Abstracts tagged "Fibroblasts"

Abstract Number: 2135 • 2015 ACR/ARHP Annual Meeting
miRNA-223 Delivery to Synovial Fibroblasts Via Monocyte-Derived Extracellular Vesicles Promotes Their Proliferation
Florian M.P. Meier¹, Derek S. Gilchrist¹, Derek Baxter², Diane Vaughan¹, Margaret Mullin³, David W. McCarey⁴, Pawel Herzyk⁵, Julie Galbraith⁵, Donna McIntyre¹, Russka Shumnalieva⁶, Ulf Müller-Ladner⁷, Iain B. McInnes⁸ and Mariola Kurowska-Stolarska¹, ¹Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom, ²Department of Rheumatology, University Hospital Ayr, Ayr, United Kingdom, ³School of Life Sciences, University of Glasgow, Glasgow, United Kingdom, ⁴Glasgow Royal Infirmary, Glasgow, United Kingdom, ⁵Polyomics Facility, Institute of Molecular Cell and Systems Biology, University of Glasgow, Glasgow, United Kingdom, ⁶Department of Internal Medicine, Clinic of Rheumatology, Sofia, Bulgaria, ⁷Internal Medicine and Rheumatology, Justus-Liebig-University of Giessen, Kerckhoff-Klinik, Bad Nauheim, Germany, ⁸Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary Medicine and Life Sciences, University of Glasgow, Glasgow, United Kingdom
Background/Purpose: Recently, it was shown that extracellular vesicles (EV) convey microRNAs (miR) from platelets to endothelial cells1and regulate recipient cell gene expression. Interaction of synovial…
Abstract Number: 2137 • 2015 ACR/ARHP Annual Meeting
Critical Role of Fibroblast-like Synoviocytes Glycolytic Metabolism in Rheumatoid Arthritis
Ricard Garcia-Carbonell¹, Ajit Divakaruni¹, Alessia Lodi², Ildefonso Vicente-Suarez³, Hilde Cheroutre⁴, Gerry Boss¹, Arindam Saha¹, Stefano Tiziani⁵, Anne Murphy⁶, Gary S. Firestein⁷ and Monica Guma⁶, ¹University of California, San Diego, La Jolla, CA, ²nutritional Sciences, University of Texas at Austin, Austin, TX, ³LIAI, La Jolla, CA, ⁴Autoimmune Research, LIAI, La Jolla, CA, ⁵Nutritional Sciences, University of Texas at Austin, Austin, TX, ⁶Pharmacology, University of California, San Diego, La Jolla, CA, ⁷Division of Rheumatology, Allergy and Immunology, University of California, San Diego, La Jolla, CA
Background/Purpose: Glucose metabolism is altered not only in tumor cell growth but also in immune cells on activation. However, little is known about glucose metabolism…
Abstract Number: 12 • 2015 ACR/ARHP Annual Meeting
Delta-like 1 Enhances the Production of Pro-Inflammatory Mediators By Fibroblast-like Synoviocytes
Chiyoko Sekine, Department of Clinical Research Medicine, Teikyo University School of Medicine, Tokyo, Japan
Background/Purpose: Notch signaling is known to regulate cell fate decision and differentiation during embryonic and post-natal development. I have been reported that a Notch ligand…
Abstract Number: 2446 • 2015 ACR/ARHP Annual Meeting
Synovial Fluid Proteins Differentiate Patients with Oligoarticular Juvenile Idiopathic Arthritis Who Are Destined to Extend from Those Who Will Remain Persistent in Course
AnneMarie C. Brescia¹, Megan M. Simonds², Kathleen E. Sullivan³ and Carlos D. Rose⁴, ¹Pediatric Rheumatology, Nemours A.I. duPont Hospital for Children, Wilmington, DE, ²Nemours Research, Nemours/AI duPont Hospital for Children, Wilmington, DE, ³Allergy Immunology, The Children's Hospital of Philadelphia, Philadelphia, PA, ⁴Pediatrics, Nemours A.I. duPont Hospital for Children, Division of Pediatric Rheumatology, Thomas Jefferson University, Wilmington, DE
Background/Purpose: Children with oligoarticular juvenile idiopathic arthritis (JIA) who have an extended course (recruitment of 5 or more joints after 6 months of disease) have…
Abstract Number: 21 • 2015 ACR/ARHP Annual Meeting
Pseudostarvation Using the AMPK Activator Metformin Downregulates Inflammation in Rheumatoid Arthritis Synovial Tissue
Lorna Gallagher¹, Ursula Fearon², Douglas J. Veale³, David Kane⁴, Luke A. O'Neill⁵ and Ronan Mullan⁴, ¹Clinical Medicine, School of Medicine, Trinity College Dublin, Dublin, Ireland, ²St. Vincent's University Hospital, Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, Dublin 4, Ireland, ³St Vincent's University Hospital, Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, Dublin 4, Ireland, ⁴Department of Rheumatology, Tallaght Hospital, TCD, Dublin 24, Ireland, ⁵Inflammation Research, School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
Background/Purpose: AMP-activated protein kinase (AMPK) is a highly conserved, regulator of cellular energy status. In inflammation, AMPK inactivation is associated with increased glucose consumption through…
Abstract Number: 2515 • 2015 ACR/ARHP Annual Meeting
MEK5/ERK5, a Lynchpin of Human Cardiac Fibroblast Transdifferentiation to a Scarring Phenotype in Autoimmune Congenital Heart Block
Andrew Markham¹, Robert Clancy², Mukundan Attur³ and Jill P. Buyon², ¹Medicine, New York University School of Medicine, New York, NY, ²Medicine, Division of Rheumatology, New York University School of Medicine, New York, NY, ³Rheumatology Research, NYU - Hospital for Joint Diseases, New York, NY
Background/Purpose: Transplacental passage of maternal autoantibodies (Ab) reactive with the SSA/Ro-SSB/La ribonucleoprotein complex is associated with the development of cardiac injury in the fetus passively…
Abstract Number: 1166 • 2015 ACR/ARHP Annual Meeting
Expression and Function of Proviral Integration Site for Moloney Murine Leukemia Virus 1 (PIM-1) Kinase in Rheumatoid Arthritis Fibroblast-like Synoviocytes
Yong Seok Choi¹, You Jung Ha², Jaehyung Hur³, Eun Ha Kang⁴, Yeong Wook Song⁵ and Yun Jong Lee², ¹Internal Medicine, Seoul National University Bundang Hospital, Seongnam-si, South Korea, ²Division of Rheumatology, Department of Internal Medicine,Seoul National University Bundang Hospital, Seongnam, South Korea, ³Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam-si, South Korea, ⁴Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam-si, South Korea, ⁵Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
Background/Purpose: The Proviral Integration site of Moloney murine leukemia virus (PIM) kinases are important mediators of cell survival and considered as attractive targets in cancer…
Abstract Number: 2549 • 2015 ACR/ARHP Annual Meeting
Characterizing the RPTPσ Mediated Proteoglycan Switch As a Target for Rheumatoid Arthritis Therapy
Karen M. Doody¹, Stephanie M. Stanford¹, Mattias N. D. Svensson¹, Cristiano Sacchetti¹, Gary S. Firestein², A. Radu Aricescu³ and Nunzio Bottini^1,4, ¹Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ²Division of Rheumatology, Allergy and Immunology, University of California, San Diego, La Jolla, CA, ³Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom, ⁴Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA
Background/Purpose: RPTPσ (gene PTPRS) is a protein tyrosine phosphatase that binds heparan sulfate- and chondroitin sulfate-containing proteoglycans with its extracellular immunoglobulin domains 1 and…
Abstract Number: 1169 • 2015 ACR/ARHP Annual Meeting
Crossregulatory Mechanisms Between Synovial Fibroblasts and Macrophages Relevant in RA Pathogenesis
Jennifer Ding¹, Lionel B. Ivashkiv² and Laura T. Donlin¹, ¹Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, ²Medicine, Hospital for Special Surgery, New York, NY
Background/Purpose: Macrophages and synovial fibroblasts function as key drivers of inflammation in rheumatoid arthritis (RA). We have developed a co-culture system that aims to define…
Abstract Number: 2573 • 2015 ACR/ARHP Annual Meeting
Confirmatory Analysis of Methylome Signatures in Rheumatoid Arthritis Using an Independent Dataset
Rizi Ai¹, Deepa Hammaker², Wei Wang³ and Gary S. Firestein⁴, ¹University of California San Diego, La Jolla, CA, ²Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, La Jolla, CA, ³Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, ⁴Div of Rheumatology, UCSD School of Medicine, La Jolla, CA
Background/Purpose: Epigenetics can contribute to the pathogenesis of rheumatoid arthritis (RA). A DNA methylation signature that distinguishes RA fibroblast-like synoviocytes (FLS) from osteoarthritis (OA) FLS…
Abstract Number: 1367 • 2015 ACR/ARHP Annual Meeting
Fibroblast-like Synoviocytes Shape and Perpetuate the Inflammatory Immune Responses Associated with Antibiotic-Refractory Lyme Arthritis.
Klemen Strle¹, Robert Locchead², Annalisa Pianta³, Jameson T. Crowley³, Sheila Arvikar¹ and John Aversa⁴, ¹Division of Rheumatology, Allergy & Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, ²Rheumatology, Allery and Immunology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, ³Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA, ⁴Yale Medical Group, Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, CT
Background/Purpose: Antibiotic-refractory Lyme arthritis is defined as persistent synovitis for months to years after antibiotic therapy for Borrelia burgdorferi, the causative agent of Lyme disease.…
Abstract Number: 2710 • 2015 ACR/ARHP Annual Meeting
Necrox-7 Inhibits Cell Aggressiveness By Suppressing of NF-Kappa B Activation and Reactive Oxygen Species Generation in Human Rheumatoid Arthritis Fibroblast-like Synoviocytes
Hyun Jung Yoo^1,2, Jin Kyun Park², Eun Young Lee², Eun Bong Lee² and Yeong Wook Song^2,3, ¹Department of Molecular Medicine and Biopharmaceutical Sciences, BK21 plus Graduate School of Convergence Science and Technology, and College of Medicine or College of Pharmacy, Seoul National University, Seoul, South Korea, ²Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea, ³Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine Seoul National University, Seoul, South Korea
Background/Purpose: Rheumatoid arthritis (RA) is characterized by hyperplastic synovial pannus tissue, which mediates destruction of cartilage and bone. Fibroblast-like synoviocytes (FLS) are a key component…
Abstract Number: 1616 • 2015 ACR/ARHP Annual Meeting
Identification of Genes Regulating TRAIL-Induced Apoptosis in Rheumatoid Arthritis Fibroblasts-like Synoviocytes (RA FLS)
Rachel Audo^1,2, Bernard Combe^3,4, Michael Hahne⁵ and Jacques Morel⁶, ¹Rheumatology, Teaching Hospital of Lapeyronie, Montpellier, France, ²IGMM, CNRS UMR5535, Montpellier, Montpellier, France, ³Department of Rheumatology, Lapeyronie Hospital, Montpellier, France, ⁴Montpellier University, Montpellier, France, ⁵IGMM-CNRS UMR5535, Montpellier, France, ⁶Department of rheumatology, Lapeyronie Hospital and Montpellier University, Montpellier, France
Background/Purpose: We previously described that sensitivity to TRAIL-induced apoptosis varied in rheumatoid arthritis (RA) fibroblasts-like-synoviocytes (FLS) from one patient to another, and was inversly correlated…
Abstract Number: 2714 • 2015 ACR/ARHP Annual Meeting
Rheumatoid Arthritis Synovial Fibroblast Potentiates Mast Cell Degranulation and Migration Independent of Cell-to-Cell Contact
Hee-suk Lim¹, Jiyong Choi^2,3, Yeong Wook Song⁴ and Kichul Shin¹, ¹Division of Rheumatology, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, South Korea, ²Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea, ³Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea, ⁴Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
Background/Purpose: A number of studies have shown that synovial mast cells (MCs) are activated, and elicit a pro-inflammatory role in rheumatoid arthritis (RA). Synovial MCs…
Abstract Number: 1627 • 2015 ACR/ARHP Annual Meeting
HIF-1alpha Knockdown Down-Regulates Glycolytic Metabolism and Induces Rheumatoid Synovial Fibroblast Cell Death
Manuel J. Del Rey¹, Alicia Usategui¹, Álvaro Valín¹, María Sánchez-Aragó², José M. Cuezva², Carmen M. García-Herrero¹, María Galindo¹, Juan D. Cañete³, Francisco J. Blanco⁴, Gabriel Criado¹ and Jose L. Pablos¹, ¹Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain, ²Departamento de Biología Molecular, Centro de Biología Molecular Severo Ochoa, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Investigación Hospital 12 de Octubre, Universidad Autónoma de Madrid, Madrid, Spain, ³Unitat d’Artritis, Servei de Reumatologia, Hospital Clínic de Barcelona and Institut d’Investigacions Biomèdiques August Pí i Sunyer, Barcelona, Spain, ⁴Laboratorio de Investigación Osteoarticular y del Envejecimiento, Instituto de Investigación Biomédica de A Coruña, INIBIC, A Coruña, Spain
Background/Purpose: Intense synovial fibroblast (SF) hyperplasia contributes to the chronic inflammation and osteoarticular destruction that characterizes rheumatoid arthritis (RA). Hypoxia-inducible factor 1α (HIF-1α) plays a…

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