ACR Meeting Abstracts

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Abstracts tagged "Neutrophil Extracellular Traps"

  • Abstract Number: 31 • 2019 ACR/ARP Annual Meeting

    Regulation of Neutrophil Extracellular Traps by Apremilast (phosphodiesterase 4 Inhibition)

    Shane van Breda1, Simona Rossi 1 and Paul Hasler 2, 1University Hospital Basel, Department of Biomedicine, Basel, Switzerland, 2Kantonsspital Aarau, Department of Rheumatology, Aarau, Switzerland

    Background/Purpose: Increased propensity for neutrophil extracellular trap generation has been described in autoimmune diseases such as rheumatoid arthritis. Neutrophil extracellular traps are thought to contribute…
  • Abstract Number: 489 • 2019 ACR/ARP Annual Meeting

    S100A11 (calgizzarin) Is Released During Neutrophil Extracellular Traps (NETs) Formation in Rheumatoid Arthritis (RA)

    Adéla Navrátilová1, Jiří Baloun 2, Hana Hulejová 2, Karel Pavelka 3, Jiří Vencovský 3, Ladislav Senolt 3 and Lucie Andrés Cerezo 1, 1Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, 2Institute of Rheumatology, Prague, Czech Republic, 3Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Prague, Czech Republic, Prague 2, Czech Republic

    Background/Purpose: S100A11 protein, a member of S100 family, has been associated with several autoimmune inflammatory conditions such as rheumatoid arthritis (RA). Moreover, its pro-inflammatory effect…
  • Abstract Number: 1226 • 2019 ACR/ARP Annual Meeting

    Neutrophil Activation Identifies Patients with Active Polyarticular Gout – a Role for Neutrophil Biomarkers in Monitoring Gout Disease Activity and Severity

    Daisy Vedder 1, Martijn Gerritsen 1, Mike Nurmohamed 2, Ronald van Vollenhoven 3 and Christian Lood4, 1Amsterdam Rheumatology & immunology Center / Reade, Amsterdam, Netherlands, 2Amsterdam Rheumatology and immunology Center location Reade and Amsterdam UMC location VU medical center, Amsterdam, Netherlands, 3Amsterdam Rheumatology and Immunology Center ARC, Amsterdam, the Netherlands, Amsterdam, Netherlands, 4University of Washington, Seattle, WA

    Background/Purpose: Neutrophils are key immune cells participating in host defense through several mechanisms, including the formation of neutrophil extracellular traps (NETs). Excessive neutrophil activation has…
  • Abstract Number: 1227 • 2019 ACR/ARP Annual Meeting

    A Neutrophil Signature Is Strongly Associated with Cardiovascular Risk in Gout

    Daisy Vedder 1, Martijn Gerritsen 1, Mike Nurmohamed 2, Ronald van Vollenhoven 3 and Christian Lood4, 1Amsterdam Rheumatology & immunology Center / Reade, Amsterdam, Netherlands, 2Amsterdam Rheumatology and immunology Center location Reade and Amsterdam UMC location VU medical center, Amsterdam, Netherlands, 3Amsterdam Rheumatology and Immunology Center ARC, Amsterdam, the Netherlands, Amsterdam, Netherlands, 4University of Washington, Seattle, WA

    Background/Purpose: Patients with gout have an increased cardiovascular morbidity and mortality, not fully explained by traditional cardiovascular risk factors. Xanthine oxidase-induced oxidative stress, increased lipid…
  • Abstract Number: 1827 • 2019 ACR/ARP Annual Meeting

    Clinical Implications of Neutrophil Extracellular Traps in Systemic Lupus Erythematosus

    Stanley Moore 1, Hsin-Hsuan Juo 1, Christoffer Nielsen 2, Helena Tyden 3, Anders Bengtsson 3 and Christian Lood1, 1University of Washington, Seattle, 2Statens Serum Institut, Copenhagen, Denmark, 3Lund University, Lund, Sweden

    Background/Purpose: Neutrophil activation, including formation of neutrophil extracellular traps (NETs), is essential in host defense. However, NET formation has also been linked to inflammation and…
  • Abstract Number: 2789 • 2019 ACR/ARP Annual Meeting

    Neutrophil Extracellular Traps Induce Tissue-Invasive Macrophages in Granulomatosis with Polyangiitis Dominated by Ear, Nose and Throat Manifestations

    Mitsuhiro Akiyama1, Nour Ibrahim 2, Markus Zeisbrich 1, Peter Hwang 1, Jorg Goronzy 1 and Cornelia Weyand 1, 1Stanford University, Stanford, CA, 2Stanford University, Stanford University

    Background/Purpose: Granulomatosis with polyangiitis (GPA) is a small vessel vasculitis characterized by acute and chronic tissue destruction in the nose, sinuses, lungs and kidneys. In…
  • Abstract Number: 2790 • 2019 ACR/ARP Annual Meeting

    Platelet Mediates Neutrophil Extracellular Traps Formation via TLR Signaling in ANCA-associated Vasculitis

    Kotaro Matsumoto1, Hidekata Yasuoka 2, Katsuya Suzuki 1 and Tsutomu Takeuchi 1, 1Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan, 2Division of Rheumatology, Department of Internal Medicine, Fujita Health University School of Medicine, Shinjuku-ku, Aichi, Japan

    Background/Purpose: Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is an autoimmune disease that affects small- to medium-sized blood vessels and causes vascular inflammation and multiple organ…
  • Abstract Number: 2811 • 2019 ACR/ARP Annual Meeting

    The IRE1α Pathway Mediates Neutrophil Stress and NETosis in Lupus

    Gautam Sule1, Basel Abuaita 1, Paul Steffes 1, Kristen Gilley 1, Andrew Fernandes 1, Mary O’Riordan 1 and Jason Knight 2, 1University of Michigan, Ann Arbor, MI, 2Division of Rheumatology, Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI

    Background/Purpose: Immune complex (IC)-activated neutrophils appear to amplify inflammation in lupus through the release of neutrophil extracellular traps (NETosis).  There is presently no consensus as…
  • Abstract Number: 1456 • 2018 ACR/ARHP Annual Meeting

    Neutrophil Activation Is Associated with Disease Activity and Predicts Development of Erosive Disease and Extra Articular Manifestations in Rheumatoid Arthritis

    Mary Bach1,2, Tiffany Pan3, J. Lee Nelson3,4 and Christian Lood5, 1VA Puget Sound Health Care System, Seattle, WA, 2Division of Rheumatology, University of Washington, Seattle, WA, 3Fred Hutchinson Cancer Research Center, Seattle, WA, 4Division of Rheumatology, University of Washington, SEATTLE, WA, 5Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA

    Background/Purpose: Neutrophil activation is associated with inflammation and autoimmunity, including rheumatoid arthritis (RA), where neutrophil infiltration into joints participates in tissue destruction and development of…
  • Abstract Number: 2026 • 2018 ACR/ARHP Annual Meeting

    Calcium Crystal-Mediated Netosis in Juvenile Dermatomyositis and Anti-RNP+ Overlap Syndrome with Skin Involvement

    Christian Lood1, Gabrielle A. Morgan2, Marisa Klein-Gitelman3, Megan L. Curran4 and Lauren M. Pachman5, 1Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, 2Cure JM Program of Excellence in Myositis Research, Stanley Manne Children’s Research Institute, affiliated with Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, 3Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, 4Section of Rheumatology, Children's Hospital of Colorado, Denver, CO, 5Cure JM Program of Excellence in Juvenile Myositis Research, Stanley Manne Children’s Research Institute, affiliated with Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL

    Background/Purpose: Neutrophils are key immune cells participating in host defense through several mechanisms, including the formation of neutrophil extracellular traps (NETs). Although beneficial from a…
  • Abstract Number: 2116 • 2018 ACR/ARHP Annual Meeting

    Neutrophil Extracellular Trap Formation Is Dependent on Disease Activity in Systemic Lupus Erythematosus: Determination Using a Flow Cytometry-Based Assay

    Sen Hee Tay1, Olga Zharkova2, Hui Yin Lee3, Shubhita Tripathi4, Wei Yee Ong5, Aisha Lateef6, Paul MacAry7, Lina Lim2, John Edward Connolly8 and Anna-Marie Fairhurst3, 1Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore, Singapore, 2Physiology, National University of Singapore, Singapore, Singapore, 3Singapore Immunology Network, Agency for Science, Technology and Research, Singapore, Singapore, 4National University of Singapore, Singapore, Singapore, 5Institute for Molecular and Cellular Biology, Agency for Science, Technology and Research, Singapore, Singapore, 6Medicine, Division of Rheumatology, National University Hospital of Singapore, Singapore, Singapore, 7Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore, 8Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore

    Background/Purpose: Neutrophil extracellular traps (NETs) are composed of decondensed DNA that is released during an active cell death program is known as NETosis.  To date,…
  • Abstract Number: 2124 • 2018 ACR/ARHP Annual Meeting

    Bacterial Biofilm Product Curli/Edna Induces NETs and Serum Anti-Curli/Edna Levels Correlate with Bacteriuria and Lupus Activity

    Ryan Pachucki1, Chelsea Corradetti2, Stefania Gallucci3, Cagla Tukel3, Sarah Tursi3, Laura Nicastro3, Lynne Kohler2, Yaj Ghadiali4, Laurie Kilpatrick5 and Roberto Caricchio1, 1Medicine Rheumatology, Lewis Katz School of Medicine, Philadelphia, PA, 2Rheumatology, Lewis Katz School of Medicine, Philadelphia, PA, 3Microbiology and Immunology, Lewis Katz School of Medicine, Philadelphia, PA, 4Medicine, Lewis Katz School of Medicine, Philadelphia, PA, 5Temple Lung Center, Lewis Katz School of Medicine, Philadelphia, PA

    Background/Purpose: Infections are a major contributor to lupus disease. We have previously demonstrated that bacterial amyloid curli, produced by E.coli, can accelerate disease in mouse…
  • Abstract Number: 11 • 2018 ACR/ARHP Annual Meeting

    PAD4-Independent Interaction of ACPA with Nuclear Antigens in Apoptotic Cells and Neutrophil Extracellular Traps (NETs) Defines a Subset of Autoantibodies

    Gustaf Wigerblad1, Katy A. Lloyd1, Peter Sahlström2, Karine Chemin2, Johanna Steen2, Philip J. Titcombe2,3, Diana Zhou2, Ragnhild Stålesen1, Bianka Marklein4, Elena Ossipova2, Johan Rönnelid5, Luca Piccoli6, Antonio Lanzavecchia6, Daniel L. Mueller3, Karl Skriner4, Lars Klareskog2, Fredrik Wermeling1, Vivianne Malmström2 and Caroline Grönwall7, 1Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, 2Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, 3The Center for Immunology, Dept. of Medicine, University of Minnesota Medical School, Minneapolis, MN, 4Dept. of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany, 5Dept. of Immunology Genetics and Pathology, Uppsala University, Uppsala, Sweden, 6Università della Svizzera italiana, Institute for Research in Biomedicine, Bellinzona, Switzerland, 7Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden

    Background/Purpose: Rheumatoid arthritis (RA) associated anti-citrullinated protein autoantibodies (ACPA) bind a wide range of citrullinated proteins with high cross-reactivity. Recent findings suggest that certain, but…
  • Abstract Number: 77 • 2018 ACR/ARHP Annual Meeting

    Single Nucleotide Polymorphism in the Gene Encoding Peptidylarginine Deiminase 4 Correlates with Reduced Neutrophil Extracellular Traps and Anti-Histone Antibodies in Rheumatoid Arthritis

    Aisha M. Mergaert1, Mandar Bawadekar2, Thai Q. Nguyen1, Steven J. Schrodi3,4 and Miriam A. Shelef2,5, 1University of Wisconsin - Madison, Madison, WI, 2Department of Medicine, Division of Rheumatology, University of Wisconsin - Madison, Madison, WI, 3Center for Precision Medicine Research, Marshfield Clinic Research Institute, Marshfield, WI, 4Computation and Informatics in Biology and Medicine, University of Wisconsin - Madison, Madison, WI, 5William S. Middleton Memorial Veterans Hospital, Madison, WI

    Background/Purpose: In neutrophils, peptidylarginine deiminase 4 (PAD4) citrullinates histones allowing chromatin unraveling and neutrophil extracellular trap (NET) formation. NETs are increased and display proteins targeted…
  • Abstract Number: 106 • 2018 ACR/ARHP Annual Meeting

    Highly Elevated Levels of Anti-Mitochondrial Antibodies in Systemic Lupus Erythematosus and Rheumatoid Arthritis

    Richard Moore1 and Christian Lood2, 1Division of Rheumatology, University of Washington, Seattle, WA, 2Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA

    Background/Purpose: We recently described the phenomenon in systemic lupus erythematosus (SLE) in which mitochondria are extruded into the extracellular space during formation of neutrophil extracellular…
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All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

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