1
|
Mowahedi M, Aramesh A, Khouzani MS, Khouzani MS, Daryanoush S, Samet M, Samadi M. Association of Interleukin-4 Receptor α Chain I50V Gene Variant (rs1805010) and Asthma in Iranian Population: A Case-control Study. Open Respir Med J 2024; 18:e18743064266613. [PMID: 38660682 PMCID: PMC11037512 DOI: 10.2174/0118743064266613231123103523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/09/2023] [Accepted: 10/03/2023] [Indexed: 04/26/2024] Open
Abstract
Background Asthma is one of the respiratory disorders caused by chronic airway inflammation. IL-4 has been identified as one of the participating interleukins in the severity of asthma. Objective A case-control study was conducted to determine the association of rs1805010, a single nucleotide polymorphism in the interleukin 4 receptor α chain, with asthma and immunoglobulin E and IL-17A serum levels in Iranian populations. Methods ELISA was used to investigate the relationship between three different varieties of SNP I50V and serum IL-17A levels, as well as total IgE levels. Based on GINA criteria, patients were classified into mild, moderate, and severe groups based on the association between SNP I50V, IL-17A, and total IgE. In order to analyze the data, the student-t-test and the one-way ANOVA were used. Results The SNP I50V was associated with asthma in a significant way (p = 0.001). IL-17A and total IgE levels were significantly higher in asthmatic patients than in control participants (p 0.05 and p 0.021, respectively), but neither showed any association with SNP I50V in the asthmatic patients. Conclusion Asthma patients have a higher prevalence of the I allele, reflecting the significance of Th2 cells. Although total IgE and IL-17A levels increased in both disease subgroups, total IgE level augmentation correlates directly with disease severity, while IL-17A level enhancement does not.
Collapse
Affiliation(s)
- Masouma Mowahedi
- Abortion Research Center, Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Azam Aramesh
- Thalassemia and Hemophilia Research Center, Shahid Dastgheib Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Marjan Sorkhi Khouzani
- Cellular and Molecular Biology - Genetic Center, Falavarjan Azad University, Isfahan, Iran
| | - Saeed Daryanoush
- Thalassemia and Hemophilia Research Center, Shahid Dastgheib Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Samet
- Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Morteza Samadi
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
2
|
de Queiroz Cavalcanti SA, de Almeida LA, Gasparotto J. Effects of a high saturated fatty acid diet on the intestinal microbiota modification and associated impacts on Parkinson's disease development. J Neuroimmunol 2023; 382:578171. [PMID: 37562163 DOI: 10.1016/j.jneuroim.2023.578171] [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: 06/16/2023] [Revised: 07/28/2023] [Accepted: 08/04/2023] [Indexed: 08/12/2023]
Abstract
Recent research has focused on the link between diet, intestinal microbiota, and the impact of excessive consumption of saturated fatty acids. Saturated fatty acids, found in animal fats, dairy, and processed foods, contribute to dysbiosis, increase intestinal barrier permeability, chronic low-grade inflammation, oxidative stress, and dysfunction of the blood-brain barrier, affecting the central nervous system. High intake of saturated fatty acids is associated with an increased risk of developing Parkinson's disease (PD). Diets low in saturated fats, rich in fibers, promote microbial diversity, improve gut health, and potentially reduce the risk of neurodegenerative diseases like PD.
Collapse
Affiliation(s)
| | - Leonardo Augusto de Almeida
- Instituto de Ciências Biomédicas - Universidade Federal de Alfenas, Rua Gabriel Monteiro da Silva, 700, CEP: 37130-001 Alfenas, Minas Gerais, Brazil
| | - Juciano Gasparotto
- Instituto de Ciências Biomédicas - Universidade Federal de Alfenas, Rua Gabriel Monteiro da Silva, 700, CEP: 37130-001 Alfenas, Minas Gerais, Brazil.
| |
Collapse
|
3
|
Iwaszko M, Biały S, Bogunia-Kubik K. Significance of Interleukin (IL)-4 and IL-13 in Inflammatory Arthritis. Cells 2021; 10:cells10113000. [PMID: 34831223 PMCID: PMC8616130 DOI: 10.3390/cells10113000] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/26/2021] [Accepted: 10/30/2021] [Indexed: 12/12/2022] Open
Abstract
Interleukin (IL)-4 and IL-13 belong to the T helper 2 (Th2) cytokine family, along with IL-3, IL-5, and IL-9. These cytokines are key mediators of allergic inflammation. They have important immunomodulatory activities and exert influence on a wide variety of immune cells, such as B cells, eosinophils, basophils, monocytes, fibroblasts, endothelial cells, airway epithelial cells, smooth muscle cells, and keratinocytes. Recent studies have implicated IL-4 and IL-13 in the development of various autoimmune diseases. Additionally, these cytokines have emerged as potential players in pathogenesis of inflammatory arthritis. Recent findings suggest that the IL-4 and IL-13 might play a significant role in the downregulation of inflammatory processes underlying RA pathology, and beneficially modulate the course of the disease. This review summarizes the biological features of the IL-4 and IL-13 and provides current knowledge regarding the role of these cytokines in inflammatory arthritis.
Collapse
|
4
|
Laageide L, Verhave B, Samkoff L, Looney R, Beck L. Relapsing-remitting multiple sclerosis arising in a patient with atopic dermatitis on dupilumab. JAAD Case Rep 2021; 15:33-35. [PMID: 34401425 PMCID: PMC8349746 DOI: 10.1016/j.jdcr.2021.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Leah Laageide
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York
| | - Brendon Verhave
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York
| | - Lawrence Samkoff
- Department of Neurology, University of Rochester Medical Center, Rochester, New York
| | - Richard Looney
- Department of Medicine, University of Rochester Medical Center, Rochester, New York
| | - Lisa Beck
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York
| |
Collapse
|
5
|
Khella CM, Horvath JM, Asgarian R, Rolauffs B, Hart ML. Anti-Inflammatory Therapeutic Approaches to Prevent or Delay Post-Traumatic Osteoarthritis (PTOA) of the Knee Joint with a Focus on Sustained Delivery Approaches. Int J Mol Sci 2021; 22:8005. [PMID: 34360771 PMCID: PMC8347094 DOI: 10.3390/ijms22158005] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 12/11/2022] Open
Abstract
Inflammation plays a central role in the pathogenesis of knee PTOA after knee trauma. While a comprehensive therapy capable of preventing or delaying post-traumatic osteoarthritis (PTOA) progression after knee joint injury does not yet clinically exist, current literature suggests that certain aspects of early post-traumatic pathology of the knee joint may be prevented or delayed by anti-inflammatory therapeutic interventions. We discuss multifaceted therapeutic approaches that may be capable of effectively reducing the continuous cycle of inflammation and concomitant processes that lead to cartilage degradation as well as those that can simultaneously promote intrinsic repair processes. Within this context, we focus on early disease prevention, the optimal timeframe of treatment and possible long-lasting sustained delivery local modes of treatments that could prevent knee joint-associated PTOA symptoms. Specifically, we identify anti-inflammatory candidates that are not only anti-inflammatory but also anti-degenerative, anti-apoptotic and pro-regenerative.
Collapse
Affiliation(s)
| | | | | | | | - Melanie L. Hart
- G.E.R.N. Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center—Albert-Ludwigs—University of Freiburg, 79085 Freiburg im Breisgau, Germany; (C.M.K.); (J.M.H.); (R.A.); (B.R.)
| |
Collapse
|
6
|
Jiang P, Yue YX, Hong Y, Xie Y, Gao X, Gu CK, Hao HJ, Qin Y, Ding XJ, Song M, Li HF, Zhang X. IL-4Rα Polymorphism Is Associated With Myasthenia Gravis in Chinese Han Population. Front Neurol 2018; 9:529. [PMID: 30042722 PMCID: PMC6048264 DOI: 10.3389/fneur.2018.00529] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 06/13/2018] [Indexed: 12/14/2022] Open
Abstract
Interleukin-4 (IL-4) is a potent growth and differentiation factor for B cells which play a vital role in the pathogenesis of myasthenia gravis (MG). IL-4 exerts its function by binding to three types of IL-4 receptor (IL-4R) complexes. IL-4Rα is the key component of the IL-4R complex. We hypothesize that polymorphism of IL-4Rα gene may be associated with the susceptibility and severity of MG. A Chinese cohort of 480 MG patients and 487 healthy controls were recruited. Polymorphisms of IL-4Rα gene were determined with SNPscan™ methods and compared between MG and control groups, as well as among MG subgroups. Rs2107356 and rs1805010 were found to be associated with adult thymoma associated MG, and rs1801275 was found to be associated with adult non-thymoma AChR-Ab positive MG. We did not found association between IL-4Rα polymorphism and the severity of MG. Genetic variations of IL-4Rα were found associated with the susceptibility of MG in Chinese Han population.
Collapse
Affiliation(s)
- Ping Jiang
- Department of Neurology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yao-Xian Yue
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Yu Hong
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Yanchen Xie
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xiang Gao
- Department of Neurology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chuan-Kai Gu
- ICU, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hong-Jun Hao
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Yue Qin
- Department of Neurology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiao-Jun Ding
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Min Song
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Hai-Feng Li
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Xu Zhang
- Department of Neurology, Affiliated Hospital of Qingdao University, Qingdao, China
| |
Collapse
|
7
|
Kondo Y, Yokosawa M, Kaneko S, Furuyama K, Segawa S, Tsuboi H, Matsumoto I, Sumida T. Review: Transcriptional Regulation of CD4+ T Cell Differentiation in Experimentally Induced Arthritis and Rheumatoid Arthritis. Arthritis Rheumatol 2018; 70:653-661. [PMID: 29245178 PMCID: PMC5947164 DOI: 10.1002/art.40398] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 12/05/2017] [Indexed: 12/13/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disorder characterized by chronic inflammation of the joint synovium and infiltration by activated inflammatory cells. CD4+ T cells form a large proportion of the inflammatory cells invading the synovial tissue, and are involved in the RA pathologic process. In general, CD4+ T cells differentiate into various T helper cell subsets and acquire the functional properties to respond to specific pathogens, and also mediate some autoimmune disorders such as RA. Because the differentiation of T helper cell subsets is determined by the expression of specific transcription factors in response to the cytokine environment, these transcription factors are considered to have a role in the pathology of RA. Treg cells control an excess of T cell–mediated immune response, and the transcription factor FoxP3 is critical for the differentiation and function of Treg cells. Treg cell dysfunction can result in the development of systemic autoimmunity. In this review, we summarize how the expression of transcription factors modulates T helper cell immune responses and the development of autoimmune diseases, especially in RA. Understanding the role of transcription factors in the pathogenesis of autoimmunity may lead to novel therapeutic strategies to control the differentiation and function of both T helper cells and Treg cells.
Collapse
|
8
|
Noack M, Ndongo-Thiam N, Miossec P. Interaction among activated lymphocytes and mesenchymal cells through podoplanin is critical for a high IL-17 secretion. Arthritis Res Ther 2016; 18:148. [PMID: 27338729 PMCID: PMC4917941 DOI: 10.1186/s13075-016-1046-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/09/2016] [Indexed: 02/08/2023] Open
Abstract
Background During chronic inflammation, immune cells, notably Th17 cells, infiltrate the inflammatory site and interact with local mesenchymal cells. Applied to rheumatoid arthritis (RA), the aim is to study the interactions between synoviocytes and peripheral blood mononuclear cells (PBMC) with a focus on the Th17 pathway and to identify a mechanism which leads to high IL-17 secretion with an interest on podoplanin. Methods PBMC from healthy donors and RA patients were co-cultured with RA synoviocytes during 48 h, in the presence or not of phytohemagglutinin. An antibody against podoplanin was used in co-culture. Cytokine production (IL-6, IL-1β and IL-17) was measured by ELISA and cell staining (CD3, CD4, IL-17 and podoplanin) by flow cytometry. Results In control conditions, IL-6 and IL-1β production was increased in PBMC-synoviocyte co-culture compared to PBMC alone (p = 0.02). No additional effect was observed with PBMC activation. Flow cytometry analysis showed no difference in the percentage of Th17 cells in activated PBMC alone or with synoviocytes (p = 0.4), indicating that Th17 differentiation requires only T cell activation. Conversely, IL-17 production was highly increased in co-cultures with activated PBMC vs. activated PBMC alone (p = 0.002). Transwell experiments confirm that cell-cell contact was critical for IL-17 secretion. The incubation of either PBMC or synoviocytes with an anti-podoplanin antibody decreased IL-17 secretion by 60 % (p = 0.008). Conclusions Interactions between resting PBMC and synoviocytes are sufficient to induce IL-6 and IL-1β production. Both PBMC activation and cell interactions are needed to induce a high IL-17 secretion. Podoplanin contributes at the level of both lymphocytes and synoviocytes.
Collapse
Affiliation(s)
- Mélissa Noack
- Immunogenomics and Inflammation Research Unit, EA 4130, Edouard Herriot Hospital, Hospices Civils de Lyon and University Claude Bernard Lyon 1, Place d'Arsonval, Lyon, 69003, France
| | - Ndiémé Ndongo-Thiam
- Immunogenomics and Inflammation Research Unit, EA 4130, Edouard Herriot Hospital, Hospices Civils de Lyon and University Claude Bernard Lyon 1, Place d'Arsonval, Lyon, 69003, France
| | - Pierre Miossec
- Immunogenomics and Inflammation Research Unit, EA 4130, Edouard Herriot Hospital, Hospices Civils de Lyon and University Claude Bernard Lyon 1, Place d'Arsonval, Lyon, 69003, France.
| |
Collapse
|
9
|
Genetic variants within immune-modulating genes influence the risk of developing rheumatoid arthritis and anti-TNF drug response: a two-stage case-control study. Pharmacogenet Genomics 2016; 25:432-43. [PMID: 26111149 DOI: 10.1097/fpc.0000000000000155] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic autoimmune disease that arises as a result of the interaction between genetic and environmental factors. A growing body of research suggests that genetic variants within immune-related genes can influence the risk of developing the disease and affect drug response. MATERIALS AND METHODS To test this hypothesis, we carried out a comprehensive two-stage case-control study in a White population of 1239 White RA patients and 1229 healthy controls to investigate whether 49 single nucleotide polymorphisms within or near 17 immune-related genes modulate the risk of developing RA and antitumor necrosis factor (anti-TNF) drug response. RESULTS Logistic regression analyses showed that carriers of the IL4rs2070874T and IL4rs2243250T and IL8RBrs1126580A alleles or the IL8RBrs2230054C/C genotype had a significantly increased risk of developing RA [odds ratio (OR)=1.37, 95% confidence interval (CI) 1.13-1.67, P=0.0016; OR=1.24, 95% CI 1.03-1.49, P=0.020; OR=1.23, 95% CI 1.08-1.41, P=0.002 and OR=1.19, 95% CI 1.04-1.36, P=0.01, respectively]. The association of the IL4 variants was further supported by a meta-analysis including 7150 individuals (P =0.0010), whereas the involvement of the IL8RB locus in determining the susceptibility to RA was also supported by gene-gene interaction analyses that identified significant two-locus and three-locus interaction models including IL8RB variants that act synergistically to increase the risk of the disease (P=0.014 and 0.018). Interestingly, we also found that patients harbouring the IFNGrs2069705C allele showed a significantly better response to anti-TNF drugs than those patients carrying the wild-type allele (P=0.0075). CONCLUSIONS Our data suggest that IL4 and IL8RB loci may have a small-effect genetic impact on the risk of developing RA, whereas IFNG might be involved in modulating the response to anti-TNF drugs.
Collapse
|
10
|
McCormick SM, Heller NM. Commentary: IL-4 and IL-13 receptors and signaling. Cytokine 2015; 75:38-50. [PMID: 26187331 PMCID: PMC4546937 DOI: 10.1016/j.cyto.2015.05.023] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 05/16/2015] [Accepted: 05/21/2015] [Indexed: 12/21/2022]
Abstract
Interleukin (IL)-4 and IL-13 were discovered approximately 30years ago and were immediately linked to allergy and atopic diseases. Since then, new roles for IL-4 and IL-13 and their receptors in normal gestation, fetal development and neurological function and in the pathogenesis of cancer and fibrosis have been appreciated. Studying IL-4/-13 and their receptors has revealed important clues about cytokine biology and led to the development of numerous experimental therapeutics. Here we aim to highlight new discoveries and consolidate concepts in the field of IL-4 and IL-13 structure, receptor regulation, signaling and experimental therapeutics.
Collapse
Affiliation(s)
- Sarah M McCormick
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States
| | - Nicola M Heller
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States; Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States.
| |
Collapse
|
11
|
Acerbi E, Zelante T, Narang V, Stella F. Gene network inference using continuous time Bayesian networks: a comparative study and application to Th17 cell differentiation. BMC Bioinformatics 2014; 15:387. [PMID: 25495206 PMCID: PMC4267461 DOI: 10.1186/s12859-014-0387-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 11/17/2014] [Indexed: 12/17/2022] Open
Abstract
Background Dynamic aspects of gene regulatory networks are typically investigated by measuring system variables at multiple time points. Current state-of-the-art computational approaches for reconstructing gene networks directly build on such data, making a strong assumption that the system evolves in a synchronous fashion at fixed points in time. However, nowadays omics data are being generated with increasing time course granularity. Thus, modellers now have the possibility to represent the system as evolving in continuous time and to improve the models’ expressiveness. Results Continuous time Bayesian networks are proposed as a new approach for gene network reconstruction from time course expression data. Their performance was compared to two state-of-the-art methods: dynamic Bayesian networks and Granger causality analysis. On simulated data, the methods comparison was carried out for networks of increasing size, for measurements taken at different time granularity densities and for measurements unevenly spaced over time. Continuous time Bayesian networks outperformed the other methods in terms of the accuracy of regulatory interactions learnt from data for all network sizes. Furthermore, their performance degraded smoothly as the size of the network increased. Continuous time Bayesian networks were significantly better than dynamic Bayesian networks for all time granularities tested and better than Granger causality for dense time series. Both continuous time Bayesian networks and Granger causality performed robustly for unevenly spaced time series, with no significant loss of performance compared to the evenly spaced case, while the same did not hold true for dynamic Bayesian networks. The comparison included the IRMA experimental datasets which confirmed the effectiveness of the proposed method. Continuous time Bayesian networks were then applied to elucidate the regulatory mechanisms controlling murine T helper 17 (Th17) cell differentiation and were found to be effective in discovering well-known regulatory mechanisms, as well as new plausible biological insights. Conclusions Continuous time Bayesian networks were effective on networks of both small and large size and were particularly feasible when the measurements were not evenly distributed over time. Reconstruction of the murine Th17 cell differentiation network using continuous time Bayesian networks revealed several autocrine loops, suggesting that Th17 cells may be auto regulating their own differentiation process.
Collapse
Affiliation(s)
- Enzo Acerbi
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4 138648, Singapore.
| | | | | | | |
Collapse
|
12
|
The effect of IL-4 gene polymorphisms on cytokine production in patients with chronic periodontitis and in healthy controls. Mediators Inflamm 2014; 2014:185757. [PMID: 25530681 PMCID: PMC4229963 DOI: 10.1155/2014/185757] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/24/2014] [Accepted: 06/25/2014] [Indexed: 11/17/2022] Open
Abstract
Chronic periodontitis (CP) is an inflammatory disease of the teeth-supporting tissues in which genetic predisposition, dental plaque bacteria, and immune mechanisms all play important roles. The aim of this study was to evaluate the occurrence of IL-4 gene polymorphisms in chronic periodontitis and to investigate the association between polymorphisms and cytokines production after bacterial stimulation. Sixty-two subjects (47 CP patients and 15 healthy controls) with detected two polymorphisms in the IL-4 gene (-590C/T and intron 3 VNTR) were examined. Production of cytokines (IL-1α, IL-1β, IL-4, IL-5, IL-6, IL-10, IL-17, TNFα, INFγ, and VEGF) was studied after in vitro stimulation of isolated peripheral blood by mitogens (Pokeweed mitogen, Concanavalin A), dental plaque bacteria (Aggregatibacter actinomycetemcomitans, Tannerella forsythia, Porphyromonas gingivalis, and Prevotella intermedia), and Heat Shock Protein (HSP) 70 by the Luminex multiplex cytokine analysis system. The results were correlated with IL-4 genotypes in patients with CP and healthy controls. The mononuclear cells isolated from peripheral blood of CP patients with selected IL-4 polymorphisms significantly altered the production of IFNγ, IL-10, IL-1β, IL-1α, TNFα, and IL-6 after stimulation by HSP 70 or selected bacteria (from P < 0.001 to P < 0.05). IL-4 gene polymorphisms may influence the function of mononuclear cells to produce not only interleukin-4 but also other cytokines, especially in patients with CP.
Collapse
|
13
|
Yadegari M, Orazizadeh M, Hashemitabar M, Khodadadi A. Protective effects of interleukin-4 on tissue destruction and morphological changes of bovine nasal chondrocytes in vitro. IRANIAN BIOMEDICAL JOURNAL 2014; 17:187-93. [PMID: 23999714 DOI: 10.6091/ibj.1219.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Previous studies have shown that some cytokines have protective effects on cartilage in joint diseases. In the current study, effects of IL-4 against morphological changes and tissue degradation induced by IL-1α on bovine nasal cartilage (BNC) explants were investigated. METHODS Fresh BNC samples were prepared from a slaughterhouse under sterile conditions. BNC explants culture was treated with both IL-lα (10 ng/ml) and IL-4 (50 ng/ml) at the same time for 28 days. The morphological characteristics of explants were assessed by using histology techniques and invert microscopy. Matrix metalloproteinase-1 (MMP-1) production was assessed within different days by using Western blotting. RESULTS IL-lα induced prominent cartilage morphology degradation. The pro and active form of MMP-1 band substantially increased at day 21 of culture. In the presence of both IL-lα and IL-4, chondrocytes preserved their ordinary normal phenotype with intact extracellular matrix. In addition, a significant reduction in pro-MMP-1and inhibition of active MMP-1 was seen. CONCLUSION In conclusion, IL-4 could be regarded as a potential candidate in cartilage protecting against the degradation changes of IL-lα. It seems that the preservation effect of IL-4 is associated with significant reduction of MMP-1.
Collapse
Affiliation(s)
- Maryam Yadegari
- Dept. of Anatomical Sciences, Cellular and Molecular Research Center (CMRC), Ahvaz Jundishapur University of Medical Sciences, Faculty of Medicine, Ahvaz, Iran.
| | | | | | | |
Collapse
|
14
|
Bank S, Skytt Andersen P, Burisch J, Pedersen N, Roug S, Galsgaard J, Ydegaard Turino S, Broder Brodersen J, Rashid S, Kaiser Rasmussen B, Avlund S, Bastholm Olesen T, Jürgen Hoffmann H, Kragh Thomsen M, Østergaard Thomsen V, Frydenberg M, Andersen Nexø B, Sode J, Vogel U, Andersen V. Polymorphisms in the inflammatory pathway genes TLR2, TLR4, TLR9, LY96, NFKBIA, NFKB1, TNFA, TNFRSF1A, IL6R, IL10, IL23R, PTPN22, and PPARG are associated with susceptibility of inflammatory bowel disease in a Danish cohort. PLoS One 2014; 9:e98815. [PMID: 24971461 PMCID: PMC4074037 DOI: 10.1371/journal.pone.0098815] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 05/07/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The inflammatory bowel diseases (IBD), Crohn's disease (CD) and ulcerative colitis (UC), result from the combined effects of susceptibility genes and environmental factors. Polymorphisms in genes regulating inflammation may explain part of the genetic heritage. METHODS Using a candidate gene approach, 39 mainly functional single nucleotide polymorphisms (SNPs) in 26 genes regulating inflammation were assessed in a clinical homogeneous group of severely diseased patients consisting of 624 patients with CD, 411 patients with UC and 795 controls. The results were analysed using logistic regression. RESULTS Sixteen polymorphisms in 13 genes involved in regulation of inflammation were associated with risk of CD and/or UC (p ≤ 0.05). The polymorphisms TLR2 (rs1816702), NFKB1 (rs28362491), TNFRSF1A (rs4149570), IL6R (rs4537545), IL23R (rs11209026) and PTPN22 (rs2476601) were associated with risk of CD and the polymorphisms TLR2 (rs1816702), TLR4 (rs1554973 and rs12377632), TLR9 (rs352139), LY96 (rs11465996), NFKBIA (rs696), TNFA (rs1800629), TNFRSF1A (rs4149570), IL10 (rs3024505), IL23R (rs11209026), PTPN22 (rs2476601) and PPARG (rs1801282) were associated with risk of UC. When including all patients (IBD) the polymorphisms TLR2 (rs4696480 and rs1816702), TLR4 (rs1554973 and rs12377632), TLR9 (rs187084), TNFRSF1A (rs4149570), IL6R (rs4537545), IL10 (rs3024505), IL23R (rs11209026) and PTPN22 (rs2476601) were associated with risk. After Bonferroni correction for multiple testing, both the homozygous and the heterozygous variant genotypes of IL23R G>A(rs11209026) (OR(CD,adj): 0.38, 95% CI: 0.21-0.67, p = 0.03; OR(IBD,adj) 0.43, 95% CI: 0.28-0.67, p = 0.007) and PTPN22 1858 G>A(rs2476601) (OR(CD,unadj) 0.54, 95% CI: 0.41-0.72, p = 7*10-4; OR(IBD,unadj): 0.61, 95% CI: 0.48-0.77, p = 0.001) were associated with reduced risk of CD. CONCLUSION The biological effects of the studied polymorphisms suggest that genetically determined high inflammatory response was associated with increased risk of CD. The many SNPs found in TLRs suggest that the host microbial composition or environmental factors in the gut are involved in risk of IBD in genetically susceptible individuals.
Collapse
Affiliation(s)
- Steffen Bank
- Medical Department, Viborg Regional Hospital, Viborg, Denmark
- Biomedicine, University of Aarhus, Aarhus, Denmark
| | - Paal Skytt Andersen
- Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - Johan Burisch
- Department of Gastroenterology, Herlev Hospital, Herlev, Denmark
| | - Natalia Pedersen
- Department of Gastroenterology, Herlev Hospital, Herlev, Denmark
| | - Stine Roug
- Department of Gastroenterology, Hvidovre Hospital, Hvidovre, Denmark
| | | | | | | | - Shaista Rashid
- Medical Department, Bispebjerg Hospital, Bispebjerg, Denmark
| | | | - Sara Avlund
- Medical Department V, Aarhus University Hospital, Aarhus, Denmark
| | | | - Hans Jürgen Hoffmann
- Department of Respiratory Diseases B, Institute for Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Morten Frydenberg
- Section of Biostatistics, Department of Public health, Aarhus University, Aarhus, Denmark
| | | | - Jacob Sode
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Clinical Biochemistry, Immunology & Genetics, Statens Serum Institut, Copenhagen, Denmark
- Department of Rheumatology, Frederiksberg Hospital, Frederiksberg, Denmark
| | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Vibeke Andersen
- Medical Department, Viborg Regional Hospital, Viborg, Denmark
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Organ Centre, Hospital of Southern Jutland Aabenraa, Aabenraa, Denmark
- OPEN Odense Patient data Explorative Network, Odense University Hospital, Odense, Denmark
| |
Collapse
|
15
|
Tavasolian F, Abdollahi E, Samadi M. Association of the IL4R single-nucleotide polymorphism I50V with recurrent spontaneous abortion (RSA). J Assist Reprod Genet 2014; 31:851-6. [PMID: 24803421 DOI: 10.1007/s10815-014-0234-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 04/04/2014] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Recurrent spontaneous abortion (RSA) is defined as three or more consecutive abortions before the 20th week of gestation. There is increasing evidence to support an immunological mechanism for the occurrence of RSA. The purpose of our study was to examine whether single-nucleotide polymorphisms (SNPs) of the interleukin-4 receptor gene IL4R influence susceptibility to, recurrent spontaneous abortion. MATERIALS AND METHODS This is a case-control study. We recruited 200 patients with RSA (case group) using established diagnostic criteria and 200, normal individuals (control group) at the fertility and infertility center in Yazd city and Isfahan city during 2012 to 2013. We screened the I50V variant in IL-4R in patients and controls by PCR-RFLF method, and we performed an association analysis between I50V variant and RSA.the data was analyzed by spss 16 software using Chi-square test. RESULTS No differences in the genotype and allele frequencies of the I50V SNPs were identified between patients with RSA and healthy controls. CONCLUSIONS The frequency of SNP in IL-4 receptor (I50V) in patients with recurrent spontaneous abortion did not differ significantly compared with the control group. Analysis of IL4R SNP haplotypes or complex alleles suggested no dominant protection in patients with RSA.
Collapse
Affiliation(s)
- Fataneh Tavasolian
- Department of Immunology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | | |
Collapse
|
16
|
Leipe J, Schramm MA, Prots I, Schulze-Koops H, Skapenko A. Increased Th17 cell frequency and poor clinical outcome in rheumatoid arthritis are associated with a genetic variant in the IL4R gene, rs1805010. Arthritis Rheumatol 2014; 66:1165-75. [PMID: 24782180 DOI: 10.1002/art.38343] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Accepted: 12/26/2013] [Indexed: 01/31/2023]
Abstract
OBJECTIVE The minor allele of the IL4R gene single-nucleotide polymorphism, rs1805010, confers impaired interleukin-4 (IL-4) signaling and has been associated with an aggressive destructive course of rheumatoid arthritis (RA). IL-4 inhibits the development of Th17 cells, a cell population recently identified as being prominent in RA patients and being associated with cartilage and bone destruction. The purpose of the present study was to investigate whether rs1805010 modulates Th17 cell development and, hence, subsequent clinical outcome in RA. METHODS A total of 90 patients with early, active RA (mean ± SD Disease Activity Score in 28 joints 4.6 ± 1.1) and 39 control subjects (24 healthy subjects and 15 patients with osteoarthritis [OA]) were genotyped. Serum levels of IL-17 and IL-22 as well as frequencies of Th17 cells were analyzed by enzyme-linked immunosorbent assay and flow cytometry. Clinical and radiographic data were collected and evaluated at baseline and 1 year after disease onset. RESULTS Twenty-six percent of the RA patients were homozygous for the major allele of rs1805010, 60% were heterozygous, and 14% were homozygous for the minor allele. The RA patients who were homozygous for the minor allele demonstrated significantly higher clinical activity associated with the presence of erosions after 1 year of followup as compared to the other RA patients. The inhibitory effect of IL-4 on Th17 cell development in these patients was significantly less prominent. Accordingly, the frequencies of Th17 cells and serum levels of IL-17 and IL-22 were significantly increased. CONCLUSION The data indicate that the rs1805010 minor allele contributes to increased Th17 cell frequency, enhanced clinical activity, and accelerated radiographic progression in RA by rendering CD4 T cells from RA patients insensitive to the attenuating effect of IL-4 on Th17 cell development.
Collapse
Affiliation(s)
- Jan Leipe
- Medizinische Klinik and Poliklinik IV, University of Munich, Munich, Germany
| | | | | | | | | |
Collapse
|
17
|
Bank S, Andersen PS, Burisch J, Pedersen N, Roug S, Galsgaard J, Turino SY, Brodersen JB, Rashid S, Rasmussen BK, Avlund S, Olesen TB, Hoffmann HJ, Thomsen MK, Thomsen VØ, Frydenberg M, Nexø BA, Sode J, Vogel U, Andersen V. Associations between functional polymorphisms in the NFκB signaling pathway and response to anti-TNF treatment in Danish patients with inflammatory bowel disease. THE PHARMACOGENOMICS JOURNAL 2014; 14:526-34. [PMID: 24776844 DOI: 10.1038/tpj.2014.19] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 03/01/2014] [Accepted: 03/10/2014] [Indexed: 12/30/2022]
Abstract
Antitumor necrosis factor-α (TNF-α) is used for treatment of severe cases of inflammatory bowel diseases (IBD), including Crohn's disease (CD) and ulcerative colitis (UC). However, one-third of the patients do not respond to the treatment. Genetic markers may predict individual response to anti-TNF therapy. Using a candidate gene approach, 39 mainly functional single nucleotide polymorphisms (SNPs) in 26 genes regulating inflammation were assessed in 738 prior anti-TNF-naive Danish patients with IBD. The results were analyzed using logistic regression (crude and adjusted for age, gender and smoking status). Nineteen functional polymorphisms that alter the NFκB-mediated inflammatory response (TLR2 (rs3804099, rs11938228, rs1816702, rs4696480), TLR4 (rs5030728, rs1554973), TLR9 (rs187084, rs352139), LY96 (MD-2) (rs11465996), CD14 (rs2569190), MAP3K14 (NIK) (rs7222094)), TNF-α signaling (TNFA (TNF-α) (rs361525), TNFRSF1A (TNFR1) (rs4149570), TNFAIP3(A20) (rs6927172)) and other cytokines regulated by NFκB (IL1B (rs4848306), IL1RN (rs4251961), IL6 (rs10499563), IL17A (rs2275913), IFNG (rs2430561)) were associated with response to anti-TNF therapy among patients with CD, UC or both CD and UC (P ⩽ 0.05). In conclusion, the results suggest that polymorphisms in genes involved in activating NFκB through the Toll-like receptor (TLR) pathways, genes regulating TNF-α signaling and cytokines regulated by NFκB are important predictors for the response to anti-TNF therapy among patients with IBD. Genetically strong TNF-mediated inflammatory response was associated with beneficial response. In addition, the cytokines IL-1β, IL-6 and IFN-γ may be potential targets for treating patients with IBD who do not respond to anti-TNF therapy. These findings should be examined in independent cohorts before these results are applied in a clinical setting.
Collapse
Affiliation(s)
- S Bank
- 1] Medical Department, Viborg Regional Hospital, Viborg, Denmark [2] Biomedicine, University of Aarhus, Aarhus, Denmark
| | - P S Andersen
- Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - J Burisch
- Department of Gastroenterology, Herlev Hospital, Herlev, Denmark
| | - N Pedersen
- Department of Gastroenterology, Herlev Hospital, Herlev, Denmark
| | - S Roug
- Department of Gastroenterology, Hvidovre Hospital, Hvidovre, Denmark
| | - J Galsgaard
- Medical Department, Køge Hospital, Køge, Denmark
| | - S Y Turino
- Medical Department, Hillerød Hospital, Hillerød, Denmark
| | - J B Brodersen
- Medical Department, Sydvestjysk Hospital, Esbjerg, Denmark
| | - S Rashid
- Medical Department, Bispebjerg Hospital, Bispebjerg, Denmark
| | - B K Rasmussen
- Medical Department, Nykøbing Falster Hospital, Nykøbing Falster, Denmark
| | - S Avlund
- Medical Department V, Aarhus University Hospital, Aarhus, Denmark
| | - T B Olesen
- Medical Department, Slagelse Hospital, Slagelse, Denmark
| | - H J Hoffmann
- Department of Respiratory Diseases B, Institute for Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - M K Thomsen
- Department of Clinical Microbiology, Aarhus University Hospital, Aarhus, Denmark
| | - V Ø Thomsen
- International Reference Laboratory of Mycobacteriology, Statens Serum Institut, Copenhagen, Denmark
| | - M Frydenberg
- Section of Biostatistics, Department of Public health, Aarhus University, Aarhus, Denmark
| | - B A Nexø
- Biomedicine, University of Aarhus, Aarhus, Denmark
| | - J Sode
- 1] Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark [2] Clinical Biochemistry, Immunology & Genetics, Statens Serum Institut, Copenhagen, Denmark [3] Department of Rheumatology, Frederiksberg Hospital, Frederiksberg, Denmark
| | - U Vogel
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - V Andersen
- 1] Medical Department, Viborg Regional Hospital, Viborg, Denmark [2] Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark [3] Organ Centre, Hospital of Southern Jutland Aabenraa, Aabenraa, Denmark [4] OPEN Odense Patient data Explorative Network, Odense University Hospital, Odense, Denmark
| |
Collapse
|
18
|
Krabben A, Wilson AG, de Rooy DPC, Zhernakova A, Brouwer E, Lindqvist E, Saxne T, Stoeken G, van Nies JAB, Knevel R, Huizinga TWJ, Toes R, Gregersen PK, van der Helm-van Mil AHM. Association of genetic variants in the IL4 and IL4R genes with the severity of joint damage in rheumatoid arthritis: a study in seven cohorts. ACTA ACUST UNITED AC 2014; 65:3051-7. [PMID: 23983153 DOI: 10.1002/art.38141] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 08/13/2013] [Indexed: 11/05/2022]
Abstract
OBJECTIVE The progression of joint destruction in rheumatoid arthritis (RA) is determined by genetic factors. Changes in IL4 and IL4R genes have been associated with RA severity, but this finding has not been replicated. This study was undertaken to investigate the association between IL4- and IL4R-tagging single-nucleotide polymorphisms (SNPs) and the progression rate of joint damage in RA in a multicohort candidate gene study. METHODS IL4- and IL4R-tagging SNPs (n = 8 and 39, respectively) were genotyped in 600 RA patients for whom 2,846 sets of radiographs of the hands and feet were obtained during 7 years of followup. Subsequently, SNPs significantly associated with the progression of joint damage were genotyped and studied in relation to 3,415 radiographs of 1,953 RA patients; these included data sets from Groningen (The Netherlands), Lund (Sweden), Sheffield (UK), the North American Rheumatoid Arthritis Consortium (US), Wichita (US), and the National Data Bank (US). The relative increase in progression rate per year in the presence of a genotype was determined in each cohort. An inverse variance weighting meta-analysis was performed on the 6 data sets that together formed the replication phase. RESULTS In the discovery phase, none of the IL4 SNPs and 7 of the IL4R SNPs were significantly associated with the joint damage progression rate. In the replication phase, 2 SNPs in the IL4R gene were significantly associated with the joint damage progression rate (rs1805011 [P = 0.02] and rs1119132 [P = 0.001]). CONCLUSION Genetic variants in IL4R were identified, and their association with the progression rate of joint damage in RA was independently replicated.
Collapse
Affiliation(s)
- A Krabben
- Leiden University Medical Center, Leiden, The Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
IL-23R rs11209026 polymorphism modulates IL-17A expression in patients with rheumatoid arthritis. Genes Immun 2011; 13:282-7. [PMID: 22130325 DOI: 10.1038/gene.2011.80] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The interleukin (IL)-17/IL-23 axis is an important pro-inflammatory pathway in rheumatoid arthritis (RA). IL-23 maintains CD4(+) T-helper 17 (Th(17)) cells, whereas IL-12 negates IL-17A production by promoting Th(1)-cell differentiation. We sought evidence for any effect of polymorphisms within the interleukin-23 receptor (IL-23R), IL-12 or IL-21 genes on serum cytokine concentrations in 81 patients with RA. Serum cytokines were measured using bead-based multiplex assays. Targeted cytokines were detected in up to 66% of samples. A subgroup of 48 patients had detectable serum IL-17A. Within this subgroup, patients, homozygous for the IL-23R rs11209026 major allele had significantly higher serum IL-17A concentrations compared with patients with the minor allele (394.51 ± 529.72 pg ml(-1) vs 176.11 ± 277.32 pg ml(-1); P = 0.017). There was no significant difference in any of the cytokine concentrations examined in patients positive for the minor allele vs homozygosity for the major allele of IL-12B rs3213337, IL-12Bpro rs17860508 and IL-21 rs6822844. Our results suggest the IL-23R Arg381Gln substitution may influence serum IL-17A concentrations. In patients with the 381Gln allele higher IL-23 concentrations may be needed to produce similar IL-17A concentrations to those in patients with the 381Arg allele. This suggests altered IL-23R function in patients with the minor allele and warrants further functional studies.
Collapse
|
20
|
Wilke CM, Bishop K, Fox D, Zou W. Deciphering the role of Th17 cells in human disease. Trends Immunol 2011; 32:603-11. [PMID: 21958759 DOI: 10.1016/j.it.2011.08.003] [Citation(s) in RCA: 173] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 08/07/2011] [Accepted: 08/10/2011] [Indexed: 12/14/2022]
Abstract
Since their identification in 2005, T helper (Th)17 cells have been proposed to play important roles in several human diseases, including various autoimmune conditions, allergy, the development and progression of tumors, and the acceptance or rejection of transplanted organs and bone marrow. Focusing on human studies, here we review recent developments regarding Th17 biology and function in each of these fields. Th17 cells actively participate in the pathogenesis of autoimmune disease, allergy and transplantation rejection. Th17 cells contribute to protective antitumor immunity in human epithelial malignancy, whereas Th17-associated cytokines may also be associated with tumor initiation and growth in the context of chronic inflammation and infection. Also discussed is how the in vivo plasticity of Th17 cells may be an important feature of Th17 cell biology in human disease.
Collapse
Affiliation(s)
- Cailin Moira Wilke
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | | | | | | |
Collapse
|
21
|
Marder W, Khalatbari S, Myles JD, Hench R, Yalavarthi S, Lustig S, Brook R, Kaplan MJ. Interleukin 17 as a novel predictor of vascular function in rheumatoid arthritis. Ann Rheum Dis 2011; 70:1550-5. [PMID: 21727237 DOI: 10.1136/ard.2010.148031] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is associated with enhanced cardiovascular (CV) risk and subclinical vascular disease. The proinflammatory milieu has been linked to premature atherosclerosis and endothelial dysfunction in RA. While interleukin 17 (IL-17) is considered pathogenic in RA, its role in determining vascular dysfunction in this disease has not been systematically assessed. OBJECTIVES To analyse candidate variables that might determine endothelial function in various vascular territories in a cohort of patients with RA receiving treatment with biological agents, with minimal traditional CV risk factors and low disease activity score. METHODS Patients with RA (n=50) receiving stable treatment with biological agents underwent measurement of conduit artery endothelial function by brachial artery flow-mediated dilatation; arterial compliance by pulse wave velocity (PWV) assessment; and endothelium-dependent microvascular testing with Endo-Pat2000 device to assess the reactive hyperaemia index (RHI). IL-17 was quantified by ELISA and disease activity was assessed by 28-joint count Disease Activity Score. RESULTS IL-17 was the main determinant of lower RHI in univariate and multivariate analysis. Traditional and non-traditional CV risk variables determined PWV, with a significant positive association with IL-17 in univariate and multivariate analysis. In contrast, conduit endothelial function was mainly determined by rheumatoid factor titres in univariate and multivariate analysis. Anti-cyclic citrullinated peptide titres, specific disease-modifying antirheumatic drugs or biological agents and disease activity did not determine vascular function. CONCLUSION In patients with RA treated with biological agents, IL-17 is a main predictor of microvascular function and arterial compliance. This study suggests that IL-17 may play a significant role in development of endothelial dysfunction and cardiovascular disease in RA.
Collapse
Affiliation(s)
- Wendy Marder
- University of Michigan Medical School, Ann Arbor, Michigan 48109, USA
| | | | | | | | | | | | | | | |
Collapse
|