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Kulhari U, Ambujakshan A, Ahmed M, Washimkar K, Kachari J, Mugale MN, Sahu BD. Nuciferine inhibits TLR4/NF-κB/MAPK signaling axis and alleviates adjuvant-induced arthritis in rats. Eur J Pharmacol 2024; 982:176940. [PMID: 39182545 DOI: 10.1016/j.ejphar.2024.176940] [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: 03/11/2024] [Revised: 07/26/2024] [Accepted: 08/22/2024] [Indexed: 08/27/2024]
Abstract
Rheumatoid arthritis is an inflammatory condition primarily affecting the joints. Nuciferine (NCF), a key bioactive aporphine alkaloid biosynthesized in lotus leaves, exhibits promising anti-inflammatory and antioxidant properties. In this study, we investigated whether NCF could alleviate inflammatory arthritis conditions in a complete Freund's adjuvant (CFA)-mediated arthritis model in rats. The arthritis model was established through intradermal injection of CFA (100 μL) in the sub-plantar region of the right hind paw. The arthritic animals were treated orally with NCF at 5 and 10 mg/kg and indomethacin (Indo) at 5 mg/kg body weight as reference control. NCF treatment remarkably alleviated inflammatory joint swelling and arthritic index. The radiological and histological analysis revealed evidence of the beneficial effects of NCF. NCF treatment decreased the content of pro-inflammatory cytokines (TNF-α and IL-1β) and myeloperoxidase (MPO) activity and restored the anti-inflammatory cytokine (IL-10) in the paw joints. The serum levels of pro-inflammatory cytokines were also markedly reduced in the NCF (10 mg/kg) treatment group. Moreover, the arthritis-induced inflammatory mediators, including cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS) and the toll-like receptor (TLR)-4, mitogen-activated protein kinase (MAPK), and nuclear factor-κB (NF-κB) signaling proteins were substantially decreased in the NCF treatment groups. NCF treatment also restored the antioxidant defense enzymes and abrogated lipid peroxidation in the paw tissue. Our findings strongly suggest that NCF is a promising therapeutic molecule for rheumatoid arthritis, inspiring further research, and development in this area.
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Affiliation(s)
- Uttam Kulhari
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Anju Ambujakshan
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Momitul Ahmed
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India
| | - Kaveri Washimkar
- Toxicology & Experimental Medicine, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India
| | - Jodumoni Kachari
- Department of Veterinary Surgery and Radiology, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, 781022, India
| | - Madhav Nilakanth Mugale
- Toxicology & Experimental Medicine, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India
| | - Bidya Dhar Sahu
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, 781101, Assam, India.
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Korzun T, Moses AS, Jozic A, Grigoriev V, Newton S, Kim J, Diba P, Sattler A, Levasseur PR, Le N, Singh P, Sharma KS, Goo YT, Mamnoon B, Raitmayr C, Mesquita Souza AP, Taratula OR, Sahay G, Taratula O, Marks DL. Lipid Nanoparticles Elicit Reactogenicity and Sickness Behavior in Mice Via Toll-Like Receptor 4 and Myeloid Differentiation Protein 88 Axis. ACS NANO 2024; 18:24842-24859. [PMID: 39186628 DOI: 10.1021/acsnano.4c05088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
mRNA therapeutics encapsulated in lipid nanoparticles (LNPs) offer promising avenues for treating various diseases. While mRNA vaccines anticipate immunogenicity, the associated reactogenicity of mRNA-loaded LNPs poses significant challenges, especially in protein replacement therapies requiring multiple administrations, leading to adverse effects and suboptimal therapeutic outcomes. Historically, research has primarily focused on the reactogenicity of mRNA cargo, leaving the role of LNPs understudied in this context. Adjuvanticity and pro-inflammatory characteristics of LNPs, originating at least in part from ionizable lipids, may induce inflammation, activate toll-like receptors (TLRs), and impact mRNA translation. Knowledge gaps remain in understanding LNP-induced TLR activation and its impact on induction of animal sickness behavior. We hypothesized that ionizable lipids in LNPs, structurally resembling lipid A from lipopolysaccharide, could activate TLR4 signaling via MyD88 and TRIF adaptors, thereby propagating LNP-associated reactogenicity. Our comprehensive investigation utilizing gene ablation studies and pharmacological receptor manipulation proves that TLR4 activation by LNPs triggers distinct physiologically meaningful responses in mice. We show that TLR4 and MyD88 are essential for reactogenic signal initiation, pro-inflammatory gene expression, and physiological outcomes like food intake and body weight─robust metrics of sickness behavior in mice. The application of the TLR4 inhibitor TAK-242 effectively reduces the reactogenicity associated with LNPs by mitigating TLR4-driven inflammatory responses. Our findings elucidate the critical role of the TLR4-MyD88 axis in LNP-induced reactogenicity, providing a mechanistic framework for developing safer mRNA therapeutics and offering a strategy to mitigate adverse effects through targeted inhibition of this pathway.
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Affiliation(s)
- Tetiana Korzun
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 SW Bond Avenue, Portland, Oregon 97239, United States
- Medical Scientist Training Program, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
| | - Abraham S Moses
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Antony Jozic
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Vladislav Grigoriev
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Samuel Newton
- Papé Family Pediatric Research Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Mail Code L481, Portland, Oregon 97239, United States
| | - Jeonghwan Kim
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Parham Diba
- Medical Scientist Training Program, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
- Papé Family Pediatric Research Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Mail Code L481, Portland, Oregon 97239, United States
| | - Ariana Sattler
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, 2720 S Moody Avenue, Portland, Oregon 97201, United States
| | - Peter R Levasseur
- Papé Family Pediatric Research Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Mail Code L481, Portland, Oregon 97239, United States
| | - Ngoc Le
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Prem Singh
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Kongbrailatpam Shitaljit Sharma
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Yoon Tae Goo
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Babak Mamnoon
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Constanze Raitmayr
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Ana Paula Mesquita Souza
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Olena R Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
- Department of Biomedical Engineering, Oregon Health & Science University, 3303 SW Bond Avenue, Portland, Oregon 97239, United States
| | - Gaurav Sahay
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, 2730 S Moody Avenue, Portland, Oregon 97201, United States
| | - Daniel L Marks
- Endevica Bio, 1935 Techny Rd, Northbrook, Illinois 60062, United States
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Bhuvaneshwari S, Venkataraman K, Sankaranarayanan K. Exploring potential ion channel targets for rheumatoid arthritis: combination of network analysis and gene expression analysis. Biotechnol Appl Biochem 2024. [PMID: 39049164 DOI: 10.1002/bab.2638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 06/29/2024] [Indexed: 07/27/2024]
Abstract
Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by chronic inflammation of the synovial membrane that leads to the destruction of cartilage and bone. Currently, pharmacological targeting of ion channels is being increasingly recognized as an attractive and feasible strategy for the treatment of RA. The present work employs a network analysis approach to predict the most promising ion channel target for potential RA-treating drugs. A protein-protein interaction map was generated for 343 genes associated with inflammation in RA and ion channel genes using Search Tool for the Retrieval of Interacting Genes and visualized using Cytoscape. Based on the betweenness centrality and traffic values as key topological parameters, 17 hub nodes were identified, including FOS (9800.85), tumor necrosis factor (3654.60), TGFB1 (3305.75), and VEGFA (3052.88). The backbone network constructed with these 17 hub genes was intensely analyzed to identify the most promising ion channel target using network analyzer. Calcium permeating ion channels, especially store-operated calcium entry channels, and their associated regulatory proteins were found to highly interact with RA inflammatory hub genes. This significant ion channel target for RA identified by theoretical and statistical studies was further validated by a pilot case-control gene expression study. Experimental verification of the above findings in 75 RA cases and 25 controls showed increased ORAI1 expression. Thus, with a combination of network analysis approach and gene expression studies, we have explored potential targets for RA treatment.
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Affiliation(s)
- Sampath Bhuvaneshwari
- Ion Channel Biology Laboratory, AU-KBC Research Centre, Madras Institute of Technology, Anna University, Chennai, India
| | | | - Kavitha Sankaranarayanan
- Ion Channel Biology Laboratory, AU-KBC Research Centre, Madras Institute of Technology, Anna University, Chennai, India
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Stierschneider A, Wiesner C. Shedding light on the molecular and regulatory mechanisms of TLR4 signaling in endothelial cells under physiological and inflamed conditions. Front Immunol 2023; 14:1264889. [PMID: 38077393 PMCID: PMC10704247 DOI: 10.3389/fimmu.2023.1264889] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Toll-like receptor 4 (TLR4) are part of the innate immune system. They are capable of recognizing pathogen-associated molecular patterns (PAMPS) of microbes, and damage-associated molecular patterns (DAMPs) of damaged tissues. Activation of TLR4 initiates downstream signaling pathways that trigger the secretion of cytokines, type I interferons, and other pro-inflammatory mediators that are necessary for an immediate immune response. However, the systemic release of pro-inflammatory proteins is a powerful driver of acute and chronic inflammatory responses. Over the past decades, immense progress has been made in clarifying the molecular and regulatory mechanisms of TLR4 signaling in inflammation. However, the most common strategies used to study TLR4 signaling rely on genetic manipulation of the TLR4 or the treatment with agonists such as lipopolysaccharide (LPS) derived from the outer membrane of Gram-negative bacteria, which are often associated with the generation of irreversible phenotypes in the target cells or unintended cytotoxicity and signaling crosstalk due to off-target or pleiotropic effects. Here, optogenetics offers an alternative strategy to control and monitor cellular signaling in an unprecedented spatiotemporally precise, dose-dependent, and non-invasive manner. This review provides an overview of the structure, function and signaling pathways of the TLR4 and its fundamental role in endothelial cells under physiological and inflammatory conditions, as well as the advances in TLR4 modulation strategies.
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Affiliation(s)
| | - Christoph Wiesner
- Department Science & Technology, Institute Biotechnology, IMC Krems University of Applied Sciences, Krems, Austria
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von Wulffen M, Luehrmann V, Robeck S, Russo A, Fischer-Riepe L, van den Bosch M, van Lent P, Loser K, Gabrilovich DI, Hermann S, Roth J, Vogl T. S100A8/A9-alarmin promotes local myeloid-derived suppressor cell activation restricting severe autoimmune arthritis. Cell Rep 2023; 42:113006. [PMID: 37610870 DOI: 10.1016/j.celrep.2023.113006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 06/11/2023] [Accepted: 08/03/2023] [Indexed: 08/25/2023] Open
Abstract
Immune-suppressive effects of myeloid-derived suppressor cells (MDSCs) are well characterized during anti-tumor immunity. The complex mechanisms promoting MDSC development and their regulatory effects during autoimmune diseases are less understood. We demonstrate that the endogenous alarmin S100A8/A9 reprograms myeloid cells to a T cell suppressing phenotype during autoimmune arthritis. Treatment of myeloid precursors with S100-alarmins during differentiation induces MDSCs in a Toll-like receptor 4-dependent manner. Consequently, knockout of S100A8/A9 aggravates disease activity in collagen-induced arthritis due to a deficit of MDSCs in local lymph nodes, which could be corrected by adoptive transfer of S100-induced MDSCs. Blockade of MDSC function in vivo aggravates disease severity in arthritis. Therapeutic application of S100A8 induces MDSCs in vivo and suppresses the inflammatory phenotype of S100A9ko mice. Accordingly, the interplay of T cell-mediated autoimmunity with a defective innate immune regulation is crucial for autoimmune arthritis, which should be considered for future innovative therapeutic options.
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Affiliation(s)
- Meike von Wulffen
- Institute of Immunology, University of Münster, Münster, Germany; Interdisciplinary Center of Clinical Research (IZKF), University of Münster, Münster, Germany
| | | | - Stefanie Robeck
- Institute of Immunology, University of Münster, Münster, Germany
| | - Antonella Russo
- Institute of Immunology, University of Münster, Münster, Germany
| | | | - Martijn van den Bosch
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Peter van Lent
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Karin Loser
- Department of Human Medicine, University of Oldenburg, Oldenburg, Germany
| | | | - Sven Hermann
- European Institute for Molecular Imaging (EIMI), University of Münster, Münster, Germany
| | - Johannes Roth
- Institute of Immunology, University of Münster, Münster, Germany; Interdisciplinary Center of Clinical Research (IZKF), University of Münster, Münster, Germany
| | - Thomas Vogl
- Institute of Immunology, University of Münster, Münster, Germany; Interdisciplinary Center of Clinical Research (IZKF), University of Münster, Münster, Germany.
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Ryu JH, Park J, Kim BY, Kim Y, Kim NG, Shin YI. Photobiomodulation ameliorates inflammatory parameters in fibroblast-like synoviocytes and experimental animal models of rheumatoid arthritis. Front Immunol 2023; 14:1122581. [PMID: 37063906 PMCID: PMC10090497 DOI: 10.3389/fimmu.2023.1122581] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 03/16/2023] [Indexed: 03/31/2023] Open
Abstract
IntroductionRheumatoid arthritis (RA) is a chronic destructive inflammatory disease that afflicts over one percent of the world’s population. Current pharmacological treatments remain relatively ineffective. In this context, photobiomodulation (PBM) is a potential resource for the treatment of RA. This study investigates investigate the anti-arthritic effects and related mechanisms of PBM on fibroblast-like synoviocytes (FLSs) from RA patients and a mouse model of collagen-induced arthritis (CIA).MethodsThe RA-FLSs were irradiated with a light emitting diode (LED) at a wavelength of 610 nm for 20 min, and the corresponding power intensities were 5 and 10 mW/cm2. After the LED irradiation, cell viability, proliferation, migration, and invasion assays were performed. Male DBA/1J mice were used to establish an animal model of CIA. Light stimulation with 10 mW/cm2 was applied to the ankle joints via direct contact with the skin for 40 min, daily for 2 weeks.Results and DiscussionPBM significantly reduced tumor necrosis factor (TNF)-α-induced increase in proliferation, migration, and invasion in RA-FLSs, and downregulated the activation of nuclear factor-κappa B (NF-κB) and NLRP3 inflammasome by TNF-α. Moreover, PBM greatly inhibited the induction and development of CIA, resulting in the inhibition of synovial inflammation and cartilage degradation. PBM therapy decreased the serum levels of pro-inflammatory cytokines, while increasing the anti-inflammatory cytokines. PBM suppressed the translocation of NF-κB and activation of NLRP3 inflammasome in the ankle joint. Furthermore, PBM showed a more pronounced anti-arthritic effect when combined with methotrexate (MTX), a disease-modifying anti-rheumatic drug (DMARD). The results showed that the effectiveness of MTX + PBM in CIA is superior to that of either MTX or PBM and that both work synergistically. Therefore, PBM with LED may be a potential therapeutic intervention for against RA.
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Affiliation(s)
- Ji Hyeon Ryu
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Jisu Park
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Bo-Young Kim
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Yeonye Kim
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Nam Gyun Kim
- Medical Research Center of Color Seven, Seoul, Republic of Korea
| | - Yong-Il Shin
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
- Department of Rehabilitation Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea
- *Correspondence: Yong-Il Shin,
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Tang X, Xu Q, Yang S, Huang X, Wang L, Huang F, Luo J, Zhou X, Wu A, Mei Q, Zhao C, Wu J. Toll-like Receptors and Thrombopoiesis. Int J Mol Sci 2023; 24:ijms24021010. [PMID: 36674552 PMCID: PMC9864288 DOI: 10.3390/ijms24021010] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Platelets are the second most abundant blood component after red blood cells and can participate in a variety of physiological and pathological functions. Beyond its traditional role in hemostasis and thrombosis, it also plays an indispensable role in inflammatory diseases. However, thrombocytopenia is a common hematologic problem in the clinic, and it presents a proportional relationship with the fatality of many diseases. Therefore, the prevention and treatment of thrombocytopenia is of great importance. The expression of Toll-like receptors (TLRs) is one of the most relevant characteristics of thrombopoiesis and the platelet inflammatory function. We know that the TLR family is found on the surface or inside almost all cells, where they perform many immune functions. Of those, TLR2 and TLR4 are the main stress-inducing members and play an integral role in inflammatory diseases and platelet production and function. Therefore, the aim of this review is to present and discuss the relationship between platelets, inflammation and the TLR family and extend recent research on the influence of the TLR2 and TLR4 pathways and the regulation of platelet production and function. Reviewing the interaction between TLRs and platelets in inflammation may be a research direction or program for the treatment of thrombocytopenia-related and inflammatory-related diseases.
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Affiliation(s)
- Xiaoqin Tang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Qian Xu
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Shuo Yang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Xinwu Huang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Long Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Feihong Huang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Jiesi Luo
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Xiaogang Zhou
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Qibing Mei
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Chunling Zhao
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
- Correspondence: (C.Z.); (J.W.); Tel.: +86-186-8307-3667 (C.Z.); +86-139-8241-6641 (J.W.)
| | - Jianming Wu
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
- Correspondence: (C.Z.); (J.W.); Tel.: +86-186-8307-3667 (C.Z.); +86-139-8241-6641 (J.W.)
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Li J, Wang L, Zeng G, Li H, Luo J, Tian Q, Zhang Z. Chymotrypsin attenuates adjuvant-induced arthritis by downregulating TLR4, NF-κB, MMP-1, TNF-α, IL-1β, and IL-6 expression in Sprague-Dawley rats. Immunopharmacol Immunotoxicol 2022; 44:959-969. [PMID: 35737007 DOI: 10.1080/08923973.2022.2093743] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is mainly characterized by synovial hyperplasia, angiogenesis, inflammatory cells infiltration. Chymotrypsin is a proteolytic enzyme with anti-inflammatory effects. The current project was intended to test the efficacy and mechanism of chymotrypsin in adjuvant-induced arthritis (AIA) rats to provide an experimental basis for the clinical application of chymotrypsin. METHODS Sprague-Dawley rats were injected with complete Freund's adjuvant (CFA) in the hind left paw pad to establish an AIA model. Forty rats were randomly divided into five groups (n = 8): blank; CFA model (model); low-dose chymotrypsin (CLD), 0.53 mg/kg; high-dose chymotrypsin (CHD), 1.06 mg/kg; piroxicam, 10 mg/kg. The treatments were performed in the subplantar region of the left hind paw from Day 8 (D8) to Day 28 after adjuvant injection. The body weight, paw diameter, swelling degree of paw, and arthritic score were measured on D0, D7, D14, D21, and D28. All animals were sacrificed on D29. Subsequently, the synovial tissue of the ankle joint of the rats was stained with HE to generate pathological sections for observation of the pathological changes of synovial tissue from the ankle joint. The protein levels of MMP-1, TNF-α, IL-1β, and IL-6 in the rats' serum were determined by ELISA. Western blotting was used to detect the protein expression of TLR4 and NF-κB in the rat ankle tissue. The mRNA expression of TLR4, NF-κB, IL-1β, IL-6, and TNF-α in synovial tissue of the ankle joint was detected by RT-qPCR. RESULTS The body weight of the rats in each group showed an increasing trend, and there was no significant difference in weight between the groups. CHD and piroxicam suppressed paw swelling and arthritic scores and decreased synovial hyperplasia, inflammatory cell infiltration, pannus formation, and bone destruction. Furthermore, the overproduction of MMP-1, TNF-α, IL-1β, and IL-6 in serum was remarkably attenuated in the chymotrypsin- and piroxicam-treated rats. The protein levels of TLR4 and NF-κB in the synovial tissue of the chymotrypsin group and the piroxicam group were significantly lower than those in the model group. Likewise, the rats treated with chymotrypsin and piroxicam had a substantial decline in the mRNA expression of TLR4, NF-κB, TNF-α, IL-1β, and IL-6 in synovial tissue. CONCLUSIONS Chymotrypsin alleviates the joint damage of AIA rats, probably by reducing the expression of MMP-1, TNF-α, IL-1β, and IL-6 through TLR4/NF-κB signaling pathway.
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Affiliation(s)
- Jianqiang Li
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Linlin Wang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Guangting Zeng
- Department of Pharmacy, The First People's Hospital of Chenzhou, Xiangnan University, Chenzhou, China
| | - Huilan Li
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jia Luo
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qijun Tian
- Jianqiao Pharmaceutical Limited Liability Company of Hunan Province, Changsha, China
| | - Zanling Zhang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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Wong KL, Li Z, Ma F, Wang D, Song N, Chong CH, Luk KK, Leung SO. SM03, an Anti-CD22 Antibody, Converts Cis-to- Trans Ligand Binding of CD22 against α2,6-Linked Sialic Acid Glycans and Immunomodulates Systemic Autoimmune Diseases. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:2726-2737. [PMID: 35688465 DOI: 10.4049/jimmunol.2100820] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 03/08/2022] [Indexed: 06/15/2023]
Abstract
SM03, an anti-CD22 recombinant IgG1 mAb, is currently in a phase III clinical trial for the treatment of rheumatoid arthritis (NCT04312815). SM03 showed good safety and efficacy in phase I systemic lupus erythematosus and phase II moderate to severe rheumatoid arthritis clinical trials. We propose the success of SM03 as a therapeutic to systemic autoimmune diseases is through the utilization of a novel mechanism of action unique to SM03. CD22, an inhibitory coreceptor of the BCR, is a potential immunotherapeutic target against autoimmune diseases. SM03 could disturb the CD22 homomultimeric configuration through disrupting cis binding to α2,6-linked sialic acids, induce rapid internalization of CD22 from the cell surface of human B cells, and facilitate trans binding between CD22 to human autologous cells. This in turn increased the activity of the downstream immunomodulatory molecule Src homology region 2 domain-containing phosphatase 1 (SHP-1) and decreased BCR-induced NF-κB activation in human B cells and B cell proliferation. This mechanism of action gives rationale to support the significant amelioration of disease and good safety profile in clinical trials, as by enabling the "self" recognition mechanism of CD22 via trans binding to α2,6 sialic acid ligands on autologous cells, SM03 specifically restores immune tolerance of B cells to host tissues without affecting the normal B cell immune response to pathogens.
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Affiliation(s)
- Kin L Wong
- SinoMab BioScience Ltd., Hong Kong Special Administrative Region, China
| | - Zhengdong Li
- SinoMab BioScience Ltd., Hong Kong Special Administrative Region, China
| | - Felix Ma
- SinoMab BioScience Ltd., Hong Kong Special Administrative Region, China
| | - Dong Wang
- SinoMab BioScience Ltd., Hong Kong Special Administrative Region, China
| | - Nan Song
- SinoMab BioScience Ltd., Hong Kong Special Administrative Region, China
| | - Chi H Chong
- SinoMab BioScience Ltd., Hong Kong Special Administrative Region, China
| | - Ka K Luk
- SinoMab BioScience Ltd., Hong Kong Special Administrative Region, China
| | - Shui O Leung
- SinoMab BioScience Ltd., Hong Kong Special Administrative Region, China
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10
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Shah AM, Zamora R, Korff S, Barclay D, Yin J, El-Dehaibi F, Billiar TR, Vodovotz Y. Inferring Tissue-Specific, TLR4-Dependent Type 17 Immune Interactions in Experimental Trauma/Hemorrhagic Shock and Resuscitation Using Computational Modeling. Front Immunol 2022; 13:908618. [PMID: 35663944 PMCID: PMC9160183 DOI: 10.3389/fimmu.2022.908618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
Trauma/hemorrhagic shock followed by resuscitation (T/HS-R) results in multi-system inflammation and organ dysfunction, in part driven by binding of damage-associated molecular pattern molecules to Toll-like Receptor 4 (TLR4). We carried out experimental T/HS-R (pseudo-fracture plus 2 h of shock followed by 0-22 h of resuscitation) in C57BL/6 (wild type [WT]) and TLR4-null (TLR4-/-) mice, and then defined the dynamics of 20 protein-level inflammatory mediators in the heart, gut, lung, liver, spleen, kidney, and systemic circulation. Cross-correlation and Principal Component Analysis (PCA) on data from the 7 tissues sampled suggested that TLR4-/- samples express multiple inflammatory mediators in a small subset of tissue compartments as compared to the WT samples, in which many inflammatory mediators were localized non-specifically to nearly all compartments. We and others have previously defined a central role for type 17 immune cells in human trauma. Accordingly, correlations between IL-17A and GM-CSF (indicative of pathogenic Th17 cells); between IL-17A and IL-10 (indicative of non-pathogenic Th17 cells); and IL-17A and TNF (indicative of memory/effector T cells) were assessed across all tissues studied. In both WT and TLR4-/- mice, positive correlations were observed between IL-17A and GM-CSF, IL-10, and TNF in the kidney and gut. In contrast, the variable and dynamic presence of both pathogenic and non-pathogenic Th17 cells was inferred in the systemic circulation of TLR4-/- mice over time, suggesting a role for TLR4 in efflux of these cells into peripheral tissues. Hypergraph analysis - used to define dynamic, cross compartment networks - in concert with PCA-suggested that IL-17A was present persistently in all tissues at all sampled time points except for its absence in the plasma at 0.5h in the WT group, supporting the hypothesis that T/HS-R induces efflux of Th17 cells from the circulation and into specific tissues. These analyses suggest a complex, context-specific role for TLR4 and type 17 immunity following T/HS-R.
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Affiliation(s)
- Ashti M Shah
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ruben Zamora
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Center for Inflammation and Regeneration Modeling, McGowan Institute for Regenerative Medicine, Pittsburgh, PA, United States
| | - Sebastian Korff
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Derek Barclay
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jinling Yin
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Fayten El-Dehaibi
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Yoram Vodovotz
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Center for Inflammation and Regeneration Modeling, McGowan Institute for Regenerative Medicine, Pittsburgh, PA, United States.,Center for Systems Immunology, University of Pittsburgh, Pittsburgh, PA, United States
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11
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Qin W, Rong X, Yu C, Jia P, Yang J, Zhou G. Knockout of SLAMF8 attenuates collagen-induced rheumatoid arthritis in mice through inhibiting TLR4/NF-κB signaling pathway. Int Immunopharmacol 2022; 107:108644. [DOI: 10.1016/j.intimp.2022.108644] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 12/16/2022]
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12
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Smesam HN, Qazmooz HA, Khayoon SQ, Almulla AF, Al-Hakeim HK, Maes M. Pathway Phenotypes Underpinning Depression, Anxiety, and Chronic Fatigue Symptoms Due to Acute Rheumatoid Arthritis: A Precision Nomothetic Psychiatry Analysis. J Pers Med 2022; 12:476. [PMID: 35330475 PMCID: PMC8950237 DOI: 10.3390/jpm12030476] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/19/2022] [Accepted: 03/08/2022] [Indexed: 12/12/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory and autoimmune disorder which affects the joints in the wrists, fingers, and knees. RA is often associated with depressive and anxiety symptoms as well as chronic fatigue syndrome (CFS)-like symptoms. This paper examines the association between depressive symptoms (measured with the Beck Depression Inventory, BDI), anxiety (Hamilton Anxiety Rating Scale, HAMA), CFS-like (Fibro-fatigue Scale) symptoms and immune-inflammatory, autoimmune, and endogenous opioid system (EOS) markers, and lactosylcer-amide (CD17) in RA. The serum biomarkers were assayed in 118 RA and 50 healthy controls. Results were analyzed using the new precision nomothetic psychiatry approach. We found significant correlations between the BDI, FF, and HAMA scores and severity of RA, as assessed with the DAS28-4, clinical and disease activity indices, the number of tender and swollen joints, and patient and evaluator global assessment scores. Partial least squares analysis showed that 69.7% of the variance in this common core underpinning psychopathology and RA symptoms was explained by immune-inflammatory pathways, rheumatoid factor, anti-citrullinated protein antibodies, CD17, and mu-opioid receptor levels. We constructed a new endophenotype class comprising patients with very high immune-inflammatory markers, CD17, RA, affective and CF-like symptoms, and tobacco use disorder. We extracted a reliable and replicable latent vector (pathway phenotype) from immune data, psychopathology, and RA-severity scales. Depression, anxiety, and CFS-like symptoms due to RA are manifestations of the phenome of RA and are mediated by the effects of the same immune-inflammatory, autoimmune, and other pathways that underpin the pathophysiology of RA.
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Affiliation(s)
- Hasan Najah Smesam
- Department of Chemistry, College of Science, University of Kufa, Kufa 540011, Iraq; (H.N.S.); (H.K.A.-H.)
| | - Hasan Abbas Qazmooz
- Department of Ecology, College of Science, University of Kufa, Kufa 540011, Iraq;
| | - Sinan Qayes Khayoon
- Department of Biology, College of Science, University of Kufa, Kufa 540011, Iraq;
| | - Abbas F. Almulla
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf 54001, Iraq;
| | - Hussein Kadhem Al-Hakeim
- Department of Chemistry, College of Science, University of Kufa, Kufa 540011, Iraq; (H.N.S.); (H.K.A.-H.)
| | - Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Psychiatry, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, P.O. Box 281, Geelong, VIC 3220, Australia
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13
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Cao Y, Liu J, Huang C, Tao Y, Wang Y, Chen X, Huang D. Wilforlide A ameliorates the progression of rheumatoid arthritis by inhibiting M1 macrophage polarization. J Pharmacol Sci 2022; 148:116-124. [PMID: 34924115 DOI: 10.1016/j.jphs.2021.10.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 09/27/2021] [Accepted: 10/11/2021] [Indexed: 12/13/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease with increased M1 macrophages. The classical activated M1 macrophages produce various cytokines to control inflammation. Wilforlide A is a natural product that displays anti-inflammatory activities. However, the effect of Wilforlide A on RA progression and the potential mechanisms are unclear. Herein, the collagen-induced arthritis (CIA) mouse was used as an experimental model of RA. The administration of Wilforlide A reduced clinical scores, joint swelling and histological damage in ankle joints of RA mice. The secreted pro-inflammatory factors (MCP1, GM-CSF and M-CSF) and M1 biomarker iNOS in synovium were inhibited by Wilforlide A. In vitro, macrophages deriving from THP-1 cells were stimulated with LPS/IFN-γ to mimic M1 polarization. Similarly, Wilforlide A blocked macrophages polarizing towards M1 subsets. The in vitro results demonstrated that Wilforlide A suppressed LPS/IFN-γ-induced TLR4 upregulation, IκBα degradation and NF-κB p65 activation. In addition, TAK242 (a TLR4 inhibitor) treatment caused a similar inhibitory effect on M1 polarization with Wilforlide A, whereas it was less than the combination of TAK242 and Wilforlide A. Therefore, this work supports that Wilforlide A ameliorates M1 macrophage polarization in RA, which is partially mediated by TLR4/NF-κB signaling pathway inactivation.
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Affiliation(s)
- Yunxiang Cao
- Department of Rheumatology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine (TCM), Hefei, Anhui, 230031, China
| | - Jian Liu
- Department of Rheumatology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine (TCM), Hefei, Anhui, 230031, China.
| | - Chuanbing Huang
- Department of Rheumatology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine (TCM), Hefei, Anhui, 230031, China
| | - Yanhong Tao
- Department of Rheumatology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine (TCM), Hefei, Anhui, 230031, China
| | - Yuan Wang
- Department of Rheumatology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine (TCM), Hefei, Anhui, 230031, China
| | - Xi Chen
- Department of Rheumatology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine (TCM), Hefei, Anhui, 230031, China
| | - Dan Huang
- Department of Rheumatology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine (TCM), Hefei, Anhui, 230031, China
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14
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Farooq M, Batool M, Kim MS, Choi S. Toll-Like Receptors as a Therapeutic Target in the Era of Immunotherapies. Front Cell Dev Biol 2021; 9:756315. [PMID: 34671606 PMCID: PMC8522911 DOI: 10.3389/fcell.2021.756315] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/13/2021] [Indexed: 12/29/2022] Open
Abstract
Toll-like receptors (TLRs) are the pattern recognition receptors, which are activated by foreign and host molecules in order to initiate the immune response. They play a crucial role in the regulation of innate immunity, and several studies have shown their importance in bacterial, viral, and fungal infections, autoimmune diseases, and cancers. The consensus view from an immunological perspective is that TLR agonists can serve either as a possible therapeutic agent or as a vaccine adjuvant toward cancers or infectious diseases and that TLR inhibitors may be a promising approach to the treatment of autoimmune diseases, some cancers, bacterial, and viral infections. These notions are based on the fact that TLR agonists stimulate the secretion of proinflammatory cytokines and in general, the development of proinflammatory responses. Some of the TLR-based inhibitory agents have shown to be efficacious in preclinical models and have now entered clinical trials. Therefore, TLRs seem to hold the potential to serve as a perfect target in the era of immunotherapies. We offer a perspective on TLR-based therapeutics that sheds light on their usefulness and on combination therapies. We also highlight various therapeutics that are in the discovery phase or in clinical trials.
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Affiliation(s)
- Mariya Farooq
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
| | - Maria Batool
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
- S&K Therapeutics, Suwon, South Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
| | - Sangdun Choi
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
- S&K Therapeutics, Suwon, South Korea
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15
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Amaral-Silva D, Gonçalves R, Torrão RC, Torres R, Falcão S, Gonçalves MJ, Araújo MP, Martins MJ, Lopes C, Neto A, Marona J, Costa T, Castelão W, Silva AB, Silva I, Lourenço MH, Mateus M, Gonçalves NP, Manica S, Costa M, Pimentel-Santos FM, Mourão AF, Branco JC, Soares H. Direct tissue-sensing reprograms TLR4 + Tfh-like cells inflammatory profile in the joints of rheumatoid arthritis patients. Commun Biol 2021; 4:1135. [PMID: 34580414 PMCID: PMC8476501 DOI: 10.1038/s42003-021-02659-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 09/09/2021] [Indexed: 12/20/2022] Open
Abstract
CD4+ T cells mediate rheumatoid arthritis (RA) pathogenesis through both antibody-dependent and independent mechanisms. It remains unclear how synovial microenvironment impinges on CD4+ T cells pathogenic functions. Here, we identified a TLR4+ follicular helper T (Tfh) cell-like population present in the blood and expanded in synovial fluid. TLR4+ T cells possess a two-pronged pathogenic activity whereby direct TLR4+ engagement by endogenous ligands in the arthritic joint reprograms them from an IL-21 response, known to sponsor antibody production towards an IL-17 inflammatory program recognized to fuel tissue damage. Ex vivo, synovial fluid TLR4+ T cells produced IL-17, but not IL-21. Blocking TLR4 signaling with a specific inhibitor impaired IL-17 production in response to synovial fluid recognition. Mechanistically, we unveiled that T-cell HLA-DR regulates their TLR4 expression. TLR4+ T cells appear to uniquely reconcile an ability to promote systemic antibody production with a local synovial driven tissue damage program. In order to identify how the synovial microenvironment impinges on CD4+ T cells pathogenic functions in Rheumatoid Arthritis (RA), Amaral-Silva examined RA patient blood and synovial fluif and identified the presence of a TLR4+ follicular helper T (Tfh) cell-like population. They provided mechanistic insight into how TLR4+ T cells uniquely reconcile an ability to promote systemic antibody production with a local synovial driven-tissue damage program.
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Affiliation(s)
- Daniela Amaral-Silva
- Human Immunobiology and Pathogenesis Group, Lisboa, Portugal
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
| | - Rute Gonçalves
- Human Immunobiology and Pathogenesis Group, Lisboa, Portugal
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
| | - Rita C. Torrão
- Human Immunobiology and Pathogenesis Group, Lisboa, Portugal
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
| | - Rita Torres
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
- Rheumatological Diseases Laboratory, Lisboa, Portugal
| | - Sandra Falcão
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
- Rheumatological Diseases Laboratory, Lisboa, Portugal
| | - Maria João Gonçalves
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Maria Paula Araújo
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Maria José Martins
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Carina Lopes
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Agna Neto
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
- Rheumatological Diseases Laboratory, Lisboa, Portugal
| | - José Marona
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Tiago Costa
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Walter Castelão
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Ana Bento Silva
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Inês Silva
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Maria Helena Lourenço
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Margarida Mateus
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Nuno Pina Gonçalves
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
- Rheumatological Diseases Laboratory, Lisboa, Portugal
| | - Santiago Manica
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
- Rheumatological Diseases Laboratory, Lisboa, Portugal
| | - Manuela Costa
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
| | - Fernando M. Pimentel-Santos
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
- Rheumatological Diseases Laboratory, Lisboa, Portugal
| | - Ana Filipa Mourão
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
- Rheumatological Diseases Laboratory, Lisboa, Portugal
| | - Jaime C. Branco
- grid.414462.10000 0001 1009 677XHospital Egas Moniz, Rua da Junqueira n° 126, Lisboa, Portugal
- Rheumatological Diseases Laboratory, Lisboa, Portugal
- grid.10772.330000000121511713CHRC|CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
| | - Helena Soares
- Human Immunobiology and Pathogenesis Group, Lisboa, Portugal
- grid.10772.330000000121511713iNOVA4Health | CEDOC, NOVA Medical School | Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisboa, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Lisbon Campus, Rua do Instituto Bacteriológico 5, Lisboa, Portugal
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16
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Unterberger S, Davies KA, Rambhatla SB, Sacre S. Contribution of Toll-Like Receptors and the NLRP3 Inflammasome in Rheumatoid Arthritis Pathophysiology. Immunotargets Ther 2021; 10:285-298. [PMID: 34350135 PMCID: PMC8326786 DOI: 10.2147/itt.s288547] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/15/2021] [Indexed: 12/20/2022] Open
Abstract
Rheumatoid arthritis (RA) is a progressive autoimmune disease that is characterized by inflammation of the synovial joints leading to cartilage and bone damage. The pathogenesis is sustained by the production of pro-inflammatory cytokines including tumor necrosis factor (TNF), interleukin (IL)-1 and IL-6, which can be targeted therapeutically to alleviate disease severity. Several innate immune receptors are suggested to contribute to the chronic inflammation in RA, through the production of pro-inflammatory factors in response to endogenous danger signals. Much research has focused on toll-like receptors and more recently the nucleotide-binding domain and leucine-rich repeat pyrin containing protein-3 (NLRP3) inflammasome, which is required for the processing and release of IL-1β. This review summarizes the current understanding of the potential involvement of these receptors in the initiation and maintenance of inflammation and tissue damage in RA and experimental arthritis models.
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Affiliation(s)
- Sarah Unterberger
- Brighton and Sussex Medical School, University of Sussex, Falmer, Brighton, BN1 9PS, UK
| | - Kevin A Davies
- Brighton and Sussex Medical School, University of Sussex, Falmer, Brighton, BN1 9PS, UK
| | | | - Sandra Sacre
- Brighton and Sussex Medical School, University of Sussex, Falmer, Brighton, BN1 9PS, UK
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17
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Kiripolsky J, Kasperek EM, Zhu C, Li QZ, Wang J, Yu G, Kramer JM. Immune-Intrinsic Myd88 Directs the Production of Antibodies With Specificity for Extracellular Matrix Components in Primary Sjögren's Syndrome. Front Immunol 2021; 12:692216. [PMID: 34381449 PMCID: PMC8350326 DOI: 10.3389/fimmu.2021.692216] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 07/12/2021] [Indexed: 02/05/2023] Open
Abstract
Primary Sjögren's syndrome is an autoimmune disease that is predominantly seen in women. The disease is characterized by exocrine gland dysfunction in combination with serious systemic manifestations. At present, the causes of pSS are poorly understood. Pulmonary and renal inflammation are observed in pSS mice, reminiscent of a subset of pSS patients. A growing body of evidence indicates that inflammation mediated by Damage-Associated Molecular Patterns (DAMPs) contributes to autoimmunity, although this is not well-studied in pSS. Degraded extracellular matrix (ECM) constituents can serve as DAMPs by binding pattern-recognition receptors and activating Myd88-dependent signaling cascades, thereby exacerbating and perpetuating inflammatory cascades. The ECM components biglycan (Bgn) and decorin (Dcn) mediate sterile inflammation and both are implicated in autoimmunity. The objective of this study was to determine whether these ECM components and anti-ECM antibodies are altered in a pSS mouse model, and whether this is dependent on Myd88 activation in immune cells. Circulating levels of Bgn and Dcn were similar among pSS mice and controls and tissue expression studies revealed pSS mice had robust expression of both Bgn and Dcn in the salivary tissue, saliva, lung and kidney. Sera from pSS mice displayed increased levels of autoantibodies directed against ECM components when compared to healthy controls. Further studies using sera derived from conditional knockout pSS mice demonstrated that generation of these autoantibodies relies, at least in part, on Myd88 expression in the hematopoietic compartment. Thus, this study demonstrates that ECM degradation may represent a novel source of chronic B cell activation in the context of pSS.
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Affiliation(s)
- Jeremy Kiripolsky
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Eileen M. Kasperek
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Chengsong Zhu
- Department of Immunology, Microarray & Immune Phenotyping Core Facility, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Quan-Zhen Li
- Department of Immunology, Microarray & Immune Phenotyping Core Facility, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Jia Wang
- Department of Biostatistics, School of Public Health and Health Professions, The University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Guan Yu
- Department of Biostatistics, School of Public Health and Health Professions, The University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Jill M. Kramer
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY, United States
- Department of Oral Diagnostics Sciences, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY, United States
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Mormile I, Rossi FW, Prevete N, Granata F, Pucino V, de Paulis A. The N-Formyl Peptide Receptors and Rheumatoid Arthritis: A Dangerous Liaison or Confusing Relationship? Front Immunol 2021; 12:685214. [PMID: 34220836 PMCID: PMC8253054 DOI: 10.3389/fimmu.2021.685214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/31/2021] [Indexed: 12/17/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by a progressive symmetric inflammation of the joints resulting in bone erosion and cartilage destruction with a progressive loss of function and joint deformity. An increased number of findings support the role of innate immunity in RA: many innate immune mechanisms are responsible for producing several cytokines and chemokines involved in RA pathogenesis, such as Tumor Necrosis Factor (TNF)-α, interleukin (IL)-6, and IL-1. Pattern recognition receptors (PRRs) play a crucial role in modulating the activity of the innate arm of the immune response. We focused our attention over the years on the expression and functions of a specific class of PRR, namely formyl peptide receptors (FPRs), which exert a key function in both sustaining and resolving the inflammatory response, depending on the context and/or the agonist. We performed a broad review of the data available in the literature on the role of FPRs and their ligands in RA. Furthermore, we queried a publicly available database collecting data from 90 RA patients with different clinic features to evaluate the possible association between FPRs and clinic-pathologic parameters of RA patients.
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Affiliation(s)
- Ilaria Mormile
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
| | - Francesca Wanda Rossi
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), World Allergy Organization (WAO) Center of Excellence, University of Naples Federico II, Naples, Italy
| | - Nella Prevete
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy
| | - Francescopaolo Granata
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
| | - Valentina Pucino
- College of Medical and Dental Sciences, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
| | - Amato de Paulis
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), World Allergy Organization (WAO) Center of Excellence, University of Naples Federico II, Naples, Italy
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Manfredi A, Cassone G, Luppi F, Atienza-Mateo B, Cavazza A, Sverzellati N, González-Gay MA, Salvarani C, Sebastiani M. Rheumatoid arthritis related interstitial lung disease. Expert Rev Clin Immunol 2021; 17:485-497. [PMID: 33779447 DOI: 10.1080/1744666x.2021.1905524] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Interstitial lung disease (ILD) represents a frequent extra-articular manifestation of rheumatoid arthritis (RA) deeply impacting both quality of life and overall prognosis. Areas covered: A literature search was performed including PubMed, Embase, Scopus, and Web of Science. Many retrospective studies investigated the possible risk factors for RA-related ILD (RA-ILD), aiming to identify patients at risk. Among them, males, smokers, positivity of anti-citrullinated peptide antibodies have been associated with RA-ILD, such as some genetic haplotypes. Usual interstitial pneumonia is the histologic and radiologic pattern most frequently observed, followed by nonspecific interstitial pneumonia. Since lung involvement can represent the RA onset, an early differential diagnosis with idiopathic interstitial pneumonia can be difficult or sometimes impossible. High-resolution computed tomography represents the gold standard for ILD diagnosis, while multidisciplinary discussion should be required to assess disease staging, severity and progression. Expert opinion: Management of RA-ILD patients is challenging due to the lack of evidence-based data regarding both assessment and treatment. Moreover, the high variability of clinical presentation and evolution makes it difficult to establish the correct therapeutic strategy. Currently, multidisciplinary approach, including at least rheumatologists, pulmonologists, and radiologists, is desirable to define therapy and follow-up strategies.
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Affiliation(s)
- Andreina Manfredi
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico Di , Modena, Italy
| | - Giulia Cassone
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico Di , Modena, Italy.,Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Fabrizio Luppi
- Department of Medicine and Surgery, University of Milan Bicocca, Milan, Italy.,Department of Medicine and Surgery, Respiratory Unit, San Gerardo Hospital, ASST Monza, Monza, Italy
| | - Belen Atienza-Mateo
- Department of Rheumatology, Hospital Universitario Marques De Valdecilla, IDIVAL, University of Cantabria Santander, Santander, Spain
| | - Alberto Cavazza
- Pathology Unit, IRCCS Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS Di Reggio Emilia, Reggio Emilia, Italy
| | - Nicola Sverzellati
- Section of Radiology, Unit of Surgical Sciences, Department of Medicine and Surgery (Dimec), University of Parma, Parma, Italy
| | - Miguel A González-Gay
- Department of Rheumatology, Hospital Universitario Marques De Valdecilla, IDIVAL, University of Cantabria Santander, Santander, Spain
| | - Carlo Salvarani
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico Di , Modena, Italy.,Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy.,Rheumatology Unit, IRCCS Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS Di Reggio Emilia, Reggio Emilia, Italy
| | - Marco Sebastiani
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico Di , Modena, Italy
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Okamato Y, Ghosh T, Okamoto T, Schuyler RP, Seifert J, Charry LL, Visser A, Feser M, Fleischer C, Pedrick C, August J, Moss L, Bemis EA, Norris JM, Kuhn KA, Demoruelle MK, Deane KD, Ghosh D, Holers VM, Hsieh EWY. Subjects at-risk for future development of rheumatoid arthritis demonstrate a PAD4-and TLR-dependent enhanced histone H3 citrullination and proinflammatory cytokine production in CD14 hi monocytes. J Autoimmun 2021; 117:102581. [PMID: 33310262 PMCID: PMC7855988 DOI: 10.1016/j.jaut.2020.102581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 12/13/2022]
Abstract
The presence of anti-citrullinated protein/peptide antibodies (ACPA) and epitope spreading across the target autoantigens is a unique feature of rheumatoid arthritis (RA). ACPA are present in the peripheral blood for several years prior to the onset of arthritis and clinical classification of RA. ACPA recognize multiple citrullinated proteins, including histone H3 (H3). Intracellular citrullination of H3 in neutrophils and T cells is known to regulate immune cell function by promoting neutrophil extracellular trap formation and citrullinated autoantigen release as well as regulating the Th2/Th17 T cell phenotypic balance. However, the roles of H3 citrullination in other immune cells are not fully elucidated. We aimed to explore H3 citrullination and cytokine/metabolomic signatures in peripheral blood immune cells from subjects prior to and after the onset of RA, at baseline and in response to ex vivo toll-like receptor (TLR) stimulation. Here, we analyzed 13 ACPA (+) subjects without arthritis but at-risk for future development of RA, 14 early RA patients, and 13 healthy controls. We found significantly elevated H3 citrullination in CD14hi monocytes, as well as CD1c+ dendritic cells and CD66+ granulocytes. Unsupervised analysis identified two distinct subsets in CD14hi monocytes characterized by H3 modification and unique cytokine/metabolomic signatures. CD14hi monocytes with elevated TLR-stimulated H3 citrullination were significantly increased in ACPA (+) at-risk subjects. These cells were skewed to produce TNFα, MIP1β, IFNα, and partially IL-12. Additionally, they demonstrate peptidyl arginine deiminase 4 (PAD4) mediated upregulation of the glycolytic enzyme PFKFB3. These CD14hi monocytes with elevated H3 citrullination morphologically formed monocyte extracellular traps (METs). Taken together, dysregulated PAD4-driven cytokine production as well as MET formation in CD14hi monocytes in ACPA (+) at-risk subjects likely plays an important role in the development of RA via promoting and perpetuating inflammation and generation of citrullinated autoantigens.
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Affiliation(s)
- Yuko Okamato
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA; Tokyo Women's Medical University School of Medicine, Department of Rheumatology, Tokyo, Japan.
| | - Tusharkanti Ghosh
- Colorado School of Public Health, Department of Biostatistics and Informatics, Aurora, CO, USA
| | - Tsukasa Okamoto
- University of Colorado Denver, Department of Medicine, Aurora, CO, USA
| | - Ronald P Schuyler
- University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA
| | - Jennifer Seifert
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Laura Lenis Charry
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Ashley Visser
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Marie Feser
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Chelsie Fleischer
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Chong Pedrick
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Justin August
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Laurakay Moss
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Elizabeth A Bemis
- Colorado School of Public Health, Department of Epidemiology, Aurora, CO, USA
| | - Jill M Norris
- Colorado School of Public Health, Department of Epidemiology, Aurora, CO, USA
| | - Kristine A Kuhn
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | | | - Kevin D Deane
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Debashis Ghosh
- Colorado School of Public Health, Department of Biostatistics and Informatics, Aurora, CO, USA
| | - V Michael Holers
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Elena W Y Hsieh
- University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA; University of Colorado School of Medicine, Children's Hospital Colorado, Department of Pediatrics, Section of Allergy & Immunology, Aurora, CO, USA
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21
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TLR expression profiles are a function of disease status in rheumatoid arthritis and experimental arthritis. J Autoimmun 2021; 118:102597. [PMID: 33493980 DOI: 10.1016/j.jaut.2021.102597] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/21/2020] [Accepted: 01/07/2021] [Indexed: 11/23/2022]
Abstract
The role of the innate immune system has been established in the initiation and perpetuation of inflammatory disease, but less attention has been paid to its role in the resolution of inflammation and return to homeostasis. Toll-like receptor (TLR) expression profiles were analysed in tissues with differing disease status in rheumatoid arthritis (RA), ankylosing spondylitis (AS), and in experimental arthritis. TLR gene expression was measured in whole blood and monocytes, before and after TNF blockade. In RA and osteoarthritis synovia, the expression of TLRs was quantified by standard curve qPCR. In addition, four distinct stages of disease were defined and validated in collagen-induced arthritis (CIA), the gold standard animal model for RA - pre-onset, early disease, late disease and immunised mice that were resistant to the development of disease. TLR expression was measured in spleens, lymph nodes, blood cells, liver and the paws (inflamed and unaffected). In RA whole blood, the expression of TLR1, 4 and 6 was significantly reduced by TNF blockade but the differences in TLR expression profiles between responders and non-responders were less pronounced than the differences between RA and AS patients. In RA non-responders, monocytes had greater TLR2 expression prior to therapy compared to responders. The expression of TLR1, 2, 4 and 8 was higher in RA synovium compared to control OA synovium. Circulating cytokine levels in CIA resistant mice were similar to naïve mice, but anti-collagen antibodies were similar to arthritic mice. Distinct profiles of inflammatory gene expression were mapped in paws and organs with differing disease status. TLR expression in arthritic paws tended to be similar in early and late disease, with TLR1 and 2 moderately higher in late disease. TLR expression in unaffected paws varied according to gene and disease status but was generally lower in resistant paws. Disease status-specific profiles of TLR expression were observed in spleens, lymph nodes, blood cells and the liver. Notably, TLR2 expression rose then fell in the transition from naïve to pre-onset to early arthritis. TLR gene expression profiles are strongly associated with disease status. In particular, increased expression in the blood precedes clinical manifestation.
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22
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Yang Z, Liu W, Wan X, Liu R, Zhang Y. Association of Toll-like Receptor 4 Rs7873784 G/C Polymorphism with Rheumatoid Arthritis Risk in a Chinese Population. Immunol Invest 2020; 51:660-669. [PMID: 33356682 DOI: 10.1080/08820139.2020.1864397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Background: The purposes of this study were to explore whether the Toll-like receptor 4 (TLR4) gene rs7873784 G/C polymorphism was related to the risk of rheumatoid arthritis (RA) and to the clinical features of the disease in Chinese subjects.Materials and Methods: We examined the TLR4 rs7873784 G/C polymorphism in 805 Chinese RA patients and 1095 healthy controls. Genotype was determined with a custom-by-design 48-Plex single nucleotide polymorphism scan™ Kit. Blood plasma levels of TLR4 in 170 RA patients and 170 matched controls were measured by ELISA.Results: The TLR4 gene rs7873784 G/C polymorphism was related to a reduced risk for RA. By stratified analysis, we found a dramatically reduced risk for RA in patients who were female, CRP-positive, RF-positive, DAS28 ≥ 3.20, or ESR ≥ 25. Compared with the controls, the average level of TLR4 protein in plasma of RA patients was increased. In addition, RA patients exhibited higher levels of TLR4 mRNA than controls (P < .05).Conclusion: These results demonstrate the TLR4 rs7873784 G/C polymorphism to relate to a decreased risk for RA in a Chinese population.
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Affiliation(s)
- Zhicheng Yang
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou China
| | - Weixi Liu
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou China
| | - Xiaoxian Wan
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou China
| | - Ruiping Liu
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou China
| | - Yunkun Zhang
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou China
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23
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Polymyxin B prevents the development of adjuvant arthritis via modulation of TLR/Cox-2 signaling pathway. Life Sci 2020; 259:118250. [PMID: 32791152 DOI: 10.1016/j.lfs.2020.118250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 11/20/2022]
Abstract
AIMS Several microbial toll-like receptor (TLR) ligands, bacterial DNA and bacterial cell wall fragments have been identified in the synovium of rheumatoid arthritis (RA) patients, proving bacterial involvement in the pathogenesis of RA. The current study aimed to verify that low dose polymyxin B could prevent the development of chronic inflammatory arthritis. METHODS Twelve days post adjuvant injection, Sprague-Dawley rats were treated twice weekly with methotrexate (0.5 mg/kg) or daily with polymyxin B (1 mg/kg) or with combination of both for 1 or 2 weeks. Arthritis progression was assessed by hind paw swelling, serum levels of tumor growth factor-1β (TGF-1β), tumor necrosis factor-alpha (TNF-α), high sensitivity C-reactive protein (HS-CRP) and nuclear factor kappa B (NF-κB) were measured using ELISA. Cyclooxygenase-1 (Cox-1) and Cox-2 activities, as well as mRNA expression of TLR-2 and TLR-4 were determined. Histopathological examination of the ankle joint was performed as well as immunohistochemistry for anti-TLR-4. Histopathological assessment of toxic effects on the kidney was performed. KEY FINDINGS Adjuvant arthritis led to a significant swelling of the hind paw and alteration in all serum parameters, TLR-2 and TLR-4 expression, as well as Cox-2 activity. These alterations were associated with histopathological changes of the joints. Polymyxin B reduced significantly all biomarkers of inflammation, showing better effect of the combination in most of the studied parameters, with minimal signs of nephrotoxicity. SIGNIFICANCE In conclusion, results showed that polymyxin B possesses significant anti-arthritic activity which may be attributed to inhibition of the TLR-4, NF-κB and Cox-2 signaling pathway.
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Manfredi A, Luppi F, Cassone G, Vacchi C, Salvarani C, Sebastiani M. Pathogenesis and treatment of idiopathic and rheumatoid arthritis-related interstitial pneumonia. The possible lesson from COVID-19 pneumonia. Expert Rev Clin Immunol 2020; 16:751-770. [PMID: 32722946 PMCID: PMC7594185 DOI: 10.1080/1744666x.2020.1803064] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 07/27/2020] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Main clinical manifestations of SARS-CoV-2 infection are characterized by fever, dyspnea, and interstitial pneumonia, frequently evolving in acute respiratory distress syndrome (ARDS). AREAS COVERED Features of coronavirus disease 2019 (COVID-19) presents some common points with interstitial lung disease (ILD) both idiopathic and related to rheumatoid arthritis (RA), typically characterized by a chronic progression over time and possibly complicated by acute exacerbation (AE). The study of common pathogenetic mechanisms, such as the involvement of toll-like receptor 4, could contribute to the knowledge and treatment of idiopathic and RA-ILD. Moreover, hyperinflammation, mainly characterized by increase of effector T-cells and inflammatory cytokines, and activation of coagulation cascade, observed in COVID-19 related ARDS have been already shown in patients with AE of idiopathic and RA-ILD. A literature search was performed in PubMed, Embase, Scopus, and Web of Science, together with a manual search in COVID-resource centers of the main journals. EXPERT OPINION Despite the uncertainty about pathogenetic aspects about COVID-19- pneumonia, it could be a possible model for other forms of ILD and AE. The great amount of data from studies on COVID-19 could be helpful in proposing safe therapeutic approaches for RA-ILD, in understanding pathogenesis of usual interstitial pneumonia and to develop new therapeutic strategies for AE.
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Affiliation(s)
- A Manfredi
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico Di Modena, Modena, Italy
| | - F Luppi
- Department of Medicine and Surgery, University of Milan Bicocca, Respiratory Unit, San Gerardo Hospital, ASST Monza, Monza, Italy
| | - G Cassone
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
- Rheumatology Unit, Santa Maria Hospital, IRCCS, Reggio Emilia, Italy
| | - C Vacchi
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico Di Modena, Modena, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - C Salvarani
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico Di Modena, Modena, Italy
- Rheumatology Unit, Santa Maria Hospital, IRCCS, Reggio Emilia, Italy
| | - M Sebastiani
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico Di Modena, Modena, Italy
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Ichise Y, Saegusa J, Tanaka-Natsui S, Naka I, Hayashi S, Kuroda R, Morinobu A. Soluble CD14 Induces Pro-inflammatory Cytokines in Rheumatoid Arthritis Fibroblast-Like Synovial Cells via Toll-Like Receptor 4. Cells 2020; 9:E1689. [PMID: 32674360 PMCID: PMC7408546 DOI: 10.3390/cells9071689] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/10/2020] [Accepted: 07/10/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Synovial fluids of rheumatoid arthritis (RA) patients commonly contain high concentrations of soluble CD14 (sCD14). To investigate its potential role in RA pathogenesis, we tested whether sCD14 binding transmits a signal to fibroblast-like synoviocytes from RA patients (RA-FLS). METHODS The induction of pro-inflammatory cytokines, chemokines, and mediators by sCD14 stimulation of RA-FLS was quantified by real-time PCR and ELISA. Cell proliferation was assessed by the BrdU assay. LPS-RS, a Toll-like receptor 4 (TLR-4) antagonist, was used to block TLR-4 signaling. RESULTS Soluble CD14 induced the expression of IL-6 mRNA and secretion of the protein. The expression of other pro-inflammatory cytokines and mediators, such as TNF-α, IL-8, intercellular adhesion molecule-1 (ICAM-1), MMP-3, and RANK ligand (RANKL), was also induced by sCD14. In addition, sCD14 stimulation promoted RA-FLS proliferation. LPS-RS abolished IL-6, IL-8, and ICAM-1 mRNA induction by sCD14 in RA-FLS. On the other hand, TNF-α and IL-17A increased TLR-4 expression by RA-FLS and amplified their sCD14-induced IL-6 expression. CONCLUSIONS Soluble CD14 transmits inflammatory signals to RA-FLS via TLR-4. The effects of sCD14 may be augmented in inflammatory milieu. Our results suggest that sCD14 is involved in the pathogenesis of RA and may be a novel therapeutic target.
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Affiliation(s)
- Yoshihide Ichise
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (Y.I.); (S.T.-N.); (I.N.); (A.M.)
| | - Jun Saegusa
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (Y.I.); (S.T.-N.); (I.N.); (A.M.)
- Department of Clinical Laboratory, Kobe University Hospital, Kobe 650-0017, Japan
| | - Shino Tanaka-Natsui
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (Y.I.); (S.T.-N.); (I.N.); (A.M.)
| | - Ikuko Naka
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (Y.I.); (S.T.-N.); (I.N.); (A.M.)
| | - Shinya Hayashi
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (S.H.); (R.K.)
| | - Ryosuke Kuroda
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (S.H.); (R.K.)
| | - Akio Morinobu
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (Y.I.); (S.T.-N.); (I.N.); (A.M.)
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Sinkeviciute D, Aspberg A, He Y, Bay-Jensen AC, Önnerfjord P. Characterization of the interleukin-17 effect on articular cartilage in a translational model: an explorative study. BMC Rheumatol 2020; 4:30. [PMID: 32426694 PMCID: PMC7216541 DOI: 10.1186/s41927-020-00122-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 03/06/2020] [Indexed: 12/29/2022] Open
Abstract
Background Osteoarthritis (OA) is a progressive, chronic disease characterized by articular cartilage destruction. The pro-inflammatory cytokine IL-17 levels have been reported elevated in serum and synovial fluid of OA patients and correlated with increased cartilage defects and bone remodeling. The aim of this study was to characterize an IL-17-mediated articular cartilage degradation ex-vivo model and to investigate IL-17 effect on cartilage extracellular matrix protein turnover. Methods Full-depth bovine femoral condyle articular cartilage explants were cultured in serum-free medium for three weeks in the absence, or presence of cytokines: IL-17A (100 ng/ml or 25 ng/ml), or 10 ng OSM combined with 20 ng/ml TNFα (O + T). RNA isolation and PCR analysis were performed on tissue lysates to confirm IL-17 receptor expression. GAG and ECM-turnover biomarker release into conditioned media was assessed with dimethyl methylene blue and ELISA assays, respectively. Gelatin zymography was used for matrix metalloproteinase (MMP) 2 and MMP9 activity assessment in conditioned media, and shotgun LC-MS/MS for identification and label-free quantification of proteins and protein fragments in conditioned media. Western blotting was used to validate MS results. Results IL-17RA mRNA was expressed in bovine full-depth articular cartilage and the treatment with IL-17A did not interfere with metabolic activity of the model. IL-17A induced cartilage breakdown; conditioned media GAG levels were 3.6-fold-elevated compared to untreated. IL-17A [100 ng/ml] induced ADAMTS-mediated aggrecan degradation fragment release (14-fold increase compared to untreated) and MMP-mediated type II collagen fragment release (6-fold-change compared to untreated). MS data analysis revealed 16 differentially expressed proteins in IL-17A conditioned media compared to untreated, and CHI3L1 upregulation in conditioned media in response to IL-17 was confirmed by Western blotting. Conclusions We showed that IL-17A has cartilage modulating potential. It induces collagen and aggrecan degradation indicating an upregulation of MMPs. This was confirmed by zymography and mass spectrometry data. We also showed that the expression of other cytokines is induced by IL-17A, which provide further insight to the pathways that are active in response to IL-17A. This exploratory study confirms that IL-17A may play a role in cartilage pathology and that the applied model may be a good tool to further investigate it.
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Affiliation(s)
- Dovile Sinkeviciute
- 1Nordic Bioscience, Biomarkers & Research, Herlev, Denmark.,2Rheumatology and Molecular Skeletal Biology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Anders Aspberg
- 2Rheumatology and Molecular Skeletal Biology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Yi He
- 1Nordic Bioscience, Biomarkers & Research, Herlev, Denmark
| | | | - Patrik Önnerfjord
- 2Rheumatology and Molecular Skeletal Biology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
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Update on the Pathomechanism, Diagnosis, and Treatment Options for Rheumatoid Arthritis. Cells 2020; 9:cells9040880. [PMID: 32260219 PMCID: PMC7226834 DOI: 10.3390/cells9040880] [Citation(s) in RCA: 386] [Impact Index Per Article: 96.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 12/18/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease that involves multiple joints bilaterally. It is characterized by an inflammation of the tendon (tenosynovitis) resulting in both cartilage destruction and bone erosion. While until the 1990s RA frequently resulted in disability, inability to work, and increased mortality, newer treatment options have made RA a manageable disease. Here, great progress has been made in the development of disease-modifying anti-rheumatic drugs (DMARDs) which target inflammation and thereby prevent further joint damage. The available DMARDs are subdivided into (1) conventional synthetic DMARDs (methotrexate, hydrochloroquine, and sulfadiazine), (2) targeted synthetic DMARDs (pan-JAK- and JAK1/2-inhibitors), and (3) biologic DMARDs (tumor necrosis factor (TNF)-α inhibitors, TNF-receptor (R) inhibitors, IL-6 inhibitors, IL-6R inhibitors, B cell depleting antibodies, and inhibitors of co-stimulatory molecules). While DMARDs have repeatedly demonstrated the potential to greatly improve disease symptoms and prevent disease progression in RA patients, they are associated with considerable side-effects and high financial costs. This review summarizes our current understanding of the underlying pathomechanism, diagnosis of RA, as well as the mode of action, clinical benefits, and side-effects of the currently available DMARDs.
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Quero L, Tiaden AN, Hanser E, Roux J, Laski A, Hall J, Kyburz D. miR-221-3p Drives the Shift of M2-Macrophages to a Pro-Inflammatory Function by Suppressing JAK3/STAT3 Activation. Front Immunol 2020; 10:3087. [PMID: 32047494 PMCID: PMC6996464 DOI: 10.3389/fimmu.2019.03087] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 12/17/2019] [Indexed: 12/13/2022] Open
Abstract
Objectives: Macrophages are conventionally classified as pro-inflammatory (M1) and anti-inflammatory (M2) functional types. There is evidence for a predominance of macrophages with an inflammatory phenotype (M1) in the rheumatoid arthritis (RA) synovium. MicroRNAs (miRs) play a pivotal role in regulating the inflammatory response in innate immune cells and are found at dysregulated levels in RA patients. Here we explored miRs that tune the inflammatory function of M2-macrophages. Methods: Expression profiles of miR-221-3p and miR-155-5p were analyzed in clinical samples from RA, other inflammatory arthritis (OIA), osteoarthritis (OA), and healthy donors (HD) by qPCR. In vitro generated macrophages were transfected with miR-mimics and inhibitors. Transcriptome profiling through RNA-sequencing was performed on M2-macrophages overexpressing miR-221-3p mimic with or without LPS treatment. Secretion of IL-6, IL-10, IL-12, IL-8, and CXCL13 was measured in M1- and M2-macrophages upon TLR2/TLR3/TLR4-stimulation using ELISA. Inflammatory pathways including NF-κB, IRF3, MAPKs, and JAK3/STAT3 were evaluated by immunoblotting. Direct target interaction of miR-221-3p and predicted target sites in 3'UTR of JAK3 were examined by luciferase reporter gene assay. Results: miR-221-3p in synovial tissue and fluid was increased in RA vs. OA or OIA. Endogenous expression levels of miR-221-3p and miR-155-5p were higher in M1- than M2-macrophages derived from RA patients or HD. TLR4-stimulation of M1- and M2-macrophages resulted in downregulation of miR-221-3p, but upregulation of miR-155-5p. M2-macrophages transfected with miR-221-3p mimics secreted less IL-10 and CXCL13 but more IL-6 and IL-8, exhibited downregulation of JAK3 protein and decreased pSTAT3 activation. JAK3 was identified as new direct target of miR-221-3p in macrophages. Co-transfection of miR-221-3p/miR-155-5p mimics in M2-macrophages increased M1-specific IL-12 secretion. Conclusions: miR-221-3p acts as a regulator of TLR4-induced inflammatory M2-macrophage function by directly targeting JAK3. Dysregulated miR-221-3p expression, as seen in synovium of RA patients, leads to a diminished anti-inflammatory response and drives M2-macrophages to exhibit a M1-cytokine profile.
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Affiliation(s)
- Lilian Quero
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | - André N Tiaden
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Edveena Hanser
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Julien Roux
- Bioinformatics Core Facility, Department of Biomedicine, University of Basel, Basel, Switzerland.,Bioinformatic Core Facility, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Artur Laski
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Jonathan Hall
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Diego Kyburz
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Basel, Switzerland
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29
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Samarpita S, Kim JY, Rasool MK, Kim KS. Investigation of toll-like receptor (TLR) 4 inhibitor TAK-242 as a new potential anti-rheumatoid arthritis drug. Arthritis Res Ther 2020; 22:16. [PMID: 31973752 PMCID: PMC6979396 DOI: 10.1186/s13075-020-2097-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 01/07/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Proper blocking of toll-like receptor (TLR) activation during disease progression has been reported to have inhibitory effect on the pathogenesis of rheumatoid arthritis (RA). We tested whether the TLR4 inhibitor TAK-242 had potential as a remedy for rheumatoid arthritis. METHODS The therapeutic effect of TAK-242 was tested in vitro using the human rheumatoid fibroblast-like synoviocyte (FLS) line MH7A or primary human FLS and in an adjuvant-induced arthritis (AIA) rat model. RESULTS TAK-242 dose dependently inhibited the increased expression of IL-6, IL-8, MMP-1, and VEGF in LPS-stimulated MH7A cells. It also inhibited the expression of IL-6 and IL-8 in poly(I:C), TLR3 activator-stimulated primary FLS, but not in IL-1β-stimulated primary FLS. These findings suggest that TAK-242 blocks a specific signaling pathway to some degree. Further, TAK-242 slightly inhibited mobilization of NF-κB into nuclei. In the AIA rat model, TAK-242 significantly reversed the body weight and paw thickness of AIA rats to the normal state at a dose of 5 mg/kg, but not at 3 mg/kg, and reduced the increased serum level of IL-6 and VEGF in AIA rats. It also significantly ameliorated inflammatory symptoms of joint tissues at day 21 of treatment, according to histology and RT-PCR. CONCLUSIONS Based on the drug repositioning concept, TAK-242, which is used for the treatment of TLR4-mediated inflammatory diseases, shows potential for cost-effective development as a remedy for rheumatoid arthritis or to control the progression of RA.
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Affiliation(s)
- Snigdha Samarpita
- Immunopathology Lab, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India
| | - Joo Young Kim
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Kyunghee-daero 23, Dongdaemun-gu, Seoul, 02447, South Korea
| | - Mahaboob Khan Rasool
- Immunopathology Lab, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India
| | - Kyoung Soo Kim
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Kyunghee-daero 23, Dongdaemun-gu, Seoul, 02447, South Korea. .,East-West Bone and Joint Disease Research Institute, Kyung Hee University Hospital at Gangdong, Gandong-gu, Seoul, 05278, South Korea.
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30
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Saferding V, Blüml S. Innate immunity as the trigger of systemic autoimmune diseases. J Autoimmun 2019; 110:102382. [PMID: 31883831 DOI: 10.1016/j.jaut.2019.102382] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 12/12/2022]
Abstract
The innate immune system consists of a variety of elements controlling and participating in virtually all aspects of inflammation and immunity. It is crucial for host defense, but on the other hand its improper activation is also thought to be responsible for the generation of autoimmunity and therefore diseases such as autoimmune arthritides like rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), multiple sclerosis (MS) or inflammatory bowel disease. The innate immune system stands both at the beginning as well as the end of autoimmunity. On one hand, it regulates the activation of the adaptive immune system and the breach of self-tolerance, as antigen presenting cells (APCs), especially dendritic cells, are essential for the activation of naïve antigen specific T cells, a crucial step in the development of autoimmunity. Various factors controlling the function of dendritic cells have been identified that directly regulate lymphocyte homeostasis and in some instances the generation of organ specific autoimmunity. Moreover, microbial cues have been identified that are prerequisites for the generation of several specific autoimmune diseases. On the other hand, the innate immune system is also responsible for mediating the resulting organ damage underlying the clinical symptoms of a given autoimmune disease via production of proinflammatory cytokines that amplify local inflammation and further activate other immune or parenchymal cells in the vicinity, the generation of matrix degrading and proteolytic enzymes or reactive oxygen species directly causing tissue damage. In the last decades, molecular characterization of cell types and their subsets as well as both positive and negative regulators of immunity has led to the generation of various scenarios of how autoimmunity develops, which eventually might lead to the development of targeted interventions for autoimmune diseases. In this review, we try to summarize the elements that are contributing to the initiation and perpetuation of autoimmune responses.
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Affiliation(s)
| | - Stephan Blüml
- Department of Rheumatology, Medical University Vienna, Austria.
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31
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Frommer KW, Hasseli R, Schäffler A, Lange U, Rehart S, Steinmeyer J, Rickert M, Sarter K, Zaiss MM, Culmsee C, Ganjam G, Michels S, Müller-Ladner U, Neumann E. Free Fatty Acids in Bone Pathophysiology of Rheumatic Diseases. Front Immunol 2019; 10:2757. [PMID: 31849953 PMCID: PMC6901602 DOI: 10.3389/fimmu.2019.02757] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 11/11/2019] [Indexed: 01/10/2023] Open
Abstract
Obesity-in which free fatty acid (FFA) levels are chronically elevated-is a known risk factor for different rheumatic diseases, and obese patients are more likely to develop osteoarthritis (OA) also in non-weight-bearing joints. These findings suggest that FFA may also play a role in inflammation-related joint damage and bone loss in rheumatoid arthritis (RA) and OA. Therefore, the objective of this study was to analyze if and how FFA influence cells of bone metabolism in rheumatic diseases. When stimulated with FFA, osteoblasts from RA and OA patients secreted higher amounts of the proinflammatory cytokine interleukin (IL)-6 and the chemokines IL-8, growth-related oncogene α, and monocyte chemotactic protein 1. Receptor activator of nuclear factor kappa B ligand (RANKL), osteoprotegerin, and osteoblast differentiation markers were not influenced by FFA. Mineralization activity of osteoblasts correlated inversely with the level of FFA-induced IL-6 secretion. Expression of the Wnt signaling molecules, axin-2 and β-catenin, was not changed by palmitic acid (PA) or linoleic acid (LA), suggesting no involvement of the Wnt signaling pathway in FFA signaling for osteoblasts. On the other hand, Toll-like receptor 4 blockade significantly reduced PA-induced IL-8 secretion by osteoblasts, while blocking Toll-like receptor 2 had no effect. In osteoclasts, IL-8 secretion was enhanced by PA and LA particularly at the earliest time point of differentiation. Differences were observed between the responses of RA and OA osteoclasts. FFA might therefore represent a new molecular factor by which adipose tissue contributes to subchondral bone damage in RA and OA. In this context, their mechanisms of action appear to be dependent on inflammation and innate immune system rather than Wnt-RANKL pathways.
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Affiliation(s)
- Klaus W. Frommer
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
| | - Rebecca Hasseli
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
| | - Andreas Schäffler
- Department of Internal Medicine III, Endocrinology, Diabetes, Metabolism, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Uwe Lange
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
| | - Stefan Rehart
- Department of Orthopedics and Trauma Surgery, Agaplesion Markus Hospital, Frankfurt, Germany
| | - Jürgen Steinmeyer
- Department of Orthopaedics and Orthopaedic Surgery, University Hospital Giessen and Marburg, Giessen, Germany
| | - Markus Rickert
- Department of Orthopaedics and Orthopaedic Surgery, University Hospital Giessen and Marburg, Giessen, Germany
| | - Kerstin Sarter
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Mario M. Zaiss
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Carsten Culmsee
- Institute for Pharmacology and Clinical Pharmacy, University of Marburg, Marburg, Germany
- Center for Mind Brain and Behavior (CMBB), Universities of Marburg and Gießen, Marburg, Germany
| | - Goutham Ganjam
- Institute for Pharmacology and Clinical Pharmacy, University of Marburg, Marburg, Germany
- Center for Mind Brain and Behavior (CMBB), Universities of Marburg and Gießen, Marburg, Germany
- Department of Neurology, Philipps University Marburg, Marburg, Germany
| | - Susanne Michels
- Institute for Pharmacology and Clinical Pharmacy, University of Marburg, Marburg, Germany
- Center for Mind Brain and Behavior (CMBB), Universities of Marburg and Gießen, Marburg, Germany
| | - Ulf Müller-Ladner
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
| | - Elena Neumann
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
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32
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Emami J, Ansarypour Z. Receptor targeting drug delivery strategies and prospects in the treatment of rheumatoid arthritis. Res Pharm Sci 2019; 14:471-487. [PMID: 32038727 PMCID: PMC6937749 DOI: 10.4103/1735-5362.272534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Rheumatoid arthritis (RA), a chronic inflammatory disease, is characterized by cartilage damage, bone tissue destruction, morphological changes in synovial fluids, and synovial joint inflammation. The inflamed synovial tissue has potential for passive and active targeting because of enhanced permeability and retention effect and the existence of RA synovial macrophages and fibroblasts that selectively express surface receptors such as folate receptor β, CD44 and integrin αVβ. Although there are numerous interventions in RA treatment, they are not safe and effective. Therefore, it is important to develop new drug or drug delivery systems that specifically targets inflamed/swollen joints but attenuates other possible damages to healthy tissues. Recently some receptors such as toll-like receptors (TLRs), the nucleotide-binding oligomerization domain-like receptors, and Fc-γ receptor have been identified in synovial tissue and immune cells that are involved in induction or suppression of arthritis. Analysis of the TLR pathway has moreover suggested new insights into the pathogenesis of RA. In the present paper, we have reviewed drug delivery strategies based on receptor targeting with novel ligand-anchored carriers exploiting CD44, folate and integrin αVβ as well as TLRs expressed on synovial monocytes and macrophages and antigen presenting cells, for possible active targeting in RA. TLRs could not only open a new horizon for developing new drugs but also their antagonists or humanized monoclonal antibodies that block TLRS specially TLR4 and TLR9 signaling could be used as targeting agents to antigen presenting cells and dendritic cells. As a conclusion, common conventional receptors and multifunctional ligands that arte involved in targeting receptors or developing nanocarriers with appropriate ligands for TLRs can provide profoundly targeting drug delivery systems for the effective treatment of RA.
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Affiliation(s)
- Jaber Emami
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Zahra Ansarypour
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
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33
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Korneev KV, Sviriaeva EN, Mitkin NA, Gorbacheva AM, Uvarova AN, Ustiugova AS, Polanovsky OL, Kulakovskiy IV, Afanasyeva MA, Schwartz AM, Kuprash DV. Minor C allele of the SNP rs7873784 associated with rheumatoid arthritis and type-2 diabetes mellitus binds PU.1 and enhances TLR4 expression. Biochim Biophys Acta Mol Basis Dis 2019; 1866:165626. [PMID: 31785408 DOI: 10.1016/j.bbadis.2019.165626] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 11/08/2019] [Accepted: 11/26/2019] [Indexed: 12/19/2022]
Abstract
Toll-like receptor 4 (TLR4) is an innate immunity receptor predominantly expressed on myeloid cells and involved in the development of various diseases, many of them with complex genetics. Here we present data on functionality of single nucleotide polymorphism rs7873784 located in the 3'-untranslated region (3'-UTR) of TLR4 gene and associated with various pathologies involving chronic inflammation. We demonstrate that TLR4 3'-UTR strongly enhanced the activity of TLR4 promoter in U937 human monocytic cell line while minor rs7873784(C) allele created a binding site for transcription factor PU.1 (encoded by SPI1 gene), a known regulator of TLR4 expression. Increased binding of PU.1 further augmented the TLR4 transcription while PU.1 knockdown or complete disruption of the PU.1 binding site abrogated the effect. We hypothesize that additional functional PU.1 site may increase TLR4 expression in individuals carrying minor C variant of rs7873784 and modulate the development of certain pathologies, such as rheumatoid arthritis and type-2 diabetes mellitus.
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Affiliation(s)
- Kirill V Korneev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Ekaterina N Sviriaeva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Nikita A Mitkin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alisa M Gorbacheva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Aksinya N Uvarova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Alina S Ustiugova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Oleg L Polanovsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Ivan V Kulakovskiy
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia; Institute of Mathematical Problems of Biology, Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Marina A Afanasyeva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Anton M Schwartz
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Dmitry V Kuprash
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia.
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34
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Achek A, Shah M, Seo JY, Kwon HK, Gui X, Shin HJ, Cho EY, Lee BS, Kim DJ, Lee SH, Yoo TH, Kim MS, Choi S. Linear and Rationally Designed Stapled Peptides Abrogate TLR4 Pathway and Relieve Inflammatory Symptoms in Rheumatoid Arthritis Rat Model. J Med Chem 2019; 62:6495-6511. [PMID: 31283217 DOI: 10.1021/acs.jmedchem.9b00061] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A mounting evidence exists for the despicable role of the aberrant immune response in the pathogenesis of rheumatoid arthritis (RA), where toll-like receptor 4 (TLR4) can activate synovial fibroblasts that lead to the chronic inflammation and joint destruction, thus making TLR4 a potent drug target in RA. We report that novel TLR4-antagonizing peptide, PIP2, inhibits the induction of inflammatory biomarkers in vitro as well as in vivo. Systemically, PIP2 inhibits the lipopolysaccharide (LPS)-elicited TNF-α, IL-6, and IL-12p40 in a mouse model. The rationally designed cyclic derivative, cPIP2, is capable of inhibiting LPS-induced proinflammatory cytokines at significantly lower concentration as compared to PIP2 (PIP2 IC50 = 20 μM, cPIP2 IC50 = 5 μM). Finally, cPIP2 was able to relieve the inflammatory symptoms and synovial tissue destruction in the RA rat model. Cumulatively, these data suggest that PIP2 and cPIP2 hold strong promise for the development of peptide-based immunotherapeutics that could be of great value in curbing TLR-related immune complications including RA.
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Affiliation(s)
- Asma Achek
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Masaud Shah
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Ji Young Seo
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Hyuk-Kwon Kwon
- Department of Orthopedics and Rehabilitation , Yale University School of Medicine , New Haven , Connecticut 06520-8071 , United States
| | - Xiangai Gui
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Hyeon-Jun Shin
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Eun-Young Cho
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Byeong Sung Lee
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Dong-Jin Kim
- Division of Nephrology, Department of Internal Medicine , Kyung Hee University Hospital at Gangdong , Seoul 05278 , Korea
| | - Sang Ho Lee
- Division of Nephrology, Department of Internal Medicine , Kyung Hee University Hospital at Gangdong , Seoul 05278 , Korea
| | - Tae Hyeon Yoo
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
| | - Sangdun Choi
- Department of Molecular Science and Technology , Ajou University , Suwon 16499 , Korea
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35
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Fang H, De Wolf H, Knezevic B, Burnham KL, Osgood J, Sanniti A, Lledó Lara A, Kasela S, De Cesco S, Wegner JK, Handunnetthi L, McCann FE, Chen L, Sekine T, Brennan PE, Marsden BD, Damerell D, O'Callaghan CA, Bountra C, Bowness P, Sundström Y, Milani L, Berg L, Göhlmann HW, Peeters PJ, Fairfax BP, Sundström M, Knight JC. A genetics-led approach defines the drug target landscape of 30 immune-related traits. Nat Genet 2019; 51:1082-1091. [PMID: 31253980 PMCID: PMC7124888 DOI: 10.1038/s41588-019-0456-1] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 05/24/2019] [Indexed: 12/22/2022]
Abstract
Most candidate drugs currently fail later-stage clinical trials, largely due to poor prediction of efficacy on early target selection1. Drug targets with genetic support are more likely to be therapeutically valid2,3, but the translational use of genome-scale data such as from genome-wide association studies for drug target discovery in complex diseases remains challenging4-6. Here, we show that integration of functional genomic and immune-related annotations, together with knowledge of network connectivity, maximizes the informativeness of genetics for target validation, defining the target prioritization landscape for 30 immune traits at the gene and pathway level. We demonstrate how our genetics-led drug target prioritization approach (the priority index) successfully identifies current therapeutics, predicts activity in high-throughput cellular screens (including L1000, CRISPR, mutagenesis and patient-derived cell assays), enables prioritization of under-explored targets and allows for determination of target-level trait relationships. The priority index is an open-access, scalable system accelerating early-stage drug target selection for immune-mediated disease.
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Affiliation(s)
- Hai Fang
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | - Bogdan Knezevic
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Katie L Burnham
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Julie Osgood
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Anna Sanniti
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Alicia Lledó Lara
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Silva Kasela
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Stephane De Cesco
- Alzheimer's Research UK Oxford Drug Discovery Institute, Target Discovery Institute, University of Oxford, Oxford, UK
| | | | | | - Fiona E McCann
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Liye Chen
- Botnar Research Centre, University of Oxford, Oxford, UK
| | - Takuya Sekine
- Botnar Research Centre, University of Oxford, Oxford, UK
| | - Paul E Brennan
- Alzheimer's Research UK Oxford Drug Discovery Institute, Target Discovery Institute, University of Oxford, Oxford, UK
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Brian D Marsden
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - David Damerell
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Chris A O'Callaghan
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| | - Chas Bountra
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Paul Bowness
- Botnar Research Centre, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| | - Yvonne Sundström
- Structural Genomics Consortium, Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Lili Milani
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Louise Berg
- Structural Genomics Consortium, Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | | | | | - Benjamin P Fairfax
- Department of Oncology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Michael Sundström
- Structural Genomics Consortium, Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Julian C Knight
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK.
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36
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Eichhorst A, Daniel C, Rzepka R, Sehnert B, Nimmerjahn F, Voll RE, Chevalier N. Relevance of Receptor for Advanced Glycation end Products (RAGE) in Murine Antibody-Mediated Autoimmune Diseases. Int J Mol Sci 2019; 20:ijms20133234. [PMID: 31266174 PMCID: PMC6651235 DOI: 10.3390/ijms20133234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 12/24/2022] Open
Abstract
It is incompletely understood how self-antigens become targets of humoral immunity in antibody-mediated autoimmune diseases. In this context, alarmins are discussed as an important level of regulation. Alarmins are recognized by various receptors, such as receptor for advanced glycation end products (RAGE). As RAGE is upregulated under inflammatory conditions, strongly binds nucleic acids and mediates pro-inflammatory responses upon alarmin recognition, our aim was to examine its contribution to immune complex-mediated autoimmune diseases. This question was addressed employing RAGE−/− animals in murine models of pristane-induced lupus, collagen-induced, and serum-transfer arthritis. Autoantibodies were assessed by enzyme-linked immunosorbent assay, renal disease by quantification of proteinuria and histology, arthritis by scoring joint inflammation. The associated immune status was determined by flow cytometry. In both disease entities, we detected tendentiously decreased autoantibody levels in RAGE−/− mice, however no differences in clinical outcome. In accordance with autoantibody levels, a subgroup of the RAGE−/− animals showed a decrease in plasma cells, and germinal center B cells and an increase in follicular B cells. Based on our results, we suggest that RAGE deficiency alone does not significantly affect antibody-mediated autoimmunity. RAGE may rather exert its effects along with other receptors linking environmental factors to auto-reactive immune responses.
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Affiliation(s)
- Alexandra Eichhorst
- Department of Rheumatology and Clinical Immunology, Medical Centre-University of Freiburg, Faculty of Medicine, 79106 Freiburg, Baden-Wuerttemberg, Germany
| | - Christoph Daniel
- Department of Nephropathology, Friedrich-Alexander University (FAU) of Erlangen-Nuremberg, 91054 Erlangen, Bavaria, Germany
| | - Rita Rzepka
- Department of Rheumatology and Clinical Immunology, Medical Centre-University of Freiburg, Faculty of Medicine, 79106 Freiburg, Baden-Wuerttemberg, Germany
| | - Bettina Sehnert
- Department of Rheumatology and Clinical Immunology, Medical Centre-University of Freiburg, Faculty of Medicine, 79106 Freiburg, Baden-Wuerttemberg, Germany
| | - Falk Nimmerjahn
- Department of Biology, Friedrich-Alexander University (FAU) of Erlangen-Nuremberg, 91058 Erlangen, Bavaria, Germany
| | - Reinhard E Voll
- Department of Rheumatology and Clinical Immunology, Medical Centre-University of Freiburg, Faculty of Medicine, 79106 Freiburg, Baden-Wuerttemberg, Germany
| | - Nina Chevalier
- Department of Rheumatology and Clinical Immunology, Medical Centre-University of Freiburg, Faculty of Medicine, 79106 Freiburg, Baden-Wuerttemberg, Germany.
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Bruno K, Woller SA, Miller YI, Yaksh TL, Wallace M, Beaton G, Chakravarthy K. Targeting toll-like receptor-4 (TLR4)-an emerging therapeutic target for persistent pain states. Pain 2018; 159:1908-1915. [PMID: 29889119 PMCID: PMC7890571 DOI: 10.1097/j.pain.0000000000001306] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Toll-like receptors (TLRs) are a family of pattern recognition receptors that initiate signaling in innate and adaptive immune pathways. The highly conserved family of transmembrane proteins comprises an extracellular domain that recognizes exogenous and endogenous danger molecules and an ectodomain that activates downstream pathways in response. Recent studies suggest that continuous activation or dysregulation of TLR signaling may contribute to chronic disease states. The receptor is located not only on inflammatory cells (meningeal and peripheral macrophages) but on neuraxial glia (microglia and astrocytes), Schwann cells, fibroblasts, dorsal root ganglia, and dorsal horn neurons. Procedures blocking TLR functionality have shown pronounced effects on pain behavior otherwise observed in models of chronic inflammation and nerve injury. This review addresses the role of TLR4 as an emerging therapeutic target for the evolution of persistent pain and its role in noncanonical signaling, mediating anomalous pro-algesic actions of opiates. Accordingly, molecules targeting inhibition of this receptor have promise as disease-modifying and opioid-sparing alternatives for persistent pain states.
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Affiliation(s)
- Kelly Bruno
- Department of Anesthesiology and Pain Medicine, University of California San Diego Health Sciences, La Jolla, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
- Center for Excellence in Stress and Mental Health, VA San Diego Healthcare System, San Diego, CA, USA
| | - Sarah A. Woller
- Department of Anesthesiology and Pain Medicine, University of California San Diego Health Sciences, La Jolla, CA, USA
| | - Yury I. Miller
- Department of Medicine, University of California San Diego Health Science, La Jolla, CA, USA
| | - Tony L. Yaksh
- Department of Anesthesiology and Pain Medicine, University of California San Diego Health Sciences, La Jolla, CA, USA
- Douleur Therapeutics, 10225 Barnes Canyon Road, Suite A104, San Diego, CA, USA
| | - Mark Wallace
- Department of Anesthesiology and Pain Medicine, University of California San Diego Health Sciences, La Jolla, CA, USA
- Douleur Therapeutics, 10225 Barnes Canyon Road, Suite A104, San Diego, CA, USA
| | - Graham Beaton
- Douleur Therapeutics, 10225 Barnes Canyon Road, Suite A104, San Diego, CA, USA
| | - Krishnan Chakravarthy
- Department of Anesthesiology and Pain Medicine, University of California San Diego Health Sciences, La Jolla, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
- Douleur Therapeutics, 10225 Barnes Canyon Road, Suite A104, San Diego, CA, USA
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Bone erosions in rheumatoid arthritis: recent developments in pathogenesis and therapeutic implications. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2018; 18:304-319. [PMID: 30179207 PMCID: PMC6146189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Bone erosions develop early in the course of rheumatoid arthritis (RA) and deteriorate progressively, causing joint damage and resulting in impaired functional capacity of patients. During the last years, considerable number of studies has increased our understanding of the pathogenetic mechanisms mediating the development of bone erosions in RA. Increased production of RANKL and other cytokines, dysregulation of innate immune mechanisms, autoantibodies specific to RA and alterations of microRNA expression stimulate differentiation and function of osteoclasts, which are responsible for the development of bone erosions. Besides, increased levels of cytokines, overproduction of antagonists of the canonical Wnt signaling pathway and deficient production of bone morphogenetic proteins result in impaired osteoblast differentiation and function, undermining the capacity of bone erosions to repair. Disease-modifying antirheumatic drugs, synthetic or biological, currently used in the treatment of RA, can halt the progression of bone erosions and may even lead to partial repair, although complete repair is unattainable. Targeting pathogenetic mechanisms participating in the erosive process may add to the therapeutic effect of DMARDs and help in the prevention or repair of bone erosions. However, more studies are still needed to confirm whether such therapeutic strategies are effective.
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Kim SH, Bang J, Son CN, Baek WK, Kim JM. Grape seed proanthocyanidin extract ameliorates murine autoimmune arthritis through regulation of TLR4/MyD88/NF-κB signaling pathway. Korean J Intern Med 2018; 33:612-621. [PMID: 27271273 PMCID: PMC5943648 DOI: 10.3904/kjim.2016.053] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/08/2016] [Accepted: 04/27/2016] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND/AIMS Grape seed proanthocyanidin extract (GSPE) has been reported to have a beneficial effect on regulating inf lammation. However, the anti-inflammatory mechanism of GSPE remains unclear. The aim of this study was to verify the influence of GSPE on the Toll-like receptor 4 (TLR4)-mediated signaling pathway in the regulation of murine autoimmune arthritis. METHODS Collagen-induced arthritis (CIA) was induced in dilute brown non-agouti (DBA)/1J mice. The mice were treated with GSPE (0 or 100 mg/kg) intraperitoneally. The severity of arthritis was assessed clinically, biochemically, and histologically. Immunostaining for TLR4 was performed. The expressions of TLR4 and downstream signaling molecules were analyzed by Western blot. The effect of GSPE on lipopolysaccharide (LPS)-induced TLR4 activation was also evaluated using RAW264.7 cells and fibroblast-like synoviocytes (FLSs) from patients with rheumatoid arthritis and from those with osteoarthritis. RESULTS GSPE attenuated the clinical severity of arthritis and decreased histological damage. GSPE treatment reduced the number of TLR4-stained cells in the synovium of mice with CIA. GSPE also downregulated the expression of TLR4, myeloid differentiation factor 88 (MyD88) and phosphorylated IκBα synovial protein in CIA mice. Concurrently, GSPE inhibited the nuclear translocation of nuclear factor-κB (NF-κB) subunits (p65 and p50). LPS-induced TLR4 activation was suppressed by GSPE in human FLS as well as in murine macrophages in vitro. CONCLUSIONS Our results demonstrated that GSPE ameliorated CIA by regulating the TLR4-MyD88-NF-κB signaling pathway.
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Affiliation(s)
- Sang-Hyon Kim
- Division of Rheumatology, Department of Internal Medicine, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - Jihye Bang
- Keimyung University School of Medicine, Daegu, Korea
| | - Chang-Nam Son
- Division of Rheumatology, Department of Internal Medicine, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - Won-Ki Baek
- Department of Microbiology, Keimyung University School of Medicine, Daegu, Korea
| | - Ji-Min Kim
- Division of Rheumatology, Department of Internal Medicine, Keimyung University Dongsan Medical Center, Daegu, Korea
- Correspondence to Ji-Min Kim, M.D. Division of Rheumatology, Department of Internal Medicine, Keimyung University Dongsan Medical Center, 56 Dalseong-ro, Jung-gu, Daegu 41931, Korea Tel: +82-53-250-7410 Fax: +82-53-250-7434 E-mail:
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Li H, Guan SB, Lu Y, Wang F. MiR-140-5p inhibits synovial fibroblasts proliferation and inflammatory cytokines secretion through targeting TLR4. Biomed Pharmacother 2017; 96:208-214. [DOI: 10.1016/j.biopha.2017.09.079] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/11/2017] [Accepted: 09/18/2017] [Indexed: 12/12/2022] Open
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Quero L, Hanser E, Manigold T, Tiaden AN, Kyburz D. TLR2 stimulation impairs anti-inflammatory activity of M2-like macrophages, generating a chimeric M1/M2 phenotype. Arthritis Res Ther 2017; 19:245. [PMID: 29096690 PMCID: PMC5667453 DOI: 10.1186/s13075-017-1447-1] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 10/03/2017] [Indexed: 12/11/2022] Open
Abstract
Background Toll-like receptors (TLRs) and macrophages play an important role in rheumatoid arthritis (RA). Currently, it is not clear whether inflammatory M1 or anti-inflammatory M2 predominate among the resident macrophages in the synovium. In the present study, we set out to investigate the impact of TLR stimulation on monocyte-derived M1 and M2 macrophage function and phenotype by mimicking the exposure to abundant TLR agonists as occurs in the context of RA. The response of macrophage subsets to TLR2 and TLR4 activation was evaluated on cluster of differentiation (CD) marker profile; cytokine secretion; gene expression; and NF-κB, interferon regulatory factors 3 and 7 (IRF3/7), and mitogen-activated protein kinase (MAPK) activation. Methods Human monocytes were isolated from peripheral blood of healthy individuals and patients with RA and differentiated into M1-like and M2-like macrophages by granulocyte-macrophage colony-stimulating factor (GM-CSF) and macrophage colony-stimulating factor (M-CSF), respectively. Cells were either (1) stimulated with TLR ligands Pam3 or lipopolysaccharide (LPS) or (2) classically activated via interferon (IFN)-γ/LPS. Cytokine production was measured by enzyme-linked immunosorbent assay, and gene expression was measured by qPCR. Cells were stained for CD markers and analyzed by fluorescence-activated cell sorting. NF-κB, IRF3/7, and MAPKs were detected by Western blotting. Results Monocyte-derived macrophages of healthy donors (HD) or patients with RA displayed comparable subset-specific phenotypes upon exposure to TLR agonists. CD14 and CD163 marker expression on M2 macrophages did not change upon TLR2 and TLR4 engagement. By contrast, M2 gene markers HMOX1, FOLR2, and SLC40A1 were decreased. Importantly, M2 macrophages derived from HD or patients with RA showed both a decreased ratio of interleukin (IL)-10/IL-6 and IL-10/IL-8 upon stimulation with TLR2 ligand Pam3 compared with TLR4 ligand LPS. Gene expression of TLR2 was increased, whereas TLR4 expression was decreased, by TLR ligand stimulation. MAPKs p38, extracellular signal-regulated kinase 1/2, and c-Jun N-terminal kinase were activated more strongly in M2 than in M1 macrophages by Pam3 or LPS. Conclusions We show that the anti-inflammatory activity of M2 macrophages is reduced in the presence of abundant TLR2 ligands without significant changes in cell surface markers. Thus, the classical M1/M2 paradigm based on cellular markers does not apply to macrophage functions in inflammatory conditions such as RA. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1447-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lilian Quero
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland. .,Department of Biomedicine, University of Basel, Petersplatz 10, 4051, Basel, Switzerland.
| | - Edveena Hanser
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Petersplatz 10, 4051, Basel, Switzerland
| | - Tobias Manigold
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Petersplatz 10, 4051, Basel, Switzerland
| | - André N Tiaden
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Petersplatz 10, 4051, Basel, Switzerland
| | - Diego Kyburz
- Experimental Rheumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University of Basel, Petersplatz 10, 4051, Basel, Switzerland
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Fotis L, Shaikh N, Baszis KW, Samson CM, Lev-Tzion R, French AR, Tarr PI. Serologic Evidence of Gut-driven Systemic Inflammation in Juvenile Idiopathic Arthritis. J Rheumatol 2017; 44:1624-1631. [PMID: 28916545 PMCID: PMC5904838 DOI: 10.3899/jrheum.161589] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2017] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Accumulating evidence links juvenile idiopathic arthritis (JIA) to nonhost factors such as gut microbes. We hypothesize that children with new-onset JIA have increased intestinal bacterial translocation and circulating lipopolysaccharide (LPS). METHODS We studied systemic treatment-naive patients with JIA [polyarticular JIA, n = 22, oligoarticular JIA, n = 31, and spondyloarthropathies (SpA), n = 16], patients with established inflammatory bowel disease-related arthritis (IBD-RA, n = 11), and 34 healthy controls. We determined circulating IgG reactivity against LPS, LPS-binding protein (LBP), α-1-acid glycoprotein (α-1AGP), and C-reactive protein (CRP) in plasma or serum from these patients and controls. Juvenile Arthritis Disease Activity Score (JADAS-27) was calculated for patients with JIA. RESULTS Circulating anticore LPS antibody concentrations in patients with polyarticular JIA (p = 0.001), oligoarticular JIA (p = 0.024), and SpA (p = 0.001) were significantly greater than in controls, but there were no significant intergroup differences. Circulating LBP concentrations were also significantly greater in patients with polyarticular JIA (p = 0.001), oligoarticular JIA (p = 0.002), and SpA (p = 0.006) than controls, as were α-1AGP concentrations (p = 0.001, 0.001, and 0.003, respectively). No differences were observed between controls and patients with IBD-RA in any of the assays. Circulating concentrations of LBP and α-1AGP correlated strongly with CRP concentrations (r = 0.78 and r = 0.66, respectively). Anticore LPS antibody levels and CRP (r = 0.26), LBP (r = 0.24), and α-AGP (r = 0.22) concentrations had weaker correlations. JADAS-27 scores correlated with LBP (r = 0.66) and α-1AGP concentrations (r = 0.58). CONCLUSION Children with polyarticular JIA, oligoarticular JIA, and SpA have evidence of increased exposure to gut bacterial products. These data reinforce the concept that the intestine is a source of immune stimulation in JIA.
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Affiliation(s)
- Lampros Fotis
- Divisions of Rheumatology, Hepatology, and Nutrition, Department of Pediatrics, Washington University School of Medicine, St Louis, MO 63110, USA
- Nottingham University Hospitals NHS Trust, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Nurmohammad Shaikh
- Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Kevin W. Baszis
- Divisions of Rheumatology, Hepatology, and Nutrition, Department of Pediatrics, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Charles M. Samson
- Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Raffi Lev-Tzion
- Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University School of Medicine, St Louis, MO 63110, USA
- Juliet Keidan Institute of Pediatric Gastroenterology and Nutrition, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Anthony R. French
- Divisions of Rheumatology, Hepatology, and Nutrition, Department of Pediatrics, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Phillip I. Tarr
- Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Washington University School of Medicine, St Louis, MO 63110, USA
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Sakkas LI, Daoussis D, Liossis SN, Bogdanos DP. The Infectious Basis of ACPA-Positive Rheumatoid Arthritis. Front Microbiol 2017; 8:1853. [PMID: 29033912 PMCID: PMC5627006 DOI: 10.3389/fmicb.2017.01853] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/11/2017] [Indexed: 12/13/2022] Open
Abstract
Rheumatoid arthritis (RA) is associated with HLA-DRB1 shared epitope (HLA-DRB1SE) and anti-citrullinated protein autoantibodies (ACPAs). ACPAs precedes the onset of clinical and subclinical RA. There are strong data for three infectious agents as autoimmunity triggers in RA, namely Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans causes of periodontal disease (PD), and Epstein-Barr virus (EBV). P. gingivalis expresses arginine gingipains, that cleave proteins at the arginine residues, and peptidyl arginine deiminase (PPAD), which citrullinates arginine residues of proteins, thus forming neoantigens that lead to ACPA production. Peripheral blood plasmablasts from ACPA+RA patients produce ACPAs the majority of which react against P. gingivalis. A. actinocycetemcomitans produces leukotoxin A, a toxin that forms pores in the neutrophil membranes and leads to citrullination and release of citrullinated autoantigens in the gums. EBV can infect B cells and epithelial cells and resides as latent infection in resting B cells. Abs against citrullinated peptides derived from EBV nuclear antigen appear years before RA and cross-react with human citrullinated fibrin. Citrullinated proteins are potential arthritogenic autoantigens in RA. The conversion of arginine to citrulline increases the peptide binding affinity to HLA-DRB1SE. Also, citrullinated fibrinogen induces arthritis in HLA-DRB1*0401 transgenic mice, and transfer of their splenic T cells causes arthritis to recipient mice.
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Affiliation(s)
- Lazaros I Sakkas
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Dimitrios Daoussis
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, University of Patras, Patras, Greece
| | - Stamatis-Nick Liossis
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, University of Patras, Patras, Greece
| | - Dimitrios P Bogdanos
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
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Lee JH, Kim B, Jin WJ, Kim HH, Ha H, Lee ZH. Pathogenic roles of CXCL10 signaling through CXCR3 and TLR4 in macrophages and T cells: relevance for arthritis. Arthritis Res Ther 2017; 19:163. [PMID: 28724396 PMCID: PMC5518115 DOI: 10.1186/s13075-017-1353-6] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 05/30/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by uncontrolled joint inflammation and destruction of bone and cartilage. We previously reported that C-X-C motif chemokine 10 (CXCL10; also called IP-10) has important roles in joint inflammation and bone destruction in arthritis. However, the specific mechanisms by which CXCL10 regulates the recruitment of inflammatory cells and the production of osteoclastogenic cytokines in RA progression are not fully understood. METHODS Bone marrow-derived macrophages and CD4+ T cells were isolated from wild-type (WT), Cxcl10 -/-, and Cxcr3 -/- mice. CXCL10-induced migration was performed using a Boyden chamber, and CXCL10-stimulated production of osteoclastogenic cytokines was measured by quantitative real-time PCR and ELISA. Collagen antibody-induced arthritis (CAIA) was induced by administration of collagen type II antibodies and lipopolysaccharide to the mice. Clinical scores were analyzed and hind paws were collected for high-resolution micro-CT, and histomorphometry. Serum was used to assess bone turnover and levels of osteoclastogenic cytokines. RESULTS CXCL10 increased the migration of inflammatory cells through C-X-C chemokine receptor 3 (CXCR3)-mediated, but not toll-like receptor 4 (TLR4)-mediated, ERK activation. Interestingly, both receptors CXCR3 and TLR4 were simultaneously required for CXCL10-stimulated production of osteoclastogenic cytokines in CD4+ T cells. Furthermore, calcineurin-dependent NFATc1 activation was essential for CXCL10-induced RANKL expression. In vivo, F4/80+ macrophages and CD4+ T cells robustly infiltrated into synovium of WT mice with CAIA but were significantly reduced in both Cxcl10 -/- and Cxcr3 -/- mice. Serum concentrations of osteoclastogenic cytokines and bone destruction were also reduced in the knockout mice, leading to attenuated progression of arthritis. CONCLUSION These findings highlight the importance of CXCL10 signaling in the pathogenesis of RA and provide previously unidentified details of the mechanisms by which CXCL10 promotes the development of arthritis.
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Affiliation(s)
- Jong-Ho Lee
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Bongjun Kim
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Won Jong Jin
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Hong-Hee Kim
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Hyunil Ha
- Clinical Research Division, Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, 483 Expo-Ro, Yuseong-Gu, Daejeon, 305-811, Republic of Korea.
| | - Zang Hee Lee
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea.
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Rogier R, Ederveen THA, Boekhorst J, Wopereis H, Scher JU, Manasson J, Frambach SJCM, Knol J, Garssen J, van der Kraan PM, Koenders MI, van den Berg WB, van Hijum SAFT, Abdollahi-Roodsaz S. Aberrant intestinal microbiota due to IL-1 receptor antagonist deficiency promotes IL-17- and TLR4-dependent arthritis. MICROBIOME 2017; 5:63. [PMID: 28645307 PMCID: PMC5481968 DOI: 10.1186/s40168-017-0278-2] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 05/23/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Perturbation of commensal intestinal microbiota has been associated with several autoimmune diseases. Mice deficient in interleukin-1 receptor antagonist (Il1rn -/- mice) spontaneously develop autoimmune arthritis and are susceptible to other autoimmune diseases such as psoriasis, diabetes, and encephalomyelitis; however, the mechanisms of increased susceptibility to these autoimmune phenotypes are poorly understood. We investigated the role of interleukin-1 receptor antagonist (IL-1Ra) in regulation of commensal intestinal microbiota, and assessed the involvement of microbiota subsets and innate and adaptive mucosal immune responses that underlie the development of spontaneous arthritis in Il1rn -/- mice. RESULTS Using high-throughput 16S rRNA gene sequencing, we show that IL-1Ra critically maintains the diversity and regulates the composition of intestinal microbiota in mice. IL-1Ra deficiency reduced the intestinal microbial diversity and richness, and caused specific taxonomic alterations characterized by overrepresented Helicobacter and underrepresented Ruminococcus and Prevotella. Notably, the aberrant intestinal microbiota in IL1rn -/- mice specifically potentiated IL-17 production by intestinal lamina propria (LP) lymphocytes and skewed the LP T cell balance in favor of T helper 17 (Th17) cells, an effect transferable to WT mice by fecal microbiota. Importantly, LP Th17 cell expansion and the development of spontaneous autoimmune arthritis in IL1rn -/- mice were attenuated under germ-free condition. Selective antibiotic treatment revealed that tobramycin-induced alterations of commensal intestinal microbiota, i.e., reduced Helicobacter, Flexispira, Clostridium, and Dehalobacterium, suppressed arthritis in IL1rn -/- mice. The arthritis phenotype in IL1rn -/- mice was previously shown to depend on Toll-like receptor 4 (TLR4). Using the ablation of both IL-1Ra and TLR4, we here show that the aberrations in the IL1rn -/- microbiota are partly TLR4-dependent. We further identify a role for TLR4 activation in the intestinal lamina propria production of IL-17 and cytokines involved in Th17 differentiation preceding the onset of arthritis. CONCLUSIONS These findings identify a critical role for IL1Ra in maintaining the natural diversity and composition of intestinal microbiota, and suggest a role for TLR4 in mucosal Th17 cell induction associated with the development of autoimmune disease in mice.
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Affiliation(s)
- Rebecca Rogier
- Experimental Rheumatology (272), Radboud University Medical Center, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Thomas H. A. Ederveen
- Experimental Rheumatology (272), Radboud University Medical Center, PO Box 9101, 6500HB Nijmegen, The Netherlands
- Centre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jos Boekhorst
- Centre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- NIZO food research, Ede, The Netherlands
| | - Harm Wopereis
- Danone Nutricia Research, Utrecht, The Netherlands
- Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
| | - Jose U. Scher
- Division of Rheumatology, Department of Medicine, New York University School of Medicine, 301 East 17th Street, Room 1611A, New York, USA
| | - Julia Manasson
- Division of Rheumatology, Department of Medicine, New York University School of Medicine, 301 East 17th Street, Room 1611A, New York, USA
| | - Sanne J. C. M. Frambach
- Experimental Rheumatology (272), Radboud University Medical Center, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Jan Knol
- Danone Nutricia Research, Utrecht, The Netherlands
- Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
| | - Johan Garssen
- Danone Nutricia Research, Utrecht, The Netherlands
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Peter M. van der Kraan
- Experimental Rheumatology (272), Radboud University Medical Center, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Marije I. Koenders
- Experimental Rheumatology (272), Radboud University Medical Center, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Wim B. van den Berg
- Experimental Rheumatology (272), Radboud University Medical Center, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Sacha A. F. T. van Hijum
- Centre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- NIZO food research, Ede, The Netherlands
| | - Shahla Abdollahi-Roodsaz
- Experimental Rheumatology (272), Radboud University Medical Center, PO Box 9101, 6500HB Nijmegen, The Netherlands
- Division of Rheumatology, Department of Medicine, New York University School of Medicine, 301 East 17th Street, Room 1611A, New York, USA
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Ghatak S, Hascall VC, Markwald RR, Feghali-Bostwick C, Artlett CM, Gooz M, Bogatkevich GS, Atanelishvili I, Silver RM, Wood J, Thannickal VJ, Misra S. Transforming growth factor β1 (TGFβ1)-induced CD44V6-NOX4 signaling in pathogenesis of idiopathic pulmonary fibrosis. J Biol Chem 2017; 292:10490-10519. [PMID: 28389561 DOI: 10.1074/jbc.m116.752469] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 04/06/2017] [Indexed: 01/06/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive clinical syndrome of fatal outcome. The lack of information about the signaling pathways that sustain fibrosis and the myofibroblast phenotype has prevented the development of targeted therapies for IPF. Our previous study showed that isolated fibrogenic lung fibroblasts have high endogenous levels of the hyaluronan receptor, CD44V6 (CD44 variant containing exon 6), which enhances the TGFβ1 autocrine signaling and induces fibroblasts to transdifferentiate into myofibroblasts. NADPH oxidase 4 (NOX4) enzyme, which catalyzes the reduction of O2 to hydrogen peroxide (H2O2), has been implicated in the cardiac and lung myofibroblast phenotype. However, whether CD44V6 regulates NOX4 to mediate tissue repair and fibrogenesis is not well-defined. The present study assessed the mechanism of how TGF-β-1-induced CD44V6 regulates the NOX4/reactive oxygen species (ROS) signaling that mediates the myofibroblast differentiation. Specifically, we found that NOX4/ROS regulates hyaluronan synthesis and the transcription of CD44V6 via an effect upon AP-1 activity. Further, CD44V6 is part of a positive-feedback loop with TGFβ1/TGFβRI signaling that acts to increase NOX4/ROS production, which is required for myofibroblast differentiation, myofibroblast differentiation, myofibroblast extracellular matrix production, myofibroblast invasion, and myofibroblast contractility. Both NOX4 and CD44v6 are up-regulated in the lungs of mice subjected to experimental lung injury and in cases of human IPF. Genetic (CD44v6 shRNA) or a small molecule inhibitor (CD44v6 peptide) targeting of CD44v6 abrogates fibrogenesis in murine models of lung injury. These studies support a function for CD44V6 in lung fibrosis and offer proof of concept for therapeutic targeting of CD44V6 in lung fibrosis disorders.
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Affiliation(s)
- Shibnath Ghatak
- From the Department of Regenerative Medicine and Cell Biology,
| | - Vincent C Hascall
- the Department of Biomedical Engineering/ND20, Cleveland Clinic, Cleveland, Ohio 44195
| | | | | | - Carol M Artlett
- the Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, Pennsylvania 19129
| | - Monika Gooz
- the College of Pharmacy/Pharmaceutical Biomedical Science, Medical University of South Carolina, Charleston, South Carolina 29425
| | | | - Ilia Atanelishvili
- the Division of Rheumatology and Immunology, Department of Medicine, and
| | - Richard M Silver
- the Division of Rheumatology and Immunology, Department of Medicine, and
| | - Jeanette Wood
- Genkyotex, 16 Chemin des Aulx, CH-1228 Plan-les-Ouates Geneva, Switzerland, and
| | - Victor J Thannickal
- the Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294-0006
| | - Suniti Misra
- From the Department of Regenerative Medicine and Cell Biology,
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Kuuliala K, Kuuliala A, Hämäläinen M, Koivuniemi R, Kautiainen H, Moilanen E, Repo H, Leirisalo-Repo M. Impaired Akt Phosphorylation in Monocytes of Patients with Rheumatoid Arthritis. Scand J Immunol 2017; 85:155-161. [PMID: 27992958 DOI: 10.1111/sji.12521] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 12/10/2016] [Indexed: 12/13/2022]
Abstract
It has been proposed that the Akt kinase pathway provides a regulatory mechanism to limit the inflammatory response. We examined the activation of Akt upon lipopolysaccharide (LPS) challenge in monocytes of patients with rheumatoid arthritis (RA) and correlated it with disease activity. Twelve subjects with recent-onset, DMARD-naïve RA, thirteen patients with chronic, DMARD therapy-non-responding RA and 27 healthy volunteers provided whole blood samples for phosphospecific flow cytometric measurement of unstimulated and LPS-stimulated Akt phosphorylation at serine 473 in monocytes, determined in relative fluorescence units (RFU). Activation capability, that is responsiveness of monocytes, was determined as the difference between stimulated and unstimulated samples and compared between groups using Mann-Whitney test. CRP and ESR, swollen and tender joint counts, patients' global assessment of disease activity, DAS28 score and plasma IL-6 determined by ELISA were correlated with Akt activation using Spearman method. Median (interquartile range) Akt activation capability was significantly lower in DMARD-naïve (379 RFU [285, 432], P = 0.016) and even lower in DMARD-non-responding RA (258 RFU [213, 338], P < 0.001), compared to healthy controls (505 RFU[408, 639]) and showed a negative correlation with swollen joint count (r = -0.48, CI -0.78 to -0.05, P = 0.014), CRP (r = -0.42, CI -0.80 to -0.02, P = 0.039) and plasma IL-6 levels (r = -0.44, CI -0.65 to -0.17, P = 0.001). In conclusion, Akt activation capability of monocytes is low in early untreated RA and even lower in chronic, DMARD-non-responding RA, suggesting a role for Akt pathway in the pathogenesis of RA.
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Affiliation(s)
- K Kuuliala
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - A Kuuliala
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - M Hämäläinen
- The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - R Koivuniemi
- Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - H Kautiainen
- Primary Health Care and General Practice, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.,Unit of Primary Health Care, Kuopio University Hospital, Kuopio, Finland
| | - E Moilanen
- The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - H Repo
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - M Leirisalo-Repo
- Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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48
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Arthritis models: usefulness and interpretation. Semin Immunopathol 2017; 39:469-486. [PMID: 28349194 DOI: 10.1007/s00281-017-0622-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/09/2017] [Indexed: 12/20/2022]
Abstract
Animal models of arthritis are used to better understand pathophysiology of a disease or to seek potential therapeutic targets or strategies. Focusing on models currently used for studying rheumatoid arthritis, we show here in which extent models were invaluable to enlighten different mechanisms such as the role of innate immunity, T and B cells, vessels, or microbiota. Moreover, models were the starting point of in vivo application of cytokine-blocking strategies such as anti-TNF or anti-IL-6 treatments. The most popular models are the different types of collagen-induced arthritis and arthritis in KBN mice. As spontaneous arthritides, human TNF-α transgenic mice are a reliable model. It is mandatory to use animal models in the respect of ethical procedure, particularly regarding the number of animals and the control of pain. Moreover, design of experiments should be of the highest level, animal models of arthritis being dedicated to exploration of well-based novelties, and never used for confirmation or replication of already proven concepts. The best interpretations of data in animal models of arthritis suppose integrated research, including translational studies from animals to humans.
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49
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Hatterer E, Shang L, Simonet P, Herren S, Daubeuf B, Teixeira S, Reilly J, Elson G, Nelson R, Gabay C, Sokolove J, McInnes IB, Kosco-Vilbois M, Ferlin W, Monnet E, De Min C. A specific anti-citrullinated protein antibody profile identifies a group of rheumatoid arthritis patients with a toll-like receptor 4-mediated disease. Arthritis Res Ther 2016; 18:224. [PMID: 27716430 PMCID: PMC5053084 DOI: 10.1186/s13075-016-1128-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 09/20/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Increased expression of toll-like receptor 4 (TLR4) and its endogenous ligands, is characteristic of rheumatoid arthritis (RA) synovitis. In this study, we evaluated how these TLR4 ligands may drive pathogenic processes and whether the fine profiling of anti-citrullinated protein antibodies (ACPA) based on their target specificity might provide a simple means to predict therapeutic benefit when neutralizing TLR4 in this disease. METHODS The capacity of RA synovial fluids (RASF) to stimulate cytokine production in monocytes from patients with RA was analyzed by ELISA. The presence of TLR4 activators in RASF was determined by measuring the levels of ACPA, ACPA subtypes with reactivity to specific citrullinated peptides and other TLR4 ligands. Neutralization of TLR4 signaling was investigated using NI-0101, a therapeutic antibody that targets TLR4. RESULTS RASF exhibited a heterogeneous capacity to induce production of proinflammatory cytokines by monocytes isolated from patients with RA. Such cytokine responses were significantly modified by TLR4 blockade achieved using NI-0101. The analysis of the content of RASF and matched sera demonstrated that ACPA fine specificities in patient samples predict cellular response to anti-TLR4 exposure in vitro. CONCLUSION TLR4 represents a possible therapeutic target in RA. Our study demonstrates that TLR4 inhibition in an ex vivo model of RA pathogenesis can significantly modulate cytokine release and does so in specific subgroups of RA patient-derived samples. It also suggests that ACPA fine profiling has the potential to identify RA patients with a predominantly TLR4-driven pathotype that could be used to predict preferential response to TLR4 antagonism.
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Affiliation(s)
- Eric Hatterer
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland.
| | - Limin Shang
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland
| | - Pierre Simonet
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland
| | - Suzanne Herren
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland
| | - Bruno Daubeuf
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland
| | | | - James Reilly
- University School of Medicine, Institute of infection, immunity and inflammation, 120 University Place, Glasgow, UK
| | - Greg Elson
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland.,Present Address: Glenmark Pharmaceuticals SA, 5 chemin de la Combeta, 2300, La-Chaux-de-Fonds, Switzerland
| | - Robert Nelson
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland
| | - Cem Gabay
- Geneva University Hospital, 26 avenue Beau-Sejour, 1211, Geneva, Switzerland
| | - Jeremy Sokolove
- Stanford University, 1000 Welch Rd Suite 203, Palo Alto, CA, USA
| | - Iain B McInnes
- University School of Medicine, Institute of infection, immunity and inflammation, 120 University Place, Glasgow, UK
| | | | - Walter Ferlin
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland
| | - Emmanuel Monnet
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland
| | - Cristina De Min
- , NovImmune SA, 14 chemin des Aulx, 1228, Plan les Ouates, Switzerland
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50
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Kiyeko GW, Hatterer E, Herren S, Di Ceglie I, van Lent PL, Reith W, Kosco-Vilbois M, Ferlin W, Shang L. Spatiotemporal expression of endogenous TLR4 ligands leads to inflammation and bone erosion in mouse collagen-induced arthritis. Eur J Immunol 2016; 46:2629-2638. [PMID: 27510283 DOI: 10.1002/eji.201646453] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/24/2016] [Accepted: 08/08/2016] [Indexed: 12/13/2022]
Abstract
Increased expression of endogenous Toll-like receptor 4 (TLR4) ligands (e.g., Tenascin-C, S100A8/A9, citrullinated fibrinogen (cFb) immune complexes) has been observed in patients with rheumatoid arthritis (RA). However, their roles in RA pathogenesis are not well understood. Here, we investigated the expression kinetics and role of endogenous TLR4 ligands in the murine model of collagen-induced arthritis (CIA). Tenascin-C was upregulated in blood early in CIA, and correlated positively with the clinical score at day 56. Levels of S100A8/A9 increased starting from day 28, peaking at day 42, and correlated positively with joint inflammation. Levels of anti-cFb antibodies increased during the late phase of CIA and correlated positively with both joint inflammation and cartilage damage. Blockade of TLR4 activation at the time of the first TLR4 ligand upregulation prevented clinical and histological signs of arthritis. A TLR4-dependent role was also observed for Tenascin-C and cFb immune complexes in osteoclast differentiation in vitro. Taken together, our data suggests that the pathogenic contribution of TLR4 in promoting joint inflammation and bone erosion during CIA occurs via various TLR4 ligands arising at different stages of disease. The data also suggests that Blockade of TLR4 with monoclonal antibodies is a promising strategy in RA treatment.
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Affiliation(s)
| | | | | | - Irene Di Ceglie
- Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Peter L van Lent
- Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Walter Reith
- Department of Pathology and Immunology, University of Geneva, School of Medicine, Geneva, Switzerland
| | | | | | - Limin Shang
- NovImmune SA, Plan-Les-Ouates, Geneva, Switzerland.
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