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Park JS, Yang SC, Jeong HY, Lee SY, Ryu JG, Choi JW, Kang HY, Kim SM, Hwang SH, Cho ML, Park SH. EC-18 prevents autoimmune arthritis by suppressing inflammatory cytokines and osteoclastogenesis. Arthritis Res Ther 2022; 24:254. [PMID: 36397156 PMCID: PMC9670482 DOI: 10.1186/s13075-022-02941-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/21/2022] [Indexed: 11/18/2022] Open
Abstract
Background EC-18, a synthetic monoacetyldiaglyceride, exhibits protective effects against lung inflammation, allergic asthma, and abdominal sepsis. However, there have been no investigations to determine whether EC-18 has preventive potential in autoimmune diseases, especially rheumatoid arthritis (RA). Methods To investigate the efficacy of EC-18 on the development of RA, EC-18 was administered in a collagen-induced arthritis (CIA) murine model and disease severity and the level of inflammatory cytokines in the joint were investigated. The effect of EC-18 on the inflammation-related factors was investigated by flow cytometry, ELISA, western blot, and real-time PCR in splenocytes from mice and in peripheral blood mononuclear cells from healthy and patients with RA. The effect of EC-18 on osteoclastogenesis was investigated. Results EC-18 effectively reduced the clinical and histological severity of arthritis, similar to Janus kinase inhibitors include tofacitinib and baricitinib, in CIA. Furthermore, EC-18 exhibited a synergistic effect with methotrexate in preventing CIA. Treatment with EC-18 effectively reduced the production of inflammatory cytokines in immune cells and osteoclast differentiation in mice and patients with RA. Conclusion These results suggest that EC-18 may be an effective strategy for RA.
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Millrine D, Jenkins RH, Hughes STO, Jones SA. Making sense of IL-6 signalling cues in pathophysiology. FEBS Lett 2022; 596:567-588. [PMID: 34618359 PMCID: PMC9673051 DOI: 10.1002/1873-3468.14201] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 12/15/2022]
Abstract
Unravelling the molecular mechanisms that account for functional pleiotropy is a major challenge for researchers in cytokine biology. Cytokine-receptor cross-reactivity and shared signalling pathways are considered primary drivers of cytokine pleiotropy. However, reports epitomized by studies of Jak-STAT cytokine signalling identify interesting biochemical and epigenetic determinants of transcription factor regulation that affect the delivery of signal-dependent cytokine responses. Here, a regulatory interplay between STAT transcription factors and their convergence to specific genomic enhancers support the fine-tuning of cytokine responses controlling host immunity, functional identity, and tissue homeostasis and repair. In this review, we provide an overview of the signalling networks that shape the way cells sense and interpret cytokine cues. With an emphasis on the biology of interleukin-6, we highlight the importance of these mechanisms to both physiological processes and pathophysiological outcomes.
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Affiliation(s)
- David Millrine
- Division of Infection & ImmunitySchool of MedicineCardiff UniversityUK
- Systems Immunity University Research InstituteCardiff UniversityUK
- Present address:
Medical Research Council Protein Phosphorylation and Ubiquitylation UnitSir James Black CentreSchool of Life SciencesUniversity of Dundee3rd FloorDundeeUK
| | - Robert H. Jenkins
- Division of Infection & ImmunitySchool of MedicineCardiff UniversityUK
- Systems Immunity University Research InstituteCardiff UniversityUK
| | - Stuart T. O. Hughes
- Division of Infection & ImmunitySchool of MedicineCardiff UniversityUK
- Systems Immunity University Research InstituteCardiff UniversityUK
| | - Simon A. Jones
- Division of Infection & ImmunitySchool of MedicineCardiff UniversityUK
- Systems Immunity University Research InstituteCardiff UniversityUK
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He L, Luan H, He J, Zhang M, Qin Q, Hu Y, Cai Y, Sun D, Shi Y, Wang Q. Shikonin attenuates rheumatoid arthritis by targeting SOCS1/JAK/STAT signaling pathway of fibroblast like synoviocytes. Chin Med 2021; 16:96. [PMID: 34600581 PMCID: PMC8487562 DOI: 10.1186/s13020-021-00510-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 09/17/2021] [Indexed: 12/29/2022] Open
Abstract
Background Rheumatoid arthritis is a progressive and systemic autoimmune disease seriously compromises human health. Fibroblast like synoviocytes are the major effectors of proliferation and inflammation in rheumatoid arthritis synovial tissue. Shikonin has anti-inflammatory and immunomodulatory activities. But, its role on synovitis of rheumatoid arthritis is unknown. Methods The DBA/1 male mice were randomly divided into the following three groups (n = 6): (1) the normal control group of mice, (2) the CIA (collagen-induced arthritis) group in which mice suffered from arthritis induced by collagen, (3) the SKN (shikonin) group of mice which got arthritis and given intragastrically with shikonin 4 mg/kg per day continuously for 20 days,(4) the MTX (methotrexate) group of mice which got arthritis and orally administration with shikonin 0.5 mg/kg once two days continuously for 20 days. The therapeutic effect of shikonin on collagen induced arthritis mice was tested by arthritis incidence rate, arthritis score and inflammatory joint histopathology. The invasion, adhesion and migration of fibroblast like synoviocytes induced by tumor necrosis factor-α were applied to measure the anti-synovitis role of shikonin. The effect of shikonin on expression of interleukin-6, interleukin-1β and tumor necrosis factor-α was measured by enzyme linked immunosorbent assay. The interaction between shikonin and suppressor of cytokine signaling 1 was verified by molecular docking. The signaling pathways activated by shikonin were measured by western blot. Results Shikonin decreased the arthritis score and arthritis incidence, and inhibited inflammation of inflamed joints in collagen induced arthritis mice. And shikonin reduced the number of vimentin+cells in collagen induced arthritis mice inflamed joints. Meanwhile, shikonin suppressed tumor necrosis factor-α-induced invasion, adhesion and migration of fibroblast like synoviocytes and reduced the expression of interleukin-6, interleukin-1β and tumor necrosis factor-α. And we found that shikonin targeted suppressor of cytokine signaling 1. More interestingly, shikonin blocked the phosphorylation of Janus kinase 1/signal transducer andactivator of transcription 1/signal transducer andactivator of transcription 6 in synovial tissues and in fibroblast like synoviocytes. Conclusion Shikonin represents a promising new anti-rheumatoid arthritis drug candidate that has anti-synovitis effect in collagen induced arthritis mice and inhibits tumor necrosis factor-α-induced fibroblast like synoviocytes by targeting suppressor of cytokine signaling 1/ Janus kinase/signal transducer andactivator of transcription signaling pathway. These findings demonstrate that shikonin has anti-synovitis effect and has great potential to be a new drug for the treatment of rheumatoid arthritis. Supplementary Information The online version contains supplementary material available at 10.1186/s13020-021-00510-6.
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Affiliation(s)
- Lianhua He
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, No.1120, Lianhua Road, Futian District, Shenzhen, 518036, China.,The Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| | - Huijie Luan
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, No.1120, Lianhua Road, Futian District, Shenzhen, 518036, China.,The Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| | - Juan He
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, No.1120, Lianhua Road, Futian District, Shenzhen, 518036, China.,The Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| | - Miaomiao Zhang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, No.1120, Lianhua Road, Futian District, Shenzhen, 518036, China.,The Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| | - Qingxia Qin
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, No.1120, Lianhua Road, Futian District, Shenzhen, 518036, China.,The Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| | - Yiping Hu
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, No.1120, Lianhua Road, Futian District, Shenzhen, 518036, China.,The Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| | - Yueming Cai
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, No.1120, Lianhua Road, Futian District, Shenzhen, 518036, China.,The Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China
| | - Desheng Sun
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, China
| | - Yu Shi
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, China.
| | - Qingwen Wang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, No.1120, Lianhua Road, Futian District, Shenzhen, 518036, China. .,The Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen, China.
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4
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Canavan M, Marzaioli V, McGarry T, Bhargava V, Nagpal S, Veale DJ, Fearon U. Rheumatoid arthritis synovial microenvironment induces metabolic and functional adaptations in dendritic cells. Clin Exp Immunol 2020; 202:226-238. [PMID: 32557565 PMCID: PMC7597596 DOI: 10.1111/cei.13479] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/29/2020] [Accepted: 06/08/2020] [Indexed: 12/11/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease which causes degradation of cartilage and bone. It is well appreciated that the pathogenic hallmark of RA is the mass influx of inflammatory cells into the joint. However, the role that dendritic cells (DC) may play in this inflammatory milieu is still relatively unexplored. Moreover, the contribution this unique synovial microenvironment has on DC maturation is still unknown. Using monocyte-derived DC (MoDC), we established an in-vitro model to recapitulate the synovial microenvironment to explore DC maturation. MoDC treated with conditioned media from ex-vivo synovial tissue biopsy cultures [explant-conditioned media (ECM)] have increased expression of proinflammatory cytokines, chemokines and adhesion molecules. ECM DC have increased expression of CD83 and CC-chemokine receptor (CCR)7 and decreased expression of CCR5 and phagocytic capacity, suggestive of heightened DC maturation. ECM-induced maturation is concomitant with altered cellular bioenergetics, whereby increased expression of glycolytic genes and increased glucose uptake are observed in ECM DC. Collectively, this results in a metabolic shift in DC metabolism in favour of glycolysis. These adaptations are in-part mediated via signal transducer and activator of transcription-3 (STAT-3), as demonstrated by decreased expression of proinflammatory cytokines and glycolytic genes in ECM DC in response to STAT-3 inhibition. Finally, to translate these data to a more in-vivo clinically relevant setting, RNA-seq was performed on RA synovial fluid and peripheral blood. We identified enhanced expression of a number of glycolytic genes in synovial CD1c+ DC compared to CD1c+ DC in circulation. Collectively, our data suggest that the synovial microenvironment in RA contributes to DC maturation and metabolic reprogramming.
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Affiliation(s)
- M. Canavan
- Molecular RheumatologyTrinity Biomedical Sciences InstituteTrinity College DublinDublinIreland
- Centre for Arthritis and Rheumatic Diseases, EULAR Centre of ExcellenceSt. Vincent’s University Hospital and University College DublinDublinIreland
| | - V. Marzaioli
- Molecular RheumatologyTrinity Biomedical Sciences InstituteTrinity College DublinDublinIreland
- Centre for Arthritis and Rheumatic Diseases, EULAR Centre of ExcellenceSt. Vincent’s University Hospital and University College DublinDublinIreland
| | - T. McGarry
- Molecular RheumatologyTrinity Biomedical Sciences InstituteTrinity College DublinDublinIreland
| | - V. Bhargava
- ImmunologyJanssen Research & DevelopmentSpring HousePAUSA
| | - S. Nagpal
- ImmunologyJanssen Research & DevelopmentSpring HousePAUSA
| | - D. J. Veale
- Centre for Arthritis and Rheumatic Diseases, EULAR Centre of ExcellenceSt. Vincent’s University Hospital and University College DublinDublinIreland
| | - U. Fearon
- Molecular RheumatologyTrinity Biomedical Sciences InstituteTrinity College DublinDublinIreland
- Centre for Arthritis and Rheumatic Diseases, EULAR Centre of ExcellenceSt. Vincent’s University Hospital and University College DublinDublinIreland
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Santos MRG, Queiroz-Junior CM, Madeira MFM, Machado FS. Suppressors of cytokine signaling (SOCS) proteins in inflammatory bone disorders. Bone 2020; 140:115538. [PMID: 32730926 DOI: 10.1016/j.bone.2020.115538] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/18/2020] [Accepted: 07/09/2020] [Indexed: 02/07/2023]
Abstract
Suppressor of cytokine signaling (SOCS) proteins are significant regulators of cellular immune responses. Therefore, the role of SOCS in bone-inflammatory disorders, including arthritis and periodontitis, has been investigated in experimental and clinical conditions. Recent evidence shows that SOCS proteins are expressed in major bone-related cells, including osteoblasts, osteoclasts, chondrocytes and synoviocytes, although their direct role in these cells is not fully described. These signaling molecules, especially SOCS1, 2 and 3, were shown to play critical roles in the control of bone resorption associated to inflammation. This review focuses on the involvement of SOCS proteins in inflammatory bone remodeling, including their direct and indirect role in the control of osteoclast hyperactivation, during arthritis and periodontitis. The description of the roles of SOCS proteins in inflammatory bone diseases highlights the pathways involved in the pathophysiology of these conditions and, thus, may contribute to the development and improvement of potential therapeutic interventions.
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Affiliation(s)
- Mariana Rates Gonzaga Santos
- Department of Biochemistry and Immunology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Celso M Queiroz-Junior
- Department of Morphology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mila Fernandes Moreira Madeira
- Department of Microbiology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | - Fabiana Simão Machado
- Department of Biochemistry and Immunology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil; Program in Health Sciences: Infectious Diseases and Tropical Medicine/Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil.
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6
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Lamana A, Villares R, Seoane IV, Andrés N, Lucas P, Emery P, Vital EM, Triguero-Martínez A, Marquez A, Ortiz AM, Maxime R, Martínez C, Martín J, Gomariz RP, Ponchel F, González-Álvaro I, Mellado M. Identification of a Human SOCS1 Polymorphism That Predicts Rheumatoid Arthritis Severity. Front Immunol 2020; 11:1336. [PMID: 32670294 PMCID: PMC7332777 DOI: 10.3389/fimmu.2020.01336] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 05/26/2020] [Indexed: 12/17/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by an autoimmune response in the joints and an exacerbation of cytokine responses. A minority of patients with RA experience spontaneous remission, but most will show moderate/high disease activity, with aggressive joint damage and multiple systemic manifestations. There is thus is a great need to identify prognostic biomarkers for disease risk to improve diagnosis and prognosis, and to inform on the most appropriate therapy. Here we focused on suppressor of cytokine signaling 1 (SOCS1), a physiological negative regulator of cytokines that modulates cell activation. Using four independent cohorts of patients with arthritis, we characterized the correlation between SOCS1 mRNA levels and clinical outcome. We found a significant inverse correlation between SOCS1 mRNA expression and disease activity throughout the follow-up of patients with RA. Lower baseline SOCS1 levels were associated with poorer disease control in response to methotrexate and other conventional synthetic disease-modifying anti-rheumatic drugs in early arthritis, and to rituximab in established (active) RA. Moreover, we identified several single nucleotide polymorphisms in the SOCS1 gene that correlated with SOCS1 mRNA expression, and that might identify those patients with early arthritis that fulfill RA classification criteria. One of them, rs4780355, is in linkage disequilibrium with a microsatellite (TTTTC)3−5, mapped 0.9 kb downstream of the SNP, and correlated with reduced SOCS1 expression in vitro. Overall, our data support the association between SOCS1 expression and disease progression, disease severity and response to treatment in RA. These observations underlie the relevance of SOCS1 mRNA levels for stratifying patients prognostically and guiding therapeutic decisions.
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Affiliation(s)
- Amalia Lamana
- Rheumatology Service, Instituto de Investigación Sanitaria La Princesa, Hospital Universitario de la Princesa, Madrid, Spain
| | - Ricardo Villares
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - Iria V Seoane
- Department of Cellular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Nuria Andrés
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - Pilar Lucas
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - Paul Emery
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), The University of Leeds, Leeds, United Kingdom
| | - Edward M Vital
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), The University of Leeds, Leeds, United Kingdom
| | - Ana Triguero-Martínez
- Rheumatology Service, Instituto de Investigación Sanitaria La Princesa, Hospital Universitario de la Princesa, Madrid, Spain
| | - Ana Marquez
- Institute of Parasitology and Biomedicine López-Neyra, CSIC, Granada, Spain
| | - Ana M Ortiz
- Rheumatology Service, Instituto de Investigación Sanitaria La Princesa, Hospital Universitario de la Princesa, Madrid, Spain
| | - Robin Maxime
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), The University of Leeds, Leeds, United Kingdom
| | - Carmen Martínez
- Department of Cellular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Martín
- Institute of Parasitology and Biomedicine López-Neyra, CSIC, Granada, Spain
| | - Rosa P Gomariz
- Department of Cellular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Frederique Ponchel
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), The University of Leeds, Leeds, United Kingdom
| | - Isidoro González-Álvaro
- Rheumatology Service, Instituto de Investigación Sanitaria La Princesa, Hospital Universitario de la Princesa, Madrid, Spain
| | - Mario Mellado
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
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ErMiao San Inhibits Angiogenesis in Rheumatoid Arthritis by Suppressing JAK/STAT Signaling Pathways. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020. [DOI: 10.1155/2020/4381212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
ErMiao San (EMS) is composed of the Cortex Phellodendri chinensis and Atractylodes lancea, and it has the function of eliminating heat and excreting dampness in terms of traditional Chinese medicine to damp heat syndrome. Previous reports indicate that EMS possesses anti-inflammatory activity; however, its action on angiogenesis of rheumatoid arthritis (RA) has not been clarified. The present study aims to determine the antiangiogenic activity of EMS in collagen-induced arthritis (CIA) mice and in various angiogenesis models. Our data showed that EMS (5 g/kg) markedly reduced the immature blood vessels in synovial membrane tissues of inflamed joints from CIA mice. It also inhibited vascular endothelial growth factor (VEGF)-induced microvessel sprout formation ex vivo. Meanwhile, EMS suppressed VEGF-induced migration, invasion, adhesion, and tube formation of human umbilical vein endothelial cells (HUVECs). Moreover, EMS significantly reduced the expression of angiogenic activators including interleukin (IL)-1β, IL-6, and tumor necrosis factor-alpha (TNF-α) in synovium of CIA mice. More interestingly, EMS blocked the autophosphorylation of VEGF-induced JAK1, STAT1, and STAT6 in CIA mice and VEGF-induced HUVECs. These findings suggest for the first time that EMS possesses the antiangiogenic effect in RA in vivo, ex vivo, and in vitro by interrupting the targeting of JAK/STAT activation.
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Qiu M, Mo L, Li J, Liang H, Zhu W, Zheng X, Duan X, Xu W. Effects of miR-150-5p on the growth and SOCS1 expression of rheumatoid arthritis synovial fibroblasts. Clin Rheumatol 2019; 39:909-917. [PMID: 31879859 DOI: 10.1007/s10067-019-04894-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 10/19/2019] [Accepted: 12/12/2019] [Indexed: 01/10/2023]
Abstract
OBJECTIVE miR-150-5p has been implicated in the regulation and onset of immune diseases. We investigated the effects of miR-150-5p on the functions of RA synovial fibroblasts (RASFs). METHOD The binding site between suppressor of cytokine signaling 1 (SOCS1) and miR-150-5p was analyzed using European Bioinformatics Institute database, and the 3' UTR of SOCS1 mRNA, including the binding site, was amplified and ligated to the 3'-end of LUC2 gene in the pmirGL0 dual-luciferase vector. The pmirGL0 vector and corresponding mimics were subsequently co-transfected into 293T cells to compare the relative fluorescence intensity of LUC2 between the miR-150-5p mimics and the negative control (NC) mimics groups. Further, the RASF cell line MH7A was transfected with miR-150-5p or NC mimics and subjected to flow cytometric analysis, cell counting kit-8 assay, western blot analysis, qPCR, and enzyme-linked immunosorbent (ELISA) assay 48 h after transfection. RESULTS miR-150-5p mimics resulted in a lower cell apoptotic rate and proportion of cells in the S phase. Using a dual-luciferase reporter gene assay, we then found that SOCS1 is a potential target of miR-150-5p. Compared with NC mimics, miR-150-5p mimics significantly decreased the protein and mRNA expression levels of SOCS1. ELISA assay showed that miR-150-5p mimics increased interleukin-6 level in the cell culture medium but did not influence tumor necrosis factor-alpha levels. CONCLUSIONS Overall, the growth-promoting effect of miR-150-5p on MH7A cells may be attributed to the miR-150-5p-induced degradation of SOCS1 mRNA, suggesting a potential therapeutic target for RA.Key Points• SOCS1 is a potential target of miR-150-5p.• miR-150-5p promoted the growth of RASF cell line MH7A.• miR-150-5p increased the secretion of IL-6 but did not significantly affect TNF-α levels in MH7A cells.
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Affiliation(s)
- Mingliang Qiu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
- Department of Rheumatology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Lisha Mo
- Department of Rheumatology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Juxiang Li
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Hua Liang
- Department of Clinical Laboratory, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Weina Zhu
- Department of Pediatrics, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Xiangjuan Zheng
- Department of Chemistry, Nanchang University, Nanchang, 330031, China
| | - Xinwang Duan
- Department of Rheumatology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Weidong Xu
- Department of Rheumatology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China.
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Vyas SP, Hansda AK, Goswami R. Rheumatoid arthritis: ‘melting pot’ of T helper subsets. Int Rev Immunol 2019; 38:212-231. [PMID: 31155981 DOI: 10.1080/08830185.2019.1621865] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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10
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Dangarembizi R, Rummel CD, Roth J, Erlwanger KH, Madziva MT, Harden LM. Pyrogenic and neuroinflammatory properties of zymosan and its potential as an alternative to live yeast in antipyretic drug testing. Facets (Ott) 2019. [DOI: 10.1139/facets-2018-0045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Zymosan, an immunogenic cell wall extract of Saccharomyces cerevisiae has potential for use as an experimental pyrogen. However, the short-lived sickness responses noted with intraperitoneal and intra-articular administration of zymosan limits investigations on the long-term effectiveness of antipyretic drugs. Thus, there remains a need to establish an alternative route of zymosan administration that could induce long-lived fevers and inflammation. We injected male Sprague Dawley rats (250–300 g) subcutaneously with zymosan (30 or 300 mg/kg) or saline; n = 7–8. We measured core body temperature, cage activity, food intake and body mass for 24 h after injection. Blood and brain samples were collected at 2, 8, and 18 h after injection. Zymosan (300 mg/kg) induced fever, lethargy, and anorexia, which lasted for 24 h. Zymosan-induced sickness responses were accompanied by increased blood plasma levels of interleukin (IL)-6 and tumor necrosis factor (TNF)-α; activation of inflammatory transcription factors (nuclear factor (NF) for IL-6, signal transducer and activator of transcription (STAT)-3, and NF-κB) in the hypothalamus and circumventricular organs; and increased hypothalamic mRNA expression of TNF-α, IL-1β, and IL-6 and rate-limiting enzymes for prostaglandin synthesis. Our results confirm the suitability of subcutaneous administration of zymosan for screening antipyretic and anti-inflammatory drugs in rats.
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Affiliation(s)
- Rachael Dangarembizi
- Brain Function Research Group, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa
- Department of Physiology and Anatomy, Faculty of Medicine, National University of Science and Technology, P.O. Box AC 939, Ascot, Bulawayo, Zimbabwe
| | - Christoph D. Rummel
- Institute of Veterinary Physiology and Biochemistry, Justus Liebig University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany
| | - Joachim Roth
- Institute of Veterinary Physiology and Biochemistry, Justus Liebig University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany
| | - Kennedy H. Erlwanger
- School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa
| | - Michael T. Madziva
- School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa
| | - Lois M. Harden
- Brain Function Research Group, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa
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Park J, Choi S, Hwang S, Kim S, Choi J, Jung K, Kwon JY, Kong Y, Cho M, Park S. CR6-interacting factor 1 controls autoimmune arthritis by regulation of signal transducer and activator of transcription 3 pathway and T helper type 17 cells. Immunology 2019; 156:413-421. [PMID: 30585643 PMCID: PMC6418438 DOI: 10.1111/imm.13042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 10/31/2018] [Accepted: 12/11/2018] [Indexed: 12/17/2022] Open
Abstract
CR6-interacting factor 1 (CRIF1) is a nuclear protein that interacts with other nuclear factors and androgen receptors, and is implicated in the regulation of cell cycle progression and cell growth. In this study, we examined whether CRIF1 exerts an immunoregulatory effect by modulating the differentiation and function of pathogenic T cells. To this end, the role of CRIF1 in rheumatoid arthritis, a systemic autoimmune disease characterized by hyperplasia of synovial tissue and progressive destruction of articular cartilage structure by pathogenic immune cells [such as T helper type 17 (Th17) cells], was investigated. p3XFLAG-CMV-10-CRIF1 was administered to mice with collagen-induced arthritis 8 days after collagen type II immunization and the disease severity and histologic evaluation, and osteoclastogenesis were assessed. CRIF1 over-expression in mice with collagen-induced arthritis attenuated the clinical and histological signs of inflammatory arthritis. Furthermore, over-expression of CRIF1 in mice with arthritis significantly reduced the number of signal transducer and activator of transcription 3-mediated Th17 cells in the spleen as well as osteoclast differentiation from bone marrow cells. To investigate the impact of loss of CRIF1 in T cells, we generated a conditional CRIF1 gene ablation model using CD4-cre transgenic mice and examined the frequency of Th17 cells and regulatory T cells. Deficiency of CRIF1 in CD4+ cells promoted the production of interleukin-17 and reduced the frequency of regulatory T cells. These results suggest a role for CRIF1 in modulating the activities of Th17 cells and osteoclasts in rheumatoid arthritis.
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Affiliation(s)
- Jin‐Sil Park
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
| | - Si‐Young Choi
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
| | - Sun‐Hee Hwang
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
| | - Sung‐Min Kim
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
| | - JeongWon Choi
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
| | - Kyung‐Ah Jung
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
| | - Ji Ye Kwon
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
| | - Young‐Yun Kong
- School of Biological SciencesSeoul National UniversitySeoulSouth Korea
| | - Mi‐La Cho
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
- Department of Medical Life ScienceCollege of MedicineThe Catholic University of KoreaSeoulKorea
- Department of Biomedicine & Health Sciences, College of MedicineThe Catholic University of KoreaSeoulKorea
| | - Sung‐Hwan Park
- The Rheumatism Research CenterCatholic Research Institute of Medical ScienceThe Catholic University of KoreaSeoulSouth Korea
- Divison of RheumatologyDepartment of Internal MedicineThe Catholic University of KoreaSeoulSouth Korea
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12
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Pérez-Baos S, Gratal P, Barrasa JI, Lamuedra A, Sánchez-Pernaute O, Herrero-Beaumont G, Largo R. Inhibition of pSTAT1 by tofacitinib accounts for the early improvement of experimental chronic synovitis. JOURNAL OF INFLAMMATION-LONDON 2019; 16:2. [PMID: 30728752 PMCID: PMC6352431 DOI: 10.1186/s12950-019-0206-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/20/2019] [Indexed: 01/24/2023]
Abstract
Background In order to gain insight into the early effects drawn by JAK inhibitors on intra-joint JAK/STAT-dependent signaling, we sought synovial activation of STATs and their end-products, along with their modification with tofacitinib (TOFA), at flare-up in antigen induced arthritis (AIA). New Zealand rabbits were randomly assigned to four groups –healthy controls, AIA, TOFA-treated AIA, or TOFA-treated controls–. AIA was induced with 4 weekly intra-articular ovalbumin injections in sensitized animals. TOFA (10 mg·kg− 1·day− 1) was administered for the last 2 weeks. Animals were euthanized 24 h after the last injection. Results AIA animals showed high-grade synovitis, which was partially improved by TOFA. No effects of the treatment were found on serum C-reactive protein or on the synovial macrophage infiltration at this stage. Synovial MMP-1,-3 and -13 expression levels in treated AIA rabbits were found to drop to those of controls, while a downregulation of IL6, IFNγ and TNF was evident in treated versus untreated AIA rabbits. Concurrently, a reduction in pSTAT1 and SOCS1, but not in pSTAT3, SOCS3 or active NFκB-p65, was noted with TOFA. Conclusions Studying the mechanism of action of immunomodulatory drugs represents a major challenge in vivo, since drug-dependent decreases in inflammation very likely mask direct effects on disease mechanisms. This study design allowed us to prevent any confounding effect resulting from reductions in the overall inflammatory status, hence assessing the true pharmacological actions of TOFA in a very severe synovitis. Our findings point to pSTAT1 and MMPs as early molecular readouts of response to this JAK inhibitor. Electronic supplementary material The online version of this article (10.1186/s12950-019-0206-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sandra Pérez-Baos
- 1Bone and Joint Research Unit, Rheumatology Department, IIS-Fundación Jiménez Díaz UAM, Avenida Reyes Católicos, 2. 28040, Madrid, Spain
| | - Paula Gratal
- 1Bone and Joint Research Unit, Rheumatology Department, IIS-Fundación Jiménez Díaz UAM, Avenida Reyes Católicos, 2. 28040, Madrid, Spain
| | - Juan I Barrasa
- 1Bone and Joint Research Unit, Rheumatology Department, IIS-Fundación Jiménez Díaz UAM, Avenida Reyes Católicos, 2. 28040, Madrid, Spain.,2Department of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
| | - Ana Lamuedra
- 1Bone and Joint Research Unit, Rheumatology Department, IIS-Fundación Jiménez Díaz UAM, Avenida Reyes Católicos, 2. 28040, Madrid, Spain
| | - Olga Sánchez-Pernaute
- 1Bone and Joint Research Unit, Rheumatology Department, IIS-Fundación Jiménez Díaz UAM, Avenida Reyes Católicos, 2. 28040, Madrid, Spain
| | - Gabriel Herrero-Beaumont
- 1Bone and Joint Research Unit, Rheumatology Department, IIS-Fundación Jiménez Díaz UAM, Avenida Reyes Católicos, 2. 28040, Madrid, Spain
| | - Raquel Largo
- 1Bone and Joint Research Unit, Rheumatology Department, IIS-Fundación Jiménez Díaz UAM, Avenida Reyes Católicos, 2. 28040, Madrid, Spain
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13
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Wang S, Wang L, Wu C, Sun S, Pan JH. E2F2 directly regulates the STAT1 and PI3K/AKT/NF-κB pathways to exacerbate the inflammatory phenotype in rheumatoid arthritis synovial fibroblasts and mouse embryonic fibroblasts. Arthritis Res Ther 2018; 20:225. [PMID: 30286793 PMCID: PMC6235203 DOI: 10.1186/s13075-018-1713-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 09/04/2018] [Indexed: 11/30/2022] Open
Abstract
Background Expression of E2F transcription factor 2 (E2F2), a transcription factor related to the cell cycle, is abnormally high in rheumatoid arthritis synovial fibroblasts (RASFs). Deregulated expression of E2F2 leads to abnormal production of proinflammatory cytokines, such as interleukin (IL)-1α, IL-1β, and tumor necrosis factor (TNF)-α in RASFs. However, the underlying mechanism by which E2F2 regulates expression of IL-1α, IL-1β, and TNF-α has not been fully elucidated. This study aimed to elucidate this mechanism and confirm the pathological roles of E2F2 in rheumatoid arthritis (RA). Methods E2f2 knockout (KO) and wild-type (WT) mice were injected with collagen to induce RA. Cytokine production was assessed by quantitative real-time polymerase chain reaction (qRT-PCR) and enzyme-linked immunosorbent assay (ELISA). Western blot and qRT-PCR were performed to evaluate the effect of E2F2 on signaling pathway activity. Chromatin immunoprecipitation (ChIP)-PCR and luciferase assays were used to detect the transcriptional activity of target genes of E2F2. Nuclear translocation of STAT1 and p65 were assayed by Western blot, co-immunoprecipitation (co-IP), and immunofluorescence experiments. Results The occurrence and severity of collagen-induced arthritis were decreased in E2f2-KO mice compared with WT mice. The expression of IL-1α, IL-1β, and TNF-α was also suppressed in mouse embryonic fibroblasts (MEFs) from E2f2-KO mice and RASFs with E2F2 knocked down. Mechanistically, we found that E2F2 can upregulate the expression of STAT1 and MyD88 through direct binding to their promoters, facilitate the formation of STAT1/MyD88 complexes, and consequently activate AKT. However, silencing STAT1/MyD88 or inactivating AKT significantly attenuated the induction of IL-1α, IL-1β, and TNF-α caused by the introduction of E2F2. Conclusions This study confirms the pathological role of E2F2 in RA and found that the E2F2-STAT1/MyD88-Akt axis is closely related with the inflammatory phenotype in RASFs.
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Affiliation(s)
- Shiguan Wang
- Medical and Life Science College, University of Jinan, Jinan, 250062, Shandong, China.,Shandong Medicinal Biotechnology Centre, Jingshi Road, Jinan, 250000, Shandong, China.,Key Lab for Biotechnology Drugs of Ministry of Health, Jinan, 250000, Shandong, China
| | - Lin Wang
- Shandong Medicinal Biotechnology Centre, Jingshi Road, Jinan, 250000, Shandong, China.,Key Lab for Biotechnology Drugs of Ministry of Health, Jinan, 250000, Shandong, China.,Key Lab for Rare & Uncommon Diseases, Jinan, 250000, Shandong, China
| | - Changshun Wu
- Shandong Provincial Hospital affiliated to Shandong University, Jinan, 250000, Shandong, China
| | - Shui Sun
- Shandong Provincial Hospital affiliated to Shandong University, Jinan, 250000, Shandong, China
| | - Ji-Hong Pan
- Shandong Medicinal Biotechnology Centre, Jingshi Road, Jinan, 250000, Shandong, China. .,Key Lab for Biotechnology Drugs of Ministry of Health, Jinan, 250000, Shandong, China. .,Key Lab for Rare & Uncommon Diseases, Jinan, 250000, Shandong, China.
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14
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You C, Zu J, Liu X, Kong P, Song C, Wei R, Zhou C, Wang Y, Yan J. Synovial fibroblast-targeting liposomes encapsulating an NF-κB-blocking peptide ameliorates zymosan-induced synovial inflammation. J Cell Mol Med 2018; 22:2449-2457. [PMID: 29383874 PMCID: PMC5867099 DOI: 10.1111/jcmm.13549] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 12/19/2017] [Indexed: 12/29/2022] Open
Abstract
Synovial fibroblasts (SFs) play a crucial role in the inflammatory process of rheumatoid arthritis (RA). The highly activated NF‐κB signal in SFs is responsible for most of the synovial inflammation associated with this disease. In this study, we have developed an SF‐targeting liposomal system that encapsulates the NF‐κB‐blocking peptide (NBD peptide) HAP‐lipo/NBD. HAP‐lipo/NBDs demonstrated efficient SF‐specific targeting in vitro and in vivo. Our study also showed a significant inhibitory effect of HAP‐lipo/NBD on NF‐κB activation, inflammatory cytokine release and SF migration capability after zymosan stimulation. Furthermore, the systemic administration of HAP‐lipo/NBDs significantly inhibited synovial inflammation and improved the pathological scores of arthritis induced by zymosan. Thus, these results suggest that an SF‐targeting NF‐κB‐blocking strategy is a potential approach for the development of alternative, targeted anti‐RA therapies.
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Affiliation(s)
- Changcheng You
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Jianing Zu
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Xiaoqi Liu
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Pengyu Kong
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Chengchao Song
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Rongzhi Wei
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Changlong Zhou
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Yufu Wang
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Jinglong Yan
- Department of Orthopedics, Second Affiliated Hospital, Harbin Medical University, Harbin, China
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15
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Gui T, He BS, Gan Q, Yang C. Enhanced SOCS3 in osteoarthiritis may limit both proliferation and inflammation. Biotech Histochem 2017; 92:107-114. [PMID: 28296552 DOI: 10.1080/10520295.2017.1278792] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Osteoarthritis (OA) is a degenerative joint disease that is characterized by localized inflammatory and secondary proliferative changes. Suppressor of cytokine signaling 3 (SOCS3) is elevated during OA development. We investigated the effects of this protein on human chondrocyte survival in OA and the inflammatory response together with the mechanisms of these effects. Small interfering RNA (siRNA) was used to knock down the expression of SOCS3 in interleukin(IL)-1β-induced primary human osteoarthritic chondrocytes. We found that siRNA-mediated SOCS3 knock-down in human osteoarthritic chondrocytes increased production of IL-1β-induced prostaglandin E2, cell growth, transcript level and nuclear translocation of cyclin D1. Silencing of SOCS3 resulted in altered expression of nuclear factor-kappa-B (NF-κB) and cyclooxygenase (COX2). Our findings indicate that enhanced SOCS3 could have contradictory influences on OA development. SOCS3 might protect damaged joints by its anti-inflammatory effect and by inhibition of over-augmented cartilage tissue repair, which could exhibit inhibitory properties for joint inflammation, abnormal chondrocyte clustering and osteophyte formation in OA. On the other hand, SOCS3 might reduce chondrocyte growth response, which would delay repair of subchondral cancellous bone damage in OA owing to its anti-proliferation effect. The anti-inflammation and growth inhibition effects exhibited by enhanced SOCS3 in OA appear to be related to its capacity to down-regulate expression levels of NF-κB and COX2.
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Affiliation(s)
- T Gui
- a Department of Orthopedic Surgery , Hubei Woman and Child Hospital , Wuhan , China
| | - B S He
- a Department of Orthopedic Surgery , Hubei Woman and Child Hospital , Wuhan , China
| | - Q Gan
- a Department of Orthopedic Surgery , Hubei Woman and Child Hospital , Wuhan , China
| | - C Yang
- a Department of Orthopedic Surgery , Hubei Woman and Child Hospital , Wuhan , China
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16
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Son DJ, Kim DH, Nah SS, Park MH, Lee HP, Han SB, Venkatareddy U, Gann B, Rodriguez K, Burt SR, Ham YW, Jung YY, Hong JT. Novel synthetic (E)-2-methoxy-4-(3-(4-methoxyphenyl) prop-1-en-1-yl) phenol inhibits arthritis by targeting signal transducer and activator of transcription 3. Sci Rep 2016; 6:36852. [PMID: 27845373 PMCID: PMC5109275 DOI: 10.1038/srep36852] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 10/21/2016] [Indexed: 01/23/2023] Open
Abstract
Rheumatoid arthritis (RA) is a severely debilitating chronic autoimmune disease that leads to long-term joint damage. Signal transducer and activator of transcription 3 (STAT3)-targeted small molecules have shown promise as therapeutic drugs for treating RA. We previously identified (E)-2,4-bis(p-hydroxyphenyl)-2-butenal (BHPB), a tyrosine-fructose Maillard reaction product, as a small molecule with potent anti-inflammatory and anti-arthritic properties, mediated through the inhibition of STAT3 activation. The aim of this study was to develop a novel BHPH derivative with improved anti-arthritic properties and drug-likeness. We designed and synthesised (E)-2-methoxy-4-(3-(4-methoxyphenyl) prop-1-en-1-yl) phenol (MMPP), a novel synthetic BHPB analogue, and investigated its anti-inflammatory and anti-arthritic activities in experimentally-induced RA. We showed that MMPP strongly inhibited pro-inflammatory responses by inhibiting in vitro STAT3 activation and its downstream signalling in murine macrophages and human synoviocytes from patients with RA. Furthermore, we demonstrated that MMPP exhibited potent anti-arthritic activity in a collagen antibody-induced arthritis (CAIA) mouse model in vivo. Collectively, our results suggest that MMPP has great potential for use in the treatment of RA.
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Affiliation(s)
- Dong Ju Son
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk 28160, Korea
| | - Dae Hwan Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk 28160, Korea
| | - Seong-Su Nah
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Soonchunhyang University, Asan, Chungnam 31538, Korea
| | - Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk 28160, Korea
| | - Hee Pom Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk 28160, Korea
| | - Sang Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk 28160, Korea
| | - Udumula Venkatareddy
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84604, USA
| | - Benjamin Gann
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84604, USA
| | - Kevin Rodriguez
- Department of Chemistry, Utah Valley University, 800 W University Pkwy, Orem, UT 84058, USA
| | - Scott R. Burt
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84604, USA
| | - Young Wan Ham
- Department of Chemistry, Utah Valley University, 800 W University Pkwy, Orem, UT 84058, USA
| | - Yu Yeon Jung
- Department of Dental Hygiene, Gwangyang Health Sciences University, Gwnagyang, Jeonnam 57764, Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk 28160, Korea
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17
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Ahmad SF, Ansari MA, Nadeem A, Zoheir KMA, Bakheet SA, Alsaad AMS, Al-Shabanah OA, Attia SM. STA-21, a STAT-3 inhibitor, attenuates the development and progression of inflammation in collagen antibody-induced arthritis. Immunobiology 2016; 222:206-217. [PMID: 27717524 DOI: 10.1016/j.imbio.2016.10.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 09/27/2016] [Accepted: 10/02/2016] [Indexed: 01/12/2023]
Abstract
We set out to investigate the influence of STA-21, a dynamic STAT-3 inhibitor, on the expansion and progression of rheumatoid arthritis (RA), and to determine its potential mechanisms of action in a mouse model of collagen antibody-induced arthritis (CAIA). To this end, arthritis was induced via intravenous (IV) injection of Balb/c mice with a cocktail of antibodies directed against type II collagen (1.5μg/mouse, IV), followed by lipopolysaccharide (LPS) at a dose of (25μg/mouse, i.p.) on day 3. Mice were then left untreated or were simultaneously treated with STA-21 (0.5mg/kg, i.p., once daily for 2 weeks) followed by evaluation for clinical and histological features of arthritic inflammation and flow cytometric analysis of cytokines and transcription factors in peripheral blood. STA-21 enhanced the clinical course of arthritis in CAIA mice and decreased CD8+RORγt+ and CD8+IL-21+ cells while inducing the production of CD8+Foxp3+ cells. Furthermore, STA-21 prevented the production of TNF-α and IL-6 in peripheral blood and increased IL-27 production by CD14+ cells. Moreover, STA-21 not only regulates Th1/Th2 serum cytokine levels but also the mRNA and protein expression of key factors including NF-κB p65, RORγt, T-bet, IL-4, GATA-3, JAK1, Stat3, and IL-21. Thus, administration of the Stat3 inhibitor STA-21 inhibits cellular signaling pathways and downstream activation of key transcription factors previously shown to play key roles in the pathogenesis of RA. Therefore, these data suggest that STA-21 could be considered as a potential treatment for patients with RA.
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Affiliation(s)
- Sheikh Fayaz Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
| | - Mushtaq Ahmad Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Khairy M A Zoheir
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; Department of Cell Biology, National Research Centre, Cairo, Egypt
| | - Saleh A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Abdulaziz M S Alsaad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Othman A Al-Shabanah
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
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18
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Mahony R, Ahmed S, Diskin C, Stevenson NJ. SOCS3 revisited: a broad regulator of disease, now ready for therapeutic use? Cell Mol Life Sci 2016; 73:3323-36. [PMID: 27137184 PMCID: PMC11108554 DOI: 10.1007/s00018-016-2234-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/24/2016] [Accepted: 04/19/2016] [Indexed: 12/17/2022]
Abstract
Since their discovery, SOCS have been characterised as regulatory cornerstones of intracellular signalling. While classically controlling the JAK/STAT pathway, their inhibitory effects are documented across several cascades, underpinning their essential role in homeostatic maintenance and disease. After 20 years of extensive research, SOCS3 has emerged as arguably the most important family member, through its regulation of both cytokine- and pathogen-induced cascades. In fact, low expression of SOCS3 is associated with autoimmunity and oncogenesis, while high expression is linked to diabetes and pathogenic immune evasion. The induction of SOCS3 by both viruses and bacteria and its impact upon inflammatory disorders, underscores this protein's increasing clinical potential. Therefore, with the aim of highlighting SOCS3 as a therapeutic target for future development, this review revisits its multi-faceted immune regulatory functions and summarises its role in a broad ranges of diseases.
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Affiliation(s)
- R Mahony
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, Dublin, Ireland
| | - S Ahmed
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, Dublin, Ireland
| | - C Diskin
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, Dublin, Ireland
| | - N J Stevenson
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, Dublin, Ireland.
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Rosillo MA, Sánchez-Hidalgo M, González-Benjumea A, Fernández-Bolaños JG, Lubberts E, Alarcón-de-la-Lastra C. Preventive effects of dietary hydroxytyrosol acetate, an extra virgin olive oil polyphenol in murine collagen-induced arthritis. Mol Nutr Food Res 2015; 59:2537-46. [DOI: 10.1002/mnfr.201500304] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 09/08/2015] [Accepted: 09/11/2015] [Indexed: 12/22/2022]
Affiliation(s)
| | | | | | | | - Erik Lubberts
- Department of Rheumatology; Erasmus MC; University Medical Center; Rotterdam The Netherlands
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The role of "bone immunological niche" for a new pathogenetic paradigm of osteoporosis. Anal Cell Pathol (Amst) 2015; 2015:434389. [PMID: 26491648 PMCID: PMC4605147 DOI: 10.1155/2015/434389] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 09/09/2015] [Indexed: 12/13/2022] Open
Abstract
Osteoporosis is characterized by low bone mass and microarchitectural deterioration of bone tissue. The etiology and pathogenetic mechanisms of osteoporosis have not been clearly elucidated. Osteoporosis is linked to bone resorption by the activation of the osteoclastogenic process. The breakdown of homeostasis among pro- and antiosteoclastogenic cells causes unbalanced bone remodeling. The complex interactions among these cells in the bone microenvironment involve several mediators and proinflammatory pathways. Thus, we may consider the bone microenvironment as a complex system in which local and systemic immunity are regulated and we propose to consider it as an "immunological niche." The study of the "bone immunological niche" will permit a better understanding of the complex cell trafficking which regulates bone resorption and disease. The goal of a perfect therapy for osteoporosis would be to potentiate good cells and block the bad ones. In this scenario, additional factors may take part in helping or hindering the proosteoblastogenic factors. Several proosteoblastogenic and antiosteoclastogenic agents have already been identified and some have been developed and commercialized as biological therapies for osteoporosis. Targeting the cellular network of the "bone immunological niche" may represent a successful strategy to better understand and treat osteoporosis and its complications.
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Kuuliala K, Kuuliala A, Koivuniemi R, Oksanen S, Hämäläinen M, Moilanen E, Kautiainen H, Leirisalo-Repo M, Repo H. Constitutive STAT3 Phosphorylation in Circulating CD4+ T Lymphocytes Associates with Disease Activity and Treatment Response in Recent-Onset Rheumatoid Arthritis. PLoS One 2015; 10:e0137385. [PMID: 26353115 PMCID: PMC4564221 DOI: 10.1371/journal.pone.0137385] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 08/16/2015] [Indexed: 01/05/2023] Open
Abstract
The aim of the present study was to examine constitutive signal transducer and activator of transcription 3 (STAT3) phosphorylation in circulating leukocytes as a candidate biomarker in rheumatoid arthritis (RA). 25 patients with recent-onset, untreated RA provided samples for whole blood flow cytometric determination of intracellular STAT3 phosphorylation, expressed as relative fluorescence units. The occurrence of constitutive STAT3 phosphorylation was evaluated by determining proportion of STAT3-phosphorylated cells among different leukocyte subtypes. Plasma levels of interleukin (IL)-6, IL-17 and IL-21 were measured by immunoassay, radiographs of hands and feet were examined and disease activity score (DAS28) was determined. Biomarkers were restudied and treatment response (according to European League Against Rheumatism) was determined after 12 months of treatment with disease-modifying antirheumatic drugs. At baseline, constitutive phosphorylation of STAT3 occurred in CD4+ T cells of 14 (56%) patients, CD8+ T cells of 13 (52%) patients, in CD19+ B cells of 7 (28%) patients, and in CD14+ monocytes of 12 (48%) patients. STAT3 phosphorylation levels of CD4+ T cells associated with DAS28, and those of all leukocyte subtypes studied associated with erosive disease. The presence of constitutive STAT3 phosphorylation in CD4+ T lymphocytes, pSTAT3 fluorescence intensity of CD4+ and CD8+ T cells and C-reactive protein (CRP) levels at baseline associated with good treatment response. In conclusion, constitutive STAT3 phosphorylation in circulating CD4+ T cells is common in recent-onset untreated RA and associates with good treatment response in patients characterized by high disease activity and the presence of systemic inflammation.
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Affiliation(s)
- Krista Kuuliala
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Antti Kuuliala
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Riitta Koivuniemi
- Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Suvi Oksanen
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Mari Hämäläinen
- Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - Eeva Moilanen
- Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - Hannu Kautiainen
- Primary Health Care, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; General Practice, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; Unit of Primary Health Care, Kuopio University Hospital, Kuopio, Finland
| | - Marjatta Leirisalo-Repo
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Heikki Repo
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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Ahmad SF, Ansari MA, Zoheir KM, Bakheet SA, Korashy HM, Nadeem A, Ashour AE, Attia SM. Regulation of TNF-α and NF-κB activation through the JAK/STAT signaling pathway downstream of histamine 4 receptor in a rat model of LPS-induced joint inflammation. Immunobiology 2015; 220:889-98. [DOI: 10.1016/j.imbio.2015.01.008] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 01/18/2015] [Accepted: 01/22/2015] [Indexed: 11/28/2022]
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Aoyama A, Tonsho M, Ng CY, Lee S, Millington T, Nadazdin O, Wain JC, Cosimi AB, Sachs DH, Smith RN, Colvin RB, Kawai T, Madsen JC, Benichou G, Allan JS. Long-term lung transplantation in nonhuman primates. Am J Transplant 2015; 15:1415-20. [PMID: 25772308 PMCID: PMC4564890 DOI: 10.1111/ajt.13130] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 10/27/2014] [Accepted: 11/16/2014] [Indexed: 01/25/2023]
Abstract
Despite advances in surgical technique and clinical care, lung transplantation still remains a short-term solution for the treatment of end-stage lung disease. To date, there has been limited experience in experimental lung transplantation using nonhuman primate models. Therefore, we have endeavored to develop a long-term, nonhuman primate model of orthotopic lung transplantation for the ultimate purpose of designing protocols to induce tolerance of lung grafts. Here, we report our initial results in developing this model and our observation that the nonhuman primate lung is particularly prone to rejection. This propensity toward rejection may be a consequence of 1) upregulated nonspecific inflammation, and 2) a larger number of pre-existing alloreactive memory T cells, leading to augmented deleterious immune responses. Our data show that triple-drug immunosuppression mimicking clinical practice is not sufficient to prevent acute rejection in nonhuman primate lung transplantation. The addition of horse-derived anti-thymocyte globulin and a monoclonal antibody to the IL-6 receptor allowed six out of six lung recipients to be free of rejection for over 120 days.
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DNA methylation analysis of SOCS1, SOCS3, and LINE-1 in microdissected gingival tissue. Clin Oral Investig 2015; 19:2337-44. [DOI: 10.1007/s00784-015-1460-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 03/18/2015] [Indexed: 12/18/2022]
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Dietary extra-virgin olive oil prevents inflammatory response and cartilage matrix degradation in murine collagen-induced arthritis. Eur J Nutr 2015; 55:315-25. [DOI: 10.1007/s00394-015-0850-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 11/13/2014] [Indexed: 12/11/2022]
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26
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Ban JO, Kim DH, Lee HP, Hwang CJ, Shim JH, Kim DJ, Kim TM, Jeong HS, Nah SS, Chen H, Dong Z, Ham YW, Kim Y, Han SB, Hong JT. Anti-arthritis effects of (E)-2,4-bis(p-hydroxyphenyl)-2-butenal are mediated by inhibition of the STAT3 pathway. Br J Pharmacol 2014; 171:2900-12. [PMID: 24520814 DOI: 10.1111/bph.12619] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/16/2013] [Accepted: 01/28/2014] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND PURPOSE Products of Maillard reactions between aminoacids and reducing sugars are known to have anti-inflammatory properties. Here we have assessed the anti-arthritis effects of (E)-2,4-bis(p-hydroxyphenyl)-2-butenal and its possible mechanisms of action. EXPERIMENTAL APPROACH We used cultures of LPS-activated macrophages (RAW264.7 cells) and human synoviocytes from patients with rheumatoid arthritis for in vitro assays and the collagen-induced arthritis model in mice. NO generation, iNOS and COX2 expression, and NF-κB/IKK and STAT3 activities were measured in vitro and in joint tissues of arthritic mice, along with clinical scores and histopathological assessments. Binding of (E)-2,4-bis(p-hydroxyphenyl)-2-butenal to STAT3 was evaluated by a pull-down assay and its binding site was predicted using molecular docking studies with Autodock VINA. KEY RESULTS (E)-2,4-bis(p-hydroxyphenyl)-2-butenal (2.5-10 μg·mL(-1) ) inhibited LPS-inducedNO generation, iNOS and COX2 expression, and NF-κB/IKK and STAT3 activities in macrophage and human synoviocytes. This compound also suppressedcollagen-induced arthritic responses in mice by inhibiting expression of iNOS and COX2, and NF-κB/IKK and STAT3 activities; it also reduced bone destruction and fibrosis in joint tissues. A pull-down assay showed that (E)-2,4-bis(p-hydroxyphenyl)-2-butenal interfered with binding of ATP to STAT3. Docking studies suggested that (E)-2,4-bis(p-hydroxyphenyl)-2-butenal bound to the DNA-binding interface of STAT3 possibly inhibiting ATP binding to STAT3 in an allosteric manner. CONCLUSIONS AND IMPLICATIONS (E)-2,4-bis(p-hydroxyphenyl)-2-butenal exerted anti-inflammatory and anti-arthritic effects through inhibition of the NF-κB/STAT3 pathway by direct binding to STAT3. This compound could be a useful agent for the treatment of arthritic disease.
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Affiliation(s)
- Jung Ok Ban
- College of Pharmacy, Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Korea
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Anti-inflammatory and joint protective effects of extra-virgin olive-oil polyphenol extract in experimental arthritis. J Nutr Biochem 2014; 25:1275-81. [DOI: 10.1016/j.jnutbio.2014.07.006] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/30/2014] [Accepted: 07/11/2014] [Indexed: 12/29/2022]
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Hildebrand D, Bode KA, Rieß D, Cerny D, Waldhuber A, Römmler F, Strack J, Korten S, Orth JHC, Miethke T, Heeg K, Kubatzky KF. Granzyme A produces bioactive IL-1β through a nonapoptotic inflammasome-independent pathway. Cell Rep 2014; 9:910-7. [PMID: 25437548 DOI: 10.1016/j.celrep.2014.10.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 09/22/2014] [Accepted: 09/29/2014] [Indexed: 01/21/2023] Open
Abstract
Bacterial components are recognized by the immune system through activation of the inflammasome, eventually causing processing of the proinflammatory cytokine interleukin-1? (IL-1?), a pleiotropic cytokine and one of the most important mediators of inflammation, through the protease caspase-1. Synthesis of the precursor protein and processing into its bioactive form are tightly regulated, given that disturbed control of IL-1? release can cause severe autoinflammatory diseases or contribute to cancer development. We show that the bacterial Pasteurella multocida toxin (PMT) triggers Il1b gene transcription in macrophages independently of Toll-like receptor signaling through RhoA/Rho-kinase-mediated NF-?? activation. Furthermore, PMT mediates signal transducer and activator of transcription (STAT) protein-controlled granzyme A (a serine protease) expression in macrophages. The exocytosed granzyme A enters target cells and mediates IL-1? maturation independently of caspase-1 and without inducing cytotoxicity. These findings show that macrophages can induce an IL-1?-initiated immune response independently of inflammasome activity.
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Affiliation(s)
- Dagmar Hildebrand
- Department für Infektiologie, Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany
| | - Konrad A Bode
- Department für Infektiologie, Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany
| | - David Rieß
- Department für Infektiologie, Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany
| | - Daniela Cerny
- Department für Infektiologie, Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany
| | - Anna Waldhuber
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Trogerstraße 30, 81675 München, Germany
| | - Franziska Römmler
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Trogerstraße 30, 81675 München, Germany
| | - Julia Strack
- Institut für Experimentelle und Klinische Pharmakologie und Toxikologie, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Simone Korten
- Labor Lademannbogen MVZ GmbH, Lademannbogen 61-63, 22339 Hamburg, Germany
| | - Joachim H C Orth
- Institut für Experimentelle und Klinische Pharmakologie und Toxikologie, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Thomas Miethke
- Institut für Medizinische Mikrobiologie und Hygiene, Medizinische Fakultät Mannheim der Universität Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Klaus Heeg
- Department für Infektiologie, Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany
| | - Katharina F Kubatzky
- Department für Infektiologie, Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany.
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Wang K, Zhao L, Liu X, Hao Z, Zhou Y, Yang C, Li H. Differential co-expression analysis of rheumatoid arthritis with microarray data. Mol Med Rep 2014; 10:2421-6. [PMID: 25118911 DOI: 10.3892/mmr.2014.2491] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 04/25/2014] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to investigate the underlying molecular mechanisms of rheumatoid arthritis (RA) using microarray expression profiles from osteoarthritis and RA patients, to improve diagnosis and treatment strategies for the condition. The gene expression profile of GSE27390 was downloaded from Gene Expression Omnibus, including 19 samples from patients with RA (n=9) or osteoarthritis (n=10). Firstly, the differentially expressed genes (DEGs) were obtained with the thresholds of |logFC|>1.0 and P<0.05, using the t‑test method in LIMMA package. Then, differentially co-expressed genes (DCGs) and differentially co-expressed links (DCLs) were screened with q<0.25 by the differential coexpression analysis and differential regulation analysis of gene expression microarray data package. Secondly, pathway enrichment analysis for DCGs was performed by the Database for Annotation, Visualization and Integrated Discovery and the DCLs associated with RA were selected by comparing the obtained DCLs with known transcription factor (TF)-targets in the TRANSFAC database. Finally, the obtained TFs were mapped to the known TF-targets to construct the network using cytoscape software. A total of 1755 DEGs, 457 DCGs and 101988 DCLs were achieved and there were 20 TFs in the obtained six TF-target relations (STAT3-TNF, PBX1‑PLAU, SOCS3-STAT3, GATA1-ETS2, ETS1-ICAM4 and CEBPE‑GATA1) and 457 DCGs. A number of TF-target relations in the constructed network were not within DCLs when the TF and target gene were DCGs. The identified TFs may have an important role in the pathogenesis of RA and have the potential to be used as biomarkers for the development of novel diagnostic and therapeutic strategies for RA.
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Affiliation(s)
- Kunpeng Wang
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Liqiang Zhao
- Department of Orthopedics, The Harbin Fifth Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Xuefeng Liu
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Zhenyong Hao
- Department of Orthopedics, The Harbin Fifth Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Yong Zhou
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Chuandong Yang
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Hongqiang Li
- Department of Orthopedics, The Harbin Fifth Hospital, Harbin, Heilongjiang 150001, P.R. China
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Active components with inhibitory activities on IFN-γ/STAT1 and IL-6/STAT3 signaling pathways from Caulis Trachelospermi. Molecules 2014; 19:11560-71. [PMID: 25100250 PMCID: PMC6270818 DOI: 10.3390/molecules190811560] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 07/25/2014] [Accepted: 07/27/2014] [Indexed: 11/22/2022] Open
Abstract
Initial investigation for new active herbal extract with inhibiting activity on JAK/STAT signaling pathway revealed that the extract of Caulis Trachelospermi, which was separated by 80% alcohol extraction and subsequent HP-20 macroporous resin column chromatography, was founded to strongly inhibit IFN-γ-induced STAT1-responsive luciferase activity (IFN-γ/STAT1) with IC50 value of 2.43 μg/mL as well as inhibiting IL-6-induced STAT3-responsive luciferase activity (IL-6/STAT3) with IC50 value of 1.38 μg/mL. Subsequent study on its active components led to the isolation and identification of two new dibenzylbutyrolactone lignans named 4-demethyltraxillaside (1) and nortrachelogenin 4-O-β-d-glucopyranoside (2), together with six known compounds. The lignan compounds 1–4 together with other lignan compounds isolated in previous study were tested the activities on IFN-γ/STAT1 and IL-6/STAT3 pathways. The following result showed that the main components trachelogenin and arctigenin had corresponding activities on IFN-γ/STAT1 pathway with IC50 values of 3.14 μM and 9.46 μM as well as trachelogenin, arctigenin and matairesinol strongly inhibiting IL-6/STAT3 pathway with IC50 values of 3.63 μM, 6.47 μM and 2.92 μM, respectively.
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31
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Park JS, Kwok SK, Lim MA, Kim EK, Ryu JG, Kim SM, Oh HJ, Ju JH, Park SH, Kim HY, Cho ML. STA-21, a promising STAT-3 inhibitor that reciprocally regulates Th17 and Treg cells, inhibits osteoclastogenesis in mice and humans and alleviates autoimmune inflammation in an experimental model of rheumatoid arthritis. Arthritis Rheumatol 2014; 66:918-29. [PMID: 24757144 DOI: 10.1002/art.38305] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 11/26/2013] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To investigate the impact of STA-21, a promising STAT-3 inhibitor, on the development and progression of inflammatory arthritis and to determine the possible mechanisms by which STA-21 has antiarthritic effects in interleukin-1 receptor antagonist-knockout (IL-1Ra-KO) mice, an animal model of rheumatoid arthritis (RA). METHODS IL-1Ra-KO mice were treated with intraperitoneal injections of STA-21 (0.5 mg/kg) or vehicle 3 times per week for 3 weeks. The mouse joints were assessed for clinical and histologic features of inflammatory arthritis. CD4+CD25+FoxP3+ Treg cells and CD4+IL-17+ cells were defined. Human peripheral blood mononuclear cell-derived monocytes or mouse bone marrow-derived monocyte/macrophage (BMM) cells were cultured in the presence of macrophage colony-stimulating factor alone or together with RANKL and various concentrations of STA-21, followed by staining of the cells for tartrate-resistant acid phosphatase activity to determine osteoclast formation. RESULTS STA-21 suppressed inflammatory arthritis in IL-1Ra-KO mice. The proportion of Th17 cells was decreased and the proportion of Treg cells expressing FoxP3 was markedly increased in the spleens of STA-21-treated mice. Adoptive transfer of CD4+CD25+ T cells obtained from STA-21-treated IL-1Ra-KO mice markedly suppressed inflammatory arthritis. In vitro treatment with STA-21 induced the expression of FoxP3 and repressed IL-17 expression in both mouse and human CD4+ T cells. Moreover, STA-21 prevented both mouse BMM cells and human monocytes from differentiating into osteoclasts in vitro. CONCLUSION STA-21 improved the clinical course of arthritis in IL-1Ra-KO mice. It increased not only the number of Treg cells but also the function of the Treg cells. It also suppressed Th17 cells and osteoclast formation. These data suggest that STA-21 might be an effective treatment for patients with RA.
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Affiliation(s)
- Jin-Sil Park
- Catholic University of Korea, Seoul, South Korea
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Gyurkovska V, Dimitrova P, Ivanovska N. Tyrosine Kinase Inhibitor Tyrphostin AG490 Inhibits Osteoclast Differentiation in Collagenase-Induced Osteoarthritis. EUR J INFLAMM 2014. [DOI: 10.1177/1721727x1401200212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The janus kinase (JAK)-signal transducer and activator of transcription (STAT) cascade plays a principal role in the signaling of a vast array of cytokines and growth factors which stimulates diverse cellular functions and immune responses. Osteoarthritis (OA) is the most common joint disease in the adult population. The present study was designed to evaluate the effects of tyrosine kinase inhibitor, tyrphostin AG490 in a mouse model of collagenase-induced osteoarthritis (CIOA). CIOA was provoked by two intraarticular (i.a.) injections of collagenase in mice and intraperitoneally (i.p.) treated with AG490 at a dose of 5 mg/kg at days 0, 5 and 10 and at a dose of 8 mg/kg at day 18. The administration of AG490 in CIOA mice inhibited osteoclast generation in bone and the loss of glycosaminoglycans and proteoglycans in cartilage. Tyrphostin decreased the levels of IFN-γ, IL1, IL-6 and IL-17 in the synovial fluid (SF) dependant on the time post AG490 administration. Limited numbers of CD11b positive Ly6G neutrophils in blood and SF along with a decrease of F4/80 positive cells in synovial fluid (SF) were observed in tyrphostin AG490-treated arthritic mice. AG490 inhibited M-CSF+RANKL-induced cytokine production by bone marrow (BM) cells and the differentiation of BM cells in vitro. Because of the findings presented, we argue that tyrphostin AG490 may hold promising therapeutic potential against important clinical conditions such as osteoarthritis (OA).
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Affiliation(s)
- V. Gyurkovska
- Department of Immunology, Institute of Microbiology, Sofia, Bulgaria
| | - P. Dimitrova
- Department of Immunology, Institute of Microbiology, Sofia, Bulgaria
| | - N. Ivanovska
- Department of Immunology, Institute of Microbiology, Sofia, Bulgaria
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Liang Y, Xu WD, Peng H, Pan HF, Ye DQ. SOCS signaling in autoimmune diseases: molecular mechanisms and therapeutic implications. Eur J Immunol 2014; 44:1265-75. [PMID: 24595859 DOI: 10.1002/eji.201344369] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 02/08/2014] [Accepted: 02/25/2014] [Indexed: 11/08/2022]
Abstract
Suppressor of cytokine signaling (SOCS) proteins are mainly induced by various cytokines and have been described as classical inhibitors of cytokine signaling. SOCS signaling is involved in the regulation of immune cells, and recent findings suggest that SOCS proteins, especially SOCS1 and SOCS3, are often dysregulated in a wide variety of autoimmune diseases, including systemic lupus erythematosus, rheumatoid arthritis, type 1 diabetes, psoriasis, and multiple sclerosis. Recent studies suggest that SOCS signaling could be therapeutically targeted in various autoimmune diseases. In this review, we discuss recent studies on the role of SOCS proteins in the development and pathogenesis of autoimmune diseases, as well as their clinical implications.
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Affiliation(s)
- Yan Liang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, People's Republic of China
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Strehl C, Fangradt M, Fearon U, Gaber T, Buttgereit F, Veale DJ. Hypoxia: how does the monocyte-macrophage system respond to changes in oxygen availability? J Leukoc Biol 2013; 95:233-41. [PMID: 24168857 DOI: 10.1189/jlb.1212627] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Hypoxia is an important feature of inflamed tissue, such as the RA joint. Activated monocytes/macrophages and endothelial cells play a pivotal role in the pathogenesis of RA, implicated in the mechanism of inflammation and erosion. During development, myeloid progenitor cells sequentially give rise to monoblasts, promonocytes, and monocytes that are released from the bone marrow into the bloodstream. After extravasation, monocytes differentiate into long-lived, tissue-specific macrophages or DCs. The effect of different oxygen concentrations experienced by these cells during maturation represents a novel aspect of this developmental process. In inflamed joint tissue, the microvascular architecture is highly dysregulated; thus, efficiency of oxygen supply to the synovium is poor. Therefore, invading cells must adapt instantaneously to changes in the oxygen level of the microenvironment. Angiogenesis is an early event in the inflammatory joint, which is important in enabling activated monocytes to enter via endothelial cells by active recruitment to expand the synovium into a "pannus", resulting in cartilage degradation and bone destruction. The increased metabolic turnover of the expanding synovial pannus outpaces the dysfunctional vascular supply, resulting in hypoxia. The abnormal bioenergetics of the microenvironment further promotes synovial cell invasiveness. In RA, joint hypoxia represents a potential threat to cell function and survival. Notably, oxygen availability is a crucial parameter in the cellular energy metabolism, itself an important factor in determining the function of immune cells.
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Affiliation(s)
- Cindy Strehl
- 2.Charité-Universitätsmedizin Berlin, Campus Mitte, Charitéplatz 1, 10117 Berlin, Germany.
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Guimarães MR, Leite FRM, Spolidorio LC, Kirkwood KL, Rossa C. Curcumin abrogates LPS-induced pro-inflammatory cytokines in RAW 264.7 macrophages. Evidence for novel mechanisms involving SOCS-1, -3 and p38 MAPK. Arch Oral Biol 2013; 58:1309-17. [PMID: 24011306 DOI: 10.1016/j.archoralbio.2013.07.005] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 07/16/2013] [Accepted: 07/18/2013] [Indexed: 10/26/2022]
Abstract
Curcumin is the active compound in the extract of Curcuma longa rhizomes with anti-inflammatory properties mediated by inhibition of intracellular signalling. SOCS and MAPKinases are involved in the signalling events controlling the expression of IL-6, TNF-α and PGE2, which have important roles on chronic inflammatory diseases. The aim was to assess if these pathways are involved in curcumin-mediated effects on LPS-induced expression of these cytokines in macrophages. RAW 264.7 murine macrophages were stimulated with Escherichia coli LPS in the presence and absence of non-cytotoxic concentrations of curcumin. Curcumin potently inhibited LPS-induced expression of IL-6, TNF-α and COX-2 mRNA and prevented LPS-induced inhibition of SOCS-1 and -3 expression and the inhibition of the activation of p38 MAPKinase by modulation of its nuclear translocation. In conclusion, curcumin potently inhibits expression of LPS-induced inflammatory cytokines in macrophages via mechanisms that involve modulation of expression and activity of SOCS-1 and SOCS-3 and of p38 MAPK.
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Affiliation(s)
- Morgana Rodrigues Guimarães
- Department of Diagnosis and Surgery, Faculdade de Odontologia de Araraquara, Univ Estadual Paulista (UNESP), Araraquara, SP, Brazil
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Xu D, Staedman A, Zhang L. CD20 antibody primes B lymphocytes for type I interferon production. PLoS One 2013; 8:e67900. [PMID: 23874371 PMCID: PMC3707517 DOI: 10.1371/journal.pone.0067900] [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: 04/24/2013] [Accepted: 05/22/2013] [Indexed: 12/31/2022] Open
Abstract
CD20 is a B cell surface marker that is expressed in various stages in B
lymphocytes and certain lymphomas. Clinical administration of CD20 antibody,
such as rituximab, is used widely to treat human B-cell lymphomas and other
diseases. However, CD20 antibody failed to treat systemic lupus erythematosus
(SLE or lupus). The reason for the failure is currently unknown. Type I
interferons (IFN) are a major component for the host innate immunity, and a key
pathogenic factor in lupus. We found that CD20 antibody potentiated human B
cells for its production of IFNs in vitro. This function was
specific to CD20-expressing cells and the potentiation function seems to be
instant. In addition, ectopic expression of CD20 in non-B-lymphocytes increased
the IFN promoter reporter activities. Because IFNs are a key pathogenic factor
in lupus, our data suggest that, in the presence of virus infection, the
CD20-antibody-mediated enhancement of IFN production might be related to its
failure in lupus treatments. This work may provide new insights for CD20-Ab
therapeutic applications.
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Affiliation(s)
- Dongsheng Xu
- School of Biological Sciences, University of Nebraska, Lincoln, Nebraska,
United States of America
| | - Andrew Staedman
- Nebraska Center for Virology, University of Nebraska, Lincoln, Nebraska,
United States of America
| | - Luwen Zhang
- School of Biological Sciences, University of Nebraska, Lincoln, Nebraska,
United States of America
- Nebraska Center for Virology, University of Nebraska, Lincoln, Nebraska,
United States of America
- * E-mail:
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YAO J, HU L, SONG XG, ZHENG BZ, ZHOU F, ZHANG C. Influence of moxibustion at “Shènshù” ( BL 23) and “Zúsānl□” ( ST 36) on Ras-MAPK signal pathways in synovial tissues of rats with experimental rheumatoid arthritis. WORLD JOURNAL OF ACUPUNCTURE-MOXIBUSTION 2013. [DOI: 10.1016/s1003-5257(13)60040-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ren DY, Xu T, Li R, Huang C, Huang Y, Li RQ, Li HY, Li J. 5,7,3′-Triacetyl Hesperetin Suppresses Adjuvant-Induced Arthritis in Rats through Modulating JAK2/STAT3 Pathway. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2013; 41:601-14. [DOI: 10.1142/s0192415x13500420] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This work was designed to identify the effect of 5,7,3′-triacetyl hesperetin (TAHP) on rat adjuvant arthritis (AA) and further clarify the possible role of TAHP on modulating Janus kinase signal transducers and activators (JAK/STAT in this process. Freund's complete adjuvant was used to induce AA in rats. TAHP (33, 66, 132 mg/kg) was administered intragastrically. Secondary paw swelling, polyarthritis index, index of immune organs and histopathological assessment were used to evaluate the effects of TAHP on AA in rats. IL-6 in serum and in synovial tissues was examined with ELISA and RT-PCR. In addition, JAK2/STAT3 pathway-related key molecules mRNA expression in synovial tissues of AA rats were detected by RT-PCR and western blot respectively. It was found that TAHP (66, 132 mg/kg) could significantly inhibit secondary paw swelling, restore the index of immune organs and reduce polyarthritis index. Results of histopathological assessment showed that TAHP clearly ameliorated the pathological changes in AA rats. TAHP could downregulate the level of IL-6 in serum and in synovial tissues of AA rats. Besides, treatment with TAHP could decrease mRNA expressions of STAT3 and JAK2, as well as the ratio of p-JAK2/JAK2 protein and p-STAT3/STAT3 protein from synovial tissues. Thus, the paper demonstrated that TAHP had a therapeutic effect on AA in rats and the mechanisms were partly associated with modulating proinflammatory cytokine IL-6 production in serum and in synovial tissues and inhibiting excessive activation of JAK2/STAT3 signaling pathway which might play a crucial role in the pathogenesis of AA.
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Affiliation(s)
- Dan Yang Ren
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Key Laboratory of Bioactivity on Natural Products, Anhui 230032, P. R. China
- Pharmaceutical Preparation Section, Children's Hospital of Kunming Medical University, Kunming, Yunnan 650000, P. R. China
| | - Tao Xu
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Key Laboratory of Bioactivity on Natural Products, Anhui 230032, P. R. China
| | - Rong Li
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Key Laboratory of Bioactivity on Natural Products, Anhui 230032, P. R. China
| | - Cheng Huang
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Key Laboratory of Bioactivity on Natural Products, Anhui 230032, P. R. China
| | - Yan Huang
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Key Laboratory of Bioactivity on Natural Products, Anhui 230032, P. R. China
| | - Ren Qiu Li
- Pharmaceutical Preparation Section, Children's Hospital of Kunming Medical University, Kunming, Yunnan 650000, P. R. China
| | - Hui Ying Li
- Pharmaceutical Preparation Section, Children's Hospital of Kunming Medical University, Kunming, Yunnan 650000, P. R. China
| | - Jun Li
- School of Pharmacy, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Anhui Key Laboratory of Bioactivity of Natural Products, Anhui Medical University, Hefei, Anhui 230032, P. R. China
- Key Laboratory of Bioactivity on Natural Products, Anhui 230032, P. R. China
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Lee SY, Kwok SK, Son HJ, Ryu JG, Kim EK, Oh HJ, Cho ML, Ju JH, Park SH, Kim HY. IL-17-mediated Bcl-2 expression regulates survival of fibroblast-like synoviocytes in rheumatoid arthritis through STAT3 activation. Arthritis Res Ther 2013; 15:R31. [PMID: 23421940 PMCID: PMC3672783 DOI: 10.1186/ar4179] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 01/29/2013] [Indexed: 12/14/2022] Open
Abstract
Introduction Fibroblast-like synoviocytes (FLSs) are a major cell population of the pannus that invades adjacent cartilage and bone in rheumatoid arthritis (RA). The study was undertaken to determine the effect of interleukin-17 (IL-17) on the survival and/or proliferation of FLSs from RA patients and to investigate whether signal tranducer and activator of transcription 3 (STAT3) is implicated in this process. Methods Bcl-2 and Bax expression in FLSs was determined using the real-time PCR and western blot analysis. The expression of Bcl-2 and phosphoSTAT3 in synovial tissues was investigated by confocal microscope. Apoptosis of FLSs was detected by Annexin V/propidium iodide staining and/or phase contrast microscopy. The proliferation of FLSs was determined by CCK-8 ELISA assay. Results The pro-apoptotic Bax is decreased and anti-apoptotic Bcl-2 is increased in FLSs from RA patients compared with those from patients with osteoarthritis (OA). IL-17 upregulated the expression of Bcl-2 in FLSs from RA patients, but not in FLSs from OA patients. STAT3 was found to mediate IL-17-induced Bcl-2 upregulation in FLSs from RA patients. Additionally, IL-17 promoted the survival and proliferation of FLSs from RA patients. Most importantly, treatment with STAT3 inhibitor reversed the protective effect of IL-17 on FLSs apoptosis induced by sodium nitroprusside (SNP). Conclusions Our data demonstrate that STAT3 is critical in IL-17-induced survival of FLS from RA patients. Therefore, therapeutic strategies that target the IL-17/STAT3 pathway might be strong candidates for RA treatment modalities.
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Choy EH, Kavanaugh AF, Jones SA. The problem of choice: current biologic agents and future prospects in RA. Nat Rev Rheumatol 2013; 9:154-63. [DOI: 10.1038/nrrheum.2013.8] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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van de Loo FAJ, Veenbergen S, van den Brand B, Bennink MB, Blaney-Davidson E, Arntz OJ, van Beuningen HM, van der Kraan PM, van den Berg WB. Enhanced suppressor of cytokine signaling 3 in arthritic cartilage dysregulates human chondrocyte function. ACTA ACUST UNITED AC 2013; 64:3313-23. [PMID: 22576756 DOI: 10.1002/art.34529] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To determine the expression of suppressor of cytokine signaling 3 (SOCS-3) in human articular chondrocytes and its functional consequences. METHODS Chondrocytes were isolated from the cartilage of patients with osteoarthritis (OA), patients with rheumatoid arthritis (RA), and trauma patients and from the healthy cartilage of patients with a femoral neck fracture. The human chondrocyte cell line G6 and primary bovine chondrocytes were used in validation experiments. SOCS-3 messenger RNA (mRNA) expression was measured by quantitative polymerase chain reaction, and SOCS-3 protein levels were determined by Western blotting and immunohistochemical analysis. To ascertain the role of SOCS-3 in the chondrocyte response to interleukin-1β (IL-1β) or lipopolysaccharide (LPS), the expression of SOCS3 was either reduced by small interfering RNA or enhanced by viral transduction. RESULTS The expression of SOCS-3 mRNA (but not that of SOCS-1 mRNA) was significantly enhanced in chondrocytes obtained from OA cartilage (mean ± SD ΔC(t) 3.4 ± 1.0) and RA cartilage (ΔC(t) 3.4 ± 1.4) compared with cartilage obtained from patients with femoral neck fracture (ΔC(t) 5.3 ± 1.2). The expression of SOCS3 correlated significantly with that of other genes known to be expressed in arthritic chondrocytes, such as MMP13 (r = 0.743), ADAMTS4 (r = 0.779), and ADAMTS5 (r = 0.647), and an inverse relationship was observed with COL2A1 (r = -0.561). Up-regulation of SOCS-3 by IL-1 in G6 chondrocytes and its spontaneous expression in OA chondrocytes were reduced by mithramycin, a specific inhibitor of transcription factor Sp-1. Overexpression of SOCS-3 in bovine chondrocytes reduced IL-1- and LPS-induced nitric oxide production and insulin-like growth factor 1-induced proteoglycan synthesis. Interestingly, a similar impairment of function was observed in OA chondrocytes, which was partially restored by SOCS-3 gene knockdown. CONCLUSION This study demonstrated that both SOCS-3 mRNA and SOCS-3 protein are expressed in human arthritic chondrocytes and affect cellular responses involved in cartilage pathology.
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Therapeutic effect of 7, 3′-dimethoxy hesperetin on adjuvant arthritis in rats through inhibiting JAK2-STAT3 signal pathway. Int Immunopharmacol 2012; 14:157-63. [DOI: 10.1016/j.intimp.2012.07.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 06/22/2012] [Accepted: 07/01/2012] [Indexed: 12/18/2022]
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Dimitrova P, Ivanovska N, Belenska L, Milanova V, Schwaeble W, Stover C. Abrogated RANKL expression in properdin-deficient mice is associated with better outcome from collagen-antibody-induced arthritis. Arthritis Res Ther 2012; 14:R173. [PMID: 22830570 PMCID: PMC3580567 DOI: 10.1186/ar3926] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Accepted: 07/25/2012] [Indexed: 02/07/2023] Open
Abstract
Introduction Properdin amplifies the alternative pathway of complement activation. In the present study, we evaluated its role in the development of collagen antibody-induced arthritis (CAIA). Methods Arthritis was induced by intraperitoneal injection of a collagen antibody cocktail into properdin-deficient (KO) and wild-type (WT) C57BL/6 mice. Symptoms of disease were evaluated daily. The degree of joint damage was assessed histologically and with immunostaining for bone-resorption markers. Phenotypes of cell populations, their receptor expression, and intracellular cytokine production were determined with flow cytometry. Osteoclast differentiation of bone marrow (BM) precursors was evaluated by staining for tartrate-resistant acid phosphatase (TRAP). Results Properdin-deficient mice developed less severe CAIA than did WT mice. They showed significantly improved clinical scores and downregulated expression of bone-resorption markers in the joints at day 10 of disease. The frequencies of Ly6G+CD11b+ cells were fewer in BM, blood, and synovial fluid (SF) of KO than of WT CAIA mice. The receptor activator of nuclear factor κB ligand (RANKL) was downregulated on arthritic KO neutrophils from BM and the periphery. Decreased C5a amounts in KO SF contributed to lower frequencies of CD5aR+-bearing neutrophils. In blood, surface C5aR was detected on KO Ly6G+ cells as a result of low receptor engagement. Circulating CD4+ T cells had an altered ability to produce interleukin (IL)-17 and interferon (IFN)-γ and to express RANKL. In KO CAIA mice, decreased frequencies of CD4+ T cells in the spleen were related to low CD86 expression on Ly6GhighCD11b+ cells. Arthritic KO T cells spontaneously secreted IFN-γ but not IL-17 and IL-6, and responded to restimulation with less-vigorous cytokine production in comparison to WT cells. Fewer TRAP-positive mature osteoclasts were found in KO BM cell cultures. Conclusions Our data show that the active involvement of properdin in arthritis is related to an increased proinflammatory cytokine production and RANKL expression on immune cells and to a stimulation of the RANKL-dependent osteoclast differentiation.
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Presentations at the annual meeting of the Finnish Society for Rheumatology, Turku, 26–27 January 2012. Scand J Rheumatol 2012. [DOI: 10.3109/03009742.2012.671600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Expression profile of immune response genes during acute myopathy induced by chikungunya virus in a mouse model. Microbes Infect 2012; 14:457-69. [DOI: 10.1016/j.micinf.2011.12.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 11/01/2011] [Accepted: 12/18/2011] [Indexed: 11/24/2022]
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Jones SA, Scheller J, Rose-John S. Therapeutic strategies for the clinical blockade of IL-6/gp130 signaling. J Clin Invest 2011; 121:3375-83. [PMID: 21881215 PMCID: PMC3163962 DOI: 10.1172/jci57158] [Citation(s) in RCA: 529] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The successful treatment of certain autoimmune conditions with the humanized anti-IL-6 receptor (IL-6R) antibody tocilizumab has emphasized the clinical importance of cytokines that signal through the β-receptor subunit glycoprotein 130 (gp130). In this Review, we explore how gp130 signaling controls disease progression and examine why IL-6 has a special role among these cytokines as an inflammatory regulator. Attention will be given to the role of the soluble IL-6R, and we will provide a perspective into the clinical blockade of IL-6 activity in autoimmunity, inflammation, and cancer.
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Affiliation(s)
- Simon A. Jones
- Department of Infection, Immunity and Biochemistry, The School of Medicine, Cardiff University, Cardiff, United Kingdom.
Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.
Institute of Biochemistry, Christian-Albrechts-University, Kiel, Germany
| | - Jürgen Scheller
- Department of Infection, Immunity and Biochemistry, The School of Medicine, Cardiff University, Cardiff, United Kingdom.
Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.
Institute of Biochemistry, Christian-Albrechts-University, Kiel, Germany
| | - Stefan Rose-John
- Department of Infection, Immunity and Biochemistry, The School of Medicine, Cardiff University, Cardiff, United Kingdom.
Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.
Institute of Biochemistry, Christian-Albrechts-University, Kiel, Germany
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Takahashi T, Muneta T, Tsuji K, Sekiya I. BMP-7 inhibits cartilage degeneration through suppression of inflammation in rat zymosan-induced arthritis. Cell Tissue Res 2011; 344:321-32. [PMID: 21484415 DOI: 10.1007/s00441-011-1154-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 02/25/2011] [Indexed: 10/18/2022]
Abstract
Bone morphogenetic protein-7 (BMP-7) regulates cartilage metabolism and promotes matrix synthesis. However, the effect of BMP-7 on inflammatory arthritis remains unknown. We investigated the effect and mechanism of exogenous BMP-7 on cartilage and synovium in vivo in rat zymosan-induced arthritis. Zymosan was injected into the left knees of Wistar rats. Phosphate-buffered saline or BMP-7 at 10, 100, or 1000 ng per joint was injected into the left knee every 2 days. Normal joints acted as normal controls. The knee joints were analyzed histologically and immunohistologically at 14 days. Joint swelling was evaluated by measuring the transverse diameter of the knee joints. Synovial lysates were collected, and the concentrations of interleukin-1β (IL-1β), IL-6, and IL-10 were measured by enzyme-linked immunosorbent assay. Intra-articular injection of zymosan resulted in acute inflammation and was followed by cartilage degeneration. Local administrations of BMP-7 inhibited this loss of cartilage matrix in a dose-dependent manner. Immunohistochemical analysis demonstrated enhanced type II collagen levels in cartilage and enhanced BMP-7 levels in cartilage and synovium after exogenous BMP-7 treatment. Joint swelling and cell infiltration into synovium were significantly reduced by BMP-7 injections. Administration of BMP-7 decreased IL-1β production significantly and increased IL-10 production in the synovium. Thus, intra-articular injections of BMP-7 had a protective effect on cartilage degeneration in the inflammatory arthritis model by enhancing levels of BMP-7 in cartilage and suppressing the production of IL-1β in synovium.
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Affiliation(s)
- Toru Takahashi
- Section of Orthopedic Surgery, Division of Bio-Matrix, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
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Dectin-1 and NOD2 mediate cathepsin activation in zymosan-induced arthritis in mice. Inflamm Res 2011; 60:705-14. [PMID: 21424514 DOI: 10.1007/s00011-011-0324-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 02/23/2011] [Accepted: 02/28/2011] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVE Activation of pattern recognition receptors (PRR) may contribute to arthritis. Here, we elucidated the role of NOD2, a genetic cause of inflammatory arthritis, and several other PRR in a murine model of inflammatory arthritis. METHODS The roles of CR3, TLR2, MyD88, NOD1, NOD2, Dectin-1 and Dectin-2 were tested in vivo in arthritis elicited by intra-articular injections of zymosan, the fungal cell wall components curdlan, laminarin and mannan, and the bacterial cell wall peptidoglycan. RESULTS Dectin-1, and to a lesser extent Dectin-2, contributed to arthritis. TLR2, MyD88 and CR3 played non-essential roles. Observations based on injection of curdlan, laminarin or mannan supported the dominant role of the Dectin-1 pathway in the joint. We demonstrated differential roles for NOD1 and NOD2 and identified NOD2 as a novel and essential mediator of zymosan-induced arthritis. CONCLUSIONS Together, Dectin-1 and NOD2 are critical, sentinel receptors in the arthritogenic effects of zymosan. Our data identify a novel role for NOD2 during inflammatory responses within joints.
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Singh R, Akhtar N, Haqqi TM. Green tea polyphenol epigallocatechin-3-gallate: inflammation and arthritis. [corrected]. Life Sci 2010; 86:907-18. [PMID: 20462508 PMCID: PMC3146294 DOI: 10.1016/j.lfs.2010.04.013] [Citation(s) in RCA: 134] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 04/15/2010] [Accepted: 04/29/2010] [Indexed: 12/18/2022]
Abstract
A number of factors including inflammation and oxidative stress are believed to play a role in the development of chronic joint diseases. Green tea has become a popular drink and is consumed throughout the world. Extracts of green tea and polyphenols present therein have been shown to inhibit the inflammatory responses in vitro in different cell types and the development of arthritis in animal model studies. There is considerable evidence that (-)-epigallocatechin-3-gallate (EGCG), the predominant green tea polyphenol which mimic its effects, inhibits enzyme activities and signal transduction pathways that play important roles in inflammation and joint destruction in arthritis. After oral consumption EGCG become bioavailable and proteomic studies suggest that EGCG may directly interact with a large set of protein targets and alter the physiological response of the cells. Taken together these and other studies identify and support the use of EGCG as a possible chemopreventive agent with a potential to inhibit the development of arthritis. Here we review the biological effects of EGCG in an attempt to understand its pivotal molecular targets that directly affect the inflammation and joint destruction process for prevention and/or for the development of new therapeutics for arthritis in humans.
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Affiliation(s)
- Rashmi Singh
- Department of Zoology, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, India
| | - Nahid Akhtar
- Department of Medicine/Rheumatology, Metrohealth Medical Center, Case Western Reserve University, 2500 Metrohealth Drive, Cleveland, OH 44109
| | - Tariq M. Haqqi
- Department of Medicine/Rheumatology, Metrohealth Medical Center, Case Western Reserve University, 2500 Metrohealth Drive, Cleveland, OH 44109
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Dimitrova P, Ivanovska N, Schwaeble W, Gyurkovska V, Stover C. The role of properdin in murine zymosan-induced arthritis. Mol Immunol 2010; 47:1458-66. [PMID: 20226532 DOI: 10.1016/j.molimm.2010.02.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Revised: 02/11/2010] [Accepted: 02/14/2010] [Indexed: 10/19/2022]
Abstract
Using properdin-deficient and wild-type mice, we have investigated the role of properdin in development and progression of zymosan-induced arthritis. At the initial phase of local, zymosan-induced inflammation, properdin-deficient and wild-type mice showed bone erosion, proteoglycan loss and cell infiltration. Compared to wild-type, properdin-deficient mice had reduced C5a and IL-6 but similar synovial TNF-alpha and sRANKL levels. Both groups showed a systemic immune response. Elevated IFN-gamma production and STAT1 signaling in splenocytes and a shift to Th1 response in popliteal lymph nodes were observed in properdin-deficient mice. Properdin-deficient mice had significantly less circulating zymosan-specific IgG antibodies than wild-type. In the chronic phase, the lack of properdin resulted in significant proteoglycan loss in the joints and lower cartilageneous STAT1 expression. The level of synovial C5a on day 30 was comparable in both groups, but C5aR staining was more apparent in the joints of properdin-deficient mice. Our data show that properdin is an important player in processes involved in inflammatory joint degradation.
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Affiliation(s)
- Petya Dimitrova
- Department of Immunology, Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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