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Luo Y, Hou X, Xi A, Luo M, Wang K, Xu Z. Tripterygium wilfordii Hook F combination therapy with methotrexate for rheumatoid arthritis: An updated meta-analysis. JOURNAL OF ETHNOPHARMACOLOGY 2023; 307:116211. [PMID: 36706936 DOI: 10.1016/j.jep.2023.116211] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 10/24/2022] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rheumatoid arthritis (RA) is a chronic, systemic inflammatory arthropathy. Tripterygium wilfordii Hook F (TwHF) is common herbal medicine for the treatment of RA in China. However, many important issues, such as efficacy, safety and optimal doses of the combination therapy of TwHF and Methotrexate (MTX) for RA remain to be evaluated. AIMS OF THE STUDY This study aims to evaluate the efficacy and safety of combination therapy of TwHF and MTX for RA by meta-analysis of randomized clinical trials (RCTs). MATERIAL AND METHODS Relevant literature was searched from English (PubMed, Web of Science, EMBASE, and Cochrane library) and Chinese databases (WanFang, VIP, CNKI) until December 2021. Response rates and rates of adverse events (AEs) were independently extracted and analyzed. RESULTS Fourteen randomized controlled trials (RCTs) were included with a total of 1446 patients, which included eight new RCTs with a total of 803 new patients when compared with the previous meta-analysis (Wang et al., 2017). Compared to MTX monotherapy, TwHF + MTX was revealed a higher effective rate (RR = 1.15, 95% CI: 1.10, 1.21), partial remission rate (RR = 1.27, 95% CI: 1.15, 1.40) and remission rate (RR = 1.31, 95% CI: 1.11, 1.55). The addition of TwHF benefited the clinical symptoms (such as tender joint count) and most laboratory indexes (such as the tumor necrosis factor-α). According to the subgroup analyses, the efficacy of the TwHF + MTX seems to be positively associated with the dose of TwHF (10 mg/d vs 30-60 mg/d), negatively related to the dose of MTX (∼10 mg/w vs ∼15 mg/w) and methodological risk of bias of included RCTs, and unrelated to the duration of therapy (12-week vs 24-week). For safety, the addition of TwHF did not increase the risk of most AEs and even reduced the risk of infection and liver AEs. CONCLUSION Combining TwHF with MTX may be a superior strategy in the treatment of RA compared with MTX monotherapy. The optimal combination of TwHF + MTX therapy might be TwHF at 30-60 mg/d with MTX (∼10 mg/w). Further high-quality double-blind RCTs may be able to change the conclusions of our study, which are still warranted.
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Affiliation(s)
- Yijun Luo
- Laboratory of Rheumatology & Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Xiaoxiao Hou
- Laboratory of Rheumatology & Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Anran Xi
- Laboratory of Rheumatology & Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Mengxian Luo
- Laboratory of Rheumatology & Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Keer Wang
- Laboratory of Rheumatology & Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Zhenghao Xu
- Laboratory of Rheumatology & Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
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Floudas A, Smith CM, Tynan O, Neto N, Krishna V, Wade SM, Hanlon M, Cunningham C, Marzaioli V, Canavan M, Fletcher JM, Mullan RH, Cole S, Hao LY, Monaghan MG, Nagpal S, Veale DJ, Fearon U. Distinct stromal and immune cell interactions shape the pathogenesis of rheumatoid and psoriatic arthritis. Ann Rheum Dis 2022; 81:1224-1242. [PMID: 35701153 DOI: 10.1136/annrheumdis-2021-221761] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 05/12/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Immune and stromal cell communication is central in the pathogenesis of rheumatoid arthritis (RA) and psoriatic arthritis (PsA), however, the nature of these interactions in the synovial pathology of the two pathotypes can differ. Identifying immune-stromal cell crosstalk at the site of inflammation in RA and PsA is challenging. This study creates the first global transcriptomic analysis of the RA and PsA inflamed joint and investigates immune-stromal cell interactions in the pathogenesis of synovial inflammation. METHODS Single cell transcriptomic profiling of 178 000 synovial tissue cells from five patients with PsA and four patients with RA, importantly, without prior sorting of immune and stromal cells. This approach enabled the transcriptomic analysis of the intact synovial tissue and identification of immune and stromal cell interactions. State of the art data integration and annotation techniques identified and characterised 18 stromal and 14 immune cell clusters. RESULTS Global transcriptomic analysis of synovial cell subsets identifies actively proliferating synovial T cells and indicates that due to differential λ and κ immunoglobulin light chain usage, synovial plasma cells are potentially not derived from the local memory B cell pool. Importantly, we report distinct fibroblast and endothelial cell transcriptomes indicating abundant subpopulations in RA and PsA characterised by differential transcription factor usage. Using receptor-ligand interactions and downstream target characterisation, we identify RA-specific synovial T cell-derived transforming growth factor (TGF)-β and macrophage interleukin (IL)-1β synergy in driving the transcriptional profile of FAPα+THY1+ invasive synovial fibroblasts, expanded in RA compared with PsA. In vitro characterisation of patient with RA synovial fibroblasts showed metabolic switch to glycolysis, increased adhesion intercellular adhesion molecules 1 expression and IL-6 secretion in response to combined TGF-β and IL-1β treatment. Disrupting specific immune and stromal cell interactions offers novel opportunities for targeted therapeutic intervention in RA and PsA.
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Affiliation(s)
- Achilleas Floudas
- Molecular Rheumatology, Clinical Medicine, Trinity Biomedical Science Institute, Dublin, Ireland
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
| | - Conor M Smith
- Translational Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Orla Tynan
- Molecular Rheumatology, Clinical Medicine, Trinity Biomedical Science Institute, Dublin, Ireland
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
| | - Nuno Neto
- Department of Mechanical and Manufacturing Engineering, Trinity College Dublin, Dublin, Ireland
| | - Vinod Krishna
- Immunology, Janssen Research & Development, Spring House, PA, USA
| | - Sarah M Wade
- Molecular Rheumatology, Clinical Medicine, Trinity Biomedical Science Institute, Dublin, Ireland
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
| | - Megan Hanlon
- Molecular Rheumatology, Clinical Medicine, Trinity Biomedical Science Institute, Dublin, Ireland
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
| | - Clare Cunningham
- Molecular Rheumatology, Clinical Medicine, Trinity Biomedical Science Institute, Dublin, Ireland
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
| | - Viviana Marzaioli
- Molecular Rheumatology, Clinical Medicine, Trinity Biomedical Science Institute, Dublin, Ireland
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
| | - Mary Canavan
- Molecular Rheumatology, Clinical Medicine, Trinity Biomedical Science Institute, Dublin, Ireland
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
| | - Jean M Fletcher
- Translational Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Ronan H Mullan
- Department of Rheumatology, Tallaght University Hospital, Trinity College Dublin, Dublin, Ireland
| | - Suzanne Cole
- Immunology, Janssen Research & Development, Spring House, PA, USA
| | - Ling-Yang Hao
- Immunology, Janssen Research & Development, Spring House, PA, USA
| | - Michael G Monaghan
- Department of Mechanical and Manufacturing Engineering, Trinity College Dublin, Dublin, Ireland
| | - Sunil Nagpal
- Immunology, Janssen Research & Development, Spring House, PA, USA
| | - Douglas J Veale
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
| | - Ursula Fearon
- Molecular Rheumatology, Clinical Medicine, Trinity Biomedical Science Institute, Dublin, Ireland
- Eular Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Univeristy College Dublin, Dublin, Ireland
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Aarts J, van Caam A, Chen X, Marijnissen RJ, Helsen MM, Walgreen B, Vitters EL, van de Loo FA, van Lent PL, van der Kraan PM, Koenders MI. Local inhibition of TGF-β1 signaling improves Th17/Treg balance but not joint pathology during experimental arthritis. Sci Rep 2022; 12:3182. [PMID: 35210510 PMCID: PMC8873460 DOI: 10.1038/s41598-022-07075-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 02/10/2022] [Indexed: 12/18/2022] Open
Abstract
TGF-β1 is an important growth factor to promote the differentiation of T helper 17 (Th17) and regulatory T cells (Treg). The potential of TGF-β1 as therapeutic target in T cell-mediated diseases like rheumatoid arthritis (RA) is unclear. We investigated the effect of TGF-β1 inhibition on murine Th17 differentiation in vitro, on human RA synovial explants ex vivo, and on the development of experimental arthritis in vivo. Murine splenocytes were differentiated into Th17 cells, and the effect of the TGF-βRI inhibitor SB-505124 was studied. Synovial biopsies were cultured in the presence or absence of SB-505124. Experimental arthritis was induced in C57Bl6 mice and treated daily with SB-505124. Flow cytometry analysis was performed to measure different T cell subsets. Histological sections were analysed to determine joint inflammation and destruction. SB-505124 potently reduced murine Th17 differentiation by decreasing Il17a and Rorc gene expression and IL-17 protein production. SB-505124 significantly suppressed IL-6 production by synovial explants. In vivo, SB-505124 reduced Th17 numbers, while increased numbers of Tregs were observed. Despite this skewed Th17/Treg balance, SB-505124 treatment did not result in suppression of joint inflammation and destruction. Blocking TGF-β1 signalling suppresses Th17 differentiation and improves the Th17/Treg balance. However, local SB-505124 treatment does not suppress experimental arthritis.
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Affiliation(s)
- Joyce Aarts
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Arjan van Caam
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Xinlai Chen
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Renoud J Marijnissen
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Monique M Helsen
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Birgitte Walgreen
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Elly L Vitters
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Fons A van de Loo
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Peter L van Lent
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Peter M van der Kraan
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Marije I Koenders
- Department of Experimental Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center (Radboudumc), PO Box 9101, 6500 HB, Nijmegen, The Netherlands.
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Maleitzke T, Hildebrandt A, Dietrich T, Appelt J, Jahn D, Otto E, Zocholl D, Baranowsky A, Duda GN, Tsitsilonis S, Keller J. The calcitonin receptor protects against bone loss and excessive inflammation in collagen antibody-induced arthritis. iScience 2022; 25:103689. [PMID: 35036874 PMCID: PMC8753130 DOI: 10.1016/j.isci.2021.103689] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/21/2021] [Accepted: 12/21/2021] [Indexed: 11/19/2022] Open
Abstract
Pharmacological application of teleost calcitonin (CT) has been shown to exert chondroprotective and anti-resorptive effects in patients with rheumatoid arthritis (RA). However, the role of endogenous CT that signals through the calcitonin receptor (CTR) remains elusive. Collagen II antibody-induced arthritis (CAIA) was stimulated in wild type (WT) and CTR-deficient (Calcr−/−) mice. Animals were monitored over 10 or 48 days. Joint inflammation, cartilage degradation, and bone erosions were assessed by clinical arthritis score, histology, histomorphometry, gene expression analysis, and μ-computed tomography. CAIA was accompanied by elevated systemic CT levels and CTR expression in the articular cartilage. Inflammation, cartilage degradation, and systemic bone loss were more pronounced in Calcr−/− CAIA mice. Expression of various pro-inflammatory, bone resorption, and catabolic cartilage markers were exclusively increased in Calcr−/− CAIA mice. Endogenous CT signaling through the mammalian CTR has the potential to protect against joint inflammation, cartilage degradation, and excessive bone remodeling in experimental RA. CT levels are increased systemically during acute experimental RA CTR is primarily expressed in the superficial articular cartilage layer in CAIA In CAIA CTR-deficiency is associated with increased inflammation marker expression Bone architecture is impaired in experimental RA when CTR signaling is disrupted
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Affiliation(s)
- Tazio Maleitzke
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, 13353 Berlin, Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Julius Wolff Institute, 13353 Berlin, Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, 10178 Berlin, Germany
| | - Alexander Hildebrandt
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, 13353 Berlin, Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Julius Wolff Institute, 13353 Berlin, Germany
| | - Tamara Dietrich
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, 13353 Berlin, Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Julius Wolff Institute, 13353 Berlin, Germany
| | - Jessika Appelt
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, 13353 Berlin, Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Julius Wolff Institute, 13353 Berlin, Germany
| | - Denise Jahn
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, 13353 Berlin, Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Julius Wolff Institute, 13353 Berlin, Germany
| | - Ellen Otto
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, 13353 Berlin, Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Julius Wolff Institute, 13353 Berlin, Germany
| | - Dario Zocholl
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biometry and Clinical Epidemiology, 10117 Berlin, Germany
| | - Anke Baranowsky
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany
| | - Georg N. Duda
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Julius Wolff Institute, 13353 Berlin, Germany
| | - Serafeim Tsitsilonis
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, 13353 Berlin, Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Julius Wolff Institute, 13353 Berlin, Germany
| | - Johannes Keller
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, 10178 Berlin, Germany
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany
- Corresponding author
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5
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Miagoux Q, Singh V, de Mézquita D, Chaudru V, Elati M, Petit-Teixeira E, Niarakis A. Inference of an Integrative, Executable Network for Rheumatoid Arthritis Combining Data-Driven Machine Learning Approaches and a State-of-the-Art Mechanistic Disease Map. J Pers Med 2021; 11:785. [PMID: 34442429 PMCID: PMC8400381 DOI: 10.3390/jpm11080785] [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: 07/10/2021] [Revised: 08/02/2021] [Accepted: 08/10/2021] [Indexed: 02/07/2023] Open
Abstract
Rheumatoid arthritis (RA) is a multifactorial, complex autoimmune disease that involves various genetic, environmental, and epigenetic factors. Systems biology approaches provide the means to study complex diseases by integrating different layers of biological information. Combining multiple data types can help compensate for missing or conflicting information and limit the possibility of false positives. In this work, we aim to unravel mechanisms governing the regulation of key transcription factors in RA and derive patient-specific models to gain more insights into the disease heterogeneity and the response to treatment. We first use publicly available transcriptomic datasets (peripheral blood) relative to RA and machine learning to create an RA-specific transcription factor (TF) co-regulatory network. The TF cooperativity network is subsequently enriched in signalling cascades and upstream regulators using a state-of-the-art, RA-specific molecular map. Then, the integrative network is used as a template to analyse patients' data regarding their response to anti-TNF treatment and identify master regulators and upstream cascades affected by the treatment. Finally, we use the Boolean formalism to simulate in silico subparts of the integrated network and identify combinations and conditions that can switch on or off the identified TFs, mimicking the effects of single and combined perturbations.
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Affiliation(s)
- Quentin Miagoux
- Université Paris-Saclay, Univ Evry, Laboratoire Européen de Recherche pour la Polyarthrite rhumatoïde-Genhotel, 91057 Evry, France; (Q.M.); (V.S.); (D.d.M.); (V.C.); (E.P.-T.)
| | - Vidisha Singh
- Université Paris-Saclay, Univ Evry, Laboratoire Européen de Recherche pour la Polyarthrite rhumatoïde-Genhotel, 91057 Evry, France; (Q.M.); (V.S.); (D.d.M.); (V.C.); (E.P.-T.)
| | - Dereck de Mézquita
- Université Paris-Saclay, Univ Evry, Laboratoire Européen de Recherche pour la Polyarthrite rhumatoïde-Genhotel, 91057 Evry, France; (Q.M.); (V.S.); (D.d.M.); (V.C.); (E.P.-T.)
| | - Valerie Chaudru
- Université Paris-Saclay, Univ Evry, Laboratoire Européen de Recherche pour la Polyarthrite rhumatoïde-Genhotel, 91057 Evry, France; (Q.M.); (V.S.); (D.d.M.); (V.C.); (E.P.-T.)
| | - Mohamed Elati
- CANTHER, University of Lille, CNRS UMR 1277, Inserm U9020, 59045 Lille, France;
| | - Elisabeth Petit-Teixeira
- Université Paris-Saclay, Univ Evry, Laboratoire Européen de Recherche pour la Polyarthrite rhumatoïde-Genhotel, 91057 Evry, France; (Q.M.); (V.S.); (D.d.M.); (V.C.); (E.P.-T.)
| | - Anna Niarakis
- Université Paris-Saclay, Univ Evry, Laboratoire Européen de Recherche pour la Polyarthrite rhumatoïde-Genhotel, 91057 Evry, France; (Q.M.); (V.S.); (D.d.M.); (V.C.); (E.P.-T.)
- Lifeware Group, Inria, Saclay-île de France, 91120 Palaiseau, France
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Murugesan S, Srinivasan V, Lakshmanan DK, Venkateswaran MR, Jayabal S, Muthukumar Nadar MSA, Kathiravan A, Asha Jhonsi M, Thilagar S, Periyasamy S. Evaluation of the anti-rheumatic properties of thymol using carbon dots as nanocarriers on FCA induced arthritic rats. Food Funct 2021; 12:5038-5050. [PMID: 33960359 DOI: 10.1039/d1fo00471a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Rheumatoid Arthritis (RA) is an autoimmune disease that commences as inflammation and progressively destroys the articular joint. In this study, we assess the anti-rheumatic potential of the monoterpenoid class of thymol conjugated with Carbon Dots (CDs). Waste biomass in the form of dried rose petals was chosen as a precursor for the synthesis of CDs via a one-step hydrothermal bottom-up methodology. The prepared CDs exhibited absorption in the near-visible region, and unique excitation-dependent emission behaviour was confirmed from UV-Visible and fluorescence measurements. The surface morphology of CDs was confirmed by SEM and HR-TEM analysis to be quasi-spherical particles with an average size of ∼5-6 nm. The presence of various functional moieties (hydroxyl, carbonyl, and amino) was confirmed via FT-IR measurement. The graphitization of CDs was confirmed by the D and G bands for sp2 and sp3 hybridization, respectively, through Raman analysis. Esterification methodology was adopted to prepare the CDs-thymol conjugate and confirmed via FT-IR analysis. CDs play the role of a nanocarrier for thymol, an anti-arthritic agent. The bioactive compound of thymol showed potent anti-arthritic activity against RA targets through in silico docking studies. Further, the in vivo studies revealed that CDs-thymol conjugates (10 mg per kg body weight) showed a significant reduction in rat paw volume along with reduced levels of RF and CRP (2.23 ± 0.42 IU ml-1 and 16.96 ± 0.22 mg ml-1) when compared to the disease control rats. X-ray radiography and ultrasonic imaging revealed less bone destruction, joint derangement, and swelling in arthritis-induced Wistar rats. They could also potentially improve the Hb (14.14 ± 0.19), RBC (6.01 ± 0.11), PCV (6.01 ± 0.11) levels and elevate the status of antioxidant enzymes (GPx, SOD, MDA), and the activity was comparable to the standard drug, ibuprofen (10 mg kg-1), suggesting that the CDs-thymol conjugate at 10 mg kg-1 could act as a strong anti-arthritic agent. This work is evidence for the utilization of waste biomass as a value-added product such as a nanocarrier for biomedical applications.
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Affiliation(s)
- Selvakumar Murugesan
- Department of Biotechnology, Anna University, BIT-Campus, Tiruchirappalli 620 024, Tamil Nadu, India.
| | - Venkatesan Srinivasan
- Department of Chemistry, B. S. Abdur Rahman Crescent Institute of Science and Technology, Vandalur, Chennai - 600 048, Tamil Nadu, India.
| | - Dinesh Kumar Lakshmanan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India.
| | - Meenakshi R Venkateswaran
- Department of Biotechnology, Anna University, BIT-Campus, Tiruchirappalli 620 024, Tamil Nadu, India.
| | - Sasidharan Jayabal
- Department of Biotechnology, Anna University, BIT-Campus, Tiruchirappalli 620 024, Tamil Nadu, India.
| | - M S A Muthukumar Nadar
- Department of Biotechnology, School of Agriculture and Biosciences, Karunya Institute of Technology and Sciences, Coimbatore 641 114, Tamil Nadu, India
| | - Arunkumar Kathiravan
- Department of Chemistry, Vel Tech Rangarajan Dr Sagunthala R & D Institute of Science and Technology, Avadi, Chennai 600 062, Tamil Nadu, India
| | - Mariadoss Asha Jhonsi
- Department of Chemistry, B. S. Abdur Rahman Crescent Institute of Science and Technology, Vandalur, Chennai - 600 048, Tamil Nadu, India.
| | - Sivasudha Thilagar
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India.
| | - Sureshkumar Periyasamy
- Department of Biotechnology, Anna University, BIT-Campus, Tiruchirappalli 620 024, Tamil Nadu, India.
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Evaluation of anti rheumatic activity of Piper betle L. (Betelvine) extract using in silico, in vitro and in vivo approaches. Bioorg Chem 2020; 103:104227. [PMID: 32891004 DOI: 10.1016/j.bioorg.2020.104227] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/29/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022]
Abstract
Rheumatoid Arthritis is a chronic, inflammatory, and systemic autoimmune disease, it affects elders worldwide. Herbal medicines have been used for the treatment of various ailments from ancient times. Betelvine (Piper betle L.) leaves have long been used in Asian countries as a medicine to relieve pain and some metabolic diseases. The present study of methanolic extract of phytochemical analysis confirms the presence of alkaloids, tannins, terpenoids, saponins, steroids, total flavonoids and total phenols. GC-MS analysis of MeOH extract of Piper betle (PBME) revealed the presence of 40 bioactive compounds. In vitro antioxidant and anti-inflammatory assays showed greater inhibitory effect. The anti-arthritic effects of PBME at 250 and 500 mg/kg concentration showed recovery from joint damage in in vivo rat model. Among the 40 GC-MS derived bioactives, 4-Allyl-1,2-Diacetoxybenzene exhibited the higher interactions with minimized binding energy to the RA targets of MMP 1 (-6.4 kcal/mol), TGF-β (-6.9 kcal/mol), IL-1β (-5.9 kcal/mol). Further, the effect of PBME extract against RA molecular disease targets (IL-1β, MMP1 and TGF- β) were studied using Real-time PCR. These results substantiate that P. betle leaves could be a source of therapeutics for the treatment of rheumatoid arthritis.
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Effect of Jiawei Fengshining on Synovial Cell Apoptosis and TGF- β1/Smad Signaling Pathway in Rats with Rheumatoid Arthritis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2019:8614034. [PMID: 31929822 PMCID: PMC6942847 DOI: 10.1155/2019/8614034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/28/2019] [Accepted: 11/30/2019] [Indexed: 11/21/2022]
Abstract
Background/Aims Jiawei Fengshining (JWFSN) is a new formula originated from Fengshining, a classic formula for the treatment of rheumatoid arthritis (RA). The mechanism of JWFSN in the treatment of RA is still unclear. The aim of this study was to evaluate the effect of JWFSN formula on the inflammatory mediator levels in the serum and the TGF-β1/Smad pathway in the synovium and to explore the underlying mechanisms of JWFSN formula to ameliorate synovial hyperplasia and apoptosis inhibition of synovium in rats with RA. Method SPF female Wistar rats were randomly divided into 6 groups: the blank control group, the model control group, the positive drug group, and the low-, medium-, and high- dose JWFSN groups, with 8 rats in each group. Enzyme-linked immunosorbent assay (ELISA) was used to detect inflammatory mediators, anti-inflammatory mediators, and rheumatoid factor (RF). The pathological condition and apoptosis of the synovial tissue were detected by hematoxylin and eosin (HE) and TUNEL staining, respectively. TGF-β1, p-Smad2, p-Smad3, and Smad7 protein expressions in synovial tissue were measured by western blot assay. In addition, human rheumatoid arthritis fibroblast-like synoviocytes cell line MH7A was treated with 20% JWFSN-containing serum to obtain in vitro data. Result The administration of JWFSN was found to ameliorate synovial hyperplasia and promote apoptosis; increase the serum contents of anti-inflammatory mediators; reduce inflammatory mediators and RF contents; and inhibit the TGF-β1/Smad signaling pathway in CIA rats. In vitro JWFSN treatment increased the apoptosis of MH7A cells and decreased cell viability. Additionally, JWFSN treatment inhibited the TGF-β1/Smad signaling pathway in MH7A cells. Interestingly, kartogenin (TGF-β1/Smad pathway activator) treament reversed the effects of JWFSN treatment. Conclusion JWFSN may ameliorate inflammatory factors' abnormality, synovial hyperplasia, and apoptosis inhibition of synovium via the TGF-β1/Smad signaling pathway.
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Brink M, Lundquist A, Alexeyenko A, Lejon K, Rantapää-Dahlqvist S. Protein profiling and network enrichment analysis in individuals before and after the onset of rheumatoid arthritis. Arthritis Res Ther 2019; 21:288. [PMID: 31842970 PMCID: PMC6915963 DOI: 10.1186/s13075-019-2066-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 11/22/2019] [Indexed: 02/10/2023] Open
Abstract
Background Antibodies and upregulated cytokines and chemokines predate the onset of rheumatoid arthritis (RA) symptoms. We aimed to identify the pathways related to the early processes leading to RA development, as well as potential novel biomarkers, using multiple protein analyses. Methods A case-control study was conducted within the Biobank of northern Sweden. The plasma samples from 118 pre-symptomatic individuals (207 samples; median predating time 4.1 years), 79 early RA patients, and 74 matched controls were analyzed. The levels of 122 unique proteins with an acknowledged relationship to autoimmunity were analyzed using 153 antibodies and a bead-based multiplex system (FlexMap3D; Luminex Corp.). The data were analyzed using multifactorial linear regression model, random forest, and network enrichment analysis (NEA) based on the 10 most significantly differentially expressed proteins for each two-by-two group comparison, using the MSigDB collection of hallmarks. Results There was a high agreement between the different statistical methods to identify the most significant proteins. The adipogenesis and interferon alpha response hallmarks differentiated pre-symptomatic individuals from controls. These two hallmarks included proteins involved in innate immunity. Between pre-symptomatic individuals and RA patients, three hallmarks were identified as follows: apical junction, epithelial mesenchymal transition, and TGF-β signaling, including proteins suggestive of cell interaction, remodulation, and fibrosis. The adipogenesis and heme metabolism hallmarks differentiated RA patients from controls. Conclusions We confirm the importance of interferon alpha signaling and lipids in the early phases of RA development. Network enrichment analysis provides a tool for a deeper understanding of molecules involved at different phases of the disease progression.
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Affiliation(s)
- Mikael Brink
- Department of Public Health and Clinical Medicine, Rheumatology, Umeå University, 901 87, Umeå, Sweden.
| | - Anders Lundquist
- Department of Clinical Microbiology, Division of Infection and Immunology, Umeå University, 901 87, Umeå, Sweden
| | - Andrey Alexeyenko
- Science for Life Laboratory, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Kristina Lejon
- Division of Infection and Immunology, Department of Clinical Microbiology, Umeå University, Umeå, Sweden
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Hu Y, Liu X, Xia Q, Yin T, Bai C, Wang Z, Du L, Li X, Wang W, Sun L, Liu Y, Zhang H, Deng L, Chen Y. Comparative anti-arthritic investigation of iridoid glycosides and crocetin derivatives from Gardenia jasminoides Ellis in Freund's complete adjuvant-induced arthritis in rats. PHYTOMEDICINE 2019; 53:223-233. [PMID: 30668402 DOI: 10.1016/j.phymed.2018.07.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 05/08/2018] [Accepted: 07/16/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Discovering novel compounds with higher activities is a key aim of natural products research. Gardenia jasminoides Ellis is a herb with anti-inflammatory properties. Iridoid glycosides (mainly geniposide) and crocetin derivatives (crocins) are the two major active constituents in this herb and are considered its active ingredients. However, which components are responsible for the anti-inflammatory properties of gardenia have remained to be investigated. PURPOSE Here, we prepared total iridoid glycocides (TIG) and total crocins (TC) from G. jasminoides Ellis, determined their main chemical constituents, and performed animal studies to evaluate their anti-adjuvant arthritis activities, thus, proposing a reasonable mechenism to explain the anti-inflammatory activities of the active components in this herbal remedy. STUDY DESIGN TIG and TC were prepared by using HPD-100 macroporous resin, and characterized by UHPLC-DAD-MS and UV-Vis spectrophotometer. Then, freund's complete adjuvant-injected rats underwent drug treatments with TIG (160 mg/kg) and TC (160 mg/kg) for 14 days, and their ankle diameters were measured. Moreover, X-ray radiographs of the adjuvant injected hind paws were evaluated. Finally, histopathological examinations of the ankle joints, spleens and thymus were carried out to evaluate inflammatory reactions, and immunohistochemical measurements were conducted to evaluate TNF-α and TGF-β1 expression in the ankle joint of the rats. RESULTS The chemical composition determination of the current study showed that TIG was mainly composed of geniposide and TC was a fraction predominantly with crocin-1, crocin-2 and crocin-3. Calculation of results showed that TIG and TC contained 58.2% total iridoid glycosides and 54.7% total crocins, respectively. Our study suggested TIG and TC treatments markedly decreased paw swelling and ankle diameters of AA rats (both p < 0.05). The radiological analysis showed that administration of TIG and TC ameliorated bone destruction, and reduced the radiological bone destruction scores (TIG p < 0.05, TC p>0.05). Moreover, data from histological assessment demonstrated considerable mitigation of inflammation in the joints (both p < 0.01), spleen and thymus of AA rats treated with TIG and TC. TNF-α and TGF-β1 protein expression according to immunohistochemistry staining also supported the anti-arthritis activities of TIG and TC (TNF-α: TIG p < 0.01 and TC p < 0.05, TGF-β1: TIG p < 0.01 and TC p>0.05). CONCLUSION In the current study, fractionation of gardenia prior to further in vivo investigation has for the first time provided reasonable explanation for the anti-inflammatory activity of this herbal remedy. Our study showed that both TIG and TC from gardenia have anti-inflammatory properties. Overall, these experimental findings suggest that gardenia could be regarded as a potential therapeutic target for arthritis. However, as geniposide has a higher content than crocins in this herbal drug, TIG (mainly geniposide) seems to be primarily responsible for the anti-inflammatory properties of gardenia. Taken together, this maiden attempt demonstrated that TIG (mainly geniposide) is more important in evaluating the anti-inflammatory activity of G. jasminoides Ellis.
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Affiliation(s)
- Yaya Hu
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Xin Liu
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Qiang Xia
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Tianpeng Yin
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Chuan Bai
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ze Wang
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Lianfeng Du
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Xiaobo Li
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Wenjun Wang
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Lin Sun
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Yinhua Liu
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Hao Zhang
- West China School of Pharmacy, Sichuan University, No. 17, Duan 3, Renmin Nan Road, Chengdu, Sichuan, China
| | - Liang Deng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University Chenggong New City, Kunming, China.
| | - Yang Chen
- Department of Biopharmaceuticals and Materials Engineering, Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China.
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Zhou G, Sun X, Qin Q, Lv J, Cai Y, Wang M, Mu R, Lan HY, Wang QW. Loss of Smad7 Promotes Inflammation in Rheumatoid Arthritis. Front Immunol 2018; 9:2537. [PMID: 30450102 PMCID: PMC6224447 DOI: 10.3389/fimmu.2018.02537] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/15/2018] [Indexed: 11/29/2022] Open
Abstract
Objective: Smad7 is an inhibitory Smad and plays a protective role in many inflammatory diseases. However, the roles of Smad7 in rheumatoid arthritis (RA) remain unexplored, which were investigated in this study. Methods: The activation of TGF-β/Smad signaling was examined in synovial tissues of patients with RA. The functional roles and mechanisms of Smad7 in RA were determined in a mouse model of collagen-induced arthritis (CIA) in Smad7 wild-type (WT) and knockout (KO) CD-1 mice, a strain resistant to autoimmune arthritis induction. Results: TGF-β/Smad3 signaling was markedly activated in synovial tissues of patients with RA, which was associated with the loss of Smad7, and enhanced Th17 and Th1 immune response. The potential roles of Smad7 in RA were further investigated in a mouse model of CIA in Smad7 WT/KO CD-1 mice. As expected, Smad7-WT CD-1 mice did not develop CIA. Surprisingly, CD-1 mice with Smad7 deficiency developed severe arthritis including severe joint swelling, synovial hyperplasia, cartilage damage, massive infiltration of CD3+ T cells and F4/80+ macrophages, and upregulation of proinflammatory cytokines IL-1β, TNFα, and MCP-1. Further studies revealed that enhanced arthritis in Smad7 KO CD-1 mice was associated with increased Th1, Th2 and, importantly, Th17 over the Treg immune response with overactive TGF-β/Smad3 and proinflammatory IL-6 signaling in the joint tissues. Conclusions: Smad7 deficiency increases the susceptibility to autoimmune arthritis in CD-1 mice. Enhanced TGF-β/Smad3-IL-6 signaling and Th17 immune response may be a mechanism through which disrupted Smad7 causes autoimmune arthritis in CD-1 mice.
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Affiliation(s)
- Gengmin Zhou
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Xiaolin Sun
- Department of Rheumatology and Immunology, Peking University People's Hospital, Peking, China
| | - Qingxia Qin
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jiyang Lv
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Yueming Cai
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Meiying Wang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Rong Mu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Peking, China
| | - Hui-Yao Lan
- Department of Medicine and therapeutics, Li KaShing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, China
| | - Qing-Wen Wang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen, China
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Yoshikawa Y, Katayanagi Y, Kamiya M, Yamamoto Y, Fukutomi R, Imai S, Miyoshi N, Ohashi N. Tomato saponin supplementation ameliorates the development of experimental arthritis by regulating inflammatory responses. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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13
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Panga V, Raghunathan S. A cytokine protein-protein interaction network for identifying key molecules in rheumatoid arthritis. PLoS One 2018; 13:e0199530. [PMID: 29928007 PMCID: PMC6013252 DOI: 10.1371/journal.pone.0199530] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 06/08/2018] [Indexed: 12/16/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease of the synovial joints. Though the current RA therapeutics such as disease-modifying antirheumatic drugs (DMARDs), nonsteroidal anti-inflammatory drugs (NSAIDs) and biologics can halt the progression of the disease, none of these would either dramatically reduce or cure RA. So, the identification of potential therapeutic targets and new therapies for RA are active areas of research. Several studies have discovered the involvement of cytokines in the pathogenesis of this disease. These cytokines induce signal transduction pathways in RA synovial fibroblasts (RASF). These pathways share many signal transducers and their interacting proteins, resulting in the formation of a signaling network. In order to understand the involvement of this network in RA pathogenesis, it is essential to identify the key transducers and their interacting proteins that are part of this network. In this study, based on a detailed literature survey, we have identified a list of 12 cytokines that induce signal transduction pathways in RASF. For these cytokines, we have built a signaling network using the protein-protein interaction (PPI) data that was obtained from public repositories such as HPRD, BioGRID, MINT, IntAct and STRING. By combining the network centrality measures with the gene expression data from the RA related microarrays that are available in the open source Gene Expression Omnibus (GEO) database, we have identified 24 key proteins of this signaling network. Two of these 24 are already drug targets for RA, and of the remaining, 12 have direct PPI links to some of the current drug targets of RA. Therefore, these key proteins seem to be crucial in the pathogenesis of RA and hence might be treated as potential drug targets.
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Affiliation(s)
- Venugopal Panga
- Institute of Bioinformatics and Applied Biotechnology (IBAB), Biotech Park, Electronics City Phase I, Bengaluru, Karnataka, India
- Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Srivatsan Raghunathan
- Institute of Bioinformatics and Applied Biotechnology (IBAB), Biotech Park, Electronics City Phase I, Bengaluru, Karnataka, India
- * E-mail:
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Abd-Elhalem SS, Haggag NZ, El-Shinnawy NA. Bone marrow mesenchymal stem cells suppress IL-9 in adjuvant-induced arthritis. Autoimmunity 2018; 51:25-34. [PMID: 29359591 DOI: 10.1080/08916934.2018.1428956] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Interleukin-9 (IL-9) has been shown to be upregulated in rheumatoid arthritis (RA). The exact role of IL-9 has not yet been effectively studied. Mesenchymal stem cells (MSCs) have shown a promising immunomodulatory role towards repairing cartilage and restoring joint function. One of the key problems influencing the therapeutic efficacy of stem cell therapy is the poor cell survival following transplantation. This is attributed to oxidative and inflammatory stresses at the injured sites. Hesperidin (Hsd), a flavanone present in citrus fruits, has been studied as potential therapeutic agents that have anti-oxidant and anti-inflammatory activities. The objective of this study is to evaluate the therapeutic paracrine action of bone marrow MSCs on the IL-9 level in adjuvant-induced arthritis (AIA) and the enhancement effect of Hsd on transplanted MSCs. Articular tissue inflammation and cartilage damage were assessed by histological scoring. Antinuclear autoantibodies, tumour necrosis factor-alpha (TNF-α), IL-9, IL-4, interferon gamma (IFN-δ), and transforming growth factor-beta1 (TGF-β1), as well as malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD) levels, were assessed in spleen tissue homogenates after treatment with MSCs either alone or combined with Hsd for 4 weeks in an AIA rat model. Results of this study confirmed that MSCs decreased IL-9 levels in AIA and provide novel insights into the application of Hsd on MSC-based treatments. Highlights Adjuvant-induced arthritis (AIA) is one of the most widely used models that has a great similarity to rheumatoid arthritis (RA). Few studies in recent years have estimated IL-9 in rheumatic diseases and it remains an understudied cytokine. For the first time, bone marrow mesenchymal stem cells (MSCs) therapy has a vital role in splenocytes IL-9 level and further studies are required. Combined therapy of MSCs with antioxidants as hesperidin (Hsd) can alleviate oxidative stress and enhance stem cells immunomodulatory action.
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Affiliation(s)
- Sahar Sobhy Abd-Elhalem
- a Zoology Department, Faculty of Women for Arts, Science and Education , Ain Shams University , Cairo , Egypt
| | - Nawal Zakaria Haggag
- a Zoology Department, Faculty of Women for Arts, Science and Education , Ain Shams University , Cairo , Egypt
| | - Nashwa Ahmed El-Shinnawy
- a Zoology Department, Faculty of Women for Arts, Science and Education , Ain Shams University , Cairo , Egypt
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15
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Szondy Z, Pallai A. Transmembrane TNF-alpha reverse signaling leading to TGF-beta production is selectively activated by TNF targeting molecules: Therapeutic implications. Pharmacol Res 2017; 115:124-132. [DOI: 10.1016/j.phrs.2016.11.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 11/21/2016] [Indexed: 12/25/2022]
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Periploca forrestii Saponin Ameliorates Murine CFA-Induced Arthritis by Suppressing Cytokine Production. Mediators Inflamm 2016; 2016:7941684. [PMID: 28057980 PMCID: PMC5183772 DOI: 10.1155/2016/7941684] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 08/07/2016] [Indexed: 12/18/2022] Open
Abstract
Periploca forrestii Schltr. has been used as a Chinese folk medicine due to its versatile pharmacological effects such as promoting wounds and rheumatoid arthritis. However, the antiarthritic activity of Periploca forrestii saponin (PFS) and its active compound Periplocin has still not been demonstrated. Here, we evaluated the antiarthritic effects of PFS in adjuvant-induced arthritis (AIA) rats by intragastric administration at a dose of 50 mg/kg. The anti-inflammatory activities of Periplocin were also examined in LPS-induced AIA splenocytes and synoviocytes. PFS significantly ameliorated joint swelling; inhibited bone erosion in joints; lowered levels of IL-6 and TGF-β1 in AIA rat splenocyte; and reduced joint protein expression levels of phospho-STAT3 and IKKα. Using LPS-induced AIA splenocytes, we demonstrate that Periplocin suppressed the key proinflammatory cytokines levels of IL-6, IFN-γ, TGF-β1, and IL-13 and IL-22 and transcription factor levels of T-bet, GATA3, and C-Jun genes. Periplocin also suppressed LPS-induced cytokine secretion from synoviocytes. Our study highlights the antiarthritic activity of PFS and its derived Periplocin and the underlying mechanisms. These results provide a strong rationale for further testing and validation of the use of Periploca forrestii Schltr. as an alternative modality for the treatment of RA.
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Fennen M, Pap T, Dankbar B. Smad-dependent mechanisms of inflammatory bone destruction. Arthritis Res Ther 2016; 18:279. [PMID: 27906049 PMCID: PMC5134126 DOI: 10.1186/s13075-016-1187-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/18/2016] [Indexed: 12/20/2022] Open
Abstract
Homeostatic bone remodelling becomes disturbed in a variety of pathologic conditions that affect the skeleton, including inflammatory diseases. Rheumatoid arthritis is the prototype of an inflammatory arthritis characterised by chronic inflammation, progressive cartilage destruction and focal bone erosions and is a prime example for a disease with disturbed bone homeostasis. The inflammatory milieu favours the recruitment and activation of osteoclasts, which have been found to be the cells that are primarily responsible for bone erosions in many animal models of inflammatory arthritis. Among the inflammatory modulators, members of the transforming growth factor (TGF)-β super family are shown to be important regulators in osteoclastogenesis with Smad-mediated signalling being crucial for inducing osteoclast differentiation. These findings have opened a new field for exploring mechanisms of osteoclast differentiation under inflammatory conditions. Recent studies have shown that the TGF-β superfamily members TGF-β1, myostatin and activin A directly regulate osteoclast differentiation through mechanisms that depend on the RANKL–RANK interplay. These growth factors transduce their signals through type I and II receptor serine/threonine kinases, thereby activating the Smad pathway. In this review, we describe the impact of inflammation-induced Smad signalling in osteoclast development and subsequently bone erosion in rheumatoid arthritis.
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Affiliation(s)
- Michelle Fennen
- Institute of Experimental Musculoskeletal Medicine, Westfalian Wilhelms-University Münster, Münster, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, Westfalian Wilhelms-University Münster, Münster, Germany
| | - Berno Dankbar
- Institute of Experimental Musculoskeletal Medicine, Westfalian Wilhelms-University Münster, Münster, Germany.
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18
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Wu M, Chen G, Li YP. TGF-β and BMP signaling in osteoblast, skeletal development, and bone formation, homeostasis and disease. Bone Res 2016; 4:16009. [PMID: 27563484 PMCID: PMC4985055 DOI: 10.1038/boneres.2016.9] [Citation(s) in RCA: 978] [Impact Index Per Article: 122.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 03/04/2016] [Accepted: 03/07/2016] [Indexed: 12/11/2022] Open
Abstract
Transforming growth factor-beta (TGF-β) and bone morphogenic protein (BMP) signaling has fundamental roles in both embryonic skeletal development and postnatal bone homeostasis. TGF-βs and BMPs, acting on a tetrameric receptor complex, transduce signals to both the canonical Smad-dependent signaling pathway (that is, TGF-β/BMP ligands, receptors, and Smads) and the non-canonical-Smad-independent signaling pathway (that is, p38 mitogen-activated protein kinase/p38 MAPK) to regulate mesenchymal stem cell differentiation during skeletal development, bone formation and bone homeostasis. Both the Smad and p38 MAPK signaling pathways converge at transcription factors, for example, Runx2 to promote osteoblast differentiation and chondrocyte differentiation from mesenchymal precursor cells. TGF-β and BMP signaling is controlled by multiple factors, including the ubiquitin–proteasome system, epigenetic factors, and microRNA. Dysregulated TGF-β and BMP signaling result in a number of bone disorders in humans. Knockout or mutation of TGF-β and BMP signaling-related genes in mice leads to bone abnormalities of varying severity, which enable a better understanding of TGF-β/BMP signaling in bone and the signaling networks underlying osteoblast differentiation and bone formation. There is also crosstalk between TGF-β/BMP signaling and several critical cytokines’ signaling pathways (for example, Wnt, Hedgehog, Notch, PTHrP, and FGF) to coordinate osteogenesis, skeletal development, and bone homeostasis. This review summarizes the recent advances in our understanding of TGF-β/BMP signaling in osteoblast differentiation, chondrocyte differentiation, skeletal development, cartilage formation, bone formation, bone homeostasis, and related human bone diseases caused by the disruption of TGF-β/BMP signaling.
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Affiliation(s)
- Mengrui Wu
- Department of Pathology, University of Alabama at Birmingham , Birmingham, USA
| | - Guiqian Chen
- Department of Pathology, University of Alabama at Birmingham, Birmingham, USA; Department of neurology, Bruke Medical Research Institute, Weil Cornell Medicine of Cornell University, White Plains, USA
| | - Yi-Ping Li
- Department of Pathology, University of Alabama at Birmingham , Birmingham, USA
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Charbonneau M, Lavoie RR, Lauzier A, Harper K, McDonald PP, Dubois CM. Platelet-Derived Growth Factor Receptor Activation Promotes the Prodestructive Invadosome-Forming Phenotype of Synoviocytes from Patients with Rheumatoid Arthritis. THE JOURNAL OF IMMUNOLOGY 2016; 196:3264-75. [DOI: 10.4049/jimmunol.1500502] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 02/15/2016] [Indexed: 11/19/2022]
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20
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Xu X, Zheng L, Bian Q, Xie L, Liu W, Zhen G, Crane JL, Zhou X, Cao X. Aberrant Activation of TGF-β in Subchondral Bone at the Onset of Rheumatoid Arthritis Joint Destruction. J Bone Miner Res 2015; 30:2033-43. [PMID: 25967237 PMCID: PMC4809636 DOI: 10.1002/jbmr.2550] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 04/23/2015] [Accepted: 05/07/2015] [Indexed: 02/05/2023]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease that often leads to joint destruction. A myriad of drugs targeting the immune abnormalities and downstream inflammatory cascades have been developed, but the joint destruction is not effectively halted. Here we report that aberrant activation of TGF-β in the subchondral bone marrow by immune response increases osteoprogenitors and uncoupled bone resorption and formation in RA mouse/rat models. Importantly, either systemic or local blockade of TGF-β activity in the subchondral bone attenuated articular cartilage degeneration in RA. Moreover, conditional deletion of TGF-β receptor II (Tgfbr2) in nestin-positive cells also effectively halted progression of RA joint destruction. Our data demonstrate that aberrant activation of TGF-β in the subchondral bone is involved at the onset of RA joint cartilage degeneration. Thus, modulation of subchondral bone TGF-β activity could be a potential therapy for RA joint destruction.
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Affiliation(s)
- Xin Xu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Liwei Zheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Qin Bian
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Institute of Spine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Liang Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Wenlong Liu
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The University of Hong Kong, Hong Kong, PR China
| | - Gehua Zhen
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Janet L Crane
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Pediatrics, Johns Hopkins University, Baltimore, MD, USA
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - Xu Cao
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Phosphorylation status determines the opposing functions of Smad2/Smad3 as STAT3 cofactors in TH17 differentiation. Nat Commun 2015; 6:7600. [PMID: 26194464 PMCID: PMC4518312 DOI: 10.1038/ncomms8600] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 05/22/2015] [Indexed: 12/15/2022] Open
Abstract
Transforming growth factor-β (TGF-β) and interleukin-6 (IL-6) are the pivotal cytokines to induce IL-17-producing CD4+ T helper cells (TH17); yet their signalling network remains largely unknown. Here we show that the highly homologous TGF-β receptor-regulated Smads (R-Smads): Smad2 and Smad3 oppositely modify STAT3-induced transcription of IL-17A and retinoic acid receptor-related orphan nuclear receptor, RORγt encoded by Rorc, by acting as a co-activator and co-repressor of STAT3, respectively. Smad2 linker phosphorylated by extracellular signal-regulated kinase (ERK) at the serine 255 residue interacts with STAT3 and p300 to transactivate, whereas carboxy-terminal unphosphorylated Smad3 interacts with STAT3 and protein inhibitor of activated STAT3 (PIAS3) to repress the Rorc and Il17a genes. Our work uncovers carboxy-terminal phosphorylation-independent noncanonical R-Smad–STAT3 signalling network in TH17 differentiation. TGF-ß and IL-6 are the essential cytokines for mediating the differentiation of IL-17-producing CD4+ T helper cells (TH17). Here, Yoon et al. provide more insights into this process and describe the opposing roles of TGFß-signalling intermediates Smad2 and Smad3 as STAT3 cofactors in Th17 differentiation.
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Störch H, Zimmermann B, Resch B, Tykocinski LO, Moradi B, Horn P, Kaya Z, Blank N, Rehart S, Thomsen M, Lorenz HM, Neumann E, Tretter T. Activated human B cells induce inflammatory fibroblasts with cartilage-destructive properties and become functionally suppressed in return. Ann Rheum Dis 2015; 75:924-32. [DOI: 10.1136/annrheumdis-2014-206965] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 04/26/2015] [Indexed: 12/21/2022]
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Kupfer P, Huber R, Weber M, Vlaic S, Häupl T, Koczan D, Guthke R, Kinne RW. Novel application of multi-stimuli network inference to synovial fibroblasts of rheumatoid arthritis patients. BMC Med Genomics 2014; 7:40. [PMID: 24989895 PMCID: PMC4099018 DOI: 10.1186/1755-8794-7-40] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 06/25/2014] [Indexed: 11/19/2022] Open
Abstract
Background Network inference of gene expression data is an important challenge in systems biology. Novel algorithms may provide more detailed gene regulatory networks (GRN) for complex, chronic inflammatory diseases such as rheumatoid arthritis (RA), in which activated synovial fibroblasts (SFBs) play a major role. Since the detailed mechanisms underlying this activation are still unclear, simultaneous investigation of multi-stimuli activation of SFBs offers the possibility to elucidate the regulatory effects of multiple mediators and to gain new insights into disease pathogenesis. Methods A GRN was therefore inferred from RA-SFBs treated with 4 different stimuli (IL-1 β, TNF- α, TGF- β, and PDGF-D). Data from time series microarray experiments (0, 1, 2, 4, 12 h; Affymetrix HG-U133 Plus 2.0) were batch-corrected applying ‘ComBat’, analyzed for differentially expressed genes over time with ‘Limma’, and used for the inference of a robust GRN with NetGenerator V2.0, a heuristic ordinary differential equation-based method with soft integration of prior knowledge. Results Using all genes differentially expressed over time in RA-SFBs for any stimulus, and selecting the genes belonging to the most significant gene ontology (GO) term, i.e., ‘cartilage development’, a dynamic, robust, moderately complex multi-stimuli GRN was generated with 24 genes and 57 edges in total, 31 of which were gene-to-gene edges. Prior literature-based knowledge derived from Pathway Studio or manual searches was reflected in the final network by 25/57 confirmed edges (44%). The model contained known network motifs crucial for dynamic cellular behavior, e.g., cross-talk among pathways, positive feed-back loops, and positive feed-forward motifs (including suppression of the transcriptional repressor OSR2 by all 4 stimuli. Conclusion A multi-stimuli GRN highly concordant with literature data was successfully generated by network inference from the gene expression of stimulated RA-SFBs. The GRN showed high reliability, since 10 predicted edges were independently validated by literature findings post network inference. The selected GO term ‘cartilage development’ contained a number of differentiation markers, growth factors, and transcription factors with potential relevance for RA. Finally, the model provided new insight into the response of RA-SFBs to multiple stimuli implicated in the pathogenesis of RA, in particular to the ‘novel’ potent growth factor PDGF-D.
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Affiliation(s)
- Peter Kupfer
- Leibnitz Institute for Natural Product Research and Infection Biology - Hans-Knöll-Institute, Beutenbergstr, 11a, 07745 Jena, Germany.
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Papel del factor de crecimiento transformador-beta (TGF-β) en la fisiopatología de la artritis reumatoide. ACTA ACUST UNITED AC 2014; 10:174-9. [DOI: 10.1016/j.reuma.2014.01.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 01/11/2014] [Accepted: 01/21/2014] [Indexed: 11/24/2022]
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Gonzalo-Gil E, Galindo-Izquierdo M. Role of Transforming Growth Factor-Beta (TGF) Beta in the Physiopathology of Rheumatoid Arthritis. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.reumae.2014.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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26
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Terabe F, Kitano M, Kawai M, Kuwahara Y, Hirano T, Arimitsu J, Hagihara K, Shima Y, Narazaki M, Tanaka T, Kawase I, Sano H, Ogata A. Imatinib mesylate inhibited rat adjuvant arthritis and PDGF-dependent growth of synovial fibroblast via interference with the Akt signaling pathway. Mod Rheumatol 2014. [DOI: 10.3109/s10165-009-0193-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gonzalo-Gil E, Criado G, Santiago B, Dotor J, Pablos JL, Galindo M. Transforming growth factor (TGF)-β signalling is increased in rheumatoid synovium but TGF-β blockade does not modify experimental arthritis. Clin Exp Immunol 2013; 174:245-55. [PMID: 23869798 DOI: 10.1111/cei.12179] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/12/2013] [Indexed: 12/22/2022] Open
Abstract
The aim of this study was to analyse the distribution of regulatory and inhibitory mothers against decapentaplegic homologue (Smad) proteins as markers of active transforming growth factor (TGF)-β signalling in rheumatoid arthritis (RA) synovial tissue and to investigate the effect of TGF-β blockade in the development and progression of collagen-induced arthritis. The expression of Smad proteins in synovial tissues from RA, osteoarthritic and healthy controls was analysed by immunohistochemistry. Arthritis was induced in DBA/1 mice by immunization with chicken type-II collagen (CII). TGF-β was blocked in vivo with the specific peptide p17 starting at the time of immunization or on the day of arthritis onset. T cell population frequencies and specific responses to CII were analysed. The expression of cytokines and transcription factors was quantified in spleen and joint samples. Statistical differences between groups were compared using the Mann-Whitney U-test or one-way analysis of variance (anova) using the Kruskal-Wallis test. p-Smad-2/3 and inhibitory Smad-7 expression were detected in RA and control tissues. In RA, most lymphoid infiltrating cells showed nuclear p-Smad-2/3 without Smad-7 expression. Treatment with TGF-β antagonist did not affect clinical severity, joint inflammation and cartilage damage in collagen-induced arthritis. Frequency of T cell subsets, mRNA levels of cytokines and transcription factors, specific proliferation to CII, serum interleukin (IL)-6 and anti-CII antibodies were comparable in p17 and phosphate-buffered saline (PBS)-treated groups. The pattern of Smad proteins expression demonstrates active TGF-β signalling in RA synovium. However, specific TGF-β blockade does not have a significant effect in the mice model of collagen-induced arthritis.
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Affiliation(s)
- E Gonzalo-Gil
- Hospital 12 de Octubre, 'i+12', Instituto de Investigación, Madrid, Spain
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Kikuta J, Ishii M. Osteoclast migration, differentiation and function: novel therapeutic targets for rheumatic diseases. Rheumatology (Oxford) 2012; 52:226-34. [PMID: 23024017 DOI: 10.1093/rheumatology/kes259] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
RA is a chronic autoimmune disease characterized by joint synovial inflammation and progressive cartilage/bone destruction. Although various kinds of RA drug have been developed worldwide, there are currently no established methods for preventing RA-associated bone destruction, the most severe outcome of this disease. One of the major pathogenic factors in arthritic bone destruction is the enhanced activity of osteoclasts at inflammatory sites. Osteoclasts are bone-resorbing giant polykaryons that differentiate from mononuclear macrophage/monocyte-lineage haematopoietic precursors. Upon stimulation by cytokines, such as M-CSF and RANK ligand, osteoclast precursor monocytes migrate and attach onto the bone surface (migration). They then fuse with each other to form giant cells (differentiation) and mediate bone resorption (function). In this review, we summarize the current understanding regarding the mechanisms underlying these three dynamic steps of osteoclastic activity and discuss novel lines of osteoclast-targeted therapies that will impact future treatment of RA.
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Affiliation(s)
- Junichi Kikuta
- Laboratory of Cellular Dynamics, Immunology Frontier Research Center, Osaka University, 3-1 Yamada-oka, Suita, Osaka, Japan
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Tu L, Li S, Fu Y, Yao R, Zhang Z, Yang S, Zeng X, Kuang N. The therapeutic effects of daphnetin in collagen-induced arthritis involve its regulation of Th17 cells. Int Immunopharmacol 2012; 13:417-23. [PMID: 22554834 DOI: 10.1016/j.intimp.2012.04.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Revised: 03/28/2012] [Accepted: 04/03/2012] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Daphne odora var. marginata (D. marginata), an aiophyllus arbuscular plant, is one of the traditional Chinese medicines used to treat rheumatoid arthritis. This study investigated the therapeutic effects and mechanisms of daphnetin, an active monomer ingredient derived from D. marginata, on collagen-induced arthritis (CIA) in rats. METHODS The effects of daphnetin on joint diseases were assessed by hematoxylin and eosin staining and radiographic and transmission electron microscopy. The protein and mRNA expression levels of T helper (Th)1/Th2/Th17-type cytokines in the spleen were determined by flow cytometry and quantitative real-time PCR. RESULTS Our results showed that daphnetin significantly reduced paw swelling and was nontoxic in vivo at the tested doses. Synovial hyperplasia, joint destruction and chondrocyte degeneration in CIA rats were suppressed by daphnetin. Daphnetin treatment also reduced the levels of Th1/Th2/Th17 type cytokines in spleen lymphocytes in CIA rats. Moreover, the expression of Foxp3, which can down-regulate the activity of Th17 cells, was significantly increased in the daphnetin-treated groups. CONCLUSIONS These results suggest that daphnetin may have therapeutic effects in down-regulating Th17-type responses in CIA rats. The beneficial effects of daphnetin on CIA may be related to its inhibition of Th17 cell priming and activation.
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Affiliation(s)
- Lina Tu
- Department of Immunology, Medical College of Nanchang University, 461 Nanchang Bayi Road, Nanchang of Jiangxi Province 330006, China
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Chen G, Deng C, Li YP. TGF-β and BMP signaling in osteoblast differentiation and bone formation. Int J Biol Sci 2012; 8:272-88. [PMID: 22298955 PMCID: PMC3269610 DOI: 10.7150/ijbs.2929] [Citation(s) in RCA: 1185] [Impact Index Per Article: 98.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Accepted: 12/29/2011] [Indexed: 12/11/2022] Open
Abstract
Transforming growth factor-beta (TGF-β)/bone morphogenic protein (BMP) signaling is involved in a vast majority of cellular processes and is fundamentally important throughout life. TGF-β/BMPs have widely recognized roles in bone formation during mammalian development and exhibit versatile regulatory functions in the body. Signaling transduction by TGF-β/BMPs is specifically through both canonical Smad-dependent pathways (TGF-β/BMP ligands, receptors and Smads) and non-canonical Smad-independent signaling pathway (e.g. p38 mitogen-activated protein kinase pathway, MAPK). Following TGF-β/BMP induction, both the Smad and p38 MAPK pathways converge at the Runx2 gene to control mesenchymal precursor cell differentiation. The coordinated activity of Runx2 and TGF-β/BMP-activated Smads is critical for formation of the skeleton. Recent advances in molecular and genetic studies using gene targeting in mice enable a better understanding of TGF-β/BMP signaling in bone and in the signaling networks underlying osteoblast differentiation and bone formation. This review summarizes the recent advances in our understanding of TGF-β/BMP signaling in bone from studies of genetic mouse models and human diseases caused by the disruption of TGF-β/BMP signaling. This review also highlights the different modes of cross-talk between TGF-β/BMP signaling and the signaling pathways of MAPK, Wnt, Hedgehog, Notch, and FGF in osteoblast differentiation and bone formation.
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Affiliation(s)
- Guiqian Chen
- Institute of Genetics, Life Science College, Zhejiang University, 388 Yuhang Road, Hangzhou 310058, China
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Ouyang Y, Miyata M, Hatsushika K, Ohnuma Y, Katoh R, Ogawa H, Okumura K, Masuyama K, Nakao A. TGF-beta signaling may play a role in the development of goblet cell hyperplasia in a mouse model of allergic rhinitis. Allergol Int 2010; 59:313-319. [PMID: 20495338 DOI: 10.2332/allergolint.10-sc-0172] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Accepted: 02/05/2010] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Transforming growth factor-beta (TGF-beta) levels are elevated in the nasal mucosa in allergic rhinitis. However, because TGF-beta is secreted extracellulary in latent complexes, it remains unclear whether the local TGF-beta expression actually drives active signaling and affects the pathophysiology of allergic rhinitis. The objective of this study is to investigate whether TGF-beta signaling is activated in allergic rhinitis and plays a role in the pathophysiology of allergic rhinitis. METHODS An ovabumin (OVA)-sensitized and -nasally challenged mouse model of allergic rhinitis was established and phosphorylation of Smad2 in the nasal mucosa was examined by immunohistochemistry. In addition, the effects of the pharmacological inhibition of endogenous TGF-beta signaling on the allergic rhinitis model were histologically examined. Furthermore, phosphorylation of Smad2 in the nasal mucosa samples obtained from patients with allergic rhinitis was also evaluated. RESULTS In the mouse model of allergic rhinitis, OVA challenge induced phosphorylation of Smad2 predominantly in epithelial cells in the nasal mucosa. In addition, the administration of an inhibitor of TGF-beta type I receptor kinase activity during OVA challenge suppressed goblet cell hyperplasia in the nasal mucosa. Furthermore, phosphorylated Smad2 expression increased in nasal epithelial cells in patients with allergic rhinitis. CONCLUSIONS These results suggest that TGF-beta signaling is activated in epithelial cells in the nasal mucosa in allergic rhinitis and may contribute to the development of goblet cell hyperplasia.
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MESH Headings
- Animals
- Cell Proliferation/drug effects
- Disease Models, Animal
- Goblet Cells/drug effects
- Goblet Cells/immunology
- Goblet Cells/metabolism
- Goblet Cells/pathology
- Humans
- Hyperplasia
- Immunization
- Mice
- Nasal Mucosa/drug effects
- Nasal Mucosa/immunology
- Nasal Mucosa/metabolism
- Nasal Mucosa/pathology
- Ovalbumin/administration & dosage
- Ovalbumin/immunology
- Phosphorylation
- Protein Serine-Threonine Kinases/antagonists & inhibitors
- Pyrazoles/pharmacology
- Quinolines/pharmacology
- Receptor, Transforming Growth Factor-beta Type I
- Receptors, Transforming Growth Factor beta/antagonists & inhibitors
- Rhinitis, Allergic, Perennial/immunology
- Rhinitis, Allergic, Perennial/metabolism
- Rhinitis, Allergic, Seasonal/immunology
- Rhinitis, Allergic, Seasonal/metabolism
- Signal Transduction/drug effects
- Smad2 Protein/metabolism
- Transforming Growth Factor beta/genetics
- Transforming Growth Factor beta/metabolism
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Affiliation(s)
- Yuhui Ouyang
- Department of Immunology,; Department of Otorhinolaryngology, Head and Neck Surgery
| | - Masanori Miyata
- Department of Immunology,; Department of Otorhinolaryngology, Head and Neck Surgery
| | - Kyosuke Hatsushika
- Department of Immunology,; Department of Otorhinolaryngology, Head and Neck Surgery
| | | | - Ryohei Katoh
- Department of Human Pathology, University of Yamanashi Faculty of Medicine, Yamanashi
| | - Hideoki Ogawa
- Atopy Research Center, Juntendo University School of Medicine, Tokyo, Japan
| | - Ko Okumura
- Atopy Research Center, Juntendo University School of Medicine, Tokyo, Japan
| | | | - Atsuhito Nakao
- Department of Immunology,; Atopy Research Center, Juntendo University School of Medicine, Tokyo, Japan..
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Terabe F, Kitano M, Kawai M, Kuwahara Y, Hirano T, Arimitsu J, Hagihara K, Shima Y, Narazaki M, Tanaka T, Kawase I, Sano H, Ogata A. Imatinib mesylate inhibited rat adjuvant arthritis and PDGF-dependent growth of synovial fibroblast via interference with the Akt signaling pathway. Mod Rheumatol 2009; 19:522-9. [PMID: 19568828 DOI: 10.1007/s10165-009-0193-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2008] [Accepted: 05/18/2009] [Indexed: 11/25/2022]
Abstract
Overgrowth of the synovium plays an important role in the pathogenesis of rheumatoid arthritis (RA). Platelet-derived growth factor (PDGF) is one of the most potent mitogenic factors of synovial cells, and imatinib mesylate (imatinib) is a specific inhibitor of the PDGF receptor tyrosine kinase. The aim of this study was to elucidate the anti-rheumatic activity of imatinib. The in vivo effects of imatinib were assessed by evaluating the sequential manifestation of adjuvant-induced arthritis in rats using paw volume and clinical scores. Imatinib was found to inhibit rat adjuvant-induced arthritis, but the inhibitory effects were incomplete. To confirm the mechanism of anti-rheumatic-activity of imatinib, we assessed the in vitro effects of imatinib on the proliferation of RA synovial fibroblast-like cells (RASFs) using a MTT assay. Intracellular signaling of PDGF was evaluated by Western blot analysis. Platelet-derived growth factor was found to induce a significant proliferation of RASFs, while imatinib inhibited PDGF-induced proliferation of RASF. Imatinib also inhibited PDGF-induced phosphorylation of the PDGF receptor and Akt, whereas constitutive activated extracellular signal-regulated kinase was not inhibited by imatinib. In contrast, imatinib did not inhibit transforming growth factor beta- and basic fibroblast growth factor-induced proliferation of RASF. Oral administration of imatinib ameliorated adjuvant-induced arthritis in rats, and it inhibited PDGF-induced RASF proliferation through disruption of the PDGF-R to Akt kinase signaling pathway. Because imatinib cannot inhibit the non-PDGF-dependent proliferation of RASFs, the anti-rheumatic effect of imatinib may be incomplete. The development of inhibitors of RASF proliferation may lead to the successful treatment of RA.
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Affiliation(s)
- Fumitaka Terabe
- Department of Respiratory Medicine, Allergy and Rheumatic Disease, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
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Pohlers D, Brenmoehl J, Löffler I, Müller CK, Leipner C, Schultze-Mosgau S, Stallmach A, Kinne RW, Wolf G. TGF-beta and fibrosis in different organs - molecular pathway imprints. Biochim Biophys Acta Mol Basis Dis 2009; 1792:746-56. [PMID: 19539753 DOI: 10.1016/j.bbadis.2009.06.004] [Citation(s) in RCA: 454] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Revised: 06/11/2009] [Accepted: 06/12/2009] [Indexed: 12/25/2022]
Abstract
The action of transforming-growth-factor (TGF)-beta following inflammatory responses is characterized by increased production of extracellular matrix (ECM) components, as well as mesenchymal cell proliferation, migration, and accumulation. Thus, TGF-beta is important for the induction of fibrosis often associated with chronic phases of inflammatory diseases. This common feature of TGF-related pathologies is observed in many different organs. Therefore, in addition to the description of the common TGF-beta-pathway, this review focuses on TGF-beta-related pathogenetic effects in different pathologies/organs, i. e., arthritis, diabetic nephropathy, colitis/Crohn's disease, radiation-induced fibrosis, and myocarditis (including their similarities and dissimilarities). However, TGF-beta exhibits both exacerbating and ameliorating features, depending on the phase of disease and the site of action. Due to its central role in severe fibrotic diseases, TGF-beta nevertheless remains an attractive therapeutic target, if targeted locally and during the fibrotic phase of disease.
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Affiliation(s)
- Dirk Pohlers
- Experimental Rheumatology Unit, Department of Orthopedics, Waldkrankenhaus Rudolf Elle Eisenberg, University Hospital Jena, Friedrich Schiller University, Jena, Germany
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Bamborough P, Drewry D, Harper G, Smith GK, Schneider K. Assessment of chemical coverage of kinome space and its implications for kinase drug discovery. J Med Chem 2009; 51:7898-914. [PMID: 19035792 DOI: 10.1021/jm8011036] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
More than 500 compounds chosen to represent kinase inhibitor space have been screened against a panel of over 200 protein kinases. Significant results include the identification of hits against new kinases including PIM1 and MPSK1, and the expansion of the inhibition profiles of several literature compounds. A detailed analysis of the data through the use of affinity fingerprints has produced findings with implications for biological target selection, the choice of tool compounds for target validation, and lead discovery and optimization. In a detailed examination of the tyrosine kinases, interesting relationships have been found between targets and compounds. Taken together, these results show how broad cross-profiling can provide important insights to assist kinase drug discovery.
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Affiliation(s)
- Paul Bamborough
- Molecular Discovery Research, GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK.
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Hase H, Kanno Y, Kojima H, Sakurai D, Kobata T. Coculture of osteoclast precursors with rheumatoid synovial fibroblasts induces osteoclastogenesis via transforming growth factor beta-mediated down-regulation of osteoprotegerin. ACTA ACUST UNITED AC 2009; 58:3356-65. [PMID: 18975335 DOI: 10.1002/art.23971] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The mechanisms of osteoclast maturation and the role of rheumatoid arthritis (RA) synovial fibroblasts in the control of osteoclastogenesis remain unclear. The purpose of this study was to determine the humoral factors that influence osteoclast differentiation resulting from mutual interactions between osteoclast progenitor cells and synovial fibroblasts. METHODS The cloned mouse macrophage cell line RAW 264.7 or isolated human CD14+ monocytes were cocultured with RA or osteoarthritis (OA) synovial fibroblasts in the presence of RANKL. Osteoclasts were visualized by staining for tartrate-resistant acid phosphatase (TRAP), and their functions were evaluated by bone resorption assay. Transforming growth factor beta (TGFbeta) and osteoprotegerin (OPG) levels were measured by enzyme-linked immunosorbent assay. Expression of pSmad2 and Smad7 was analyzed by Western blotting. RESULTS RANKL-mediated osteoclast formation was observed in cocultures of RAW cells with RA synovial cells, but not with OA synovial cells. This formation was inhibited by TGFbeta receptor kinase inhibitor or neutralizing TGFbeta antibody. Human CD14+ monocytes showed the same results with RAW 264.7, and bone resorption activity was consistent with osteoclast formation. RA synovial fibroblasts produced TGFbeta in response to cell-cell contact with RAW cells in a RANKL-dependent manner. TGFbeta reduced OPG production by RA synovial fibroblasts, but dose-dependently increased OPG secretion in OA synovial fibroblasts. TGFbeta decreased the expression of pSmad2 and increased the expression of Smad7 in RA synovial fibroblasts, but not OA synovial fibroblasts. CONCLUSION Suppression of OPG production by down-regulation of TGFbeta/Smad2 signaling may contribute to RANKL-mediated osteoclastogenesis from RA synovial fibroblasts.
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Affiliation(s)
- Hidenori Hase
- Dokkyo Medical University School of Medicine, Mibu, Tochigi, Japan.
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Ozawa T, Miyata M, Nishimura M, Ando T, Ouyang Y, Ohba T, Shimokawa N, Ohnuma Y, Katoh R, Ogawa H, Nakao A. Transforming growth factor-beta activity in commercially available pasteurized cow milk provides protection against inflammation in mice. J Nutr 2009; 139:69-75. [PMID: 19056655 DOI: 10.3945/jn.108.092528] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Cow milk contains a large amount of an immunoregulatory cytokine, transforming growth factor-beta (TGFbeta). The present study investigated whether commercially available pasteurized cow milk retains TGFbeta activity both in vitro and in vivo. Some commercial cow milk increased TGFbeta/Smad-responsive reporter activity and induced Smad2 phosphorylation and the transcription of the TGFbeta/Smad target genes TGFbeta itself and Smad7 in vitro. Mice treated orally with 500 microL of cow milk containing TGFbeta (3 microg/L) daily for 2 wk had increased phosphorylation of Smad2 and TGFbeta and Smad7 mRNA expression in the intestine. These mice also had significantly greater serum TGFbeta concentrations than the mice treated orally with PBS. Furthermore, oral administration of 500 microL of cow milk containing TGFbeta (3 microg/L) daily for 2 wk before the induction of dextran sodium sulfate colitis and lipopolysaccharide-induced endotoxemia ameliorated tissue damage and mortality, respectively, in mice. These in vivo effects of cow milk were abrogated by the simultaneous administration of TGFbeta type I receptor kinase inhibitor with the cow milk, and they were not observed after the oral administration of cow's milk containing little TGFbeta. In humans, 1 oral challenge of 10 mL/kg cow milk containing TGFbeta (3 microg/L) increased the plasma TGFbeta concentrations at 4 h after the challenge. Thus, some commercially available pasteurized cow milk retains TGFbeta activity, which may be able to provide protection against experimental colitis and endotoxemia associated with increased intestinal and circulating TGFbeta levels.
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Affiliation(s)
- Tetsuro Ozawa
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
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Rowley MJ, Nandakumar KS, Holmdahl R. The role of collagen antibodies in mediating arthritis. Mod Rheumatol 2008; 18:429-41. [PMID: 18521704 DOI: 10.1007/s10165-008-0080-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Accepted: 04/07/2008] [Indexed: 11/24/2022]
Abstract
This review examines evidence that rheumatoid arthritis (RA) depends on autoimmunity to articular collagen, and mechanisms whereby autoantibodies to type II collagen contribute to disease development. Three major autoantigenic reactants have been identified in RA; the corresponding autoantibodies are rheumatoid factor (RF), antibodies to citrullinated peptide antigens (ACPA), citrullinated peptides (anti-CCP), and anti-type II collagen (anti-CII). Both RF and ACPA are well-validated and predictive markers of severe erosive RA, but cannot be linked to pathogenesis. By contrast, in various animal species immunized with CII there occurs an erosive inflammatory arthritis resembling that seen in human RA, together with antibodies to CII with an epitope specificity similar to that in RA. We discuss the well-known role of immune complexes in the induction of inflammation within the joint, and present recent data showing, additionally, that antibodies to CII cause direct damage to cartilage in vitro. The close resemblances between human RA and collagen-induced arthritis in animals suggest that autoimmunity, and particularly autoantibodies to CII, are important for both the initiation and perpetuation of RA in a dual manner: as contributors to the inflammation associated with immune complex deposition, and as agents with direct degradative effects on cartilage integrity and its repair.
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Affiliation(s)
- Merrill J Rowley
- Department of Biochemistry and Molecular Biology, Monash University, Wellington Rd, Clayton, VIC, 3800, Australia.
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38
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Ohno H, Uemura Y, Murooka H, Takanashi H, Tokieda T, Ohzeki Y, Kubo K, Serizawa I. The orally-active and selective c-Fms tyrosine kinase inhibitor Ki20227 inhibits disease progression in a collagen-induced arthritis mouse model. Eur J Immunol 2008; 38:283-91. [PMID: 18085662 DOI: 10.1002/eji.200737199] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Macrophage colony-stimulating factor (M-CSF) is important in the development of macrophages and osteoclasts. Previous studies have also shown that CD11b(+) myeloblasts and osteoclasts play key roles during inflammation and bone destruction in arthritic lesions. In this study, we investigated whether N-{4-[(6,7-dimethoxy-4-quinolyl)oxy]-2-methoxyphenyl}-N'-[1-(1,3-thiazole-2-yl)ethyl] urea (Ki20227), an inhibitor of the M-CSF receptor (c-Fms), suppressed disease progression in a type II collagen (CII)-induced arthritis (CIA) mouse model. We found that Ki20227 inhibited M-CSF-dependent reactions, such as lipopolysaccharide-induced tumor necrosis factor-alpha production, which were enhanced by M-CSF in vitro. Oral administration of Ki20227 in vivo prevented inflammatory cell infiltration and bone destruction, and consequently suppressed disease progression. In addition, the number of CD11b(+), Gr-1(+), and Ly-6G(+) cells in the spleen decreased in the Ki20227-treated mice, and the CII-induced cytokine production in splenocytes isolated from the Ki20227-treated arthritic mice was also reduced. These observations indicate that Ki20227 might exert its therapeutic effects in the CIA mouse model by suppressing the M-CSF-dependent accumulation of both inflammatory and osteoclast cells, as well as by inhibiting inflammatory cytokine production. Hence, inhibitors of the c-Fms tyrosine kinase might act as anti-inflammatory or anti-osteolytic agents against arthritis.
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Affiliation(s)
- Hiroaki Ohno
- Discovery Research Laboratories, Research Division, Kirin Pharma Co., Ltd., Gunma, Japan.
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39
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Vincelette J, Xu Y, Zhang LN, Schaefer CJ, Vergona R, Sullivan ME, Hampton TG, Wang YXJ. Gait analysis in a murine model of collagen-induced arthritis. Arthritis Res Ther 2008; 9:R123. [PMID: 18036238 PMCID: PMC2246242 DOI: 10.1186/ar2331] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2007] [Revised: 11/04/2007] [Accepted: 11/24/2007] [Indexed: 11/10/2022] Open
Abstract
Murine collagen-induced arthritis (CIA) has become a valuable animal model for elucidating pathogenic mechanisms and evaluating therapeutic effects for rheumatoid arthritis. Recent advances in digital imaging and computer technology have enabled gait analysis to develop into a powerful tool for objectively detecting functional deficits in human and animal models. The present study explored the use of non-invasive video-capture gait analysis in the evaluation of a murine CIA model. CIA was induced in 45 female DBA/1LacJ mice (8 to 10 weeks old) by immunization with lyophilized bovine articular type II collagen. Gait parameters were determined by ventral plane videography and were correlated to traditional arthritis clinical scores. Our results showed that increases in clinical scores that measure the severity of CIA corresponded to changes in multiple gait parameters that reflect both morphologic (increases in paw area) and functional (increase in stride frequency, decrease in stride length, hind-limb paw placement angle, as well as stride, stance, and braking times) deficits. Our work indicated that the non-invasive video-capture device may be used as a simple and objective data acquisition system for quantifying gait disturbances in CIA mice for the investigation of mechanisms and the evaluation of therapeutic agents.
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Affiliation(s)
- Jon Vincelette
- Bayer HealthCare Pharmaceuticals, 800 Dwight Way, Berkeley, CA 94701, USA.
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40
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Müller-Ladner U, Ospelt C, Gay S, Distler O, Pap T. Cells of the synovium in rheumatoid arthritis. Synovial fibroblasts. Arthritis Res Ther 2008; 9:223. [PMID: 18177509 PMCID: PMC2246247 DOI: 10.1186/ar2337] [Citation(s) in RCA: 163] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
For some time synovial fibroblasts have been regarded simply as innocent synovial cells, mainly responsible for synovial homeostasis. During the past decade, however, a body of evidence has accumulated illustrating that rheumatoid arthritis synovial fibroblasts (RASFs) are active drivers of joint destruction in rheumatoid arthritis. Details regarding the intracellular signalling cascades that result in long-term activation and synthesis of proinflammatory molecules and matrix-degrading enzymes by RASFs have been analyzed. Molecular, cellular and animal studies have identified various interactions with other synovial and inflammatory cells. This expanded knowledge of the distinct role played by RASFs in the pathophysiology of rheumatoid arthritis has moved these fascinating cells to the fore, and work to identify targeted therapies to inhibit their joint destructive potential is underway.
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Affiliation(s)
- Ulf Müller-Ladner
- Justus-Liebig-University Giessen, Department of Rheumatology and Clinical Immunology, Kerckhoff-Clinic Bad Nauheim, Benekestrasse, D-61231 Bad Nauheim, Germany.
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41
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Ao J, Feng H, Xia F. Transforming Growth Factor and Nuclear Factor Kappa B Mediated Prophylactic Cardioprotection by Total Flavonoids of Fructus Chorspondiatis in Myocardial Ischemia. Cardiovasc Drugs Ther 2007; 21:235-41. [PMID: 17674171 DOI: 10.1007/s10557-007-6042-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Chorspomias axillaries Batt et Hill, a well-known Chinese herb, has been used in clinical treatment of angina pectoris for hundreds of years, but its effective components and intrinsic cardioprotective mechanism are still beyond us. OBJECTIVES AND METHODS In this study, we extracted Total Flavonoids of Fructus Chorspondiatis (TFFC), a potential effective component from Chorspomias axillaries Batt et Hill to investigate its effect on myocardial ischemia induced by isoproteronol in rat and elucidated its probable mechanism. RESULTS The results showed that prophylactically ;;intragastrical administration of TFFC at the dose of 200 mg/kg body weight effectively suppressed the variation of J points in electrocardiogram (0.211 +/- 0.059( )mV versus 0.277 +/- 0.046( )mV, p < 0.05) and inhibited the upregulated serum level of creatine kinase (754 +/- 114( )U/l versus 1,112 +/- 239( )U/l, p < 0.05), creatine kinase -MB (700 +/- 95( )U/l versus 1,012 +/- 252( )U/l, p < 0.05) and lactate dehydrogenase (1,174 +/- 200( )U/l versus 2,025 +/- 975( )U/l, p < 0.05) in myocardial ischemia, revealing its cardioprotective effect. It increased a potent tissue protective polypeptide, transforming growth factor beta(1) (TGF-beta(1)) level as well as its receptors TbetaRI and TbetaRII(p < 0.05) and significantly inhibited the expression of a redox-sensitive transcription factor, nuclear factor kappa B (NF-kappaB). CONCLUSIONS These data demonstrated that TFFC at the dose of 200 mg/kg body weight exerts prophylactically cardioprotective effect during ischemia injury. Part of its cardioprotective mechanism may relate to induction of TGF-beta(1) to competitively inhibit NF-kappaB signaling pathway. Prophylactically exogenous administration with the component may serve as a novel therapeutic strategy for ischemic cardiovascular diseases.
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Affiliation(s)
- Jienan Ao
- Department of Integrative Medicine, Medical College, Jinan University, Huang Pu Da Dao Xi 601#, Guangzhou 510632, People's Republic of China.
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