1
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Wallace BI, Cooney L, Fox DA. New molecular targets in the treatment of rheumatoid arthritis. Curr Opin Rheumatol 2024; 36:235-240. [PMID: 38165286 DOI: 10.1097/bor.0000000000001000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
PURPOSE OF REVIEW This review will discuss selected emerging molecular targets and associated potential therapeutic agents for rheumatoid arthritis (RA)-directed treatment. RECENT FINDINGS Agents in active development for RA treatment include those targeted to CD40 and CD40 ligand, programmed death protein 1 (PD-1), and granulocyte-macrophage colony-stimulating factor (GM-CSF). Several other molecules with a strong theoretical role in RA pathogenesis and/or demonstrated efficacy in other autoimmune diseases are also being evaluated as potential drug targets in preclinical or translational studies in RA. These targets include interleukin 1 receptor associated kinases 1 and 4 (IRAK1, IRAK4), tyrosine kinase 2 (Tyk2), bradykinin receptor 1 (B1R), OX40 and OX40 ligand. SUMMARY Identification of molecular targets for RA treatment remains an active area of investigation, with multiple therapeutic agents in clinical and preclinical development.
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Affiliation(s)
- Beth I Wallace
- Division of Rheumatology, Department of Internal Medicine, University of Michigan
- Center for Clinical Management Research, VA Ann Arbor Healthcare System
- Rheumatology Section, VA Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
| | - Laura Cooney
- Division of Rheumatology, Department of Internal Medicine, University of Michigan
| | - David A Fox
- Division of Rheumatology, Department of Internal Medicine, University of Michigan
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2
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Schulert GS, Kessel C. Molecular Pathways in the Pathogenesis of Systemic Juvenile Idiopathic Arthritis. Rheum Dis Clin North Am 2023; 49:895-911. [PMID: 37821202 DOI: 10.1016/j.rdc.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Systemic juvenile idiopathic arthritis (sJIA) is a rare childhood chronic inflammatory disorder with risk for life-threatening complications including macrophage activation syndrome and lung disease. At onset, sJIA pathogenesis resembles that of the autoinflammatory periodic fever syndromes with marked innate immune activation, expansion of neutrophils and monocytes, and high levels of interleukin-18. Here, we review the current conceptual understanding of sJIA pathogenesis with a focus on both innate and adaptive immune pathways. Finally, we consider how recent progress toward understanding the immunologic basis of sJIA may support new therapies for refractory disease courses.
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Affiliation(s)
- Grant S Schulert
- Division of Rheumatology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 4010, Cincinnati, OH 45229, USA.
| | - Christoph Kessel
- Department of Pediatric Rheumatology and Immunology, Translational Inflammation Research, University Children's Hospital, Muenster, Germany
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3
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Wang Y, Wang J, Zheng W, Zhang J, Wang J, Jin T, Tao P, Wang Y, Liu C, Huang J, Lee PY, Yu X, Zhou Q. Identification of an IL-1 receptor mutation driving autoinflammation directs IL-1-targeted drug design. Immunity 2023:S1074-7613(23)00231-5. [PMID: 37315560 DOI: 10.1016/j.immuni.2023.05.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/27/2023] [Accepted: 05/17/2023] [Indexed: 06/16/2023]
Abstract
The interleukin 1 (IL-1) pathway signals through IL-1 receptor type 1 (IL-1R1) and emerges as a central mediator for systemic inflammation. Aberrant IL-1 signaling leads to a range of autoinflammatory diseases. Here, we identified a de novo missense variant in IL-1R1 (p.Lys131Glu) in a patient with chronic recurrent multifocal osteomyelitis (CRMO). Patient PBMCs showed strong inflammatory signatures, particularly in monocytes and neutrophils. The p.Lys131Glu substitution affected a critical positively charged amino acid, which disrupted the binding of the antagonist ligand, IL-1Ra, but not IL-1α or IL-1β. This resulted in unopposed IL-1 signaling. Mice with a homologous mutation exhibited similar hyperinflammation and greater susceptibility to collagen antibody-induced arthritis, accompanied with pathological osteoclastogenesis. Leveraging the biology of the mutation, we designed an IL-1 therapeutic, which traps IL-1β and IL-1α, but not IL-1Ra. Collectively, this work provides molecular insights and a potential drug for improved potency and specificity in treating IL-1-driven diseases.
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Affiliation(s)
- Yusha Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China; Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China
| | - Jun Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Wenjie Zheng
- Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
| | - Jiahui Zhang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Jinbo Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Taijie Jin
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Panfeng Tao
- Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China
| | - Yibo Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Chenlu Liu
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Jiqian Huang
- Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
| | - Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Xiaomin Yu
- Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China; Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University, Hangzhou 311121, Zhejiang, China; Kidney Disease Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang, China.
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China; Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China.
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4
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Kong JS, Jeong GH, Yoo SA. The use of animal models in rheumatoid arthritis research. JOURNAL OF YEUNGNAM MEDICAL SCIENCE 2023; 40:23-29. [PMID: 36411592 PMCID: PMC9946911 DOI: 10.12701/jyms.2022.00773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 10/27/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
The pathological hallmark of rheumatoid arthritis (RA) is a synovial pannus that comprises proliferating and invasive fibroblast-like synoviocytes, infiltrating inflammatory cells, and an associated neoangiogenic response. Animal models have been established to study these pathological features of human RA. Spontaneous and induced animal models of RA primarily reflect inflammatory aspects of the disease. Among various induced animal models, collagen-induced arthritis (CIA) and collagen antibody-induced arthritis (CAIA) models are widely used to study the pathogenesis of RA. Improved transplantation techniques for severe combined immunodeficiency (SCID) mouse models of RA can be used to evaluate the effectiveness of potential therapeutics in human tissues and cells. This review provides basic information on various animal models of RA, including CIA and CAIA. In addition, we describe a SCID mouse coimplantation model that can measure the long-distance migration of human RA synoviocytes and cartilage destruction induced by these cells.
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Affiliation(s)
- Jin-Sun Kong
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Center for Integrative Rheumatoid Transcriptomics and Dynamics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Gi Heon Jeong
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Center for Integrative Rheumatoid Transcriptomics and Dynamics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seung-Ah Yoo
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Center for Integrative Rheumatoid Transcriptomics and Dynamics, College of Medicine, The Catholic University of Korea, Seoul, Korea
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5
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Anang DC, Balzaretti G, van Kampen A, de Vries N, Klarenbeek PL. The Germinal Center Milieu in Rheumatoid Arthritis: The Immunological Drummer or Dancer? Int J Mol Sci 2021; 22:10514. [PMID: 34638855 PMCID: PMC8508581 DOI: 10.3390/ijms221910514] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 01/04/2023] Open
Abstract
Rheumatoid Arthritis (RA) is a chronic autoimmune disease characterized by joint inflammation, affecting approximately 1% of the general population. To alleviate symptoms and ameliorate joint damage, chronic use of immunosuppressives is needed. However, these treatments are only partially effective and may lead to unwanted side effects. Therefore, a more profound understanding of the pathophysiology might lead to more effective therapies, or better still, a cure. The presence of autoantibodies in RA indicates that B cells might have a pivotal role in the disease. This concept is further supported by the fact that a diverse antibody response to various arthritis-related epitopes is associated with arthritis development. In this context, attention has focused in recent years on the role of Germinal Centers (GCs) in RA. Since GCs act as the main anatomic location of somatic hypermutations, and, thus, contributing to the diversity and specificity of (auto) antibodies, it has been speculated that defects in germinal center reactions might be crucial in the initiation and maintenance of auto-immune events. In this paper, we discuss current evidence that various processes within GCs can result in the aberrant production of B cells that possess autoreactive properties and might result in the production of RA related autoantibodies. Secondly, we discuss various (pre-)clinical studies that have targeted various GC processes as novel therapies for RA treatment.
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Affiliation(s)
- Dornatien C. Anang
- Department of Rheumatology & Clinical Immunology, Amsterdam Rheumatology & Immunology Center, 1007 MB Amsterdam, The Netherlands; (D.C.A.); (G.B.); (P.L.K.)
- Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Giulia Balzaretti
- Department of Rheumatology & Clinical Immunology, Amsterdam Rheumatology & Immunology Center, 1007 MB Amsterdam, The Netherlands; (D.C.A.); (G.B.); (P.L.K.)
- Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Antoine van Kampen
- Department of Epidemiology and Data Science, Amsterdam Public Health Research Institute, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Niek de Vries
- Department of Rheumatology & Clinical Immunology, Amsterdam Rheumatology & Immunology Center, 1007 MB Amsterdam, The Netherlands; (D.C.A.); (G.B.); (P.L.K.)
- Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Paul L. Klarenbeek
- Department of Rheumatology & Clinical Immunology, Amsterdam Rheumatology & Immunology Center, 1007 MB Amsterdam, The Netherlands; (D.C.A.); (G.B.); (P.L.K.)
- Department of Rheumatology, Spaarne Gasthuis, Hoofdorp, 2000 AK Haarlem, The Netherlands
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6
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Levescot A, Chang MH, Schnell J, Nelson-Maney N, Yan J, Martínez-Bonet M, Grieshaber-Bouyer R, Lee PY, Wei K, Blaustein RB, Morris A, Wactor A, Iwakura Y, Lederer JA, Rao DA, Charles JF, Nigrovic PA. IL-1β-driven osteoclastogenic T regulatory cells accelerate bone erosion in arthritis. J Clin Invest 2021; 131:e141008. [PMID: 34343136 DOI: 10.1172/jci141008] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 07/22/2021] [Indexed: 11/17/2022] Open
Abstract
IL-1β is a pro-inflammatory mediator with roles in innate and adaptive immunity. Here we show that IL-1β contributes to autoimmune arthritis by inducing osteoclastogenic capacity in T regulatory cells (Tregs). Using mice with joint inflammation arising through deficiency of the IL-1 receptor antagonist (Il1rn-/-), we observed that IL-1β blockade attenuated disease more effectively in early arthritis than in established arthritis, especially with respect to bone erosion. Protection was accompanied by a reduction in synovial CD4+Foxp3+ Tregs that displayed preserved suppressive capacity and aerobic metabolism but aberrant expression of RANKL and a striking capacity to drive RANKL-dependent osteoclast differentiation. Both Il1rn-/- Tregs and wild-type Tregs differentiated with IL-1β accelerated bone erosion upon adoptive transfer. Human Tregs exhibited analogous differentiation, and corresponding RANKLhiFoxp3+ T cells could be identified in rheumatoid arthritis synovial tissue. Together, these findings identify IL-1β-induced osteoclastogenic Tregs (O-Tregs) as a contributor to bone erosion in arthritis.
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Affiliation(s)
- Anaïs Levescot
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Margaret H Chang
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Julia Schnell
- Department of Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - Nathan Nelson-Maney
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Jing Yan
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Marta Martínez-Bonet
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | | | - Pui Y Lee
- Division of Immunology, Boston's Children Hospital, Boston, United States of America
| | - Kevin Wei
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Rachel B Blaustein
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Allyn Morris
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Alexandra Wactor
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Yoichiro Iwakura
- Research Institute for Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - James A Lederer
- Department of Surgery, Brigham and Women's Hospital, Boston, United States of America
| | - Deepak A Rao
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Julia F Charles
- Department of Medicine, Brigham and Women's Hospital, Boston, United States of America
| | - Peter A Nigrovic
- Division of Immunology, Boston's Children Hospital, Boston, United States of America
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7
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Flevas DA, Papageorgiou MG, Drakopoulos P, Lambrou GI. The Role of Immune System Cells in Fracture Healing: Review of the Literature and Current Concepts. Cureus 2021. [DOI: 10.7759/cureus.14703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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8
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Inhibition of interleukin-6 signaling attenuates aortitis, left ventricular hypertrophy and arthritis in interleukin-1 receptor antagonist deficient mice. Clin Sci (Lond) 2021; 134:2771-2787. [PMID: 33064141 DOI: 10.1042/cs20201036] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/30/2020] [Accepted: 10/16/2020] [Indexed: 12/13/2022]
Abstract
The aim of the present study was to examine whether inhibition of Interleukin (IL)-6 signaling by MR16-1, an IL-6 receptor antibody, attenuates aortitis, cardiac hypertrophy, and arthritis in IL-1 receptor antagonist deficient (IL-1RA KO) mice. Four weeks old mice were intraperitoneally administered with either MR16-1 or non-immune IgG at dosages that were adjusted over time for 5 weeks. These mice were stratified into four groups: MR16-1 treatment groups, KO/MR low group (first 2.0 mg, following 0.5 mg/week, n=14) and KO/MR high group (first 4.0 mg, following 2.0 mg/week, n=19) in IL-1RA KO mice, and IgG treatment groups, KO/IgG group (first 2.0 mg, following 1.0 mg/week, n=22) in IL-1RA KO mice, and wild/IgG group (first 2.0 mg, following 1.0 mg/week, n=17) in wild mice. Aortitis, cardiac hypertrophy and arthropathy were histologically analyzed. Sixty-eight percent of the KO/IgG group developed aortitis (53% developed severe aortitis). In contrast, only 21% of the KO/MR high group developed mild aortitis, without severe aortitis (P<0.01, vs KO/IgG group). Infiltration of inflammatory cells, such as neutrophils, T cells, and macrophages, was frequently observed around aortic sinus of the KO/IgG group. Left ventricle and cardiomyocyte hypertrophy were observed in IL-1RA KO mice. Administration of high dosage of MR16-1 significantly suppressed cardiomyocyte hypertrophy. MR16-1 attenuated the incidence and severity of arthritis in IL-1RA KO mice in a dose-dependent manner. In conclusion, blockade of IL-6 signaling may exert a beneficial effect to attenuate severe aortitis, left ventricle hypertrophy, and arthritis.
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9
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Kessel C, Hedrich CM, Foell D. Innately Adaptive or Truly Autoimmune: Is There Something Unique About Systemic Juvenile Idiopathic Arthritis? Arthritis Rheumatol 2020; 72:210-219. [PMID: 31524322 DOI: 10.1002/art.41107] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 09/10/2019] [Indexed: 12/11/2022]
Abstract
Systemic juvenile idiopathic arthritis (JIA) is a form of arthritis in childhood that is initially dominated by innate immunity-driven systemic inflammation and is thus considered a polygenic autoinflammatory disease. However, systemic JIA can progress toward an adaptive immunity-driven afebrile arthritis. Based on this observation of biphasic disease progression, a "window of opportunity" for optimal, individualized and target-directed treatment has been proposed. This hypothesis requires testing, and in this review we summarize current evidence regarding molecular factors that may contribute to the progression from an initially predominantly autoinflammatory disease phenotype to autoimmune arthritis. We consider the involvement of innately adaptive γδ T cells and natural killer T cells that express γδ or αβ T cell receptors but cannot be classified as either purely innate or adaptive cells, versus classic B and T lymphocytes in this continuum. Finally, we discuss our understanding of how and why some primarily autoinflammatory conditions can progress toward autoimmune-mediated disorders over the disease course while others do not and how this knowledge may be used to offer individualized treatment.
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10
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Schinnerling K, Rosas C, Soto L, Thomas R, Aguillón JC. Humanized Mouse Models of Rheumatoid Arthritis for Studies on Immunopathogenesis and Preclinical Testing of Cell-Based Therapies. Front Immunol 2019; 10:203. [PMID: 30837986 PMCID: PMC6389733 DOI: 10.3389/fimmu.2019.00203] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/23/2019] [Indexed: 01/12/2023] Open
Abstract
Rodent models of rheumatoid arthritis (RA) have been used over decades to study the immunopathogenesis of the disease and to explore intervention strategies. Nevertheless, mouse models of RA reach their limit when it comes to testing of new therapeutic approaches such as cell-based therapies. Differences between the human and the murine immune system make it difficult to draw reliable conclusions about the success of immunotherapies. To overcome this issue, humanized mouse models have been established that mimic components of the human immune system in mice. Two main strategies have been pursued for humanization: the introduction of human transgenes such as human leukocyte antigen molecules or specific T cell receptors, and the generation of mouse/human chimera by transferring human cells or tissues into immunodeficient mice. Recently, both approaches have been combined to achieve more sophisticated humanized models of autoimmune diseases. This review discusses limitations of conventional mouse models of RA-like disease and provides a closer look into studies in humanized mice exploring their usefulness and necessity as preclinical models for testing of cell-based therapies in autoimmune diseases such as RA.
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Affiliation(s)
- Katina Schinnerling
- Programa Disciplinario de Inmunología, Immune Regulation and Tolerance Research Group, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile.,Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Carlos Rosas
- Departamento de Ciencias Morfológicas, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - Lilian Soto
- Programa Disciplinario de Inmunología, Immune Regulation and Tolerance Research Group, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile.,Unidad de Dolor, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Ranjeny Thomas
- Diamantina Institute, Translational Research Institute, Princess Alexandra Hospital, University of Queensland, Brisbane, QLD, Australia
| | - Juan Carlos Aguillón
- Programa Disciplinario de Inmunología, Immune Regulation and Tolerance Research Group, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile
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11
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Jenei-Lanzl Z, Meurer A, Zaucke F. Interleukin-1β signaling in osteoarthritis - chondrocytes in focus. Cell Signal 2018; 53:212-223. [PMID: 30312659 DOI: 10.1016/j.cellsig.2018.10.005] [Citation(s) in RCA: 237] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 10/07/2018] [Accepted: 10/08/2018] [Indexed: 12/20/2022]
Abstract
Osteoarthritis (OA) can be regarded as a chronic, painful and degenerative disease that affects all tissues of a joint and one of the major endpoints being loss of articular cartilage. In most cases, OA is associated with a variable degree of synovial inflammation. A variety of different cell types including chondrocytes, synovial fibroblasts, adipocytes, osteoblasts and osteoclasts as well as stem and immune cells are involved in catabolic and inflammatory processes but also in attempts to counteract the cartilage loss. At the molecular level, these changes are regulated by a complex network of proteolytic enzymes, chemokines and cytokines (for review: [1]). Here, interleukin-1 signaling (IL-1) plays a central role and its effects on the different cell types involved in OA are discussed in this review with a special focus on the chondrocyte.
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Affiliation(s)
- Zsuzsa Jenei-Lanzl
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopaedic University Hospital Friedrichsheim, Frankfurt/Main, Germany
| | - Andrea Meurer
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopaedic University Hospital Friedrichsheim, Frankfurt/Main, Germany
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopaedic University Hospital Friedrichsheim, Frankfurt/Main, Germany.
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12
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Tian C, Liu X, Zhu X, Cao Y, Deng N, Hasty KA, Stuart JM, Gu W, Jiao Y. Ifi204 as the most favored candidate gene that regulates susceptibility to spontaneous arthritis in mice deficient in IL-1ra. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Fruchon S, Poupot R. The ABP Dendrimer, a Drug-Candidate against Inflammatory Diseases That Triggers the Activation of Interleukin-10 Producing Immune Cells. Molecules 2018; 23:E1272. [PMID: 29799517 PMCID: PMC6100262 DOI: 10.3390/molecules23061272] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/21/2018] [Accepted: 05/22/2018] [Indexed: 12/16/2022] Open
Abstract
The ABP dendrimer, which is built on a phosphorus-based scaffold and bears twelve azabisphosphonate groups at its surface, is one of the dendrimers that has been shown to display immuno-modulatory and anti-inflammatory effects towards the human immune system. Its anti-inflammatory properties have been successfully challenged in animal models of inflammatory disorders. In this review, we trace the discovery and the evaluation of the therapeutic effects of the ABP dendrimer in three different animal models of both acute and chronic inflammatory diseases. We emphasize that its therapeutic effects rely on the enhancement of the production of Interleukin-10, the paradigm of anti-inflammatory cytokines, by different subsets of immune cells, such as monocytes/macrophages and CD4+ T lymphocytes.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/chemical synthesis
- Anti-Inflammatory Agents/pharmacology
- Antigens, CD/genetics
- Antigens, CD/immunology
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/genetics
- Arthritis, Rheumatoid/immunology
- Arthritis, Rheumatoid/pathology
- CD4-Positive T-Lymphocytes/drug effects
- CD4-Positive T-Lymphocytes/immunology
- Dendrimers/chemical synthesis
- Dendrimers/pharmacology
- Disease Models, Animal
- Encephalomyelitis, Autoimmune, Experimental/drug therapy
- Encephalomyelitis, Autoimmune, Experimental/genetics
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Gene Expression
- Humans
- Interleukin-10/genetics
- Interleukin-10/immunology
- Lymphocyte Activation/drug effects
- Mice
- Monocytes/drug effects
- Monocytes/immunology
- Receptors, Interleukin-1/deficiency
- Receptors, Interleukin-1/genetics
- Receptors, Interleukin-1/immunology
- Structure-Activity Relationship
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Affiliation(s)
- Séverine Fruchon
- INSERM, U1043, CNRS, U5282, Université de Toulouse, UPS, Centre de Physiopathologie de Toulouse-Purpan, F-31300 Toulouse, France.
| | - Rémy Poupot
- INSERM, U1043, CNRS, U5282, Université de Toulouse, UPS, Centre de Physiopathologie de Toulouse-Purpan, F-31300 Toulouse, France.
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14
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Gran S, Honold L, Fehler O, Zenker S, Eligehausen S, Kuhlmann MT, Geven E, den Bosch MV, van Lent P, Spiekermann C, Hermann S, Vogl T, Schäfers M, Roth J. Imaging, myeloid precursor immortalization, and genome editing for defining mechanisms of leukocyte recruitment in vivo. Theranostics 2018; 8:2407-2423. [PMID: 29721088 PMCID: PMC5928898 DOI: 10.7150/thno.23632] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 01/18/2018] [Indexed: 12/20/2022] Open
Abstract
Recruitment of leukocytes from the blood to sites of inflammation poses a promising target for new diagnostic and therapeutic approaches. We aimed to develop a novel method to non-invasively analyze molecular mechanisms of leukocyte migration in pre-clinical models of inflammation in vivo. Methods: We used the ER-HoxB8 system to transiently immortalize murine myeloid precursors from wildtype and CD18- as well as MRP14-deficient mice. A VLA4α-/- cell line was generated by CRISPR/Cas9-mediated gene editing. We analyzed the migration of wildtype and knockout leukocytes in vivo by optical and nuclear imaging in mice with irritant contact dermatitis, cutaneous granuloma, experimental arthritis and myocardial infarction. Results: Transient immortalization, gene editing and in vivo imaging can be combined to analyze migratory mechanisms of murine leukocytes, even for gene deletions resulting in lethal phenotypes in mice. We reliably confirmed known migratory defects of leukocytes deficient for the adhesion molecules CD18 or VLA4α. Also, using our new method we identified a new role of the most abundant calcium-binding proteins in phagocytes and major alarmins in many inflammatory diseases, MRP8 and MRP14, for transmigration in vivo. Conclusion: We provide a combinatorial approach to rapidly characterize molecular mechanisms of leukocyte recruitment in vivo, with the potential to aid in identification of diagnostic and therapeutic targets in inflammatory pathologies.
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15
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Abe Y, Nambu A, Yamaguchi S, Takamori A, Suto H, Hirose S, Yokosuka T, Nakae S, Sudo K. Role of interleukin-25 in development of spontaneous arthritis in interleukin-1 receptor antagonist-deficient mice. Biochem Biophys Rep 2017; 12:62-65. [PMID: 28955793 PMCID: PMC5613236 DOI: 10.1016/j.bbrep.2017.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 06/05/2017] [Accepted: 08/15/2017] [Indexed: 11/30/2022] Open
Abstract
Interleukin (IL)-25, which is a member of the IL-17 family of cytokines, induces production of such Th2 cytokines as IL-4, IL-5, IL-9 and/or IL-13 by various types of cells, including Th2 cells, Th9 cells and group 2 innate lymphoid cells (ILC2). On the other hand, IL-25 can suppress Th1- and Th17-associated immune responses by enhancing Th2-type immune responses. Supporting this, IL-25 is known to suppress development of experimental autoimmune encephalitis, which is an IL-17-mediated autoimmune disease in mice. However, the role of IL-25 in development of IL-17-mediated arthritis is not fully understood. Therefore, we investigated this using IL-1 receptor antagonist-deficient (IL-1Ra-/-) mice, which spontaneously develop IL-17-dependent arthritis. However, development of spontaneous arthritis (incidence rate, disease severity, proliferation of synovial cells, infiltration of PMNs, and bone erosion in joints) and differentiation of Th17 cells in draining lymph nodes in IL-25-/- IL-1Ra-/- mice were similar to in control IL-25+/+ IL-1Ra-/- mice. These observations indicate that IL-25 does not exert any inhibitory and/or pathogenic effect on development of IL-17-mediated spontaneous arthritis in IL-1Ra-/- mice. IL-25 is known to inhibit Th17 cell differentiation. IL-25 is known to suppress Th17-mediated autoimmune diseases in mice. IL-25 does not play any inhibitory and/or pathogenic role in IL-17-mediated arthritis.
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Affiliation(s)
- Yasuharu Abe
- Department of Immunology, Tokyo Medical University, Tokyo 160-8402, Japan.,Department of Pharmacy, Toyohashi Medical Center, National Hospital Organization, Aichi 440-8510, Japan
| | - Aya Nambu
- Laboratory of Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Sachiko Yamaguchi
- Laboratory of Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Ayako Takamori
- Laboratory of Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Hajime Suto
- Atopy Research Center, Juntendo University, Tokyo 113-8412, Japan
| | - Sachiko Hirose
- Toin Human Science and Technology Center, Department of Biomedical Engineering, Toin University of Yokohama, Yokohama 225-8502, Japan
| | - Tadashi Yokosuka
- Department of Immunology, Tokyo Medical University, Tokyo 160-8402, Japan
| | - Susumu Nakae
- Laboratory of Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan
| | - Katsuko Sudo
- Animal Research Center, Tokyo Medical University, Tokyo 160-8402, Japan
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16
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Abstract
PURPOSE OF REVIEW In the process of bone fracture healing, inflammation is thought to be an essential process that precedes bone formation and remodeling. We review recent studies on bone fracture healing from an osteoimmunological point of view. RECENT FINDINGS Based on previous observations that many types of immune cells infiltrate into the bone injury site and release a variety of molecules, recent studies have addressed the roles of specific immune cell subsets. Macrophages and interleukin (IL)-17-producing γδ T cells enhance bone healing, whereas CD8+ T cells impair bone repair. Additionally, IL-10-producing B cells may contribute to bone healing by suppressing excessive and/or prolonged inflammation. Although the involvement of other cells and molecules has been suggested, the precise underlying mechanisms remain elusive. Accumulating evidence has begun to reveal the deeper picture of bone fracture healing. Further studies are required for the development of novel therapeutic strategies for bone fracture.
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Affiliation(s)
- Takehito Ono
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan.
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17
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Kessel C, Lippitz K, Weinhage T, Hinze C, Wittkowski H, Holzinger D, Fall N, Grom AA, Gruen N, Foell D. Proinflammatory Cytokine Environments Can Drive Interleukin-17 Overexpression by γ/δ T Cells in Systemic Juvenile Idiopathic Arthritis. Arthritis Rheumatol 2017; 69:1480-1494. [PMID: 28296284 DOI: 10.1002/art.40099] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 03/09/2017] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Systemic-onset juvenile idiopathic arthritis (JIA) is speculated to follow a biphasic course, with an initial systemic disease phase driven by innate immune mechanisms and interleukin-1β (IL-1β) as a key cytokine and a second chronic arthritic phase that may be dominated by adaptive immunity and cytokines such as IL-17A. Although a recent mouse model points to a critical role of IL-17-expressing γ/δ T cells in disease pathology, in humans, both the prevalence of IL-17 and the role of IL-17-producing cells are still unclear. METHODS Serum samples from systemic JIA patients and healthy pediatric controls were analyzed for the levels of IL-17A and related cytokines. Whole blood samples were studied for cellular expression of IL-17 and interferon-γ (IFNγ). CD4+ and γ/δ T cells isolated from the patients and controls were assayed for cytokine secretion in different culture systems. RESULTS IL-17A was prevalent in sera from patients with active systemic JIA, while both ex vivo and in vitro experiments revealed that γ/δ T cells overexpressed this cytokine. This was not seen with CD4+ T cells, which expressed strikingly low levels of IFNγ. Therapeutic IL-1 blockade was associated with partial normalization of both cytokine expression phenotypes. Furthermore, culturing healthy donor γ/δ T cells in serum from systemic JIA patients or in medium spiked with IL-1β, IL-18, and S100A12 induced IL-17 overexpression at levels similar to those observed in the patients' cells. CONCLUSION A systemic JIA cytokine environment may prime γ/δ T cells in particular for IL-17A overexpression. Thus, our observations in systemic JIA patients strongly support a pathophysiologic role of these cells, as proposed by the recent murine model.
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Affiliation(s)
| | | | | | - Claas Hinze
- University Children's Hospital, Münster, Germany
| | | | | | - Ndate Fall
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Alexei A Grom
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Niklas Gruen
- University Children's Hospital, Münster, Germany
| | - Dirk Foell
- University Children's Hospital, Münster, Germany
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18
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Beyond TNF: TNF superfamily cytokines as targets for the treatment of rheumatic diseases. Nat Rev Rheumatol 2017; 13:217-233. [PMID: 28275260 DOI: 10.1038/nrrheum.2017.22] [Citation(s) in RCA: 203] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
TNF blockers are highly efficacious at dampening inflammation and reducing symptoms in rheumatic diseases such as rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis, and also in nonrheumatic syndromes such as inflammatory bowel disease. As TNF belongs to a superfamily of 19 structurally related proteins that have both proinflammatory and anti-inflammatory activity, reagents that disrupt the interaction between proinflammatory TNF family cytokines and their receptors, or agonize the anti-inflammatory receptors, are being considered for the treatment of rheumatic diseases. Biologic agents that block B cell activating factor (BAFF) and receptor activator of nuclear factor-κB ligand (RANKL) have been approved for the treatment of systemic lupus erythematosus and osteoporosis, respectively. In this Review, we focus on additional members of the TNF superfamily that could be relevant for the pathogenesis of rheumatic disease, including those that can strongly promote activity of immune cells or increase activity of tissue cells, as well as those that promote death pathways and might limit inflammation. We examine preclinical mouse and human data linking these molecules to the control of damage in the joints, muscle, bone or other tissues, and discuss their potential as targets for future therapy of rheumatic diseases.
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19
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Park HL, Lee SM, Min JK, Moon SJ, Kim I, Kang KW, Park S, Choi S, Jung HN, Lee DH, Nam JH. IK acts as an immunoregulator of inflammatory arthritis by suppressing T H17 cell differentiation and macrophage activation. Sci Rep 2017; 7:40280. [PMID: 28071693 PMCID: PMC5223115 DOI: 10.1038/srep40280] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 12/02/2016] [Indexed: 12/15/2022] Open
Abstract
Pathogenic T helper cells (TH) and macrophages have been implicated in the development of rheumatoid arthritis (RA), which can lead to severe synovial inflammation and bone destruction. A range of therapies have been widely used for RA, including specific monoclonal antibodies and chemical inhibitors against inflammatory cytokines produced by these cells. However, these have not been sufficient to meet the medical need. Here, we show that in transgenic mice expressing truncated IK (tIK) cytokine, inflammatory arthritis symptoms were ameliorated as the result of suppression of the differentiation of TH1 and TH17 cells and of macrophage activation. During inflammatory responses, tIK cytokine systemically regulated macrophage functions and TH17 cell differentiation through inactivation of the MAPK and NF-κB pathways. Interestingly, the level of tIK cytokine was higher in synovial fluid of RA patients compared with that in osteoarthritis (OA) patients. Our observations suggest that tIK cytokine can counterbalance the induction of inflammatory cells related to RA and thus could be a new therapeutic agent for the treatment of RA.
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Affiliation(s)
- Hye-Lim Park
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 420-743, Korea
| | - Sang-Myeong Lee
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 570-752, Korea
| | - Jun-Ki Min
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul,137-040, Korea
| | - Su-Jin Moon
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul,137-040, Korea
| | - Inki Kim
- Department of Medicine, College of Medicine, University of Ulsan, Seoul 138-736, Korea
| | - Kyung-Won Kang
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 570-752, Korea
| | - Sooho Park
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 420-743, Korea
| | - SeulGi Choi
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 420-743, Korea
| | - Ha-Na Jung
- Biomaterials Research Center, Cellinbio, Suwon, 443-734, Korea
| | - Dong-Hee Lee
- Biomaterials Research Center, Cellinbio, Suwon, 443-734, Korea
| | - Jae-Hwan Nam
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 420-743, Korea
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20
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Overexpression of soluble RAGE in mesenchymal stem cells enhances their immunoregulatory potential for cellular therapy in autoimmune arthritis. Sci Rep 2016; 6:35933. [PMID: 27804999 PMCID: PMC5090969 DOI: 10.1038/srep35933] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 10/06/2016] [Indexed: 12/18/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are attractive agents for cellular therapy in rheumatoid arthritis (RA). The receptor for advanced glycation end products (RAGE) serves as a pattern recognition receptor for endogenous inflammatory ligands. Soluble RAGE (sRAGE) is a truncated form of RAGE that functions as a decoy and acts as an anti-inflammatory molecule. The aim of this study was to determine whether sRAGE has therapeutic effects and the mechanisms active in sRAGE-overexpressing MSCs (sRAGE-MSCs) in an experimental model of RA. sRAGE-MSCs were generated by DNA transfection of human adipose tissue-derived MSCs (Ad-hMSCs). MSCs showed increased expression of VEGF, IL-1β, IL-6, and HMGB-1 under inflammatory conditions. However, sRAGE-MSCs showed significantly lower production of these proinflammatory molecules. Expression of immunomodulatory molecules such as IL-10, TGF-β, and indoleamine 2, 3-dioxygenase was higher in sRAGE-MSCs than in mock-MSCs. sRAGE-MSCs showed enhanced migration potential. Transplantation of sRAGE-MSCs into arthritic IL-1Ra-knockout mice markedly suppressed inflammatory arthritis, decreased Th17 cells, and reciprocally increased regulatory T cells. The differentiation of IFN-γ+CD4+ and IL-17+CD4+ cells was inhibited by incubation with sRAGE-MSCs compared with mock-MSCs. These findings suggest that sRAGE overexpression in Ad-hMSCs optimizes their immunoregulatory properties, which may be useful as a novel cellular therapy for RA.
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21
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Toll-like receptors and chronic inflammation in rheumatic diseases: new developments. Nat Rev Rheumatol 2016; 12:344-57. [PMID: 27170508 DOI: 10.1038/nrrheum.2016.61] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In the past few years, new developments have been reported on the role of Toll-like receptors (TLRs) in chronic inflammation in rheumatic diseases. The inhibitory function of TLR10 has been demonstrated. Receptors that enhance the function of TLRs, and several TLR inhibitors, have been identified. In addition, the role of the microbiome and TLRs in the onset of rheumatic diseases has been reported. We review novel insights on the role of TLRs in several inflammatory joint diseases, including rheumatoid arthritis, systemic lupus erythematosus, gout and Lyme arthritis, with a focus on the signalling mechanisms mediated by the Toll-IL-1 receptor (TIR) domain, the exogenous and endogenous ligands of TLRs, and the current and future therapeutic strategies to target TLR signalling in rheumatic diseases.
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22
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Nigrovic PA. Autoinflammation and autoimmunity in systemic juvenile idiopathic arthritis. Proc Natl Acad Sci U S A 2015; 112:15785-6. [PMID: 26677874 PMCID: PMC4703029 DOI: 10.1073/pnas.1521837113] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Peter A Nigrovic
- Division of Rheumatology, Immunology, and Allergy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115; Division of Immunology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115
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23
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Kandel-Kfir M, Almog T, Shaish A, Shlomai G, Anafi L, Avivi C, Barshack I, Grosskopf I, Harats D, Kamari Y. Interleukin-1α deficiency attenuates endoplasmic reticulum stress-induced liver damage and CHOP expression in mice. J Hepatol 2015; 63:926-33. [PMID: 26022690 DOI: 10.1016/j.jhep.2015.05.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/01/2015] [Accepted: 05/11/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS ER stress promotes liver fat accumulation and induction of inflammatory cytokines, which contribute to the development of steatohepatitis. Unresolved ER stress upregulates the pro-apoptotic CHOP. IL-1α is localized to the nucleus in apoptotic cells, but is released when these cells become necrotic and induce sterile inflammation. We investigated whether IL-1α is involved in ER stress-induced apoptosis and steatohepatitis. METHODS We employed WT and IL-1α-deficient mice to study the role of IL-1α in ER stress-induced steatohepatitis. RESULTS Liver CHOP mRNA was induced in a time dependent fashion in the atherogenic diet-induced steatohepatitis model, and was twofold lower in IL-1α deficient compared to WT mice. In the ER stress-driven steatohepatitis model, IL-1α deficiency decreased the elevation in serum ALT levels, the number of apoptotic cells (measured as caspase-3-positive hepatocytes), and the expression of IL-1β, IL-6, TNFα, and CHOP, with no effect on the degree of fatty liver formation. IL-1α was upregulated in ER-stressed-macrophages and the protein was localized to the nucleus. IL-1β mRNA and CHOP mRNA and protein levels were lower in ER-stressed-macrophages from IL-1α deficient compared to WT mice. ER stress induced the expression of IL-1α and IL-1β also in mouse primary hepatocytes. Recombinant IL-1α treatment in hepatocytes did not affect CHOP expression but upregulated both IL-1α and IL-1β mRNA levels. CONCLUSION We show that IL-1α is upregulated in response to ER stress and IL-1α deficiency reduces ER stress-induced CHOP expression, apoptosis and steatohepatitis. As a dual function cytokine, IL-1α may contribute to the induction of CHOP intracellularly, while IL-1α released from necrotic cells accelerates steatohepatitis via induction of inflammatory cytokines by neighboring cells.
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Affiliation(s)
- Michal Kandel-Kfir
- The Bert W. Strassburger Lipid Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Tal Almog
- The Bert W. Strassburger Lipid Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Aviv Shaish
- The Bert W. Strassburger Lipid Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Gadi Shlomai
- The Bert W. Strassburger Lipid Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Liat Anafi
- The Pathology Department, Sheba Medical Center, Tel Hashomer, Israel
| | - Camila Avivi
- The Pathology Department, Sheba Medical Center, Tel Hashomer, Israel
| | - Iris Barshack
- The Pathology Department, Sheba Medical Center, Tel Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel
| | - Itamar Grosskopf
- The Bert W. Strassburger Lipid Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Dror Harats
- The Bert W. Strassburger Lipid Center, Sheba Medical Center, Tel Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel
| | - Yehuda Kamari
- The Bert W. Strassburger Lipid Center, Sheba Medical Center, Tel Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel.
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24
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Akitsu A, Ishigame H, Kakuta S, Chung SH, Ikeda S, Shimizu K, Kubo S, Liu Y, Umemura M, Matsuzaki G, Yoshikai Y, Saijo S, Iwakura Y. IL-1 receptor antagonist-deficient mice develop autoimmune arthritis due to intrinsic activation of IL-17-producing CCR2(+)Vγ6(+)γδ T cells. Nat Commun 2015; 6:7464. [PMID: 26108163 PMCID: PMC4521288 DOI: 10.1038/ncomms8464] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 05/13/2015] [Indexed: 02/07/2023] Open
Abstract
Interleukin-17 (IL-17)-producing γδ T (γδ17) cells have been implicated in inflammatory diseases, but the underlying pathogenic mechanisms remain unclear. Here, we show that both CD4+ and γδ17 cells are required for the development of autoimmune arthritis in IL-1 receptor antagonist (IL-1Ra)-deficient mice. Specifically, activated CD4+ T cells direct γδ T-cell infiltration by inducing CCL2 expression in joints. Furthermore, IL-17 reporter mice reveal that the Vγ6+ subset of CCR2+ γδ T cells preferentially produces IL-17 in inflamed joints. Importantly, because IL-1Ra normally suppresses IL-1R expression on γδ T cells, IL-1Ra-deficient mice exhibit elevated IL-1R expression on Vγ6+ cells, which play a critical role in inducing them to produce IL-17. Our findings demonstrate a pathogenic mechanism in which adaptive and innate immunity induce an autoimmune disease in a coordinated manner. Control of γδ T-cell activation remains incompletely understood. Here the authors show that during autoimmune arthritis development αβ CD4+ T cells recruit a subset of IL-17-producing γδ T cells to the joints, and that both components are essential to cause pathology in a mouse model of the disease.
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Affiliation(s)
- Aoi Akitsu
- 1] Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan [2] Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0032, Japan [3] Research Fellow of the Japan Society for the Promotion of Science (JSPS), Tokyo 102-0083, Japan [4] Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Saitama 332-0012, Japan [5] Division of Experimental Animal Immunology, Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba 278-0022, Japan
| | - Harumichi Ishigame
- Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Shigeru Kakuta
- Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Soo-Hyun Chung
- 1] Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan [2] Division of Experimental Animal Immunology, Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba 278-0022, Japan
| | - Satoshi Ikeda
- Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Kenji Shimizu
- 1] Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan [2] Division of Experimental Animal Immunology, Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba 278-0022, Japan
| | - Sachiko Kubo
- 1] Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan [2] Division of Experimental Animal Immunology, Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba 278-0022, Japan
| | - Yang Liu
- Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Masayuki Umemura
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Goro Matsuzaki
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Yasunobu Yoshikai
- Research Center for Prevention of Infectious Diseases, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Shinobu Saijo
- Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Yoichiro Iwakura
- 1] Laboratory of Molecular Pathogenesis, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan [2] Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0032, Japan [3] Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Saitama 332-0012, Japan [4] Division of Experimental Animal Immunology, Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba 278-0022, Japan
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25
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Caplazi P, Baca M, Barck K, Carano RAD, DeVoss J, Lee WP, Bolon B, Diehl L. Mouse Models of Rheumatoid Arthritis. Vet Pathol 2015; 52:819-26. [DOI: 10.1177/0300985815588612] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic debilitating autoimmune disorder characterized by synovitis that leads to cartilage and bone erosion by invading fibrovascular tissue. Mouse models of RA recapitulate many features of the human disease. Despite the availability of medicines that are highly effective in many patient populations, autoimmune diseases (including RA) remain an area of active biomedical research, and consequently mouse models of RA are still extensively used for mechanistic studies and validation of therapeutic targets. This review aims to integrate morphologic features with model biology and cover the key characteristics of the most commonly used induced and spontaneous mouse models of RA. Induced models emphasized in this review include collagen-induced arthritis and antibody-induced arthritis. Collagen-induced arthritis is an example of an active immunization strategy, whereas antibody- induced arthritis models, such as collagen antibody–induced arthritis and K/BxN antibody transfer arthritis, represent examples of passive immunization strategies. The coverage of spontaneous models in this review is focused on the TNFΔ ARE mouse, in which arthritis results from overexpression of TNF-α, a master proinflammatory cytokine that drives disease in many patients.
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Affiliation(s)
- P. Caplazi
- Departments of Research Pathology, Genentech Inc, South San Francisco, CA, USA
| | - M. Baca
- Departments of Research Pathology, Genentech Inc, South San Francisco, CA, USA
| | - K. Barck
- Biomedical Imaging, Genentech Inc, South San Francisco, CA, USA
| | - R. A. D. Carano
- Biomedical Imaging, Genentech Inc, South San Francisco, CA, USA
| | - J. DeVoss
- Translational Immunology, Genentech Inc, South San Francisco, CA, USA
| | - W. P. Lee
- Translational Immunology, Genentech Inc, South San Francisco, CA, USA
| | - B. Bolon
- Department of Veterinary Biosciences and the Comparative Pathology and Mouse Phenotyping Shared Resource, The Ohio State University, Columbus, OH, USA
| | - L. Diehl
- Departments of Research Pathology, Genentech Inc, South San Francisco, CA, USA
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26
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Deng N, Jiao Y, Cao Y, Liu X, Ma Y, Hasty KA, Brand DD, Stuart JM, Gu W. Genomic locus on chromosome 1 regulates susceptibility to spontaneous arthritis in mice deficiency of IL-1RA. BMC Immunol 2014; 15:57. [PMID: 25488730 PMCID: PMC4272550 DOI: 10.1186/s12865-014-0057-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 07/27/2014] [Accepted: 11/20/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To understand the role of genetic factors on chromosome 1 in the regulation of spontaneous arthritis in mice deficient in IL-1 receptor antagonist protein (IL_1RA), we previously used speed congenic breeding to transfer the QTL region from DBA/1(-/-) mice that are resistant to spontaneous arthritis into BALB/c(-/-) mice which are susceptible. We were able to establish two congenic strains which exhibited a delayed onset and reduced severity of disease. In this study, we asked a different set of questions. How will the QTL region from BALB/c(-/-) interact with the rest of the genome in the DBA/1(-/-) background? Will the DBA/1(-/-) mice become susceptible to spontaneous arthritis if the QTL genomic region on chromosome 1 was replaced with the genomic fragment of the same region from BALB/c(-/-)? We conducted the congenic breeding with the similar procedure as that of congenic strains with BALB/c(-/-) background. RESULT Instead of BALB/c(-/-), DBA/1(-/-) was used as the recurrent parent while BALB/c(-/-) was used as the donor parent. By the 6(th) generation we determined that all of the chromosomes in the progeny were of DBA/1(-/-) origin with the exception of the QTL portion of chromosome 1 which is heterozygous of BALB/c(-/-) and DBA/1(-/-) origin. We then intercrossed selected mice to produce homozygous strains containing the homozygous genomic region of BALB/c(-/-) on chromosome 1, while the rest of genome are homozygous DBA/1(-/-). This strain was observed for the development of spontaneous arthritis. Up to 9 weeks of age, both congenic strain and DBA/1(-/-) did not develop arthritis. However, after 9 weeks, the congenic strain started to exhibit signs of arthritis, while the DBA/1(-/-) remained free from disease. CONCLUSION The result indicates a strong influence of genetic factor(s) on the QTL of chromosome 1 on the susceptibility to spontaneous arthritis. Identification of genetic factors within this QTL region in the future will significantly enhance our understanding of molecular mechanism of spontaneous arthritis.
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Affiliation(s)
- Nan Deng
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Yan Jiao
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Mudanjiang Medical College, Mudanjiang, Heilongjiang, 157001, PR China.
| | - Yanhong Cao
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Institute of Kaschin-Beck Disease, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Key Laboratory of Etiologic Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618104), Harbin Medical University, Harbin, 150081, China.
| | - Xiaoyun Liu
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Yonghui Ma
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Karen A Hasty
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA.
| | - David D Brand
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA. .,Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - John M Stuart
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA.
| | - Weikuan Gu
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA.
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Akitsu A, Kakuta S, Saijo S, Iwakura Y. Rag2-deficient IL-1 Receptor Antagonist-deficient Mice Are a Novel Colitis Model in Which Innate Lymphoid Cell-derived IL-17 Is Involved in the Pathogenesis. Exp Anim 2014; 63:235-46. [PMID: 24770649 PMCID: PMC4160983 DOI: 10.1538/expanim.63.235] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Il1rn−/− mice spontaneously develop arthritis and aortitis by
an autoimmune mechanism and also develop dermatitis by an autoinflammatory mechanism.
Here, we show that Rag2−/−Il1rn−/−
mice develop spontaneous colitis with high mortality, making a contrast to the suppression
of arthritis in these mice. Enhanced IL-17A expression in group 3 innate lymphoid cells
(ILC3s) was observed in the colon of
Rag2−/−Il1rn−/− mice.
IL-17A-deficiency prolonged the survival of
Rag2−/−Il1rn−/− mice, suggesting
a pathogenic role of this cytokine in the development of intestinal inflammation. Although
IL-17A-producing T cells were increased in Il1rn−/− mice,
these mice did not develop colitis, because CD4+Foxp3+ regulatory T
cell population was also expanded. Thus, excess IL-1 signaling and IL-1-induced IL-17A
from ILC3s cause colitis in Rag2−/−Il1rn−/− mice in
which Treg cells are absent. These observations suggest that the balance between
IL-17A-producing cells and Treg cells is important to keep the immune homeostasis of the
colon.
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Affiliation(s)
- Aoi Akitsu
- Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
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28
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Osada Y, Yamada S, Nakae S, Sudo K, Kanazawa T. Reciprocal effects of Schistosoma mansoni infection on spontaneous autoimmune arthritis in IL-1 receptor antagonist-deficient mice. Parasitol Int 2014; 64:13-7. [PMID: 25220583 DOI: 10.1016/j.parint.2014.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 08/26/2014] [Accepted: 09/02/2014] [Indexed: 01/10/2023]
Abstract
Schistosome infections have been shown to prevent inflammation in induced-type arthritis models. However, its effects on spontaneous arthritis remain unknown. We here investigated the effects of Schistosoma mansoni (Sm) infection on spontaneous autoimmune arthritis in IL-1 receptor antagonist (IL-1Ra)-deficient mice. Sm infection partially reduced the severity of arthritis in male IL-1Ra-deficient mice. The splenic responses of IL-17 and TNF-α were reduced, while those of IL-4 and IL-10 were enhanced by the infection. However, Sm infection increased IgG rheumatoid factor and anti-dsDNA IgG serum levels. These results suggest that Sm infection has both ameliorating and exacerbating effects on autoimmunity in IL-1Ra-deficient mice.
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Affiliation(s)
- Yoshio Osada
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan.
| | - Sohsuke Yamada
- Department of 2nd Pathology and Cell Biology, University of Occupational and Environmental Health, 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Susumu Nakae
- Laboratory of Systems Biology, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Katsuko Sudo
- Animal Research Center, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo 160-0022, Japan
| | - Tamotsu Kanazawa
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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29
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Affiliation(s)
- Peter A. Nigrovic
- Boston Children's Hospital; Brigham and Women's Hospital and Harvard Medical School Boston MA
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30
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Nigrovic PA. Review: is there a window of opportunity for treatment of systemic juvenile idiopathic arthritis? Arthritis Rheumatol 2014; 66:1405-13. [PMID: 24623686 DOI: 10.1002/art.38615] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 02/27/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Peter A Nigrovic
- Boston Children's Hospital, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts
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31
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Oh K, Seo MW, Kim IG, Hwang YI, Lee HY, Lee DS. CP-690550 Treatment Ameliorates Established Disease and Provides Long-Term Therapeutic Effects in an SKG Arthritis Model. Immune Netw 2013; 13:257-63. [PMID: 24385944 PMCID: PMC3875784 DOI: 10.4110/in.2013.13.6.257] [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: 10/01/2013] [Revised: 10/24/2013] [Accepted: 10/24/2013] [Indexed: 01/15/2023] Open
Abstract
Although pathogenesis of human rheumatoid arthritis (RA) remains unclear, arthritogenic T cells and downstream signaling mediators have been shown to play critical roles. An increasing numbers of therapeutic options have been added for the effective control of RA. Nevertheless, there is still a category of patients that fails treatment and suffers from progressive disease. The recently developed immunosuppressant CP-690550, a small molecule JAK kinase inhibitor, has been implicated as an important candidate treatment modality for autoimmune arthritis. In this study, we evaluated the therapeutic effect of CP-690550 on established arthritis using an SKG arthritis model, a pathophysiologically relevant animal model for human RA. CP-690550 treatment revealed remarkable long-term suppressive effects on SKG arthritis when administered to the well-advanced disease (clinical score 3.5~4.0). The treatment effect lasted at least 3 more weeks after cessation of drug infusion, and suppression of disease was correlated with the reduced pro-inflammatory cytokines, including IL-17, IFN-γ, and IL-6 and increased level of immunoregulatory IL-10.
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Affiliation(s)
- Keunhee Oh
- Laboratory of Immunology, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Department of Anatomy, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Transplantation Research Institute, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Myung Won Seo
- Laboratory of Immunology, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Department of Anatomy, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - In Gyu Kim
- Laboratory of Immunology, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Young-Il Hwang
- Department of Anatomy, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Hee-Yoon Lee
- Department of Chemistry, KAIST, Daejeon 305-701, Korea
| | - Dong-Sup Lee
- Laboratory of Immunology, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Department of Anatomy, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Transplantation Research Institute, Seoul National University College of Medicine, Seoul 110-799, Korea
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32
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Matteini AM, Li J, Lange EM, Tanaka T, Lange LA, Tracy RP, Wang Y, Biggs ML, Arking DE, Fallin MD, Chakravarti A, Psaty BM, Bandinelli S, Ferrucci L, Reiner AP, Walston JD. Novel gene variants predict serum levels of the cytokines IL-18 and IL-1ra in older adults. Cytokine 2013; 65:10-6. [PMID: 24182552 DOI: 10.1016/j.cyto.2013.10.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 08/23/2013] [Accepted: 10/04/2013] [Indexed: 10/26/2022]
Abstract
Activation of inflammatory pathways measured by serum inflammatory markers such as interleukin-18 (IL-18) and interleukin-1 receptor antagonist (IL-1ra) is strongly associated with the progression of chronic disease states in older adults. Given that these serum cytokine levels are in part a heritable trait, genetic variation may predict increased serum levels. Using the Cardiovascular Health Study and InCHIANTI cohorts, a genome-wide association study was performed to identify genetic variants that influence IL-18 and IL-1ra serum levels among older adults. Multiple linear regression models characterized the association between each SNP and log-transformed cytokine values. Tests for multiple independent signals within statistically significant loci were performed using haplotype analysis and regression models conditional on lead SNP in each region. Multiple SNPs were associated with these cytokines with genome-wide significance, including SNPs in the IL-18-BCO gene region of chromosome 2 for IL-18 (top SNP rs2250417, P=1.9×10(-32)) and in the IL-1 gene family region of chromosome 2 for IL-1ra (rs6743376, P=2.3×10(-26)). Haplotype tests and conditional linear regression models showed evidence of multiple independent signals in these regions. Serum IL-18 levels were also associated with a region on chromosome 2 containing the NLRC4 gene (rs12989936, P=2.7×10(-19)). These data characterize multiple robust genetic signals that influence IL-18 and IL-1ra cytokine production. In particular, the signal for serum IL-18 located on chromosome two is novel and potentially important in inflammasome triggered chronic activation of inflammation in older adults. Replication in independent cohorts is an important next step, as well as molecular studies to better understand the role of NLRC4.
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Affiliation(s)
- A M Matteini
- Division of Geriatric Medicine, Johns Hopkins Medical Institution, Baltimore, MD, USA.
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IL-17 in the rheumatologist's line of sight. BIOMED RESEARCH INTERNATIONAL 2013; 2013:295132. [PMID: 23984335 PMCID: PMC3741932 DOI: 10.1155/2013/295132] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 06/27/2013] [Indexed: 12/18/2022]
Abstract
Over the past decades, the identification of several new cytokines, including interleukin (IL)-17 and IL-23, and of new T helper cell subsets, including Th17 cells, has changed the vision of immunological processes. The IL-17/Th17 pathway plays a critical role during the development of inflammation and autoimmunity, and targeting this pathway has become an attractive strategy for a number of diseases. This review aims to describe the effects of IL-17 in the joint and its roles in the development of autoimmune and inflammatory arthritis. Furthermore, biotherapies targeting directly or indirectly IL-17 in inflammatory rheumatisms will be developed.
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34
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Cao Y, Liu X, Deng N, Jiao Y, Ma Y, Hasty KA, Stuart JM, Gu W. Congenic mice provide evidence for a genetic locus that modulates spontaneous arthritis caused by deficiency of IL-1RA. PLoS One 2013; 8:e68158. [PMID: 23840826 PMCID: PMC3695999 DOI: 10.1371/journal.pone.0068158] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 05/30/2013] [Indexed: 12/21/2022] Open
Abstract
To understand the role of genetic factors involved in the development of spontaneous arthritis in mice deficient in IL-1 receptor antagonist protein (IL_1RA), we have identified a genomic region containing a major quantitative trait locus (QTL) for this disease. The QTL is on chromosome 1 and appears to be the strongest genetic region regulating arthritis. To confirm the importance of the QTL and to identify potential candidate genes within it, we conducted speed congenic breeding to transfer the QTL region from DBA/1 mice that are resistant to spontaneous arthritis into BALB/c−/− which are susceptible. Genetic markers along every chromosome were used to assist in the selection of progeny in each generation to backcross to BALB/c−/−. By the 6th generation we determined that all of the chromosomes in the progeny were of BALB/c origin with the exception of portions of chromosome 1. At this stage we intercrossed selected mice to produce homozygous strains containing the genomic background of BALB/c−/− except for the QTL region on chromosome 1, which was from DBA/1. We were able to establish two congenic strains with overlapping DBA/1 DNA segments. These strains were observed for the development of spontaneous arthritis. Both congenic strains were relatively resistant to spontaneous arthritis and had delayed onset and reduced severity of disease. The gene/s that regulates this major QTL would appear to be located in the region of the QTL that is shared by both strains. The common transferred region is between D1Mit110 and D1Mit209 on chromosome 1. We evaluated this region for candidate genes and have identified a limited number of candidates. Confirmation of the identity and precise role of the candidates will require additional study.
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Affiliation(s)
- Yanhong Cao
- Institute of Kaschin-beck Disease, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University; Key Laboratory of Etiologic Epidemiology, Education Bureau of Heilongjiang Province and Ministry of Health (23618104), Harbin, China
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Xiaoyun Liu
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Nan Deng
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Yan Jiao
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Yonghui Ma
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Karen A. Hasty
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - John M. Stuart
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis Tennessee, United States of America
- * E-mail: (JMS); (WG)
| | - Weikuan Gu
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- * E-mail: (JMS); (WG)
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35
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Yan J, Jiao Y, Chen H, Jiao F, Hasty KA, Stuart JM, Gu W. Dual effects of IL-1 overactivity on the immune system in a mouse model of arthritis due to deficiency of IL-1 receptor antagonist. J Genet Genomics 2013; 40:83-91. [PMID: 23439407 DOI: 10.1016/j.jgg.2013.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 09/05/2012] [Accepted: 01/10/2013] [Indexed: 11/16/2022]
Abstract
Previous studies have revealed the significance of cytokine interleukin 1 (IL-1) in the onset and progression of rheumatoid arthritis (RA). The precise molecular mechanisms related to IL-1 underlying RA is still elusive. We conducted a whole genome-wide transcriptomal comparison of wild-type (WT) and arthritis-prone IL-1 receptor antagonist (IL-1rn) deficient BALB/c mice to address this issue. To refine our search efforts, gene expression profiling was also performed on paired wild-type and arthritis-resistant IL-1rn deficient DBA/1 mice as internal controls when identifying causative arthritis candidate genes. Two hundred and fifteen transcripts were found to be dysregulated greater than or equal to 2-fold in the diseased mice. The altered transcriptome in BALB/c mice revealed increased myeloid cell activities and impaired lymphocyte functionality, suggesting dual regulatory effects of IL-1 hyperactivity on immunological changes associated with arthritis development. Phase-specific gene expression changes were identified, such as early increase and late decrease of heat shock protein coding genes. Moreover, common gene expression changes were also observed, especially the upregulation of paired Ig-like receptor A (Pira) in both early and late phases of arthritis. Real-time PCR was performed to validate the expression of Pira and an intervention experiment with a major histocompatibility complex (MHC) class I inhibitor (brefeldin A) was carried out to investigate the role of suppressing Pira activity. We conclude that global pattern changes of common and distinct gene expressions may represent novel opportunities for better control of RA through early diagnosis and development of alternative therapeutic strategies.
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Affiliation(s)
- Jian Yan
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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36
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van den Brand BT, Abdollahi-Roodsaz S, Bennink MB, Bussink J, Arntz OJ, van den Berg WB, van de Loo FAJ. Toll-like receptor 4 in bone marrow-derived cells as well as tissue-resident cells participate in aggravating autoimmune destructive arthritis. Ann Rheum Dis 2013; 72:1407-15. [PMID: 23291389 DOI: 10.1136/annrheumdis-2012-202467] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE A prominent role of Toll-like receptor 4 (TLR4) in arthritis is emerging. TLR4 is functional in immune cells and stromal cells. The aim was to investigate the involvement of TLR4 in bone marrow (BM)-derived and resident cells in arthritis. METHODS Reciprocal sex-mismatched BM transplantation was performed between IL-1Ra(-/-)TLR4(+/+) and IL-1Ra(-/-)TLR4(-/-) double knockout animals in Balb/c background. Arthritis was assessed macroscopically and by histopathology. Immunity was evaluated by splenic cytokine production and flow cytometry in draining lymph node (DLN) cells. RESULTS Arthritis progression was reduced to a similar extent in animals lacking TLR4 on BM-derived, resident cells or both. Histology revealed that joint inflammation was partially TLR4-dependent in either BM-derived or resident cells. TLR4 plays an additive role in BM-derived and resident cells in promoting cartilage erosion. By contrast, TLR4 was equally important in BM-derived and resident cells in mediating bone erosion. Systemically, TLR4 in both BM-derived and resident cells contributed to IL-17 production by splenic T-cells, whereas in the DLNs of arthritic joints this was not the case. Interestingly, in DLN, the dominant cells producing IL-17 were CD4 negative, and cell numbers were determined by TLR4 in the BM-derived cells. CONCLUSIONS TLR4 is necessary in both BM-derived and resident cells for full-blown joint swelling, inflammation and bone erosion. Furthermore, TLR4 on BM-derived and tissue-resident cells show an additive effect in cartilage destruction. Interestingly, TLR4 on BM-derived and tissue-resident cells are both required for IL-17 production in spleen, but only in BM-derived cells in DLN.
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Affiliation(s)
- Ben T van den Brand
- Rheumatology Research and Advanced Therapeutics, Department of Rheumatology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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37
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Dong W, Zhu P. Functional niche of inflamed synovium for Th17-cell expansion and activation in rheumatoid arthritis: Implication to clinical therapeutics. Autoimmun Rev 2012; 11:844-51. [DOI: 10.1016/j.autrev.2012.02.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 02/23/2012] [Indexed: 12/14/2022]
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38
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Charbonneau B, Maurer MJ, Ansell SM, Slager SL, Fredericksen ZS, Ziesmer SC, Macon WR, Habermann TM, Witzig TE, Link BK, Cerhan JR, Novak AJ. Pretreatment circulating serum cytokines associated with follicular and diffuse large B-cell lymphoma: a clinic-based case-control study. Cytokine 2012; 60:882-9. [PMID: 23010502 DOI: 10.1016/j.cyto.2012.08.028] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Accepted: 08/27/2012] [Indexed: 12/27/2022]
Abstract
BACKGROUND Abnormal immune function is a key factor in predisposition to non-Hodgkin lymphoma (NHL). We evaluated the association of 30 cytokines individually and as a profile with diffuse large B-cell (DLBCL) and follicular (FL) lymphomas. METHODS We used a multiplexed assay to measure 30 cytokine concentrations in pre-treatment serum in a case-control study of 234 FL, 188 DLBCL, and 400 control participants. Unconditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) adjusted for age and sex, and polytomous regression was used to evaluate heterogeneity between FL and DLBCL. Principal components analysis (PCA) was used to assess cytokine profiles associated with FL and DLBCL. RESULTS In single cytokine modeling, we found that 12 of the 30 circulating serum cytokines were significantly (P<0.05) associated with FL and/or DLBCL after accounting for multiple testing (q<0.05). Soluble IL-2R (sIL-2R) had the strongest association with both FL (OR=6.0 for highest versus lowest tertile, 95% CI 3.8-9.5; p-trend=1.8 × 10(-21)) and DLBCL (OR=7.6, 95% CI 4.5-13.1; p-trend=7.2 × 10(-20)). IL1RA and IL-12p40 also showed similar associations for DLBCL and FL. In contrast, HGF, MIG, and MIP-1α had a stronger association with DLBCL compared to FL, and IL-6, IL-8, IL-10, IFN-γ, IP-10, and VEGF were only statistically significantly associated with DLBCL after accounting for multiple testing. However, in PCA modeling, a cytokine profile based on sIL-2R, IL-1RA, MIG, IP-10, IL-8, and IL-12p40 explained most of the variability between controls and both FL and DLBCL. CONCLUSIONS We identified some cytokines unique to DLBCL, but overall cytokine associations were more similar than distinct for DLBCL and FL. While these data are limited by concerns of reverse causality, they do suggest cytokines and cytokine profiles that can be prioritized in future studies.
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Affiliation(s)
- Bridget Charbonneau
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
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39
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Minkis K, Aksentijevich I, Goldbach-Mansky R, Magro C, Scott R, Davis JG, Sardana N, Herzog R. Interleukin 1 receptor antagonist deficiency presenting as infantile pustulosis mimicking infantile pustular psoriasis. ACTA ACUST UNITED AC 2012; 148:747-52. [PMID: 22431714 DOI: 10.1001/archdermatol.2011.3208] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Deficiency of interleukin 1 receptor antagonist (DIRA) is a recently described autoinflammatory syndrome of skin and bone caused by recessive mutations in the gene encoding the interleukin 1 receptor antagonist. Few studies have been published about this debilitating condition. Early identification is critical for targeted lifesaving intervention. OBSERVATIONS A male infant, born to nonconsanguineous Puerto Rican parents, was referred for management of a pustular eruption diagnosed as pustular psoriasis. At 2 months of age, the infant developed a pustular eruption. After extensive evaluation, he was confirmed to be homozygous for a 175-kb genomic deletion on chromosome 2 that includes the IL1RN gene, commonly found in Puerto Ricans. Therapy with anakinra was initiated, with rapid clearance of skin lesions and resolution of systemic inflammation. CONCLUSIONS Recent identification of DIRA as a disease entity, compounded by the limited number of reported cases, makes early identification difficult. It is critical to consider this entity in the differential diagnosis of infantile pustulosis. Targeted therapy with the recombinant human interleukin 1 receptor antagonist anakinra can be lifesaving if initiated early. A high carrier frequency of the 175-kb DIRA-associated genomic deletion in the Puerto Rican population strongly supports testing infants presenting with unexplained pustulosis in patients from this geographic region.
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Affiliation(s)
- Kira Minkis
- Department of Dermatology, Weill Medical College of Cornell University, 505 E 70th St, New York, NY 10065, USA
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40
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Cao Y, Li C, Yan J, Jiao F, Liu X, Hasty KA, Stuart JM, Gu W, Jiao Y. Analysis of candidate genes of spontaneous arthritis in mice deficient for interleukin-1 receptor antagonist. Genes Genet Syst 2012; 87:107-13. [PMID: 22820384 DOI: 10.1266/ggs.87.107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Previously, we identified a major quantitative trait locus (QTL) on mouse chromosome 1 that regulates the susceptibility to arthritis in an F2 population generated from arthritis-prone BALB/c and arthritis-resistant DBA/1 mice deficient for interleukin-1 receptor antagonist. To further select candidate genes for the QTL, we analyzed the expression patterns of arthritis in 38 F2 individuals and compared the expression levels of key candidate genes to the parental strains. Two distinct subpopulations of arthritic mice were identified in the 38 F2 mice. One subgroup of diseased mice was characterized by myeloid cell dominant inflammation, whereas the other was mainly associated with increased anti-apoptotic activities of inflammatory cells. Several differentially expressed important candidate genes in parental strains in the QTL region are relevant to myeloid cell, apoptotic activities, or to both. About one-quarter of those genes have been previously linked to arthritis in literature. The present study reveals two distinct subpopulations of arthritic mice with spontaneous arthritis due to deficiency for interleukin-1 receptor antagonist, suggesting that genes with function relevant to myeloid cell and/or apoptotic activities are most likely the key candidate genes for the QTL.
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Affiliation(s)
- Yanhong Cao
- Institute of Kaschin-Beck Disease, Center for Endemic Disease Control, Harbin Medical University, PR China
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41
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Komatsu N, Takayanagi H. Inflammation and bone destruction in arthritis: synergistic activity of immune and mesenchymal cells in joints. Front Immunol 2012; 3:77. [PMID: 22566958 PMCID: PMC3342288 DOI: 10.3389/fimmu.2012.00077] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 03/27/2012] [Indexed: 12/14/2022] Open
Abstract
Rheumatoid arthritis (RA) is an immune-mediated disease of the joints that is characterized by chronic inflammation and synovial hyperplasia that eventually lead to cartilage and bone destruction. Synovial fibroblasts are mesenchymal cells recognized as a key cell population in RA due to their hyperproliferative and hypersensitive properties in the inflammatory milieu and hyperproduction of both inflammatory cytokines and matrix-degrading enzymes. On the immune cell side, a wealth of evidence has shown that CD4+T-cells, especially IL-17 producing helper T (Th17) cells, play a prominent role, particularly in the initiation of systemic immune response in RA. However, it is still unclear how the local chronic inflammation in the joint is elicited by a systemic immune response. Recent studies have shed light on the importance of the interaction between immune and mesenchymal cells in joints including synovial fibroblasts. In particular, mesenchymal cells contribute to the Th17-mediated chronic inflammation in RA by promoting the migration of Th17 cells to the inflamed site and then the homeostatic proliferation and concomitant increase in IL-17 production. In addition, recent progress in osteoimmunology has provided new insight into the pathogenesis of the bone destruction which takes place in RA. Th17-related cytokines have been shown to enhance osteoclastogenesis, mainly via synovial fibroblasts. Thus, mesenchymal cells are a determinant of the development of RA that links the systemic immune response and the local disorder in the joints. In addition, the interaction of immune and mesenchymal cells plays a key role in both the chronic inflammation and bone destruction seen in RA. Elucidation of the precise events involved in this interaction will lead to a better understanding of the mechanisms by which chronic inflammation and bone destruction in joint results from a systemic immune response, and also will help provide a molecular basis for novel therapeutic strategies to treat RA.
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Affiliation(s)
- Noriko Komatsu
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Tokyo, Japan
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Toxoplasma gondii infection inhibits Th17-mediated spontaneous development of arthritis in interleukin-1 receptor antagonist-deficient mice. Infect Immun 2012; 80:1437-44. [PMID: 22290145 DOI: 10.1128/iai.05680-11] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Interleukin 1 receptor antagonist (IL-1Ra)-deficient BALB/c mice develop spontaneous arthritis resembling human rheumatoid arthritis. We herein report that infection with Toxoplasma gondii, an intracellular protozoan, is capable of ameliorating the spontaneous development of arthritis in IL-1Ra-deficient mice. The onset of arthritis development was delayed and the severity score of arthritis was significantly suppressed in T. gondii-infected mice. Expression of IL-12p40 mRNA from CD11c(+) cells of mesenteric lymph nodes (mLN) and spleen markedly increased at 1 week after peroral infection. While CD11c(+) cells also produced IL-10, IL-1β, and IL-6, CD4(+) T cells from T. gondii-infected mice expressed significantly high levels of T-bet and gamma interferon (IFN-γ) mRNA in both mLN and spleen. Levels of GATA-3/IL-4 mRNA or RORγt/IL-17 mRNA decreased in the infected mice, indicating Th1 cell polarization and the reduction of Th2 and Th17 cell polarization. The severity of arthritis was related to Th1 cell polarization accompanied by Th17 cell reduction, demonstrating the protective role of the T. gondii-derived Th1 response against Th17 cell-mediated arthritis in IL-1Ra-deficient mice.
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Fujii H, Baba T, Yamagishi M, Kawano M, Mukaida N. The role of a chemokine receptor, CCR2, in suppressing the development of arthritis in IL-1 receptor antagonist-deficient mice. Inflamm Regen 2012. [DOI: 10.2492/inflammregen.32.124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Komatsu N, Takayanagi H. Autoimmune arthritis: the interface between the immune system and joints. Adv Immunol 2012; 115:45-71. [PMID: 22608255 DOI: 10.1016/b978-0-12-394299-9.00002-3] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease, characterized by chronic inflammation and synovial hyperplasia in the joints that ultimately lead to cartilage and bone destruction. A wealth of research has shown that CD4(+) T cells, especially IL-17 producing helper T (Th17) cells, play an important role in RA development. However, it still remains to be clarified how the systemic immune response results in the local joint disorders. Studies on animal models of RA have shed light on the importance of the interaction between immune cells and joint-specific mesenchymal cells. In particular, joint-specific mesenchymal cells contribute to the Th17-mediated augmentation of the inflammatory phase in RA by promoting the migration of Th17 cells to the inflammatory joint and then homeostatic proliferation with increase in IL-17 production. In addition, recent progress in osteoimmunology has provided new insights into the pathogenesis of the bone destruction phase in RA. Of note, Th17 cells have been shown to enhance the differentiation of osteoclasts via joint-specific mesenchymal cells. Thus, the interaction of CD4(+) T cells and nonhematopoietic mesenchymal cells in joints plays a key role in RA pathogenesis during both the inflammatory and bone destruction phases. Focusing on this interaction will lead to a better understanding of the mechanism by which the systemic immune response results in local joint disorders and also helps provide a molecular basis for novel therapeutic strategies.
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Affiliation(s)
- Noriko Komatsu
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
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Roles of interleukin-17 in an experimental Legionella pneumophila pneumonia model. Infect Immun 2011; 80:1121-7. [PMID: 22144493 DOI: 10.1128/iai.05544-11] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Interleukin-17 (IL-17) is a key factor in T helper type 17 (Th17) lineage host responses and plays critical roles in immunological control of a variety of infectious diseases. Although Legionella pneumophila, an intracellular bacterium found widely in the environment, often causes a serious and life-threatening pneumonia in humans, the contribution of IL-17 to immune function during Legionella pneumonia is unknown. In the present study, we used an experimental Legionella pneumonia infection to clarify the role of IL-17 in the resulting immune response. We observed robust production of pulmonary IL-17A and IL-17F (IL-17A/F), peaking on day 1 and declining thereafter. Upregulated production of tumor necrosis factor alpha (TNF-α), IL-6, and IL-1β, but not monocyte chemotactic protein 1 (MCP-1), was observed in Legionella-infected bone marrow-derived macrophages from BALB/c mice that had been stimulated with IL-17A or IL-17F. A significant decrease in the production of proinflammatory cytokines IL-6 and TNF-α was observed in IL-17A/F-deficient mice (BALB/c background) infected with L. pneumophila. Moreover, we found impaired neutrophil migration and lower numbers of chemokines (KC, LIX, and MIP-2) in IL-17A/F-deficient mice. IL-17A/F-deficient mice also eliminated L. pneumophila more slowly and were less likely to survive a lethal challenge. These results demonstrate that IL-17A/F plays a critical role in L. pneumophila pneumonia, probably through induction of proinflammatory cytokines and accumulation of neutrophils at the infection site.
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Taniya T, Tanaka S, Yamaguchi-Kabata Y, Hanaoka H, Yamasaki C, Maekawa H, Barrero RA, Lenhard B, Datta MW, Shimoyama M, Bumgarner R, Chakraborty R, Hopkinson I, Jia L, Hide W, Auffray C, Minoshima S, Imanishi T, Gojobori T. A prioritization analysis of disease association by data-mining of functional annotation of human genes. Genomics 2011; 99:1-9. [PMID: 22019378 DOI: 10.1016/j.ygeno.2011.10.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 09/16/2011] [Accepted: 10/06/2011] [Indexed: 11/15/2022]
Abstract
Complex diseases result from contributions of multiple genes that act in concert through pathways. Here we present a method to prioritize novel candidates of disease-susceptibility genes depending on the biological similarities to the known disease-related genes. The extent of disease-susceptibility of a gene is prioritized by analyzing seven features of human genes captured in H-InvDB. Taking rheumatoid arthritis (RA) and prostate cancer (PC) as two examples, we evaluated the efficiency of our method. Highly scored genes obtained included TNFSF12 and OSM as candidate disease genes for RA and PC, respectively. Subsequent characterization of these genes based upon an extensive literature survey reinforced the validity of these highly scored genes as possible disease-susceptibility genes. Our approach, Prioritization ANalysis of Disease Association (PANDA), is an efficient and cost-effective method to narrow down a large set of genes into smaller subsets that are most likely to be involved in the disease pathogenesis.
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Affiliation(s)
- Takayuki Taniya
- Japan Biological Information Research Center, Japan Biological Informatics Consortium, AIST Bio-IT Research Building 7F, 2-4-7 Aomi, Tokyo 135-0064, Japan
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Niu X, He D, Deng S, Li W, Xi Y, Xie C, Jiang T, Zhang JZ, Dong C, Chen G. Regulatory immune responses induced by IL-1 receptor antagonist in rheumatoid arthritis. Mol Immunol 2011; 49:290-6. [DOI: 10.1016/j.molimm.2011.08.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Accepted: 08/27/2011] [Indexed: 12/11/2022]
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Identifying a major locus that regulates spontaneous arthritis in IL-1ra-deficient mice and analysis of potential candidates. Genet Res (Camb) 2011; 93:95-103. [PMID: 21414240 DOI: 10.1017/s0016672310000704] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
To identify genetic loci that regulate spontaneous arthritis in interleukin-1 receptor antagonist (IL-1ra)-deficient mice, an F2 population was created from a cross between Balb/c IL-1ra-deficient mice and DBA/1 IL-1ra-deficient mice. Spontaneous arthritis in the F2 population was examined and recorded. Genotypes of those F2 mice were determined using microsatellite markers. Quantitative trail locus (QTL) analysis was conducted with R/qtlbim. Functions of genes within QTL chromosomal regions were evaluated using a bioinformatics tool, PGMapper, and microarray analysis. Potential candidate genes were further evaluated using GeneNetwork. A total of 137 microsatellite markers with an average of 12 cM spacing along the whole genome were used for determining the correlation of arthritis phenotypes with genotypes of 191 F2 progenies. By whole-genome mapping, we obtained QTLs on chromosomes 1 and 6 that were above the significance threshold for strong Bayesian evidence. The QTL on chromosome 1 had a peak near D1Mit55 and D1Mit425 at 82·6 cM. It may account for as much as 12% of the phenotypic variation in susceptibility to spontaneous arthritis. The QTL region contained 208 known transcripts. According to their functions, Mr1, Pla2g4a and Fasl are outstanding candidate genes. From microarray analysis, 11 genes were selected as favourable candidates based on their function and expression profiles. Three of those 11 genes, Prg4, Ptgs2 and Mr1, correlated with the IL-1ra pathway. Those genes were considered to be the best candidates.
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van den Berg WB. Animal models of arthritis. Rheumatology (Oxford) 2011. [DOI: 10.1016/b978-0-323-06551-1.00087-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Pardee AD, McCurry D, Alber S, Hu P, Epstein AL, Storkus WJ. A therapeutic OX40 agonist dynamically alters dendritic, endothelial, and T cell subsets within the established tumor microenvironment. Cancer Res 2010; 70:9041-52. [PMID: 21045144 DOI: 10.1158/0008-5472.can-10-1369] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Little preclinical modeling currently exists to support the use of OX40 agonists as therapeutic agents in the setting of advanced cancers, as well as the mechanisms through which therapeutic efficacy is achieved. We show that treatment of mice bearing well-established day 17 sarcomas with a novel OX40 ligand-Fc fusion protein (OX40L-Fc) resulted in tumor regression or dormancy in the majority of treated animals. Unexpectedly, dendritic cells (DC) in the progressive tumor microenvironment (TME) acquire OX40 expression and bind fluorescently labeled OX40L-Fc. Furthermore, longitudinal analyses revealed that DCs become enriched in the tumor-draining lymph node (TDLN) of both wild-type and Rag-/- mice within 3 days after OX40L-Fc treatment. By day 7 after treatment, a significant expansion of CXCR3+ T effector cells was noted in the TDLN, and by day 10 after treatment, type 1 polarized T cells exhibiting a reactivated memory phenotype had accumulated in the tumors. High levels of CXCL9 (a CXCR3 ligand) and enhanced expression of VCAM-1 by vascular endothelial cells (VEC) were observed in the TME early after treatment with OX40L-Fc. Notably, these vascular alterations were maintained in Rag-/- mice, indicating that the OX40L-Fc-mediated activation of both DC and VEC occurs in a T-cell-independent manner. Collectively, these findings support a paradigm in which the stimulation of DC, T cells, and the tumor vasculature by an OX40 agonist dynamically orchestrates the activation, expansion, and recruitment of therapeutic T cells into established tumors.
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Affiliation(s)
- Angela D Pardee
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA
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