immunological mechanisms involved in the etiopathogenesis of psoriasis and recent advances in susceptibility genes and highlights new potential targets for therapeutic intervention.
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Affiliation(s)
- Ayca Kocaaga
- Department of Medical Genetics, Eskişehir City Hospital, Eskisehir, Turkey
| | - Mustafa Kocaaga
- Department of Medical Microbiology, Yunus Emre State Hospital, Eskisehir, Turkey
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6
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Zhang H, Jiang HL, Dai SM. No Significant Effects of IL-23 on Initiating and Perpetuating the Axial Spondyloarthritis: The Reasons for the Failure of IL-23 Inhibitors. Front Immunol 2022; 13:818413. [PMID: 35222393 PMCID: PMC8868936 DOI: 10.3389/fimmu.2022.818413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/19/2022] [Indexed: 11/13/2022] Open
Abstract
Axial spondyloarthritis (axSpA) is comprised of ankylosing spondylitis (AS) and non-radiographic axSpA. In recent years, the involvement of the interleukin (IL)-23/IL-17 axis in the pathophysiology of axSpA has been widely proposed. Since IL-23 is an upstream activating cytokine of IL-17, theoretically targeting IL-23 should be effective in axSpA, especially after the success of the treatment with IL-17 blockers in the disorder. Unfortunately, IL-23 blockade did not show meaningful efficacy in clinical trials of AS. In this review, we analyzed the possible causes of the failure of IL-23 blockers in AS: 1) the available data from an animal model is not able to support that IL-23 is involved in a preclinical rather than clinical phase of axSpA; 2) Th17 cells are not principal inflammatory cells in the pathogenesis of axSpA; 3) IL-17 may be produced independently of IL-23 in several immune cell types other than Th17 cells in axSpA; 4) no solid evidence supports IL-23 as a pathogenic factor to induce enthesitis and bone formation. Taken together, IL-23 is not a principal proinflammatory cytokine in the pathogenesis of axSpA.
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Affiliation(s)
| | | | - Sheng-Ming Dai
- Department of Rheumatology & Immunology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
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7
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Bioinformatics Analysis of the Molecular Mechanism and Potential Treatment Target of Ankylosing Spondylitis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:7471291. [PMID: 34335866 PMCID: PMC8321739 DOI: 10.1155/2021/7471291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/05/2021] [Indexed: 02/08/2023]
Abstract
Ankylosing spondylitis (AS) is an autoimmune disease that mainly affects the spinal joints, sacroiliac joints, and adjacent soft tissues. We conducted bioinformatics analysis to explore the molecular mechanism related to AS pathogenesis and uncover novel potential molecular targets for the treatment of AS. The profiles of GSE25101, containing gene expression data extracted from the blood of 16 AS patients and 16 matched controls, were acquired from the Gene Expression Omnibus (GEO) database. The background correction and standardization were carried out utilizing the transcript per million (TPM) method. After analysis of AS patients and the normal groups, we identified 199 differentially expressed genes (DEGs) with upregulation and 121 DEGs with downregulation by the limma R package. The results of the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and Gene Ontology (GO) biological process enrichment analysis revealed that the DEGs with upregulation were mainly associated with spliceosome, ribosome, RNA-catabolic process, electron transport chain, etc. And the DEGs with downregulation primarily participated in T cell-associated pathways and processes. After analysis of the protein-protein interaction (PPI) network, our data revealed that the hub genes, comprising MRPL13, MRPL22, LSM3, COX7A2, COX7C, EP300, PTPRC, and CD4, could be the treatment targets in AS. Our data furnish new hints to uncover the features of AS and explore more promising treatment targets towards AS.
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8
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Wu X, Wang G, Zhang L, Xu H. Genetics of Ankylosing Spondylitis-Focusing on the Ethnic Difference Between East Asia and Europe. Front Genet 2021; 12:671682. [PMID: 34194471 PMCID: PMC8236852 DOI: 10.3389/fgene.2021.671682] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 05/04/2021] [Indexed: 01/07/2023] Open
Abstract
Ankylosing spondylitis (AS) is a common, highly heritable inflammatory arthritis affecting the mainly axial joints in both East Asia and Europe. To date, the pathogenesis of AS is still unknown, although we know that genetics play a vital role in it. The HLA-B27 allele is found in over 85% of AS patients. However, strong evidence suggests that other major histocompatibility complex (MHC) and non-MHC genes are also involved in the pathogenesis. In addition, current data showed that there were significant differences in both genomics and metagenomics among the different ethnic populations. The investigation of the key role of the microbiome in AS pathogenesis also highlighted the host–microbiome genetic interactions. Here, we systematically review current AS genetic research data and further compare genetic differences, especially between East Asian and European groups, which may highlight the challenge in future genetic studies.
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Affiliation(s)
- Xin Wu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Geng Wang
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China.,The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Luding Zhang
- Department of Health Management, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Huji Xu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China.,Peking-Tsinghua Center for Life Sciences, Tsinghua University, Beijing, China.,School of Clinical Medicine, Tsinghua University, Beijing, China
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9
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Ebrazeh M, Ezzatifar F, Torkamandi S, Mohammadi FS, Salimifard S, Gowhari Shabgah A, Hemmatzadeh M, Aslani S, Babaie F, Jadidi-Niaragh F, Gholizadeh Navashenaq J, Mohammadi H. Association of the genetic variants in the endoplasmic reticulum aminopeptidase 2 gene with ankylosing spondylitis susceptibility. Int J Rheum Dis 2021; 24:567-581. [PMID: 33550689 DOI: 10.1111/1756-185x.14079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/10/2021] [Accepted: 01/13/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Genetic polymorphisms in the endoplasmic reticulum aminopeptidase gene ERAP2 has been attributed with the etiopathogenesis of ankylosing spondylitis (AS). Here we assessed the association of ERAP2 gene single nucleotide polymorphisms (SNPs) with AS predisposition in Iranian patients and determined their effect on the inflammatory state of the patients. METHODS For genotyping of rs2548538, rs2287988, and rs17408150 SNPs using a real-time allelic discrimination approach, DNA was extracted from the whole blood of 250 AS patients and 250 healthy individuals. RNA of the peripheral blood mononuclear cells was separated, cDNA was synthesized, and transcriptional levels of cytokines, including interleukin (IL)-17A, IL-23, IL-10, and transforming growth factor-β, were measured. Enzyme-linked immunosorbent assay was used to measure the serum concentration on the cytokines. RESULTS Three ERAP2 gene SNPs were not associated significantly with AS risk. Nonetheless, rs2287988 and rs17408150 SNPs showed statistically significant association with susceptibility to the disease in those AS patients who were positive for human leukocyte antigen (HLA)-B27. Transcriptional level and serum concentration of IL-17A and IL-23 were higher, but those of IL-10 were lower in both AS patients and the HLA-B27-positive patient group relative to the control group. Nevertheless, ERAP2 gene SNPs in the HLA-B27-positive AS patients did not affect the transcription level and serum concentration of cytokines. CONCLUSIONS ERAP2 gene rs2287988 and rs17408150 SNPs are associated with susceptibility to AS, but they are probably not determining the levels of IL-17A, IL-23, and IL-10 in this disease.
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Affiliation(s)
- Mehrdad Ebrazeh
- Department of Biology, Bonab Branch, Islamic Azad University, Bonab, Iran
| | - Fatemeh Ezzatifar
- Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shahram Torkamandi
- Faculty of Medicine, Department of Medical Genetics and Immunology, Urmia University of Medical Sciences, Urmia, Iran
| | - Fatemeh Sadat Mohammadi
- Immunology Research Center, Inflammation and Inflammatory Diseases Division, Medical School, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sevda Salimifard
- Faculty of Medicine, Department of Hematology and Blood Transfusion, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Maryam Hemmatzadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Aslani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Farhad Babaie
- Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Farhad Jadidi-Niaragh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Medicine, Department of Immunology, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Hamed Mohammadi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.,Department of Immunology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
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10
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Brown MA, Xu H, Li Z. Genetics and the axial spondyloarthritis spectrum. Rheumatology (Oxford) 2021; 59:iv58-iv66. [PMID: 33053195 PMCID: PMC7566537 DOI: 10.1093/rheumatology/keaa464] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/10/2020] [Indexed: 02/06/2023] Open
Abstract
The axial SpAs (axSpAs) are clearly clinically a heterogeneous set of diseases with markedly varying extra-articular features. These diseases are all highly heritable and have overlapping but differing genetic origins. Shared features include association with HLA class I alleles and genes of the IL-23 pathway, among other things. Significant differences do exist however, both in the genetic loci involved and at specific loci in the individual genetic variants associated with each disease. These similarities and differences are of great interest in regards to disease pathogenesis and treatment development, although individually they are too small in effect to be of prognostic or diagnostic value. Polygenic risk scores, which capture a high proportion of the genetic variation between disorders, have been shown to have clinically useful discriminatory capacity in axSpA. This suggests they have the potential to enable improved disease classification, incorporating basic pathogenic features such as genomics, and ultimately benefitting clinical care. The aim of this article is to review the genetic characteristics of the spectrum of axSpAs and to discuss how this influences our understanding of the disease pathogenesis and the clinical implications of this understanding.
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Affiliation(s)
- Matthew A Brown
- Guy's & St Thomas' NHS Foundation Trust and King's College London NIHR Biomedical Research Centre, London, UK
| | - Huji Xu
- Department of Rheumatology and Immunology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Peking-Tsinghua Center for Life Sciences, Tsinghua University, Beijing, China.,Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Zhixiu Li
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology, Translational Research Institute, Brisbane, QLD, Australia
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11
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Sharip A, Kunz J. Understanding the Pathogenesis of Spondyloarthritis. Biomolecules 2020; 10:biom10101461. [PMID: 33092023 PMCID: PMC7588965 DOI: 10.3390/biom10101461] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 02/07/2023] Open
Abstract
Spondyloarthritis comprises a group of inflammatory diseases of the joints and spine, with various clinical manifestations. The group includes ankylosing spondylitis, reactive arthritis, psoriatic arthritis, arthritis associated with inflammatory bowel disease, and undifferentiated spondyloarthritis. The exact etiology and pathogenesis of spondyloarthritis are still unknown, but five hypotheses explaining the pathogenesis exist. These hypotheses suggest that spondyloarthritis is caused by arthritogenic peptides, an unfolded protein response, HLA-B*27 homodimer formation, malfunctioning endoplasmic reticulum aminopeptidases, and, last but not least, gut inflammation and dysbiosis. Here we discuss the five hypotheses and the evidence supporting each. In all of these hypotheses, HLA-B*27 plays a central role. It is likely that a combination of these hypotheses, with HLA-B*27 taking center stage, will eventually explain the development of spondyloarthritis in predisposed individuals.
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MESH Headings
- Arthritis, Psoriatic/genetics
- Arthritis, Psoriatic/immunology
- Arthritis, Psoriatic/metabolism
- Arthritis, Psoriatic/pathology
- Arthritis, Reactive/genetics
- Arthritis, Reactive/immunology
- Arthritis, Reactive/metabolism
- Arthritis, Reactive/pathology
- HLA-B27 Antigen/genetics
- HLA-B27 Antigen/immunology
- Humans
- Inflammation/genetics
- Inflammation/immunology
- Inflammation/metabolism
- Inflammation/pathology
- Inflammatory Bowel Diseases/genetics
- Inflammatory Bowel Diseases/immunology
- Inflammatory Bowel Diseases/metabolism
- Inflammatory Bowel Diseases/pathology
- Joints/immunology
- Joints/pathology
- Spine/immunology
- Spine/pathology
- Spondylarthritis/genetics
- Spondylarthritis/immunology
- Spondylarthritis/metabolism
- Spondylarthritis/pathology
- Spondylitis, Ankylosing/genetics
- Spondylitis, Ankylosing/immunology
- Spondylitis, Ankylosing/metabolism
- Spondylitis, Ankylosing/pathology
- Unfolded Protein Response/genetics
- Unfolded Protein Response/immunology
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12
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Revisiting the gut-joint axis: links between gut inflammation and spondyloarthritis. Nat Rev Rheumatol 2020; 16:415-433. [PMID: 32661321 DOI: 10.1038/s41584-020-0454-9] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/05/2020] [Indexed: 02/07/2023]
Abstract
Gut inflammation is strongly associated with spondyloarthritis (SpA), as exemplified by the high prevalence of inflammatory bowel disease (IBD) and the even higher occurrence of subclinical gut inflammation in patients with SpA. The gut-joint axis of inflammation in SpA is further reinforced by similarities in immunopathogenesis at both anatomical sites and by the clinical success of therapies blocking TNF and IL-23 in IBD and in some forms of SpA. Many genetic risk factors are shared between SpA and IBD, and changes in the composition of gut microbiota are seen in both diseases. Current dogma is that inflammation in SpA initiates in the gut and leads to joint inflammation; however, although conceptually attractive, some research does not support this causal relationship. For example, therapies targeting IL-17A are efficacious in the joint but not the gut, and interfering with gut trafficking by targeting molecules such as α4β7 in IBD can lead to onset or flares of SpA. Several important knowledge gaps remain that must be addressed in future studies. Determining the true nature of the gut-joint axis has real-world implications for the treatment of patients with co-incident IBD and SpA and for the repurposing of therapeutics from one disease to the other.
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13
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Ebrazeh M, Nojavan M, Abdi-Shayan S, Salimifard S, Dolatshahi E, Aslani S, Hemmatzadeh M, Babaie F, Ghanavatinejad A, Azizi G, Jadidi-Niaragh F, Zamani N, Mohammadi H. Endoplasmic reticulum aminopeptidase 2 gene single nucleotide polymorphisms in association with susceptibility to ankylosing spondylitis in an Iranian population. Immunol Lett 2020; 223:97-105. [PMID: 32360304 DOI: 10.1016/j.imlet.2020.04.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/25/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Ankylosing spondylitis (AS) is a chronic autoimmune disease, in which genetic polymorphisms are critically important in establishing inflammatory state. Endoplasmic reticulum aminopeptidase (ERAP) 2 gene has been implied to be involved in AS etiopathogenesis. The current study evaluated the association of ERAP2 gene single nucleotide polymorphisms (SNPs) with susceptibility to AS in an Iranian population. METHODS Two hundred and forty AS patients and 240 healthy individuals were recruited. DNA extraction was performed from whole blood samples and RNA content was isolated from peripheral blood mononuclear cells (PBMCs). Real-time allelic discrimination approach was exerted to genotype all subjects for rs2910686, rs2248374, and rs2549782 SNPs. After cDNA synthesis, mRNA expression of cytokines was determined. Enzyme-linked immunosorbent assay (ELISA) was exerted to evaluate the cytokine levels in serum of participants. RESULTS None of the SNPs were associated with AS risk in the whole population. However, allele and heterozygote genotype of rs2910686 SNP were associated significantly with higher risk of AS in Human leukocyte antigen (HLA)-B27 positive group. mRNA expression and serum concentrations of interleukin (IL)-17A, IL-23, interferon (IFN)-γ, and tumor necrosis factor (TNF)-α was increased in AS patients compared with controls. Nonetheless, mRNA expression and serum levels of cytokines was not significantly different among HLA-B27 positive AS patients with different three genotypes for rs2910686 SNP. CONCLUSIONS AlthoughERAP2 gene rs2910686 polymorphism was significantly associated with increased risk of AS susceptibility, it might not be involved in regulation of the inflammatory cytokines during AS pathogenesis.
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Affiliation(s)
- Mehrdad Ebrazeh
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mohammad Nojavan
- Department of Laboratory Medicine, Alfa Medical Laboratory, Urmia, Iran
| | - Shiva Abdi-Shayan
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sevda Salimifard
- Department of Hematology and Blood Transfusion, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Elahe Dolatshahi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Saeed Aslani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Hemmatzadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farhad Babaie
- Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Gholamreza Azizi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Farhad Jadidi-Niaragh
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Neda Zamani
- Department of Cell and Molecular Biology, Marand Branch, Islamic Azad University, Marand, Iran
| | - Hamed Mohammadi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran; Department of Immunology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
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Abstract
PURPOSE OF REVIEW This article aims to review recent literature linking epithelial barrier inflammation and arthritis in spondyloarthritis (SpA), with a critical view on how they are bound by genetic, immunological and environmental ties. RECENT FINDINGS The epithelia-joint axis has become an intense area of both basic and clinical SpA research. The penultimate goal is to understand the immunopathologic links between epithelial inflammation and arthritis in SpA. Inflammatory bowel disease (IBD) and psoriasis (PsO) have strong links to SpA at several levels. Clinically, there is a strong association of IBD, PsO and SpA. Genetically, there are many shared risk factors; however, there are also distinct differences in the genetics of the respective diseases. Immunologically, type 3 immunity, especially interleukin (IL)-17 and IL-23 dysregulation, has been shown to play a central role in IBD, PsO and SpA. Environmentally, a microbial dysbiosis has been noted in each of these diseases, but whether the microbial signature is similar between diseases is not clear, nor is the effect of dysbiosis on the immune response known. SUMMARY It will be crucial to determine whether the relationship between epithelia inflammation and SpA is truly causal for both the understanding of pathogenesis and for future treatment strategies.
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Zhu Y, Jiang H, Chen Z, Lu B, Li J, Shen X. Genetic association between IL23R rs11209026 and rs10889677 polymorphisms and risk of Crohn’s disease and ulcerative colitis: evidence from 41 studies. Inflamm Res 2019; 69:87-103. [DOI: 10.1007/s00011-019-01296-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/11/2019] [Accepted: 10/31/2019] [Indexed: 01/30/2023] Open
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16
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Associations between interleukin-23R polymorphisms and ankylosing spondylitis susceptibility: an updated meta-analysis. Z Rheumatol 2019; 78:272-280. [PMID: 29691688 DOI: 10.1007/s00393-018-0472-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE The aim of this study was to determine whether interleukin-23R (IL-23R) polymorphisms are associated with susceptibility to ankylosing spondylitis (AS). METHODS Meta-analyses were conducted to determine the associations between IL-23R polymorphisms and AS susceptibility in Europeans, Asians, and all subjects combined. RESULTS A total of 17 studies (21 separate comparisons) were included in this meta-analysis. The meta-analysis revealed a significant association between AS and the two alleles of the rs11209032 polymorphism in all study subjects (odds ratio [OR] = 1.160, 95% confidence interval [CI] = 1.091-1.204, P < 0.001). Stratification by ethnicity identified a significant association between this polymorphism and AS in Europeans (OR = 1.234, 95% CI = 1.159-1.313, P < 0.001), but not in Asians (OR = 1.003, 95% CI = 0.920-1.219, P = 0.942). Meta-analyses of the rs1004819, rs10489629, rs1343151, rs1495965, rs7517847, and rs11465804 polymorphisms showed the same pattern as shown for rs11209032. The meta-analysis also revealed a significant association between the two alleles of the rs2201841 and rs11209026 polymorphisms and the risk of developing AS in Europeans, but not in Asians. Interestingly, the rs10889677 polymorphism was not found to be associated with AS susceptibility in either Europeans or Asians. CONCLUSIONS This meta-analysis showed that several IL-23R polymorphisms are associated with the development of AS in Europeans.
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17
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Zhu W, He X, Cheng K, Zhang L, Chen D, Wang X, Qiu G, Cao X, Weng X. Ankylosing spondylitis: etiology, pathogenesis, and treatments. Bone Res 2019; 7:22. [PMID: 31666997 PMCID: PMC6804882 DOI: 10.1038/s41413-019-0057-8] [Citation(s) in RCA: 206] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 05/20/2019] [Accepted: 05/23/2019] [Indexed: 02/06/2023] Open
Abstract
Ankylosing spondylitis (AS), a common type of spondyloarthropathy, is a chronic inflammatory autoimmune disease that mainly affects spine joints, causing severe, chronic pain; additionally, in more advanced cases, it can cause spine fusion. Significant progress in its pathophysiology and treatment has been achieved in the last decade. Immune cells and innate cytokines have been suggested to be crucial in the pathogenesis of AS, especially human leukocyte antigen (HLA)‑B27 and the interleukin‑23/17 axis. However, the pathogenesis of AS remains unclear. The current study reviewed the etiology and pathogenesis of AS, including genome-wide association studies and cytokine pathways. This study also summarized the current pharmaceutical and surgical treatment with a discussion of future potential therapies.
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Affiliation(s)
- Wei Zhu
- 1Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 100730 Beijing, China
| | - Xuxia He
- 2Department of Clinical Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, 100730 Beijing, China
| | - Kaiyuan Cheng
- 1Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 100730 Beijing, China
| | - Linjie Zhang
- 1Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 100730 Beijing, China
| | - Di Chen
- 3Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612 USA
| | - Xiao Wang
- 4Department of Orthopedic Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD USA
| | - Guixing Qiu
- 1Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 100730 Beijing, China
| | - Xu Cao
- 4Department of Orthopedic Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD USA
| | - Xisheng Weng
- 1Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 100730 Beijing, China
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18
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ERAP1-ERAP2 haplotypes are associated with ankylosing spondylitis in Polish patients. Hum Immunol 2019; 80:339-343. [DOI: 10.1016/j.humimm.2019.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/07/2019] [Accepted: 02/07/2019] [Indexed: 01/03/2023]
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19
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Ankylosing spondylitis: analysis of gene-gene interactions between IL-12β, JAK2, and STAT3 in Han Chinese and Algerian cohorts. Cent Eur J Immunol 2019; 44:65-74. [PMID: 31114439 PMCID: PMC6526582 DOI: 10.5114/ceji.2019.84019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 12/07/2017] [Indexed: 01/20/2023] Open
Abstract
Introduction Association studies have recently identified the importance of new genetic variants for ankylosing spondylitis (AS) in several populations. Our aim was to confirm associations of variants within genes involved in the IL-23 signalling pathway with AS in two ethnically different populations: Han Chinese and Algerian. Material and methods Two case-control studies were performed in separate cohorts: Han Chinese (430 AS patients and 580 controls) and Algerian (130 AS patients and 120 controls). We genotyped four single nucleotide polymorphisms (SNPs): rs3212227 (or +1188A/C) and rs6887695 in IL-12β, rs7857730 in JAK2, and rs2293152 in STAT3, using TaqMan SNP genotyping assays. Gene-gene interaction analyses were also tested by logistic regression and multifactor dimensionality reduction (MDR). Results Statistical analysis revealed a difference in allele frequencies between AS patients and controls for rs321222 in the IL-12β gene in both the Han Chinese (p = 0.005) and the Algerian (p = 0.031) cohorts. Two other associations were reported with JAK2 rs7857730 in the Han Chinese (allelic p = 0.014) cohort and STAT3 rs2293152 in the Algerian (allelic p = 0.006) cohort. Moreover, logistic regression analyses showed a number of significant combinations within the two populations, and the gene-gene epistasis effects in AS were also confirmed by MDR. Conclusions Our findings have confirmed the association between genes in IL-23 signalling pathway and the pathogenesis of AS. This association was particularly novel in both Han Chinese and Algerian populations with the 3’ untranslated region (3’UTR) variant rs3212227 (or +1188A/C) of IL-12β. The gene-gene interaction models in this pathway may thus increase the risk of AS in these populations.
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20
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Yao Y, Liu N, Zhou Z, Shi L. Influence of ERAP1 and ERAP2 gene polymorphisms on disease susceptibility in different populations. Hum Immunol 2019; 80:325-334. [PMID: 30797823 DOI: 10.1016/j.humimm.2019.02.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/14/2019] [Accepted: 02/21/2019] [Indexed: 02/07/2023]
Abstract
The endoplasmic reticulum aminopeptidases (ERAPs), ERAP1 and ERAP2, makes a role in shaping the HLA class I peptidome by trimming peptides to the optimal size in MHC-class I-mediated antigen presentation and educating the immune system to differentiate between self-derived and foreign antigens. Association studies have shown that genetic variations in ERAP1 and ERAP2 genes increase susceptibility to autoimmune diseases, infectious diseases, and cancers. Both ERAP1 and ERAP2 genes exhibit diverse polymorphisms in different populations, which may influence their susceptibly to the aforementioned diseases. In this article, we review the distribution of ERAP1 and ERAP2 gene polymorphisms in various populations; discuss the risk or protective influence of these gene polymorphisms in autoimmune diseases, infectious diseases, and cancers; and highlight how ERAP genetic variations can influence disease associations.
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Affiliation(s)
- Yufeng Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China; Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Nannan Liu
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China
| | - Ziyun Zhou
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China
| | - Li Shi
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China; Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China.
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21
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Liu J, Pu W, Li Y, Ma Y, Zhu Q, Wan W, Yang C, Wang X, Chen X, Zhou X, Reveille JD, Jin L, Zou H, Wang J. Genetic association of non-MHC region with ankylosing spondylitis in a Chinese population. Ann Rheum Dis 2018; 78:852-853. [PMID: 30552171 PMCID: PMC6579548 DOI: 10.1136/annrheumdis-2018-214625] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/08/2018] [Accepted: 11/12/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Jing Liu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China
| | - Weilin Pu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China
| | - Yuan Li
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China
| | - Yanyun Ma
- Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory of Contemporary Anthropology, Department of Anthropology and Human Genetics, School of Life Sciences, Fudan University, Shanghai, China
| | - Qi Zhu
- Institute of Arthritis Research, Shanghai Academy of Chinese Medical Sciences, Guanghua Integrative Medicine Hospital, Shanghai, China
| | - Wei Wan
- Division of Rheumatology and Immunology, Changhai Hospital, Shanghai, China
| | - Chengde Yang
- Division of Rheumatology, Ruijin Hosptial, Shanghai Jiaotong University Schools of Medicine, Shanghai, China
| | - Xiaofeng Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China
| | - Xingdong Chen
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China.,Fudan-Taizhou Institute of Health Sciences, Taizhou, China
| | - Xiaodong Zhou
- Division of Rheumatology and Clinical Immunogenetics, The University of Texas-McGovern Medical School, Houston, TX, United States
| | - John D Reveille
- Division of Rheumatology and Clinical Immunogenetics, The University of Texas-McGovern Medical School, Houston, TX, United States
| | - Li Jin
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China
| | - Hejian Zou
- Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China .,Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
| | - Jiucun Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China .,Division of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
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22
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Association analysis of ERAP1 gene single nucleotide polymorphism in susceptibility to ankylosing spondylitis in Iranian population. Immunol Lett 2018; 201:52-58. [PMID: 30412714 DOI: 10.1016/j.imlet.2018.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/26/2018] [Accepted: 11/05/2018] [Indexed: 12/18/2022]
Abstract
Background Ankylosing spondylitis (AS) is a debilitating spondyloarthropathy that has been associated with variation in several genes. Human leukocyte antigen (HLA)-B27 constructs an impaired structure, culminating in recognition and activation of immune system. Impaired function of Endoplasmic reticulum aminopeptidase (ERAP) 1, which primes peptides to be loaded in HLA molecules, has strongly been associated with AS proneness. Here, we intended to investigate the possible association of ERAP1 gene single nucleotide polymorphisms (SNPs) with AS susceptibility in Iranian patients. Methods Two-hundred and twenty AS patients and 220 healthy controls were enrolled in this study. DNA was extracted from blood samples and then was genotyped for rs27044, rs17482078, and rs10050860 polymorphism by SSP-PCR approach. Results It was seen that G allele and GG genotype of rs27044 SNP significantly increased the risk of AS that was even stronger in HLA-B27 positive patients. Moreover, the T allele and TT genotype of rs10050860 polymorphism were associated with increased risk of the disease in both all and HLA-B27 positive AS group. Two haplotypes were associated with the risk of AS and there was linkage disequilibrium between SNPs. Two SNPs were associated with clinicopathological manifestations of AS subjects. Conclusions This association study replicated the role ofERAP1 gene polymorphisms with the risk of AS in an Iranian population.
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23
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Jiang Y, Ren Y, Zhou D, Xu Y. Associations between ERAP1 polymorphisms and susceptibility to ankylosing spondylitis: A meta-analysis of East Asian Population. Medicine (Baltimore) 2018; 97:e13263. [PMID: 30461632 PMCID: PMC6393156 DOI: 10.1097/md.0000000000013263] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The genetic factor is importantly enrolled in the pathogenesis of ankylosing spondylitis (AS) and haplotype leukocyte antigen (HLA)-B27 is the most well-known. However, only 1% to 5% of B27-positive individuals will develop AS, and it confers only 20% to 30% of the overall genetic risks, indicating more genes other than HLA-B27 may play important roles in AS pathologies. The present study aims to investigate whether the polymorphisms of endoplasmic reticulum aminopeptidase 1 (ERAP1) is associated with increased risk of AS susceptibility. METHODS The Cochrane library, Pubmed, and Embase databases were carefully searched for potential researches published before May 30, 2018. The title, abstract, and full text were assessed to determine whether the paper was suitable for inclusion. The pooled odds ratios (ORs) with 95% confidence intervals (CIs) were presented to assess the associations between ERAP1 polymorphisms and AS susceptibility. RESULTS The study finally enrolled 10 papers, 4 matched single nucleotide polymorphisms (SNPs) of ERAP1 (rs27044, rs27434, rs30187, and rs27037), and a total of 30552 patients (12492 with AS and 18060 for control). No significant difference was found between the AS susceptibility and polymorphisms of rs27044 and rs27434. However, there was a significant association between ERAP1 polymorphisms rs30187 and rs27037 (T vs C, OR, 1.322, 95% CI = 1.240-10410, P <.05; T vs G, OR, 1.247, 95% CI = 1.149-1.353; P <.05; respectively) and AS susceptibility. CONCLUSION There was a significant association between ERAP1 polymorphisms (rs30187 and rs27037) and increased risk of AS susceptibility.
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Affiliation(s)
- Yuqing Jiang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Soochow
- Department of Orthopaedics, Changzhou No.2 people's Hospital
| | - Yi Ren
- Department of Neurology, The Third Affiliated Hospital of Soochow University, Changzhou
| | - Dong Zhou
- Department of Orthopaedics, Changzhou No.2 people's Hospital
| | - Youjia Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Soochow
- Osteoprosis institute of Soochow University, Soochow, China
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24
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Brown MA, Wordsworth BP. Genetics in ankylosing spondylitis - Current state of the art and translation into clinical outcomes. Best Pract Res Clin Rheumatol 2018; 31:763-776. [PMID: 30509439 DOI: 10.1016/j.berh.2018.09.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/10/2018] [Accepted: 08/22/2018] [Indexed: 12/20/2022]
Abstract
Ankylosing spondylitis (AS) is the prototypic form of axial spondyloarthritis (axSpA). It is highly heritable, with studies conducted in twins and in unrelated cases and controls showing that the heritability for AS is much higher than those for inflammatory bowel disease or rheumatoid arthritis. To date, 116 loci have been identified, contributing to 28% of the genetic variation in the disease. These loci provide important clues into pathogenic pathways in the disease that have led to therapeutic advances such as the repositioning of IL-17 inhibitors in the disease. Much more research is currently required to determine the functional mechanisms by which the genetic associations operate, from which it is likely that novel therapeutic approaches will be developed.
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Affiliation(s)
- Matthew A Brown
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Translational Research Institute, Queensland University of Technology, Brisbane, Australia.
| | - B Paul Wordsworth
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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25
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Vanaki N, Aslani S, Jamshidi A, Mahmoudi M. Role of innate immune system in the pathogenesis of ankylosing spondylitis. Biomed Pharmacother 2018; 105:130-143. [DOI: 10.1016/j.biopha.2018.05.097] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/19/2018] [Accepted: 05/20/2018] [Indexed: 12/11/2022] Open
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26
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Xia Y, Liang Y, Guo S, Yu JG, Tang MS, Xu PH, Qin FD, Wang GP. Association between cytokine gene polymorphisms and ankylosing spondylitis susceptibility: a systematic review and meta-analysis. Postgrad Med J 2018; 94:508-516. [PMID: 30322951 DOI: 10.1136/postgradmedj-2018-135665] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 09/11/2018] [Accepted: 09/15/2018] [Indexed: 01/05/2023]
Abstract
PURPOSE OF THE STUDY The aim of this study was to perform a meta-analysis to derive precise estimation of the association of interleukin-23 receptor (IL-23R), IL-1 receptor 2 (IL-1R2), IL-12 beta (IL-12B), IL-10 and tumour necrosis factor (TNF)-α polymorphisms with ankylosing spondylitis (AS) susceptibility. STUDY DESIGN A systematic literature search was conducted to identify the relevant studies. Pooled OR with 95% CI was calculated to assess the strength of the association in a fixed or random-effects model. RESULTS A total of 13 917 cases and 19 849 controls in 43 eligible studies were included in the meta-analysis. Seventeen single-nucleotide polymorphisms (SNPs) in the abovementioned five cytokine genes were evaluated. The results indicate that the nine SNPs (rs11209026, rs1004819, rs10489629, rs11465804, rs1343151, rs11209032, rs1495965, rs7517847, rs2201841) of IL-23R are associated with AS susceptibility in all study subjects in the allelic model. Moreover, stratification by ethnicity identified a significant association between seven SNPs of IL-23R and AS susceptibility in Europeans and Americans, but not in Asians. In addition, the IL-10-819 C/T and TNF-α-857 C/T polymorphisms also confer susceptibility to AS, especially in Asian population. CONCLUSION The results suggested that the genetic susceptibility for AS is associated with the nine SNPs of IL-23R in overall population. In the subgroup analysis, significant associations were shown in European and American population, but not in Asian population. Our results also suggest that IL-10-819 C/T and TNF-α-857 C/T polymorphism might be associated with AS risk, especially in Asian population.
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Affiliation(s)
- Yi Xia
- Department of Humanities and management, Wannan Medical College, Wuhu, China
| | - Yan Liang
- Department of Nephrology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shi Guo
- Department of Humanities and management, Wannan Medical College, Wuhu, China
| | - Jie-Gen Yu
- School of Basic Medicine, Wannan Medical College, Wuhu, China
| | - Meng-Sha Tang
- Department of Humanities and management, Wannan Medical College, Wuhu, China
| | - Peng-Hui Xu
- Department of Humanities and management, Wannan Medical College, Wuhu, China
| | - Fen-Dui Qin
- Department of Humanities and management, Wannan Medical College, Wuhu, China
| | - Guo-Pin Wang
- Department of Humanities and management, Wannan Medical College, Wuhu, China
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27
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Zhong L, Wang W, Song H. Complex role of IL-23R polymorphisms on ankylosing spondylitis: a meta-analysis. Expert Rev Clin Immunol 2018; 14:635-643. [PMID: 29944013 DOI: 10.1080/1744666x.2018.1491308] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Linqing Zhong
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Wang
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongmei Song
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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28
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Dashti N, Mahmoudi M, Aslani S, Jamshidi A. HLA-B*27 subtypes and their implications in the pathogenesis of ankylosing spondylitis. Gene 2018; 670:15-21. [PMID: 29803000 DOI: 10.1016/j.gene.2018.05.092] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/14/2018] [Accepted: 05/23/2018] [Indexed: 12/25/2022]
Abstract
Ankylosing spondylitis (AS) is a highly heritable kind of arthritis that affects the vertebral column. AS risk has been associated strongly with Human leukocyte antigen (HLA)-B*27. In fact, some HLA-B*27 subtypes have been associated with the increased disease risk, although some specific subtypes have not shown such associations. It is supposed that HLA-B*27 plays a major role in the etiopathogenesis of the disease. However, the difference in pathogenic outcomes of HLA-B*27 certain subtypes needs to be clarified. The purpose of this review article is to overview on the detailed implications of the HLA-B*27 subtypes in the etiopathogenesis of AS. Moreover, the role of ERAP1 in AS and its epistasis with HLA-B*27 have been reviewed.
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Affiliation(s)
- Navid Dashti
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Immunology, School of Medicine, TehranUniversity of Medical Sciences, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Saeed Aslani
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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Akassou A, Bakri Y. Does HLA-B27 Status Influence Ankylosing Spondylitis Phenotype? CLINICAL MEDICINE INSIGHTS-ARTHRITIS AND MUSCULOSKELETAL DISORDERS 2018; 11:1179544117751627. [PMID: 29343996 PMCID: PMC5764146 DOI: 10.1177/1179544117751627] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 12/07/2017] [Indexed: 12/16/2022]
Abstract
The association of HLA-B27 with ankylosing spondylitis (AS) remains as one of the intriguing models that could exist between a molecule and human disease in medicine. Although it was reported in 1973, its contribution to AS and related spondyloarthritis continues to be a major challenge for scientific community. It is important to understand its etiopathogenic mechanism and its functions in these diseases. Although the diagnostic and prognostic roles of HLA-B27 in AS are still debated, there is an increasing interest for HLA-B27–based effects especially in HLA-B27(+) patients with AS. This review will focus in the examination of published reports regarding the influence of HLA-B27 status on the demographic and clinical features in AS, with specific interest to its role on AS severity.
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Affiliation(s)
- Amal Akassou
- Laboratory of Biochemistry and Immunology, Faculty of Sciences, Mohammed V University Agdal, Rabat, Morocco
| | - Youssef Bakri
- Laboratory of Biochemistry and Immunology, Faculty of Sciences, Mohammed V University Agdal, Rabat, Morocco
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30
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Li Z, Brown MA. Progress of genome-wide association studies of ankylosing spondylitis. Clin Transl Immunology 2017; 6:e163. [PMID: 29333268 PMCID: PMC5750450 DOI: 10.1038/cti.2017.49] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 09/30/2017] [Accepted: 09/30/2017] [Indexed: 02/06/2023] Open
Abstract
Ankylosing spondylitis (AS) is an immune-mediated arthritis which primarily affects the spine and sacroiliac joints. Significant progress has been made in discovery of genetic associations with AS by genome-wide association studies (GWAS) over past decade. These findings have uncovered novel pathways involved pathogenesis of the disease and have led to introduction of novel therapeutic treatments for AS. In this Review, we discuss the genetic variations associated with AS identified by GWAS, the major pathways revealed by these AS-associated variations and critical cell types involved in AS development.
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Affiliation(s)
- Zhixiu Li
- Translational Genomics Group, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology at Translational Research Institute, Brisbane, Queensland, Australia
| | - Matthew A Brown
- Translational Genomics Group, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology at Translational Research Institute, Brisbane, Queensland, Australia
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31
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Wang X, Ma J, Ma J, Wen Y, Meng L, Yang H, Zhang R, Hao D. Bioinformatics analysis of genetic variants of endoplasmic reticulum aminopeptidase 1 in ankylosing spondylitis. Mol Med Rep 2017; 16:6532-6543. [PMID: 28901420 PMCID: PMC5865822 DOI: 10.3892/mmr.2017.7417] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 05/04/2017] [Indexed: 12/01/2022] Open
Abstract
According to the results of the first genome-wide association study of ankylosing spondylitis (AS), endoplasmic reticulum aminopeptidase 1 (ERAP1) may serve an important role. However, a number of case-control studies have not been able to replicate this result using the same genetic markers. In the present study, the role of common genetic variants of ERAP1 in AS was investigated using two-stage bioinformatics analysis. In the first stage, a classical meta-analysis was performed to assess AS susceptibility markers in ERAP1 using data from available published case-control association studies. The summary odds ratios for 10 single nucleotide polymorphisms (SNPs) were observed to be statistically significant in different studies. In the second stage, the functional effects of these genetic ERAP1 variants were investigated using prediction tools and structural analyses. The K528R (rs30187) substitution SNP in ERAP1 was termed as likely damaging by PolyPhen-2 software, was observed to be located close to the entrance of the substrate pocket, and was predicted to contribute to reduced ERAP1 aminopeptidase activity. In addition, the R725Q (rs17482078) SNP, which was an additional potentially damaging substitution, was suggested to decrease the enzymatic activity of ERAP1, as this substitution may lead to the loss of two hydrogen bonds between R725 and D766 and affect the stability of the C-terminus of ERAP1. In conclusion, the results of the two-stage bioinformatics analysis supported the hypothesis that ERAP1 may present an important susceptibility gene for AS. In addition, the results revealed that two functional SNPs (rs30187 and rs17482078) demonstrated the potential to decrease the enzymatic activity of ERAP1 by affecting its protein structure. Further protein structure-guided studies of the specificity and activity of these ERAP1 variants are therefore warranted.
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Affiliation(s)
- Xiaoli Wang
- Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, P.R. China
| | - Jie Ma
- Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, P.R. China
| | - Jianbing Ma
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P.R. China
| | - Yurong Wen
- Center for Translational Medicine, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P.R. China
| | - Liesu Meng
- Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, P.R. China
| | - Hao Yang
- Translational Medicine Center, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P.R. China
| | - Rui Zhang
- Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, P.R. China
| | - Dingjun Hao
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P.R. China
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32
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Elevated TRAF4 expression impaired LPS-induced autophagy in mesenchymal stem cells from ankylosing spondylitis patients. Exp Mol Med 2017; 49:e343. [PMID: 28604663 PMCID: PMC5519014 DOI: 10.1038/emm.2017.69] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 01/19/2017] [Accepted: 01/23/2017] [Indexed: 02/07/2023] Open
Abstract
Ankylosing spondylitis (AS) is a type of autoimmune disease that predominantly affects the spine and sacroiliac joints. However, the pathogenesis of AS remains unclear. Some evidence indicates that infection with bacteria, especially Gram-negative bacteria, may have an important role in the onset and progression of AS. Recently, many studies have demonstrated that mesenchymal stem cells (MSCs) dysfunction may contribute to the pathogenesis of many rheumatic diseases. We previously demonstrated that MSCs from AS patients exhibited markedly enhanced osteogenic differentiation capacity in vitro under non-inflammatory conditions. However, the properties of MSCs from AS patients in an inflammatory environment have never been explored. Lipopolysaccharide (LPS), a proinflammatory substance derived from the outer membrane of Gram-negative bacteria, can alter the status and function of MSCs. However, whether MSCs from AS patients exhibit abnormal responses to LPS stimulation has not been reported. Autophagy is a lysosome-mediated catabolic process that participates in many physiological and pathological processes. The link between autophagy and AS remains largely unknown. The level of autophagy in ASMSCs after LPS stimulation remains to be addressed. In this study, we demonstrated that although the basal level of autophagy did not differ between MSCs from healthy donors (HDMSCs) and ASMSCs, LPS-induced autophagy was weaker in ASMSCs than in HDMSCs. Specifically, increased TRAF4 expression in ASMSCs impaired LPS-induced autophagy, potentially by inhibiting the phosphorylation of Beclin-1. These data may provide further insight into ASMSC dysfunction and the precise mechanism underlying the pathogenesis of AS.
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Qian Q, Xu X, He H, Ji H, Zhang H, Ding Y, Dai SM, Zou Y, Zhu Q, Yang C, Ye S, Jiang L, Tang JP, Tong Q, He D, Zhao D, Li Y, Ma Y, Zhou J, Yuan Z, Zhang J, Jin L, Zhou X, Reveille JD, Zou H, Wang J. Clinical patterns and characteristics of ankylosing spondylitis in China. Clin Rheumatol 2017; 36:1561-1568. [PMID: 28550390 DOI: 10.1007/s10067-017-3660-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 04/21/2017] [Indexed: 12/17/2022]
Abstract
The study aimed to determine whether unique clinical patterns of AS may exist in China, specifically to explore the different clinical manifestations caused by gender, HLA-B27 status, and age at disease onset. The multicenter cross-sectional survey was conducted and 1251 patients were enrolled across China, representing a broad spectrum of Chinese AS patients. The mean age at onset and diagnosis were 29.2 (11.4) and 33.5 (12.6) years, respectively. The male/female ratio was 2.7:1. Acute anterior uveitis (AAU) was experienced in 10.3% of AS patients and 9.1% patients had juvenile-onset AS (JoAS). Men were significantly younger at onset and diagnosis and showed a higher frequency of HLA-B27 positivity, JoAS, and AAU than women. HLA-B27-positive patients had a younger age of onset than HLA-B27-negative patients. HLA-B27-positive patients were nearly three times as likely to develop AAU than negative patients (P = 0.04). JoAS patients had a family history of AS more often than adult-onset AS (AoAS) patients, and 4.9% of JoAS patients underwent surgical treatments, a rate more than six times that of AoAS patients (P = 0.01). Men had higher levels of C-reactive protein than women, as did HLA-B27 positives compared to negative patients, and JoAS compared to AoAS (all P < 0.05). The clinical patterns of our AS patients were similar to those in other studies in non-Chinese cohort: (1) the age at onset was 29.2 (11.4) years, which was older than found in other studies; (2) men were more likely be HLA-B27 carriers than women; and (3) AAU was less common in Chinese patients.
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Affiliation(s)
- Qiaoxia Qian
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Xia Xu
- Division of Rheumatology and Immunology, Changhai Hospital, Shanghai, China
| | - Hongjun He
- Division of Rheumatology, Taixing People's Hospital, Taizhou, Jiangsu Province, China
| | - Hengdong Ji
- Division of Rheumatology, Taizhou People's Hospital, Taizhou, Jiangsu Province, China
| | - Hui Zhang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Yue Ding
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Sheng-Ming Dai
- Department of Rheumatology and Immunology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yaohong Zou
- Division of Rheumatology and Immunology, Wuxi People's Hospital, Wuxi, Jiangsu Province, China
| | - Qi Zhu
- Institute of Arthritis Research, Shanghai Academy of Chinese Medical Sciences, Guanghua Integrative Medicine Hospital, Shanghai, China
| | - Chengde Yang
- Division of Rheumatology, Ruijin Hospital, Shanghai Jiaotong University Schools of Medicine, Shanghai, China
| | - Shuang Ye
- Division of Rheumatology, Renji Hospital, Shanghai Jiaotong University Schools of Medicine, Shanghai, China
| | - Lindi Jiang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jian-Ping Tang
- Division of Rheumatology and Immunology, Tongji Hospital of Tongji University School of Medicine, Shanghai, China
| | - Qiang Tong
- Division of Rheumatology and Immunology, Changhai Hospital, Shanghai, China
| | - Dongyi He
- Institute of Arthritis Research, Shanghai Academy of Chinese Medical Sciences, Guanghua Integrative Medicine Hospital, Shanghai, China
| | - Dongbao Zhao
- Division of Rheumatology and Immunology, Changhai Hospital, Shanghai, China
| | - Yuan Li
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Yanyun Ma
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Jingru Zhou
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Ziyu Yuan
- Fudan-Taizhou Institute of Health Sciences, Taizhou, Jiangsu Province, China
| | - Juan Zhang
- Fudan-Taizhou Institute of Health Sciences, Taizhou, Jiangsu Province, China
| | - Li Jin
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China.,Fudan-Taizhou Institute of Health Sciences, Taizhou, Jiangsu Province, China
| | - Xiaodong Zhou
- University of Texas-McGovern Medical School, Houston, TX, USA
| | - John D Reveille
- University of Texas-McGovern Medical School, Houston, TX, USA
| | - Hejian Zou
- Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China. .,Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China.
| | - Jiucun Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China. .,Fudan-Taizhou Institute of Health Sciences, Taizhou, Jiangsu Province, China. .,Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China.
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ERAP1 rs30187 single nucleotide polymorphism does not confer disease susceptibility in North Indian children with enthesitis-related arthritis. Clin Rheumatol 2017; 36:1161-1165. [DOI: 10.1007/s10067-017-3560-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 12/21/2016] [Accepted: 01/21/2017] [Indexed: 10/20/2022]
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35
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Jung SH, Cho SM, Yim SH, Kim SH, Park HC, Cho ML, Shim SC, Kim TH, Park SH, Chung YJ. Developing a Risk-scoring Model for Ankylosing Spondylitis Based on a Combination of HLA-B27, Single-nucleotide Polymorphism, and Copy Number Variant Markers. J Rheumatol 2016; 43:2136-2141. [PMID: 27909141 DOI: 10.3899/jrheum.160347] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2016] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To develop a genotype-based ankylosing spondylitis (AS) risk prediction model that is more sensitive and specific than HLA-B27 typing. METHODS To develop the AS genetic risk scoring (AS-GRS) model, 648 individuals (285 cases and 363 controls) were examined for 5 copy number variants (CNV), 7 single-nucleotide polymorphisms (SNP), and an HLA-B27 marker by TaqMan assays. The AS-GRS model was developed using logistic regression and validated with a larger independent set (576 cases and 680 controls). RESULTS Through logistic regression, we built the AS-GRS model consisting of 5 genetic components: HLA-B27, 3 CNV (1q32.2, 13q13.1, and 16p13.3), and 1 SNP (rs10865331). All significant associations of genetic factors in the model were replicated in the independent validation set. The discriminative ability of the AS-GRS model measured by the area under the curve was excellent: 0.976 (95% CI 0.96-0.99) in the model construction set and 0.951 (95% CI 0.94-0.96) in the validation set. The AS-GRS model showed higher specificity and accuracy than the HLA-B27-only model when the sensitivity was set to over 94%. When we categorized the individuals into quartiles based on the AS-GRS scores, OR of the 4 groups (low, intermediate-1, intermediate-2, and high risk) showed an increasing trend with the AS-GRS scores (r2 = 0.950) and the highest risk group showed a 494× higher risk of AS than the lowest risk group (95% CI 237.3-1029.1). CONCLUSION Our AS-GRS could be used to identify individuals at high risk for AS before major symptoms appear, which may improve the prognosis for them through early treatment.
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Affiliation(s)
- Seung-Hyun Jung
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - Sung-Min Cho
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - Seon-Hee Yim
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - So-Hee Kim
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - Hyeon-Chun Park
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - Mi-La Cho
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - Seung-Cheol Shim
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - Tae-Hwan Kim
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - Sung-Hwan Park
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea.,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea
| | - Yeun-Jun Chung
- From the Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea, College of Medicine; Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea, College of Medicine; Hanyang University Hospital for Rheumatic Diseases; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Seoul; Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, South Korea. .,S.H. Jung, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.M. Cho, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Yim, MD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; S.H. Kim, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; H.C. Park, MS, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea; M.L. Cho, PhD, Rheumatism Research Center, Catholic Research Institutes of Medical Science, The Catholic University of Korea; S.C. Shim, MD, PhD, Division of Rheumatology, Daejeon Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital; T.H. Kim, MD, PhD, Hanyang University Hospital for Rheumatic Diseases; S.H. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital; Y.J. Chung, MD, PhD, Integrated Research Center for Genome Polymorphism, Department of Microbiology, The Catholic University of Korea.
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A complex role of anthrax toxin receptor 2 polymorphisms and capillary morphogenesis protein 2 in ankylosing spondylitis pathogenesis. Clin Rheumatol 2016; 35:2243-50. [PMID: 26728147 DOI: 10.1007/s10067-015-3158-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 12/07/2015] [Accepted: 12/21/2015] [Indexed: 01/17/2023]
Abstract
This study investigated the role of anthrax toxin receptor 2 (ANTXR2) gene polymorphisms and capillary morphogenesis protein 2 (CMG2) expression in susceptibility and pathogenesis to ankylosing spondylitis (AS) in the Han Chinese in Beijing. A case-control study was performed using 602 AS patient samples meeting the revised New York criterion and 619 matched controls from Han Chinese individuals. Nineteen single-nucleotide polymorphisms (SNPs) of ANTXR2 genes were selected and genotyped using the Sequenom iPlex platform. Real-time polymerase chain reaction and flow cytometry were performed to investigate the impact of SNP polymorphisms on ANTXR2 transcription and CMG2 expression, respectively. The association of variants with AS was examined with UNPHASED 3.1.5. A novel association was observed between AS and three SNPs in the ANTXR2 gene (rs4690127, rs6823031, and rs4333130; P = 0.004, 0.011, and 0.013, respectively), confirming the association between rs433130 and AS in the Han Chinese. The strongest haplotype association was observed with rs4690127-rs6823031-rs4333130 (P = 2.5 × 10(-4)). rs6534639 and rs4333130 showed a cis-interaction (P = 0.027) in AS. ANTXR2 messenger RNA (mRNA) expression was significantly higher in the AS group than in the control group (P = 0.039). CMG2 expression in the lipopolysaccharide (LPS)-stimulated group was significantly lower than that in the control group (P = 0.018). This study reports a novel association between ANTXR2 and AS in the Han Chinese. ANTXR2 genetic polymorphisms affect ANTXR2 mRNA transcription and CMG2 expression. The opposing results observed for ANTXR2 transcription and CMG2 expression suggest a complex role of ANTXR2 polymorphisms in AS pathogenesis.
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Mahmoudi M, Aslani S, Nicknam MH, Karami J, Jamshidi AR. New insights toward the pathogenesis of ankylosing spondylitis; genetic variations and epigenetic modifications. Mod Rheumatol 2016; 27:198-209. [PMID: 27425039 DOI: 10.1080/14397595.2016.1206174] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ankylosing spondylitis (AS) is a chronic inflammatory autoimmune disease, characterized by typically an axial arthritis. AS is the prototype of a group of disorders called spondyloarthropathies, which is believed to have common clinical manifestations and genetic predisposition. To date, the exact etiology of AS remains unclear. Over the past few years, however, the role of genetic susceptibility and epigenetic modifications caused through environmental factors have been extensively surveyed with respect to the pathogenesis of AS, resulted in important advances. This review article focuses on the recent advances in the field of AS research, including HLA and non-HLA susceptibility genes identified in genome-wide association studies (GWAS), and aberrant epigenetic modifications of gene loci associated with AS. HLA genes most significantly linked with AS susceptibility include HLA-B27 and its subtypes. Numerous non-HLA genes such as those in ubiquitination, aminopeptidases and MHC class I presentation molecules like ERAP-1 were also reported. Moreover, epigenetic modifications occurred in AS has been summarized. Taken together, the findings presented in this review attempt to explain the circumstance by which both genetic variations and epigenetic modifications are involved in triggering and development of AS. Nonetheless, several unanswered dark sides continue to clog our exhaustive understanding of AS. Future researches in the field of epigenetics should be carried out to extend our vision of AS etiopathogenesis.
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Affiliation(s)
- Mahdi Mahmoudi
- a Rheumatology Research Center, Tehran University of Medical Sciences , Tehran , Iran and
| | - Saeed Aslani
- a Rheumatology Research Center, Tehran University of Medical Sciences , Tehran , Iran and
| | | | - Jafar Karami
- a Rheumatology Research Center, Tehran University of Medical Sciences , Tehran , Iran and
| | - Ahmad Reza Jamshidi
- a Rheumatology Research Center, Tehran University of Medical Sciences , Tehran , Iran and
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Lee YH, Song GG. Associations between ERAP1 polymorphisms and susceptibility to ankylosing spondylitis: a meta-analysis. Clin Rheumatol 2016; 35:2009-2015. [DOI: 10.1007/s10067-016-3287-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 04/04/2016] [Accepted: 04/17/2016] [Indexed: 01/15/2023]
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Wang Q, Yang Y, Lv J, Lin Q, Wang L, Fanga Z. Association Study of Single Nucleotide Polymorphisms Rs4552569/Rs17095830 with Ankylosing Spondylitis in A Chinese Population. Open Rheumatol J 2016; 10:1-7. [PMID: 27047576 PMCID: PMC4792219 DOI: 10.2174/1874312901610010001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 11/18/2015] [Accepted: 11/26/2015] [Indexed: 11/22/2022] Open
Abstract
Genetics play a key role in ankylosing spondylitis (AS). A previous genome-wide association study (GWAS) showed that rs4552569 (on 5q14.3) and rs17095830 (on 12q12) were associated with the risk of AS in Han Chinese, which was not replicated in other two studies. In the current study, rs4552569 and rs17095830 were genotyped in 735 Han Chinese AS patients and 1204 healthy controls using high resolution melting analysis (HRMA). We compared the distributions of genotypes and alleles between AS cases and healthy controls. Rs30187 and rs10865331, which were reported to be associated with AS susceptibility in various populations, were also genotyped and analyzed as positive controls. The results showed that no association between rs4552569/rs17095830 polymorphisms and AS susceptibility was found. On the other hand, an association between rs17095830 and one of AS complication (inflammatory bowel disease) was observed (allelic P value=0.0180; odds ratio[OR]=1.739; 95% confidence interval [CI]=1.146-2.639).
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Affiliation(s)
- Qingwen Wang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, PR China
| | - Yuanyuan Yang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, PR China
| | - Jiyang Lv
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, PR China
| | - Qi Lin
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, PR China
| | - Luo Wang
- Biomedical Research Institute, Shenzhen Peking University- The Hong Kong University of Science and Technology Medical Center, Guangdong Province, China
| | - Zhengyu Fanga
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, PR China; Biomedical Research Institute, Shenzhen Peking University- The Hong Kong University of Science and Technology Medical Center, Guangdong Province, China
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Association of rs11209032 and rs1004819 Polymorphisms in Interleukin-23 Receptor Gene With Ankylosing Spondylitis. Arch Rheumatol 2016; 31:201-207. [PMID: 29900935 DOI: 10.5606/archrheumatol.2016.5827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 01/08/2016] [Indexed: 11/21/2022] Open
Abstract
Objectives This study aims to investigate the distribution of human leukocyte antigen B27 (HLA-B27) alleles (+/-) and interleukin-23 receptor (IL-23R) gene rs11209032 and rs1004819 polymorphisms among ankylosing spondylitis (AS) patients in a Turkish cohort. Patients and methods The study sample comprised 106 AS patients (89 males, 18 females; mean age 38.9±10 years; range 19 to 65 years) and 82 healthy controls (70 males, 12 females; mean age 32.15±7.07 years; range 19 to 51 years). Distribution of HLA-B27 alleles (+)/(-) in AS patients were observed by reverse hybridization technique. Genotyping of IL-23R rs11209032 and rs1004819 polymorphisms of AS patients and healthy controls were performed by real time polymerase chain reaction. Results Of the AS patients, 69 (65.1%) were HLA-B27 positive. Distribution of rs11209032 genotype frequencies in AS group were 31.1% for GG, 50.9% for GA, and 17.9% for AA; while in control group, it was 34.1% for GG, 53.7% for GA, and 12.2% for AA. Distribution of rs1004819 genotype frequencies in AS group were 30.2% for CC, 52.8% for CT, and 17.0% for TT; while in control group, it was 42.7% for CC, 46.3% for CT, and 11.0% for TT. There was no significant difference between AS patients and controls in terms of genotype frequencies of IL-23R gene rs11209032 and rs1004819 polymorphisms. Conclusion No association was found between AS and IL23R rs11209032 and rs1004819 polymorphisms in this Turkish AS cohort.
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Abstract
PURPOSE OF REVIEW This article will review the genetic evidence implicating ERAP1, which encodes the endoplasmic reticulum-associated amino-peptidase 1, in susceptibility to rheumatic disease. RECENT FINDINGS Genetic variants and haplotypes of ERAP1 are associated with AS, psoriasis, and Behçet's disease in people of varying ancestries. In each of these diseases, disease-associated variants of ERAP1 have been shown to interact with disease-associated class I human leukocyte antigen alleles to influence disease risk. Functionally, disease-associated missense variants of ERAP1 concertedly alter ERAP1 enzymatic function, both quantitatively and qualitatively, whereas other disease-associated variants influence ERAP1 expression. Therefore, ERAP1 haplotypes (or allotypes) should be examined as functional units. Biologically, this amounts to an examination of the gene regulation and function of the protein encoded by each allotype. Genetically, the relationship between disease risk and ERAP1 allotypes should be examined to determine whether allotypes or individual variants produce the most parsimonious risk models. SUMMARY Future investigations of ERAP1 should focus on comprehensively characterizing naturally occurring ERAP1 allotypes, examining the enzymatic function and gene expression of each allotype, and identifying specific allotypes that influence disease susceptibility.
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Jethwa H, Bowness P. The interleukin (IL)-23/IL-17 axis in ankylosing spondylitis: new advances and potentials for treatment. Clin Exp Immunol 2015; 183:30-6. [PMID: 26080615 DOI: 10.1111/cei.12670] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2015] [Indexed: 12/24/2022] Open
Abstract
Ankylosing spondylitis (AS), the most common form of spondyloarthropathy, is a chronic, progressive multi-system inflammatory disorder characteristically affecting the sacroiliac joints and axial skeleton. Although the exact mechanisms underlying the pathogenesis of AS remain to be elucidated, the presence of human leucocyte antigen (HLA)-B27 is known to markedly increase its risk of development. Current treatments include non-steroidal anti-inflammatory drugs (NSAIDs) and tumour necrosis factor (TNF) blockers. In recent years, the interleukin (IL)-23/IL-17 pathway has been shown to have significance in the pathogenesis of AS and treatment modalities targeting this pathway have been shown to be beneficial in various other inflammatory conditions. This review provides an overview of the IL-23/IL-17 pathway in the pathogenesis of AS and summarizes new potential treatments for AS and related inflammatory diseases.
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Affiliation(s)
- H Jethwa
- Oxford University Hospitals NHS Trust, Oxford, UK
| | - P Bowness
- Oxford University Hospitals NHS Trust, Oxford, UK.,Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Science, Oxford OX3 7LD, UK
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Liu Y, Li L, Shi S, Chen X, Gao J, Zhu M, Yuan J. Association study of ankylosing spondylitis and polymorphisms in ERAP1 gene in Zhejiang Han Chinese population. Rheumatol Int 2015; 36:243-8. [PMID: 26350268 DOI: 10.1007/s00296-015-3350-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 08/18/2015] [Indexed: 02/02/2023]
Abstract
The susceptibility loci of ERAP1 polymorphisms have been found to be strongly associated with ankylosing spondylitis (AS). The researches in multiple ethnic cohorts suggested that the population attributable risk in ERAP1 polymorphisms is at a high significance level. This study was undertaken to estimate the prevalence and incidence of subsets of AS and investigate the specific variants of ERAP1 polymorphisms in AS susceptibility, in the Han ethnic Chinese population in Zhejiang Province. AS patients were selected, diagnosed, and confirmed by a qualified rheumatologist. The basal clinical and demographic characteristics were compared with all subjects. Genotypes for eight selected single nucleotide polymorphisms (SNPs) in ERAP1 gene (rs27038, rs27037, rs27434, rs27980, rs7711564, rs30187, rs10050860, and rs17482078) were determined by using the Sequenom MassARRAY iPLEX platform in Zhejiang Han Chinese population. Association analyses were performed on the whole genotyped data set in 707 unrelated ankylosing spondylitis cases and 837 ethnically matched controls. We observed the strongest association between AS and HLA-B27, which confers over 90 % of ankylosing spondylitis cases. Moreover, we found three loci of ERAP1 polymorphisms were at a high significance level (rs27037 P = 0.00451; rs27434 P = 0.00012; rs27980 P = 0.00682) with AS in Zhejiang population. We also confirmed polymorphism locus of ERAP1 previously reported association with AS (rs27434; P = 5.3 × 10(-12)). Our results indicated a difference in the mechanism of susceptibility loci in subsets of Zhejiang Han Chinese population and provided further evidence that rs27434 is the key polymorphism associated with AS in ERAP1 gene.
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Affiliation(s)
- Yangbo Liu
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, NO.2 Fuxue Lane, Lucheng District, Wenzhou, Zhejiang, China.
| | - Liangda Li
- Department of Rheumatology, Yinzhou Hospital Affiliated to Medical School of Ningbo University, Ningbo, Zhejiang, China.
| | - Shanfen Shi
- Department of Rheumatology, Yinzhou Hospital Affiliated to Medical School of Ningbo University, Ningbo, Zhejiang, China.
| | - Xin Chen
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, NO.2 Fuxue Lane, Lucheng District, Wenzhou, Zhejiang, China.
| | - Jianqing Gao
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, NO.2 Fuxue Lane, Lucheng District, Wenzhou, Zhejiang, China.
| | - Minyu Zhu
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, NO.2 Fuxue Lane, Lucheng District, Wenzhou, Zhejiang, China.
| | - Jiandong Yuan
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, NO.2 Fuxue Lane, Lucheng District, Wenzhou, Zhejiang, China.
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Wu X, Chen H, Xu H. The genomic landscape of human immune-mediated diseases. J Hum Genet 2015; 60:675-81. [PMID: 26290150 DOI: 10.1038/jhg.2015.99] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 07/06/2015] [Accepted: 07/16/2015] [Indexed: 02/06/2023]
Abstract
As the methodology of genetic detection has developed rapidly in recent years, through techniques such as genome-wide association studies (GWAS) and the secondary generation of sequencing, we are able to view the genomic landscape more clearly. It is well known that genes have a vital role in the pathogenesis of immune-mediated diseases (IMDs), which could provide important insight into new clinical therapeutic targets. Here, we review the genomic landscape of IMDs and analyse overlapping loci between diseases. There may be a need for more epigenetics studies to aid in the understanding of the transition from genotype to phenotype.
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Affiliation(s)
- Xin Wu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Haiyan Chen
- Department of Rheumatology, Zhongda Hospital, Southeast University, Shanghai, China
| | - Huji Xu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medical University, Shanghai, China
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Costantino F, Talpin A, Evnouchidou I, Kadi A, Leboime A, Said-Nahal R, Bonilla N, Letourneur F, Leturcq T, Ka Z, van Endert P, Garchon HJ, Chiocchia G, Breban M. ERAP1 Gene Expression Is Influenced by Nonsynonymous Polymorphisms Associated With Predisposition to Spondyloarthritis. Arthritis Rheumatol 2015; 67:1525-34. [PMID: 25740711 DOI: 10.1002/art.39072] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 02/10/2015] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Several polymorphisms in ERAP1 are strongly associated with susceptibility to spondyloarthritis (SpA). The combination of rs17482078, rs10050860, and rs30187 results in the construction of 3 major haplotypes that are associated with SpA (the "protective" haplotype T/T/C, the "neutral" haplotype C/C/C, and the "susceptibility" haplotype C/C/T). The aim of the present study was to determine whether such haplotypes might affect endoplasmic reticulum aminopeptidase 1 (ERAP-1) messenger RNA (mRNA) expression, protein level, and/or enzymatic activity in antigen-presenting cells, a type of cell that is potentially relevant to disease pathogenesis. METHODS Monocyte-derived dendritic cells (DCs) were generated in 2 cohorts (a discovery cohort and a replication cohort) comprising a total of 23 SpA patients and 44 healthy controls. Lymphoblastoid B cell lines were established from individuals who were homozygous for the risk, the neutral, or the protective ERAP1 haplotype, respectively. In those samples, we investigated the relationship between ERAP1 haplotypes and mRNA expression level. We also used Western blot analysis to measure the relative protein expression of ERAP-1 and a fluorogenic assay to measure its enzymatic activity. RESULTS In monocyte-derived DCs, there was a strong association between ERAP1 haplotypes and the ERAP-1 mRNA expression level, with higher levels in subjects harboring the susceptibility haplotype (P = 0.001 and P = 5.6 × 10(-7) in the discovery and replication cohorts, respectively). In lymphoblastoid B cell lines, we observed a significant correlation between haplotype risk score and ERAP1 transcript or protein level (P = 0.003, ρ = 0.92 for both). Enzymatic activity followed a similar trend both in monocyte-derived DCs and in lymphoblastoid B cell lines. CONCLUSION These data provide strong evidence that SpA-associated ERAP1 polymorphisms affect the level of gene expression in antigen-presenting cells. How increased production/activity of ERAP-1 may influence susceptibility to SpA remains to be determined.
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Affiliation(s)
- Félicie Costantino
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France and Hôpital Ambroise Paré, AP-HP, Boulogne-Billancourt, France
| | - Alice Talpin
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Irini Evnouchidou
- INSERM U1151, CNRS (UMR 8253), Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Amir Kadi
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Ariane Leboime
- Hôpital Ambroise Paré, AP-HP, Boulogne-Billancourt, France
| | | | - Nelly Bonilla
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Franck Letourneur
- Institut Cochin, INSERM U1016, CNRS (UMR8104) and Université Paris Descartes, Paris, France
| | - Tifenn Leturcq
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Zeyna Ka
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Peter van Endert
- INSERM U1151, CNRS (UMR 8253), Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Henri-Jean Garchon
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France and Hôpital Ambroise Paré, AP-HP, Boulogne-Billancourt, France
| | - Gilles Chiocchia
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Maxime Breban
- INSERM U1173, Université de Versailles St. Quentin-en-Yvelines, and Laboratoire d'Excellence INFLAMEX, Paris, France and Hôpital Ambroise Paré, AP-HP, Boulogne-Billancourt, France
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Chen L, Ridley A, Hammitzsch A, Al-Mossawi MH, Bunting H, Georgiadis D, Chan A, Kollnberger S, Bowness P. Silencing or inhibition of endoplasmic reticulum aminopeptidase 1 (ERAP1) suppresses free heavy chain expression and Th17 responses in ankylosing spondylitis. Ann Rheum Dis 2015; 75:916-23. [PMID: 26130142 PMCID: PMC4853590 DOI: 10.1136/annrheumdis-2014-206996] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 04/12/2015] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Human leucocyte antigen (HLA)-B27 and endoplasmic reticulum aminopeptidase 1 (ERAP1) are strongly associated with ankylosing spondylitis (AS). ERAP1 is a key aminopeptidase in HLA class I presentation and can potentially alter surface expression of HLA-B27 free heavy chains (FHCs). We studied the effects of ERAP1 silencing/inhibition/variations on HLA-B27 FHC expression and Th17 responses in AS. METHODS Flow cytometry was used to measure surface expression of HLA class I in peripheral blood mononuclear cells (PBMCs) from patients with AS carrying different ERAP1 genotypes (rs2287987, rs30187 and rs27044) and in ERAP1-silenced/inhibited/mutated HLA-B27-expressing antigen presenting cells (APCs). ERAP1-silenced/inhibited APCs were cocultured with KIR3DL2CD3ε-reporter cells or AS CD4+ T cells. Th17 responses of AS CD4+ T cells were measured by interleukin (IL)-17A ELISA and Th17 intracellular cytokine staining. FHC cell surface expression and Th17 responses were also measured in AS PBMCs following ERAP1 inhibition. RESULTS The AS-protective ERAP1 variants, K528R and Q730E, were associated with reduced surface FHC expression by monocytes from patients with AS and HLA-B27-expressing APCs. ERAP1 silencing or inhibition in APCs downregulated HLA-B27 FHC surface expression, reduced IL-2 production by KIR3DL2CD3ε-reporter cells and suppressed the Th17 expansion and IL-17A secretion by AS CD4+ T cells. ERAP1 inhibition of AS PBMCs reduced HLA class I FHC surface expression by monocytes and B cells, and suppressed Th17 expansion. CONCLUSIONS ERAP1 activity determines surface expression of HLA-B27 FHCs and potentially promotes Th17 responses in AS through binding of HLA-B27 FHCs to KIR3DL2. Our data suggest that ERAP1 inhibition has potential for AS treatment.
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Affiliation(s)
- Liye Chen
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Anna Ridley
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Ariane Hammitzsch
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Mohammad Hussein Al-Mossawi
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Helen Bunting
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | | | - Antoni Chan
- Department of Rheumatology, Royal Berkshire Hospital, Reading, UK
| | - Simon Kollnberger
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Paul Bowness
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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Kenna TJ, Robinson PC, Haroon N. Endoplasmic reticulum aminopeptidases in the pathogenesis of ankylosing spondylitis. Rheumatology (Oxford) 2015; 54:1549-56. [PMID: 26070942 DOI: 10.1093/rheumatology/kev218] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Indexed: 01/05/2023] Open
Abstract
There has been significant progress in our understanding of the pathogenesis of AS. The advent of genome-wide association studies has increased the known loci associated with AS to more than 40. The endoplasmic reticulum resident aminopeptidases (ERAP) 1 and 2 were identified in this manner and are of particular interest. There appears to be a genetic as well as a functional interaction of ERAP1 and 2 with HLA-B27 based on the known functions of these molecules. Recent studies on the structure, immunological effects and the peptide-trimming properties of ERAP 1 and 2 have helped to provide insight into their pathogenic potential in AS. In this review, we explore the role of ERAP 1 and 2 in the pathogenesis of AS.
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Affiliation(s)
- Tony J Kenna
- The University of Queensland Diamantina Institute, University of Queensland, Translational Research Institute, Princess Alexandra Hospital, Brisbane
| | - Philip C Robinson
- Centre for Neurogenetics and Statistical Genomics, Queensland Brain Institute, University of Queensland, Brisbane, Queensland, Australia
| | - Nigil Haroon
- Division of Rheumatology, University of Toronto and University Health Network, Toronto, Ontario, Canada
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Chen C, Zhang X. ERAP1 variants are associated with ankylosing spondylitis in East Asian population: a new Chinese case-control study and meta-analysis of published series. Int J Immunogenet 2015; 42:168-73. [PMID: 25817437 DOI: 10.1111/iji.12196] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 02/02/2015] [Accepted: 03/04/2015] [Indexed: 12/18/2022]
Abstract
Endoplasmic reticulum aminopeptidase 1 (ERAP1) has been confirmed to be associated with ankylosing spondylitis (AS) in Caucasian. However, whether they are associated with AS in East Asian population remains unidentified. We investigated this relationship by a new Chinese case-control study and a meta-analysis of published series. 368 cases and 460 controls were recruited in the Chinese case-control study. Genotyping was completed using the chip-based matrix-assisted laser desorption ionization time-of-flight mass spectrometry. Allelic associations were analysed using contingency tables. In the meta-analysis, up to 2748 cases and 2774 controls from seven different studies and the new Chinese study were combined using Review Manager software version 5.1.1. Mantel-Haenszel or Inverse Variance test was used to calculate fixed or random-effects pooled ORs. In the new Chinese study, strong association with AS was observed for marker rs10050860, rs27434 and rs1065407 at P value of <0.001. Moderate association was observed for rs30187 at P value of <0.01, while no association was observed for rs27044 (P = 0.37) and rs2287987 (P = 0.23). The meta-analysis showed that rs27037 and rs30187 were strongly associated with AS (P < 0.00001). Significant association was also observed for rs27434 (P = 0.001). No association was shown for rs27044 (P = 0.70). We concluded that ERAP1 variants are associated with AS in East Asian population, indicating a common pathogenic mechanism for AS in East Asians and Caucasians.
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Affiliation(s)
- C Chen
- Department of Spinal Surgery, Tianjin Hospital, Tianjin, China
| | - X Zhang
- Department of Spinal Surgery, Tianjin Hospital, Tianjin, China
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49
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Abstract
The endoplasmic reticulum aminopeptidase 1 (ERAP1) performs a major role in antigen processing, trimming N-terminally extended peptides to the final epitope for presentation by major histocompatibility complex class I molecules. Recent genome-wide association studies have identified single nucleotide polymorphisms (SNPs) within ERAP1 as being associated with disease, in particular ankylosing spondylitis (AS). AS is a polygenic chronic inflammatory disease with a strong genetic link to HLA-B27 known for over 40 years. The association of ERAP1 SNPs with AS susceptibility is only observed in HLA-B27-positive individuals, which intersect on the antigen processing pathway. Recent evidence examining the trimming activity of polymorphic ERAP1 highlights its role in generating peptides for loading onto and stabilizing HLA-B27, and the consequent alterations in the interaction of specific NK cell receptors, and the activation of the unfolded protein response as important in the mechanism of disease pathogenesis. Here, we discuss the recent genetic association findings linking ERAP1 SNPs with AS disease susceptibility and the effect of these variants on ERAP1 function, highlighting mechanisms by which AS may arise. The identification of these functional variants of ERAP1 may lead to better stratification of AS patients by providing a diagnostic tool and a potential therapeutic target.
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Affiliation(s)
- Emma Reeves
- Cancer Sciences Unit, Somers Cancer Research Building, Southampton General Hospital, Mailpoint 824, Tremona Road, Southampton, SO16 6YD, UK
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Cai G, Xin L, Wang L, Fan D, Liu L, Hu Y, Ding N, Xu S, Xia G, Jin X, Xu J, Zou Y, Pan F. Associations between ERAP1 polymorphisms and ankylosing spondylitis susceptibility: An updated meta-analysis. Mod Rheumatol 2014; 25:453-61. [DOI: 10.3109/14397595.2014.973658] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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