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Jia Y, Feng B, Ji X, Tian X, Zhao L, Zhou J, Zhang W, Li M, Fei Y, Wu X. Complement factor H attenuates TNF-α-induced inflammation by upregulating EIF3C in rheumatoid arthritis. J Transl Med 2023; 21:846. [PMID: 37996918 PMCID: PMC10668393 DOI: 10.1186/s12967-023-04730-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/12/2023] [Indexed: 11/25/2023] Open
Abstract
OBJECTIVE To explore the role and underlying mechanism of Complement Factor H (CFH) in the peripheral and joint inflammation of RA patients. METHODS The levels of CFH in the serum and synovial fluid were determined by ELISA. The pyroptosis of monocytes was determined by western blotting and flow cytometry. The inflammation cytokine release was tested by ELISA. The cell migration and invasion ability of fibroblast-like synoviocytes (FLS) were tested by Wound healing Assay and transwell assay, respectively. The potential target of CFH was identified by RNA sequencing. RESULTS CFH levels were significantly elevated in the serum and synovial fluid from RA and associated with high sensitivity C-reactive protein (hs-CRP), erythrocyte sedimentation rate (ESR), and disease activity score 28 (DAS28). TNF-α could inhibit CFH expression, and CFH combined with TNF-α significantly decreased cell death, cleaved-caspase 3, gasdermin E N-terminal (GSDME-N), and inflammatory cytokines release (IL-1β and IL-6) of RA-derived monocytes. Stimulated with TNF-α increased CFH levels in RA FLS and CFH inhibits the migration, invasion, and TNF-α-induced production of inflammatory mediators, including proinflammatory cytokines (IL-6, IL-8) as well as matrix metalloproteinases (MMPs, MMP1 and MMP3) of RA FLSs. The RNA-seq results showed that CFH treatment induced upregulation of eukaryotic translation initiation factor 3 (EIF3C) in both RA monocytes and FLS. The migration of RA FLSs was promoted and the expressions of IL-6, IL-8, and MMP-3 were enhanced upon EIF3C knockdown under the stimulation of CFH combined with TNF-α. CONCLUSION In conclusion, we have unfolded the anti-inflammatory roles of CFH in the peripheral and joints of RA, which might provide a potential therapeutic target for RA patients.
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Affiliation(s)
- Yimeng Jia
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
- The Ministry of Education Key Laboratory, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Bin Feng
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Xin Ji
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Xinping Tian
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
- The Ministry of Education Key Laboratory, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Lidan Zhao
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
- The Ministry of Education Key Laboratory, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Jiaxin Zhou
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
- The Ministry of Education Key Laboratory, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Wen Zhang
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
- The Ministry of Education Key Laboratory, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Mengtao Li
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
- The Ministry of Education Key Laboratory, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Yunyun Fei
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China.
- The Ministry of Education Key Laboratory, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China.
- Department of Health and Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.
| | - Xunyao Wu
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China.
- The Ministry of Education Key Laboratory, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China.
- Department of Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
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2
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Verweyen EL, Thakkar K, Dhakal S, Baker E, Chetal K, Schnell D, Canna S, Grom AA, Salomonis N, Schulert GS. Population-level single-cell genomics reveals conserved gene programs in systemic juvenile idiopathic arthritis. J Clin Invest 2023; 133:e166741. [PMID: 37733441 PMCID: PMC10645394 DOI: 10.1172/jci166741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 09/19/2023] [Indexed: 09/23/2023] Open
Abstract
Systemic autoimmune and autoinflammatory diseases are characterized by genetic and cellular heterogeneity. While current single-cell genomics methods provide insights into known disease subtypes, these analysis methods do not readily reveal novel cell-type perturbation programs shared among distinct patient subsets. Here, we performed single-cell RNA-Seq of PBMCs of patients with systemic juvenile idiopathic arthritis (SJIA) with diverse clinical manifestations, including macrophage activation syndrome (MAS) and lung disease (LD). We introduced two new computational frameworks called UDON and SATAY-UDON, which define patient subtypes based on their underlying disrupted cellular programs as well as associated biomarkers or clinical features. Among twelve independently identified subtypes, this analysis uncovered what we believe to be a novel complement and interferon activation program identified in SJIA-LD monocytes. Extending these analyses to adult and pediatric lupus patients found new but also shared disease programs with SJIA, including interferon and complement activation. Finally, supervised comparison of these programs in a compiled single-cell pan-immune atlas of over 1,000 healthy donors found a handful of normal healthy donors with evidence of early inflammatory activation in subsets of monocytes and platelets, nominating possible biomarkers for early disease detection. Thus, integrative pan-immune single-cell analysis resolved what we believe to be new conserved gene programs underlying inflammatory disease pathogenesis and associated complications.
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Affiliation(s)
| | - Kairavee Thakkar
- Division of Biomedical Informatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | - Kashish Chetal
- Division of Biomedical Informatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Daniel Schnell
- Division of Biomedical Informatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Scott Canna
- Children’s Hospital of Philadelphia, Division of Rheumatology, Philadelphia, Pennsylvania, USA
| | - Alexei A. Grom
- Division of Rheumatology and
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Nathan Salomonis
- Division of Biomedical Informatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Grant S. Schulert
- Division of Rheumatology and
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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3
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Coss SL, Zhou D, Chua GT, Aziz RA, Hoffman RP, Wu YL, Ardoin SP, Atkinson JP, Yu CY. The complement system and human autoimmune diseases. J Autoimmun 2023; 137:102979. [PMID: 36535812 PMCID: PMC10276174 DOI: 10.1016/j.jaut.2022.102979] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
Genetic deficiencies of early components of the classical complement activation pathway (especially C1q, r, s, and C4) are the strongest monogenic causal factors for the prototypic autoimmune disease systemic lupus erythematosus (SLE), but their prevalence is extremely rare. In contrast, isotype genetic deficiency of C4A and acquired deficiency of C1q by autoantibodies are frequent among patients with SLE. Here we review the genetic basis of complement deficiencies in autoimmune disease, discuss the complex genetic diversity seen in complement C4 and its association with autoimmune disease, provide guidance as to when clinicians should suspect and test for complement deficiencies, and outline the current understanding of the mechanisms relating complement deficiencies to autoimmunity. We focus primarily on SLE, as the role of complement in SLE is well-established, but will also discuss other informative diseases such as inflammatory arthritis and myositis.
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Affiliation(s)
- Samantha L Coss
- Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatrics, The Ohio State University, Columbus, OH, USA.
| | - Danlei Zhou
- Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatrics, The Ohio State University, Columbus, OH, USA
| | - Gilbert T Chua
- Department of Pediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Rabheh Abdul Aziz
- Department of Pediatrics, The Ohio State University, Columbus, OH, USA; Department of Allergy, Immunology and Rheumatology, University of Buffalo, NY, USA
| | - Robert P Hoffman
- Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatrics, The Ohio State University, Columbus, OH, USA
| | - Yee Ling Wu
- Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatrics, The Ohio State University, Columbus, OH, USA; Department of Microbiology and Immunology, Loyola University Chicago, Maywood, IL, USA
| | - Stacy P Ardoin
- Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatrics, The Ohio State University, Columbus, OH, USA
| | - John P Atkinson
- Department of Medicine, Division of Rheumatology, Washington University School of Medicine, St Louis, MO, USA
| | - Chack-Yung Yu
- Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatrics, The Ohio State University, Columbus, OH, USA.
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4
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Glerup M, Thiel S, Rypdal V, Arnstad ED, Ekelund M, Peltoniemi S, Aalto K, Rygg M, Nielsen S, Fasth A, Berntson L, Nordal E, Herlin T. Complement lectin pathway protein levels reflect disease activity in juvenile idiopathic arthritis: a longitudinal study of the Nordic JIA cohort. Pediatr Rheumatol Online J 2019; 17:63. [PMID: 31500626 PMCID: PMC6734250 DOI: 10.1186/s12969-019-0367-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/05/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To determine the serum levels of the lectin pathway proteins early in the disease course and 17 years after disease onset and to correlate the protein levels to markers of disease activity in participants from a population-based Nordic juvenile idiopathic arthritis (JIA) cohort. Additionally, to assess the predictive value of lectin pathway proteins with respect to remission status. METHODS A population-based cohort study of consecutive cases of JIA with a disease onset from 1997 to 2000 from defined geographical areas of Finland, Sweden, Norway and Denmark with 17 years of follow-up was performed. Clinical characteristics were registered and H-ficolin, M-ficolin, MASP-1, MASP-3, MBL and CL-K1 levels in serum were analyzed. RESULTS In total, 293 patients with JIA were included (mean age 23.7 ± 4.4 years; mean follow-up 17.2 ± 1.7 years). Concentrations of the lectin protein levels in serum were higher at baseline compared to the levels 17 years after disease onset (p ≤ 0.006, n = 164). At baseline, the highest level of M-ficolin was observed in systemic JIA. Further, high M-ficolin levels at baseline and at 17-year follow-up were correlated to high levels of ESR. In contrast, high MASP-1 and MASP-3 tended to correlate to low ESR. CL-K1 showed a negative correlation to JADAS71 at baseline. None of the protein levels had prognostic abilities for remission status 17 years after disease onset. CONCLUSION We hypothesize that increased serum M-ficolin levels are associated with higher disease activity in JIA and further, the results indicate that MASP-1, MASP-3 and CL-K1 are markers of inflammation.
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Affiliation(s)
- Mia Glerup
- Department of Pediatrics, Aarhus University Hospital, Palle Juul-Jensens Blvd. 99, 8200 Aarhus N, Denmark
| | - Steffen Thiel
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Veronika Rypdal
- Department of Pediatrics, University Hospital of North Norway, and Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Ellen Dalen Arnstad
- Department of Clinical and Molecular Medicine, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
- Department of Pediatrics, Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway
| | - Maria Ekelund
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- Department of Pediatrics, Ryhov County Hospital, Jonkoping, Sweden
| | - Suvi Peltoniemi
- New Children’s Hospital, Pediatric Research Center, Helsinki University Central Hospital, University of Helsinki, Helsinki, Finland
| | - Kristiina Aalto
- New Children’s Hospital, Pediatric Research Center, Helsinki University Central Hospital, University of Helsinki, Helsinki, Finland
| | - Marite Rygg
- Department of Clinical and Molecular Medicine, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
- Department of Pediatrics, St. Olavs Hospital, Trondheim, Norway
| | - Susan Nielsen
- Department of Pediatrics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Anders Fasth
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lillemor Berntson
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
| | - Ellen Nordal
- Department of Pediatrics, University Hospital of North Norway, and Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Troels Herlin
- Department of Pediatrics, Aarhus University Hospital, Palle Juul-Jensens Blvd. 99, 8200 Aarhus N, Denmark
| | - for the Nordic Study Group of Pediatric Rheumatology (NoSPeR)
- Department of Pediatrics, Aarhus University Hospital, Palle Juul-Jensens Blvd. 99, 8200 Aarhus N, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Pediatrics, University Hospital of North Norway, and Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
- Department of Clinical and Molecular Medicine, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
- Department of Pediatrics, Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- Department of Pediatrics, Ryhov County Hospital, Jonkoping, Sweden
- New Children’s Hospital, Pediatric Research Center, Helsinki University Central Hospital, University of Helsinki, Helsinki, Finland
- Department of Clinical and Molecular Medicine, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
- Department of Pediatrics, St. Olavs Hospital, Trondheim, Norway
- Department of Pediatrics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
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5
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Abstract
Platelets play important roles in blood clotting, hemostasis and wound repair, while more and more research show that platelets also have significant contributions in the process of inflammation. Rheumatoid arthritis is a chronic systemic inflammatory autoimmune disease. Platelet microparticles, which are membrane vesicles shed by activated platelets, are reported to amplify inflammation in Rheumatoid arthritis. Here we show that either platelet-specific deletion of Rac1 (Rac1-/-) or Rac1-specific inhibitor NSC23766 dramatically inhibit platelet-derived microparticles formation. As we all know, collagen-induced arthritis (CIA) mouse model is the most common autoimmune model of rheumatoid arthritis. Interestingly, NSC23766 alleviated the process of collagen-induced arthritis of DBA mice in vivo, including the reduced hind paw thickness and ankle stiffness, the reduction of arthritic scores and incidence of arthritis. Our work also found that NSC23766-treated CIA mouse spleen is less swollen and contains less enlarged white pulp than PBS control. The histological analysis shows that NSC23766-treated but not solvent control improve the cartilage erosion symptom in the joint of CIA mouse. Interestingly, platelet microparticles in the peripheral blood of NSC23766-treated CIA mice were decreased significantly compared with PBS-treated CIA mice. In conclusion, our work demonstrated that Rac1 inhibition alleviates collagen-induced arthritis through the decrease of platelet microparticles' release. In short, Rac1 aggravate the rheumatoid arthritis deterioration through the regulation of platelet microparticles formation.
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Affiliation(s)
- Xue Chen
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai, China
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6
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Holers VM, Banda NK. Complement in the Initiation and Evolution of Rheumatoid Arthritis. Front Immunol 2018; 9:1057. [PMID: 29892280 PMCID: PMC5985368 DOI: 10.3389/fimmu.2018.01057] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 04/27/2018] [Indexed: 01/03/2023] Open
Abstract
The complement system is a major component of the immune system and plays a central role in many protective immune processes, including circulating immune complex processing and clearance, recognition of foreign antigens, modulation of humoral and cellular immunity, removal of apoptotic and dead cells, and engagement of injury resolving and tissue regeneration processes. In stark contrast to these beneficial roles, however, inadequately controlled complement activation underlies the pathogenesis of human inflammatory and autoimmune diseases, including rheumatoid arthritis (RA) where the cartilage, bone, and synovium are targeted. Recent studies of this disease have demonstrated that the autoimmune response evolves over time in an asymptomatic preclinical phase that is associated with mucosal inflammation. Notably, experimental models of this disease have demonstrated that each of the three major complement activation pathways plays an important role in recognition of injured joint tissue, although the lectin and amplification pathways exhibit particularly impactful roles in the initiation and amplification of damage. Herein, we review the complement system and focus on its multi-factorial role in human patients with RA and experimental murine models. This understanding will be important to the successful integration of the emerging complement therapeutics pipeline into clinical care for patients with RA.
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Affiliation(s)
| | - Nirmal K. Banda
- Division of Rheumatology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
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7
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Mimura T, Kondo Y, Ohta A, Iwamoto M, Ota A, Okamoto N, Kawaguchi Y, Kono H, Takasaki Y, Takei S, Nishimoto N, Fujimoto M, Asanuma YF, Mimori A, Okiyama N, Kaneko S, Takahashi H, Yokosawa M, Sumida T. Evidence-based clinical practice guideline for adult Still’s disease. Mod Rheumatol 2018; 28:736-757. [DOI: 10.1080/14397595.2018.1465633] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Toshihide Mimura
- Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
- Center for Intractable Diseases, Saitama Medical University, Saitama, Japan
| | - Yuya Kondo
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Akihide Ohta
- Faculty of Medicine, Saga University, Saga, Japan
| | - Masahiro Iwamoto
- Department of Internal Medicine, Division of Rheumatology/Clinical Immunology, Jichi Medical University, Tochigi, Japan
| | - Akiko Ota
- Department of Social Medicine, Faculty of Medicine, Division of Public Health, Saitama Medical University, Saitama, Japan
| | - Nami Okamoto
- Department of Pediatrics, Osaka Medical College, Osaka, Japan
| | - Yasushi Kawaguchi
- Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hajime Kono
- Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Yoshinari Takasaki
- Department of Rheumatology, Juntendo University Koshigaya Hospital, Saitama, Japan
| | - Shuji Takei
- Faculty of Medicine, School of Health Sciences, Kagoshima University, Kagoshima, Japan
| | - Norihiro Nishimoto
- Department of Molecular Regulation for Intractable Diseases, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yu Funakubo Asanuma
- Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
| | - Akio Mimori
- Department of Rheumatology, Iwate Prefectural Central Hospital, Iwate, Japan
| | - Naoko Okiyama
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Shunta Kaneko
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Hiroyuki Takahashi
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masahiro Yokosawa
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Takayuki Sumida
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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8
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Sadik CD, Miyabe Y, Sezin T, Luster AD. The critical role of C5a as an initiator of neutrophil-mediated autoimmune inflammation of the joint and skin. Semin Immunol 2018; 37:21-29. [PMID: 29602515 DOI: 10.1016/j.smim.2018.03.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/18/2018] [Accepted: 03/20/2018] [Indexed: 01/15/2023]
Abstract
The deposition of IgG autoantibodies in peripheral tissues and the subsequent activation of the complement system, which leads to the accumulation of the anaphylatoxin C5a in these tissues, is a common hallmark of diverse autoimmune diseases, including rheumatoid arthritis (RA) and pemphigoid diseases (PDs). C5a is a potent chemoattractant for granulocytes and mice deficient in its precursor C5 or its receptor C5aR1 are resistant to granulocyte recruitment and, consequently, to tissue inflammation in several models of autoimmune diseases. However, the mechanism whereby C5a/C5aR regulates granulocyte recruitment in these diseases has remained elusive. Mechanistic studies over the past five years into the role of C5a/C5aR1 in the K/BxN serum arthritis mouse model have provided novel insights into the mechanisms C5a/C5aR1 engages to initiate granulocyte recruitment into the joint. It is now established that the critical actions of C5a/C5aR1 do not proceed in the joint itself, but on the luminal endothelial surface of the joint vasculature, where C5a/C5aR1 mediate the arrest of neutrophils on the endothelium by activating β2 integrin. Then, C5a/C5aR1 induces the release of leukotriene B4 (LTB4) from the arrested neutrophils. The latter, subsequently, initiates by autocrine/paracrine actions via its receptor BLT1 the egress of neutrophils from the blood vessel lumen into the interstitial. Compelling evidence suggests that this C5a/C5aR1-LTB4/BLT1 axis driving granulocyte recruitment in arthritis may represent a more generalizable biological principle critically regulating effector cell recruitment in other IgG autoantibody-induced diseases, such as in pemphigoid diseases. Thus, dual inhibition of C5a and LTB4, as implemented in nature by the lipocalin coversin in the soft-tick Ornithodoros moubata, may constitute a most effective therapeutic principle for the treatment of IgG autoantibody-driven diseases.
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Affiliation(s)
- Christian D Sadik
- Department of Dermatology, Allergy, and Venereology University of Lübeck, 23538, Lübeck, Germany.
| | - Yoshishige Miyabe
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Tanya Sezin
- Department of Dermatology, Allergy, and Venereology University of Lübeck, 23538, Lübeck, Germany
| | - Andrew D Luster
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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9
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Ramanathan K, Glaser A, Lythgoe H, Ong J, Beresford MW, Midgley A, Wright HL. Neutrophil activation signature in juvenile idiopathic arthritis indicates the presence of low-density granulocytes. Rheumatology (Oxford) 2017; 57:488-498. [DOI: 10.1093/rheumatology/kex441] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Kavitha Ramanathan
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Institute in the Park, Alder Hey Children’s NHS Foundation Trust Hospital, Eaton Road
| | - Anna Glaser
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Institute in the Park, Alder Hey Children’s NHS Foundation Trust Hospital, Eaton Road
| | - Hanna Lythgoe
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Institute in the Park, Alder Hey Children’s NHS Foundation Trust Hospital, Eaton Road
- Department of Paediatric Rheumatology, Alder Hey Children’s NHS Foundation Trust
| | - Joanne Ong
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Institute in the Park, Alder Hey Children’s NHS Foundation Trust Hospital, Eaton Road
| | - Michael W Beresford
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Institute in the Park, Alder Hey Children’s NHS Foundation Trust Hospital, Eaton Road
- Department of Paediatric Rheumatology, Alder Hey Children’s NHS Foundation Trust
| | - Angela Midgley
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Institute in the Park, Alder Hey Children’s NHS Foundation Trust Hospital, Eaton Road
| | - Helen L Wright
- Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, William Henry Duncan Building, Liverpool, UK
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10
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Miyabe Y, Miyabe C, Murooka TT, Kim EY, Newton GA, Kim ND, Haribabu B, Luscinskas FW, Mempel TR, Luster AD. Complement C5a Receptor is the Key Initiator of Neutrophil Adhesion Igniting Immune Complex-induced Arthritis. Sci Immunol 2017; 2. [PMID: 28529998 DOI: 10.1126/sciimmunol.aaj2195] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The deposition of immune complexes (IC) in tissues induces a "type III hypersensitivity" that results in tissue damage and underlies the pathogenesis of many autoimmune diseases. The neutrophil is the first immune cell recruited into sites of IC deposition and plays a critical role in shaping the overall tissue response. However, the mechanism by which IC initiate and propagate neutrophil infiltration into tissue is not known. Here, using intravital multiphoton joint imaging of IC-induced arthritis in live mice, we found that the complement C5a receptor (C5aR) was the key initiator of neutrophil adhesion on joint endothelium. C5a presented on joint endothelium induced β2 integrin-dependent neutrophil arrest, facilitating neutrophil spreading and transition to crawling, and subsequent leukotriene B4 receptor (BLT1)-mediated extravasation of the first neutrophils. The chemokine receptor CCR1 promoted neutrophil crawling on the joint endothelium while CXCR2 amplified late neutrophil recruitment and survival once in the joint. Thus, imaging arthritis has defined a new paradigm for type III hypersensitivity where C5a directly initiates neutrophil adhesion on the joint endothelium igniting inflammation.
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Affiliation(s)
- Yoshishige Miyabe
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Chie Miyabe
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Thomas T Murooka
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Edward Y Kim
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gail A Newton
- Vascular Research Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nancy D Kim
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Bodduluri Haribabu
- James Graham Brown Cancer Center, University of Louisville, Louisville, Kentucky, USA
| | - Francis W Luscinskas
- Vascular Research Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Thorsten R Mempel
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Andrew D Luster
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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11
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Karsten CM, Köhl J. The immunoglobulin, IgG Fc receptor and complement triangle in autoimmune diseases. Immunobiology 2013; 217:1067-79. [PMID: 22964232 DOI: 10.1016/j.imbio.2012.07.015] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 07/18/2012] [Accepted: 07/18/2012] [Indexed: 01/19/2023]
Abstract
Immunoglobulin G (IgG)-mediated activation of complement and IgG Fc receptors (FcγRs) are important defense mechanisms of the innate immune system to ward off infections. However, the same mechanisms can drive severe and harmful inflammation, when IgG antibodies react with self-antigens in solution or tissues, as described for several autoimmune diseases including systemic lupus erythematosus, rheumatoid arthritis, and immune vasculitis. More specifically, IgG immune complexes (ICs) can activate all three pathways of the complement system resulting in the generation of C3 and C5 cleavage products that can activate a panel of different complement receptors on innate and adaptive immune cells. Importantly, complement and FcγRs are often co-expressed on inflammatory immune cells such as neutrophils, monocytes, macrophages or dendritic cells and act in concert to mediate the inflammatory response in autoimmune diseases. In this context, the cross-talk between the receptor for the anaphylatoxin C5a, i.e. C5ar1 (CD88) and FcγRs is of major importance. Recent data suggest a model of bidirectional regulation, in which CD88 acts upstream of FcγRs and sets the threshold for FcγR-dependent effector responses by regulating the ratio between activating and inhibitory FcγRs. Vice versa, FcγR ligation can either amplify or block C5aR-mediated effector functions, depending on whether IgG IC aggregate activating or inhibitory FcγRs. Further, complement and FcγRs cooperate on B cells and on follicular dendritic cells to regulate the development of autoreactive B cells, their differentiation into plasma cells and, eventually, the production of autoantibodies. Here, we will give an update on recent findings regarding this complex regulatory network between complement and FcγRs, which may also regulate the inflammatory response in allergy, cancer and infection.
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Affiliation(s)
- Christian M Karsten
- Institute for Systemic Inflammation Research, University of Lübeck, 23538 Lübeck, Germany
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12
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Up Regulated Complement and Fc Receptors in Juvenile Idiopathic Arthritis and Correlation with Disease Phenotype. J Clin Immunol 2012; 32:540-50. [DOI: 10.1007/s10875-012-9657-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Accepted: 01/19/2012] [Indexed: 12/28/2022]
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13
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Trouw LA, Böhringer S, Daha NA, Stahl EA, Raychaudhuri S, Kurreeman FA, Stoeken-Rijsbergen G, Houwing-Duistermaat JJ, Huizinga TW, Toes RE. The major risk alleles of age-related macular degeneration (AMD) in CFH do not play a major role in rheumatoid arthritis (RA). Clin Exp Immunol 2012; 166:333-7. [PMID: 22059990 DOI: 10.1111/j.1365-2249.2011.04482.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Because activation of the alternative pathway (AP) of the complement system is an important aspect of both age-related macular degeneration (AMD) and rheumatoid arthritis (RA), we wished to address the question whether genetic risk factors of the AP inhibitor complement factor H (CFH) for AMD would also be risk factors for RA. For this purpose we genotyped single nucleotide polymorphisms (SNPs) in a Dutch set of RA patients and controls. Similarly, a meta-analysis using a Spanish cohort of RA as well as six large genome-wide association studies (GWAS) studies was performed. For these SNPs we analysed more than 6000 patients and 20,000 controls. The CFH variants, I62V, Y402H, IVS1 and IVS10, known to associate strongly with AMD, did not show a significant association with the risk of developing RA despite a strong statistical power to detect such differences. In conclusion, the major risk alleles of AMD in CFH do not have a similar effect on developing RA.
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Affiliation(s)
- L A Trouw
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.
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14
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Affiliation(s)
- Kwang Nam Kim
- Department of Pediatrics, College of Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
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15
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Di Muzio G, Perricone C, Ballanti E, Kroegler B, Greco E, Novelli L, Conigliaro P, Cipriani P, Giacomelli R, Perricone R. Complement system and rheumatoid arthritis: relationships with autoantibodies, serological, clinical features, and anti-TNF treatment. Int J Immunopathol Pharmacol 2011; 24:357-66. [PMID: 21658310 DOI: 10.1177/039463201102400209] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Autoantibodies (rheumatoid factor, RF; anti-citrullinated-protein antibodies, ACPA) and complement system are involved in rheumatoid arthritis (RA). ACPA and anti-TNF agents are capable of in vitro modulating complement activity. We investigated the relationships between complement, autoantibodies, and anti-TNF treatment in vivo. One-hundred fourteen RA patients (89F/25M), diagnosed according to 1987 ACR criteria, and 30 healthy controls were enrolled. Serological analysis included ESR, CRP, complement C3, C4 and CH50, RF and ACPA (ELISA, cut-off>20 U/ml). Split-products (SP) of C3 and B were studied by immunoelectrophoresis/counterimmunoelectrophoresis. Seventy-six patients started anti-TNF treatment and were studied at baseline and after 22 weeks. Disease activity was measured with DAS28 and response to therapy with EULAR criteria. At baseline, RA patients showed significantly higher levels of C3 and C4 than controls (C3 127.9±26.5 vs 110±25 mg/dl, P=0.0012; C4 29.7±10.2 vs 22.7±8.3mg/dl, P=0.0003). No differences in C3, C4 and CH50 levels were observed between ACPA+ (n=76) and ACPA- (n=38) patients. After 22 weeks of anti-TNF, C3, C4 and RF were significantly reduced (P<0.003, <0.005 and <0.04, respectively) and RF changes showed negative correlation with CH50. SP of C3 and B were observed neither at baseline nor after 22 weeks. DAS28 significantly improved after 22 weeks. Patients showing higher baseline C3 or lower reduction of C3 levels after 22 weeks had a worse EULAR outcome (X2=22.793, P<0.001). RF levels seem to correlate with complement CH50. The presence of high levels of C3 in RA patients may reflect a pro-inflammatory status and represent a negative prognostic factor for anti-TNF therapy.
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Affiliation(s)
- G Di Muzio
- Rheumatology, Allergology and Clinical Immunology, Department of Internal Medicine, University of Rome Tor Vergata, Rome, Italy
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16
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Role of the complement system in rheumatoid arthritis and psoriatic arthritis: Relationship with anti-TNF inhibitors. Autoimmun Rev 2011; 10:617-23. [DOI: 10.1016/j.autrev.2011.04.012] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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17
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Singh A, Vastert SJ, Prakken BJ, Illges H. Decreased levels of sCD21 and sCD23 in blood of patients with systemic-juvenile arthritis, polyarticular-juvenile arthritis, and pauciarticular-juvenile arthritis. Rheumatol Int 2011; 32:1581-7. [PMID: 21328056 DOI: 10.1007/s00296-011-1830-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Accepted: 01/30/2011] [Indexed: 11/28/2022]
Abstract
A soluble form of CD21 (sCD21) and CD23 (sCD23) is released from the surface of human white blood cells upon shedding of the extracellular domain. sCD21 circulates in a complex with cleavage fragments of C3 and sCD23, which were previously identified as ligands of membrane and soluble CD21. sCD21 seems to be a marker of chronic inflammatory disease. To assess the sCD21 and sCD23 status in patients with subsets of juvenile arthritis (JA), we determined plasma levels sCD21 and sCD23. Plasma sCD21 levels were significantly decreased in all JA subtypes (O-JA P < 0.0068; P- and S-JA P < 0.0001) compared to healthy controls. Plasma sCD23 levels were significantly decreased in P-JA and S-JA (both P < 0.0001), but not in O-JA (P < 0.3843) in comparison with healthy controls, and data statistically analyzed. Our results suggest that pathological mechanisms relevant to autoimmune disorders interfere with the regulation of both CD21 and CD23 shedding.
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Affiliation(s)
- Anjana Singh
- Department of Natural Sciences, University of Applied Sciences, Immunology and Cell Biology, von-Liebig-Str. 20, 53359, Rheinbach, Germany
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18
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Mor-Vaknin N, Kappes F, Dick AE, Legendre M, Damoc C, Teitz-Tennenbaum S, Kwok R, Ferrando-May E, Adams BS, Markovitz DM. DEK in the synovium of patients with juvenile idiopathic arthritis: characterization of DEK antibodies and posttranslational modification of the DEK autoantigen. ARTHRITIS AND RHEUMATISM 2011; 63:556-67. [PMID: 21280010 PMCID: PMC3117121 DOI: 10.1002/art.30138] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE DEK is a nuclear phosphoprotein and autoantigen in a subset of children with juvenile idiopathic arthritis (JIA). Autoantibodies to DEK are also found in a broad spectrum of disorders associated with abnormal immune activation. We previously demonstrated that DEK is secreted by macrophages, is released by apoptotic T cells, and attracts leukocytes. Since DEK has been identified in the synovial fluid (SF) of patients with JIA, this study was undertaken to investigate how DEK protein and/or autoantibodies may contribute to the pathogenesis of JIA. METHODS DEK autoantibodies, immune complexes (ICs), and synovial macrophages were purified from the SF of patients with JIA. DEK autoantibodies and ICs were purified by affinity-column chromatography and analyzed by 2-dimensional gel electrophoresis, immunoblotting, and enzyme-linked immunosorbent assay. DEK in supernatants and exosomes was purified by serial centrifugation and immunoprecipitation with magnetic beads, and posttranslational modifications of DEK were identified by nano-liquid chromatography tandem mass spectrometry (nano-LC-MS/MS). RESULTS DEK autoantibodies and protein were found in the SF of patients with JIA. Secretion of DEK by synovial macrophages was observed both in a free form and via exosomes. DEK autoantibodies (IgG2) may activate the complement cascade, primarily recognize the C-terminal portion of DEK protein, and exhibit higher affinity for acetylated DEK. Consistent with these observations, DEK underwent acetylation on an unprecedented number of lysine residues, as demonstrated by nano-LC-MS/MS. CONCLUSION These results indicate that DEK can contribute directly to joint inflammation in JIA by generating ICs through high-affinity interaction between DEK and DEK autoantibodies, a process enhanced by acetylation of DEK in the inflamed joint.
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19
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Tüzün E, Kürtüncü M, Türkoğlu R, Içöz S, Pehlivan M, Birişik O, Eraksoy M, Akman-Demir G. Enhanced complement consumption in neuromyelitis optica and Behçet's disease patients. J Neuroimmunol 2011; 233:211-5. [PMID: 21215465 DOI: 10.1016/j.jneuroim.2010.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Revised: 10/08/2010] [Accepted: 11/27/2010] [Indexed: 10/18/2022]
Abstract
The complement system is essential in the pathogenesis of inflammatory central nervous system disorders. To investigate the involvement of complement pathways in neuromyelitis optica (NMO), levels of breakdown products for classical (C4d), alternative (FBb) and common (sC5b-9) pathways were measured in the sera of 28 NMO and control patients (30 Behçet's disease (BD), 29 multiple sclerosis (MS)) and 31 healthy controls by ELISA. Classical and/or alternative pathway consumption was enhanced in NMO and BD patients as compared to MS patients and healthy controls. Our results suggest that NBD and NMO differ from MS by the predominance of complement system involvement.
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Affiliation(s)
- Erdem Tüzün
- Istanbul University, Istanbul Faculty of Medicine, Department of Neurology, Istanbul, Turkey.
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20
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Tüzün E, Yılmaz V, Parman Y, Oflazer P, Deymeer F, Saruhan-Direskeneli G. Increased complement consumption in MuSK-antibody-positive myasthenia gravis patients. Med Princ Pract 2011; 20:581-3. [PMID: 21986021 DOI: 10.1159/000330031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Accepted: 02/23/2011] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate the activation of different complement pathways in myasthenia gravis (MG) subtypes. SUBJECTS AND METHODS Levels of complement breakdown products for different complement pathways were measured using ELISA in sera of acetylcholine receptor antibody (AChR-Ab)-positive (n = 21), muscle-specific receptor tyrosine kinase (MuSK)-Ab-positive (n = 23) and seronegative generalized MG patients (n = 21) and healthy controls (n = 22). Levels of factor Bb (FBb), the breakdown product of factor B, and C4d, the breakdown product of C4, were measured to evaluate the activity of the alternative and classical complement pathways, respectively. Serum iC3b levels were analyzed to assess total complement activity. The results were expressed as OD values. RESULTS MuSK-Ab-positive MG patients had a significantly higher mean concentration of serum FBb (0.638) than other MG subtypes (0.446 for AChR-Ab-positive, 0.537 for seronegative MG patients) and healthy controls (0.434) (p = 0.045). Mean serum iC3b (1.549-1.780) and C4d (0.364-0.395) levels were comparable among the groups. CONCLUSION Our results suggest that MuSK-Ab-positive MG patients might have a complement-activating serum factor and the alternative complement pathway might be involved in the pathogenesis of the disease.
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Affiliation(s)
- Erdem Tüzün
- Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
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21
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Kumar N, Kaur G, Tandon N, Mehra NK. Allotyping human complement factor B in Asian Indian type 1 diabetic patients. ACTA ACUST UNITED AC 2008; 72:517-24. [DOI: 10.1111/j.1399-0039.2008.01137.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Ishida YI, Yamashita K, Sasaki H, Takajou I, Kubuki Y, Morishita K, Tsubouchi H, Okayama A. Activation of complement system in adult T-cell leukemia (ATL) occurs mainly through lectin pathway: A serum proteomic approach using mass spectrometry. Cancer Lett 2008; 271:167-77. [DOI: 10.1016/j.canlet.2008.06.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2008] [Revised: 05/29/2008] [Accepted: 06/02/2008] [Indexed: 01/15/2023]
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23
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Bernstein IL, Li JT, Bernstein DI, Hamilton R, Spector SL, Tan R, Sicherer S, Golden DBK, Khan DA, Nicklas RA, Portnoy JM, Blessing-Moore J, Cox L, Lang DM, Oppenheimer J, Randolph CC, Schuller DE, Tilles SA, Wallace DV, Levetin E, Weber R. Allergy diagnostic testing: an updated practice parameter. Ann Allergy Asthma Immunol 2008; 100:S1-148. [PMID: 18431959 DOI: 10.1016/s1081-1206(10)60305-5] [Citation(s) in RCA: 291] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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24
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Abstract
Complement activation contributes to a pathological process in a number of autoimmune and inflammatory diseases, including rheumatoid arthritis (RA). In this review we summarize current knowledge of complement contribution to RA, based on clinical observations in patients and in vivo animal models, as well as on experiments in vitro aiming at elucidation of underlying molecular mechanisms. There is strong evidence that both the classical and the alternative pathways of complement are pathologically activated during RA as well as in animal models for RA. The classical pathway can be initiated by several triggers present in the inflamed joint such as deposited autoantibodies, dying cells, and exposed cartilage proteins such as fibromodulin. B cells producing autoantibodies, which in turn form immune complexes, contribute to RA pathogenesis partly via activation of complement. It appears that anaphylatoxin C5a is the main product of complement activation responsible for tissue damage in RA although deposition of membrane attack complex as well as opsonization with fragments of C3b are also important. Success of complement inhibition in the experimental models described so far encourages novel therapeutic approaches to the treatment of human RA.
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Affiliation(s)
- Marcin Okroj
- Lund University, Department of Laboratory Medicine, University Hospital Malmö, Malmö, Sweden
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25
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Solomon S, Kassahn D, Illges H. The role of the complement and the Fc gamma R system in the pathogenesis of arthritis. Arthritis Res Ther 2005; 7:129-35. [PMID: 15987494 PMCID: PMC1175042 DOI: 10.1186/ar1761] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Autoantibodies in sera from patients with autoimmune diseases have long been known and have become diagnostic tools. Analysis of their functional role again became popular with the availability of mice mutant for several genes of the complement and Fcγ receptor (FcγR) systems. Evidence from different inflammatory models suggests that both systems are interconnected in a hierarchical way. The complement system mediators such as complement component 5a (C5a) might be crucial in the communication between the complement system and FcγR-expressing cells. The split complement protein C5a is known to inactivate cells by its G-protein-coupled receptor and to be involved in the transcriptional regulation of FcγRs, thereby contributing to the complex regulation of autoimmune disease.
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Affiliation(s)
- Samuel Solomon
- Immunology, Department of Biology, Faculty of Sciences, University of Konstanz, Konstanz, Germany
| | - Daniela Kassahn
- Immunology, Department of Biology, Faculty of Sciences, University of Konstanz, Konstanz, Germany
| | - Harald Illges
- Immunology, Department of Biology, Faculty of Sciences, University of Konstanz, Konstanz, Germany
- Biotechnology Institute Thurgau, Tägerwilen, Switzerland
- University of Applied Sciences, Department of Natural Sciences, Immunology and Cell Biology, Rheinbach, Germany
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26
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Masilamani M, Nowack R, Witte T, Schlesier M, Warnatz K, Glocker MO, Peter HH, Illges H. Reduction of soluble complement receptor 2/CD21 in systemic lupus erythomatosus and Sjogren's syndrome but not juvenile arthritis. Scand J Immunol 2005; 60:625-30. [PMID: 15584974 DOI: 10.1111/j.0300-9475.2004.01494.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A soluble form of the complement receptor CD21 (sCD21) is shed from the lymphocyte surface. The amount of sCD21 in serum may modulate immunity as sCD21 levels are correlated with several clinical conditions. We report here the serum levels of sCD21 in juvenile arthritis (JA), systemic lupus erythematosus (SLE) and Sjogren's syndrome (SS). Using enzyme-linked immunosorbent assay, we determined sCD21 levels in SLE, SS and JA patients. Mann-Whitney test for nonparametric two-tail P value was performed to obtain statistical significance. Cytometrical analysis of synovial fluid leucocytes of JA patients was done on a FACSsort. While sCD21 levels in SLE and SS are reduced to levels previously found in rheumatoid arthritis (RA), JA sCD21 levels were normal. sCD21 levels did not correlate with clinical parameters and immunophenotype of synovial cells. CD4 T cells in the synovium were almost all of the CD45RO memory type and 13 of 40 patients displayed synovial expansion of gammadeltaT cells. CD21 shedding in JA differs from RA/SS/SLE. JA sCD21 levels in synovial fluid are always lower compared to blood levels of the same patients. Analysis of JA synovial T cells indicates a T-cell driven response.
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Affiliation(s)
- M Masilamani
- Immunology, Department of Biology, Faculty of Sciences, University of Konstanz, Konstanz, Germany
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27
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Lescaut W, Brocq O, Albert C, Plubel Y, Flory P, Euller-Ziegler L. Polyarthrite idiopathique juvénile chez des jumeaux monozygotes associée à un déficit congénital partiel en C4. Rev Med Interne 2004; 25:604-6. [PMID: 15276295 DOI: 10.1016/j.revmed.2004.04.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2003] [Accepted: 04/07/2004] [Indexed: 11/19/2022]
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28
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Friese MA, Manuelian T, Junnikkala S, Hellwage J, Meri S, Peter HH, Gordon DL, Eibel H, Zipfel PF. Release of endogenous anti-inflammatory complement regulators FHL-1 and factor H protects synovial fibroblasts during rheumatoid arthritis. Clin Exp Immunol 2003; 132:485-95. [PMID: 12780697 PMCID: PMC1808733 DOI: 10.1046/j.1365-2249.2003.02173.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Rheumatoid arthritis is a chronic inflammatory disease of unknown aetiology predominantly affecting cells and tissues of synovial joints. Here we show that the two important complement regulators FHL-1 and factor H play a protective anti-inflammatory role in rheumatoid arthritis. Expression analyses at the mRNA- and protein level show in vitro expression and secretion of both regulators by synovial fibroblasts derived from patients with rheumatoid arthritis. Similarly the two regulators are synthesized in vivo in diseased synovial tissue, and in particular synovial lining cells express high levels of FHL-1. The anti-inflammatory role of these regulators in rheumatoid arthritis is highlighted by their induction with IFN-gamma and dexamethasone, whilst the pro-inflammatory cytokine TNF-alpha had no effect. Transient transfection experiments with various FHL-1/factor H promoter-luciferase reporter constructs into cells of distinct origin show independent cell and tissue specific promoter regulated transcription of these two regulators. The inducible expression, specifically of FHL-1 has physiological consequences. By binding directly to surfaces the released proteins protect cells from inflammatory damage and complement-mediated cell lysis. This study shows a novel protective and anti-inflammatory role of the two important complement regulators FHL-1 and factor H in rheumatoid arthritis and suggests a disease controlling role of the two proteins.
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Affiliation(s)
- M A Friese
- Research Group of Biomolecular Medicine, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
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29
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Knijff-Dutmer EAJ, Koerts J, Nieuwland R, Kalsbeek-Batenburg EM, van de Laar MAFJ. Elevated levels of platelet microparticles are associated with disease activity in rheumatoid arthritis. ARTHRITIS AND RHEUMATISM 2002; 46:1498-503. [PMID: 12115179 DOI: 10.1002/art.10312] [Citation(s) in RCA: 182] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Platelets are involved in various thrombotic events, often by means of platelet-derived microparticles (PMPs). It is likely that platelets are also involved in inflammation. Because inflammatory processes play a central role in rheumatoid arthritis (RA), we sought to determine whether PMPs are present in this disease. METHODS This descriptive, cross-sectional study included 19 RA patients and 10 healthy controls. Nine of the patients had active RA (erythrocyte sedimentation rate [ESR] > or =28 mm/hour and/or C-reactive protein [CRP] level > or =28 mg/liter, > or =9 painful joints, and > or =6 swollen joints), and 10 had inactive disease (ESR < or =27 mm/hour, CRP < or =27 mg/liter, no tender joints, and no swollen joints). Platelet counts and PMP numbers were determined using cell counter and flow cytometry, respectively. RESULTS Platelet counts in the 3 groups were similar. However, levels of PMPs in RA patients were significantly higher than those in healthy controls (median 616 versus 118 x 10(6)/liter; P = 0.005). PMP levels were higher in patients with active RA than in those with inactive RA (median 2,104 versus 504 x 10(6)/liter; P > 0.05). Moreover, PMP levels correlated with disease activity (r = 0.67, P = 0.05). CONCLUSION PMPs are associated with RA, and PMP levels are correlated with disease activity. Thus, platelets probably play a part in the inflammatory process of RA by means of PMPs. Given the importance of PMPs in cardiovascular diseases, this may be one reason for the enhanced cardiovascular morbidity and mortality in RA.
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30
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Ji H, Ohmura K, Mahmood U, Lee DM, Hofhuis FMA, Boackle SA, Takahashi K, Holers VM, Walport M, Gerard C, Ezekowitz A, Carroll MC, Brenner M, Weissleder R, Verbeek JS, Duchatelle V, Degott C, Benoist C, Mathis D. Arthritis critically dependent on innate immune system players. Immunity 2002; 16:157-68. [PMID: 11869678 DOI: 10.1016/s1074-7613(02)00275-3] [Citation(s) in RCA: 523] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
K/BxN T cell receptor transgenic mice are a model of inflammatory arthritis, similar to rheumatoid arthritis. Disease in these animals is focused specifically on the joints but stems from autoreactivity to a ubiquitously expressed antigen, glucose-6-phosphate isomerase (GPI). T and B cells are both required for disease initiation, but anti-GPI immunoglobulins (Igs), alone, can induce arthritis in lymphocyte-deficient recipients. Here, we show that the arthritogenic Igs act through both Fc receptors (in particular, FcgammaRIII) and the complement network (C5a). Surprisingly, the alternative pathway of complement activation is critical, while classical pathway components are entirely dispensable. We suggest that autoimmune disease, even one that is organ specific, can occur when mobilization of an adaptive immune response results in runaway activation of the innate response.
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MESH Headings
- Animals
- Antigens, CD/immunology
- Arthritis, Rheumatoid/genetics
- Arthritis, Rheumatoid/immunology
- Complement System Proteins/genetics
- Complement System Proteins/immunology
- Disease Models, Animal
- Immune System
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Receptor, Anaphylatoxin C5a
- Receptors, Complement/immunology
- Receptors, IgG/genetics
- Receptors, IgG/immunology
- Signal Transduction/immunology
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Affiliation(s)
- Hong Ji
- Section on Immunology and Immunogenetics, Joslin Diabetes Center, Boston, MA 02215, USA
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31
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Abstract
A significant amount of work has been performed over the past 2 years further defining the pathophysiology of juvenile idiopathic arthritis (JIA). The development of the biologic agent etanercept represents successful translational research. This genetically engineered fusion protein targets tumor necrosis factor, binding and inactivating this important component of inflammation. This advance has been accompanied by refinements in classification, as well as further elucidation of the natural disease course of JIA. Recent work continues to demonstrate the widespread nature of JIA, as well as its severity in adulthood.
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Affiliation(s)
- D T Kulas
- Duke University Medical Center, Department of Pediatrics, Durham, North Carolina 27710, USA
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