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Sasaki T, Razia S, Kimura-Kataoka K, Araki T, Kusaka A, Takeshita H, Fujihara J. Association of a single nucleotide polymorphism (rs27434) in the ERAP1 gene with plural tissue weight. Leg Med (Tokyo) 2024; 68:102419. [PMID: 38342012 DOI: 10.1016/j.legalmed.2024.102419] [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: 11/08/2023] [Revised: 01/09/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
Our study was designed to examine the correlation between single nucleotide polymorphism (SNP) in the endoplasmic reticulum aminopeptidase 1 (ERAP1) gene, specifically focusing on rs27434, and plural tissue weight. We conducted this investigation using autopsy samples from the Japanese population. Blood samples were collected from 178 Japanese subjects who had undergone autopsies in Shimane Prefecture. Genomic DNA was subsequently extracted from these samples. SNP (rs27434, G>A substitution) was analyzed by polymerase chain reaction (PCR) followed by restriction fragment length polymorphism (RFLP) analysis. In the present study, rs27434 exhibited a statistically significant association with brain weight (g) in both female and male individuals. Among males, rs27434 displayed significant relationships with liver weight (g), and body surface area (m2). In females, rs27434 was significantly related to the length of the appendix. Across both genders, individuals with GA and AA genotypes tended to exhibit higher levels in these respective measurements compared to those with the GG genotype. These results suggest that genetic variant of ERAP1 gene may influence the weight of the organs. To the best of our knowledge, this is the first study investigating the interaction between the association of rs27434 in the ERAP1 gene and data routinely measured at autopsy, such as tissue weight. However, conducting further investigations with larger population samples could provide more comprehensive insights to clarify this issue.
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Affiliation(s)
- Takamitsu Sasaki
- Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Sultana Razia
- Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Kaori Kimura-Kataoka
- Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Takeshi Araki
- Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Akari Kusaka
- Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Haruo Takeshita
- Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Japan; Autopsy Imaging Center, Shimane University Faculty of Medicine, Izumo, Japan.
| | - Junko Fujihara
- Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
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2
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Fernández-Torres J, Zamudio-Cuevas Y, Ruiz-Dávila X, López-Macay A, Martínez-Flores K. MICA and NLRP3 gene polymorphisms interact synergistically affecting the risk of ankylosing spondylitis. Immunol Res 2024; 72:119-127. [PMID: 37665559 DOI: 10.1007/s12026-023-09419-8] [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: 06/07/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
Ankylosing spondylitis (AS) is an autoinflammatory disease that affects the sacroiliac joints, causing stiffness and pain in the back. MICA is a ligand of the NKG2D receptor, and an increase in its expression affects the immune response in various diseases. NLRP3 is a multiprotein complex that promotes the release of IL-1β, but its role in AS has been minimally explored. The objective of this study was to analyze the association and interaction of polymorphic variants of the MICA and NLRP3 genes in patients with AS. In this case-control study, patients with AS were included and compared with healthy controls of Mexican origin. The polymorphisms rs4349859 and rs116488202 of MICA and rs3806268 and rs10754558 of NLRP3 were genotyped using TaqMan probes. Associations were determined using logistic regression models, while interactions were analyzed by the multifactorial dimensionality reduction (MDR) method. A P value < 0.05 was considered statistically significant. The minor allele of rs4349859 (A) and rs116488202 (T) of MICA polymorphisms showed risk associations with AS (OR = 9.22, 95% CI = 4.26-20.0, P < 0.001; OR = 9.36, 95% CI = 4.17-21.0, P < 0.001), while the minor allele of the rs3806268 (A) polymorphism of NLRP3 was associated with protection (OR = 0.55, 95% CI = 0.33-0.91, P = 0.019). MDR analysis revealed synergistic interactions between the MICA and NLRP3 polymorphisms (P = 0.012). In addition, high- and low-risk genotypes were identified among these variants. The study findings suggest that the MICA rs4349859 A allele and rs116488202 T allele are associated with AS risk. An interaction between MICA and NLRP3 was observed which could increase the genetic risk in AS.
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Affiliation(s)
- Javier Fernández-Torres
- Laboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calzada México-Xochimilco 289, C.P. 14389, Alcaldía Tlalpan, Mexico City, Mexico.
- Biology Department, Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico.
| | - Yessica Zamudio-Cuevas
- Laboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calzada México-Xochimilco 289, C.P. 14389, Alcaldía Tlalpan, Mexico City, Mexico
| | | | - Ambar López-Macay
- Laboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calzada México-Xochimilco 289, C.P. 14389, Alcaldía Tlalpan, Mexico City, Mexico
| | - Karina Martínez-Flores
- Laboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calzada México-Xochimilco 289, C.P. 14389, Alcaldía Tlalpan, Mexico City, Mexico
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3
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Saad MA, Abdul-Sattar AB, Abdelal IT, Baraka A. Shedding Light on the Role of ERAP1 in Axial Spondyloarthritis. Cureus 2023; 15:e48806. [PMID: 38024089 PMCID: PMC10645460 DOI: 10.7759/cureus.48806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2023] [Indexed: 12/01/2023] Open
Abstract
Spondyloarthritis (SpA) is a multifactorial chronic inflammatory disease affecting the axial skeleton (axSpA) and/or peripheral joints (p-SpA) and entheses. The disease's pathogenesis depends on genetic, immunological, mechanical, and environmental factors. Endoplasmic reticulum aminopeptidase 1 (ERAP1) is a multifunctional enzyme that shapes the peptide repertoire presented by major histocompatibility complex (MHC) class I molecules. Genome-wide association studies (GWAS) have identified different single nucleotide polymorphisms (SNPs) in ERAP1 that are associated with several autoimmune diseases, including axSpA. Therefore, a deeper understanding of the ERAP1 role in axSpA could make it a potential therapeutic target for this disease and offer greater insight into its impact on the immune system. Here, we review the biological functions and structure of ERAP1, discuss ERAP1 polymorphisms and their association with axSpA, highlight the interaction between ERAP1 and human leukocyte antigen (HLA)-B27, and review the association between ERAP1 SNPs and axSpA clinical parameters.
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Affiliation(s)
- Mohamed A Saad
- Rheumatology and Rehabilitation, Physical Medicine and Rehabilitation (PMR) Hospital, Kuwait, KWT
| | - Amal B Abdul-Sattar
- Rheumatology and Rehabilitation, Faculty of Medicine, Zagazig University, Zagazig, EGY
| | - Ibrahim T Abdelal
- Rheumatology and Rehabilitation, Faculty of Medicine, Zagazig University, Zagazig, EGY
| | - Ahmed Baraka
- Clinical Pathology, Faculty of Medicine, Zagazig University, Zagazig, EGY
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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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Bugaj B, Wielińska J, Bogunia-Kubik K, Świerkot J. Searching for New Genetic Biomarkers of Axial Spondyloarthritis. J Clin Med 2022; 11:jcm11102912. [PMID: 35629038 PMCID: PMC9148009 DOI: 10.3390/jcm11102912] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/11/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Axial spondyloarthritis (axSpA) is a chronic inflammatory condition of the spine. In addition to musculoskeletal symptoms, there are also extra-articular manifestations. The aim of this study was to search for new biomarkers associated with the clinical presentation and treatment response in axSpA patients. Methods: In this study, 106 axSpA patients and 110 healthy controls were enrolled. Six single-nucleotide polymorphisms (SNPs) were selected for genotyping: ERAP1 rs2287987, ERAP2 rs2549782, TNF rs1800629, TNFRSF1A rs767455, TNFRSF1B rs1061622, and FCGR2A rs1801274. Participants were examined at baseline and after 12 and 24 weeks of anti-TNF therapy. Results: SNPs associated with high axSpA initial activity were TNFRSF1A rs767455 and TNFRSF1B rs1061622 (p < 0.008). The ERAP1 rs2287987 AA genotype was more frequently observed in patients with enthesitis (AA vs. G+, p = 0.049), while the TNFRSF1B rs1061622 GG genotype was more common in participants with uveitis (GG vs. TT, p = 0.042). Potential in predicting anti-TNF treatment response was demonstrated by ERAP1 rs2287987, ERAP2 rs2549782, TNFRSF1B rs1061622, and FCGR2A rs1801274. Conclusions: SNPs can be used to identify patients at risk of severe disease to initiate treatment earlier. Genetic testing will allow clinicians to choose the right drug for the patient.
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Affiliation(s)
- Bartosz Bugaj
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland;
- Correspondence:
| | - Joanna Wielińska
- Laboratory of Clinical Immunogenetics and Pharmacogenetics, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R. Weigla 12, 53-114 Wroclaw, Poland; (J.W.); (K.B.-K.)
| | - Katarzyna Bogunia-Kubik
- Laboratory of Clinical Immunogenetics and Pharmacogenetics, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R. Weigla 12, 53-114 Wroclaw, Poland; (J.W.); (K.B.-K.)
| | - Jerzy Świerkot
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland;
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Babaie F, Hosseinzadeh R, Ebrazeh M, Seyfizadeh N, Aslani S, Salimi S, Hemmatzadeh M, Azizi G, Jadidi-Niaragh F, Mohammadi H. The roles of ERAP1 and ERAP2 in autoimmunity and cancer immunity: New insights and perspective. Mol Immunol 2020; 121:7-19. [PMID: 32135401 DOI: 10.1016/j.molimm.2020.02.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 02/06/2023]
Abstract
Autoimmunity and cancer affect millions worldwide and both, in principal, result from dysregulated immune responses. There are many well-known molecules involved in immunological process playing as a double-edged sword, by which associating autoimmune diseases and cancer. In this regard, Endoplasmic reticulum aminopeptidases (ERAP) 1, which belongs to the M1 family of aminopeptidases, plays a central role as a "molecular ruler", proteolyzing of N-terminal of the antigenic peptides before their loading onto HLA-I molecules for antigen presentation in the Endoplasmic Reticulum (ER). Several genome-wide association studies (GWAS) highlighted the significance of ERAP1 and ERAP2 in autoimmune diseases, including Ankylosing spondylitis, Psoriasis, Bechet's disease, and Birdshot chorioretinopathy, as well as in cancers. The expression of ERAP1/2 is mostly altered in different cancers compared to normal cells, but how this affects anti-cancer immune responses and cancer growth has been little explored. Recent studies on the immunological outcomes and the catalytic functions of ERAP1 and ERAP2 have provided a better understanding of their potential pathogenetic role in autoimmunity and cancer. In this review, we summarize the role of ERAP1 and ERAP2 in the autoimmune diseases and cancer immunity based on the recent advances in GWAS studies.
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Affiliation(s)
- Farhad Babaie
- Department of Immunology and Genetic, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran; Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Ramin Hosseinzadeh
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Ebrazeh
- Department of Biology, Bonab Branch, Islamic Azad University, Bonab, Iran
| | - Narges Seyfizadeh
- Department of Medical Oncology, National Center for Tumor Diseases, Heidelberg University Hospital, Heidelberg, Germany
| | - Saeed Aslani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Soraya Salimi
- Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Maryam Hemmatzadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, 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
| | - 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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7
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Gao S, Xu T, Liang W, Xun C, Deng Q, Guo H, Sheng W. Association of
rs27044
and
rs30187
polymorphisms in
endoplasmic reticulum aminopeptidase 1
gene and ankylosing spondylitis susceptibility: A meta‐analysis. Int J Rheum Dis 2020; 23:499-510. [PMID: 31984677 DOI: 10.1111/1756-185x.13795] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 11/11/2019] [Accepted: 12/29/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Shutao Gao
- Department of Spine Surgery Xinjiang Medical University First Affiliated Hospital Urumqi China
| | - Tao Xu
- Department of Spine Surgery Xinjiang Medical University First Affiliated Hospital Urumqi China
| | - Weidong Liang
- Department of Spine Surgery Xinjiang Medical University First Affiliated Hospital Urumqi China
| | - Chuanhui Xun
- Department of Spine Surgery Xinjiang Medical University First Affiliated Hospital Urumqi China
| | - Qiang Deng
- Department of Spine Surgery Xinjiang Medical University First Affiliated Hospital Urumqi China
| | - Hailong Guo
- Department of Spine Surgery Xinjiang Medical University First Affiliated Hospital Urumqi China
| | - Weibin Sheng
- Department of Spine Surgery Xinjiang Medical University First Affiliated Hospital Urumqi China
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8
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Tang Y, Yang P, Wang F, Xu H, Zong SY. Association of polymorphisms in ERAP1 and risk of ankylosing spondylitis in a Chinese population. Gene 2017; 646:8-11. [PMID: 29278768 DOI: 10.1016/j.gene.2017.12.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/04/2017] [Accepted: 12/22/2017] [Indexed: 02/06/2023]
Abstract
To explore the association between five polymorphisms in endoplasmic reticulum associated aminopeptidase 1 (ERAP1) gene and risk of ankylosing spondylitis (AS) in a Chinese population. A case-control study enrolled 250 AS patients and 250 healthy controls was carried out. The genotypes of involved polymorphisms (rs27037, rs27038, rs469876, rs27044 and rs27980) in ERAP1 were detected by Sequenom Mass-Array platform. There were significant differences of the level of WBC (white blood cell), Platelets, CRP (C-reactive protein) and ESR (erythrocyte sedimentation rate) between AS patients and controls (Pall<0.05). There was statistically association between ERAP1 rs27044 polymorphism and risk of AS, and the carriers with rs27044 CG genotype have an increased the risk for AS (CG versus GG, OR=1.70, 95% CI=1.10-2.62, P=0.015). However, we found no evidence for the association of rs27037, rs469876, and rs27980 polymorphisms in ERAP1 with AS risk. Our findings indicated that ERAP1 rs27044 polymorphism was associated with the susceptibility of AS.
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Affiliation(s)
- Yin Tang
- Department of Clinical Laboratory, Zhangjiagang Hospital of Traditional Chinese Medicine, Zhangjiagang, Jiangsu 215600, China
| | - Ping Yang
- Department of Clinical Laboratory, Zhangjiagang Hospital of Traditional Chinese Medicine, Zhangjiagang, Jiangsu 215600, China
| | - Fang Wang
- Department of Clinical Laboratory, Zhangjiagang Hospital of Traditional Chinese Medicine, Zhangjiagang, Jiangsu 215600, China
| | - Hui Xu
- Department of Clinical Laboratory, Zhangjiagang Hospital of Traditional Chinese Medicine, Zhangjiagang, Jiangsu 215600, China
| | - Shou-Yang Zong
- Department of Clinical Laboratory, Jinhu People's Hospital of Jiangsu, Jinhu, Jiangsu 211600, China.
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9
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Liu S, Cao D, Shen Y, Li Y, Li Y, Shi L, Yu J, Li C, Zhang X, Sun M, Yao Y. The ERAP gene is associated with HCV chronic infection in a Chinese Han population. Hum Immunol 2017; 78:731-738. [PMID: 29037997 DOI: 10.1016/j.humimm.2017.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 09/15/2017] [Accepted: 10/11/2017] [Indexed: 02/01/2023]
Abstract
Endoplasmic reticulum aminopeptidases (ERAPs), ERAP1 and ERAP2, are critical components in the antigen-presentation system and are specialized to produce optimal-sized peptides for HLA I binding. ERAP gene polymorphisms have been correlated with HLA-associated diseases. To investigate the association between ERAP gene polymorphisms and HCV chronic infection, a TaqMan assay was used to genotype 4 SNPs (rs27044, rs30187, rs26618 and rs26653) in ERAP1 and 2 SNPs (rs2248374 and rs2549782) in ERAP2 genes in 376 Chinese Han HCV chronic infections and 324 healthy Chinese Han controls. The allelic distribution of rs26618 in the ERAP1 gene and rs2248374 in ERAP2 gene were both significantly different in case and control groups. The C-allele of rs26618 had an increased HCV chronicity risk compared with the T-allele (P=.025, OR=1.318, 95%CI: 1.035-1.677), and the same effect was found in A-allele of rs2248374 compared with G-allele (P=0.046, OR=1.244, 95%CI: 1.004-1.540). There were notable differences in the genotype distribution in analysis using the dominant genetic model in rs26618 (CC+CT vs. TT; P=0.007, OR=1.473, 95%CI: 1.091-1.989) and recessive genetic model in rs2248374 (AA vs. AG+GG; P=0.003, OR=1.548, 95%CI: 1.026-2.335). In addition, rs26618 and rs2248374-genotype combination played noteable effects on the clinical parameters. These results indicated that the ERAP gene may play a critical role in HCV chronicity in this Chinese Han population.
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Affiliation(s)
- Shuyuan Liu
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Danfeng Cao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Yunsong Shen
- The First People's Hospital in Yunnan Province & The Affiliated Hospital of Kunming Science and Technology University, Kunming 650032, China
| | - Yalin Li
- The First People's Hospital in Yunnan Province & The Affiliated Hospital of Kunming Science and Technology University, Kunming 650032, China
| | - Ying Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Li Shi
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Jiankun Yu
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Chuanyin Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Xinwen Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Mingbo Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China.
| | - Yufeng Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China.
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10
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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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11
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Ozen G, Deniz R, Eren F, Erzik C, Unal AU, Yavuz S, Aydin SZ, Inanc N, Direskeneli H, Atagunduz P. Association of ERAP1, IL23R and PTGER4 Polymorphisms with Radiographic Severity of Ankylosing Spondylitis. Open Rheumatol J 2017; 11:1-9. [PMID: 28400866 PMCID: PMC5366379 DOI: 10.2174/1874312901711010001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 12/14/2016] [Accepted: 01/04/2017] [Indexed: 11/22/2022] Open
Abstract
Background: Radiographic severity of ankylosing spondylitis (AS) shows such great variance that some patients never develop syndesmophytes throughout the entire disease span, whereas some develop bamboo spine relatively early. Objective: To study the association between ERAP1, IL23R and PTGER4 single nucleotide polymorphisms (SNPs) and radiographic severity in AS patients. Methods: rs27044 and rs30187 (ERAP1), rs11209032 (IL23R) and rs10440635 (PTGER4) SNPs were genotyped in 235 AS patients fulfilling the modified New York criteria. Patients were classified as mild- and severe-AS according to modified Stoke AS spinal score (mSASSS). Mild-AS is defined as having mSASSS of “0” following at least 10 years of disease duration. Severe-AS is defined as having mSASSS of >20 (patients with mild vertebral changes (i.e. squaring or erosions) were omitted for clear stratification) regardless of disease duration. Results: The genotype distributions and allele frequencies of ERAP1 rs27044 and rs30187, IL23R rs11209032 and PTGER4 rs10440635 SNPs were similar in mild- (n=171, mSASSS=0, 55.6% HLA-B27 positive) and severe-AS patients (n=64, mSASSS=48.5±17.8, 73.4% HLA-B27 positive). After adjustment for clinical differences between groups (gender, disease duration, HLA-B27 and smoking status) by logistic regression analysis, none of the alleles in the investigated SNPs were found to be associated with radiographic severity of AS. Conclusion: In radiographically well-categorized AS patients, ERAP1 rs27044 and rs30187, IL23R rs11209032 and PTGER4 rs10440635 SNPs are not found to be associated with radiographic severity of AS.
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Affiliation(s)
- Gulsen Ozen
- Department of Rheumatology, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Rabia Deniz
- Department of Internal Medicine, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Fatih Eren
- Department of Medical Biology, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Can Erzik
- Department of Medical Biology, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Ali Ugur Unal
- Department of Rheumatology, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Sule Yavuz
- Department of Rheumatology, Faculty of Medicine, Bilim University, Istanbul, Turkey
| | - Sibel Zehra Aydin
- Department of Rheumatology, School of Medicine, Ottawa University, Ottawa, Ontario, Canada
| | - Nevsun Inanc
- Department of Rheumatology, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Haner Direskeneli
- Department of Rheumatology, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Pamir Atagunduz
- Department of Rheumatology, Faculty of Medicine, Marmara University, Istanbul, Turkey
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