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Lin X, Lin T, Wang X, He J, Gao X, Lyu S, Wang Q, Chen J. Sesamol serves as a p53 stabilizer to relieve rheumatoid arthritis progression and inhibits the growth of synovial organoids. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 121:155109. [PMID: 37778247 DOI: 10.1016/j.phymed.2023.155109] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 09/04/2023] [Accepted: 09/19/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is an autoimmune disease known as a leading cause of disability with considerable mortality. Developing alternative drugs and targets for RA treatment is an urgent issue. Sesamol is a phenolic compound isolated from natural food sesame (Sesamum indicum L.) with various biological activities. PURPOSE The current research intended to illuminate the bioactivity and mechanisms of sesamol in RA fibroblast-like synoviocytes (FLS), and aimed to estimate the potential clinical application value of sesamol in RA treatment. METHODS CCK-8, EdU, and flow cytometry assays, as well as transwell tests were applied to observe the effects of sesamol on the abnormal functions of RA-FLS. Moreover, synovial organoids and a collagen-induced arthritis (CIA) mouse model were constructed to further explore the therapeutic capacity of sesamol on RA. Furthermore, RNA sequencing combined with quantitative real-time PCR assay, Western blot as well as co-immunoprecipitation were employed to clarify the mechanism of sesamol in regulating RA progression. RESULTS Sesamol suppressed the proliferation through inhibiting DNA replication, triggering cell cycle arrest and apoptosis of RA-FLS. Besides, sesamol impaired RA-FLS migration and invasion. Interestingly, sesamol inhibited the growth of constructed synovial organoids and alleviated RA symptoms in CIA mice. Moreover, RNA sequencing further implicated p53 signaling as a downstream pathway of sesamol. Furthermore, sesamol was shown to decrease p53 ubiquitination and degradation, thereby activating p53 signaling. Finally, bioinformatics analyses also highlighted the importance of sesamol-regulated networks in the progression of RA. CONCLUSIONS Our investigation demonstrated that sesamol served as a novel p53 stabilizer to attenuate the abnormal functions of RA-FLS via facilitating the activation of p53 signaling. Moreover, our study highlighted that sesamol might be an effective lead compound or candidate drug and p53 could be a promising target for the therapy of RA.
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Affiliation(s)
- Xian Lin
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen 518036, China; Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China; Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen 518036, China
| | - Tengyu Lin
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen 518036, China; Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China; Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen 518036, China
| | - Xiaocheng Wang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen 518036, China; Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China; Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen 518036, China
| | - Jiaxin He
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen 518036, China; Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China; Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen 518036, China
| | - Xu Gao
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen 518036, China; Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China; Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen 518036, China
| | - Shuyan Lyu
- Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen 518036, China
| | - Qingwen Wang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen 518036, China; Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China; Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen 518036, China.
| | - Jian Chen
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen 518036, China; Institute of Immunology and Inflammatory Diseases, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China; Shenzhen Key Laboratory of Inflammatory and Immunology Diseases, Shenzhen 518036, China.
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Thompson CL, Hopkins T, Bevan C, Screen HRC, Wright KT, Knight MM. Human vascularised synovium-on-a-chip: a mechanically stimulated, microfluidic model to investigate synovial inflammation and monocyte recruitment. Biomed Mater 2023; 18:065013. [PMID: 37703884 DOI: 10.1088/1748-605x/acf976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/13/2023] [Indexed: 09/15/2023]
Abstract
Healthy synovium is critical for joint homeostasis. Synovial inflammation (synovitis) is implicated in the onset, progression and symptomatic presentation of arthritic joint diseases such as rheumatoid arthritis and osteoarthritis. Thus, the synovium is a promising target for the development of novel, disease-modifying therapeutics. However, target exploration is hampered by a lack of good pre-clinical models that accurately replicate human physiology and that are developed in a way that allows for widespread uptake. The current study presents a multi-channel, microfluidic, organ-on-a-chip (OOAC) model, comprising a 3D configuration of the human synovium and its associated vasculature, with biomechanical and inflammatory stimulation, built upon a commercially available OOAC platform. Healthy human fibroblast-like synoviocytes (hFLS) were co-cultured with human umbilical vein endothelial cells (HUVECs) with appropriate matrix proteins, separated by a flexible, porous membrane. The model was developed within the Emulate organ-chip platform enabling the application of physiological biomechanical stimulation in the form of fluid shear and cyclic tensile strain. The hFLS exhibited characteristic morphology, cytoskeletal architecture and matrix protein deposition. Synovial inflammation was initiated through the addition of interleukin-1β(IL-1β) into the synovium channel resulting in the increased secretion of inflammatory and catabolic mediators, interleukin-6 (IL-6), prostaglandin E2 (PGE2), matrix metalloproteinase 1 (MMP-1), as well as the synovial fluid constituent protein, hyaluronan. Enhanced expression of the inflammatory marker, intercellular adhesion molecule-1 (ICAM-1), was observed in HUVECs in the vascular channel, accompanied by increased attachment of circulating monocytes. This vascularised human synovium-on-a-chip model recapitulates a number of the functional characteristics of both healthy and inflamed human synovium. Thus, this model offers the first human synovium organ-chip suitable for widespread adoption to understand synovial joint disease mechanisms, permit the identification of novel therapeutic targets and support pre-clinical testing of therapies.
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Affiliation(s)
- Clare L Thompson
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Timothy Hopkins
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
- School of Pharmacy and Bioengineering, Keele University, Staffordshire, United Kingdom
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Shropshire, United Kingdom
| | - Catrin Bevan
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Hazel R C Screen
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Karina T Wright
- School of Pharmacy and Bioengineering, Keele University, Staffordshire, United Kingdom
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Shropshire, United Kingdom
| | - Martin M Knight
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
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Kugler M, Dellinger M, Kartnig F, Müller L, Preglej T, Heinz LX, Simader E, Göschl L, Puchner SE, Weiss S, Shaw LE, Farlik M, Weninger W, Superti-Furga G, Smolen JS, Steiner G, Aletaha D, Kiener HP, Lewis MJ, Pitzalis C, Tosevska A, Karonitsch T, Bonelli M. Cytokine-directed cellular cross-talk imprints synovial pathotypes in rheumatoid arthritis. Ann Rheum Dis 2023; 82:1142-1152. [PMID: 37344156 DOI: 10.1136/ard-2022-223396] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 05/11/2023] [Indexed: 06/23/2023]
Abstract
INTRODUCTION Structural reorganisation of the synovium with expansion of fibroblast-like synoviocytes (FLS) and influx of immune cells is a hallmark of rheumatoid arthritis (RA). Activated FLS are increasingly recognised as a critical component driving synovial tissue remodelling by interacting with immune cells resulting in distinct synovial pathotypes of RA. METHODS Automated high-content fluorescence microscopy of co-cultured cytokine-activated FLS and autologous peripheral CD4+ T cells from patients with RA was established to quantify cell-cell interactions. Phenotypic profiling of cytokine-treated FLS and co-cultured T cells was done by flow cytometry and RNA-Seq, which were integrated with publicly available transcriptomic data from patients with different histological synovial pathotypes. Computational prediction and knock-down experiments were performed in FLS to identify adhesion molecules for cell-cell interaction. RESULTS Cytokine stimulation, especially with TNF-α, led to enhanced FLS-T cell interaction resulting in cell-cell contact-dependent activation, proliferation and differentiation of T cells. Signatures of cytokine-activated FLS were significantly enriched in RA synovial tissues defined as lymphoid-rich or leucocyte-rich pathotypes, with the most prominent effects for TNF-α. FLS cytokine signatures correlated with the number of infiltrating CD4+ T cells in synovial tissue of patients with RA. Ligand-receptor pair interaction analysis identified ICAM1 on FLS as an important mediator in TNF-mediated FLS-T cell interaction. Both, ICAM1 and its receptors were overexpressed in TNF-treated FLS and co-cultured T cells. Knock-down of ICAM1 in FLS resulted in reduced TNF-mediated FLS-T cell interaction. CONCLUSION Our study highlights the role of cytokine-activated FLS in orchestrating inflammation-associated synovial pathotypes providing novel insights into disease mechanisms of RA.
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Affiliation(s)
- Maximilian Kugler
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Mirjam Dellinger
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna, Austria
| | - Felix Kartnig
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Lena Müller
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
- Core Facility Flow Cytometry, Medical University of Vienna, Vienna, Austria
| | - Teresa Preglej
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Leonhard X Heinz
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Elisabeth Simader
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Lisa Göschl
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Stephan E Puchner
- Department of Orthopaedic Surgery, Medical University of Vienna, Vienna, Austria
| | - Sebastian Weiss
- Department of Pathology, Medical University of Vienna, Vienna, Austria
| | - Lisa E Shaw
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Matthias Farlik
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Weninger
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Josef S Smolen
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Guenter Steiner
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna, Austria
| | - Daniel Aletaha
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Hans P Kiener
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Myles J Lewis
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University and The London School of Medicine and Dentistry, London, UK
- Centre for Translational Bioinformatics, William Harvey Research Institute, Queen Mary University and The London School of Medicine and Dentistry, London, UK
| | - Costantino Pitzalis
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University and The London School of Medicine and Dentistry, London, UK
- Department of Biomedical Sciences, Humanitas University & IRCCS Humanitas Research Hospital, Milan, Italy
| | - Anela Tosevska
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Thomas Karonitsch
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Michael Bonelli
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna, Austria
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Ospelt C. Site of invasion revisited: epigenetic drivers of joint destruction in RA. Ann Rheum Dis 2022; 82:734-739. [PMID: 36585124 DOI: 10.1136/ard-2022-222554] [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] [Received: 10/08/2022] [Accepted: 12/13/2022] [Indexed: 12/31/2022]
Abstract
New analytical methods and the increasing availability of synovial biopsies have recently provided unprecedented insights into synovial activation in general and synovial fibroblast (SF) biology in particular. In the course of this development, SFs have become one of the most rapidly evolving and exciting fields of rheumatoid arthritis (RA) research. While their active role in the invasion of RA synovium into cartilage has long been studied, recent studies have brought new aspects of their heterogeneity and propagation in RA. This review integrates old and new evidence to give an overview picture of the processes active at the sites of invasive synovial tissue growth in RA.
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Affiliation(s)
- Caroline Ospelt
- Department of Rheumatology, Center of Experimental Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
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5
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YAP promotes cell-autonomous immune responses to tackle intracellular Staphylococcus aureus in vitro. Nat Commun 2022; 13:6995. [PMID: 36384856 PMCID: PMC9669043 DOI: 10.1038/s41467-022-34432-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 10/24/2022] [Indexed: 11/17/2022] Open
Abstract
Transcriptional cofactors YAP/TAZ have recently been found to support autophagy and inflammation, which are part of cell-autonomous immunity and are critical in antibacterial defense. Here, we studied the role of YAP against Staphylococcus aureus using CRISPR/Cas9-mutated HEK293 cells and a primary cell-based organoid model. We found that S. aureus infection increases YAP transcriptional activity, which is required to reduce intracellular S. aureus replication. A 770-gene targeted transcriptomic analysis revealed that YAP upregulates genes involved in autophagy/lysosome and inflammation pathways in both infected and uninfected conditions. The YAP-TEAD transcriptional activity promotes autophagic flux and lysosomal acidification, which are then important for defense against intracellular S. aureus. Furthermore, the staphylococcal toxin C3 exoenzyme EDIN-B was found effective in preventing YAP-mediated cell-autonomous immune response. This study provides key insights on the anti-S. aureus activity of YAP, which could be conserved for defense against other intracellular bacteria.
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Mahmoud DE, Kaabachi W, Sassi N, Tarhouni L, Rekik S, Jemmali S, Sehli H, Kallel-Sellami M, Cheour E, Laadhar L. The synovial fluid fibroblast-like synoviocyte: A long-neglected piece in the puzzle of rheumatoid arthritis pathogenesis. Front Immunol 2022; 13:942417. [PMID: 35990693 PMCID: PMC9388825 DOI: 10.3389/fimmu.2022.942417] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/13/2022] [Indexed: 12/14/2022] Open
Abstract
Rheumatoid arthritis (RA) is a systemic autoimmune disease during which fibroblast-like synoviocytes (FLS) contribute to both joint inflammation and destruction. FLS represent the core component of the synovial membrane. Following inflammation of this membrane, an effusion of cell-rich synovial fluid (SF) fills the joint cavity. Unlikely, SF has been shown to contain fibroblasts with some shared phenotypic traits with the synovial membrane FLS. These cells are called SF-FLS and their origin is still unclear. They are either brought into the synovium via migration through blood vessels, or they could originate within the synovium and exist in projections of the synovial membrane. SF-FLS function and phenotype are poorly documented compared to recently well-characterized synovial membrane FLS subsets. Furthermore, no study has yet reported a SF-FLS single-cell profiling analysis. This review will discuss the origin and cellular characteristics of SF-FLS in patients with RA. In addition, recent advances on the involvement of SF-FLS in the pathogenesis of RA will be summarized. Current knowledge on possible relationships between SF-FLS and other types of fibroblasts, including synovial membrane FLS, circulating fibrocytes, and pre- inflammatory mesenchymal (PRIME) cells will also be addressed. Finally, recent therapeutic strategies employed to specifically target SF-FLS in RA will be discussed.
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Affiliation(s)
- Dorra Elhaj Mahmoud
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
- Unité de Recherche Infections Respiratoires Fongiques (IRF), Structure Fédérative de Recherche “Interactions Cellulaires et Applications Thérapeutiques” (SFR ICAT), Université d’Angers, Angers, France
| | - Wajih Kaabachi
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Nadia Sassi
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Lamjed Tarhouni
- Department of Hand and Reconstructive Surgery, Kassab Institute of Traumatic and Orthopedic Surgery, Tunis, Tunisia
| | - Sonia Rekik
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Samia Jemmali
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Hela Sehli
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Maryam Kallel-Sellami
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Elhem Cheour
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
| | - Lilia Laadhar
- Immuno-Rheumatology Research Laboratory, Rheumatology Department, La Rabta Hospital, University of Tunis-El Manar, Tunis, Tunisia
- *Correspondence: Lilia Laadhar,
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Kahraman E, Ribeiro R, Lamghari M, Neto E. Cutting-Edge Technologies for Inflamed Joints on Chip: How Close Are We? Front Immunol 2022; 13:802440. [PMID: 35359987 PMCID: PMC8960235 DOI: 10.3389/fimmu.2022.802440] [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: 10/26/2021] [Accepted: 02/18/2022] [Indexed: 11/17/2022] Open
Abstract
Osteoarthritis (OA) is a painful and disabling musculoskeletal disorder, with a large impact on the global population, resulting in several limitations on daily activities. In OA, inflammation is frequent and mainly controlled through inflammatory cytokines released by immune cells. These outbalanced inflammatory cytokines cause cartilage extracellular matrix (ECM) degradation and possible growth of neuronal fibers into subchondral bone triggering pain. Even though pain is the major symptom of musculoskeletal diseases, there are still no effective treatments to counteract it and the mechanisms behind these pathologies are not fully understood. Thus, there is an urgent need to establish reliable models for assessing the molecular mechanisms and consequently new therapeutic targets. Models have been established to support this research field by providing reliable tools to replicate the joint tissue in vitro. Studies firstly started with simple 2D culture setups, followed by 3D culture focusing mainly on cell-cell interactions to mimic healthy and inflamed cartilage. Cellular approaches were improved by scaffold-based strategies to enhance cell-matrix interactions as well as contribute to developing mechanically more stable in vitro models. The progression of the cartilage tissue engineering would then profit from the integration of 3D bioprinting technologies as these provide 3D constructs with versatile structural arrangements of the 3D constructs. The upgrade of the available tools with dynamic conditions was then achieved using bioreactors and fluid systems. Finally, the organ-on-a-chip encloses all the state of the art on cartilage tissue engineering by incorporation of different microenvironments, cells and stimuli and pave the way to potentially simulate crucial biological, chemical, and mechanical features of arthritic joint. In this review, we describe the several available tools ranging from simple cartilage pellets to complex organ-on-a-chip platforms, including 3D tissue-engineered constructs and bioprinting tools. Moreover, we provide a fruitful discussion on the possible upgrades to enhance the in vitro systems making them more robust regarding the physiological and pathological modeling of the joint tissue/OA.
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Affiliation(s)
- Emine Kahraman
- Instituto de Engenharia Biomédica (INEB), Universidade do Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal.,Faculdade de Engenharia da Universidade do Porto (FEUP), Rua Dr. Roberto Frias, Porto, Portugal
| | - Ricardo Ribeiro
- Instituto de Engenharia Biomédica (INEB), Universidade do Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Meriem Lamghari
- Instituto de Engenharia Biomédica (INEB), Universidade do Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Estrela Neto
- Instituto de Engenharia Biomédica (INEB), Universidade do Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
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8
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Caire R, Audoux E, Courbon G, Michaud E, Petit C, Dalix E, Chafchafi M, Thomas M, Vanden-Bossche A, Navarro L, Linossier MT, Peyroche S, Guignandon A, Vico L, Paul S, Marotte H. YAP/TAZ: Key Players for Rheumatoid Arthritis Severity by Driving Fibroblast Like Synoviocytes Phenotype and Fibro-Inflammatory Response. Front Immunol 2021; 12:791907. [PMID: 34956224 PMCID: PMC8695934 DOI: 10.3389/fimmu.2021.791907] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 11/18/2021] [Indexed: 12/29/2022] Open
Abstract
Objective The role of YAP/TAZ, two transcriptional co-activators involved in several cancers, was investigated in rheumatoid arthritis (RA). Methods Fibroblast like synoviocytes (FLS) from patients with RA or osteoarthritis were cultured in 2D or into 3D synovial organoids. Arthritis rat model (n=28) and colitis mouse model (n=21) were used. YAP/TAZ transcriptional activity was inhibited by verteporfin (VP). Multiple techniques were used to assess gene and/or protein expression and/or localization, cell phenotype (invasion, proliferation, apoptosis), bone erosion, and synovial stiffness. Results YAP/TAZ were transcriptionally active in arthritis (19-fold increase for CTGF expression, a YAP target gene, in RA vs. OA organoids; p<0.05). Stiff support of culture or pro-inflammatory cytokines further enhanced YAP/TAZ transcriptional activity in RA FLS. Inhibiting YAP/TAZ transcriptional activity with VP restored a common phenotype in RA FLS with a decrease in apoptosis resistance, proliferation, invasion, and inflammatory response. Consequently, VP blunted hyperplasic lining layer formation in RA synovial organoids. In vivo, VP treatment strongly reduced arthritis severity (mean arthritic index at 3.1 in arthritic group vs. 2.0 in VP treated group; p<0.01) by restoring synovial homeostasis and decreasing systemic inflammation. YAP/TAZ transcriptional activity also enhanced synovial membrane stiffening in vivo, thus creating a vicious loop with the maintenance of YAP/TAZ activation over time in FLS. YAP/TAZ inhibition was also effective in another inflammatory model of mouse colitis. Conclusion Our work reveals that YAP/TAZ were critical factors during arthritis. Thus, their transcriptional inhibition could be relevant to treat inflammatory related diseases.
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Affiliation(s)
- Robin Caire
- INSERM, U1059-SAINBIOSE, Université de Lyon, Saint-Etienne, France
| | - Estelle Audoux
- CIRI (Centre International de Recherche en Infectiologie), Equipe GIMAP (Team 15), INSERM, U1111, CNRS, ENS, UCBL1, Université Jean Monnet, Université de Lyon, Saint-Etienne, France
| | | | - Eva Michaud
- CIRI (Centre International de Recherche en Infectiologie), Equipe GIMAP (Team 15), INSERM, U1111, CNRS, ENS, UCBL1, Université Jean Monnet, Université de Lyon, Saint-Etienne, France
| | - Claudie Petit
- INSERM, U1059-SAINBIOSE, Mines Saint-Etienne, Université de Lyon, Saint-Etienne, France
| | - Elisa Dalix
- INSERM, U1059-SAINBIOSE, Université de Lyon, Saint-Etienne, France
| | - Marwa Chafchafi
- INSERM, U1059-SAINBIOSE, Université de Lyon, Saint-Etienne, France
| | - Mireille Thomas
- INSERM, U1059-SAINBIOSE, Université de Lyon, Saint-Etienne, France
| | | | - Laurent Navarro
- INSERM, U1059-SAINBIOSE, Mines Saint-Etienne, Université de Lyon, Saint-Etienne, France
| | | | - Sylvie Peyroche
- INSERM, U1059-SAINBIOSE, Université de Lyon, Saint-Etienne, France
| | - Alain Guignandon
- INSERM, U1059-SAINBIOSE, Université de Lyon, Saint-Etienne, France
| | - Laurence Vico
- INSERM, U1059-SAINBIOSE, Université de Lyon, Saint-Etienne, France
| | - Stephane Paul
- CIRI (Centre International de Recherche en Infectiologie), Equipe GIMAP (Team 15), INSERM, U1111, CNRS, ENS, UCBL1, Université Jean Monnet, Université de Lyon, Saint-Etienne, France.,CIC INSERM, 1408, Université de Lyon, Saint-Etienne, France
| | - Hubert Marotte
- INSERM, U1059-SAINBIOSE, Université de Lyon, Saint-Etienne, France.,CIC INSERM, 1408, Université de Lyon, Saint-Etienne, France.,Department of Rheumatology, Hôpital Nord, University Hospital Saint-Etienne, Saint-Etienne, France
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9
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José Alcaraz M. New potential therapeutic approaches targeting synovial fibroblasts in rheumatoid arthritis. Biochem Pharmacol 2021; 194:114815. [PMID: 34715065 DOI: 10.1016/j.bcp.2021.114815] [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] [Received: 08/31/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/18/2022]
Abstract
Synovial cells play a key role in joint destruction during chronic inflammation. In particular, activated synovial fibroblasts (SFs) undergo intrinsic alterations leading to an aggressive phenotype mediating cartilage destruction and bone erosion in rheumatoid arthritis (RA). Recent research has revealed a number of targets to control arthritogenic changes in SFs. Therefore, identification of SF phenotypes, control of epigenetic changes, modulation of cellular functions, or regulation of the activity of cation channels and different signaling pathways has been investigated. Although many of these approaches have shown efficacy in vitro and in animal models of RA, further research is needed to select the most relevant targets for drug development. This review is focused on the role of SFs as a potential strategy to discover novel therapeutic targets in RA aimed at preserving joint architecture and function.
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Affiliation(s)
- María José Alcaraz
- Department of Pharmacology, University of Valencia, and Interuniversity Research Institute for Molecular Recognition and Technological Development (IDM), Polytechnic University of Valencia, University of Valencia, Av. Vicent A. Estellés s/n, 46100 Burjasot, Valencia, Spain.
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10
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Rothbauer M, Byrne RA, Schobesberger S, Olmos Calvo I, Fischer A, Reihs EI, Spitz S, Bachmann B, Sevelda F, Holinka J, Holnthoner W, Redl H, Toegel S, Windhager R, Kiener HP, Ertl P. Establishment of a human three-dimensional chip-based chondro-synovial coculture joint model for reciprocal cross talk studies in arthritis research. LAB ON A CHIP 2021; 21:4128-4143. [PMID: 34505620 DOI: 10.1039/d1lc00130b] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Rheumatoid arthritis is characterised by a progressive, intermittent inflammation at the synovial membrane, which ultimately leads to the destruction of the synovial joint. The synovial membrane as the joint capsule's inner layer is lined with fibroblast-like synoviocytes that are the key player supporting persistent arthritis leading to bone erosion and cartilage destruction. While microfluidic models that model molecular aspects of bone erosion between bone-derived cells and synoviocytes have been established, RA's synovial-chondral axis has not yet been realised using a microfluidic 3D model based on human patient in vitro cultures. Consequently, we established a chip-based three-dimensional tissue coculture model that simulates the reciprocal cross talk between individual synovial and chondral organoids. When co-cultivated with synovial organoids, we could demonstrate that chondral organoids induce a higher degree of cartilage physiology and architecture and show differential cytokine response compared to their respective monocultures highlighting the importance of reciprocal tissue-level cross talk in the modelling of arthritic diseases.
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Affiliation(s)
- Mario Rothbauer
- Karl Chiari Lab for Orthopaedic Biology (KCLOB), Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
| | - Ruth A Byrne
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
- Division of Rheumatology, Department of Medicine III, Medical University Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Silvia Schobesberger
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
| | - Isabel Olmos Calvo
- Division of Rheumatology, Department of Medicine III, Medical University Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Anita Fischer
- Karl Chiari Lab for Orthopaedic Biology (KCLOB), Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
- Division of Rheumatology, Department of Medicine III, Medical University Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
- Ludwig Boltzmann Institute of Arthritis and Rehabilitation, Vienna, Austria
| | - Eva I Reihs
- Karl Chiari Lab for Orthopaedic Biology (KCLOB), Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
| | - Sarah Spitz
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
| | - Barbara Bachmann
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
- AUVA Research Centre, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Florian Sevelda
- Division of Orthopedics, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Johannes Holinka
- Division of Orthopedics, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Wolfgang Holnthoner
- AUVA Research Centre, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Heinz Redl
- AUVA Research Centre, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Stefan Toegel
- Karl Chiari Lab for Orthopaedic Biology (KCLOB), Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
- Ludwig Boltzmann Institute of Arthritis and Rehabilitation, Vienna, Austria
| | - Reinhard Windhager
- Karl Chiari Lab for Orthopaedic Biology (KCLOB), Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
- Division of Orthopedics, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Hans P Kiener
- Division of Rheumatology, Department of Medicine III, Medical University Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Peter Ertl
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
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11
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Abstract
Fibroblasts are important cells for the support of homeostatic tissue function. In inflammatory diseases such as rheumatoid arthritis and inflammatory bowel disease, fibroblasts take on different roles (a) as inflammatory cells themselves and (b) in recruiting leukocytes, driving angiogenesis, and enabling chronic inflammation in tissues. Recent advances in single-cell profiling techniques have transformed the ability to examine fibroblast states and populations in inflamed tissues, providing evidence of previously underappreciated heterogeneity and disease-associated fibroblast populations. These studies challenge the preconceived notion that fibroblasts are homogeneous and provide new insights into the role of fibroblasts in inflammatory pathology. In addition, new molecular insights into the mechanisms of fibroblast activation reveal powerful cell-intrinsic amplification loops that synergize with primary fibroblast stimuli to result in striking responses. In this Review, we focus on recent developments in our understanding of fibroblast heterogeneity and fibroblast pathology across tissues and diseases in rheumatoid arthritis and inflammatory bowel diseases. We highlight new approaches to, and applications of, single-cell profiling techniques and what they teach us about fibroblast biology. Finally, we address how these insights could lead to the development of novel therapeutic approaches to targeting fibroblasts in disease.
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12
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Ren X, Geng M, Xu K, Lu C, Cheng Y, Kong L, Cai Y, Hou W, Lu Y, Aihaiti Y, Xu P. Quantitative Proteomic Analysis of Synovial Tissue Reveals That Upregulated OLFM4 Aggravates Inflammation in Rheumatoid Arthritis. J Proteome Res 2021; 20:4746-4757. [PMID: 34496567 DOI: 10.1021/acs.jproteome.1c00399] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tandem mass tag (TMT)-coupled liquid chromatography coupled with tandem mass spectrometry is a powerful method to investigate synovial tissue protein profiles in patients with rheumatoid arthritis (RA) and osteoarthritis (OA). Protein was isolated from synovial tissue samples of 22 patients and labeled with a TMT kit. Over 500 proteins were identified as the differential expression protein on comparing RA and OA synovial tissue, including 239 upregulated and 271 downregulated proteins. Data are available via ProteomeXchange with identifier PXD027703. Gene ontology and Kyoto Encyclopedia of Genes and Genomes analysis showed that the majority participated in the developmental processes and protein processing in the endoplasmic reticulum. Olfactomedin 4 (OLFM4), a secreted glycoprotein, in joint inflammation of RA was explored. OLFM4 was upregulated in RA synovial tissue samples. In fibroblast-like synoviocytes (FLS), inflammation cytokines, TNF-α, interleukin (IL)-1β, and LPS can upregulate OLFM4. After OLFM4 knockdown under TNF-α stimulation, RA FLS proliferation was inhibited and the expression of CXCL9, CXCL11, and MMP-1 was decreased. Overall, the RA synovial tissue protein expression profile by proteomic analysis shows some unique targets in RA pathophysiology, and OLFM4 in FLS plays an important role in RA joint inflammation. OLFM4 can be a promising therapeutic target in RA synovial tissue.
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Affiliation(s)
- Xiaoyu Ren
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Manman Geng
- Precision Medicine Institute, The Second Affiliated Hospital of Xian Jiaotong University, Xi'an 710061, P. R. China.,National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital, Xi'an Jiaotong University, No.157, Xiwu Road, Xi'an 710004, Shaanxi, P. R. China
| | - Ke Xu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Chao Lu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Yuanyuan Cheng
- Precision Medicine Institute, The Second Affiliated Hospital of Xian Jiaotong University, Xi'an 710061, P. R. China.,National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital, Xi'an Jiaotong University, No.157, Xiwu Road, Xi'an 710004, Shaanxi, P. R. China
| | - Linbo Kong
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Yongsong Cai
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Weikun Hou
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Yufeng Lu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Yirixiati Aihaiti
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Peng Xu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
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13
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Kemble S, Croft AP. Critical Role of Synovial Tissue-Resident Macrophage and Fibroblast Subsets in the Persistence of Joint Inflammation. Front Immunol 2021; 12:715894. [PMID: 34539648 PMCID: PMC8446662 DOI: 10.3389/fimmu.2021.715894] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 08/17/2021] [Indexed: 12/11/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic prototypic immune-mediated inflammatory disease which is characterized by persistent synovial inflammation, leading to progressive joint destruction. Whilst the introduction of targeted biological drugs has led to a step change in the management of RA, 30-40% of patients do not respond adequately to these treatments, regardless of the mechanism of action of the drug used (ceiling of therapeutic response). In addition, many patients who acheive clinical remission, quickly relapse following the withdrawal of treatment. These observations suggest the existence of additional pathways of disease persistence that remain to be identified and targeted therapeutically. A major barrier for the identification of therapeutic targets and successful clinical translation is the limited understanding of the cellular mechanisms that operate within the synovial microenvironment to sustain joint inflammation. Recent insights into the heterogeneity of tissue resident synovial cells, including macropahges and fibroblasts has revealed distinct subsets of these cells that differentially regulate specific aspects of inflammatory joint pathology, paving the way for targeted interventions to specifically modulate the behaviour of these cells. In this review, we will discuss the phenotypic and functional heterogeneity of tissue resident synovial cells and how this cellular diversity contributes to joint inflammation. We discuss how critical interactions between tissue resident cell types regulate the disease state by establishing critical cellular checkpoints within the synovium designed to suppress inflammation and restore joint homeostasis. We propose that failure of these cellular checkpoints leads to the emergence of imprinted pathogenic fibroblast cell states that drive the persistence of joint inflammation. Finally, we discuss therapeutic strategies that could be employed to specifically target pathogenic subsets of fibroblasts in RA.
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Affiliation(s)
| | - Adam P. Croft
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), University of Birmingham, Queen Elizabeth Hospital, Birmingham, United Kingdom
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14
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Cheng L, Wang Y, Wu R, Ding T, Xue H, Gao C, Li X, Wang C. New Insights From Single-Cell Sequencing Data: Synovial Fibroblasts and Synovial Macrophages in Rheumatoid Arthritis. Front Immunol 2021; 12:709178. [PMID: 34349767 PMCID: PMC8326910 DOI: 10.3389/fimmu.2021.709178] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/01/2021] [Indexed: 12/16/2022] Open
Abstract
Single-cell RNA sequencing (scRNA-seq) technology can analyze the transcriptome expression level of cells with high-throughput from the single cell level, fully show the heterogeneity of cells, and provide a new way for the study of multicellular biological heterogeneity. Synovitis is the pathological basis of rheumatoid arthritis (RA). Synovial fibroblasts (SFs) and synovial macrophages are the core target cells of RA, which results in the destruction of articular cartilage, as well as bone. Recent scRNA-seq technology has made breakthroughs in the differentiation and development of two types of synovial cells, identification of subsets, functional analysis, and new therapeutic targets, which will bring remarkable changes in RA treatment.
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Affiliation(s)
- Liyun Cheng
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yanyan Wang
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Ruihe Wu
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Tingting Ding
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Hongwei Xue
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Chong Gao
- Pathology, Joint Program in Transfusion Medicine, Brigham and Women's Hospital/Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Xiaofeng Li
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Caihong Wang
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
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15
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Marsh LJ, Kemble S, Reis Nisa P, Singh R, Croft AP. Fibroblast pathology in inflammatory joint disease. Immunol Rev 2021; 302:163-183. [PMID: 34096076 DOI: 10.1111/imr.12986] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/08/2021] [Accepted: 05/10/2021] [Indexed: 12/11/2022]
Abstract
Rheumatoid arthritis is an immune-mediated inflammatory disease in which fibroblasts contribute to both joint damage and inflammation. Fibroblasts are a major cell constituent of the lining of the joint cavity called the synovial membrane. Under resting conditions, fibroblasts have an important role in maintaining joint homeostasis, producing extracellular matrix and joint lubricants. In contrast, during joint inflammation, fibroblasts contribute to disease pathology by producing pathogenic levels of inflammatory mediators that drive the recruitment and retention of inflammatory cells within the joint. Recent advances in single-cell profiling techniques have transformed our ability to examine fibroblast biology, leading to the identification of specific fibroblast subsets, defining a previously underappreciated heterogeneity of disease-associated fibroblast populations. These studies are challenging the previously held dogma that fibroblasts are homogeneous and are providing unique insights into their role in inflammatory joint pathology. In this review, we discuss the recent advances in our understanding of how fibroblast heterogeneity contributes to joint pathology in rheumatoid arthritis. Finally, we address how these insights could lead to the development of novel therapies that directly target selective populations of fibroblasts in the future.
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Affiliation(s)
- Lucy-Jayne Marsh
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK
| | - Samuel Kemble
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK
| | - Patricia Reis Nisa
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK
| | - Ruchir Singh
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK
| | - Adam P Croft
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK
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16
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Lasp1 regulates adherens junction dynamics and fibroblast transformation in destructive arthritis. Nat Commun 2021; 12:3624. [PMID: 34131132 PMCID: PMC8206096 DOI: 10.1038/s41467-021-23706-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 05/11/2021] [Indexed: 02/05/2023] Open
Abstract
The LIM and SH3 domain protein 1 (Lasp1) was originally cloned from metastatic breast cancer and characterised as an adaptor molecule associated with tumourigenesis and cancer cell invasion. However, the regulation of Lasp1 and its function in the aggressive transformation of cells is unclear. Here we use integrative epigenomic profiling of invasive fibroblast-like synoviocytes (FLS) from patients with rheumatoid arthritis (RA) and from mouse models of the disease, to identify Lasp1 as an epigenomically co-modified region in chronic inflammatory arthritis and a functionally important binding partner of the Cadherin-11/β-Catenin complex in zipper-like cell-to-cell contacts. In vitro, loss or blocking of Lasp1 alters pathological tissue formation, migratory behaviour and platelet-derived growth factor response of arthritic FLS. In arthritic human TNF transgenic mice, deletion of Lasp1 reduces arthritic joint destruction. Therefore, we show a function of Lasp1 in cellular junction formation and inflammatory tissue remodelling and identify Lasp1 as a potential target for treating inflammatory joint disorders associated with aggressive cellular transformation.
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17
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Zou M, Jiang D, Wu T, Zhang X, Zhao Y, Wu D, Sun W, Cui J, Moreland L, Li G. Post-GWAS functional studies reveal an RA-associated CD40-induced NF-kB signal transduction and transcriptional regulation network targeted by class II HDAC inhibitors. Hum Mol Genet 2021; 30:823-835. [PMID: 33517445 PMCID: PMC8161515 DOI: 10.1093/hmg/ddab032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/08/2021] [Accepted: 01/20/2021] [Indexed: 01/17/2023] Open
Abstract
Currently, it remains difficult to identify which single nucleotide polymorphisms (SNPs) identified by genome-wide association studies (GWAS) are functional and how various functional SNPs (fSNPs) interact and contribute to disease susceptibility. GWAS have identified a CD40 locus that is associated with rheumatoid arthritis (RA). We previously used two techniques developed in our laboratory, single nucleotide polymorphism-next-generation sequencing (SNP-seq) and flanking restriction enhanced DNA pulldown-mass spectrometry (FREP-MS), to determine that the RA risk gene RBPJ regulates CD40 expression via a fSNP at the RA-associated CD40 locus. In the present work, by applying the same approach, we report the identification of six proteins that regulate RBPJ expression via binding to two fSNPs on the RA-associated RBPJ locus. Using these findings, together with the published data, we constructed an RA-associated signal transduction and transcriptional regulation network (STTRN) that functionally connects multiple RA-associated risk genes via transcriptional regulation networks (TRNs) linked by CD40-induced nuclear factor kappa B (NF-kB) signaling. Remarkably, this STTRN provides insight into the potential mechanism of action for the histone deacetylase inhibitor givinostat, an approved therapy for systemic juvenile idiopathic arthritis. Thus, the generation of disease-associated STTRNs based on post-GWAS functional studies is demonstrated as a novel and effective approach to apply GWAS for mechanistic studies and target identification.
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Affiliation(s)
- Meijuan Zou
- Aging Institute, University of Pittsburgh, Pittsburgh, PA 15219, USA
- Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Danli Jiang
- Aging Institute, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Ting Wu
- Aging Institute, University of Pittsburgh, Pittsburgh, PA 15219, USA
- Department of Medicine, Xiangya School of Medicine, Central South University, Changsha 410083, China
| | - Xiaoyu Zhang
- Aging Institute, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Yihan Zhao
- Aging Institute, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Di Wu
- Department of Periodontology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Wei Sun
- Department of Medicine, Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Jing Cui
- Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Larry Moreland
- Department of Medicine, Division of Rheumatology, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - Gang Li
- Aging Institute, University of Pittsburgh, Pittsburgh, PA 15219, USA
- Department of Medicine, Division of Cardiology, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
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18
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Fuehrer J, Pichler KM, Fischer A, Giurea A, Weinmann D, Altmann F, Windhager R, Gabius H, Toegel S. N-Glycan profiling of chondrocytes and fibroblast-like synoviocytes: Towards functional glycomics in osteoarthritis. Proteomics Clin Appl 2021; 15:e2000057. [PMID: 33580901 PMCID: PMC8548877 DOI: 10.1002/prca.202000057] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 12/15/2020] [Accepted: 12/18/2020] [Indexed: 12/30/2022]
Abstract
PURPOSE N-Glycan profiling provides an indicator of the cellular potential for functional pairing with tissue lectins. Following the discovery of galectin expression by chondrocytes as a factor in osteoarthritis pathobiology, mapping of N-glycans upon their phenotypic dedifferentiation in culture and in fibroblast-like synoviocytes is a step to better understand glycobiological contributions to disease progression. EXPERIMENTAL DESIGN The profiles of cellular N-glycans of human osteoarthritic chondrocytes and fibroblast-like synoviocytes were characterized by mass spectrometry. RT-qPCR experiments determined mRNA levels of 16 glycosyltransferases. Responsiveness of cells to galectins was quantified by measuring the mRNA level for interleukin-1β. RESULTS The shift of chondrocytes to a fibroblastic phenotype (dedifferentiation) is associated with changes in N-glycosylation. The N-glycan profile of chondrocytes at passage 4 reflects characteristics of synoviocytes. Galectins-1 and -3 enhance expression of interleukin-1β mRNA in both cell types, most pronounced in primary culture. Presence of interleukin-1β leads to changes in sialylation in synoviocytes that favor galectin binding. CONCLUSIONS AND CLINICAL RELEVANCE N-Glycosylation reflects phenotypic changes of osteoarthritic cells in vitro. Like chondrocytes, fibroblast-like synoviocytes express N-glycans that are suited to bind galectins, and these proteins serve as inducers of pro-inflammatory markers in these cells. Synoviocytes can thus contribute to disease progression in osteoarthritis in situ.
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Affiliation(s)
- Johannes Fuehrer
- Department of ChemistryUniversity of Natural Resources and Life SciencesViennaAustria
| | - Katharina M. Pichler
- Karl Chiari Lab for Orthopaedic BiologyDepartment of Orthopedics and Trauma SurgeryMedical University of ViennaViennaAustria
| | - Anita Fischer
- Karl Chiari Lab for Orthopaedic BiologyDepartment of Orthopedics and Trauma SurgeryMedical University of ViennaViennaAustria
- Ludwig Boltzmann Institute for Arthritis and RehabilitationViennaAustria
| | - Alexander Giurea
- Department of Orthopedics and Trauma SurgeryDivision of OrthopedicsMedical University of ViennaViennaAustria
| | - Daniela Weinmann
- Karl Chiari Lab for Orthopaedic BiologyDepartment of Orthopedics and Trauma SurgeryMedical University of ViennaViennaAustria
| | - Friedrich Altmann
- Department of ChemistryUniversity of Natural Resources and Life SciencesViennaAustria
| | - Reinhard Windhager
- Karl Chiari Lab for Orthopaedic BiologyDepartment of Orthopedics and Trauma SurgeryMedical University of ViennaViennaAustria
- Department of Orthopedics and Trauma SurgeryDivision of OrthopedicsMedical University of ViennaViennaAustria
| | - Hans‐Joachim Gabius
- Faculty of Veterinary MedicineInstitute of Physiological ChemistryLudwig‐Maximilians University MunichMunichGermany
| | - Stefan Toegel
- Karl Chiari Lab for Orthopaedic BiologyDepartment of Orthopedics and Trauma SurgeryMedical University of ViennaViennaAustria
- Ludwig Boltzmann Institute for Arthritis and RehabilitationViennaAustria
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Transcriptional Regulation of CD40 Expression by 4 Ribosomal Proteins via a Functional SNP on a Disease-Associated CD40 Locus. Genes (Basel) 2020; 11:genes11121526. [PMID: 33371207 PMCID: PMC7767238 DOI: 10.3390/genes11121526] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 01/02/2023] Open
Abstract
Previously, using FREP-MS, we identified a protein complex including eight proteins that specifically bind to the functional SNP (fSNP) rs6032664 at a CD40 locus associated with autoimmune diseases. Among these eight proteins, four are ribosomal proteins RPL26, RPL4, RPL8, and RPS9 that normally make up the ribosomal subunits involved in the cellular process of protein translation. So far, no publication has shown these ribosomal proteins function as transcriptional regulators. In this work, we demonstrate that four ribosomal proteins: RPL26, RPL4, RPL8, and RPS9 are bona fide CD40 transcriptional regulators via binding to rs6032664. In addition, we show that suppression of CD40 expression by RPL26 RNAi knockdown inactivates NF-κB p65 by dephosphorylation via NF-κB signaling pathway in fibroblast-like synoviocytes (FLS), which further reduces the transcription of disease-associated risk genes such as STAT4, CD86, TRAF1 and ICAM1 as the direct targets of NF-κB p65. Based on these findings, a disease-associated risk gene transcriptional regulation network (TRN) is generated, in which decreased expression of, at least, RPL26 results in the downregulation of risk genes: STAT4, CD86, TRAF1 and ICAM1, as well as the two proinflammatory cytokines: IL1β and IL6 via CD40-induced NF-κB signaling. We believe that further characterization of this disease-associated TRN in the CD40-induced NF-κB signaling by identifying both the upstream and downstream regulators will potentially enable us to identify the best targets for drug development.
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20
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Geng M, Xu K, Meng L, Xu J, Jiang C, Guo Y, Ren X, Li X, Peng Y, Wang S, Huang F, Zhang J, Wang X, Zhu W, Lu S. Up-regulated DERL3 in fibroblast-like synoviocytes exacerbates inflammation of rheumatoid arthritis. Clin Immunol 2020; 220:108579. [PMID: 32866644 DOI: 10.1016/j.clim.2020.108579] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 08/26/2020] [Indexed: 12/23/2022]
Abstract
Endoplasmic reticulum (ER) stress associated proteins contribute to the pathogenesis of rheumatoid arthritis (RA) through affecting synoviocyte proliferation and proinflammatory cytokine production. The role of DERL3, an ER-associated degradation component, in joint inflammation of RA was explored. Synovial tissues from RA and osteoarthritis (OA) patients were collected, and in RA synovial tissue, DERL3 showed up-regulation and significantly positive correlation with the expression of tumor necrosis factor alpha (TNF-α), interleukin (IL)-6 and matrix metalloproteinase (MMP)-1. Immunofluorescence result suggested DERL3 was located in fibroblast-like synoviocytes (FLS). Among different inflammatory stimuli, DERL3 could be up-regulated by TNF-α stimulation in FLS. Under TNF-α stimulation, knocking down DERL3, the expression of IL-6, IL-8, MMP-1, MMP-13 was reduced and the activation of nuclear factor kappa B (NF-κB) signaling pathway was inhibited. In pristane-induced arthritis (PIA) rat model, Derl3 was up-regulated in synovial tissue and disease was attenuated after intraarticular injection of siDerl3. Overall, we conclude that TNF-α inducing DERL3 expression promotes the inflammation of FLS through activation of NF-κB signaling pathway, suggesting DERL3 plays important roles in the pathogenesis of RA and is a promising therapeutic target.
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Affiliation(s)
- Manman Geng
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Ke Xu
- Xi'an Hong Hui Hospital, the Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Liesu Meng
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Jing Xu
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Congshan Jiang
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yuanxu Guo
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xiaoyu Ren
- Xi'an Hong Hui Hospital, the Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xiaowei Li
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yizhao Peng
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Si Wang
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Fumeng Huang
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jing Zhang
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xipeng Wang
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Wenhua Zhu
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China.
| | - Shemin Lu
- Institute of Molecular and Translational Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China.
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21
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Inhibition of Rheumatoid Arthritis Using Bark, Leaf, and Male Flower Extracts of Eucommia ulmoides. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:3260278. [PMID: 32855647 PMCID: PMC7443016 DOI: 10.1155/2020/3260278] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 05/21/2020] [Accepted: 07/10/2020] [Indexed: 12/29/2022]
Abstract
Eucommia ulmoides Oliv., a native Chinese plant species, has been used as a traditional Chinese medicine formulation to treat rheumatoid arthritis (RA), strengthen bones and muscles, and lower blood pressure. Various parts of this plant such as the bark, leaves, and flowers have been found to have anti-inflammatory properties. E. ulmoides has potential applications as a therapeutic agent against bone disorders, which were investigated in this study. In vitro, RA joint fibroblast-like synoviocytes (RA-FLS) were treated with different concentrations (0, 25, 50, 100, 200, 400, 800, and 1000 μg/mL) of E. ulmoides bark, leaf, and male flower alcoholic extracts (EB, EL, and EF, respectively) to determine their potential cytotoxicity. Tumor necrosis factor- (TNF-) α and nitric oxide (NO) levels in RA-FLS were quantified using enzyme-linked immunosorbent assay (ELISA). Furthermore, collagen-induced arthritis (CIA) rats were treated with EB, EL, EF, Tripterygium wilfordii polyglycoside (TG) or the normal control (Nor), and then ankle joint pathology, bone morphology, and serum and spleen inflammatory cytokine levels were evaluated. The results showed that, in RA-FLS, EB, EL, and EF were not cytotoxic; EB and EF reduced TNF-α supernatant levels; and EB, EL, and EF reduced NO levels. The results of in vivo experiments showed that EB, EL, and EF alleviated ankle swelling and joint inflammation, while all extracts diminished inflammatory cell infiltration, pannus and bone destruction, and bone erosion. All tested extracts inhibited interleukin- (IL-) 6, IL-17, and TNF-α mRNA in the spleen of CIA rats, while EB most effectively reduced osteoclasts and inhibited bone erosion. EF showed the most obvious inhibition of inflammatory factors and pannus. Thus, EB, EL, and EF may alleviate bone destruction by inhibiting inflammation.
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22
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Emori T, Kasahara M, Sugahara S, Hashimoto M, Ito H, Narumiya S, Higashi Y, Fujii Y. Role of JAK-STAT signaling in the pathogenic behavior of fibroblast-like synoviocytes in rheumatoid arthritis: Effect of the novel JAK inhibitor peficitinib. Eur J Pharmacol 2020; 882:173238. [PMID: 32561292 DOI: 10.1016/j.ejphar.2020.173238] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 12/22/2022]
Abstract
Rheumatoid arthritis (RA) fibroblast-like synoviocytes (RA-FLS) play a crucial role in the pathogenesis of RA. RA-FLS display passive pro-inflammatory responses and self-directed aggressive responses, such as pro-inflammatory mediator production, reduced apoptosis and formation of a thickened synovial lining. Evidence suggests a role for Janus kinase (JAK)-signal transducer and transcriptional activator (STAT) signaling in the passive response but the aggressive behavior of RA-FLS is poorly understood. The pharmacologic effects of the novel JAK inhibitor, peficitinib, on cytokine-induced intracellular signaling and self-directed aggressive behavior of RA-FLS (e.g., increased expression of apoptosis-resistant genes and sodium nitroprusside-induced apoptosis) were investigated and compared with approved JAK inhibitors. RA-FLS assembly to form a lining-like structure and pro-inflammatory mediator production was investigated in three-dimensional (3D)-micromass culture. Peficitinib inhibited STAT3 phosphorylation in RA-FLS following induction by interferon (IFN)-α2b, IFN-γ, interleukin (IL)-6, oncostatin M, and leukemia inhibitory factor in a concentration-related manner, and was comparable to approved JAK inhibitors, tofacitinib and baricitinib. Peficitinib and tofacitinib suppressed autocrine phosphorylation of STAT3 and expression of apoptosis-resistant genes, and promoted cell death. In 3D-micromass culture, peficitinib reduced multi-layered RA-FLS cells to a thin monolayer, an effect less pronounced with tofacitinib. Both compounds attenuated production of vascular endothelial growth factor-A, matrix metalloproteinases, IL-6 and tumor necrosis factor superfamily-11. This study confirmed the pathogenic role of uncontrolled JAK-STAT signaling in the aggressive and passive responses of RA-FLS that are critical for RA progression. The novel JAK inhibitor peficitinib suppressed the pro-inflammatory behavior of RA-FLS, accelerated cell death and abrogated thickening of the synovium.
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Affiliation(s)
- Takashi Emori
- Drug Discovery Research, Astellas Pharma Inc., 21 Miyukiga-oka, Tsukuba, Ibaraki, 305-8585, Japan.
| | - Michiko Kasahara
- Drug Discovery Research, Astellas Pharma Inc., 21 Miyukiga-oka, Tsukuba, Ibaraki, 305-8585, Japan; Alliance Laboratory for Advanced Medical Research, Kyoto University Graduate School of Medicine, Kyoto, 606-8507, Japan.
| | - Shingo Sugahara
- Drug Discovery Research, Astellas Pharma Inc., 21 Miyukiga-oka, Tsukuba, Ibaraki, 305-8585, Japan.
| | - Motomu Hashimoto
- Department of Advanced Medicine for Rheumatic Diseases, 54 Kawara-cho, Shougo-in, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Hiromu Ito
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawara-cho, Shougo-in, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Shuh Narumiya
- Alliance Laboratory for Advanced Medical Research, Kyoto University Graduate School of Medicine, Kyoto, 606-8507, Japan.
| | - Yasuyuki Higashi
- Drug Discovery Research, Astellas Pharma Inc., 21 Miyukiga-oka, Tsukuba, Ibaraki, 305-8585, Japan.
| | - Yasutomo Fujii
- Drug Discovery Research, Astellas Pharma Inc., 21 Miyukiga-oka, Tsukuba, Ibaraki, 305-8585, Japan.
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23
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Wei K, Korsunsky I, Marshall JL, Gao A, Watts GFM, Major T, Croft AP, Watts J, Blazar PE, Lange JK, Thornhill TS, Filer A, Raza K, Donlin LT, Siebel CW, Buckley CD, Raychaudhuri S, Brenner MB. Notch signalling drives synovial fibroblast identity and arthritis pathology. Nature 2020; 582:259-264. [PMID: 32499639 PMCID: PMC7841716 DOI: 10.1038/s41586-020-2222-z] [Citation(s) in RCA: 241] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 02/26/2020] [Indexed: 12/26/2022]
Abstract
The synovium is a mesenchymal tissue composed mainly of fibroblasts with a lining and sublining that surrounds the joints. In rheumatoid arthritis (RA), the synovial tissue undergoes marked hyperplasia, becomes inflamed and invasive and destroys the joint1,2. Recently, we and others found that a subset of fibroblasts located in the sublining undergoes major expansion in RA and is linked to disease activity3,4,5. However, the molecular mechanism by which these fibroblasts differentiate and expand in RA remains unknown. Here, we identified a critical role for NOTCH3 signaling in the differentiation of perivascular and sublining CD90(THY1)+ fibroblasts. Using single cell RNA-sequencing and synovial tissue organoids, we found that NOTCH3 signaling drives both transcriptional and spatial gradients in fibroblasts emanating from vascular endothelial cells outward. In active RA, NOTCH3 and NOTCH target genes are markedly upregulated in synovial fibroblasts. Importantly, genetic deletion of Notch3 or monoclonal antibody-blockade of NOTCH3 signaling attenuates inflammation and prevents joint damage in inflammatory arthritis. Our results indicate that synovial fibroblasts exhibit positional identity regulated by endothelium-derived Notch signaling and that this stromal crosstalk pathway underlies inflammation and pathology in inflammatory arthritis.
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Affiliation(s)
- Kevin Wei
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Ilya Korsunsky
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.,Center for Data Sciences, Brigham and Women's Hospital, Boston, MA, USA.,Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.,Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.,Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jennifer L Marshall
- Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Queen Elizabeth Hospital, Birmingham, UK
| | - Anqi Gao
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Gerald F M Watts
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Triin Major
- Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Queen Elizabeth Hospital, Birmingham, UK
| | - Adam P Croft
- Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Queen Elizabeth Hospital, Birmingham, UK
| | - Jordan Watts
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Philip E Blazar
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Jeffrey K Lange
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Thomas S Thornhill
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Andrew Filer
- Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Queen Elizabeth Hospital, Birmingham, UK
| | - Karim Raza
- Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Queen Elizabeth Hospital, Birmingham, UK
| | - Laura T Donlin
- Arthritis and Tissue Degeneration, Hospital for Special Surgery, New York, NY, USA
| | | | - Christian W Siebel
- Department of Discovery Oncology, Genentech, South San Francisco, CA, USA
| | - Christopher D Buckley
- Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Queen Elizabeth Hospital, Birmingham, UK.,The Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Soumya Raychaudhuri
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA. .,Center for Data Sciences, Brigham and Women's Hospital, Boston, MA, USA. .,Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA. .,Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA. .,Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA. .,Centre for Genetics and Genomics Versus Arthritis, Centre for Musculoskeletal Research, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK.
| | - Michael B Brenner
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
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24
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Rothbauer M, Höll G, Eilenberger C, Kratz SRA, Farooq B, Schuller P, Olmos Calvo I, Byrne RA, Meyer B, Niederreiter B, Küpcü S, Sevelda F, Holinka J, Hayden O, Tedde SF, Kiener HP, Ertl P. Monitoring tissue-level remodelling during inflammatory arthritis using a three-dimensional synovium-on-a-chip with non-invasive light scattering biosensing. LAB ON A CHIP 2020; 20:1461-1471. [PMID: 32219235 DOI: 10.1039/c9lc01097a] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Rheumatoid arthritis is a chronic, systemic joint disease in which an autoimmune response translates into an inflammatory attack resulting in joint damage, disability and decreased quality of life. Despite recent introduction of therapeutic agents such as anti-TNFα, even the best current therapies fail to achieve disease remission in most arthritis patients. Therefore, research into the mechanisms governing the destructive inflammatory process in rheumatoid arthritis is of great importance and may reveal novel strategies for the therapeutic interventions. To gain deeper insight into its pathogensis, we have developed for the first time a three-dimensional synovium-on-a-chip system in order to monitor the onset and progression of inflammatory synovial tissue responses. In our study, patient-derived primary synovial organoids are cultivated on a single chip platform containing embedded organic-photodetector arrays for over a week in the absence and presence of tumor-necrosis-factor. Using a label-free and non-invasive optical light-scatter biosensing strategy inflammation-induced 3D tissue-level architectural changes were already detected after two days. We demonstrate that the integration of complex human synovial organ cultures in a lab-on-a-chip provides reproducible and reliable information on how systemic stress factors affect synovial tissue architectures.
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Affiliation(s)
- Mario Rothbauer
- Faculty of Technical Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
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25
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Franzè E, Monteleone I, Laudisi F, Rizzo A, Dinallo V, Di Fusco D, Colantoni A, Ortenzi A, Giuffrida P, Di Carlo S, Sica GS, Di Sabatino A, Monteleone G. Cadherin-11 Is a Regulator of Intestinal Fibrosis. J Crohns Colitis 2020; 14:406-417. [PMID: 31504344 DOI: 10.1093/ecco-jcc/jjz147] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS Although the mechanisms underlying the formation of intestinal fibrostrictures in Crohn's disease [CD] are not fully understood, activation of fibroblasts and excessive collagen deposition are supposed to contribute to the development of such complications. Here, we investigated the role of cadherin-11 [CDH-11], a fibroblast-derived protein that induces collagen production in various organs, in intestinal fibrosis. METHODS CDH-11 expression was evaluated in inflammatory [I] and fibrostricturing [FS] CD mucosal samples, ulcerative colitis [UC] mucosal samples, and ileal and colonic control samples, by real-time polymerase chain reaction, western blotting, and immunohistochemistry. CDH-11 expression was evaluated in normal and in CD intestinal fibroblasts stimulated with inflammatory/fibrogenic cytokines. FS CD fibroblasts were cultured either with a specific CDH-11 antisense oligonucleotide [AS], or activating CDH-11 fusion protein and activation of RhoA/ROCK, and TGF-β pathways and collagen production were evaluated by western blotting. Finally, we assessed the susceptibility of CDH-11-knockout [KO] mice to colitis-induced intestinal fibrosis. RESULTS CDH-11 RNA and protein expression were increased in both CD and UC as compared with controls. In CD, the greater expression of CDH-11 was seen in FS samples. Stimulation of fibroblasts with TNF-α, interleukin [IL]-6, IFN-γ, IL-13, and IL-1β enhanced CDH-11 expression. Knockdown of CDH-11 in FS CD fibroblasts impaired RhoA/ROCK/TGF-β signalling and reduced collagen synthesis, whereas activation of CDH-11 increased collagen secretion. CDH-11 KO mice were largely protected from intestinal fibrosis. CONCLUSIONS Data show that CDH-11 expression is up-regulated in inflammatory bowel disease [IBD] and suggest a role for this protein in the control of intestinal fibrosis.
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Affiliation(s)
- Eleonora Franzè
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
| | - Ivan Monteleone
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
| | - Federica Laudisi
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
| | - Angelamaria Rizzo
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
| | - Vincenzo Dinallo
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
| | - Davide Di Fusco
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
| | - Alfredo Colantoni
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
| | - Angela Ortenzi
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
| | - Paolo Giuffrida
- Department of Internal Medicine, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
| | - Sara Di Carlo
- Department of Surgery, University 'TOR VERGATA' of Rome, Rome, Italy
| | - Giuseppe S Sica
- Department of Surgery, University 'TOR VERGATA' of Rome, Rome, Italy
| | - Antonio Di Sabatino
- Department of Internal Medicine, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
| | - Giovanni Monteleone
- Department of Systems Medicine, University of Rome 'TOR VERGATA', Rome, Italy
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26
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CUX1 and IκBζ (NFKBIZ) mediate the synergistic inflammatory response to TNF and IL-17A in stromal fibroblasts. Proc Natl Acad Sci U S A 2020; 117:5532-5541. [PMID: 32079724 DOI: 10.1073/pnas.1912702117] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The role of stromal fibroblasts in chronic inflammation is unfolding. In rheumatoid arthritis, leukocyte-derived cytokines TNF and IL-17A work together, activating fibroblasts to become a dominant source of the hallmark cytokine IL-6. However, IL-17A alone has minimal effect on fibroblasts. To identify key mediators of the synergistic response to TNF and IL-17A in human synovial fibroblasts, we performed time series, dose-response, and gene-silencing transcriptomics experiments. Here we show that in combination with TNF, IL-17A selectively induces a specific set of genes mediated by factors including cut-like homeobox 1 (CUX1) and IκBζ (NFKBIZ). In the promoters of CXCL1, CXCL2, and CXCL3, we found a putative CUX1-NF-κB binding motif not found elsewhere in the genome. CUX1 and NF-κB p65 mediate transcription of these genes independent of LIFR, STAT3, STAT4, and ELF3. Transcription of NFKBIZ, encoding the atypical IκB factor IκBζ, is IL-17A dose-dependent, and IκBζ only mediates the transcriptional response to TNF and IL-17A, but not to TNF alone. In fibroblasts, IL-17A response depends on CUX1 and IκBζ to engage the NF-κB complex to produce chemoattractants for neutrophil and monocyte recruitment.
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27
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Liu S, Cao C, Zhang Y, Liu G, Ren W, Ye Y, Sun T. PI3K/Akt inhibitor partly decreases TNF-α-induced activation of fibroblast-like synoviocytes in osteoarthritis. J Orthop Surg Res 2019; 14:425. [PMID: 31829201 PMCID: PMC6907257 DOI: 10.1186/s13018-019-1394-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 09/25/2019] [Indexed: 01/15/2023] Open
Abstract
Background The Cadherin-11 and PI3K/Akt pathway are increasingly recognized as the potential therapeutic target of osteoarthritis (OA) synovitis. The study aimed to investigate the role of PI3K/Akt signaling pathway in the expression of Cadherin-11 and migration and invasive capacity of fibroblast-like synoviocytes (FLS) of OA patients under stimulation of TNF-α and to explore the effect of the PI3K/Akt inhibitor and Cadherin-11 antibody in the therapy of the collagenase-induced osteoarthritis (CIOA) mice. Methods FLS were primarily cultured from synovium of osteoarthritic patients during total knee arthroplasty. Under the simulation of TNF-α, with or without PI3K/Akt inhibitor LY294002, Cadherin-11 expression was detected by real-time PCR and Western blot, as well as the migration and invasive capacity changes of OA FLS. Cadherin-11 antibody was injected intraarticularly or LY294002 was injected intraperitoneally in CIOA mice to evaluate the changes of synovitis score, cartilage damage, and Cadherin-11 expression. Results TNF-α stimulation increased Cadherin-11 expression at mRNA and protein level in OA FLS and also increased the phosphorylation-dependent activation of Akt. PI3K inhibitor LY294002 attenuated TNF-α-induced overexpression of Cadherin-11 and decreased the invasive capacity of OA FLS. Intraperitoneal injection of PI3K inhibitor LY294002 could decrease the Cadherin-11 protein expression in synovium of CIOA mice, although it has no significant inhibitory effect on synovitis and cartilage damage. Intraarticular injection of Cadherin-11 antibody attenuated the synovitis and cartilage damage in the CIOA joints and decreased Cadherin-11 expression in the synovial lining. Conclusions PI3K/Akt pathway was associated with TNF-α-induced activation of OA FLS, which may involve in the pathogenesis of osteoarthritis. Anti-Cadherin-11 therapy in CIOA mice could attenuate the pathological changes of OA joints.
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Affiliation(s)
- Songyang Liu
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing, 100044, People's Republic of China
| | - Chenxi Cao
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing, 100044, People's Republic of China.,Institute of Sports Medicine, Peking University Third Hospital, Peking University, Beijing, 100044, People's Republic of China
| | - Yujun Zhang
- The Institute of Clinical molecular Biology and the Central Lab, Peking University, People's Hospital, Peking University , Beijing, 100044, People's Republic of China
| | - Guangyu Liu
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing, 100044, People's Republic of China
| | - Weixia Ren
- The Institute of Clinical molecular Biology and the Central Lab, Peking University, People's Hospital, Peking University , Beijing, 100044, People's Republic of China
| | - Yanqi Ye
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing, 100044, People's Republic of China
| | - Tiezheng Sun
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing, 100044, People's Republic of China.
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28
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Ma C, Chen J, Li P. Geldanamycin induces apoptosis and inhibits inflammation in fibroblast‐like synoviocytes isolated from rheumatoid arthritis patients. J Cell Biochem 2019; 120:16254-16263. [PMID: 31087698 DOI: 10.1002/jcb.28906] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/19/2019] [Accepted: 03/22/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Cuili Ma
- Department of Rheumatology and Immunology China‐Japan Union Hospital of Jilin University Changchun Jilin P.R. China
| | - Jianwei Chen
- Department of Obstetrics Changchun Obstetrics‐Gynecology Hospital Changchun Jilin P.R. China
| | - Ping Li
- Department of Rheumatology and Immunology China‐Japan Union Hospital of Jilin University Changchun Jilin P.R. China
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29
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FOXO3 is involved in the tumor necrosis factor-driven inflammatory response in fibroblast-like synoviocytes. J Transl Med 2019; 99:648-658. [PMID: 30679758 DOI: 10.1038/s41374-018-0184-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 11/14/2018] [Accepted: 11/26/2018] [Indexed: 01/06/2023] Open
Abstract
Fibroblast-like synoviocytes (FLS) are major contributors to joint inflammation in rheumatoid arthritis (RA). Forkhead box O 3 (FOXO3) perturbations in immune cells are increasingly linked to RA pathogenesis. Here, we show that FOXO3 is distinctly inactivated/phosphorylated in the FLS of rheumatoid synovitis. In vitro, stimulation of FLS with tumor necrosis factor-alpha α (TNFα) induced a rapid and sustained inactivation of FOXO3. mRNA profiling revealed that the inactivation of FOXO3 is important for the sustained pro-inflammatory interferon response to TNFα (CXCL9, CXCL10, CXCL11, and TNFSF18). Mechanistically, our studies demonstrate that the inactivation of FOXO3 results from TNF-induced downregulation of phosphoinositide-3-kinase-interacting protein 1 (PIK3IP1). Thus, we identified FOXO3 and its modulator PIK3IP1 as a critical regulatory circuit for the inflammatory response of the resident mesenchymal cells to TNFα and contribute insight into how the synovial tissue brings about chronic inflammation that is driven by TNFα.
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30
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Stefani RM, Halder SS, Estell EG, Lee AJ, Silverstein AM, Sobczak E, Chahine NO, Ateshian GA, Shah RP, Hung CT. A Functional Tissue-Engineered Synovium Model to Study Osteoarthritis Progression and Treatment. Tissue Eng Part A 2019; 25:538-553. [PMID: 30203722 PMCID: PMC6482911 DOI: 10.1089/ten.tea.2018.0142] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 08/31/2018] [Indexed: 01/15/2023] Open
Abstract
IMPACT STATEMENT The synovium envelops the diarthrodial joint and plays a key regulatory role in defining the composition of the synovial fluid through filtration and biosynthesis of critical boundary lubricants. Synovium changes often precede cartilage damage in osteoarthritis. We describe a novel in vitro tissue engineered model, validated against native synovium explants, to investigate the structure-function of synovium through quantitative solute transport measures. Synovium was evaluated in the presence of a proinflammatory cytokine, interleukin-1, or the clinically relevant corticosteroid, dexamethasone. We anticipate that a better understanding of synovium transport would support efforts to develop more effective strategies aimed at restoring joint health.
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Affiliation(s)
- Robert M. Stefani
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Saiti S. Halder
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Eben G. Estell
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Andy J. Lee
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Amy M. Silverstein
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Evie Sobczak
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Nadeen O. Chahine
- Department of Biomedical Engineering, Columbia University, New York, New York
- Department of Orthopedic Surgery, Columbia University, New York, New York
| | - Gerard A. Ateshian
- Department of Biomedical Engineering, Columbia University, New York, New York
- Department of Mechanical Engineering, Columbia University, New York, New York
| | - Roshan P. Shah
- Department of Orthopedic Surgery, Columbia University, New York, New York
| | - Clark T. Hung
- Department of Biomedical Engineering, Columbia University, New York, New York
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31
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Bastounis EE, Ortega FE, Serrano R, Theriot JA. A Multi-well Format Polyacrylamide-based Assay for Studying the Effect of Extracellular Matrix Stiffness on the Bacterial Infection of Adherent Cells. J Vis Exp 2018. [PMID: 30035758 PMCID: PMC6124605 DOI: 10.3791/57361] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Extracellular matrix stiffness comprises one of the multiple environmental mechanical stimuli that are well known to influence cellular behavior, function, and fate in general. Although increasingly more adherent cell types' responses to matrix stiffness have been characterized, how adherent cells' susceptibility to bacterial infection depends on matrix stiffness is largely unknown, as is the effect of bacterial infection on the biomechanics of host cells. We hypothesize that the susceptibility of host endothelial cells to a bacterial infection depends on the stiffness of the matrix on which these cells reside, and that the infection of the host cells with bacteria will change their biomechanics. To test these two hypotheses, endothelial cells were used as model hosts and Listeria monocytogenes as a model pathogen. By developing a novel multi-well format assay, we show that the effect of matrix stiffness on infection of endothelial cells by L. monocytogenes can be quantitatively assessed through flow cytometry and immunostaining followed by microscopy. In addition, using traction force microscopy, the effect of L. monocytogenes infection on host endothelial cell biomechanics can be studied. The proposed method allows for the analysis of the effect of tissue-relevant mechanics on bacterial infection of adherent cells, which is a critical step towards understanding the biomechanical interactions between cells, their extracellular matrix, and pathogenic bacteria. This method is also applicable to a wide variety of other types of studies on cell biomechanics and response to substrate stiffness where it is important to be able to perform many replicates in parallel in each experiment.
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Affiliation(s)
| | - Fabian E Ortega
- Department of Biochemistry, Stanford University School of Medicine
| | - Ricardo Serrano
- Department of Mechanical and Aerospace Engineering, University of California San Diego
| | - Julie A Theriot
- Departments of Biochemistry, Microbiology and Immunology and Howard Hughes Medical Institute, Stanford University School of Medicine
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32
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Olivotto E, Merli G, Assirelli E, Cavallo C, Belluzzi E, Ramonda R, Favero M, Filardo G, Roffi A, Kon E, Grigolo B. Cultures of a human synovial cell line to evaluate platelet-rich plasma and hyaluronic acid effects. J Tissue Eng Regen Med 2018; 12:1835-1842. [PMID: 29770602 DOI: 10.1002/term.2704] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 04/16/2018] [Accepted: 05/03/2018] [Indexed: 12/26/2022]
Abstract
Synovial inflammation plays an important role in osteoarthritis (OA) pathogenesis. Different biological compounds have been tested mainly on chondrocytes, to treat early stages of OA. However, because OA has been recently defined as "an organ" pathology, investigation on synoviocytes is also needed. Therefore, the aim of the present study was to validate a human fibroblast-like synoviocytes cell line (K4IM) to test the effects of platelet-rich plasma (PRP) and hyaluronan (HA) on anabolic and catabolic gene expression and on HA secretion from cell cultures. In order to determine the effect of PRP and HA, K4IM cells were maintained in culture with or without TNF-α stimulation. In the presence of PRP, unstimulated K4IM cells presented the same expression of IL1B, IL6, CXCL8, VEGF, TIMP1, and hyaluronic synthase isoform HAS3 as primary human synoviocytes, while HA addition did not change their expression pattern, which was similar to control cells. Stimulated cells expressed significantly higher values of IL1B, CXCL8, and VEGF compared with unstimulated ones. PRP did not show any modification, except for VEGF, while HA addition modulated IL1B expression. PRP did not modulate HA release of both stimulated and unstimulated cells. Our study showed the possibility to use K4IM synoviocytes as an in vitro model to test biological compounds useful for the treatment of early OA. Primary cells reflect the phenotype of cells in vivo, but limited recovery from biopsies and restricted lifespan makes experimental manipulation challenging. Therefore, despite cell lines present some limitations, they could be used as an alternative for preliminary experiments.
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Affiliation(s)
- E Olivotto
- RAMSES Laboratory, Research and Innovation Technology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - G Merli
- Nano-Biotechnology Laboratory-NaBi, Research and Innovation Technology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - E Assirelli
- Laboratory of Immunorheumatology and Tissue Regeneration, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - C Cavallo
- RAMSES Laboratory, Research and Innovation Technology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - E Belluzzi
- Rheumatology Unit, University Hospital of Padova, Padova, Italy
| | - R Ramonda
- Rheumatology Unit, University Hospital of Padova, Padova, Italy
| | - M Favero
- RAMSES Laboratory, Research and Innovation Technology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.,Rheumatology Unit, University Hospital of Padova, Padova, Italy
| | - G Filardo
- Nano-Biotechnology Laboratory-NaBi, Research and Innovation Technology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - A Roffi
- Nano-Biotechnology Laboratory-NaBi, Research and Innovation Technology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - E Kon
- Department of Biomedical Sciences, Humanitas University, Milan, Italy.,Humanitas Clinical and Research Center, Milan, Italy
| | - B Grigolo
- RAMSES Laboratory, Research and Innovation Technology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.,Laboratory of Immunorheumatology and Tissue Regeneration, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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33
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Lippmann C, Kringel D, Ultsch A, Lötsch J. Computational functional genomics-based approaches in analgesic drug discovery and repurposing. Pharmacogenomics 2018; 19:783-797. [DOI: 10.2217/pgs-2018-0036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Persistent pain is a major healthcare problem affecting a fifth of adults worldwide with still limited treatment options. The search for new analgesics increasingly includes the novel research area of functional genomics, which combines data derived from various processes related to DNA sequence, gene expression or protein function and uses advanced methods of data mining and knowledge discovery with the goal of understanding the relationship between the genome and the phenotype. Its use in drug discovery and repurposing for analgesic indications has so far been performed using knowledge discovery in gene function and drug target-related databases; next-generation sequencing; and functional proteomics-based approaches. Here, we discuss recent efforts in functional genomics-based approaches to analgesic drug discovery and repurposing and highlight the potential of computational functional genomics in this field including a demonstration of the workflow using a novel R library ‘dbtORA’.
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Affiliation(s)
- Catharina Lippmann
- Fraunhofer Institute of Molecular Biology & Applied Ecology – Project Group Translational Medicine & Pharmacology (IME–TMP), Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Dario Kringel
- Institute of Clinical Pharmacology, Goethe-University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Alfred Ultsch
- DataBionics Research Group, University of Marburg, Hans-Meerwein-Straße 6, 35032 Marburg, Germany
| | - Jörn Lötsch
- Fraunhofer Institute of Molecular Biology & Applied Ecology – Project Group Translational Medicine & Pharmacology (IME–TMP), Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
- Institute of Clinical Pharmacology, Goethe-University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
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34
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Mizoguchi F, Slowikowski K, Wei K, Marshall JL, Rao DA, Chang SK, Nguyen HN, Noss EH, Turner JD, Earp BE, Blazar PE, Wright J, Simmons BP, Donlin LT, Kalliolias GD, Goodman SM, Bykerk VP, Ivashkiv LB, Lederer JA, Hacohen N, Nigrovic PA, Filer A, Buckley CD, Raychaudhuri S, Brenner MB. Functionally distinct disease-associated fibroblast subsets in rheumatoid arthritis. Nat Commun 2018; 9:789. [PMID: 29476097 PMCID: PMC5824882 DOI: 10.1038/s41467-018-02892-y] [Citation(s) in RCA: 320] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 01/08/2018] [Indexed: 02/08/2023] Open
Abstract
Fibroblasts regulate tissue homeostasis, coordinate inflammatory responses, and mediate tissue damage. In rheumatoid arthritis (RA), synovial fibroblasts maintain chronic inflammation which leads to joint destruction. Little is known about fibroblast heterogeneity or if aberrations in fibroblast subsets relate to pathology. Here, we show functional and transcriptional differences between fibroblast subsets from human synovial tissues using bulk transcriptomics of targeted subpopulations and single-cell transcriptomics. We identify seven fibroblast subsets with distinct surface protein phenotypes, and collapse them into three subsets by integrating transcriptomic data. One fibroblast subset, characterized by the expression of proteins podoplanin, THY1 membrane glycoprotein and cadherin-11, but lacking CD34, is threefold expanded in patients with RA relative to patients with osteoarthritis. These fibroblasts localize to the perivascular zone in inflamed synovium, secrete proinflammatory cytokines, are proliferative, and have an in vitro phenotype characteristic of invasive cells. Our strategy may be used as a template to identify pathogenic stromal cellular subsets in other complex diseases. Synovial fibroblasts are thought to be central mediators of joint destruction in rheumatoid arthritis (RA). Here the authors use single-cell transcriptomics and flow cytometry to identify synovial fibroblast subsets that are expanded and display distinct tissue distribution and function in patients with RA.
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Affiliation(s)
- Fumitaka Mizoguchi
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.,Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8519, Japan
| | - Kamil Slowikowski
- Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02446, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA.,Bioinformatics and Integrative Genomics, Harvard University, Cambridge, MA, 02138, USA.,Department of Biomedical Informatics, Harvard Medical School, Boston, MA, 02115, USA
| | - Kevin Wei
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Jennifer L Marshall
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), University of Birmingham, Queen Elizabeth Hospital, Birmingham, B15 2WB, UK
| | - Deepak A Rao
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Sook Kyung Chang
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.,JW Creagene Corporation, Seongnam-Si, 13202, South Korea
| | - Hung N Nguyen
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Erika H Noss
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.,Division of Rheumatology, University of Washington, Seattle, WA, 98109, USA
| | - Jason D Turner
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), University of Birmingham, Queen Elizabeth Hospital, Birmingham, B15 2WB, UK
| | - Brandon E Earp
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Philip E Blazar
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - John Wright
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Barry P Simmons
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Laura T Donlin
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Graduate School of Medical Sciences, New York, NY, 10021, USA
| | - George D Kalliolias
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
| | - Susan M Goodman
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Graduate School of Medical Sciences, New York, NY, 10021, USA
| | - Vivian P Bykerk
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Graduate School of Medical Sciences, New York, NY, 10021, USA
| | - Lionel B Ivashkiv
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Graduate School of Medical Sciences, New York, NY, 10021, USA
| | - James A Lederer
- Department of Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Nir Hacohen
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA.,Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Charlestown, MA, 02114, USA.,Department of Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Peter A Nigrovic
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.,Division of Immunology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Andrew Filer
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), University of Birmingham, Queen Elizabeth Hospital, Birmingham, B15 2WB, UK
| | - Christopher D Buckley
- Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), University of Birmingham, Queen Elizabeth Hospital, Birmingham, B15 2WB, UK
| | - Soumya Raychaudhuri
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA. .,Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02446, USA. .,Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA. .,Department of Biomedical Informatics, Harvard Medical School, Boston, MA, 02115, USA. .,Arthritis Research UK Centre for Genetics and Genomics, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK.
| | - Michael B Brenner
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
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35
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Emori T, Hirose J, Ise K, Yomoda JI, Kasahara M, Shinkuma T, Yoshitomi H, Ito H, Hashimoto M, Sugahara S, Fujita H, Yamamoto N, Morita Y, Narumiya S, Aramori I. Constitutive Activation of Integrin α9 Augments Self-Directed Hyperplastic and Proinflammatory Properties of Fibroblast-like Synoviocytes of Rheumatoid Arthritis. THE JOURNAL OF IMMUNOLOGY 2017; 199:3427-3436. [PMID: 29038247 DOI: 10.4049/jimmunol.1700941] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 09/16/2017] [Indexed: 01/23/2023]
Abstract
Despite advances in the treatment of rheumatoid arthritis (RA), currently approved medications can have significant side effects due to their direct immunosuppressive activities. Additionally, current therapies do not address residual synovial inflammation. In this study, we evaluated the role of integrin α9 and its ligand, tenascin-C (Tn-C), on the proliferative and inflammatory response of fibroblast-like synoviocytes (FLSs) from RA patients grown in three-dimensional (3D)-micromass culture. FLSs from osteoarthritis patients, when grown in the 3D-culture system, formed self-directed lining-like structures, whereas FLSs from RA tissues (RA-FLSs) developed an abnormal structure of condensed cellular accumulation reflective of the pathogenic features of RA synovial tissues. Additionally, RA-FLSs grown in 3D culture showed autonomous production of proinflammatory mediators. Predominant expression of α9 and Tn-C was observed in the condensed lining, and knockdown of these molecules abrogated the abnormal lining-like structure formation and suppressed the spontaneous expression of matrix metalloproteinases, IL-6, TNFSF11/RANKL, and cadherin-11. Disruption of α9 also inhibited expression of Tn-C, suggesting existence of a positive feedback loop in which the engagement of α9 with Tn-C self-amplifies its own signaling and promotes progression of synovial hyperplasia. Depletion of α9 also suppressed the platelet-derived growth factor-induced hyperplastic response of RA-FLSs and blunted the TNF-α-induced expression of matrix metalloproteinases and IL-6. Finally, α9-blocking Ab also suppressed the formation of the condensed cellular lining by RA-FLSs in 3D cultures in a concentration-related manner. This study demonstrates the central role of α9 in pathogenic behaviors of RA-FLSs and highlights the potential of α9-blocking agents as a nonimmunosuppressive treatment for RA-associated synovitis.
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Affiliation(s)
- Takashi Emori
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.,Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
| | - Jun Hirose
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.,Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
| | - Kotoko Ise
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.,Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
| | - Jun-Ichiro Yomoda
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.,Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
| | - Michiko Kasahara
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Tadanobu Shinkuma
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.,Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
| | - Hiroyuki Yoshitomi
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Hiromu Ito
- Department of Orthopedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; and
| | - Motomu Hashimoto
- Department of the Control for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Shingo Sugahara
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
| | - Hirotada Fujita
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
| | | | - Yoshiaki Morita
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.,Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
| | - Shuh Narumiya
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Ichiro Aramori
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan; .,Drug Discovery Research, Astellas Pharma Inc., Ibaraki 305-8585, Japan
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36
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Nguyen HN, Noss EH, Mizoguchi F, Huppertz C, Wei KS, Watts GFM, Brenner MB. Autocrine Loop Involving IL-6 Family Member LIF, LIF Receptor, and STAT4 Drives Sustained Fibroblast Production of Inflammatory Mediators. Immunity 2017; 46:220-232. [PMID: 28228280 DOI: 10.1016/j.immuni.2017.01.004] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 12/05/2016] [Accepted: 12/22/2016] [Indexed: 12/22/2022]
Abstract
Fibroblasts are major contributors to and regulators of inflammation and dominant producers of interleukin-6 (IL-6) in inflammatory diseases like rheumatoid arthritis. Yet, compared to leukocytes, the regulation of inflammatory pathways in fibroblasts is largely unknown. Here, we report that analyses of genes coordinately upregulated with IL-6 pointed to STAT4 and leukemia inhibitory factor (LIF) as potentially linked. Gene silencing revealed that STAT4 was required for IL-6 transcription. STAT4 was recruited to the IL-6 promoter after fibroblast activation, and LIF receptor (LIFR) and STAT4 formed a molecular complex that, together with JAK1 and TYK2 kinases, controlled STAT4 activation. Importantly, a positive feedback loop involving autocrine LIF, LIFR, and STAT4 drove sustained IL-6 transcription. Besides IL-6, this autorine loop also drove the production of other key inflammatory factors including IL-8, granulocyte-colony stimulating factor (G-CSF), IL-33, IL-11, IL-1α, and IL-1β. These findings define the transcriptional regulation of fibroblast-mediated inflammation as distinct from leukocytes.
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Affiliation(s)
- Hung N Nguyen
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Erika H Noss
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Fumitaka Mizoguchi
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Christine Huppertz
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Kevin S Wei
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Gerald F M Watts
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Michael B Brenner
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.
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37
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Sfikakis PP, Vlachogiannis NI, Christopoulos PF. Cadherin-11 as a therapeutic target in chronic, inflammatory rheumatic diseases. Clin Immunol 2017; 176:107-113. [DOI: 10.1016/j.clim.2017.01.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 01/18/2017] [Accepted: 01/19/2017] [Indexed: 12/17/2022]
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38
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Broeren MGA, de Vries M, Bennink MB, Arntz OJ, van Lent PLEM, van der Kraan PM, van den Berg WB, van den Hoogen FHJ, Koenders MI, van de Loo FAJ. Suppression of the inflammatory response by disease-inducible interleukin-10 gene therapy in a three-dimensional micromass model of the human synovial membrane. Arthritis Res Ther 2016; 18:186. [PMID: 27519904 PMCID: PMC4983024 DOI: 10.1186/s13075-016-1083-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 07/26/2016] [Indexed: 02/01/2023] Open
Abstract
Background Gene therapy has the potential to provide long-term production of therapeutic proteins in the joints of osteoarthritis (OA) patients. The objective of this study was to analyse the therapeutic potential of disease-inducible expression of anti-inflammatory interleukin-10 (IL-10) in the three-dimensional micromass model of the human synovial membrane. Methods Synovial tissue samples from OA patients were digested and the cells were mixed with Matrigel to obtain 3D micromasses. The CXCL10 promoter combined with the firefly luciferase reporter in a lentiviral vector was used to determine the response of the CXCL10 promoter to tumour necrosis factor alpha (TNF-α), interleukin-1β (IL-1β) and lipopolysaccharide (LPS). The effects of recombinant IL-10 on gene expression were determined by quantitative PCR. The production of IL-10 from the CXCL10p-IL10 vector and the effects on pro-inflammatory cytokine production were assessed by multiplex ELISA. Results Micromasses made from whole synovial membrane cell suspensions form a distinct surface composition containing macrophage and fibroblast-like synoviocytes thus mimicking the synovial lining. This lining can be transduced by lentiviruses and allow CXCL-10 promoter-regulated transgene expression. Adequate amounts of IL-10 transgene were produced after stimulation with pro-inflammatory factors able to reduce the production of synovial IL-1β and IL-6. Conclusions Synovial micromasses are a suitable model to test disease-regulated gene therapy approaches and the CXCL10p-IL10 vector might be a good candidate to decrease the inflammatory response implicated in the pathogenesis of OA. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-1083-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mathijs G A Broeren
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Marieke de Vries
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Miranda B Bennink
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Onno J Arntz
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Peter L E M van Lent
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Peter M van der Kraan
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Wim B van den Berg
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Frank H J van den Hoogen
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Marije I Koenders
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Fons A J van de Loo
- Experimental Rheumatology, Department of Rheumatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands.
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Ge X, Ritter SY, Tsang K, Shi R, Takei K, Aliprantis AO. Sex-Specific Protection of Osteoarthritis by Deleting Cartilage Acid Protein 1. PLoS One 2016; 11:e0159157. [PMID: 27415616 PMCID: PMC4945026 DOI: 10.1371/journal.pone.0159157] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 06/28/2016] [Indexed: 11/19/2022] Open
Abstract
Cartilage acidic protein 1 (CRTAC1) was recently identified as an elevated protein in the synovial fluid of patients with osteoarthritis (OA) by a proteomic analysis. This gene is also upregulated in both human and mouse OA by transcriptomic analysis. The objective of this study was to characterize the expression and function of CRTAC1 in OA. Here, we first confirm the increase of CRTAC1 in cartilage biopsies from OA patients undergoing joint replacement by real-time PCR and immunohistochemistry. Furthermore, we report that proinflammatory cytokines interleukin-1beta and tumor necrosis factor alpha upregulate CRTAC1 expression in primary human articular chondrocytes and synovial fibroblasts. Genetic deletion of Crtac1 in mice significantly inhibited cartilage degradation, osteophyte formation and gait abnormalities of post-traumatic OA in female, but not male, animals undergoing the destabilization of medial meniscus (DMM) surgery. Taken together, CRTAC1 is upregulated in the osteoarthritic joint and directly induced in chondrocytes and synovial fibroblasts by pro-inflammatory cytokines. This molecule is necessary for the progression of OA in female mice after DMM surgery and thus represents a potential therapy for this prevalent disease, especially for women who demonstrate higher rates and more severe OA.
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Affiliation(s)
- Xianpeng Ge
- Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - Susan Y. Ritter
- Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Kelly Tsang
- Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Ruirui Shi
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, Massachusetts, United States of America
| | - Kohtaro Takei
- Molecular Medical Bioscience Laboratory, Department of Medical Life Science, Yokohama City University Graduate School of Medical Life Science, Yokohama, Japan
| | - Antonios O. Aliprantis
- Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
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Sung DC, Bowen CJ, Vaidya KA, Zhou J, Chapurin N, Recknagel A, Zhou B, Chen J, Kotlikoff M, Butcher JT. Cadherin-11 Overexpression Induces Extracellular Matrix Remodeling and Calcification in Mature Aortic Valves. Arterioscler Thromb Vasc Biol 2016; 36:1627-37. [PMID: 27312222 DOI: 10.1161/atvbaha.116.307812] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/06/2016] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Calcific aortic valve (AoV) disease is a significant clinical problem for which the regulatory mechanisms are poorly understood. Enhanced cell-cell adhesion is a common mechanism of cellular aggregation, but its role in calcific lesion formation is not known. Cadherin-11 (Cad-11) has been associated with lesion formation in vitro, but its function during adult valve homeostasis and pathogenesis is not known. This study aims to elucidate the specific functions of Cad-11 and its downstream targets, RhoA and Sox9, in extracellular matrix remodeling and AoV calcification. APPROACH AND RESULTS We conditionally overexpressed Cad-11 in murine heart valves using a novel double-transgenic Nfatc1(Cre);R26-Cad11(TglTg) mouse model. These mice developed hemodynamically significant aortic stenosis with prominent calcific lesions in the AoV leaflets. Cad-11 overexpression upregulated downstream targets, RhoA and Sox9, in the valve interstitial cells, causing calcification and extensive pathogenic extracellular matrix remodeling. AoV interstitial cells overexpressing Cad-11 in an osteogenic environment in vitro rapidly form calcific nodules analogous to in vivo lesions. Molecular analyses revealed upregulation of osteoblastic and myofibroblastic markers. Treatment with a Rho-associated protein kinase inhibitor attenuated nodule formation, further supporting that Cad-11-driven calcification acts through the small GTPase RhoA/Rho-associated protein kinase signaling pathway. CONCLUSIONS This study identifies one of the underlying molecular mechanisms of heart valve calcification and demonstrates that overexpression of Cad-11 upregulates RhoA and Sox9 to induce calcification and extracellular matrix remodeling in adult AoV pathogenesis. The findings provide a potential molecular target for clinical treatment.
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Affiliation(s)
- Derek C Sung
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Caitlin J Bowen
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Kiran A Vaidya
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Jingjing Zhou
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Nikita Chapurin
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Andrew Recknagel
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Bin Zhou
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Jonathan Chen
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Michael Kotlikoff
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.)
| | - Jonathan T Butcher
- From the Meinig School of Biomedical Engineering (D.C.S., C.J.B., K.A.V., J.Z., N.C., A.R., J.T.B.) and Department of Biomedical Sciences (M.K.), Cornell University, Ithaca, NY; Department of Genetics, Pediatrics, and Medicine (Cardiology), Albert Einstein College of Medicine, Montefiore Medical Center, New York (B.Z.); and Department of Pediatric Cardiovascular Surgery, Seattle Children's Hospital, WA (J.C.).
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Del Rey MJ, Faré R, Usategui A, Cañete JD, Bravo B, Galindo M, Criado G, Pablos JL. CD271(+) stromal cells expand in arthritic synovium and exhibit a proinflammatory phenotype. Arthritis Res Ther 2016; 18:66. [PMID: 26980374 PMCID: PMC4791981 DOI: 10.1186/s13075-016-0966-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/29/2016] [Indexed: 12/27/2022] Open
Abstract
Background CD271+ stromal cells (SCs) with multipotent stem cell capacity have been identified in synovial tissues, but their functional significance is unknown. We analyzed the distribution of CD271+ cells in inflammatory synovial tissues as well as their ex vivo immunomodulatory and inflammatory phenotypes. Methods CD271 expression was analyzed by immunohistochemistry in synovial tissues and by flow cytometry in primary adherent synovial cell cultures from rheumatoid arthritis (RA), osteoarthritis (OA), and non-inflammatory control tissues. Isolation of CD271+ synovial SCs was carried out by magnetic cell sorting. Allogeneic T-cell/SC cocultures were performed to analyze the regulatory capacity of these cells on T-cell proliferation and cytokine production. The production of inflammatory mediators was analyzed in cultures of sorted CD271+/− SCs. The capacity of CD271+/− SCs to induce inflammatory cell recruitment in vivo was evaluated in subcutaneous implants in immunodeficient mice. Results CD271+ SC were detected in non-inflammatory as well as in arthritic synovial tissues with a specific perivascular distribution. CD271+ SC density was increased in RA and OA compared with normal synovial tissues. T-cell proliferation and cytokine synthesis were similarly modified by CD271+ and CD271− SCs. Sorted CD271+ SCs from OA synovial tissues released significantly more interleukin (IL)-6, matrix metalloproteinase (MMP)-1, and MMP-3 than CD271− SCs. In immunodeficient mice, implants of CD271+ SCs induced significantly higher myeloid cell infiltration than CD271− SCs. Conclusions Our results demonstrate that CD271+ perivascular SCs expand in RA and OA synovial tissues. CD271+ cells showed enhanced proinflammatory properties ex vivo and in vivo, whereas immunoregulatory properties were equivalent in CD271+ and CD271− SC. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-0966-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Manuel J Del Rey
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Regina Faré
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Alicia Usategui
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Juan D Cañete
- Unitat d'Artritis, Servei de Reumatologia, Hospital Clínic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pí i Sunyer, Barcelona, Spain
| | - Beatriz Bravo
- Servicio de Cirugía Ortopédica y Traumatología, Hospital 12 de Octubre, Madrid, Spain
| | - María Galindo
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Gabriel Criado
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - José L Pablos
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain.
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Molligan J, Barr C, Mitchell R, Schon L, Zhang Z. Pathological role of fibroblast-like synoviocytes in charcot neuroarthropathy. J Orthop Res 2016. [PMID: 26212797 DOI: 10.1002/jor.22989] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This study was designed to characterize the synovium in the joints of Charcot neuroarthropathy (CNA) and investigate the potential role of fibroblast-like synoviocytes (FLS) in the pathology of CNA. Synovial samples were collected from CNA patients (n = 7) and non-CNA patients (n = 7), for control, during orthopaedic procedures and used for histology and isolation of FLS. Histological characterization of synovium included innervation and FLS localization. The isolated FLS from the CNA and non-CNA synovium were cultured, with or without tumor necrosis factor-α (TNF-α), for evaluation of invasiveness, gene expression, and cartilage degradation. Vasoactive intestinal peptide (VIP), a neuropeptide, was supplemented into the co-cultures of FLS and cartilage explants. Compared with the non-CNA synovium, CNA synovium was highly inflammatory, with reduced innervation and intense expression of cadherin-11. The FLS isolated from CNA synovium, particularly when activated with TNF-α, were more invasive, increased the expression of ADAMTS4, IL-6, and RANKL, and depleted proteoglycans from cartilage explants when they were co-cultured. Addition of VIP into the culture medium neutralized the catabolic effect of the CNA FLS on cartilage explants. In conclusion, FLS plays an important role in the pathology of CNA. Therapies targeting synovium and FLS may prevent or treat the joint destruction in CNA.
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Affiliation(s)
- Jeremy Molligan
- Orthobiologic Laboratory, MedStar Union Memorial Hospital, 201 E. University Parkway, Baltimore, Maryland, 21218
| | - Cameron Barr
- Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, Maryland
| | - Reed Mitchell
- Orthobiologic Laboratory, MedStar Union Memorial Hospital, 201 E. University Parkway, Baltimore, Maryland, 21218
| | - Lew Schon
- Orthobiologic Laboratory, MedStar Union Memorial Hospital, 201 E. University Parkway, Baltimore, Maryland, 21218.,Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, Maryland
| | - Zijun Zhang
- Orthobiologic Laboratory, MedStar Union Memorial Hospital, 201 E. University Parkway, Baltimore, Maryland, 21218
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Wu M, Lu H, Yu F, Zhou Y. Trend of Cadherin-11 expression and its impact on cartilage degradation in the temporomandibular joints of guinea pigs with spontaneous osteoarthritis. J Oral Pathol Med 2015; 45:534-8. [PMID: 26710939 DOI: 10.1111/jop.12403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2015] [Indexed: 01/28/2023]
Abstract
BACKGROUND This study aims to investigate spatial and temporal changes in cadherin-11 (CAD-11) expression and their effects on cartilage degeneration in the temporomandibular joint (TMJ) of guinea pigs with spontaneous osteoarthritis (OA). METHODS Dunkin-Hartley (DH) and Bristol strain 2 (BS2) guinea pigs at ages of 1, 3, 6, 9, and 12 months were categorized into two groups and analyzed. The bilateral TMJ condyles of DH and BS2 guinea pigs were harvested and fixed. The distribution and expression profiles of CAD-11, collagen type II, and matrix metalloproteinase 3 (MMP-3) were detected by immunohistological assays. Histological micrographs of the condyle cartilage were obtained and analyzed. RESULTS Osteoarthritis can be spontaneously induced by mechanical stress in DH guinea pigs. The main histopathological changes in the TMJ structure and increased expression of MMP-3 occurred within 6-9 months of ages in DH guinea pigs with spontaneous OA. By contrast, minimal to mild cartilage degradations were observed in the TMJ of BS2 guinea pigs even at the age of 12 months. From as early as 3 months of age, the expression levels of CAD-11 were upregulated in the TMJ of DH guinea pigs compared with those in BS2 animals. CAD-11 expression differed between the two groups at 12 months of age. CONCLUSIONS Increased CAD-11 expression within cartilage is associated with the development and progression of OA between the two strains of guinea pigs. Therefore, CAD-11 expression in TMJ could be an important predisposing factor for the development of spontaneous OA.
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Affiliation(s)
- Mengjie Wu
- Department of Orthodontics, Hospital of Stomatology, Zhejiang University, Hangzhou, China
| | - Haiping Lu
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Fengyang Yu
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yiqun Zhou
- Department of Orthodontics, Hospital of Stomatology, Zhejiang University, Hangzhou, China
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Genetic polymorphism directs IL-6 expression in fibroblasts but not selected other cell types. Proc Natl Acad Sci U S A 2015; 112:14948-53. [PMID: 26578807 DOI: 10.1073/pnas.1520861112] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Interleukin (IL)-6 blockade is an effective treatment for rheumatoid arthritis (RA), and synovial fibroblasts are a major IL-6 producer in the inflamed joint. We found that human RA and osteoarthritis (OA) synovial fibroblasts derived from independent donors reproducibly segregated into low, medium, and high IL-6 producers, independent of stimulus, cell passage, or disease state. IL-6 expression pattern correlated strongly with total mRNA expression, not mRNA stability, suggesting transcriptional rather than posttranscriptional regulation. High-fibroblast IL-6 expression was significantly associated with the IL-6 proximal promoter single nucleotide polymorphism (SNP) rs1800795 minor allele (CC) genotype. In contrast, no association between this SNP and IL-6 production was detected in CD14(+) monocytes, another major producer of synovial IL-6. Luciferase expression assays confirmed that this SNP was associated with differential IL-6 expression in fibroblasts. To date, several association studies examining rs1800795 allele frequency and disease risk have reported seemingly conflicting results ranging from no association to association with either the major or minor allele across a spectrum of conditions, including cancer and autoimmune, cardiovascular, infectious, and metabolic diseases. This study points to a prominent contribution from promoter genetic variation in fibroblast IL-6 regulation, but not in other IL-6-producing cell types. We propose that some of the heterogeneity in these clinical studies likely reflects the cellular source of IL-6 in specific diseases, much of which may be produced by nonhematopoietic cells. These results highlight that functional analysis of disease-associated SNPs on gene expression and pathologic processes must consider variation in diverse cell types.
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Chen J, Ryzhova LM, Sewell-Loftin MK, Brown CB, Huppert SS, Baldwin HS, Merryman WD. Notch1 Mutation Leads to Valvular Calcification Through Enhanced Myofibroblast Mechanotransduction. Arterioscler Thromb Vasc Biol 2015; 35:1597-605. [PMID: 26023079 DOI: 10.1161/atvbaha.114.305095] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 05/19/2015] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Calcific aortic valve disease (CAVD) is a significant cardiovascular disorder, and controversy exists as to whether it is primarily a dystrophic or osteogenic process in vivo. In this study, we sought to clarify the mechanism of CAVD by assessing a genetic mutation, Notch1 heterozygosity, which leads to CAVD with 100% penetrance in humans. APPROACH AND RESULTS Murine immortalized Notch1(+/-) aortic valve interstitial cells (AVICs) were isolated and expanded in vitro. Molecular signaling of wild-type and Notch1(+/-) AVICs were compared to identify changes in pathways that have been linked to CAVD-transforming growth factor-β1/bone morphogenetic protein, mitogen-activated protein kinase, and phosphoinositide 3-kinase/protein kinase B-and assessed for calcification potential. Additionally, AVIC mechanobiology was studied in a physiologically relevant, dynamic mechanical environment (10% cyclic strain) to investigate differences in responses between the cell types. We found that Notch1(+/-) AVICs resembled a myofibroblast-like phenotype expressing higher amounts of cadherin-11, a known mediator of dystrophic calcification, and decreased Runx2, a known osteogenic marker. We determined that cadherin-11 expression is regulated by Akt activity, and inhibition of Akt phosphorylation significantly reduced cadherin-11 expression. Moreover, in the presence of cyclic strain, Notch1(+/-) AVICs exhibited significantly upregulated phosphorylation of Akt at Ser473 and smooth muscle α-actin expression, indicative of a fully activated myofibroblast. Finally, these Notch1-mediated alterations led to enhanced dystrophic calcific nodule formation. CONCLUSIONS This study presents novel insights in our understanding of Notch1-mediated CAVD by demonstrating that the mutation leads to AVICs that are fully activated myofibroblasts, resulting in dystrophic, but not osteogenic, calcification.
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Affiliation(s)
- Joseph Chen
- From the Department of Biomedical Engineering (J.C., L.M.R., M.K.S.-L., W.D.M.) and Divison of Cardiology, Department of Pediatrics (C.B.B., H.S.B.), Vanderbilt University, Nashville, TN; and Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital, OH (S.S.H.)
| | - Larisa M Ryzhova
- From the Department of Biomedical Engineering (J.C., L.M.R., M.K.S.-L., W.D.M.) and Divison of Cardiology, Department of Pediatrics (C.B.B., H.S.B.), Vanderbilt University, Nashville, TN; and Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital, OH (S.S.H.)
| | - M K Sewell-Loftin
- From the Department of Biomedical Engineering (J.C., L.M.R., M.K.S.-L., W.D.M.) and Divison of Cardiology, Department of Pediatrics (C.B.B., H.S.B.), Vanderbilt University, Nashville, TN; and Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital, OH (S.S.H.)
| | - Christopher B Brown
- From the Department of Biomedical Engineering (J.C., L.M.R., M.K.S.-L., W.D.M.) and Divison of Cardiology, Department of Pediatrics (C.B.B., H.S.B.), Vanderbilt University, Nashville, TN; and Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital, OH (S.S.H.)
| | - Stacey S Huppert
- From the Department of Biomedical Engineering (J.C., L.M.R., M.K.S.-L., W.D.M.) and Divison of Cardiology, Department of Pediatrics (C.B.B., H.S.B.), Vanderbilt University, Nashville, TN; and Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital, OH (S.S.H.)
| | - H Scott Baldwin
- From the Department of Biomedical Engineering (J.C., L.M.R., M.K.S.-L., W.D.M.) and Divison of Cardiology, Department of Pediatrics (C.B.B., H.S.B.), Vanderbilt University, Nashville, TN; and Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital, OH (S.S.H.)
| | - W David Merryman
- From the Department of Biomedical Engineering (J.C., L.M.R., M.K.S.-L., W.D.M.) and Divison of Cardiology, Department of Pediatrics (C.B.B., H.S.B.), Vanderbilt University, Nashville, TN; and Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital, OH (S.S.H.).
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Noss EH, Watts GFM, Zocco D, Keller TL, Whitman M, Blobel CP, Lee DM, Brenner MB. Evidence for cadherin-11 cleavage in the synovium and partial characterization of its mechanism. Arthritis Res Ther 2015; 17:126. [PMID: 25975695 PMCID: PMC4449585 DOI: 10.1186/s13075-015-0647-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 05/01/2015] [Indexed: 12/12/2022] Open
Abstract
Introduction Engagement of the homotypic cell-to-cell adhesion molecule cadherin-11 on rheumatoid arthritis (RA) synovial fibroblasts with a chimeric molecule containing the cadherin-11 extracellular binding domain stimulated cytokine, chemokine, and matrix metalloproteinases (MMP) release, implicating cadherin-11 signaling in RA pathogenesis. The objective of this study was to determine if cadherin-11 extracellular domain fragments are found inside the joint and if a physiologic synovial fibroblast cleavage pathway releases those fragments. Methods Cadherin-11 cleavage fragments were detected by western blot in cell media or lysates. Cleavage was interrupted using chemical inhibitors or short-interfering RNA (siRNA) gene silencing. The amount of cadherin-11 fragments in synovial fluid was measured by western blot and ELISA. Results Soluble cadherin-11 extracellular fragments were detected in human synovial fluid at significantly higher levels in RA samples compared to osteoarthritis (OA) samples. A cadherin-11 N-terminal extracellular binding domain fragment was shed from synovial fibroblasts after ionomycin stimulation, followed by presenilin 1 (PSN1)-dependent regulated intramembrane proteolysis of the retained membrane-bound C-terminal fragments. In addition to ionomycin-induced calcium flux, tumor necrosis factor (TNF)-α also stimulated cleavage in both two- and three-dimensional fibroblast cultures. Although cadherin-11 extracellular domains were shed by a disintegrin and metalloproteinase (ADAM) 10 in several cell types, a novel ADAM- and metalloproteinase-independent activity mediated shedding in primary human fibroblasts. Conclusions Cadherin-11 undergoes ectodomain shedding followed by regulated intramembrane proteolysis in synovial fibroblasts, triggered by a novel sheddase that generates extracelluar cadherin-11 fragments. Cadherin-11 fragments were enriched in RA synovial fluid, suggesting they may be a marker of synovial burden and may function to modify cadherin-11 interactions between synovial fibroblasts. Electronic supplementary material The online version of this article (doi:10.1186/s13075-015-0647-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Erika H Noss
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard School of Medicine, Smith Research Building, 5th floor, 1 Jimmy Fund Way, Boston, MA, 02115, USA.
| | - Gerald F M Watts
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard School of Medicine, Smith Research Building, 5th floor, 1 Jimmy Fund Way, Boston, MA, 02115, USA.
| | - Davide Zocco
- Exosomics Siena S.p.A., Strada del Petriccio e Belriguardo, 35, 53100, Siena, Italy.
| | - Tracy L Keller
- Harvard School of Dental Medicine, Department of Developmental Biology, REB 505, 190 Longwood Avenue, Boston, MA, 02115, USA.
| | - Malcolm Whitman
- Harvard School of Dental Medicine, Department of Developmental Biology, REB 505, 190 Longwood Avenue, Boston, MA, 02115, USA.
| | - Carl P Blobel
- Hospital for Special Surgery, 535 east 70th Street, New York, NY, 10021, USA.
| | - David M Lee
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard School of Medicine, Smith Research Building, 5th floor, 1 Jimmy Fund Way, Boston, MA, 02115, USA. .,F. Hoffman-La Roche Ltd, Grenzacherstrasse 124, Building 69/Room 206, 4070, Basel, Switzerland.
| | - Michael B Brenner
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard School of Medicine, Smith Research Building, 5th floor, 1 Jimmy Fund Way, Boston, MA, 02115, USA.
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Ding X, Zhang Y, Huang Y, Liu S, Lu H, Sun T. Cadherin-11 involves in synovitis and increases the migratory and invasive capacity of fibroblast-like synoviocytes of osteoarthritis. Int Immunopharmacol 2015; 26:153-61. [PMID: 25824718 DOI: 10.1016/j.intimp.2015.03.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 03/06/2015] [Accepted: 03/18/2015] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To detect the expression of cadherin-11 and its correlation with synovitis in osteoarthritis (OA), to explore the mechanism of over expression of cadherin-11 and its role in migratory or invasive capacity of fibroblast-like synoviocytes (FLS). METHODS Synovitis severity was recorded according to Krenn's scoring system in 25 osteoarthritis patients undergoing total knee arthroplasty. Cadherin-11 expression in OA synoviums and its correlation with synovitis score and systemic inflammation markers were explored. After induction with Interleukin-1 beta (IL-1β) or tumor necrosis factor-alpha (TNF-α),cadherin-11 expression on OA FLS was assessed by qPCR and western blot,the capacity of migration and invasion of OA FLS was tested by transwell assay, and matrix metalloproteinase-2 production was assessed with ELISA as cadherin-11 expression was up regulated after infection with cadherin-11 cDNA-containing lentivirus, also when cadherin-11 expression was knocked down after infection with cadherin 11 shRNA containing lentivirus. RESULTS Cadherin-11 expression in OA synovium showed significant differences among different grades of synovitis. Cadherin-11 in the lining layer was positively correlated with hyperplasia of the lining layer, density of the resident cells, inflammatory infiltrate, total synovitis score and D-dimer. Cadherin-11 in the sublining layer was positively correlated with the density of the resident cells, inflammatory infiltrate, total synovitis score and erythrocyte sedimentation rate. IL-1β or TNF-α could up-regulate cadherin-11 expression on OA FLS at transcriptional and protein level. Over expression of cadherin-11 increased migratory or invasive capacity of OA FLS, while cadherin-11 knock down reduced migratory or invasive capacity and MMP-2 production in OA FLS. CONCLUSION The over expression of cadherin-11 in osteoarthritis is positively correlated with synovitis severity, and can be driven by proinflammatory cytokines on OA FLS; cadherin-11 increases migratory or invasive capacity and MMP-2 production of fibroblast-like synoviocytes of osteoarthritis.
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Affiliation(s)
- Xiaoquan Ding
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing China
| | - Yujun Zhang
- Clinical Institute of Molecular Biology, People's Hospital, Peking University, Beijing China
| | - Yuelong Huang
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing China
| | - Songyang Liu
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing China
| | - Houshan Lu
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing China
| | - Tiezheng Sun
- Arthritis Clinic and Research Center, People's Hospital, Peking University, Beijing China.
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Yoshioka R, Kita Y, Nagahira A, Manno A, Makita N, Tomita U, Murakawa M. Quantitative analysis of cadherin-11 and β-catenin signalling during proliferation of rheumatoid arthritis-derived synovial fibroblast cells. J Pharm Pharmacol 2015; 67:1075-82. [DOI: 10.1111/jphp.12410] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 02/01/2015] [Indexed: 12/14/2022]
Abstract
Abstract
Objectives
Cadherin-11 (CDH11) is an adhesion molecule that anchors β-catenin and is involved with various functions of synovial fibroblast cells (SFCs) during the development of rheumatoid arthritis (RA). However, the mechanism of CDH11 during RA-SFC proliferation is unclear. The aim of our study was to clarify the involvement of CDH11 and β-catenin signalling during proliferation.
Methods
IL-1β-induced and tumour necrosis factor-α (TNF-α)-induced cell proliferation, with CDH11 siRNAs, β-catenin-specific siRNAs and a CDH11-neutralizing antibody, were assessed by 5-Bromo-2'-deoxy-uridine ELISA.
Key findings
Using CDH11 siRNAs, there were a 42% reduction in IL-1β-induced proliferation and a 64% reduction in β-catenin protein. When β-catenin siRNAs were applied, there was a 63% reduction in IL-1β-induced proliferation. The median effective concentration (EC50) values for IL-1β-induced proliferation via CDH11-mediated β-catenin-dependent, total β-catenin-dependent and β-catenin-independent signalling were 0.0015, 0.016 and 0.18 ng/ml, respectively. Blocking CDH11 ligation with a CDH11-neutralizing antibody did not decrease IL-1β-induced proliferation.
Conclusions
CDH11-mediated β-catenin signalling was 42% involved in IL-1β-induced proliferation and had the highest susceptibility to IL-1β among the proliferative signallings analysed in this study. The mode of action for CDH11 during the cell proliferation was likely associated with a pool of β-catenin protein. In contrast, CDH11 and β-catenin were not involved in TNF-α-induced RA-SFC proliferation.
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Affiliation(s)
- Ryosuke Yoshioka
- Faculty of Exploratory Pharmacology, Asubio Pharma Co., Ltd., Kobe, Japan
| | - Yasuhiro Kita
- Faculty of Exploratory Pharmacology, Asubio Pharma Co., Ltd., Kobe, Japan
| | - Asako Nagahira
- Faculty of Drug Discovery Technology, Asubio Pharma Co., Ltd., Kobe, Japan
| | - Atsushi Manno
- Faculty of Exploratory Pharmacology, Asubio Pharma Co., Ltd., Kobe, Japan
| | - Naoyuki Makita
- Faculty of Exploratory Pharmacology, Asubio Pharma Co., Ltd., Kobe, Japan
| | - Urara Tomita
- Faculty of Exploratory Pharmacology, Asubio Pharma Co., Ltd., Kobe, Japan
| | - Masao Murakawa
- Faculty of Exploratory Pharmacology, Asubio Pharma Co., Ltd., Kobe, Japan
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Karpus ON, Kiener HP, Niederreiter B, Yilmaz-Elis AS, van der Kaa J, Ramaglia V, Arens R, Smolen JS, Botto M, Tak PP, Verbeek JS, Hamann J. CD55 deposited on synovial collagen fibers protects from immune complex-mediated arthritis. Arthritis Res Ther 2015; 17:6. [PMID: 25596646 PMCID: PMC4325944 DOI: 10.1186/s13075-015-0518-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 01/06/2015] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION CD55, a glycosylphosphatidylinositol-anchored, complement-regulating protein (decay-accelerating factor), is expressed by fibroblast-like synoviocytes (FLS) with high local abundance in the intimal lining layer. We here explored the basis and consequences of this uncommon presence. METHODS Synovial tissue, primary FLS cultures, and three-dimensional FLS micromasses were analyzed. CD55 expression was assessed by quantitative polymerase chain reaction (PCR), in situ hybridization, flow cytometry, and immunohistochemistry. Reticular fibers were visualized by Gomori staining and colocalization of CD55 with extracellular matrix (ECM) proteins by confocal microscopy. Membrane-bound CD55 was released from synovial tissue with phospholipase C. Functional consequences of CD55 expression were studied in the K/BxN serum transfer model of arthritis using mice that in addition to CD55 also lack FcγRIIB (CD32), increasing susceptibility for immune complex-mediated pathology. RESULTS Abundant CD55 expression seen in FLS of the intimal lining layer was associated with linearly oriented reticular fibers and was resistant to phospholipase C treatment. Expression of CD55 colocalized with collagen type I and III as well as with complement C3. A comparable distribution of CD55 was established in three-dimensional micromasses after ≥3 weeks of culture together with the ECM. CD55 deficiency did not enhance K/BxN serum-induced arthritis, but further exaggerated disease activity in Fcgr2b (-/-) mice. CONCLUSIONS CD55 is produced by FLS and deposited on the local collagen fiber meshwork, where it protects the synovial tissue against immune complex-mediated arthritis.
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Affiliation(s)
- Olga N Karpus
- Departments of Experimental Immunology, Internal Medicine, and Genetics, Room K0-140, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Hans P Kiener
- Department of Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna General Hospital, Währinger Gürtel 18-20, A-1090, Vienna, Austria.
| | - Birgit Niederreiter
- Department of Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna General Hospital, Währinger Gürtel 18-20, A-1090, Vienna, Austria.
| | - A Seda Yilmaz-Elis
- Departments of Human Genetics and Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Jos van der Kaa
- Departments of Human Genetics and Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Valeria Ramaglia
- Departments of Experimental Immunology, Internal Medicine, and Genetics, Room K0-140, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - Ramon Arens
- Departments of Human Genetics and Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Josef S Smolen
- Department of Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna General Hospital, Währinger Gürtel 18-20, A-1090, Vienna, Austria.
| | - Marina Botto
- Centre for Complement & Inflammation Research, Department of Medicine, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
| | - Paul P Tak
- Departments of Experimental Immunology, Internal Medicine, and Genetics, Room K0-140, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
- GlaxoSmithKline Pharmaceuticals Research and Development, Gunnels Wood Road, Stevenage, SG1 2NY, UK.
| | - J Sjef Verbeek
- Departments of Human Genetics and Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Jörg Hamann
- Departments of Experimental Immunology, Internal Medicine, and Genetics, Room K0-140, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
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Sieghart D, Liszt M, Wanivenhaus A, Bröll H, Kiener H, Klösch B, Steiner G. Hydrogen sulphide decreases IL-1β-induced activation of fibroblast-like synoviocytes from patients with osteoarthritis. J Cell Mol Med 2014; 19:187-97. [PMID: 25312962 PMCID: PMC4288362 DOI: 10.1111/jcmm.12405] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 07/18/2014] [Indexed: 12/30/2022] Open
Abstract
Balneotherapy employing sulphurous thermal water is still applied to patients suffering from diseases of musculoskeletal system like osteoarthritis (OA) but evidence for its clinical effectiveness is scarce. Since the gasotransmitter hydrogen sulphide (H2S) seems to affect cells involved in degenerative joint diseases, it was the objective of this study to investigate the effects of exogenous H2S on fibroblast-like synoviocytes (FLS), which are key players in OA pathogenesis being capable of producing pro-inflammatory cytokines and matrix degrading enzymes. To address this issue primary FLS derived from OA patients were stimulated with IL-1β and treated with the H2S donor NaHS. Cellular responses were analysed by ELISA, quantitative real-time PCR, phospho-MAPkinase array and Western blotting. Treatment-induced effects on cellular structure and synovial architecture were investigated in three-dimensional extracellular matrix micromasses. NaHS treatment reduced both spontaneous and IL-1β-induced secretion of IL-6, IL-8 and RANTES in different experimental settings. In addition, NaHS treatment reduced the expression of matrix metallo-proteinases MMP-2 and MMP-14. IL-1β induced the phosphorylation of several MAPkinases. NaHS treatment partially reduced IL-1β-induced activation of several MAPK whereas it increased phosphorylation of pro-survival factor Akt1/2. When cultured in spherical micromasses, FLS intentionally established a synovial lining layer-like structure; stimulation with IL-1β altered the architecture of micromasses leading to hyperplasia of the lining layer which was completely inhibited by concomitant exposure to NaHS. These data suggest that H2S partially antagonizes IL-1β stimulation via selective manipulation of the MAPkinase and the PI3K/Akt pathways which may encourage development of novel drugs for treatment of OA.
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Affiliation(s)
- Daniela Sieghart
- Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Cluster for Rheumatology, Balneology and Rehabilitation, Institute for Rheumatology and Balneology, Vienna-Oberlaa, Austria
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