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Liu X, Wang Z, Qian H, Tao W, Zhang Y, Hu C, Mao W, Guo Q. Natural medicines of targeted rheumatoid arthritis and its action mechanism. Front Immunol 2022; 13:945129. [PMID: 35979373 PMCID: PMC9376257 DOI: 10.3389/fimmu.2022.945129] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease involving joints, with clinical manifestations of joint inflammation, bone damage and cartilage destruction, joint dysfunction and deformity, and extra-articular organ damage. As an important source of new drug molecules, natural medicines have many advantages, such as a wide range of biological effects and small toxic and side effects. They have become a hot spot for the vast number of researchers to study various diseases and develop therapeutic drugs. In recent years, the research of natural medicines in the treatment of RA has made remarkable achievements. These natural medicines mainly include flavonoids, polyphenols, alkaloids, glycosides and terpenes. Among them, resveratrol, icariin, epigallocatechin-3-gallate, ginsenoside, sinomenine, paeoniflorin, triptolide and paeoniflorin are star natural medicines for the treatment of RA. Its mechanism of treating RA mainly involves these aspects: anti-inflammation, anti-oxidation, immune regulation, pro-apoptosis, inhibition of angiogenesis, inhibition of osteoclastogenesis, inhibition of fibroblast-like synovial cell proliferation, migration and invasion. This review summarizes natural medicines with potential therapeutic effects on RA and briefly discusses their mechanisms of action against RA.
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Affiliation(s)
- Xueling Liu
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zhiguo Wang
- Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Hua Qian
- Department of Traditional Chinese Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang City, China
| | - Wenhua Tao
- Department of Traditional Chinese Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang City, China
| | - Ying Zhang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Chunyan Hu
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Weiwei Mao
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Qi Guo
- School of Medicine, Jiangsu University, Zhenjiang, China
- *Correspondence: Qi Guo,
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2
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B cells in autoimmune hepatitis: bystanders or central players? Semin Immunopathol 2022; 44:411-427. [PMID: 35488094 PMCID: PMC9256567 DOI: 10.1007/s00281-022-00937-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/07/2022] [Indexed: 02/07/2023]
Abstract
B cells are central for the adaptive immune system to mount successful immune responses not only as antibody producers but also as regulators of cellular immunity. These multifaceted features are also reflected in autoimmunity where autoreactive B cells can fuel disease by production of cytotoxic autoantibodies, presentation of autoantigens to autoreactive T cells, and secretion of cytokines and chemokines that either promote detrimental immune activation or impair regulatory T and B cells. The role of B cells and autoantibodies in autoimmune hepatitis (AIH) have been controversially discussed, with typical autoantibodies and hypergammaglobulinemia indicating a key role, while strong HLA class II association suggests T cells as key players. In this review, we summarize current knowledge on B cells in AIH and how different B cell subpopulations may drive AIH progression beyond autoantibodies. We also discuss recent findings of B cell-directed therapies in AIH.
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Khatri S, Hansen J, Pedersen NB, Brandt-Clausen IP, Gram-Nielsen S, Mendes AC, Chronakis IS, Keiding UB, Catrina AI, Rethi B, Clausen MH, Kragstrup T, Astakhova K. Cyclic Citrullinated Peptide Aptamer Treatment Attenuates Collagen-Induced Arthritis. Biomacromolecules 2022; 23:2126-2137. [PMID: 35438963 DOI: 10.1021/acs.biomac.2c00144] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We describe the study of a novel aptamer-based candidate for treatment of seropositive rheumatoid arthritis. The candidate is a nanoparticle-formulated cyclic citrullinated peptide aptamer, which targets autoantibodies and/or the immune reactions leading to antibody production. Due to its specificity, the peptide aptamer nanoparticles might not interfere with normal immune functions as seen with other disease-modifying antirheumatic drugs. Over a 3-week course of treatment, joint swelling and arthritis score in collagen-induced rats were significantly decreased compared with animals treated with phosphate-buffered saline, unloaded nanoparticles, or nanoparticles with a noncitrullinated control peptide. The reduction in joint swelling was associated with decreased anticitrullinated peptide autoantibody levels in the blood. Treatment with aptamer nanoparticles also increased interleukin-10 levels. The effect seen with the proposed treatment candidate could be mediated by upregulation of anti-inflammatory mediators and decreased levels of anticitrullinated peptide antibodies.
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Affiliation(s)
- Sangita Khatri
- Department of Chemistry, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | - Jonas Hansen
- Department of Chemistry, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | - Nadia Bom Pedersen
- Department of Chemistry, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | | | - Sanne Gram-Nielsen
- DTU Biofacility, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | - Ana C Mendes
- DTU FOOD, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | | | - Ulrik Bering Keiding
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | - Anca I Catrina
- Department of Medicine/Solna, Division of Rheumatology, Karolinska Institute and Karolinska University Hospital, Stockholm 164 90, Sweden
| | - Bence Rethi
- Department of Medicine/Solna, Division of Rheumatology, Karolinska Institute and Karolinska University Hospital, Stockholm 164 90, Sweden
| | - Mads Hartvig Clausen
- IBIO TECH ApS, Copenhagen 2450, Denmark.,Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | - Tue Kragstrup
- IBIO TECH ApS, Copenhagen 2450, Denmark.,Department of Biomedicine, University of Aarhus, Aarhus C 8000, Denmark
| | - Kira Astakhova
- Department of Chemistry, Technical University of Denmark, Kgs Lyngby 2800, Denmark.,IBIO TECH ApS, Copenhagen 2450, Denmark
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Hirose S, Lin Q, Ohtsuji M, Nishimura H, Verbeek JS. Monocyte subsets involved in the development of systemic lupus erythematosus and rheumatoid arthritis. Int Immunol 2019; 31:687-696. [PMID: 31063541 PMCID: PMC6794944 DOI: 10.1093/intimm/dxz036] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 04/10/2019] [Indexed: 12/12/2022] Open
Abstract
AbstractMonocytes are evolutionally conserved innate immune cells that play essential roles for the protection of the host against pathogens and also produce several inflammatory cytokines. Thus, the aberrant functioning of monocytes may affect not only host defense but also the development of inflammatory diseases. Monocytes are a heterogeneous population with phenotypical and functional differences. Most recent studies have shown that monocytes are divided into three subsets, namely classical, intermediate and non-classical subsets, both in humans and mice. Accumulating evidence showed that monocyte activation is associated with the disease progression in autoimmune diseases, such as systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). However, it remains to be determined how monocytes contribute to the disease process and which subset is involved. In this review, we discuss the pathogenic role of monocyte subsets in SLE and RA on the basis of current studies by ourselves and others to shed light on the suitability of monocyte-targeted therapies in these diseases.
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Affiliation(s)
- Sachiko Hirose
- Department of Biomedical Engineering, Toin University of Yokohama, Kurogane-cho, Aoba-ku, Yokohama, Japan
| | - Qingshun Lin
- Department of Biomedical Engineering, Toin University of Yokohama, Kurogane-cho, Aoba-ku, Yokohama, Japan
| | - Mareki Ohtsuji
- Department of Biomedical Engineering, Toin University of Yokohama, Kurogane-cho, Aoba-ku, Yokohama, Japan
| | - Hiroyuki Nishimura
- Department of Biomedical Engineering, Toin University of Yokohama, Kurogane-cho, Aoba-ku, Yokohama, Japan
| | - J Sjef Verbeek
- Department of Biomedical Engineering, Toin University of Yokohama, Kurogane-cho, Aoba-ku, Yokohama, Japan
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5
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de Brito Rocha S, Baldo DC, Andrade LEC. Clinical and pathophysiologic relevance of autoantibodies in rheumatoid arthritis. Adv Rheumatol 2019; 59:2. [PMID: 30657101 DOI: 10.1186/s42358-018-0042-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 11/29/2018] [Indexed: 12/20/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune/inflammatory disease affecting 0.5 to 1% of adults worldwide and frequently leads to joint destruction and disability. Early diagnosis and early and effective therapy may prevent joint damage and lead to better long-term results. Therefore, reliable biomarkers and outcome measures are needed. Refinement of the understanding of molecular pathways involved in disease pathogenesis have been achieved by combining knowledge on RA-associated genes, environmental factors and the presence of serological elements. The presence of autoantibodies is a distinctive feature of RA. Rheumatoid Factor and Anti-Citrullinated Protein Antibodies are the two most remarkable autoantibodies in RA and provide different clinical and pathophysiological information. They precede the onset of disease symptoms and predict a more severe disease course, indicating a pathogenetic role in RA. Therefore, they promote a more accurate prognosis and contribute for a better disease management. Several RA-associated autoantibody systems have been identified: Anti-Carbamylated Antibodies, Anti-BRAF, Anti-Acetylated, Anti-PAD4 antibodies and others. Hopefully, the characterization of a comprehensive array of novel autoantibody systems in RA will provide unique pathogenic insights of relevance for the development of diagnostic and prognostic approaches compatible with an effective personalized medicine.
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Affiliation(s)
- Sara de Brito Rocha
- Rheumatology Division, Escola Paulista de Medicina, Universidade Federal de São Paulo, Disciplina de Reumatologia, Rua Botucatu 740, 3o andar, São Paulo, SP, ZIP:04023-062, Brazil.
| | - Danielle Cristiane Baldo
- Rheumatology Division, Escola Paulista de Medicina, Universidade Federal de São Paulo, Disciplina de Reumatologia, Rua Botucatu 740, 3o andar, São Paulo, SP, ZIP:04023-062, Brazil
| | - Luis Eduardo Coelho Andrade
- Rheumatology Division, Escola Paulista de Medicina, Universidade Federal de São Paulo, Disciplina de Reumatologia, Rua Botucatu 740, 3o andar, São Paulo, SP, ZIP:04023-062, Brazil
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Konieczna I, Relich I, Durajski M, Lechowicz L, Chrapek M, Gaweda J, Fraczyk J, Kaminski ZJ. Novel tool in rheumatoid arthritis diagnosis-The usage of urease flap region peptidomimetics. J Pept Sci 2018; 24:e3084. [PMID: 29870122 DOI: 10.1002/psc.3084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/29/2018] [Accepted: 04/09/2018] [Indexed: 12/18/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune inflammatory disease. Early diagnosis can prevent joint erosion. However, available biomarkers do not always allow for clear distinction between RA and non-RA individuals. It has become known that bacteria/viruses are among the environmental triggers that initiate RA via multiple molecular mechanisms. Thus, to better understand the role of bacteria in RA, we synthetized 6 peptidomimetics of bacterial ureases' flap region. These peptides were then used to distinguish RA patients from healthy people sera by immunoblotting. Most patients' sera were bound to peptidomimetic characteristic for Enterobacter sp. and Klebsiella sp. flap urease. We also found similarities between peptidomimetic sequence and human proteins connected with RA. This pilot study suggests that bacteria may trigger RA via mechanism of molecular mimicry of urease to host proteins and ureases flap peptidomimetics may be potential candidate as a new additional diagnostic test.
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Affiliation(s)
- Iwona Konieczna
- Department of Microbiology, Jan Kochanowski University, Swietokrzyska 15, 25-406, Kielce, Poland
| | - Inga Relich
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Maciej Durajski
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Lukasz Lechowicz
- Department of Microbiology, Jan Kochanowski University, Swietokrzyska 15, 25-406, Kielce, Poland
| | - Magdalena Chrapek
- Department of Probability and Statistics, Jan Kochanowski University, Swietokrzyska 15, 25-406, Kielce, Poland
| | - Jozef Gaweda
- Swietokrzyskie Rheumatology Center, St. Luke Specialized Hospital, Gimnazjalna 41B, 26-200, Konskie, Poland
| | - Justyna Fraczyk
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Zbigniew J Kaminski
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
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Zhong Q, Gong FY, Gong Z, Hua SH, Zeng KQ, Gao XM. IgG Immunocomplexes Sensitize Human Monocytes for Inflammatory Hyperactivity via Transcriptomic and Epigenetic Reprogramming in Rheumatoid Arthritis. THE JOURNAL OF IMMUNOLOGY 2018; 200:3913-3925. [PMID: 29712771 DOI: 10.4049/jimmunol.1701756] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 04/04/2018] [Indexed: 12/31/2022]
Abstract
Prevalence of circulating immunocomplexes (ICs) strongly correlates with rheumatoid arthritis (RA) in humans. Deposits of IgG-ICs are abundant in affected joints of patients, yet molecular mechanisms for the pathogenic roles of such ICs are not fully understood. In this study, we present evidence that IgG-ICs precipitated from RA sera sensitized human monocytes for a long-lasting inflammatory functional state, characterized by a strong TNF-α response to cellular proteins representing damage-associated molecular patterns and microbe-derived pathogen-associated molecular patterns. Importantly, plate-coated human IgG (a mimic of deposited IC without Ag restriction) exhibited a similarly robust ability of monocyte sensitization in vitro. The plate-coated human IgG-induced functional programming is accompanied by transcriptomic and epigenetic modification of various inflammatory cytokines and negative regulator genes. Moreover, macrophages freshly isolated from synovia of patients with RA, but not sera-negative arthropathy, displayed a signature gene expression profile highly similar to that of IC-sensitized human monocytes, indicative of historical priming events by IgG-ICs in vivo. Thus, the ability of IgG-ICs to drive sustainable functional sensitization/reprogramming of monocytes and macrophages toward inflammation may render them key players in the development of RA.
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Affiliation(s)
- Qiao Zhong
- Institute of Biology and Medical Sciences, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China.,Department of Laboratory Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, China.,Suzhou Municipal Hospital, Suzhou 215002, China
| | - Fang-Yuan Gong
- Institute of Biology and Medical Sciences, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Zheng Gong
- Institute of Biology and Medical Sciences, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Sheng-Hao Hua
- Institute of Biology and Medical Sciences, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Ke-Qin Zeng
- Institute of Biology and Medical Sciences, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China.,Department of Rheumatology, The First Affiliated Hospital of Soochow University, Suzhou 215001, China
| | - Xiao-Ming Gao
- Institute of Biology and Medical Sciences, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China; .,Jiangsu Key Laboratory of Infection and Immunity, Suzhou 215123, China; and.,Key Laboratory of Systemic Biomedical Study, Suzhou 215123, China
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8
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Dekkers G, Rispens T, Vidarsson G. Novel Concepts of Altered Immunoglobulin G Galactosylation in Autoimmune Diseases. Front Immunol 2018; 9:553. [PMID: 29616041 PMCID: PMC5867308 DOI: 10.3389/fimmu.2018.00553] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 03/05/2018] [Indexed: 12/22/2022] Open
Abstract
The composition of the conserved N297 glycan in immunoglobulin G (IgG) has been shown to affect antibody effector functions via C1q of the complement system and Fc gamma receptors (FcγR) on immune cells. Changes in the general levels of IgG-glycoforms, such as lowered total IgG galactosylation observed in many autoimmune diseases have been associated with elevated disease severity. Agalactosyslated IgG has therefore been regarded and classified by many as pro-inflammatory. However, and somewhat counterintuitively, agalactosylation has been shown by several groups to decrease affinity for FcγRIII and decrease C1q binding and downstream activation, which seems at odds with this proposed pro-inflammatory nature. In this review, we discuss these circumstances where altered IgG galactosylation/glycosylation is found. We propose a novel model based on these observations and current biochemical evidence, where the levels of IgG galactosylation found in the total bulk IgG affect the threshold required to achieve immune activation by autoantibodies through either C1q or FcγR. Although this model needs experimental verification, it is supported by several clinical observations and reconciles apparent discrepancies in the literature, and suggests a general mechanism in IgG-mediated autoimmune diseases.
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Affiliation(s)
- Gillian Dekkers
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands.,Sanquin Research and Landsteiner Laboratory, Department of Immunopathology, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | - Theo Rispens
- Sanquin Research and Landsteiner Laboratory, Department of Immunopathology, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | - Gestur Vidarsson
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
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Ospelt C, Bang H, Feist E, Camici G, Keller S, Detert J, Krämer A, Gay S, Ghannam K, Burmester GR. Carbamylation of vimentin is inducible by smoking and represents an independent autoantigen in rheumatoid arthritis. Ann Rheum Dis 2017; 76:1176-1183. [PMID: 28183721 PMCID: PMC5530349 DOI: 10.1136/annrheumdis-2016-210059] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 11/08/2016] [Accepted: 11/08/2016] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Smoking has been connected to citrullination of antigens and formation of anti-citrullinated peptide antibodies (ACPAs) in rheumatoid arthritis (RA). Since smoking can modify proteins by carbamylation (formation of homocitrulline), this study was conducted to investigate these effects on vimentin in animal models and RA. METHODS The efficiency of enzymatic carbamylation of vimentin was characterised. B-cell response was investigated after immunisation of rabbits with different vimentin isoforms. Effects of tobacco smoke exposure on carbamylation of vimentin and formation of autoantibodies were analysed in mice. The antibody responses against isoforms of vimentin were characterised with respect to disease duration and smoking status of patients with RA. RESULTS Enzymatic carbamylation of vimentin was efficiently achieved. Subsequent citrullination of vimentin was not disturbed by homocitrullination. Sera from rabbits immunised with carbamylated vimentin (carbVim), in addition to carbVim also recognised human IgG-Fc showing rheumatoid factor-like reactivity. Smoke-exposed mice contained detectable amounts of carbVim and developed a broad immune response against carbamylated antigens. Although the prevalence of anti-carbamylated antibodies in smokers and non-smokers was similar, the titres of carbamylated antibodies were significantly increased in sera of smoking compared with non-smoking RA. CarbVim antibodies were observed independently of ACPAs in early phases of disease and double-positive patients for anti-mutated citrullinated vimentin (MCV) and anti-carbVim antibodies showed an extended epitope recognition pattern towards MCV. CONCLUSIONS Carbamylation of vimentin is inducible by cigarette smoke exposure. The polyclonal immune response against modified antigens in patients with RA is not exclusively citrulline-specific and carbamylation of antigens could be involved in the pathogenesis of disease. TRIAL REGISTRATION NUMBER ISRCTN36745608; EudraCT Number: 2006-003146-41.
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Affiliation(s)
- Caroline Ospelt
- Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland
| | | | - Eugen Feist
- Department of Rheumatology and Clinical Immunology, Charite University Hospital, Berlin, Germany
| | - Giovanni Camici
- Center for Molecular Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Stephan Keller
- Center for Molecular Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Jacqueline Detert
- Department of Rheumatology and Clinical Immunology, Charite University Hospital, Berlin, Germany
| | | | - Steffen Gay
- Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland
| | - Khetam Ghannam
- Department of Rheumatology and Clinical Immunology, Charite University Hospital, Berlin, Germany
| | - Gerd R Burmester
- Department of Rheumatology and Clinical Immunology, Charite University Hospital, Berlin, Germany
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Cellular and molecular pathways of structural damage in rheumatoid arthritis. Semin Immunopathol 2017; 39:355-363. [PMID: 28597065 DOI: 10.1007/s00281-017-0634-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 04/19/2017] [Indexed: 12/11/2022]
Abstract
Structural damage of cartilage and bone tissue is a hallmark of rheumatoid arthritis (RA). The resulting joint destruction constitutes one of the major disease consequences for patients and creates a significant burden for the society. The main cells executing bone and cartilage degradation are osteoclasts and fibroblast-like synoviocytes, respectively. The function of both cell types is heavily influenced by the immune system. In the last decades, research has identified several mediators of structural damage, ranging from infiltrating immune cells and inflammatory cytokines to autoantibodies. These factors result in an inflammatory milieu in the affected joints which leads to an increased development and function of osteoclasts and the transformation of fibroblast-like synoviocytes towards a highly migratory and destructive phenotype. In addition, repair mechanisms mediated by osteoblasts and chondrocytes are strongly impaired by the presence of pro-inflammatory cytokines. This article will review the current knowledge on the mechanisms of joint inflammation and the destruction of bone and cartilage.
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11
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Prevalence, sensitivity and specificity of antibodies against carbamylated proteins in a monocentric cohort of patients with rheumatoid arthritis and other autoimmune rheumatic diseases. Arthritis Res Ther 2016; 18:276. [PMID: 27887639 PMCID: PMC5124308 DOI: 10.1186/s13075-016-1173-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/07/2016] [Indexed: 01/14/2023] Open
Abstract
Background Antibodies against carbamylated proteins (anti-CarP) have been recently identified in the sera of patients with rheumatoid arthritis (RA). The objective of the study was to evaluate the prevalence, sensitivity and specificity of anti-CarP compared to anti-citrullinated peptide antibodies (ACPA) and rheumatoid factor (RF), replicating the existing data in a large cohort of Italian patients with RA and extending the evaluation to other autoimmune rheumatic diseases (AIRDs). Methods Serum samples (n = 607) from 309 patients with RA, 200 disease controls and 98 normal healthy subjects (NHS) were evaluated. Anti-CarP were detected using carbamylated fetal calf serum as the antigen. ACPAs were detected using second-generation ELISA and IgM RF was assessed as part of routine analysis. Results Anti-CarP antibodies were detected in 117 patients with RA (34.4%), ACPA in 190 patients (61.4%) and RF in 202 patients (65.3%). Two (2.04%) of the NHS were positive for anti-CarP, one NHS (1.02%) was positive for ACPA and three NHS were positive for RF (3.06%). Among disease controls, anti-CarP antibodies were detected in 33 patients (16.5%), ACPA in 29 patients (14.5%) and RF in 64 patients (32%). In particular, 16.8% of patients with systemic lupus erythematosus and 31.1% of patients with Sjögren syndrome were positive for anti-CarP. The sensitivity of anti-CarP, ACPA and RF was 46.8%, 61.8% and 64.4%, respectively and specificity was 91.95%, 89.93% and 76.51%, respectively. Conclusions The present study extends the knowledge of anti-CarP antibodies, confirming previous data on the diagnostic accuracy of anti-CarP in RA in a large cohort of Italian patients. Anti-CarP antibodies demonstrated relatively low sensitivity and slightly higher specificity compared to ACPA and RF. Even if predominantly present in RA, anti-CarP was detected in a variable percentage of patients with other autoimmune rheumatic diseases and their generation could be attributed to the inflammatory status; the clinical relevance of anti-CarP antibodies in these latter patients should be further determined.
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12
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Yang H, Wang J, Li Y, Yin ZJ, Lv TT, Zhu P, Zhang Y. CD147 modulates the differentiation of T-helper 17 cells in patients with rheumatoid arthritis. APMIS 2016; 125:24-31. [PMID: 27859685 DOI: 10.1111/apm.12629] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 09/05/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Hui Yang
- Department of Immunology and Rheumatology; Tangdu Hospital; Fourth Military Medical University; Xi'an Shaanxi Province China
| | - Jian Wang
- Department of Orthopedics; Tangdu Hospital; Fourth Military Medical University; Xi'an Shaanxi Province China
| | - Yu Li
- Department of Immunology and Rheumatology; Tangdu Hospital; Fourth Military Medical University; Xi'an Shaanxi Province China
| | - Zhen-Jie Yin
- Department of Immunology and Rheumatology; Tangdu Hospital; Fourth Military Medical University; Xi'an Shaanxi Province China
| | - Ting-Ting Lv
- Department of Immunology and Rheumatology; Tangdu Hospital; Fourth Military Medical University; Xi'an Shaanxi Province China
| | - Ping Zhu
- Department of Clinical Immunology; Xijing Hospital; Fourth Military Medical University; Xi'an Shaanxi Province China
| | - Yan Zhang
- Department of Immunology and Rheumatology; Tangdu Hospital; Fourth Military Medical University; Xi'an Shaanxi Province China
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13
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Yang J, Cai HD, Zeng YL, Chen ZH, Fang MH, Su YP, Huang HH, Xu Y, Yu CX. Effects of Koumine on Adjuvant- and Collagen-Induced Arthritis in Rats. JOURNAL OF NATURAL PRODUCTS 2016; 79:2635-2643. [PMID: 27657857 DOI: 10.1021/acs.jnatprod.6b00554] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To examine the effect of koumine, a Gelsemium alkaloid, on two experimental models of rheumatoid arthritis (RA), rats with adjuvant-induced arthritis (AIA) and collagen-induced arthritis (CIA) were administered koumine (0.6, 3, or 15 mg/kg/day) or vehicle through gastric gavage (i.g.). Clinical evaluation was performed via measurements of hind paw volume, arthritis index (AI) score, mechanical withdrawal threshold, organ weight, and by radiographic and histological examinations. Levels of interleukin (IL)-1β, tumor necrosis factor (TNF)-α, and antitype II collagen (CII) antibody were also examined. In rats with AIA, koumine reduced the AI score and mechanical allodynia of the injected hind paw in a dose-dependent manner and significantly inhibited increase in thymus and liver weights. In rats with CIA, koumine inhibited increase in hind paw volume, AI score, and mechanical allodynia in a dose-dependent manner and reduced joint space narrowing. Furthermore, koumine also attenuated the increase in the expression of IL-1β and TNF-α, as well as the robust increase of serum anti-CII antibodies in response to immunization. These results suggested that koumine effectively attenuated arthritis progression in two rat models of RA and that this therapeutic effect may be associated with its immunoregulatory action.
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Affiliation(s)
- Jian Yang
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
| | - Hong-Da Cai
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
| | - Yu-Lan Zeng
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
| | - Ze-Hong Chen
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
| | - Meng-Han Fang
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
| | - Yan-Ping Su
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
| | - Hui-Hui Huang
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
| | - Ying Xu
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
| | - Chang-Xi Yu
- Department of Pharmacology and ‡Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University , Fuzhou, Fujian 350108, China
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14
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Lee YH, Bae SC. Association between shortened telomere length and rheumatoid arthritis. Z Rheumatol 2016; 77:160-167. [DOI: 10.1007/s00393-016-0209-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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15
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Lechowicz L, Chrapek M, Gaweda J, Urbaniak M, Konieczna I. Use of Fourier-transform infrared spectroscopy in the diagnosis of rheumatoid arthritis: a pilot study. Mol Biol Rep 2016; 43:1321-1326. [PMID: 27640014 PMCID: PMC5102982 DOI: 10.1007/s11033-016-4079-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 09/09/2016] [Indexed: 12/11/2022]
Abstract
Rheumatoid arthritis is an autoimmune inflammatory disease leading to joint cartilage, bone degradation and limitation of mobility. Diagnosis of RA is difficult and complex. There are also no effective methods for clear discrimination between RA patients and non-RA individuals. In this work we use IR spectroscopy to differentiate RA patients and blood donors’ sera. We found differences between investigated sera (RA and non-RA) in range of 3000–2800 and 1800–800 cm−1 (W1–W5 regions). Based on mathematical analysis we developed a K-NN model characterized by 85 % of sensitivity and 100 % of specificity. Also we found that, wavenumber 1424 cm−1, comprising in W3 region, was the most effective in human sera distinguishing. We conclude that IR spectroscopy may serve as a fast and easy method useful in RA serology.
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Affiliation(s)
- Lukasz Lechowicz
- Department of Microbiology, Institute of Biology, Jan Kochanowski University, Swietokrzyska 15, 25-406, Kielce, Poland.
| | - Magdalena Chrapek
- Department of Probability and Statistics, Jan Kochanowski University, Swietokrzyska 11, 25-406, Kielce, Poland
| | - Jozef Gaweda
- Swietokrzyskie Rheumatology Center, St. Luke Specialized Hospital, Gimnazjalna 41B, 26-200, Konskie, Poland
| | - Mariusz Urbaniak
- Organic Chemistry Division, Jan Kochanowski University, Swietokrzyska 11, 25-406, Kielce, Poland
| | - Iwona Konieczna
- Department of Microbiology, Institute of Biology, Jan Kochanowski University, Swietokrzyska 15, 25-406, Kielce, Poland
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16
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Montes A, Regueiro C, Perez-Pampin E, Boveda MD, Gomez-Reino JJ, Gonzalez A. Anti-Carbamylated Protein Antibodies as a Reproducible Independent Type of Rheumatoid Arthritis Autoantibodies. PLoS One 2016; 11:e0161141. [PMID: 27537849 PMCID: PMC4990271 DOI: 10.1371/journal.pone.0161141] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 07/30/2016] [Indexed: 12/29/2022] Open
Abstract
A large fraction of the patients with rheumatoid arthritis (RA) develop specific autoantibodies, which until recently were only of two types, rheumatoid factor (RF) and anti-citrullinated protein antibodies (ACPA). We aimed to replicate important findings about a recently described third type of specific autoantibodies, anti-carbamylated protein (anti-CarP) antibodies, because they have been described based only in the homemade ELISA from a single laboratory. Our study included 520 patients with established RA and 278 healthy controls of Spanish ancestry and it was done with an independently performed ELISA. The prevalence and pattern of environmental, clinical and genetic associations of the anti-CarP antibodies were similar to the previously described. Notably, the presence and titers of anti-CarP correlated with the presence and titers of ACPA, but the anti-CarP antibodies did not share the known genetic and exposure risk factors of the ACPA. In addition, anti-CarP antibodies were independently associated with a higher (10.5%) prevalence of bone erosions. The reproducibility of these characteristics across laboratories and European subpopulations, indicates the wide validity of the results and suggests that determination of anti-CarP antibodies could contribute to explain RA pathogenesis and identify clinically relevant patient subgroups.
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Affiliation(s)
- Ariana Montes
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Cristina Regueiro
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Eva Perez-Pampin
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Maria Dolores Boveda
- Unit of Diagnosis and Treatment of Congenital Metabolic Diseases, Department of Pediatrics, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Juan J. Gomez-Reino
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
- Department of Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Antonio Gonzalez
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
- * E-mail:
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17
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Kecse-Nagy C, Szittner Z, Papp K, Hegyi Z, Rovero P, Migliorini P, Lóránd V, Homolya L, Prechl J. Characterization of NF-κB Reporter U937 Cells and Their Application for the Detection of Inflammatory Immune-Complexes. PLoS One 2016; 11:e0156328. [PMID: 27232500 PMCID: PMC4883785 DOI: 10.1371/journal.pone.0156328] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 05/12/2016] [Indexed: 12/24/2022] Open
Abstract
Our study tested the hypothesis that immunoglobulins differ in their ability to activate the nuclear factor-κB pathway mediated cellular responses. These responses are modulated by several properties of the immune complex, including the ratio of antibody isotypes binding to antigen. Immunoassays allow the measurement of antigen specific antibodies belonging to distinct immunoglobulin classes and subclasses but not the net biological effect of the combination of these antibodies. We set out to develop a biosensor that is suitable for the detection and characterization of antigen specific serum antibodies. We genetically modified the monocytoid U937 cell line carrying Fc receptors with a plasmid encoding NF-κB promoter-driven GFP. This clone, U937-NF-κB, was characterized with respect to FcR expression and response to solid-phase immunoglobulins. Human IgG3, IgG4 and IgG1 induced GFP production in a time- and dose-dependent manner, in this order of efficacy, while IgG2 triggered no activation at the concentrations tested. IgA elicited no response alone but showed significant synergism with IgG3 and IgG4. We confirmed the importance of activation via FcγRI by direct stimulation with monoclonal antibody and by competition assays. We used citrullinated peptides and serum from rheumatoid arthritis patients to generate immune complexes and to study the activation of U937-NF-κB, observing again a synergistic effect between IgG and IgA. Our results show that immunoglobulins have distinct pro-inflammatory potential, and that U937-NF-κB is suitable for the estimation of biological effects of immune-complexes, offering insight into monocyte activation and pathogenesis of antibody mediated diseases.
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Affiliation(s)
- Csilla Kecse-Nagy
- Department of Immunology, Eötvös Loránd University, H-1117, Pázmány Péter s. 1/C, Budapest, Hungary
| | - Zoltán Szittner
- MTA-ELTE Immunology Research Group, H-1117, Pázmány Péter s. 1/C, Budapest, Hungary
- * E-mail:
| | - Krisztián Papp
- MTA-ELTE Immunology Research Group, H-1117, Pázmány Péter s. 1/C, Budapest, Hungary
| | - Zoltán Hegyi
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, H-1117 Budapest, Magyar tudósok körútja 2, Budapest, Hungary
| | - Paolo Rovero
- Department of NeuroFarBa, Section of Pharmaceutical Sciences and Nutraceutics, Laboratory of Peptide and Protein Chemistry and Biology, University of Florence, Via Ugo Schiff 6, 50019, Sesto Fiorentino, Italy
| | - Paola Migliorini
- Clinical Immunology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Veronika Lóránd
- Department of Rheumatology and Immunology, Clinic Center, PTE, Pécs, Hungary
| | - László Homolya
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, H-1117 Budapest, Magyar tudósok körútja 2, Budapest, Hungary
| | - József Prechl
- MTA-ELTE Immunology Research Group, H-1117, Pázmány Péter s. 1/C, Budapest, Hungary
- Research and Development Laboratory, Diagnosticum Inc., H-1047, Budapest, Attila út 146, Hungary
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18
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Jung SM, Lee J, Lee J, Baek SY, Park SH, Kwok SK. The Therapeutic Effect of Sauchinone on Inflammatory Arthritis in Mice. JOURNAL OF RHEUMATIC DISEASES 2016. [DOI: 10.4078/jrd.2016.23.3.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Seung Min Jung
- Division of Rheumatology, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
- Rheumatism Research Center, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jaeseon Lee
- Rheumatism Research Center, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Juhyun Lee
- Rheumatism Research Center, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Seung Ye Baek
- Rheumatism Research Center, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sung-Hwan Park
- Division of Rheumatology, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
- Rheumatism Research Center, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Seung-Ki Kwok
- Division of Rheumatology, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
- Rheumatism Research Center, The Catholic University of Korea College of Medicine, Seoul, Korea
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19
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The association between rheumatoid arthritis and periodontitis. Best Pract Res Clin Rheumatol 2015; 29:189-201. [PMID: 26362738 DOI: 10.1016/j.berh.2015.03.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Revised: 02/23/2015] [Accepted: 03/02/2015] [Indexed: 01/07/2023]
Abstract
The relationship between rheumatoid arthritis and poor oral health has been recognised for many decades. The association between periodontal infection and the risk of developing RA has been the subject of epidemiological, clinical and basic science research in recent times. Converging and reproducible evidence now makes a clear case for the role of specific periodontal infective pathogens in initiating, amplifying and perpetuating rheumatoid arthritis. The unique enzymatic properties of the periodontal pathogen Porphyromonas gingivalis and its contribution to the burden of citrullinated peptides is now well established. The impact of localized infection such as periodontitis in shaping specific anti-citrullinated peptide immune responses highlights a key area for treatment, prevention and risk assessment in rheumatoid arthritis.
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20
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Chen P, Yang W, Tian Y, Sun S, Chen G, Zhang C, Ma F, Xun Y, Shi L, Yang C, Zhao L, Zhou Y, Du H. Electron Transfer Flavoprotein Subunit Beta Is a Candidate Endothelial Cell Autoantigen in Behçet's Disease. PLoS One 2015; 10:e0124760. [PMID: 25915519 PMCID: PMC4410958 DOI: 10.1371/journal.pone.0124760] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Accepted: 03/05/2015] [Indexed: 01/10/2023] Open
Abstract
Behçet’s disease (BD) is a chronic inflammatory disease with multisystem involvement, and it is listed as a rare disease in the United States but is common in the Middle East, China, and Japan. The aim of this study was to identify novel autoantigens in Chinese patients with BD. First, the candidate autoantigens were screened by Western blotting, and the sequences of putative antigens were identified by LC-MALDI-TOF/TOF mass spectrometry. Next, the screened protein was cloned, expressed and purified. Then, an optimized ELISA was developed, and the serological criteria were evaluated using a large number of confirmed patients. One antigen with a molecular weight of approximately 28 kDa was identified as electron transfer flavoprotein subunit beta (ETFB). Positive reactivity was detected in recombinant human ETFB sera from 38 of 92 BD patients (41 %) and 1 of 90 healthy controls (1 %).
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Affiliation(s)
- Peng Chen
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Weikang Yang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yaping Tian
- Department of Clinical Biochemistry, Chinese PLA General Hospital, Beijing, 100853, China
| | - Shutao Sun
- Core Facility, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Guangyu Chen
- ImmunoHunt Corporation, 139 Fengtai Rd, Beijing, 100071, China
| | - ChunYan Zhang
- Department of Clinical Biochemistry, Chinese PLA General Hospital, Beijing, 100853, China
| | - Fuxin Ma
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yiping Xun
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Lili Shi
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Chunhe Yang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Lanqing Zhao
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yabin Zhou
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hongwu Du
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- * E-mail:
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21
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Prohibitin as a novel autoantigen in rheumatoid arthritis. Cent Eur J Immunol 2015; 40:78-82. [PMID: 26155187 PMCID: PMC4472543 DOI: 10.5114/ceji.2015.50837] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Accepted: 12/01/2014] [Indexed: 12/29/2022] Open
Abstract
The aim of this study The aim of this study was to verify whether prohibitin is a novel autoantigen in rheumatoid arthritis. Material and methods First, recombinant human prohibitin (rhPHB) protein was cloned, expressed, and purified. Then the anti-prohibitin autoantibodies were detected by western blotting by using rhPHB protein to incubate sera from patients with rheumatoid arthritis (RA). Next, immunoprecipitation was employed to further illustrate whether anti-prohibitin antibodies exist in RA patients. And finally, autoantibodies against the rhPHB protein were investigated using a homemade ELISA kit through the assessment of 258 real clinical samples. Results It was revealed that anti-prohibitin antibodies existed in the sera of patients with RA. Reactivity of serum IgG against rhPHB was detected in 26 of 86 RA patients (30.3%), 7 of 86 systemic lupus erythematosus (SLE) patients (8.1%), and 1 of 86 apparently healthy donors (HC) (1.2%). Conclusions Prohibitin was proved to be a novel autoantigen and the corresponding anti-prohibitin autoantibodies were present in the RA patients' blood circulation.
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22
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Kroese FGM, Baeten D, Huizinga TWJ. Autoimmunity: break-through in the diagnosis and treatment of immune-mediated inflammatory diseases. Immunol Lett 2014; 162:150-62. [PMID: 25455603 DOI: 10.1016/j.imlet.2014.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The study of fundamental mechanisms of autoimmunity has been instrumental to clinical progress in the diagnosis and treatment of a range of immune-mediated inflammatory disorders. Dutch immunology has made major contributions to these developments, ranging from fundamental studies on immune cells, antibodies and cytokines to translational and clinical studies with targeted therapies in patients. In this paper we illustrate the progress made in our understanding of autoimmunity and the translational implications for human disease management by focusing on three areas: the autoantibody response in rheumatoid arthritis (RA), T-B cell interactions in Sjögren's syndrome (SS), and cytokine targeting in spondylarthritis (SpA).
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Affiliation(s)
- Frans G M Kroese
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
| | - Dominique Baeten
- Department of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Tom W J Huizinga
- Department of Rheumatology, C1-41 Leiden University Medical Center, Albinusdreef 2, P.O. Box 9600, 2300 RC Leiden, The Netherlands
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