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Cai C, Huang Y, Li L, Miu KK, Wang Z, Deng Y, Cai Y, Li J, Wu L, Zhu H, Gao Y, Chen J, Xiao W, Lu L. Angiogenesis-related immune response may be the prelude to the syndesmophyte formation in Ankylosing spondylitis. Int Immunopharmacol 2024; 133:112040. [PMID: 38631220 DOI: 10.1016/j.intimp.2024.112040] [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: 11/22/2023] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Ankylosing spondylitis (AS) is a chronic autoimmune arthritis that mainly affects spine joints. To date, the pathogenesis of AS remains unclear, although immune cells and innate immune response cytokines have been suggested to be crucial players. METHODS By adopting a single-cell RNA sequencing approach in the AS cynomolgus model, we profiled and characterized PBMC proportions along disease progression. RESULTS Here, our primary focus was on the activation of an immune cascade-initiating lymphocyte subtype known as CD4+CXCR5+ T follicular helper (Tfh) cells. These Tfhs demonstrated a localized residence in AS bone lesion as an ectopic lymphoid structure. Moreover, Tfhs would serve as an upstream initiator for a pro-angiogenic cascade. Then, an expansion in CD14+ monocytes and DC cells subsets resulted in enhanced expression of angiogenesis genes in these AS cynomolgus monkeys. With a confirmed higher abundance of TNF-α accompanying H-type vascular invasion in the osteophytic region, pronounced expansion of Tfhs at such lesion site signaling for monocytes and DCs intrusion is considered as the prelude to the characteristic angiogenic bony outgrowth in AS known as syndesmophytes. CONCLUSIONS We explored the intimate relationship between local inflammation and bone formation in AS from the perspective of nascent vascularisation. Hence, our study lays the foundation for elucidating a unified AS pathogenesis through the immune-angiogenesis-osteogenesis axis.
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Affiliation(s)
- Chunmei Cai
- School of Life Science and Biopharmacy, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yuye Huang
- School of Life Science and Biopharmacy, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Liyan Li
- School of Life Science and Biopharmacy, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Kai Kei Miu
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong SAR, China
| | - Zhangting Wang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong SAR, China
| | - Yujie Deng
- Guangzhou National Laboratory, Guangzhou, China
| | - Yanzhen Cai
- School of Life Science and Biopharmacy, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jinxiu Li
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China
| | - Liang Wu
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China
| | - Hepeng Zhu
- School of Life Science and Biopharmacy, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yang Gao
- Department of Pharmacy & State Key Laboratory of Ophthalmology, Zhongshan Ophthalmological Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Jun Chen
- School of Life Science and Biopharmacy, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Wende Xiao
- Guangzhou First People's Hospital, Spine Surgery, Guangzhou 510180, China.
| | - Li Lu
- School of Life Science and Biopharmacy, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Qin C, Yu Q, Deng Z, Zhang Y, Chen M, Wang X, Hu T, Lei B, Yan Z, Cheng S. Causal relationship between the immune cells and ankylosing spondylitis: univariable, bidirectional, and multivariable Mendelian randomization. Front Immunol 2024; 15:1345416. [PMID: 38655262 PMCID: PMC11035830 DOI: 10.3389/fimmu.2024.1345416] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/25/2024] [Indexed: 04/26/2024] Open
Abstract
Background Ankylosing spondylitis (AS) is an autoimmune disease that affects millions of individuals. Immune cells have been recognized as having a crucial role in the pathogenesis of AS. However, their relationship has not been fully explored. Methods We chose to employ Mendelian randomization (MR) to investigate the potential correlation between immune cells and AS. We sourced the data on immune cells from the latest genome-wide association studies (GWASs). We obtained data on AS from the FinnGen consortium. Our comprehensive univariable MR analysis covered 731 immune cells to explore its potential causal relationship with AS. The primary analysis method was inverse-variance weighted (IVW). Additionally, we used Cochran's Q test and the MR-Egger intercept test to assess the presence of pleiotropy and heterogeneity. We examined whether our results could be influenced by individual single-nucleotide polymorphisms (SNPs) using the leave-one-out test. We conducted a bidirectional MR to investigate the reverse relationship. We also applied multivariable MR to decrease the potential influence between the immune cells. Results Overall, our univariable MR analysis revealed eight immune cells associated with AS. Among these, four immune cells contributed to an increased risk of AS, while four immune cells were identified as protective factors for AS. However, the Bonferroni test confirmed only one risk factor and one protective factor with a significance level of p < 6.84E-05. CD8 on effector memory CD8+ T cell could increase the risk of AS (p: 1.2302E-05, OR: 2.9871, 95%CI: 1.8289-4.8786). HLA DR on CD33dim HLA DR+ CD11b+ could decrease the risk of AS (p: 1.2301E-06, OR: 0.5446, 95%CI: 0.4260-0.6962). We also identified a bidirectional relationship between CD4 on CD39+ activated CD4 regulatory T cells and AS utilizing the bidirectional MR. To address potential confounding among immune cells, we employed multivariable MR analysis, which revealed that only one immune cell had an independent effect on AS. HLA DR on CD33dim HLA DR+ CD11b+ could decrease the risk of AS (p: 2.113E-06, OR: 0.0.5423, 95%CI: 0.4210-0.6983). Our findings were consistently stable and reliable. Conclusions Our findings indicated a potential link between immune cells and AS, which could provide a new idea for future research. Nevertheless, the specific underlying mechanisms require further exploration.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Zhengjian Yan
- Department of Orthopedics, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Si Cheng
- Department of Orthopedics, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Gui L, Gu J. The study of the effect of HLA-B27 on THP-1 monocytic cells survival and its mechanism. Int J Rheum Dis 2023. [PMID: 37424166 DOI: 10.1111/1756-185x.14758] [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: 05/01/2023] [Revised: 05/11/2023] [Accepted: 05/17/2023] [Indexed: 07/11/2023]
Abstract
OBJECTIVE Previous studies have shown that human leukocyte antigen (HLA)-B27 induces the accumulation of unfolded proteins in the endoplasmic reticulum (ER) to cause ER stress, resulting in the unfold protein response (UPR), apoptosis and autophagy. However, it is still unknown whether it affects the survival of monocytes. In this study, we attempted to examine the effect of HLA-B27 gene knockout on the proliferation and apoptosis of THP-1 monocytic cell line and its potential mechanism. METHODS HLA-B27 gene knockout THP-1 cell line was constructed by lentivirus infection, and knockout efficiency was detected by immunofluorescence, quantitative reverse transcription - polymerase chain reaction (qRT-PCR) and western blot. Cell Counting Kit-8 (CCK-8) method and Annexin-V/PI double staining were used to detect the proliferation and apoptosis of the constructed THP-1 cell line, respectively. qRT-PCR was used to detect the effect of HLA-B27 inhibition on the expressions of ER molecular chaperone binding immunoglobulin protein (BiP) and genes about the UPR pathway. The proliferation rate of human BiP protein-stimulated THP-1 cells was detected by CCK-8 method. RESULTS HLA-B27 gene knockout THP-1 cells were successfully constructed by lentivirus infection. Knockout of HLA-B27 effectively promoted the proliferation of THP-1 cells and inhibited the apoptosis induced by cisplatin. qRT-PCR showed that BiP was synchronously increased, while activation of UPR pathway was inhibited. Stimulation with human BiP promoted the proliferation of THP-1 cells in a concentration-dependent manner. CONCLUSIONS HLA-B27 inhibition can promote the proliferation and inhibit the apoptosis of THP-1 cells. The inhibition function may be achieved through promotion of BiP and inhibition of UPR pathway activation.
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Affiliation(s)
- Lian Gui
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jieruo Gu
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Fatica M, D'Antonio A, Novelli L, Triggianese P, Conigliaro P, Greco E, Bergamini A, Perricone C, Chimenti MS. How Has Molecular Biology Enhanced Our Undertaking of axSpA and Its Management. Curr Rheumatol Rep 2023; 25:12-33. [PMID: 36308677 PMCID: PMC9825525 DOI: 10.1007/s11926-022-01092-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2022] [Indexed: 01/11/2023]
Abstract
PURPOSE This review aims at investigating pathophysiological mechanisms in spondyloarthritis (SpA). Analysis of genetic factors, immunological pathways, and abnormalities of bone metabolism lay the foundations for a better understanding of development of the axial clinical manifestations in patients, allowing physician to choose the most appropriate therapeutic strategy in a more targeted manner. RECENT FINDINGS In addition to the contribution of MHC system, findings emerged about the role of non-HLA genes (as ERAP1 and 2, whose inhibition could represent a new therapeutic approach) and of epigenetic mechanisms that regulate the expression of genes involved in SpA pathogenesis. Increasing evidence of bone metabolism abnormalities secondary to the activation of immunological pathways suggests the development of various bone anomalies that are present in axSpA patients. SpA are a group of inflammatory diseases with a multifactorial origin, whose pathogenesis is linked to the genetic predisposition, the action of environmental risk factors, and the activation of immune response. It is now well known how bone metabolism leads to long-term structural damage via increased bone turnover, bone loss and osteoporosis, osteitis, erosions, osteosclerosis, and osteoproliferation. These effects can exist in the same patient over time or even simultaneously. Evidence suggests a cross relationship among innate immunity, autoimmunity, and bone remodeling in SpA, making treatment approach a challenge for rheumatologists. Specifically, treatment targets are consistently increasing as new drugs are upcoming. Both biological and targeted synthetic drugs are promising in terms of their efficacy and safety profile in patients affected by SpA.
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Affiliation(s)
- Mauro Fatica
- Rheumatology, Allergology and Clinical Immunology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Arianna D'Antonio
- Rheumatology, Allergology and Clinical Immunology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Lucia Novelli
- UniCamillus, Saint Camillus International University of Health Sciences, Rome, Italy
| | - Paola Triggianese
- Rheumatology, Allergology and Clinical Immunology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Paola Conigliaro
- Rheumatology, Allergology and Clinical Immunology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Elisabetta Greco
- Rheumatology, Allergology and Clinical Immunology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Alberto Bergamini
- Rheumatology, Allergology and Clinical Immunology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Carlo Perricone
- Rheumatology, Department of Medicine, University of Perugia, Perugia, Italy
| | - Maria Sole Chimenti
- Rheumatology, Allergology and Clinical Immunology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy.
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Zeng L, Yang T, Yang K, Yu G, Li J, Xiang W, Chen H. Efficacy and Safety of Curcumin and Curcuma longa Extract in the Treatment of Arthritis: A Systematic Review and Meta-Analysis of Randomized Controlled Trial. Front Immunol 2022; 13:891822. [PMID: 35935936 PMCID: PMC9353077 DOI: 10.3389/fimmu.2022.891822] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 04/22/2022] [Indexed: 12/20/2022] Open
Abstract
BackgroundModern pharmacological research found that the chemical components of Curcuma longa L. are mainly curcumin and turmeric volatile oil. Several recent randomized controlled trials (RCT) have shown that curcumin improves symptoms and inflammation in patients with arthritis.MethodsPubmed, Cochran Library, CNKI, and other databases were searched to collect the randomized controlled trials (RCTs). Then, the risk of bias of RCTs were assessed and data of RCTs were extracted. Finally, RevMan 5.3 was utilized for meta-analysis.ResultsTwenty-nine (29) RCTs involving 2396 participants and 5 types of arthritis were included. The arthritis included Ankylosing Spondylitis (AS), Rheumatoid Arthritis (RA), Osteoarthritis (OA), Juvenile idiopathic arthritis (JIA) and gout/hyperuricemia. Curcumin and Curcuma longa Extract were administered in doses ranging from 120 mg to 1500 mg for a duration of 4-36 weeks. In general, Curcumin and Curcuma longa Extract showed safety in all studies and improved the severity of inflammation and pain levels in these arthritis patients. However, more RCTs are needed in the future to elucidate the effect of Curcumin and Curcuma longa Extract supplementation in patients with arthritis, including RA, OA, AS and JIA.ConclusionCurcumin and Curcuma longa Extract may improve symptoms and inflammation levels in people with arthritis. However, due to the low quality and small quantity of RCTs, the conclusions need to be interpreted carefully.
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Affiliation(s)
- Liuting Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
- *Correspondence: Hua Chen, ; Liuting Zeng, ; Tiejun Yang, ; Kailin Yang,
| | - Tiejun Yang
- Department of Orthopedics, People’s Hospital of Ningxiang City, Ningxiang City, China
- *Correspondence: Hua Chen, ; Liuting Zeng, ; Tiejun Yang, ; Kailin Yang,
| | - Kailin Yang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha City, China
- *Correspondence: Hua Chen, ; Liuting Zeng, ; Tiejun Yang, ; Kailin Yang,
| | - Ganpeng Yu
- Department of Orthopedics, People’s Hospital of Ningxiang City, Ningxiang City, China
| | - Jun Li
- Department of Orthopedics, People’s Hospital of Ningxiang City, Ningxiang City, China
| | - Wang Xiang
- Department of Rheumatology, The First People's Hospital Changde City, Changde City, China
| | - Hua Chen
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
- *Correspondence: Hua Chen, ; Liuting Zeng, ; Tiejun Yang, ; Kailin Yang,
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Liao HT, Tsai CY, Lai CC, Hsieh SC, Sun YS, Li KJ, Shen CY, Wu CH, Lu CH, Kuo YM, Li TH, Chou CT, Yu CL. The Potential Role of Genetics, Environmental Factors, and Gut Dysbiosis in the Aberrant Non-Coding RNA Expression to Mediate Inflammation and Osteoclastogenic/Osteogenic Differentiation in Ankylosing Spondylitis. Front Cell Dev Biol 2022; 9:748063. [PMID: 35127698 PMCID: PMC8811359 DOI: 10.3389/fcell.2021.748063] [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: 07/27/2021] [Accepted: 11/09/2021] [Indexed: 12/17/2022] Open
Abstract
Ankylosing spondylitis (AS) or radiographic axial spondyloarthritis is a chronic immune-mediated rheumatic disorder characterized by the inflammation in the axial skeleton, peripheral joints, and soft tissues (enthesis, fascia, and ligament). In addition, the extra-skeletal complications including anterior uveitis, interstitial lung diseases and aortitis are found. The pathogenesis of AS implicates an intricate interaction among HLA (HLA-B27) and non-HLA loci [endoplasmic reticulum aminopeptidase 1 (ERAP1), and interleukin-23 receptor (IL23R), gut dysbiosis, immune plasticity, and numerous environmental factors (infections, heavy metals, stress, cigarette smoking, etc.) The latter multiple non-genetic factors may exert a powerful stress on epigenetic regulations. These epigenetic regulations of gene expression contain DNA methylation/demethylation, histone modifications and aberrant non-coding RNAs (ncRNAs) expression, leading to inflammation and immune dysfunctions. In the present review, we shall discuss these contributory factors that are involved in AS pathogenesis, especially the aberrant ncRNA expression and its effects on the proinflammatory cytokine productions (TNF-α, IL-17 and IL-23), T cell skewing to Th1/Th17, and osteoclastogenic/osteogenic differentiation. Finally, some potential investigatory approaches are raised for solving the puzzles in AS pathogenesis.
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Affiliation(s)
- Hsien-Tzung Liao
- Division of Allergy, Immunology and Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
| | - Chang-Youh Tsai
- Division of Allergy, Immunology and Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
- *Correspondence: Chang-Youh Tsai, ; Chia-Li Yu,
| | - Chien-Chih Lai
- Division of Allergy, Immunology and Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
| | - Song-Chou Hsieh
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yi-Syuan Sun
- Division of Allergy, Immunology and Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
| | - Ko-Jen Li
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chieh-Yu Shen
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Cheng-Han Wu
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Cheng-Hsun Lu
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Min Kuo
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Tzu-Hao Li
- Division of Allergy, Immunology and Rheumatology, Taipei, Taiwan
- Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Chung-Tei Chou
- Division of Allergy, Immunology and Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
| | - Chia-Li Yu
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- *Correspondence: Chang-Youh Tsai, ; Chia-Li Yu,
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Kocatürk B, Balık Z, Pişiren G, Kalyoncu U, Özmen F, Özen S. Spondyloarthritides: Theories and beyond. Front Pediatr 2022; 10:1074239. [PMID: 36619518 PMCID: PMC9816396 DOI: 10.3389/fped.2022.1074239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/24/2022] [Indexed: 12/24/2022] Open
Abstract
Spondyloarthritides (SpA) are a family of interrelated rheumatic disorders with a typical disease onset ranging from childhood to middle age. If left untreated, they lead to a severe decrease in patients' quality of life. A succesfull treatment strategy starts with an accurate diagnosis which is achieved through careful analysis of medical symptoms. Classification criterias are used to this process and are updated on a regular basis. Although there is a lack of definite knowledge on the disease etiology of SpA, several studies have paved the way for understanding plausible risk factors and developing treatment strategies. The significant increase of HLA-B27 positivity in SpA patients makes it a strong candidate as a predisposing factor and several theories have been proposed to explain HLA-B27 driven disease progression. However, the presence of HLA-B27 negative patients underlines the presence of additional risk factors. The current treatment options for SpAs are Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), TNF inhibitors (TNFis), Disease-Modifying Anti-Rheumatic Drugs (DMARDs) and physiotherapy yet there are ongoing clinical trials. Anti IL17 drugs and targeted synthetic DMARDs such as JAK inhibitors are also emerging as treatment alternatives. This review discusses the current diagnosis criteria, treatment options and gives an overview of the previous findings and theories to clarify the possible contributors to SpA pathogenesis with a focus on Ankylosing Spondylitis (AS) and enthesitis-related arthritis (ERA).
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Affiliation(s)
- Begüm Kocatürk
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Zeynep Balık
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gaye Pişiren
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Umut Kalyoncu
- Division of Rheumatology, Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Füsun Özmen
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Seza Özen
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Gulino GR, Van Mechelen M, Lories R. Cellular and molecular diversity in spondyloarthritis. Semin Immunol 2021; 58:101521. [PMID: 34763975 DOI: 10.1016/j.smim.2021.101521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 11/03/2021] [Indexed: 12/14/2022]
Abstract
The spondyloarthritides are a cluster of inflammatory rheumatic diseases characterized by different diagnostic entities with heterogeneous phenotypes. The current classification system groups spondyloarthritis patients in two main categories, axial and peripheral spondyloarthritis, providing a framework wherein the clinical picture guides the treatment. However, the heterogeneity of the clinical manifestations of the pathologies, even when residing in the same group, highlights the importance of analyzing the smallest features of each entity to understand how different cellular subsets evolve, what the underlying mechanisms are and what biological markers can be identified and validated to evaluate the stage of disease and the corresponding efficacy of treatments. In this review, we will focus mostly on axial spondyloarthritis, report current knowledge concerning the cellular populations involved in its pathophysiology, and their molecular diversity. We will discuss the implications of such a diversity, and their meaning in terms of patients' stratification.
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Affiliation(s)
- G R Gulino
- Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, Laboratory of Tissue Homeostasis and Disease, KU Leuven, Belgium
| | - M Van Mechelen
- Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, Laboratory of Tissue Homeostasis and Disease, KU Leuven, Belgium; Division of Rheumatology, University Hospitals Leuven, Belgium
| | - R Lories
- Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, Laboratory of Tissue Homeostasis and Disease, KU Leuven, Belgium; Division of Rheumatology, University Hospitals Leuven, Belgium.
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9
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Harjacek M. Immunopathophysiology of Juvenile Spondyloarthritis (jSpA): The "Out of the Box" View on Epigenetics, Neuroendocrine Pathways and Role of the Macrophage Migration Inhibitory Factor (MIF). Front Med (Lausanne) 2021; 8:700982. [PMID: 34692718 PMCID: PMC8526544 DOI: 10.3389/fmed.2021.700982] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 09/06/2021] [Indexed: 12/11/2022] Open
Abstract
Juvenile spondyloarthritis (jSpA) is a an umbrella term for heterogeneous group of related seronegative inflammatory disorders sharing common symptoms. Although it mainly affects children and adolescents, it often remains active during adulthood. Genetic and environmental factors are involved in its occurrence, although the exact underlying immunopathophysiology remains incompletely elucidated. Accumulated evidence suggests that, in affected patients, subclinical gut inflammation caused by intestinal dysbiosis, is pivotal to the future development of synovial-entheseal complex inflammation. While the predominant role of IL17/23 axis, TNF-α, and IL-7 in the pathophysiology of SpA, including jSpA, is firmly established, the role of the cytokine macrophage migration inhibitory factor (MIF) is generally overlooked. The purpose of this review is to discuss and emphasize the role of epigenetics, neuroendocrine pathways and the hypothalamic-pituitary (HPA) axis, and to propose a novel hypothesis of the role of decreased NLRP3 gene expression and possibly MIF in the early phases of jSpA development. The decreased NLRP3 gene expression in the latter, due to hypomethylation of promotor site, is (one of) the cause for inflammasome malfunction leading to gut dysbiosis observed in patients with early jSpA. In addition, we highlight the role of MIF in the complex innate, adaptive cellular and main effector cytokine network, Finally, since treatment of advanced bone pathology in SpA remains an unmet clinical need, I suggest possible new drug targets with the aim to ultimately improve treatment efficacy and long-term outcome of jSpA patients.
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Affiliation(s)
- Miroslav Harjacek
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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10
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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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11
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Liu L, Yuan Y, Zhang S, Xu J, Zou J. Osteoimmunological insights into the pathogenesis of ankylosing spondylitis. J Cell Physiol 2021; 236:6090-6100. [PMID: 33559242 DOI: 10.1002/jcp.30313] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 01/10/2021] [Accepted: 01/25/2021] [Indexed: 12/12/2022]
Abstract
Ankylosing spondylitis (AS) is inflammatory arthritis predominantly affecting the spine, which is involved in the disorders of both immune and skeletal systems. The exact pathogenesis of AS is not fully understood. Osteoimmunology is a new subject of study in inflammatory arthritis, in particular the pathogenic events involved in the cross-regulation of both skeletal and immune systems. In this review, we discuss osteoimmunological and pathological changes of AS in the spine that are characterized by altered osteogenesis and osteolytic bone destruction, accompanied by the changes of the immune system. It was revealed that bone cells like mesenchymal stem cells, osteoblast, and osteoclast in crossing talking with immune cells such as T cells, B cells coregulate to the pathogenesis of AS. Further, an array of cytokines and molecules expressed by both skeletal and immune systems contribute to these complex interplays. Understanding the cellular and molecular mechanisms underlying the pathogenesis of AS will lay a foundation for the exploration of the potential new treatment to AS.
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Affiliation(s)
- Lifei Liu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China.,Department of Rehabilitation, The People's Hospital of Liaoning Province, Shenyang, China
| | - Yu Yuan
- School of Sport and Health, Guangzhou Sport University, Guangzhou, China
| | - Shihua Zhang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Jiake Xu
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Jun Zou
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
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12
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Huang C, Hedl M, Ranjan K, Abraham C. LACC1 Required for NOD2-Induced, ER Stress-Mediated Innate Immune Outcomes in Human Macrophages and LACC1 Risk Variants Modulate These Outcomes. Cell Rep 2020; 29:4525-4539.e4. [PMID: 31875558 DOI: 10.1016/j.celrep.2019.11.105] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 09/17/2019] [Accepted: 11/25/2019] [Indexed: 12/14/2022] Open
Abstract
LACC1 genetic variants are associated with multiple immune-mediated diseases. However, laccase domain containing-1 (LACC1) functions are incompletely defined. We find that upon stimulation of the pattern-recognition receptor (PRR) NOD2, LACC1 localizes to the endoplasmic reticulum (ER) and forms a complex with ER-stress sensors. All three ER-stress branches, PERK, IRE1α, and ATF6, are required for NOD2-induced signaling, cytokines, and antimicrobial pathways in human macrophages. LACC1, and its localization to the ER, is required for these outcomes. Relative to wild-type (WT) LACC1, transfection of the common Val254 and rare Arg284 immune-mediated disease-risk LACC1 variants into HeLa cells and macrophages, as well as macrophages from LACC1 Val254 carriers, shows reduced NOD2-induced ER stress-associated outcomes; these downstream outcomes are restored by rescuing ER stress. Therefore, we identify ER stress to be essential in PRR-induced outcomes in macrophages, define a critical role for LACC1 in these ER stress-dependent events, and elucidate how LACC1 disease-risk variants mediate these outcomes.
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Affiliation(s)
- Chen Huang
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06510, USA
| | - Matija Hedl
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06510, USA
| | - Kishu Ranjan
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06510, USA
| | - Clara Abraham
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06510, USA.
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13
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Lu YP, Zhang XL, Zheng F, Yun C, Zhu C, Cai W, Liu D, Hong X, Li Q, Hu B, Tang D, Yin LH, Dai Y. Quantitative Proteomic Analyses To Reveal the Key Features of Proteins in New Onset Ankylosing Spondylitis Patients. ACS OMEGA 2020; 5:20153-20161. [PMID: 32832769 PMCID: PMC7439379 DOI: 10.1021/acsomega.0c01776] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/08/2020] [Indexed: 05/06/2023]
Abstract
Ankylosing spondylitis (AS) is a chronic immune-mediated disease. Various immune cells play an essential role in the AS pathogenesis. However, the specific pathogenesis of AS has not been well understood. Proteomic profiles of peripheral blood mononuclear cells (PBMCs) were applied to reveal the specific pathogenesis of AS. Quantitative proteomic analyses were performed using liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based methods to investigate the protein profiling of PBMCs from new-onset AS patients (n = 9) and healthy controls (n = 9). We identified 782 differentially expressed proteins (DEPs) and 527 differentially phosphorylated proteins (DPPs) between AS patients and healthy controls. The subcellular location of DEPs and DPPs showed that most of the DEPs were from the cytoplasm (n = 296, 38%), were extracellular (n = 141, 18%), and from the nucleus (n = 114, 15%); most of the DPPs were from the cytoplasm (n = 37, 34%), nucleus (n = 35, 32%), and plasma membrane (n = 10, 9%). We further identified 89 proteins with both expression and phosphorylation differences. The functional annotation of the 89 differentially expressed and phosphorylated proteins enriched in the antigen processing and presentation pathway. Four DEPs with six phosphorylated positions were found in the antigen processing and presentation pathway. The differentially expressed and phosphorylated proteins may be helpful to uncover the pathogenesis of AS. The six AS-specific proteins may serve as candidate markers for AS diagnosis and new treatment targets.
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Affiliation(s)
- Yong-Ping Lu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou CN 510632, China
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology),
University Medical Centre Mannheim, University
of Heidelberg, Mannheim, Baden-Württemberg DE 68135, Germany
| | - Xiao-Li Zhang
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology),
University Medical Centre Mannheim, University
of Heidelberg, Mannheim, Baden-Württemberg DE 68135, Germany
| | - Fengping Zheng
- The First Affiliated Hospital of Southern
University of Science and Technology, the Second Clinical Medical
College of Jinan University, Shenzhen People’s
Hospital, Shenzhen CN 518020, China
| | - Chen Yun
- Department of Nephrology, Charité−Universitätsmedizin Berlin, Campus Mitte, Berlin DE 10117, Germany
| | - Chengxin Zhu
- The First Affiliated Hospital of Southern
University of Science and Technology, the Second Clinical Medical
College of Jinan University, Shenzhen People’s
Hospital, Shenzhen CN 518020, China
| | - Wanxia Cai
- The First Affiliated Hospital of Southern
University of Science and Technology, the Second Clinical Medical
College of Jinan University, Shenzhen People’s
Hospital, Shenzhen CN 518020, China
| | - Dongzhou Liu
- The First Affiliated Hospital of Southern
University of Science and Technology, the Second Clinical Medical
College of Jinan University, Shenzhen People’s
Hospital, Shenzhen CN 518020, China
| | - Xiaoping Hong
- The First Affiliated Hospital of Southern
University of Science and Technology, the Second Clinical Medical
College of Jinan University, Shenzhen People’s
Hospital, Shenzhen CN 518020, China
| | - Qiang Li
- Department of Nephrology, Dongguan Hospital of Traditional Chinese Medicine, Dongguan CN 523000, China
| | - Bo Hu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou CN 510632, China
| | - Donge Tang
- The First Affiliated Hospital of Southern
University of Science and Technology, the Second Clinical Medical
College of Jinan University, Shenzhen People’s
Hospital, Shenzhen CN 518020, China
- . Phone: +86 0755-22942106
| | - Liang-Hong Yin
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou CN 510632, China
| | - Yong Dai
- The First Affiliated Hospital of Southern
University of Science and Technology, the Second Clinical Medical
College of Jinan University, Shenzhen People’s
Hospital, Shenzhen CN 518020, China
- . Phone: +86 0755-22942780
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14
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Liu CH, Chou CT, Chen CH, Chen CH, Yang SY, Ko YA, Wu YT, Wang CC, Liu FC, Yue CT, Hung SC, Tzeng IS, Tsai WC, Lin KI. Aberrant distribution and function of plasmacytoid dendritic cells in patients with ankylosing spondylitis are associated with unfolded protein response. Kaohsiung J Med Sci 2020; 36:441-449. [PMID: 31961055 DOI: 10.1002/kjm2.12184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 12/31/2019] [Indexed: 01/02/2023] Open
Abstract
Although human leucocyte antigen (HLA)-B27 is strongly associated with ankylosing spondylitis (AS), the association of unfolded protein response (UPR) induced by HLA-B27 misfolding in AS remains controversial. Since dendritic cells (DCs) are crucial in induction of AS in HLA-B27-transgenic rats, and plasmacytoid DCs (pDCs) belong to one type of DCs, we here aim to study the relevance of pDCs and UPR in AS. Peripheral pDCs were isolated from 27 HLA-B27(+) AS patients and 37 controls. The bone marrow (BM) and synovium of inflamed hips from AS patients and controls were obtained. We found a significantly higher frequency of pDCs in the peripheral blood, BM, or inflamed synovium of hips, which is associated with the enhanced expression of pDC trafficking molecules, CCR6 and CCL20 in the synovium of AS patients. Functional analysis further revealed that several inflammatory cytokines, including TNFα, IL-6, and IL-23, secreted by pDCs were significantly increased in AS patients as compared with those in controls. Remarkably, protein kinase RNA-like endoplasmic reticulum kinase (PERK) pathway in UPR was up-regulated in pDCs of AS patients. Notably, PERK inhibitor treatment significantly inhibited the enhanced cytokine production by pDCs of AS patients. Further, the extent of PERK activation was significantly associated with the increased disease severity of AS patients. Our data uncover the aberrant distribution and function of pDCs in AS patients. The up-regulated PERK pathway in UPR of pDCs not only contributes to enhanced cytokine production of pDCs, but also is associated with increased disease activity of AS patients.
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Affiliation(s)
- Chin-Hsiu Liu
- Division of Allergy, Immunology and Rheumatology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan.,PhD Program in Translational Medicine, Kaohsiung Medical University and Academia Sinica, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chung-Tei Chou
- Division of Allergy Immunology and Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chen-Hung Chen
- Division of Allergy, Immunology and Rheumatology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Chun-Hsiung Chen
- Division of Allergy, Immunology and Rheumatology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Shii-Yi Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yi-An Ko
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yi-Ting Wu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chih-Chien Wang
- Department of Orthopedics, Tri-Service General Hospital, Taipei, Taiwan
| | - Feng-Cheng Liu
- Division of Allergy Immunology and Rheumatology, Department of Medicine, Tri-Service General Hospital, Taipei, Taiwan
| | - Chung-Tai Yue
- Department of Pathology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Shih-Chieh Hung
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.,Integrative Stem Cell Center, Department of Orthopedics, China Medical University Hospital, Taichung, Taiwan.,Institute of New Drug Development, New Drug Development Center, China Medical University, Taichung, Taiwan
| | - I-Shiang Tzeng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Wen-Chan Tsai
- Division of Allergy, Immunology, and Rheumatology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Kuo-I Lin
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
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15
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Nakamura A, Talukdar A, Nakamura S, Pathan E, Haroon N. Bone formation in axial spondyloarthritis: Is disease modification possible? Best Pract Res Clin Rheumatol 2019; 33:101491. [DOI: 10.1016/j.berh.2020.101491] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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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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17
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The effects of nanocurcumin on Treg cell responses and treatment of ankylosing spondylitis patients: A randomized, double‐blind, placebo‐controlled clinical trial. J Cell Biochem 2019; 121:103-110. [DOI: 10.1002/jcb.28901] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/04/2019] [Accepted: 03/15/2019] [Indexed: 02/06/2023]
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18
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Dendritic cells in the pathogenesis of ankylosing spondylitis and axial spondyloarthritis. Clin Rheumatol 2018; 38:1231-1235. [DOI: 10.1007/s10067-018-4388-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 11/28/2018] [Indexed: 01/01/2023]
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19
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Bai R, Zhang Y, Liu W, Ma C, Chen X, Yang J, Sun D. The Relationship of Ankylosing Spondylitis and Subclinical Atherosclerosis: A Systemic Review and Meta-Analysis. Angiology 2018; 70:492-500. [PMID: 30497278 DOI: 10.1177/0003319718814309] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ruocen Bai
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yanfen Zhang
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wen Liu
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Chunyan Ma
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xin Chen
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jun Yang
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Dandan Sun
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
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20
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Abdolmohammadi K, Pakdel FD, Aghaei H, Assadiasl S, Fatahi Y, Rouzbahani NH, Rezaiemanesh A, Soleimani M, Tayebi L, Nicknam MH. Ankylosing spondylitis and mesenchymal stromal/stem cell therapy: a new therapeutic approach. Biomed Pharmacother 2018; 109:1196-1205. [PMID: 30551369 DOI: 10.1016/j.biopha.2018.10.137] [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: 08/14/2018] [Revised: 10/22/2018] [Accepted: 10/24/2018] [Indexed: 12/17/2022] Open
Abstract
Ankylosing spondylitis (AS) is an inflammatory rheumatoid disease categorized within spondyloarthropathies (SpA) and manifested by chronic spinal arthritis. Several innate and adaptive immune cells and secreted-mediators have been indicated to play a role in AS pathogenesis. Considering the limitations of current therapeutic approaches (NSAIDs, glucocorticoids, DMARDs and biologic drugs), finding new treatments with fewer side effects and high therapeutic potentials are required in AS. Mesenchymal stem cells (MSCs) with considerable immunomodulatory and regenerative properties could be able to attenuate the inflammatory responses and help tissue repair by cell-to-cell contact and secretion of soluble factors. Moreover, MSCs do not express HLA-DR, which renders them a favorable therapeutic choice for transplantation in immune-mediated disorders. In the present review, we describe immunopathogenesis and current treatments restrictions of AS. Afterwards, immunomodulatory properties and applications of MSCs in immune-mediated disorders, as well as recent findings of clinical trials involving mesenchymal stem cell therapy (MSCT) in ankylosing spondylitis, will be discussed in detail. Additional studies are required to investigate several features of MSCT such as cell origin, dosage, administration route and, specifically, the most suitable stage of disease for ideal intervention.
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Affiliation(s)
- Kamal Abdolmohammadi
- Department of Immunology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Stem Cell Biology, Stem Cell Technology Research Center, Tehran, Iran
| | - Fatemeh Dadgar Pakdel
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamideh Aghaei
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Assadiasl
- Molecular Immunology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Fatahi
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Negin Hosseini Rouzbahani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Stem Cell Biology, Stem Cell Technology Research Center, Tehran, Iran; Department of Immunology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Alireza Rezaiemanesh
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Masoud Soleimani
- Department of Stem Cell Biology, Stem Cell Technology Research Center, Tehran, Iran; Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - Mohammad Hossein Nicknam
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Molecular Immunology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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21
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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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22
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Colbert RA, Navid F, Gill T. The role of HLA-B*27 in spondyloarthritis. Best Pract Res Clin Rheumatol 2018; 31:797-815. [PMID: 30509441 DOI: 10.1016/j.berh.2018.07.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 07/20/2018] [Indexed: 02/08/2023]
Abstract
The mechanism by which HLA-B*27 predisposes to spondyloarthritis remains unresolved. Arthritogenic peptides have not been defined in humans and are not involved in experimental models of spondyloarthritis. Aberrant properties of HLA-B*27 can activate the IL-23/IL-17 axis in HLA-B*27 transgenic rats and humans. In HLA-B*27-independent rodent models, spondyloarthritis can be driven by IL-23 triggering entheseal-resident CD4-/CD8- T cells or CD4+ Th17 T cells. These findings point toward noncanonical mechanisms linking HLA-B*27 to the disease and provide a potential explanation for HLA-B*27-negative spondyloarthritis. Gut microbial dysbiosis may be important in the development of spondyloarthritis. HLA-B*27-induced changes in gut microbiota are complex and suggest an ecological model of dysbiosis in rodents. The importance of the IL-23/IL-17 axis in ankylosing spondylitis has been demonstrated by studies showing efficacy of IL-17. Although deciphering the precise role(s) of HLA-B*27 in disease requires further investigation, considerable progress has been made in understanding this complex relationship.
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Affiliation(s)
- Robert A Colbert
- Pediatric Translational Research Branch, NIAMS Intramural Research Program, NIH, USA.
| | - Fatemeh Navid
- Pediatric Translational Research Branch, NIAMS Intramural Research Program, NIH, USA.
| | - Tejpal Gill
- Pediatric Translational Research Branch, NIAMS Intramural Research Program, NIH, USA.
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23
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Regner EH, Ohri N, Stahly A, Gerich ME, Fennimore BP, Ir D, Jubair WK, Görg C, Siebert J, Robertson CE, Caplan L, Frank DN, Kuhn KA. Functional intraepithelial lymphocyte changes in inflammatory bowel disease and spondyloarthritis have disease specific correlations with intestinal microbiota. Arthritis Res Ther 2018; 20:149. [PMID: 30029674 PMCID: PMC6053728 DOI: 10.1186/s13075-018-1639-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 06/01/2018] [Indexed: 01/13/2023] Open
Abstract
Background Dysbiosis occurs in spondyloarthritis (SpA) and inflammatory bowel disease (IBD), which is subdivided into Crohn’s disease (CD) and ulcerative colitis (UC). The immunologic consequences of alterations in microbiota, however, have not been defined. Intraepithelial lymphocytes (IELs) are T cells within the intestinal epithelium that are in close contact with bacteria and are likely to be modulated by changes in microbiota. We examined differences in human gut-associated bacteria and tested correlation with functional changes in IELs in patients with axial SpA (axSpA), CD, or UC, and in controls. Methods We conducted a case-control study to evaluate IELs from pinch biopsies of grossly normal colonic tissue from subjects with biopsy-proven CD or UC, axSpA fulfilling Assessment of SpondyloArthritis International Society (ASAS) criteria and from controls during endoscopy. IELs were harvested and characterized by flow cytometry for cell surface markers. Secreted cytokines were measured by ELISA. Microbiome analysis was by 16S rRNA gene sequencing from rectal swabs. Statistical analyses were performed with the Kruskal-Wallis and Spearman’s rank tests. Results The total number of IELs was significantly decreased in subjects with axSpA compared to those with IBD and controls, likely due to a decrease in TCRβ+ IELs. We found strong, significant negative correlation between peripheral lymphocyte count and IEL number. IELs secreted significantly increased IL-1β in patients with UC, significantly increased IL-17A and IFN-γ in patients with CD, and significantly increased TNF-α in patients with CD and axSpA as compared to other cohorts. For each disease subtype, IELs and IEL-produced cytokines were positively and negatively correlated with the relative abundance of multiple bacterial taxa. Conclusions Our data indicate differences in IEL function among subjects with axSpA, CD, and UC compared to healthy controls. We propose that the observed correlation between altered microbiota and IEL function in these populations are relevant to the pathogenesis of axSpA and IBD, and discuss possible mechanisms. Trial registration ClinicalTrials.gov, NCT02389075. Registered on 17 March 2015. Electronic supplementary material The online version of this article (10.1186/s13075-018-1639-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Emilie H Regner
- Division of Gastroenterology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA.,Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - Neha Ohri
- Division of Rheumatology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA.,Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - Andrew Stahly
- Division of Rheumatology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Mark E Gerich
- Division of Gastroenterology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA.,Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - Blair P Fennimore
- Division of Gastroenterology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA.,Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - Diana Ir
- Division of Infectious Disease, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Widian K Jubair
- Division of Rheumatology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA.,Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - Carsten Görg
- Computational Bioscience Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - Janet Siebert
- Computational Bioscience Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - Charles E Robertson
- Division of Infectious Disease, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Liron Caplan
- Division of Rheumatology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA.,Denver Veterans Affairs Medical Center (Denver VAMC), Denver, CO, USA
| | - Daniel N Frank
- Division of Infectious Disease, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Kristine A Kuhn
- Division of Rheumatology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA. .,Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, USA.
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O'Rourke M, Fearon U, Sweeney CM, Basdeo SA, Fletcher JM, Murphy CC, Canavan M. The pathogenic role of dendritic cells in non-infectious anterior uveitis. Exp Eye Res 2018; 173:121-128. [PMID: 29763582 DOI: 10.1016/j.exer.2018.05.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/09/2018] [Accepted: 05/11/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND Anterior uveitis (AU) is characterised by infiltration of immune cells into the anterior chamber of the eye. Dendritic cells (DC) are professional antigen presenting cells that initiate and promote inflammation. This study aims to characterise DC in AU and to examine the effects of aqueous humor (AqH) on DC maturation and function. METHODS The frequency and phenotype of AU and healthy control (HC) circulating DC was examined. AU and HC AqH was immunostained and assessed by flow cytometry. The effect of AU and HC AqH on DC activation and maturation was examined and subsequent effects on CD4+ T cell proliferation assessed. RESULTS AU peripheral blood demonstrated decreased circulating myeloid and plasmacytoid DC. Within AU AqH, three populations of CD45+ cells were significantly enriched compared to HC; DCs (CD11c+ HLA-DR+), neutrophils (CD15+ CD11c+) and T cells (CD4+ and CD8+). A significant increase in IFNγ, IL8 and IL6 was observed in the AU AqH, which was also significantly higher than that of paired serum. AU AqH induced expression of CD40 and CD80 on DC, which resulted in increased T cell proliferation and the production of GM-CSF, IFNγ and TNFα. CONCLUSION DC are enriched at the site of inflammation in AU. Our data demonstrate an increase in inflammatory mediators in the AU inflamed microenvironment. AU AqH can activate DC, leading to subsequent proliferation and activation of effector T cells. Thus, the AU microenvironment contributes to immune cell responses and intraocular inflammation.
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Affiliation(s)
- M O'Rourke
- Department of Ophthalmology, Royal College of Surgeons in Ireland, Dublin, Ireland.
| | - U Fearon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
| | - C M Sweeney
- Department of Dermatology, St Vincent's University Hospital, Dublin, Ireland
| | - S A Basdeo
- Schools of Biochemistry and Immunology and Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
| | - J M Fletcher
- Schools of Biochemistry and Immunology and Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
| | - C C Murphy
- Department of Ophthalmology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - M Canavan
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
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Rezaiemanesh A, Abdolmaleki M, Abdolmohammadi K, Aghaei H, Pakdel FD, Fatahi Y, Soleimanifar N, Zavvar M, Nicknam MH. Immune cells involved in the pathogenesis of ankylosing spondylitis. Biomed Pharmacother 2018; 100:198-204. [DOI: 10.1016/j.biopha.2018.01.108] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/20/2018] [Accepted: 01/24/2018] [Indexed: 12/25/2022] Open
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Babaie F, Hasankhani M, Mohammadi H, Safarzadeh E, Rezaiemanesh A, Salimi R, Baradaran B, Babaloo Z. The role of gut microbiota and IL-23/IL-17 pathway in ankylosing spondylitis immunopathogenesis: New insights and updates. Immunol Lett 2018; 196:52-62. [DOI: 10.1016/j.imlet.2018.01.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/16/2018] [Accepted: 01/31/2018] [Indexed: 12/16/2022]
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IL-23R and IL-17A polymorphisms correlate with susceptibility of ankylosing spondylitis in a Southwest Chinese population. Oncotarget 2017; 8:70310-70316. [PMID: 29050281 PMCID: PMC5642556 DOI: 10.18632/oncotarget.20319] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 08/04/2017] [Indexed: 02/05/2023] Open
Abstract
The association between the IL-23R and IL-17A polymorphisms and ankylosing spondylitis (AS) in the Southwest Chinese Population is still unclear. The purpose of this study is to detect the association between IL-23R and IL-17A polymorphisms and AS. A case-control study consisting of 486 AS patients and 480 healthy controls was performed. We used the high-resolution melting methods (HRM) to genotype five selected single nucleotide polymorphisms (SNPs), rs6693831, rs7517847, rs1884444, rs10889677 in the IL-23R gene and rs2275913 in the IL-17A gene. Meanwhile, the laboratory indexes were recorded. In this study, patients with genotype CC (p = 8.574E-8) and allele C (p = 3.206E-31) on SNP rs6693831 (IL-23R) showed decreased risk of AS. The genotype TT (p = 4.551E-6) and allele T (p = 0.02) on SNP rs1884444 (IL-23R) showed significant lower risk of AS. Individuals carrying the allele A of rs2275913 showed higher morbidity of AS (p = 0.04). We first detected that rs6693831 and rs1884444 in IL-23R gene and rs2275913 in IL-17A gene have genetic association with AS.
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Hao J, Liu Y, Xu J, Wang W, Wen Y, He A, Fan Q, Guo X, Zhang F. Genome-wide DNA methylation profile analysis identifies differentially methylated loci associated with ankylosis spondylitis. Arthritis Res Ther 2017; 19:177. [PMID: 28743287 PMCID: PMC5526246 DOI: 10.1186/s13075-017-1382-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 07/06/2017] [Indexed: 01/19/2023] Open
Abstract
Background Ankylosing spondylitis (AS) is a chronic rheumatic and autoimmune disease. Little is known about the potential role of DNA methylation in the pathogenesis of AS. This study was undertaken to explore the potential role of DNA methylation in the genetic mechanism of AS. Methods In this study, we compared the genome-wide DNA methylation profiles of peripheral blood mononuclear cells (PBMCs) between five AS patients and five healthy subjects, using the Illumina Infinium HumanMethylation450 BeadChip. Quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR) was performed to validate the relevance of the identified differentially methylated genes for AS, using another independent sample of five AS patients and five healthy subjects. Results Compared with healthy controls, we detected 1915 differentially methylated CpG sites mapped to 1214 genes. The HLA-DQB1 gene achieved the most significant signal (cg14323910, adjusted P = 1.84 × 10–6, β difference = 0.5634) for AS. Additionally, the CpG site cg04777551 of HLA-DQB1 presented a suggestive association with AS (adjusted P = 1.46 × 10–3, β difference = 0.3594). qRT-PCR observed that the mRNA expression level of HLA-DQB1 in AS PBMCs was significantly lower than that in healthy control PBMCs (ratio = 0.48 ± 0.10, P < 0.001). Gene Ontology (GO) and KEGG pathway enrichment analysis of differentially methylated genes identified four GO terms and 10 pathways for AS, functionally related to antigen dynamics and function. Conclusions Our results demonstrated the altered DNA methylation profile of AS and implicated HLA-DQB1 in the development of AS. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1382-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jiangcan Hao
- Key Laboratory of Trace Elements and Endemc Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Yang Liu
- Xi'an No.5 Hospital, Xi'an, People's Republic of China
| | - Jiawen Xu
- Department of Clinical Medicine, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Wenyu Wang
- Key Laboratory of Trace Elements and Endemc Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Yan Wen
- Key Laboratory of Trace Elements and Endemc Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Awen He
- Key Laboratory of Trace Elements and Endemc Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Qianrui Fan
- Key Laboratory of Trace Elements and Endemc Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Xiong Guo
- Key Laboratory of Trace Elements and Endemc Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Feng Zhang
- Key Laboratory of Trace Elements and Endemc Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, People's Republic of China.
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Abstract
PURPOSE OF REVIEW This article highlights and emphasizes how new knowledge of mechanisms linked to the interleukin-23 (IL-23)/IL-17 pathway is relevant to the pathophysiology of axial spondyloarthritis (axSpA) and demonstrates how molecules in IL-23/IL-17 pathway provide novel therapeutic targets for axSpA patients. RECENT FINDINGS Similarly to ankylosing spondylitis (AS), the increased frequency of Th17 cells in nr-axSpA patients underscores the concept that these disorders can be viewed on a spectrum. Recent findings suggest that the contribution of IL-23/IL-17 signaling pathways possibly differs in male and female AS patients. The finding that IL-17 and IL-22 secreting-type 3 innate lymphoid cells are increased in AS patients point to their potential role in the pathogenesis of axSpA. Reports of dysbiosis in the gut microbiome of AS patients support previous work indicating a possible causal relationship between altered gut flora, ileocolonic inflammation and axSpA. Of important clinical relevance are results from clinical trials supporting the efficacy and safety of agents that block IL-12/23 (ustekinumab) and IL-17 (secukinumab and ixekizumab) in AS patients. SUMMARY Recent studies further establish the central position of the IL-23/IL-17 pathway in the pathogenesis of axSpA. Targeting the IL-23/IL-17 pathway appears to be a safe and effective strategy for treatment of axSpA patients.
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Yang L, Wang L, Wang X, Xian CJ, Lu H. A Possible Role of Intestinal Microbiota in the Pathogenesis of Ankylosing Spondylitis. Int J Mol Sci 2016; 17:ijms17122126. [PMID: 27999312 PMCID: PMC5187926 DOI: 10.3390/ijms17122126] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 12/09/2016] [Accepted: 12/14/2016] [Indexed: 12/12/2022] Open
Abstract
Ankylosing spondylitis (AS) is a chronic inflammatory disease primarily affecting the sacroiliac joints and the spine, for which the pathogenesis is thought to be a result of the combination of host genetic factors and environmental triggers. However, the precise factors that determine one’s susceptibility to AS remain to be unraveled. With 100 trillion bacteria residing in the mammalian gut having established a symbiotic relation with their host influencing many aspects of host metabolism, physiology, and immunity, a growing body of evidence suggests that intestinal microbiota may play an important role in AS. Several mechanisms have been suggested to explain the potential role of the microbiome in the etiology of AS, such as alterations of intestinal permeability, stimulation of immune responses, and molecular mimicry. In this review, the existing evidence for the involvement of the microbiome in AS pathogenesis was discussed and the potential of intestinal microbiome-targeting strategies in the prevention and treatment of AS was evaluated.
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Affiliation(s)
- Lianjun Yang
- Academy of Orthopedics of Guangdong Province, Orthopaedic Hospital of Guangdong Province, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
| | - Liping Wang
- Academy of Orthopedics of Guangdong Province, Orthopaedic Hospital of Guangdong Province, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
- Sansom Institute for Health Research and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide SA5001, Australia.
| | - Xin Wang
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane QLD4059, Australia.
| | - Cory J Xian
- Academy of Orthopedics of Guangdong Province, Orthopaedic Hospital of Guangdong Province, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
- Sansom Institute for Health Research and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide SA5001, Australia.
| | - Hai Lu
- Academy of Orthopedics of Guangdong Province, Orthopaedic Hospital of Guangdong Province, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
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