Abstracts Archive - Page 1072 of 2425 - ACR Meeting Abstracts

Abstract Number: 1011 • 2018 ACR/ARHP Annual Meeting
Tissue Resident Macrophages Establish a Niche That Limits Monocyte to Macrophage Differentiation in Synovial Tissue during Homeostasis
Qi Quan Huang¹, Renee E. Doyle², Alexander Misharin³, Shang-Yang Chen⁴, Deborah R. Winter⁵ and Richard M. Pope², ¹Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ³Medicine/pulmonary, Northwestern University Feinberg School of Medicine, Chicago, IL, ⁴Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, chicago, IL, ⁵Department of Medicine Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: Monocytes and Macrophages play critical roles in immune homeostasis and host defense. Recent studies identified that macrophages are highly heterogeneous in terms of location,…
Abstract Number: 1012 • 2018 ACR/ARHP Annual Meeting
Inhibition of Inflammation and Oxidative Stress in Systemic Sclerosis (SSc) Macrophages
Rajan Bhandari¹, Michael Ball², Saemi Han², Kathleen Aren³, Mary A. Carns³, Monique Hinchcliff⁴, Michael L. Whitfield⁵, Karen Liby⁶ and Patricia A. Pioli⁷, ¹Geisel School of Medicine at Dartmouth, lebanon, NH, ²Geisel School of Medicine at Dartmouth, Lebanon, NH, ³Northwestern University, Feinberg School of Medicine Scleroderma Program, Chicago, IL, ⁴Rheumatology, Northwestern University, Chicago, IL, ⁵Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, NH, ⁶Michigan State University, East Lansing, MI, ⁷Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, NH
Background/Purpose: Systemic sclerosis (SSc) is a chronic autoimmune disease of unknown etiology that is characterized by vasculopathy, fibrosis, and inflammation. Our work and that of…
Abstract Number: 1013 • 2018 ACR/ARHP Annual Meeting
Circulating Hybrid M1/M2 Monocytes/Macrophages in Systemic Sclerosis Patients with Lung Involvement
Maurizio Cutolo¹, Amelia Chiara Trombetta², Veronica Tomatis³, Sabrina Paolino⁴, Carmen Pizzorni¹, Vanessa Smith⁵, Paola Contini⁶, Paola Montagna³, Renata Brizzolara² and Stefano Soldano³, ¹Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, San Martino Polyclinic Hospital, Genoa, Italy, Genoa, Italy, ²Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS Polyclinic San Martino, University of Genoa, Genoa, Italy, ³Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, IRCCS Polyclinic San Martino, University of Genoa, Genova, Italy, ⁴Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, San Martino Polyclinic Hospital, Genoa, Italy, Genova, Italy, ⁵Department of Rheumatology, Ghent University Hospital, Ghent, Belgium, ⁶Division of Clinical Immunology, Department of Internal Medicine, University of Genova, IRCCS Polyclinic San Martino, Genova, Italy, Genova, Italy
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune disease characterized by immune system alterations, vasculopathy and fibrosis [1]. SSc-related interstitial lung disease (ILD) represents a common…
Abstract Number: 1014 • 2018 ACR/ARHP Annual Meeting
Distinct Macrophage Phenotype and Bioenergetic Profiles in Rheumatoid Arthritis
Megan M. Hanlon¹, Mary Canavan¹, Trudy McGarry¹, Candice Low², Siobhan C. Wade¹, Douglas J. Veale² and Ursula Fearon¹, ¹Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ²Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin, Ireland
Background/Purpose: Synovial macrophages play a key role in RA disease progression, yet the diversity of macrophage subsets within the joint remains unknown. The concept of…
Abstract Number: 1015 • 2018 ACR/ARHP Annual Meeting
Rheumatoid Arthritis Peripheral CD14+ Monocytes Are Hyper-Inflammatory, Hyper-Glycolytic and Retain a Memory Bias Toward M1 Macrophages
Trudy McGarry¹, Megan M. Hanlon², Clare C. Cunningham³, Douglas J. Veale⁴ and Ursula Fearon⁵, ¹St. Vincent's University Hospital, Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin 4, Ireland, ²Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ³Molecular Rheumatology, Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ⁴Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin, Ireland, ⁵Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
Background/Purpose: Myeloid cells with a monocyte/macrophages phenotype are present in large numbers in the rheumatoid arthritis (RA) joint, significantly contributing to disease. This study aimed…
Abstract Number: 1016 • 2018 ACR/ARHP Annual Meeting
The Distinct Profile of Ly6clo Monocytes in the Murine Joint Compared with Those in Circulation Suggests a Unique Role in Inflammatory Arthritis
Anna B Montgomery¹, Philip J. Homan², Deborah R. Winter² and Harris Perlman³, ¹Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Department of Medicine Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ³Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: Populations of monocytes in mice are distinguishable by expression of Ly6c. Ly6chi monocytes are associated with pro-inflammatory responses, while Lyc6lo are involved in lining…
Abstract Number: 1017 • 2018 ACR/ARHP Annual Meeting
Autoantigen Pentraxin-3 Is an Inflammatory Cytokine Storms Suppressor By Switching Monocytes Pyroptosis to Apoptosis in a Complement-Dependent Manner in Rheumatoid Arthritis
Xuan Zhang¹ and Xunyao Wu², ¹Rheumatology, Peking Union Medical College Hospital, Beijing, China, ²Peking Union Medical College Hospital, beijing, China
Background/Purpose: A delayed diagnoses and therapy of ACPA (Anti cyclic citrullinated peptide antibody)-negative RA patients might be associated with effective serum biomarkers in clinic. Methods:…
Abstract Number: 1018 • 2018 ACR/ARHP Annual Meeting
Tofacitinib Impairs Monocyte-Derived Dendritic Cell Differentiation in Rheumatoid Arthritis and Psoriatic Arthritis.
Viviana Marzaioli¹, Mary Canavan¹, Achilleas Floudas¹, Siobhan C. Wade¹, Candice Low², Douglas J. Veale² and Ursula Fearon¹, ¹Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ²Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin, Ireland
Background/Purpose: Tofacinitib (Pfizer) is an oral Janus kinase inhibitor, recently approved for the treatment of rheumatoid arthritis (RA) and psoriatic arthritis (PsA). Although its mechanism…
Abstract Number: 1019 • 2018 ACR/ARHP Annual Meeting
Involvement of Mast Cells in the Pathogenesis of Sjögren’s Syndrome By Induction of Tissue Fibrosis Via Fibroblast Collagen Synthesis
Shinjiro Kaieda¹, Kyoko Fujimoto², Masaki Tominaga³, Masaki Okamoto⁴, Tomoaki Hoshino⁵ and Hiroaki Ida⁶, ¹Department of Medicine, *Division of Respirology, Neurology and Rheumatology, Kurume University School of Medicine, kurume, Japan, ²Division of Respirology, Neurology and Rheumatology, Kurume University School of Medicine, Kurume, Japan, ³Kurume University School of Medicine, Kurume, Japan, ⁴Medicine, Kurume University School of Medicine, Kurume, Japan, ⁵Department of Medicine, Division of Respirology, Neurology and Rheumatology, Kurume University School of Medicine, Kurume, Japan, ⁶Respiorogy, Neurology and Rheumatology, Kurume University School of Medicine, Kurume, Japan
Background/Purpose: There is an emerging view that mast cells may play a pivotal role in several inflammatory and autoimmune diseases. However, the role of mast…
Abstract Number: 1020 • 2018 ACR/ARHP Annual Meeting
Involvement of Toll-like-Receptor-9 Pathway on Natural Killer Cells in Systemic Lupus Erythematosus
Micheline Pha¹, Samra Ouaras², Noel Zahr³, Melissa PLANTIER², Alexis Mathian⁴, Vincent Vieillard², Zahir Amoura⁵ and Baptiste Hervier^6,7, ¹Department of Internal Medicine 2. Referal center for SLE/APS, Hôpital Pitié-Salpêtrière, AP-HP, UPMC Univ Paris 06 & French National Reference Center For Systemic Lupus and Antiphospholipid Syndrome, Paris, France, ²INSERM UMR-S 1135 & UPMC, Paris, France, ³Pitié Salpêtrière, Pharmacological, Pitié Salpêtrière, Paris, France, ⁴Université Pierre et Marie Curie, Sorbonne Paris Cité AP-HP, Service de Médecine Interne 2, Centre de Référence National pour le Lupus et le Syndrome des Antiphospholipides, institut E3M, Paris, France, Paris, France, ⁵Université Pierre et Marie Curie, Paris, France, ⁶INSERM UMR-1135 & UPMC, Paris, France, ⁷Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Paris, France
Background/Purpose: Natural killer (NK) cells participate in systemic lupus erythematosus (SLE) pathogenesis by promoting dendritic cell (DC) activation and/or interferon (IFN)g over-production. NK c ells…
Abstract Number: 1021 • 2018 ACR/ARHP Annual Meeting
Impact of TLR7 Ligation in RA Pathology
Sadiq Umar^1,2, Katrien Van Raemdonck^1,2, Karol Palasiewicz^1,2 and Shiva Shahrara¹, ¹Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, ²Jesse Brown VA Medical Center, Chicago, IL
Background/Purpose: Expression of Toll-like receptor 7 (TLR-7) is highly elevated in rheumatoid arthritis (RA) and osteoarthritis (OA) compared to normal (NL) synovial tissue lining and…
Abstract Number: 1022 • 2018 ACR/ARHP Annual Meeting
TNF-α Regulates Plasmacytoid Dendritic Cells By Suppressing IFN-α Production and Enhancing Th1 and Th17 Cell Differentiation
Antonios Psarras^1,2,3, Agne Antanaviciute⁴, Ian Carr⁴, Miriam Wittmann^1,2, Paul Emery^1,5, George C Tsokos⁶ and Edward M Vital^1,2, ¹Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, United Kingdom, ²NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom, ³Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA, ⁴Leeds Institute for Data Analytics, University of Leeds, Leeds, United Kingdom, ⁵Leeds Musculoskeletal Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom, ⁶Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
Background/Purpose: Human plasmacytoid dendritic cells (pDCs) play a vital role in modulating immune responses. pDCs can produce massive amounts of type I IFNs in response…
Abstract Number: 1023 • 2018 ACR/ARHP Annual Meeting
Plasmacytoid Dendritic Cells That Infiltrate the Lungs Produce Profibrotic Cytokines and Chemokines in Bleomycin-Induced Model of Systemic Sclerosis
Isela Valera¹ and Ram R. Singh², ¹Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, UCLA, Los Angeles, CA, ²UCLA, Los Angeles, CA
Background/Purpose: In bleomycin-induced model of systemic fibrosis and patients with systemic sclerosis, plasmacytoid DC (pDC) are unaffected or reduced systemically (spleen/peripheral blood) but they increase…
Abstract Number: 1024 • 2018 ACR/ARHP Annual Meeting
Unique Pattern of Lectin Pathway Complement Protein Levels in Axial Spondyloarthritis
Anne Troldborg^1,2,3, Steffen Thiel¹, Clara Mistegaard Joergensen⁴, Kristian Stengaard-Pedersen^3,5 and Anne Gitte Loft^3,6, ¹Biomedicine, Aarhus University, Aarhus, Denmark, ²clinical medicine, Aarhus University, Aarhus, Denmark, ³Rheumatology, Aarhus University Hospital, Aarhus, Denmark, ⁴Emergency Medicine, Regional Hospital Horsens, Horsens, Denmark, ⁵Clinical medicine, Aarhus University, Aarhus, Denmark, ⁶Clinical Medicine, Aarhus University, Aarhus, Denmark
Background/Purpose: Spondyloarthritis (SpA) represents a group of immune-mediated inflammatory diseases that exhibit overlapping clinical features, genetic predisposition and a not fully understood pathogenesis. Inflammation and…
Abstract Number: 1025 • 2018 ACR/ARHP Annual Meeting
MiR-146a a Key Player in Bone Metabolism
Victoria Saferding¹, Melanie Hofmann¹, Julia S. Brunner², Mihaela Militaru¹, Antonia Puchner¹, Silvia Hayer³, Gernot Schabbauer⁴, Melanie Timmen⁵, Richard Stange⁵, Josef S. Smolen⁶ and Stephan Blüml⁷, ¹Medical University of Vienna, Austria, Vienna, Austria, ²Vascular Biology and Thrombosis research, Medical University of Vienna, Austria, Vienna, Austria, ³Waehringer Guertel 18-20 A-A09, Medical University of Vienna, Austria, Vienna, Austria, ⁴Vascular Biology and Thrombosis research, Medical University of Vienna, Vienna, Austria, ⁵Institute for Experimental Muskuloskeletal Medicine, University Hospital Muenster, Muenster, Germany, ⁶Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, Vienna, Austria, ⁷Division of Rheumatology, Department of Internal Medicine III, Medical University Vienna, Vienna, Austria
Background/Purpose: Micro RNAs (miRNAs) play a crucial role in the regulation of bone metabolism. MiR-146a, an important anti-inflammatory miRNA, was found to negatively impact osteogenesis…

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