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Zhang J, Shi X, Wu Z. A Caspase-3 responsive nanoemulsion for targeted treatment of rheumatoid arthritis through dual modulation of inflammation and mitochondrial dysfunction. Colloids Surf B Biointerfaces 2025; 251:114629. [PMID: 40090172 DOI: 10.1016/j.colsurfb.2025.114629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2025] [Revised: 03/04/2025] [Accepted: 03/07/2025] [Indexed: 03/18/2025]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by joint inflammation, pain, and progressive joint damage. Current treatments, while effective, are limited by their potential side effects, particularly in long-term use. This study introduces a novel nanoemulsion-based therapeutic approach combining rapamycin, an mTOR inhibitor, with SS31, a mitochondrial-targeting antioxidant peptide. The rapamycin-SS31 conjugate (RS31) is encapsulated within a nanoemulsion (RS31@NEs) designed to selectively release its components in response to elevated Caspase-3 levels, prevalent in inflamed joints. In vitro and in vivo studies using zymosan-induced arthritis (ZIA) and collagen-induced arthritis (CIA) mouse models demonstrated that RS31@NEs effectively reduced pro-inflammatory cytokines, mitigated oxidative stress, and improved immune modulation by enhancing regulatory T and B cell functions. These findings highlight RS31@NEs as a promising dual-action therapy for RA, combining anti-inflammatory and mitochondrial protective effects while minimizing systemic toxicity.
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Affiliation(s)
- Jia Zhang
- Department of hematology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China
| | - Xianbao Shi
- Department of Pharmacy, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zhuo Wu
- Outpatient Department, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China.
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Yakovlev AA, Nikitina TN, Kostik MM. Juvenile Idiopathic Arthritis Associated Uveitis. Current Status: Epidemiology, Pathogenesis, and Clinical Issues. CURRENT PEDIATRICS 2025; 23:424-437. [DOI: 10.15690/vsp.v23i6.2832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2025]
Abstract
Uveitis is the most common extraarticular manifestation of juvenile idiopathic arthritis (JIA) and with no adequate management results in serious eye complications such as cataracts, secondary glaucoma, retinal detachment, and linear corneal dystrophy. This pathology reduces patients’ quality of life and can lead to significant social and economic losses, both due to direct health costs and due to disability (total loss of sight). Childhood uveitis accounts for approximately 5–10% of all uveitis in global population, however their prevalence has been increasing in recent years. The etiology and pathogenesis of JIA-associated uveitis remains poorly studied despite the well-known correlation of uveitis with JIA. Uveitis in children is difficult to diagnose in routine pediatric practice, both due to its course (asymptomatic/mild), and due to challenging verbal communication and examination (young children), which poses significant clinical problem. This article presents current data on the epidemiology, pathogenesis, clinical manifestations, and terminology of JIA-associated uveitis.
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Yoshida H, Magi M, Tamai H, Kikuchi J, Yoshimoto K, Otomo K, Matsumoto Y, Noguchi-Sasaki M, Takeuchi T, Kaneko Y. Effects of interleukin-6 signal inhibition on Treg subpopulations and association of Tregs with clinical outcomes in rheumatoid arthritis. Rheumatology (Oxford) 2024; 63:2515-2524. [PMID: 38530780 PMCID: PMC11371379 DOI: 10.1093/rheumatology/keae196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/15/2024] [Accepted: 03/17/2024] [Indexed: 03/28/2024] Open
Abstract
OBJECTIVES Anti-IL-6 receptor antibodies are clinically efficacious in the management of RA with an associated increase in Tregs; however, the role of functional Treg subsets has yet to be clarified. This study aimed to evaluate how functional Treg subsets are altered by IL-6 receptor blockade and to analyse the relationship between these Treg subsets and the clinical outcome of RA. METHODS We collected frozen peripheral blood mononuclear cells (PBMCs) from 40 patients with RA who started tocilizumab (TCZ) with or without MTX and 11 healthy controls (HCs). We fractionated Tregs with flow cytometry based on markers of phenotype and function and measured the proportions of detailed Treg subsets sequentially from baseline to week 52. RESULTS The proportions of resting Tregs (rTregs) and rTregs+activated Tregs (aTregs) were significantly lower in RA patients at baseline than in HCs. The proportions of all those CD127low Tregs, rTregs, aTregs and rTregs+aTregs were significantly increased with TCZ treatment. In patients treated with TCZ without MTX, rTreg were increased. Patients with an increase in the proportion of rTregs at week 12 had significantly less arthritis flares during the observation period. CONCLUSIONS Blocking the IL-6 receptor with TCZ increased the proportion of rTregs, a functional Treg subpopulation. Patients with an early increase in rTregs showed a favourable treatment course and this increase in rTregs may reflect molecular remission induced by IL-6 signal inhibition.
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Affiliation(s)
- Hiroto Yoshida
- Product Research Department, Chugai Pharmaceutical Co. Ltd, Kanagawa, Japan
| | - Mayu Magi
- Product Research Department, Chugai Pharmaceutical Co. Ltd, Kanagawa, Japan
| | - Hiroya Tamai
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Jun Kikuchi
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Keiko Yoshimoto
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kotaro Otomo
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | | | | | - Tsutomu Takeuchi
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yuko Kaneko
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
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Kozlowska J, Humphryes-Kirilov N, Pavlovets A, Connolly M, Kuncheva Z, Horner J, Manso AS, Murray C, Fox JC, McCarthy A. Unveiling new genetic insights in rheumatoid arthritis for drug discovery through Taxonomy3 analysis. Sci Rep 2024; 14:14153. [PMID: 38898196 PMCID: PMC11186831 DOI: 10.1038/s41598-024-64970-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 06/14/2024] [Indexed: 06/21/2024] Open
Abstract
Genetic support for a drug target has been shown to increase the probability of success in drug development, with the potential to reduce attrition in the pharmaceutical industry alongside discovering novel therapeutic targets. It is therefore important to maximise the detection of genetic associations that affect disease susceptibility. Conventional statistical methods such as genome-wide association studies (GWAS) only identify some of the genetic contribution to disease, so novel analytical approaches are required to extract additional insights. C4X Discovery has developed Taxonomy3, a unique method for analysing genetic datasets based on mathematics that is novel in drug discovery. When applied to a previously published rheumatoid arthritis GWAS dataset, Taxonomy3 identified many additional novel genetic signals associated with this autoimmune disease. Follow-up studies using tool compounds support the utility of the method in identifying novel biology and tractable drug targets with genetic support for further investigation.
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Affiliation(s)
- Justyna Kozlowska
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK.
| | | | - Anastasia Pavlovets
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK
| | - Martin Connolly
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK
| | - Zhana Kuncheva
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK
| | - Jonathan Horner
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK
| | - Ana Sousa Manso
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK
| | - Clare Murray
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK
| | - J Craig Fox
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK
| | - Alun McCarthy
- C4X Discovery Ltd, Manchester One, 53 Portland Street, Manchester, M1 3LD, UK
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Weisenfeld D, Zhang F, Donlin L, Jonsson AH, Apruzzese W, Campbell D, Accelerating Medicines Partnership Program: RA/SLE Network, Rao DA, Wei K, Holers VM, Gravallese E, Moreland L, Goodman S, Brenner M, Raychaudhuri S, Filer A, Anolik J, Bykerk V, Liao KP. Associations Between Rheumatoid Arthritis Clinical Factors and Synovial Cell Types and States. Arthritis Rheumatol 2024; 76:356-362. [PMID: 37791989 PMCID: PMC10922423 DOI: 10.1002/art.42726] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 08/25/2023] [Accepted: 09/19/2023] [Indexed: 10/05/2023]
Abstract
OBJECTIVE Recent studies have uncovered diverse cell types and states in the rheumatoid arthritis (RA) synovium; however, limited data exist correlating these findings with patient-level clinical information. Using the largest cohort to date with clinical and multicell data, we determined associations between RA clinical factors with cell types and states in the RA synovium. METHODS The Accelerated Medicines Partnership Rheumatoid Arthritis study recruited patients with active RA who were not receiving disease-modifying antirheumatic drugs (DMARDs) or who had an inadequate response to methotrexate (MTX) or tumor necrosis factor inhibitors. RA clinical factors were systematically collected. Biopsies were performed on an inflamed joint, and tissue were disaggregated and processed with a cellular indexing of transcriptomes and epitopes sequencing pipeline from which the following cell type percentages and cell type abundance phenotypes (CTAPs) were derived: endothelial, fibroblast, and myeloid (EFM); fibroblasts; myeloid; T and B cells; T cells and fibroblasts (TF); and T and myeloid cells. Correlations were measured between RA clinical factors, cell type percentage, and CTAPs. RESULTS We studied 72 patients (mean age 57 years, 75% women, 83% seropositive, mean RA duration 6.6 years, mean Disease Activity Score-28 C-reactive Protein 3 [DAS28-CRP3] score 4.8). Higher DAS28-CRP3 correlated with a higher T cell percentage (P < 0.01). Those receiving MTX and not a biologic DMARD (bDMARD) had a higher percentage of B cells versus those receiving no DMARDs (P < 0.01). Most of those receiving bDMARDs were categorized as EFM (57%), whereas none were TF. No significant difference was observed across CTAPs for age, sex, RA disease duration, or DAS28-CRP3. CONCLUSION In this comprehensive screen of clinical factors, we observed differential associations between DMARDs and cell phenotypes, suggesting that RA therapies, more than other clinical factors, may impact cell type/state in the synovium and ultimately influence response to subsequent therapies.
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Affiliation(s)
- Dana Weisenfeld
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Fan Zhang
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, USA
- Center for Health Artificial Intelligence, University of Colorado School of Medicine, Aurora, CO, USA
- Center for Data Sciences, Brigham and Women’s Hospital, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Laura Donlin
- Weill Cornell Medicine, New York, NY, USA
- Hospital for Special Surgery, New York, NY, USA
| | - Anna Helena Jonsson
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - William Apruzzese
- Accelerating Medicines Partnership Program: Rheumatoid Arthritis and Systemic Lupus Erythematosus (AMP RA/SLE) Network
| | - Debbie Campbell
- Division of Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, USA
| | | | - Deepak A. Rao
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Kevin Wei
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - V. Michael Holers
- Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Ellen Gravallese
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Larry Moreland
- Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, USA
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Susan Goodman
- Weill Cornell Medicine, New York, NY, USA
- Hospital for Special Surgery, New York, NY, USA
| | - Michael Brenner
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Soumya Raychaudhuri
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Center for Data Sciences, Brigham and Women’s Hospital, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Andrew Filer
- Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Queen Elizabeth Hospital, Birmingham, UK
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research and the Research into Inflammatory Arthritis Centre Versus Arthritis, University of Birmingham, Birmingham, UK
| | - Jennifer Anolik
- Division of Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, USA
| | - Vivian Bykerk
- Weill Cornell Medicine, New York, NY, USA
- Hospital for Special Surgery, New York, NY, USA
| | - Katherine P. Liao
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA
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Chakraborty S, Gupta R, Kubatzky KF, Kar S, Kraus FV, Souto-Carneiro MM, Lorenz HM, Kumar P, Kumar V, Mitra DK. Negative impact of Interleukin-9 on synovial regulatory T cells in rheumatoid arthritis. Clin Immunol 2023; 257:109814. [PMID: 37879380 PMCID: PMC7615987 DOI: 10.1016/j.clim.2023.109814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/05/2023] [Accepted: 10/21/2023] [Indexed: 10/27/2023]
Abstract
In Rheumatoid Arthritis (RA), regulatory T cells (Tregs) have been found to be enriched in the synovial fluid. Despite their accumulation, they are unable to suppress synovial inflammation. Recently, we showed the synovial enrichment of interleukin-9 (IL-9) producing helper T cells and its positive correlation with disease activity. Therefore, we investigated the impact of IL-9 on synovial Tregs in RA. Here, we confirmed high synovial Tregs in RA patients, however these cells were functionally impaired in terms of suppressive cytokine production (IL-10 and TGF-β). Abrogating IL-9/ IL-9 receptor interaction could restore the suppressive cytokine production of synovial Tregs and reduce the synovial inflammatory T cells producing IFN-γ, TNF-α, IL-17. However, blocking these inflammatory cytokines failed to show any effect on IL-9 producing T cells, highlighting IL-9's hierarchy in the inflammatory network. Thus, we propose that blocking IL-9 might dampen synovial inflammation by restoring Tregs function and inhibiting inflammatory T cells.
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Affiliation(s)
- Sushmita Chakraborty
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi 110029, India; Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University, Im Neuenheimer Feld 324, Heidelberg 69120, Germany
| | - Ranjan Gupta
- Department of Rheumatology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Katharina F Kubatzky
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University, Im Neuenheimer Feld 324, Heidelberg 69120, Germany
| | - Santanu Kar
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Franziska V Kraus
- Division of Rheumatology, Department of Internal Medicine 5 Hematology-Oncology-Rheumatology, Heidelberg University Hospital, Im Neuenheimer Feld 410, Heidelberg 69120, Germany
| | - M Margarida Souto-Carneiro
- Division of Rheumatology, Department of Internal Medicine 5 Hematology-Oncology-Rheumatology, Heidelberg University Hospital, Im Neuenheimer Feld 410, Heidelberg 69120, Germany
| | - Hanns-Martin Lorenz
- Division of Rheumatology, Department of Internal Medicine 5 Hematology-Oncology-Rheumatology, Heidelberg University Hospital, Im Neuenheimer Feld 410, Heidelberg 69120, Germany
| | - Pankaj Kumar
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Vijay Kumar
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Dipendra Kumar Mitra
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi 110029, India.
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Khatiwada A, Yilmaz AS, Wolf BJ, Pietrzak M, Chung D. multi-GPA-Tree: Statistical approach for pleiotropy informed and functional annotation tree guided prioritization of GWAS results. PLoS Comput Biol 2023; 19:e1011686. [PMID: 38060592 PMCID: PMC10729974 DOI: 10.1371/journal.pcbi.1011686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 12/19/2023] [Accepted: 11/13/2023] [Indexed: 12/20/2023] Open
Abstract
Genome-wide association studies (GWAS) have successfully identified over two hundred thousand genotype-trait associations. Yet some challenges remain. First, complex traits are often associated with many single nucleotide polymorphisms (SNPs), most with small or moderate effect sizes, making them difficult to detect. Second, many complex traits share a common genetic basis due to 'pleiotropy' and and though few methods consider it, leveraging pleiotropy can improve statistical power to detect genotype-trait associations with weaker effect sizes. Third, currently available statistical methods are limited in explaining the functional mechanisms through which genetic variants are associated with specific or multiple traits. We propose multi-GPA-Tree to address these challenges. The multi-GPA-Tree approach can identify risk SNPs associated with single as well as multiple traits while also identifying the combinations of functional annotations that can explain the mechanisms through which risk-associated SNPs are linked with the traits. First, we implemented simulation studies to evaluate the proposed multi-GPA-Tree method and compared its performance with existing statistical approaches. The results indicate that multi-GPA-Tree outperforms existing statistical approaches in detecting risk-associated SNPs for multiple traits. Second, we applied multi-GPA-Tree to a systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA), and to a Crohn's disease (CD) and ulcertive colitis (UC) GWAS, and functional annotation data including GenoSkyline and GenoSkylinePlus. Our results demonstrate that multi-GPA-Tree can be a powerful tool that improves association mapping while facilitating understanding of the underlying genetic architecture of complex traits and potential mechanisms linking risk-associated SNPs with complex traits.
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Affiliation(s)
- Aastha Khatiwada
- Department of Biostatistics and Bioinformatics, National Jewish Health, Denver, Colorado, United States of America
| | - Ayse Selen Yilmaz
- Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio, United States of America
| | - Bethany J. Wolf
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Maciej Pietrzak
- Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio, United States of America
| | - Dongjun Chung
- Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio, United States of America
- Pelotonia Institute for Immuno-Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, United States of America
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Lama M, Sarkar R, Ghosh B. Serum Cytokine Profiles in Patients with Rheumatoid Arthritis Before and After Treatment with Methotrexate. J Interferon Cytokine Res 2023; 43:344-350. [PMID: 37566477 DOI: 10.1089/jir.2023.0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023] Open
Abstract
Rheumatoid arthritis (RA) is an inflammatory autoimmune illness affecting around 1% of the population globally. Cytokines have a crucial role in the pathogenesis of RA. The objectives of the present study were to compare the serum cytokine profiles between methotrexate (MTX)-treated and MTX-naive RA patient groups, MTX-treated RA patient group and healthy controls, and MTX-naive RA patient group and healthy controls. Enzyme linked immunosorbent assay (ELISA) kits were used to quantify the serum concentrations of tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1β, IL-17, IL-6, interferon-gamma (IFN-γ), and IL-10 in 80 RA patients (48 MTX treated and 32 MTX naive) and 80 healthy controls. For all cytokine assays, absorbance was measured at 450 nm using a microplate reader (Bio-Rad). Independent sample t-test was used to compare the serum cytokine concentrations between the study groups using SPSS version 25. MTX-treated RA patient group had significantly reduced serum levels of TNF-α (36.13 ± 17.64 versus 45.82 ± 23.07, *P = 0.037), IL-17 (307.85 ± 151.74 versus 435.42 ± 241.19, **P = 0.006), and IFN-γ (414.93 ± 212.13 versus 527.15 ± 269.61, *P = 0.041) compared to MTX-naive RA patients. Both MTX-treated and MTX-naive RA patient groups had significantly high serum levels of TNF-α, IL-1β, IL-17, IL-6, IFN-γ, and IL-10 when compared to healthy controls (***P < 0.001). Downregulation of the serum concentrations of certain key cytokines, viz. TNF-α, IL-17, and IFN-γ, demonstrates the anti-inflammatory effect of MTX in RA patients.
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Affiliation(s)
- Manoj Lama
- Molecular Immunology Laboratory, Department of Zoology, University of Gour Banga, Malda, India
| | - Rajat Sarkar
- Molecular Immunology Laboratory, Department of Zoology, University of Gour Banga, Malda, India
| | - Bappaditya Ghosh
- Department of Orthopaedics, Malda Medical College and Hospital, Malda, India
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9
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Wang M, Su T, Sun H, Cheng H, Jiang C, Guo P, Zhu Z, Fang R, He F, Ge M, Guan Q, Wei W, Wang Q. Regulating Th17/Treg Balance Contributes to the Therapeutic Effect of Ziyuglycoside I on Collagen-Induced Arthritis. Int J Mol Sci 2022; 23:16105. [PMID: 36555745 PMCID: PMC9786935 DOI: 10.3390/ijms232416105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/11/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
To investigate the therapeutic effect and primary pharmacological mechanism of Ziyuglycoside I (Ziyu I) on collagen-induced arthritis (CIA) mice. CIA mice were treated with 5, 10, or 20 mg/kg of Ziyu I or 2 mg/kg of methotrexate (MTX), and clinical manifestations, as well as pathological changes, were observed. T cell viability and subset type were determined, and serum levels of transforming growth factor-beta (TGF-β) and interleukin-17 (IL-17) were detected. The mRNA expression of retinoid-related orphan receptor-γt (RORγt) and transcription factor forkhead box protein 3 (Foxp3) in mouse spleen lymphocytes was ascertained by the real-time reverse transcriptase-polymerase chain reaction (RT-qPCR). Molecular docking was used to detect whether there was a molecular interaction between Ziyu I and protein kinase B (Akt). The activation of mechanistic target of rapamycin (mTOR) in T cells was verified by Western blotting or immunofluorescence. Ziyu I treatment effectively alleviated arthritis symptoms of CIA mice, including body weight, global score, arthritis index, and a number of swollen joints. Similarly, pathological changes of joints and spleens in arthritic mice were improved. The thymic index, T cell activity, and RORγt production of Ziyu I-treated mice were significantly reduced. Notably, through molecular docking, western blotting, and immunofluorescence data analysis, it was found that Ziyu I could interact directly with Akt to reduce downstream mTOR activation and inhibit helper T cell 17 (Th17) differentiation, thereby regulating Th17/regulatory T cell (Treg) balance and improving arthritis symptoms. Ziyu I effectively improves arthritic symptoms in CIA mice by inhibiting mTOR activation, thereby affecting Th17 differentiation and regulating Th17/Treg balance.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
| | - Qingtong Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
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10
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Yu N, Yang F, Zhao X, Guo Y, Xu Y, Pang G, Gong Y, Wang S, Liu Y, Fang Y, Yu K, Yao L, Wang H, Zhang K, Liu B, Wang Z, Guo Y, Xu Z. Manual acupuncture at ST36 attenuates rheumatoid arthritis by inhibiting M1 macrophage polarization and enhancing Treg cell populations in adjuvant-induced arthritic rats. Acupunct Med 2022; 41:96-109. [PMID: 35585798 DOI: 10.1177/09645284221085278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Acupuncture has been found to be effective at relieving many inflammatory pain conditions, including rheumatoid arthritis (RA). We aimed to assess the anti-inflammatory potential of manual acupuncture (MA) treatment of RA using adjuvant-induced arthritic (AIA) rats and to explore the underlying mechanisms. METHODS The anti-inflammatory and analgesic actions of MA at ST36 (Zusanli) in AIA rats were assessed using paw withdrawal latency and swelling, histological examination and cytokine detection by enzyme-linked immunoassay (ELISA). The cell-cell communication (CCC) network was analyzed with a multiplex immunoassay of 24 immune factors expressed in the inflamed joints, and the macrophage and Treg populations and associated cytokines regulated by MA were investigated using reverse-transcription quantitative polymerase chain reaction (RT-qPCR), ELISA and flow cytometry. RESULTS MA markedly decreased heat hyperalgesia and paw swelling in AIA rats. MA-treated rats also exhibited decreased levels of pro-inflammatory cytokines (tumor necrosis factor (TNF)-α, interleukin (IL)-1β) coupled with increased anti-inflammatory cytokines (IL-10, transforming growth factor (TGF)-β1) in the ankle joints at protein and mRNA levels. CCC network analysis confirmed that macrophages are of critical importance and are potential therapeutic targets in RA. Repeated treatment with MA triggered a macrophage phenotypic switch in the paws, with fewer M1 macrophages. Prominent increases in the Treg cell population and TGF-β1 in the popliteal lymph nodes demonstrated the immunomodulatory effects of MA. Furthermore, a selective TGF-β1-receptor inhibitor, SB431542, attenuated the anti-inflammatory effects of MA and MA-induced suppression of the levels of M1-released cytokines. CONCLUSION These findings provide novel evidence that the anti-inflammatory and analgesic effects of MA on RA act through phenotypic modulation involving the inhibition of M1 macrophage polarization and an increase in the Treg cell population, highlighting the potential therapeutic advantages of acupuncture in controlling pain and ameliorating inflammatory conditions.
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Affiliation(s)
- Nannan Yu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,Department of Traditional Chinese Medicine, the First Affiliated Hospital, the Air Force Medical University, Xi'an, P.R. China
| | - Fuming Yang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Xue Zhao
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, P.R. China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Yongming Guo
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, P.R. China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Yuan Xu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, P.R. China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Guangchang Pang
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, P.R. China
| | - Yinan Gong
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Shenjun Wang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, P.R. China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Yangyang Liu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, P.R. China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Yuxin Fang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, P.R. China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Kun Yu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Lin Yao
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Hui Wang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Kuo Zhang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Baohu Liu
- Department of Rehabilitation, Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing, P.R. China
| | - Zhenguo Wang
- Xi'an Encephalopathy Hospital of Traditional Chinese Medicine, Xi'an, P.R. China
| | - Yi Guo
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, P.R. China.,School of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Zhifang Xu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, P.R. China.,School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
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11
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Cyanidin restores Th17/Treg balance and inhibits T follicular helper cell differentiation via modulation of ROCK2 signaling in an experimental model of rheumatoid arthritis. Int Immunopharmacol 2021; 101:108359. [PMID: 34863656 DOI: 10.1016/j.intimp.2021.108359] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 10/10/2021] [Accepted: 11/07/2021] [Indexed: 01/02/2023]
Abstract
Disturbed Th17/Treg balance is a critical pathological event in the disease progression of rheumatoid arthritis (RA). Recently, emerging studies have demonstrated that CD4 + T helper follicular (Tfh) cells exacerbates the pathogenic manifestations of RA. Contrarily, our previous report has shown that cyanidin, a flavonoid compound, attenuates disease severity of RA. Howbeit, this study investigated the therapeutic efficacy of cyanidin in relation to Th17/Treg balance and pathogenic Tfh cells in RA. Onto results, cyanidin inhibited increased Th17 cell differentiation and reciprocally improved FoxP3 + Treg cells both in-vivo and in-vitro. Concomitantly, cyanidin abated the detrimental effects of IL-17 via restoration of IL-10 secretion in adjuvant induced arthritic (AIA) rats. Furthermore, cyanidin reduced Tfh cells proportion and IgG levels in AIA rats, thus rectifying Tfh and follicular regulatory T (Tfr) cell ratio. Mechanistically, the restoring effect of cyanidin was associated with blunted activation of ROCK2/STAT3 signaling axis and reciprocal increase in the level of STAT-5 activity. Notwithstanding, cyanidin therapeutic efficacy correlated with specific oral ROCK2 inhibitor KD025 in-vitro. Collectively, these results demonstrate a dual promising therapeutic role of cyanidin via regulating Th17/Treg ratio and Tfh cell differentiation in an experimental model of RA.
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12
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Epigenetically-regulated RPN2 gene influences lymphocyte activation and is involved in pathogenesis of rheumatoid arthritis. Gene 2021; 810:146059. [PMID: 34740730 DOI: 10.1016/j.gene.2021.146059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/22/2021] [Accepted: 10/29/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND To identify RA-associated genes and to ascertain epigenetic factors and functional mechanisms underlying RA pathogenesis. METHODS Peripheral blood mononuclear cells (PBMC) transcriptome- and proteome- wide gene expressions were profiled in a case-control study sample. Differentially expressed genes (DEGs) were discovered and validated independently. In-house PBMC genome-wide SNP genotyping data, miRNA expression data and DNA methylation data in the same sample were utilized to identify SNPs [expression quantitative trait locus (eQTLs) and protein quantitative trait locus (pQTLs)], miRNAs, and DNA methylation positions (DMPs) regulating key DEG of interest. Lentivirus transfection was conducted to study the effects of RPN2 on T lymphocyte activation, proliferation, apoptosis, and inflammatory cytokine expression. Rpn2 protein level in plasma was quantitated by ELISA to assess its performance in discriminating RA cases and controls. RESULTS Twenty-two DEGs were discovered in PBMCs. The most significant DEG, i.e., RPN2, was validated to be up-regulated with RA in PBMCs. A complex regulatory network for RPN2 gene expression in PBMCs was constructed, which consists of 38 eQTL and 53 pQTL SNPs, 3 miRNAs and 2 DMPs. Besides, RPN2 expression was significantly up-regulated with RA in primary T lymphocytes, as well as in PHA-activated T lymphocytes. RPN2 over-expression in T lymphocytes significantly inhibited apoptosis and IL-4 expression and promoted proliferation and activation. PBMCs-expressed RPN2 mRNA and plasma Rpn2 protein demonstrated superior and modest performances in discriminating RA cases and controls, respectively. CONCLUSIONS RPN2 gene influences T lymphocyte growth and activation and is involved in the pathogenesis of RA. Rpn2 may serve as a novel protein biomarker for RA diagnosis.
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13
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ITGA2 protein is associated with rheumatoid arthritis in Chinese and affects cellular function of T cells. Clin Chim Acta 2021; 523:208-215. [PMID: 34599900 DOI: 10.1016/j.cca.2021.09.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND We identified proteins significant for rheumatoid arthritis (RA) in peripheral blood mononuclear cells (PBMCs), and to clarify mechanisms mediated by underlying proteins that may involve in the pathogenesis of RA. METHODS Proteome-wide protein expressions were profiled by employing label-free quantitative proteomics methodology (Easy-nLC1000 and Q-exactive). The t-test was applied to identify differentially expressed proteins (DEP, p ≤ 0.05) between RA case and control samples. Gene Ontology enrichment analyses and Protein-Protein Interaction analyses were performed to annotate functions of DEPs. The selected DEP was validated in independent samples using Simple Western assay. Plasma protein level of α2 component of integrin (ITGA2) was measured by using ELISA. The DEP, ITGA2, was assessed for its effects on T cell proliferation, cell cycle, apoptosis, and inflammatory cytokine expression. RESULTS Sixty-four DEPs (p < 0.05) were identified in PBMCs. The selected ITGA2 (Fold Change, FC = 2.20, p = 1.49E-02) was validated to be up-regulated (FC = 12.33, p = 4.90E-2) with RA, and plasma ITGA2 protein level significantly elevated in RA patients vs. controls. Over-expression of ITGA2 could promote proliferation and inhibit apoptosis of Jurkat T cell, and induce IL-8, IFN-γ and TNF-α expression in Jurkat T cells. CONCLUSIONS ITGA2 protein was significantly over-expressed in PBMCs in RA patients, and affects T cell growth and pro-inflammatory cytokine expression in T cells.
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14
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McCallum RT, Perreault ML. Glycogen Synthase Kinase-3: A Focal Point for Advancing Pathogenic Inflammation in Depression. Cells 2021; 10:cells10092270. [PMID: 34571919 PMCID: PMC8470361 DOI: 10.3390/cells10092270] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/26/2021] [Accepted: 08/28/2021] [Indexed: 01/03/2023] Open
Abstract
Increasing evidence indicates that the host immune response has a monumental role in the etiology of major depressive disorder (MDD), motivating the development of the inflammatory hypothesis of depression. Central to the involvement of chronic inflammation in MDD is a wide range of signaling deficits induced by the excessive secretion of pro-inflammatory cytokines and imbalanced T cell differentiation. Such signaling deficits include the glutamatergic, cholinergic, insulin, and neurotrophin systems, which work in concert to initiate and advance the neuropathology. Fundamental to the communication between such systems is the protein kinase glycogen synthase kinase-3 (GSK-3), a multifaceted protein critically linked to the etiology of MDD and an emerging target to treat pathogenic inflammation. Here, a consolidated overview of the widespread multi-system involvement of GSK-3 in contributing to the neuropathology of MDD will be discussed, with the feed-forward mechanistic links between all major neuronal signaling pathways highlighted.
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Affiliation(s)
- Ryan T. McCallum
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Melissa L. Perreault
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada;
- Collaborative Program in Neuroscience, University of Guelph, Guelph, ON N1G 2W1, Canada
- Correspondence: ; Tel.: +1-(519)-824-4120 (ext. 52013)
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15
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Wang R, Li DF, Hu YF, Liao Q, Jiang TT, Olatunji OJ, Yang K, Zuo J. Qing-Luo-Yin Alleviated Monocytes/Macrophages-Mediated Inflammation in Rats with Adjuvant-Induced Arthritis by Disrupting Their Interaction with (Pre)-Adipocytes Through PPAR-γ Signaling. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:3105-3118. [PMID: 34295151 PMCID: PMC8291661 DOI: 10.2147/dddt.s320599] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/09/2021] [Indexed: 12/29/2022]
Abstract
Background The Chinese herbal formula Qing-Luo-Yin (QLY) has been successfully used in rheumatoid arthritis treatment for decades. It exhibits notable immune and metabolism regulatory properties. Thereby, we investigated its effects on the interplay between (pre)-adipocytes and monocytes/macrophages under adjuvant-induced arthritis (AIA) circumstances. Methods Fat reservoir and histological characteristics of white fat tissues (WAT) in AIA rats receiving QLY treatment were examined upon sacrifice. Metabolic parameters, clinical indicators, and oxidative stress levels were determined using corresponding kits, while mRNA/protein expression was investigated by PCR and immunoblotting methods. M1 macrophage distribution in WAT was assessed by flow cytometry. The effects of QLY on (pre)-adipocytes were further validated by experiments in vitro. Results Compared with normal healthy controls, body weight and circulating triglyceride were declined in AIA rats, but serological levels of free fatty acids and low-density lipoprotein cholesterol were increased. mRNA IL-1β and iNOS expression in white blood cells and rheumatoid factor, C-reactive protein, anti-cyclic citrullinated peptide antibody, MCP-1 and IL-1β production in serum/WAT were up-regulated. Obvious CD86+CD11b+ macrophages were enriched in WAT. Meanwhile, expression of PPAR-γ and SIRT1 and secretion of adiponectin and leptin in these AIA rats were impaired. QLY restored all these pathological changes. Of note, it significantly stimulated PPAR-γ expression in the treated AIA rats. Accordingly, QLY-containing serum promoted SCD-1, PPAR-γ, and SIRT1 expression in pre-adipocytes cultured in vitro. AIA rats-derived peripheral blood mononuclear cells suppressed PPAR-γ and SCD-1 expression in co-cultured pre-adipocytes, but serum from AIA rats receiving QLY treatment did not exhibit this potential. The changes on PPAR-γ expression eventually resulted in varied adipocyte differentiation statuses. PPAR-γ selective inhibitor T0070907 abrogated QLY-induced MCP-1 production decline in LPS-primed pre-adipocytes and reduced adiponectin secretion. Conclusion QLY was potent in promoting PPAR-γ expression and consequently disrupted inflammatory feedback in WAT by altering monocytes/macrophages polarization and adipocytes differentiation.
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Affiliation(s)
- Rui Wang
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Dan-Feng Li
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Yi-Fang Hu
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Qiang Liao
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Tian-Tian Jiang
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Opeyemi Joshua Olatunji
- Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai, 90112, Thailand
| | - Kui Yang
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China.,Department of Pharmacy, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China
| | - Jian Zuo
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, 241000, People's Republic of China
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16
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Tu J, Huang W, Zhang W, Mei J, Zhu C. A Tale of Two Immune Cells in Rheumatoid Arthritis: The Crosstalk Between Macrophages and T Cells in the Synovium. Front Immunol 2021; 12:655477. [PMID: 34220809 PMCID: PMC8248486 DOI: 10.3389/fimmu.2021.655477] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 06/01/2021] [Indexed: 11/13/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease. Joint inflammation of RA is closely related to infiltration of immune cells, synovium hyperplasia, and superfluous secretion of proinflammatory cytokines, which lead to cartilage degradation and bone erosion. The joint synovium of RA patients contains a variety of immune cellular types, among which monocytes/macrophages and T cells are two essential cellular components. Monocytes/macrophages can recruit and promote the differentiation of T cells into inflammatory phenotypes in RA synovium. Similarly, different subtypes of T cells can recruit monocytes/macrophages and promote osteoblast differentiation and production of inflammatory cytokines. In this review, we will discuss how T cell-monocyte/macrophage interactions promote the development of RA, which will provide new perspectives on RA pathogenesis and the development of targeted therapy.
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Affiliation(s)
- Jiajie Tu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
- Department of Gynecology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Wei Huang
- Department of Orthopaedics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Weiwei Zhang
- Departments of Geriatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jiawei Mei
- Department of Orthopaedics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chen Zhu
- Department of Orthopaedics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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17
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Zhang C, Ma K, Yang Y, Wang F, Li W. Glaucocalyxin A suppresses inflammatory responses and induces apoptosis in TNF-a-induced human rheumatoid arthritis via modulation of the STAT3 pathway. Chem Biol Interact 2021; 341:109451. [PMID: 33798506 DOI: 10.1016/j.cbi.2021.109451] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/14/2021] [Accepted: 03/21/2021] [Indexed: 12/12/2022]
Abstract
The pathogenesis of rheumatoid arthritis (RA) is characterized by synoviocyte hyperplasia and proinflammatory cytokine secretion, as well as the destruction of cartilage and bone. Glaucocalyxin A (GLA) is an alkaloid derived from a Chinese medicinal plant that exhibits anti-inflammatory, anti-tumor and neuroprotective properties. We investigated the effects of GLA on RA-fibroblast-like synoviocytes (FLS cells), and collagen-induced arthritis (CIA), and further explored the underlying mechanisms. GLA inhibited TNF-a-induced RA-FLS proliferation, increased apoptotic ratios and upregulated levels of caspase-3, cleaved PARP, and Bax. GLA also inhibited the expression of IL-10, IL-1β, and IL-6 in vitro. Levels of p-STAT3 were downregulated in a dose-dependent manner. Over-expression of STAT3 partly neutralized the GLA-mediated elevation of caspase-3 and cleaved PARP levels as well as the downregulation of IL-10, IL-1B and IL-6 expression levels. This suggests that GLA inactivated the STAT3 pathway. Furthermore, the production of inflammatory cytokines in RA-FLS and a CIA rat model were inhibited effectively by GLA. Taken together, our data suggest that GLA is a potential long-term therapeutic agent for patients with RA.
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MESH Headings
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Apoptosis/drug effects
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/pathology
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/pathology
- CD4-Positive T-Lymphocytes/drug effects
- Cell Differentiation/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Cytokines/metabolism
- Diterpenes, Kaurane/pharmacology
- Humans
- Inflammation/drug therapy
- Inflammation/metabolism
- Inflammation/pathology
- Male
- Mice, Inbred DBA
- Rats, Wistar
- STAT3 Transcription Factor/genetics
- STAT3 Transcription Factor/metabolism
- Synoviocytes/drug effects
- Synoviocytes/metabolism
- Synoviocytes/pathology
- Th17 Cells/drug effects
- Th17 Cells/physiology
- Tumor Necrosis Factor-alpha/pharmacology
- Mice
- Rats
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Affiliation(s)
- Chuan Zhang
- Orthopedic Hospital of Henan Province & Orthopedic Institute of Henan Province, Luoyang, Henan, 471002, PR China
| | - Kun Ma
- Orthopedic Hospital of Henan Province & Orthopedic Institute of Henan Province, Luoyang, Henan, 471002, PR China
| | - Yanmei Yang
- Orthopedic Hospital of Henan Province & Orthopedic Institute of Henan Province, Luoyang, Henan, 471002, PR China
| | - Fuqiang Wang
- Anyang Cancer Hospital, Anyang, Henan, 455000, PR China
| | - Wuyin Li
- Orthopedic Hospital of Henan Province & Orthopedic Institute of Henan Province, Luoyang, Henan, 471002, PR China.
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18
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Agrahari G, Sah SK, Bang CH, Kim YH, Kim TY. Superoxide Dismutase 3 Controls the Activation and Differentiation of CD4 +T Cells. Front Immunol 2021; 12:628117. [PMID: 33717151 PMCID: PMC7947887 DOI: 10.3389/fimmu.2021.628117] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/21/2021] [Indexed: 12/11/2022] Open
Abstract
Superoxide dismutase 3 (SOD3), a well-known antioxidant has been shown to possess immunomodulatory properties through inhibition of T cell differentiation. However, the underlying inhibitory mechanism of SOD3 on T cell differentiation is not well understood. In this study, we investigated the effect of SOD3 on anti-CD3/CD28- or phorbol myristate acetate (PMA) and ionomycin (ION)-mediated activation of mouse naive CD4+ T cells. Our data showed that SOD3 suppressed the expression of activation-induced surface receptor proteins such as CD25, and CD69, and cytokines production. Similarly, SOD3 was found to reduce CD4+T cells proliferation and suppress the activation of downstream pathways such as ERK, p38, and NF-κB. Moreover, naïve CD4+T cells isolated from global SOD3 knock-out mice showed higher expression of CD25, CD69, and CD71, IL-2 production, proliferation, and downstream signals compared to wild-type CD4+T cells. Whereas, the use of DETCA, a known inhibitor of SOD3 activity, found to nullify the inhibitory effect of SOD3 on CD4+T cell activation of both SOD3 KO and wild-type mice. Furthermore, the expression of surface receptor proteins, IL-2 production, and downstream signals were also reduced in Th2 and Th17 differentiated cells upon SOD3 treatment. Overall, our data showed that SOD3 can attenuate CD4+T cell activation through modulation of the downstream signalings and restrict CD4+T cell differentiation. Therefore, SOD3 can be a promising therapeutic for T cell-mediated disorders.
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Affiliation(s)
- Gaurav Agrahari
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Shyam Kishor Sah
- Department of Reconstructive Sciences, Center for Regenerative Medicine and Skeletal Development, UConn Health, Farmington, CT, United States
| | - Chul Hwan Bang
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Yeong Ho Kim
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Tae-Yoon Kim
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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19
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Monserrat Sanz J, Bohórquez C, Gómez AM, Movasat A, Pérez A, Ruíz L, Diaz D, Sánchez AI, Albarrán F, Sanz I, Álvarez-Mon M. Methrotexate Treatment Inmunomodulates Abnormal Cytokine Expression by T CD4 Lymphocytes Present in DMARD-Naïve Rheumatoid Arthritis Patients. Int J Mol Sci 2020; 21:E6847. [PMID: 32961930 PMCID: PMC7555887 DOI: 10.3390/ijms21186847] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 01/18/2023] Open
Abstract
CD4+T-lymphocytes are relevant in the pathogenesis of rheumatoid arthritis (RA), however, their potential involvement in early RA remains elusive. Methotrexate (MTX) is a commonly used disease-modifying antirheumatic drug (DMARD), but its mechanism has not been fully established. In 47 new-onset DMARD-naïve RA patients, we investigated the pattern of IFNγ, IL-4 and IL-17A expression by naïve (TN), central (TCM), effector memory (TEM) and effector (TE) CD4+ subsets; their STAT-1, STAT-6 and STAT-3 transcription factors phosphorylation, and the circulating levels of IFNγ, IL-4 and IL-17. We also studied the RA patients after 3 and 6 months of MTX treatment and according their clinical response. CD4+T-lymphocyte subsets and cytokine expression were measured using flow cytometry. New-onset DMARD-naïve RA patients showed a significant expansion of IL-17A+, IFNγ+ and IL-17A+IFNγ+ CD4+T-lymphocyte subsets and increased intracellular STAT-1 and STAT-3 phosphorylation. Under basal conditions, nonresponder patients showed increased numbers of circulating IL-17A producing TN and TMC CD4+T-lymphocytes and IFNγ producing TN, TCM, TEM CD4+T-lymphocytes with respect to responders. After 6 months, the numbers of CD4+IL-17A+TN remained significantly increased in nonresponders. In conclusion, CD4+T-lymphocytes in new-onset DMARD-naïve RA patients show IL-17A and IFNγ abnormalities in TN, indicating their relevant role in early disease pathogenesis. Different patterns of CD4+ modulation are identified in MTX responders and nonresponders.
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Affiliation(s)
- Jorge Monserrat Sanz
- Laboratory of Immune System Diseases, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain; (A.M.G.); (D.D.)
- IRYCIS Unit, Instituto Ramón y Cajal de Investigación Sanitaria, 28034 Madrid, Spain;
| | - Cristina Bohórquez
- Immune System Diseases-Rheumatology Service, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28805 Madrid, Spain; (C.B.); (A.M.); (L.R.); (A.I.S.); (F.A.)
| | - Ana Maria Gómez
- Laboratory of Immune System Diseases, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain; (A.M.G.); (D.D.)
| | - Atusa Movasat
- Immune System Diseases-Rheumatology Service, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28805 Madrid, Spain; (C.B.); (A.M.); (L.R.); (A.I.S.); (F.A.)
| | - Ana Pérez
- IRYCIS Unit, Instituto Ramón y Cajal de Investigación Sanitaria, 28034 Madrid, Spain;
- Immune System Diseases-Rheumatology Service, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28805 Madrid, Spain; (C.B.); (A.M.); (L.R.); (A.I.S.); (F.A.)
| | - Lucía Ruíz
- Immune System Diseases-Rheumatology Service, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28805 Madrid, Spain; (C.B.); (A.M.); (L.R.); (A.I.S.); (F.A.)
| | - David Diaz
- Laboratory of Immune System Diseases, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain; (A.M.G.); (D.D.)
- IRYCIS Unit, Instituto Ramón y Cajal de Investigación Sanitaria, 28034 Madrid, Spain;
| | - Ana Isabel Sánchez
- Immune System Diseases-Rheumatology Service, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28805 Madrid, Spain; (C.B.); (A.M.); (L.R.); (A.I.S.); (F.A.)
| | - Fernando Albarrán
- Immune System Diseases-Rheumatology Service, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28805 Madrid, Spain; (C.B.); (A.M.); (L.R.); (A.I.S.); (F.A.)
| | - Ignacio Sanz
- Division of Immunology and Rheumatology, Department of Medicine, Emory University, Atlanta, GA 30322, USA;
| | - Melchor Álvarez-Mon
- Laboratory of Immune System Diseases, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain; (A.M.G.); (D.D.)
- IRYCIS Unit, Instituto Ramón y Cajal de Investigación Sanitaria, 28034 Madrid, Spain;
- Immune System Diseases-Rheumatology Service, Department of Medicine, University Hospital “Príncipe de Asturias”, University of Alcalá, Alcalá de Henares, 28805 Madrid, Spain; (C.B.); (A.M.); (L.R.); (A.I.S.); (F.A.)
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Wan M, Ding L, Wang D, Han J, Gao P. Serotonin: A Potent Immune Cell Modulator in Autoimmune Diseases. Front Immunol 2020; 11:186. [PMID: 32117308 PMCID: PMC7026253 DOI: 10.3389/fimmu.2020.00186] [Citation(s) in RCA: 164] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 01/23/2020] [Indexed: 11/13/2022] Open
Abstract
Serotonin, also known as 5-hydroxytryptamine (5-HT) is a signaling mediator that regulates emotion, behavior, and cognition. Previous studies have focused more on the roles of 5-HT in the central nervous system (CNS). However, 5-HT also shares a strong relationship with the pathological cases of tumor, inflammation, and pathogen infection. 5-HT participates in tumor cell migration, metastatic dissemination, and angiogenesis. In addition, 5-HT affects immune regulation via different 5-HT receptors (5-HTRs) expressed immune cells, including both innate and adaptive immune system. Recently, drugs targeting at 5-HT signaling were tested to be beneficial in mouse models and clinical trials of multiple sclerosis (MS) and inflammatory bowel disease (IBD). Thus, it is reasonable to assume that 5-HT participates in the pathogenesis of autoimmune diseases. However, the underlying mechanism by 5-HT modulates the development of autoimmune diseases has not been fully understood. Based on our previous studies and pertinent literature, we provide circumstantial evidence for an essential role of 5-HT, especially the regulation of 5-HT on immune cells in the pathogenesis of autoimmune diseases, which may provide a new point cut for the treatment of autoimmune diseases.
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Affiliation(s)
- Minjie Wan
- Department of Hepatology, The First Hospital of Jilin University, Jilin University, Changchun, China.,Central Laboratory, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Lili Ding
- Central Laboratory, The First Hospital of Jilin University, Jilin University, Changchun, China.,Intensive Care Unit, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Dong Wang
- Department of Hepatology, The First Hospital of Jilin University, Jilin University, Changchun, China.,Central Laboratory, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Jiawen Han
- Central Laboratory, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Pujun Gao
- Department of Hepatology, The First Hospital of Jilin University, Jilin University, Changchun, China
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Kwon MS, Shin MY, Lim SK, Lee J, Park HK, Kim N, Yun M, Jo HE, Oh YJ, Choi HJ. Leuconostoc citreum isolated from kimchi suppresses the development of collagen-induced arthritis in DBA/1 mice. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Malemud CJ. Inhibition of MMPs and ADAM/ADAMTS. Biochem Pharmacol 2019; 165:33-40. [PMID: 30826330 DOI: 10.1016/j.bcp.2019.02.033] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 02/28/2019] [Indexed: 12/12/2022]
Abstract
Matrix metalloproteinases (MMPs), A Disintegrin and Metalloproteinase (ADAM) and A Disintegrin and Metalloproteinase with Thrombospondin Motif (ADAMTS) are zinc-dependent endopeptidases that play a critical role in the destruction of extracellular matrix proteins and, the shedding of membrane-bound receptor molecules in various forms of arthritis and other diseases. Under normal conditions, MMP, ADAM and ADAMTS gene expression aids in the maintenance of homeostasis. However, in inflamed synovial joints characteristic of rheumatoid arthritis and osteoarthritis. MMP, ADAM and ADAMTS production is greatly increased under the influence of pro-inflammatory cytokines. Analyses based on medicinal chemistry strategies designed to directly inhibit the activity of MMPs have been largely unsuccessful when these MMP inhibitors were employed in animal models of rheumatoid arthritis and osteoarthritis. This is despite the fact that these MMP inhibitors were largely able to suppress pro-inflammatory cytokine-induced MMP production in vitro. A focus on ADAM and ADAMTS inhibitors has also been pursued. Thus, recent progress has identified the "sheddase" activity of ADAMs as a viable target and the development of GW280264X is an experimental ADAM17 inhibitor. Of note, a monoclonal antibody, GLPG1972, developed as an ADAMTS-5 inhibitor, entered a Phase I OA clinical trial. However, the failure of many of these previously developed inhibitors to move beyond the preclinical testing phase has required that novel strategies be developed that are designed to suppress both MMP, ADAM and ADAMTS production and activity.
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Affiliation(s)
- Charles J Malemud
- Division of Rheumatic Diseases, Case Western Reserve University School of Medicine, Cleveland, OH 44106, United States; Department of Medicine, Division of Rheumatic Diseases, University Hospitals Cleveland Medical Center, Foley Medical Building, 2061 Cornell Road, Room 207, Cleveland, OH 44106-5076, United States.
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Malemud CJ. Defective T-Cell Apoptosis and T-Regulatory Cell Dysfunction in Rheumatoid Arthritis. Cells 2018; 7:E223. [PMID: 30469466 PMCID: PMC6316166 DOI: 10.3390/cells7120223] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/13/2018] [Accepted: 11/20/2018] [Indexed: 12/25/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic, progressive, systemic autoimmune disease that mostly affects small and large synovial joints. At the molecular level, RA is characterized by a profoundly defective innate and adaptive immune response that results in a chronic state of inflammation. Two of the most significant alterations in T-lymphocyte (T-cell) dysfunction in RA is the perpetual activation of T-cells that result in an abnormal proliferation state which also stimulate the proliferation of fibroblasts within the joint synovial tissue. This event results in what we have termed "apoptosis resistance", which we believe is the leading cause of aberrant cell survival in RA. Finding therapies that will induce apoptosis under these conditions is one of the current goals of drug discovery. Over the past several years, a number of T-cell subsets have been identified. One of these T-cell subsets are the T-regulatory (Treg) cells. Under normal conditions Treg cells dictate the state of immune tolerance. However, in RA, the function of Treg cells become compromised resulting in Treg cell dysfunction. It has now been shown that several of the drugs employed in the medical therapy of RA can partially restore Treg cell function, which has also been associated with amelioration of the clinical symptoms of RA.
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Affiliation(s)
- Charles J Malemud
- Department of Medicine, Division of Rheumatic Diseases, Case Western Reserve University School of Medicine, Foley Medical Building, 2061 Cornell Road, Suite 207, Cleveland, OH 44122-5076, USA.
- Department of Medicine, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA.
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Corrales O, Hernández L, Prada D, Gómez J, Reyes Y, López AM, González LJ, del Carmen Domínguez Horta M. CIGB-814, an altered peptide ligand derived from human heat-shock protein 60, decreases anti-cyclic citrullinated peptides antibodies in patients with rheumatoid arthritis. Clin Rheumatol 2018; 38:955-960. [DOI: 10.1007/s10067-018-4360-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/29/2018] [Accepted: 11/05/2018] [Indexed: 12/12/2022]
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Interplay between P. gingivalis, F. nucleatum and A. actinomycetemcomitans in murine alveolar bone loss, arthritis onset and progression. Sci Rep 2018; 8:15129. [PMID: 30310087 PMCID: PMC6181973 DOI: 10.1038/s41598-018-33129-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/20/2018] [Indexed: 12/21/2022] Open
Abstract
Increasing evidence supports the association of periodontitis with rheumatoid arthritis. Even though a prominent role has been postulated for Porphyromonas gingivalis, many bacterial species contribute to the pathogenesis of periodontal disease. We therefore investigated the impact of Porphyromonas gingivalis as well as other major pathobionts on the development of both, periodontitis and arthritis in the mouse. Pathobionts used - either alone or in combination - were Porphyromonas gingivalis, Fusobacterium nucleatum and Aggregatibacter actinomycetemcomintans. Periodontitis was induced via oral gavage in SKG, DBA/1 and F1 (DBA/1 × B10.Q) mice and collagen-induced arthritis was provoked via immunization and boost with bovine collagen type II. Alveolar bone loss was quantified via micro computed tomography, arthritis was evaluated macroscopically and histologically and serum antibodies were assessed. Among the strains tested, only F1 mice were susceptible to P. gingivalis induced periodontitis and showed significant alveolar bone loss. Bone loss was paralleled by antibody titers against P. gingivalis. Of note, mice inoculated with the mix of all three pathobionts showed less alveolar bone loss than mice inoculated with P. gingivalis alone. However, oral inoculation with either F. nucleatum or A. actinomycetemcomintans alone accelerated subsequent arthritis onset and progression. This is the first report of a triple oral inoculation of pathobionts combined with collagen-induced arthritis in the mouse. In this interplay and this particular genetic setting, F. nucleatum and A. actinomycetemcomitans exerted a protective impact on P. gingivalis induced alveolar bone loss. By themselves they did not induce periodontitis yet accelerated arthritis onset and progression.
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Malemud CJ. The role of the JAK/STAT signal pathway in rheumatoid arthritis. Ther Adv Musculoskelet Dis 2018; 10:117-127. [PMID: 29942363 PMCID: PMC6009092 DOI: 10.1177/1759720x18776224] [Citation(s) in RCA: 202] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/20/2018] [Indexed: 12/30/2022] Open
Abstract
Proinflammatory cytokine activation of the Janus kinase/signal transducers and activators of transcription (JAK/STAT) signal transduction pathway is a critical event in the pathogenesis and progression of rheumatoid arthritis. Under normal conditions, JAK/STAT signaling reflects the influence of negative regulators of JAK/STAT, exemplified by the suppressor of cytokine signaling and protein inhibitor of activated STAT. However, in rheumatoid arthritis (RA) both of these regulators are dysfunctional. Thus, continuous activation of JAK/STAT signaling in RA synovial joints results in the elevated level of matrix metalloproteinase gene expression, increased frequency of apoptotic chondrocytes and most prominently 'apoptosis resistance' in the inflamed synovial tissue. Tofacitinib, a JAK small molecule inhibitor, with selectivity for JAK2/JAK3 was approved by the United States Food and Drug Administration (US FDA) for the therapy of RA. Importantly, tofacitinib has demonstrated significant clinical efficacy for RA in the post-US FDA-approval surveillance period. Of note, the success of tofacitinib has spurred the development of JAK1, JAK2 and other JAK3-selective small molecule inhibitors, some of which have also entered the clinical setting, whereas other JAK inhibitors are currently being evaluated in RA clinical trials.
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Langdon K, Haleagrahara N. Regulatory T-cell dynamics with abatacept treatment in rheumatoid arthritis. Int Rev Immunol 2018; 37:206-214. [PMID: 29757670 DOI: 10.1080/08830185.2018.1465943] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The progressive damage in rheumatoid arthritis (RA) has been linked to an increase in inflammatory Th1/Th17 cells and a decrease in number or function of immunomodulatory regulatory T cells (Tregs). Many therapies that are effective in RA are shown to affect Th1/Th17 cells and/or Tregs. One such therapy, abatacept, utilizes a physiologic immunomodulatory molecule called cytotoxic lymphocyte antigen-4 (CTLA-4) which causes contact-dependent inhibition of inflammatory T-cell activation. Recent advances in CTLA-4 research has uncovered the method by which this occurs physiologically but the actions of the CTLA-4Ig fusion protein are still not fully understood. The reported effects of the drug on Treg population number and suppressor function have been very mixed. In this review, we will discuss the current literature surrounding the effects of abatacept in rheumatoid arthritis and explore potential explanations for the differences in results. Future opportunities in this area include contributions to a unified definition for different immune cell populations, LAG3+ Tregs which may pose an avenue for further study or the stratification of patients with regards to their specific disease characteristics, resulting in optimized treatment for disease remission.
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Affiliation(s)
- Kane Langdon
- a College of Medicine and Dentistry , James Cook University , Douglas , Townsville , Australia
| | - Nagaraja Haleagrahara
- b College of Public Health, Medicine and Veterinary Sciences , James Cook University , Douglas , Townsville , Australia
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NAKASHIMA A, YAMADA K, IWATA O, SUGIMOTO R, ATSUJI K, OGAWA T, ISHIBASHI-OHGO N, SUZUKI K. β-Glucan in Foods and Its Physiological Functions. J Nutr Sci Vitaminol (Tokyo) 2018; 64:8-17. [DOI: 10.3177/jnsv.64.8] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Barbera Betancourt A, Lyu Q, Broere F, Sijts A, Rutten VPMG, van Eden W. T Cell-Mediated Chronic Inflammatory Diseases Are Candidates for Therapeutic Tolerance Induction with Heat Shock Proteins. Front Immunol 2017; 8:1408. [PMID: 29123529 PMCID: PMC5662553 DOI: 10.3389/fimmu.2017.01408] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 10/11/2017] [Indexed: 12/21/2022] Open
Abstract
Failing immunological tolerance for critical self-antigens is the problem underlying most chronic inflammatory diseases of humans. Despite the success of novel immunosuppressive biological drugs, the so-called biologics, in the treatment of diseases such rheumatoid arthritis (RA) and type 1 diabetes, none of these approaches does lead to a permanent state of medicine free disease remission. Therefore, there is a need for therapies that restore physiological mechanisms of self-tolerance. Heat shock proteins (HSPs) have shown disease suppressive activities in many models of experimental autoimmune diseases through the induction of regulatory T cells (Tregs). Also in first clinical trials with HSP-based peptides in RA and diabetes, the induction of Tregs was noted. Due to their exceptionally high degree of evolutionary conservation, HSP protein sequences (peptides) are shared between the microbiota-associated bacterial species and the self-HSP in the tissues. Therefore, Treg mechanisms, such as those induced and maintained by gut mucosal tolerance for the microbiota, can play a role by targeting the more conserved HSP peptide sequences in the inflamed tissues. In addition, the stress upregulated presence of HSP in these tissues may well assist the targeting of the HSP induced Treg specifically to the sites of inflammation.
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Affiliation(s)
- Ariana Barbera Betancourt
- Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, Netherlands
| | - Qingkang Lyu
- Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, Netherlands
| | - Femke Broere
- Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, Netherlands
| | - Alice Sijts
- Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, Netherlands
| | - Victor P M G Rutten
- Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, Netherlands
| | - Willem van Eden
- Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, Netherlands
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Marouen S, du Cailar G, Audo R, Lukas C, Vial G, Tournadre A, Barrat E, Ribstein J, Combe B, Morel J, Daien CI. Sodium excretion is higher in patients with rheumatoid arthritis than in matched controls. PLoS One 2017; 12:e0186157. [PMID: 29028829 PMCID: PMC5640209 DOI: 10.1371/journal.pone.0186157] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 09/26/2017] [Indexed: 01/06/2023] Open
Abstract
Objective It was shown that sodium can promote auto-immunity through the activation of the Th17 pathway. We aimed to compare sodium intake in patients with rheumatoid arthritis (RA) vs. matched controls. Methods This case-control study included 24 patients with RA at diagnosis and 24 controls matched by age, gender and body mass index. Sodium intake was evaluated by 24-hr urinary sodium excretion. Results Sodium excretion was greater for patients with early RA (2,849±1,350 vs. 2,182±751.7mg/day, p = 0.039) than controls. This difference remained significant after adjustment for smoking and the use of anti-hypertensive and nonsteroidal anti-inflammatory drugs (p = 0.043). Patients with radiographic erosion at the time of diagnosis had a higher sodium excretion than those without (p = 0.028). Conclusion Patients with early RA showed increased sodium excretion which may have contributed to autoimmunity.
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Affiliation(s)
- Sarah Marouen
- Rheumatology Department, Lapeyronie Hospital and Montpellier University, Montpellier, France
| | - Guilhem du Cailar
- Internal medicine and hypertension, Lapeyronie Hospital and Montpellier University, Montpellier, France
| | - Rachel Audo
- Rheumatology Department, Lapeyronie Hospital and Montpellier University, Montpellier, France
- Institute of molecular genetic, UMR5535, CNRS, Montpellier, France
| | - Cedric Lukas
- Rheumatology Department, Lapeyronie Hospital and Montpellier University, Montpellier, France
| | - Gaelle Vial
- Rheumatology Department, Gabriel-Montpied Hospital and Clermont-Ferrand University, Clermont-Ferrand, France
| | - Anne Tournadre
- Rheumatology Department, Gabriel-Montpied Hospital and Clermont-Ferrand University, Clermont-Ferrand, France
| | | | - Jean Ribstein
- Internal medicine and hypertension, Lapeyronie Hospital and Montpellier University, Montpellier, France
| | - Bernard Combe
- Rheumatology Department, Lapeyronie Hospital and Montpellier University, Montpellier, France
- Institute of molecular genetic, UMR5535, CNRS, Montpellier, France
| | - Jacques Morel
- Rheumatology Department, Lapeyronie Hospital and Montpellier University, Montpellier, France
- Institute of molecular genetic, UMR5535, CNRS, Montpellier, France
| | - Claire I. Daien
- Rheumatology Department, Lapeyronie Hospital and Montpellier University, Montpellier, France
- Institute of molecular genetic, UMR5535, CNRS, Montpellier, France
- * E-mail:
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Schmalz G, Davarpanah I, Jäger J, Mausberg RF, Krohn-Grimberghe B, Schmidt J, Haak R, Sack U, Ziebolz D. MMP-8 and TIMP-1 are associated to periodontal inflammation in patients with rheumatoid arthritis under methotrexate immunosuppression - First results of a cross-sectional study. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2017; 52:386-394. [PMID: 28919284 DOI: 10.1016/j.jmii.2017.07.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 06/24/2017] [Accepted: 07/05/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Aim of this cross-sectional study was the investigation of associations between different rheumatoid arthritis (RA)-related blood parameters and periodontal condition as well as selected periodontal pathogenic bacteria in RA patients under methotrexate (MTX) immunosuppression. METHODS Periodontal probing depth (PPD), bleeding on probing (BOP) and clinical attachment loss (CAL) were assessed. Periodontal condition was classified into: no/mild and moderate or severe periodontitis (P). Prevalence of selected periodontal pathogenic bacteria and concentration of matrix metalloproteinase 8 (MMP-8) was assessed from the gingival crevicular fluid (GCF) using PCR and ELISA, respectively. Blood samples were analyzed for the concentration of selected rheumatoid parameters. STATISTICAL ANALYSIS t-test, Mann-Whitney-U-Test, exact Fisher tests or chi square test (p < 0.05). RESULTS Fifty-six patients (mean age 55.07 years, 34 P, 22 no P) were included. While prevalence of periodontal pathogenic bacteria was higher in P patients, no substantial association of bacteria with blood parameters was found. In periodontal diseased participants, MMP-8 concentration in GCF (6.22 ± 7.01 vs. 15.99 ± 13.49; p < 0.01) and blood (2.60 ± 3.57 vs. 5.52 ± 5.92; p < 0.01) was increased, while no correlation between GCF and blood was found (Spearman's rho: 0.175; p = 0.23). Furthermore, higher blood concentrations of MMP-8 and tissue inhibitor of MMP (TIMP-1) were detected in patients with increased periodontal inflammation (BOP positive, p < 0.01). CONCLUSION Periodontal inflammation appears associated to MMP-8 and TIMP-1 in blood. Thereby, clinical interaction between periodontal conditions, periodontal pathogenic bacteria and RA-related cytokines remain unclear.
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Affiliation(s)
- G Schmalz
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - I Davarpanah
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - J Jäger
- Dept. of Preventive Dentistry, Periodontology and Cariology, University Medical Center Goettingen, Germany
| | - R F Mausberg
- Dept. of Preventive Dentistry, Periodontology and Cariology, University Medical Center Goettingen, Germany
| | | | - J Schmidt
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - R Haak
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - U Sack
- Institute of Clinical Immunology, Medical Faculty, University of Leipzig, Germany
| | - Dirk Ziebolz
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany.
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You Z, Timilshina M, Jeong BS, Chang JH. BJ-2266 ameliorates experimental autoimmune encephalomyelitis through down-regulation of the JAK/STAT signaling pathway. Eur J Immunol 2017; 47:1488-1500. [PMID: 28681958 DOI: 10.1002/eji.201646860] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 05/11/2017] [Accepted: 07/03/2017] [Indexed: 12/24/2022]
Abstract
CD4+ T cells differentiate into distinct effector subsets upon antigenic stimulation. Cytokines, and micro-environmental factors present during T-cell priming, direct differentiation of naïve CD4+ T cells into pro-inflammatory Th1 and Th17 cells. From extensive screening of 2,4,5-trimethylpyridin-3-ol derivatives with various functional groups at C(6)-position, BJ-2266, a 6-thioureido-derivative, showed potent inhibitory activity on in vitro T helper (Th)-cell differentiation. This compound inhibited IFN-γ and IL-17 production from polyclonal CD4+ T cells and ovalbumin (OVA)-specific CD4+ T cells that were activated by T-cell receptor (TCR) engagement. We assessed the inhibitory effect of BJ-2266 in experimental autoimmune encephalomyelitis (EAE). Our results suggest that BJ-2266 treatment significantly suppresses EAE disease progression with reduced generation of Th1 and Th17 cells. Notably, Th-cell differentiation was significantly suppressed by BJ-2266 treatment with no effect on apoptosis, activation and proliferation of activated T cells. Furthermore, adoptive transfer of BJ-2266 treated MOG-reactive Th1 and Th17 cells led to a lower EAE disease score and better clinical recovery from EAE. The underlying mechanism of BJ-2266 effect involved the inhibition of JAK/STAT phosphorylation that is critical for Th-cell differentiation. We conclude that BJ-2266 regulates the JAK/STAT pathway in response to cytokine signals and subsequently suppresses the differentiation of Th-cell responses.
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Affiliation(s)
- Zhiwei You
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | | | - Byeong-Seon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Jae-Hoon Chang
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
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Kang Y, Timilshina M, Nam TG, Jeong BS, Chang JH. BJ-1108, a 6-Amino-2,4,5-trimethylpyridin-3-ol analogue, regulates differentiation of Th1 and Th17 cells to ameliorate experimental autoimmune encephalomyelitis. Biol Res 2017; 50:8. [PMID: 28241881 PMCID: PMC5330010 DOI: 10.1186/s40659-017-0113-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 02/18/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND CD4+ T cells play an important role in the initiation of an immune response by providing help to other cells. Among the helper T subsets, interferon-γ (IFN-γ)-secreting T helper 1 (Th1) and IL-17-secreting T helper 17 (Th17) cells are indispensable for clearance of intracellular as well as extracellular pathogens. However, Th1 and Th17 cells are also associated with pathogenesis and contribute to the progression of multiple inflammatory conditions and autoimmune diseases. RESULTS In the current study, we found that BJ-1108, a 6-aminopyridin-3-ol analogue, significantly inhibited Th1 and Th17 differentiation in vitro in a concentration-dependent manner, with no effect on proliferation or apoptosis of activated T cells. Moreover, BJ-1108 inhibited differentiation of Th1 and Th17 cells in ovalbumin (OVA)-specific OT II mice. A complete Freund's adjuvant (CFA)/OVA-induced inflammatory model revealed that BJ-1108 can reduce generation of proinflammatory Th1 and Th17 cells. Furthermore, in vivo studies showed that BJ-1108 delayed onset of disease and suppressed experimental autoimmune encephalomyelitis (EAE) disease progression by inhibiting differentiation of Th1 and Th17 cells. CONCLUSIONS BJ-1108 treatment ameliorates inflammation and EAE by inhibiting Th1 and Th17 cells differentiation. Our findings suggest that BJ-1108 is a promising novel therapeutic agent for the treatment of inflammation and autoimmune disease.
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Affiliation(s)
- Youra Kang
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | | | - Tae-Gyu Nam
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Byeong-Seon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - Jae-Hoon Chang
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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Gu Y, Shi S. Transplantation of gingiva-derived mesenchymal stem cells ameliorates collagen-induced arthritis. Arthritis Res Ther 2016; 18:262. [PMID: 27836015 PMCID: PMC5106846 DOI: 10.1186/s13075-016-1160-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/20/2016] [Indexed: 12/29/2022] Open
Abstract
Background Rheumatoid arthritis (RA) is a chronic, progressive, and inflammatory autoimmune disease which primarily affects the small arthrodial joints. The aim of this study was to test whether transplantation of mesenchymal stem cells derived from gingival tissue (GMSCs) could ameliorate collagen-induced arthritis (CIA), and to explore the role of the FasL/Fas pathway in the underlying mechanism. Methods DBA/1 mice with collagen II-induced arthritis were treated with GMSCs from the C57BL/6 J mouse, the B6Smn.C3-FasLgld/J mouse (FasL–/– GMSCs), and FasL overexpressed FasL–/– GMSCs (FasL TF GMSCs). Inflammation was evaluated by measuring clinical score, tumor necrosis factor (TNF)-α and anti-collagen II antibody levels, and histological analyses. The levels of CD4+ Th cell subsets in spleens and draining lymph nodes were assessed by flow cytometric analysis. Results Systemic infusion of GMSCs can significantly reduce the severity of experimental arthritis, and resume the balance of Th cell subsets. FasL–/– GMSCs failed to induce apoptosis of activated T cells in vitro and in vivo, and therefore show no therapeutic effects, whereas FasL TF GMSCs can rescue the immunosuppressant effects in the treatment of CIA. Conclusions GMSC-based therapy induces T-cell apoptosis via the FasL/Fas pathway and results in immune tolerance and amelioration of the CIA inflammation.
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Affiliation(s)
- Yongchun Gu
- Department of Dentistry, First People's Hospital of Wujiang Dist., Nantong University, Suzhou, China. .,Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, USA.
| | - Songtao Shi
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, USA.
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Sapir-Koren R, Livshits G. Rheumatoid arthritis onset in postmenopausal women: Does the ACPA seropositive subset result from genetic effects, estrogen deficiency, skewed profile of CD4(+) T-cells, and their interactions? Mol Cell Endocrinol 2016; 431:145-63. [PMID: 27178986 DOI: 10.1016/j.mce.2016.05.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 05/04/2016] [Accepted: 05/09/2016] [Indexed: 12/28/2022]
Abstract
Rheumatoid arthritis (RA) incidence displays a differentiated age-dependent female-to-male ratio in which women outnumber men. Evidence that the peak incidence of RA in women coincides with menopause age, suggests a potential estrogenic role to disease etiology. Estrogens exert physiologically both stimulatory and inhibitory effects on the immune system. Epidemiologic and animal model studies with estrogen deprivation or supplementation suggested estrogens as to play, mainly, a protective role in RA immunopathology. In this review, we propose that some yet unidentified disturbances associated with estrogen circulating levels, differentiated by the menopausal status, play a major role in women's RA susceptibility. We focus on the interaction between estrogen deprivation and genetic risk alleles for anti-citrullinated protein antibodies (ACPA) seropositive RA, as a major driving force for increased immune reactivity and RA susceptibility, in postmenopausal women. This opens up new fields for research concerning the association among different irregular estrogenic conditions, the cytokine milieu, and age/menopausal status bias in RA.
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Affiliation(s)
- Rony Sapir-Koren
- Human Population Biology Research Group, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Gregory Livshits
- Human Population Biology Research Group, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Lilian and Marcel Pollak Chair of Biological Anthropology, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
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APL-1, an altered peptide ligand derived from heat-shock protein, alone or combined with methotrexate attenuates murine collagen-induced arthritis. Clin Exp Med 2016; 17:209-216. [PMID: 27160252 DOI: 10.1007/s10238-016-0412-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 02/13/2016] [Indexed: 12/19/2022]
Abstract
Induction of tolerance to autoantigens in vivo is a complex process that involves several mechanisms such as the induction of regulatory T cells and changes in the cytokine and chemokine profiles. This approach represents an attractive alternative for treatment of autoimmune diseases. APL-1 is an altered peptide ligand derived from a novel CD4 + T cell epitope of human heat-shock protein of 60 kDa (HSP60), an autoantigen involved in the pathogenesis of rheumatoid arthritis (RA). We have shown previously that this peptide efficiently inhibited the course of adjuvant-induced arthritis in Lewis rats and induced regulatory T cell (Treg) in ex vivo assay with PBMC isolated from RA patients. This study was undertaken to evaluate the therapeutic effect of APL-1 and its combination with methotrexate (MTX) in collagen-induced arthritis (CIA). CIA was induced in male DBA/1 mice at 8 weeks of age by immunization with chicken collagen. APL, MTX or both were administrated beginning from arthritis onset. Therapeutic effect was evaluated by arthritis and joint pathologic scores. In addition, TNFα and IL-10 in sera were measured by ELISA. Treg induction was assessed by FACS analysis. APL-1 inhibits efficiently the course of arthritis in CIA, similar to MTX. In addition, therapy with APL-1 plus MTX reduced CIA in mice, associated with an increase in Treg. These facts reinforce the therapeutic possibilities of APL-1 as a candidate drug for treatment of RA.
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Chabbi-Achengli Y, Coman T, Collet C, Callebert J, Corcelli M, Lin H, Rignault R, Dy M, de Vernejoul MC, Côté F. Serotonin Is Involved in Autoimmune Arthritis through Th17 Immunity and Bone Resorption. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 186:927-37. [DOI: 10.1016/j.ajpath.2015.11.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 10/28/2015] [Accepted: 11/24/2015] [Indexed: 10/22/2022]
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Yuan X, Tong B, Dou Y, Wu X, Wei Z, Dai Y. Tetrandrine ameliorates collagen-induced arthritis in mice by restoring the balance between Th17 and Treg cells via the aryl hydrocarbon receptor. Biochem Pharmacol 2016; 101:87-99. [DOI: 10.1016/j.bcp.2015.11.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 11/24/2015] [Indexed: 10/22/2022]
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Zhou P, Zhang Q, Zhao Y, Sha H, Cao X, Wang Y. IL-17 promoted the inhibition of medulloblastoma in mice by splenocyte injection. Eur J Med Res 2015; 20:98. [PMID: 26684834 PMCID: PMC4683752 DOI: 10.1186/s40001-015-0191-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 12/11/2015] [Indexed: 01/07/2023] Open
Abstract
Background Interleukin 17 (IL-17) is a proinflammatory cytokine produced by a new subset of activated CD4+ T cells, Th17 cells. We previously showed that increased Th17 cell populations were presented in human medulloblastoma-infiltrating T cells and peripheral blood. In this study, we attempted to address the possible role of Th17 cells in the biologic activity of IL-17 for tumor control. Methods We grafted fresh surgically obtained medulloblastoma into syngeneic athymic nude/nude mice. We intrapertonially injected splenocyte and murine IL-17 in mice on the second day. The tumor volume and the life spans of the mice were measured. Meanwhile, the IL-17, IL-6, IL-23, Ccl2, Ccl20 and IFN-gamma expression in the tumors was also examined by real-time PCR, Western blot and enzyme-linked immunosorbent assay. Results We found that medulloblastoma growth in IL-17-injected mice was significantly inhibited compared to the non-IL-17 treated mice. In contrast to the IL-17 antitumor activity observed in mice injected with splenocytes, we observed that IFN-gamma, IL-6, IL-23, Ccl2, and Ccl20 proteins were significantly increased in tumor tissues of mice injected with IL-17. Conclusions These experiments suggest that IL-17 may promote splenocyte antitumor activity in medulloblastoma. We postulate that IL-17’s antitumor activity may be related to the increased protein levels of IFN-gamma, IL-6, IL-23, Ccl2, and Ccl20.
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Affiliation(s)
- Ping Zhou
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Qilin Zhang
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Yao Zhao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Hongying Sha
- Institute of Biomedical Sciences, Fudan University, Shanghai, 200032, China.
| | - Xiaoyun Cao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Yongfei Wang
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
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Malemud CJ, Lewis AC, Wylie MA, Meszaros EC, Skomorovska-Prokvolit Y, Mesiano S. U0126, an Inhibitor of MEK1/2, Increases Tumor Necrosis Factor-α-Induced Apoptosis, but not Interleukin-6 Induced Apoptosis in C-28/I2 Human Chondrocytes. ACTA ACUST UNITED AC 2015; 1. [PMID: 26855970 DOI: 10.21767/2471-8153.100004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Activation of the SAPK/MAPK signaling pathway by pro-inflammatory cytokines is known to induce apoptosis in cultured articular chondrocytes. C-28/I2, an immortalized human juvenile chondrocyte cell line was employed to determine the extent to which recombinant human (rh) forms of the pro-inflammatory cytokines, tumor necrosis factor-α (rhTNF-α,), interleukin-6 (rhIL-6) and oncostatin M (rhOSM) induced apoptosis. METHODS The induction of apoptosis in the presence or absence of these cytokines was measured by the DAPI/TUNEL assay, by whether or not pro-caspase-3 was activated and by the extent to which poly-ADP-ribose polymerase (PARP) was degraded. FINDINGS Only rhTNF-α, and rhIL-6 significantly increased apoptosis in C-28/I2 chondrocytes, although rhOSM exhibited a strong trend (p=0.067) towards increasing the frequency of apoptotic chondrocytes. The number of apoptotic C28/I2 chondrocytes was significantly increased (p=1.3 × 10-5) by the combination of rhTNF-α and U0126 (10 μM) compared to rhTNF-α alone. However apoptosis was not further increased by combining rhIL-6 with U0126. The LI-COR® western blot system showed that U0126 (10 μM) inhibited the phosphorylation of extracellular signal-regulated kinase-2 (p-ERK2) by phorbol myristate acetate-treated immortalized myometrial cells, U0126 (10 μM) did not alter total U-ERK2. Western blot analysis also revealed that the increased frequency of apoptotic C-28/I2 chondrocytes induced by rhTNF-α and rhOSM, but not rhIL-6, was associated with PARP degradation. However, none of the cytokines resulted in pro-caspase-3 activation. CONCLUSION These results showed that rhTNF-α and rhIL-6 were strong inducers of apoptosis in the immortalized C-28/I2 human chondrocyte cell line. They also suggested that inhibiting ERK2 phosphorylation via U0126-mediated inhibition of MEK1/2 activity, increased rhTNF-α-induced C-28/I2 chondrocyte apoptosis.
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Affiliation(s)
- Charles J Malemud
- Arthritis Research Laboratory, Department of Medicine, Division of Rheumatic Diseases; Department of Anatomy, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106 USA
| | - Aaron C Lewis
- Arthritis Research Laboratory, Department of Medicine, Division of Rheumatic Diseases
| | - Meredith A Wylie
- Arthritis Research Laboratory, Department of Medicine, Division of Rheumatic Diseases
| | - Evan C Meszaros
- Arthritis Research Laboratory, Department of Medicine, Division of Rheumatic Diseases
| | | | - Sam Mesiano
- Department of Reproductive Biology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106 USA
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Meguro K, Suzuki K, Hosokawa J, Sanayama Y, Tanaka S, Furuta S, Ikeda K, Takatori H, Suto A, Sakamoto A, Ohara O, Nakajima H. Role of Bcl-3 in the Development of Follicular Helper T Cells and in the Pathogenesis of Rheumatoid Arthritis. Arthritis Rheumatol 2015; 67:2651-60. [DOI: 10.1002/art.39266] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 06/25/2015] [Indexed: 12/12/2022]
Affiliation(s)
| | - Kotaro Suzuki
- Chiba University Graduate School of Medicine; Chiba Japan
| | | | | | - Shigeru Tanaka
- Chiba University Graduate School of Medicine; Chiba Japan
| | | | - Kei Ikeda
- Chiba University Graduate School of Medicine; Chiba Japan
| | | | - Akira Suto
- Chiba University Graduate School of Medicine; Chiba Japan
| | - Akemi Sakamoto
- Chiba University Graduate School of Medicine; Chiba Japan
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Lymphopenia in early arthritis: Impact on diagnosis and 3-year outcomes (ESPOIR cohort). Joint Bone Spine 2015; 82:417-22. [PMID: 26184529 DOI: 10.1016/j.jbspin.2015.02.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 02/17/2015] [Indexed: 11/23/2022]
Abstract
OBJECTIVES In patients with early arthritis naive to disease-modifying antirheumatic drugs, we evaluated the prevalence of initial and persistent lymphopenia, underlying diagnoses, and risk of infection or malignancy. METHODS Eight hundred and thirteen patients with early arthritis included in the ESPOIR cohort had a clinical examination, laboratory tests (viral serology, immunological tests, and cytokine profile), and radiographs. We determined the prevalence of lymphopenia at baseline and after 3 years, associated factors, diagnoses, and risk of infection or malignancy. RESULTS At baseline, 50/813 (6.2%) patients had lymphopenia. Lymphopenia was associated with positive rheumatoid factor (P=0.02), cytopenia (P≤0.05), hepatitis C (P=0.05), higher C-reactive protein and DAS28 (P≤0.05 for both). Cytokine profile and radiological progression were not significantly different between patients with and without lymphopenia. Suspected diagnoses at inclusion were rheumatoid arthritis (RA, n=27), unclassified arthritis (n=15), systemic lupus erythematosus (SLE, n=3), spondyloarthritis (n=2), Sjögren's syndrome (n=1), hematologic disease (n=1), and fibromyalgia (n=1). Fifteen patients out of 42 (35.7%) with initial lymphopenia had persistent lymphopenia after 3 years, including 5 with documented causes (lupus, hepatitis C, undernutrition, azathioprine, and tamoxifen); none had PVB19, HIV, or HBV infection and none experienced infections, solid or hematologic malignancies during follow-up. Final diagnoses in these 15 patients were RA (n=6), unclassified arthritis (n=6), SLE (n=1), spondyloarthritis (n=1), and fibromyalgia (n=1). CONCLUSIONS Lymphopenia is rare in early arthritis. The most common rheumatic cause is RA, in which marked inflammation and other cytopenias are common. Lymphopenia in early arthritis is often short-lived, even when methotrexate is prescribed.
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Abstract
The most common diseases of the joints and its tissues are osteoarthritis and rheumatoid arthritis, with osteoarthritis being anticipated to be the fourth leading cause of disability by the year 2020. To date, no truly causal therapies are available, and this has promoted tissue engineering attempts mainly involving mesenchymal stem cells. The goal of all tissue repairs would be to restore a fully functional tissue, here a hyaline articular cartilage. The hyaline cartilage is the most affected in osteoarthritis, where altered cell–matrix interactions gradually destroy tissue integrity. In rheumatoid arthritis, the inflammatory aspect is more important, and the cartilage tissue is destroyed by the invasion of tumor-like pannus tissue arising from the inflamed synovia. Furthermore, the fibrocartilage of the meniscus is clearly involved in the initiation of osteoarthritis, especially after trauma. Recent investigations have highlighted the role of migratory progenitor cells found in diseased tissues in situ. In osteoarthritis and rheumatoid arthritis, these chondrogenic progenitor cells are involved in regeneration efforts that are largely unsuccessful in diseased cartilage tissue. However, these progenitor cells are interesting targets for a cell-based regenerative therapy for joint diseases.
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Affiliation(s)
- Boris Schminke
- Tissue Regeneration Work Group, Department of Prosthodontics, Georg August University, Robert-Koch-Str. 40, 37075, Göttingen, Germany
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Kim JE, Chae CS, Kim GC, Hwang W, Hwang JS, Hwang SM, Kim Y, Ahn YT, Park SG, Jun CD, Rudra D, Im SH. Lactobacillus helveticus suppresses experimental rheumatoid arthritis by reducing inflammatory T cell responses. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.01.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Dong L, Wang X, Tan J, Li H, Qian W, Chen J, Chen Q, Wang J, Xu W, Tao C, Wang S. Decreased expression of microRNA-21 correlates with the imbalance of Th17 and Treg cells in patients with rheumatoid arthritis. J Cell Mol Med 2014; 18:2213-24. [PMID: 25164131 PMCID: PMC4224555 DOI: 10.1111/jcmm.12353] [Citation(s) in RCA: 168] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Accepted: 05/22/2014] [Indexed: 12/15/2022] Open
Abstract
The imbalance of Th17/Treg cell populations has been suggested to be involved in the regulation of rheumatoid arthritis (RA) pathogenesis; however, the mechanism behind this phenomenon remains unclear. Recent studies have shown how microRNAs (miRNAs) are important regulators of immune responses and are involved in the development of a variety of inflammatory diseases, including RA. In this study, we demonstrated that the frequencies of CD3(+) CD4(+) IL-17(+) Th17 cells were significantly higher, and CD4(+) CD25(+) FOXP3(+) Treg cells significantly lower in peripheral blood mononuclear cells from RA patients. Detection of cytokines from RA patients revealed an elevated panel of pro-inflammatory cytokines, including IL-17, IL-6, IL-1β, TNF-α and IL-22, which carry the inflammatory signature of RA and are crucial in the differentiation and maintenance of pathogenic Th17 cells and dysfunction of Treg cells. However, the level of miR-21 was significantly lower in RA patients, accompanied by the increase in STAT3 expression and activation, and decrease in STAT5/pSTAT5 protein and Foxp3 mRNA levels. Furthermore, lipopolysaccharide stimulation up-regulated miR-21 expression from healthy controls, but down-regulated miR-21 expression from RA patients. Therefore, we speculate that miR-21 may be part of a negative feedback loop in the normal setting. However, miR-21 levels decrease significantly in RA patients, suggesting that this feedback loop is dysregulated and may contribute to the imbalance of Th17 and Treg cells. MiR-21 may thus serve as a novel regulator in T-cell differentiation and homoeostasis, and provides a new therapeutic target for the treatment of RA.
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Affiliation(s)
- Liyang Dong
- Department of Central Laboratory, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, Jiangsu, China
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Abstract
Juvenile idiopathic arthritis (JIA)-associated uveitis is an intriguing manifestation of JIA and an important contributor of long-term damage. Its pathophysiology is still poorly understood. This review summarizes current concepts. JIA is both a multifactorial and polygenetic disease. In the past 2 decades, multiple studies have indicated that the genetic contribution to both JIA and JIA-associated uveitis is modest. From an ophthalmological point of view, much of the pathophysiological data is derived from studies in experimental uveitis animal models. The pathophysiology of the arthritic manifestations of JIA has been studied extensively in humans. These studies have focused on the principal cells of the adaptive immune system, in particular different subsets of regulatory and effector T cells, as well as on antigen presenting cells or dendritic cells. With advancing technology and advancing knowledge of the underlying mechanisms of JIA-associated uveitis, new targets for therapy might evolve in the coming years.
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Affiliation(s)
- Sebastiaan J Vastert
- Department of Pediatric Rheumatology, Wilhelmina Children's Hospital, University Medical Center Utrecht , The Netherlands and
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Put S, Westhovens R, Lahoutte T, Matthys P. Molecular imaging of rheumatoid arthritis: emerging markers, tools, and techniques. Arthritis Res Ther 2014; 16:208. [PMID: 25099015 PMCID: PMC4061725 DOI: 10.1186/ar4542] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 04/08/2014] [Indexed: 12/18/2022] Open
Abstract
Early diagnosis and effective monitoring of rheumatoid arthritis (RA) are important for a positive outcome. Instant treatment often results in faster reduction of inflammation and, as a consequence, less structural damage. Anatomical imaging techniques have been in use for a long time, facilitating diagnosis and monitoring of RA. However, mere imaging of anatomical structures provides little information on the processes preceding changes in synovial tissue, cartilage, and bone. Molecular imaging might facilitate more effective diagnosis and monitoring in addition to providing new information on the disease pathogenesis. A limiting factor in the development of new molecular imaging techniques is the availability of suitable probes. Here, we review which cells and molecules can be targeted in the RA joint and discuss the advances that have been made in imaging of arthritis with a focus on such molecular targets as folate receptor, F4/80, macrophage mannose receptor, E-selectin, intercellular adhesion molecule-1, phosphatidylserine, and matrix metalloproteinases. In addition, we discuss a new tool that is being introduced in the field, namely the use of nanobodies as tracers. Finally, we describe additional molecules displaying specific features in joint inflammation and propose these as potential new molecular imaging targets, more specifically receptor activator of nuclear factor κB and its ligand, chemokine receptors, vascular cell adhesion molecule-1, αVβ₃ integrin, P2X7 receptor, suppression of tumorigenicity 2, dendritic cell-specific transmembrane protein, and osteoclast-stimulatory transmembrane protein.
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Azizi G, Jadidi-Niaragh F, Mirshafiey A. Th17 Cells in Immunopathogenesis and treatment of rheumatoid arthritis. Int J Rheum Dis 2014; 16:243-53. [PMID: 23981743 DOI: 10.1111/1756-185x.12132] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by the sequestration of various leukocyte subpopulations within both the developing pannus and synovial space. The chronic nature of this disease results in inflammation of multiple joints, with subsequent destruction of the joint cartilage and erosion of bone. Identification of T helper (Th)17 cells led to breaking the dichotomy of the Th1/Th2 axis in immunopathogenesis of autoimmune diseases such as RA, and its experimental model, collagen-induced arthritis (CIA). Th17 cells produce cytokines, including interleukin (IL)-17, IL-6, IL-21, IL-22 and tumor necrosis factor (TNF)-α, with pro-inflammatory effects, which appear to have a role in immunopathogenesis of RA. Regarding the wide ranging production of pro-inflammatory cytokines and chemokines by Th17 cells, it is expected that Th17 cell could be a potent pathogenic factor in disease immunopathophysiology. Thus the identification of effector mechanisms used by Th17 cells in induction of disease lesions may open new prospects for designing a new therapeutic strategy for treatment of RA.
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Affiliation(s)
- Gholamreza Azizi
- Imam Hassan Mojtaba Hospital, Alborz University of Medical Sciences, Karaj, Iran
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Sharp C, Powari M, Mascarenhas R, Spiers A, Froeschle PO, Patel BD, Silver DA, Maher TM, Gibbons MA. Case-based discussion from the Royal Devon and Exeter NHS Foundation Trust: a painful paradox. Thorax 2014; 69:779-81. [PMID: 24584169 DOI: 10.1136/thoraxjnl-2013-205077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Charles Sharp
- Department of Respiratory Medicine, North Bristol NHS Trust, Bristol, UK
| | - Manish Powari
- Histopathology Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Ravik Mascarenhas
- Rheumatology Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Alexander Spiers
- Radiology Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Peter O Froeschle
- Department of Thoracic Surgery, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Bipen D Patel
- Respiratory Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - David A Silver
- Radiology Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Toby M Maher
- Interstitial Lung Disease Unit, Royal Brompton, London, UK
| | - Michael A Gibbons
- Respiratory Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
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