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Abstracts tagged "phagocytosis and systemic lupus erythematosus (SLE)"

  • Abstract Number: 2844 • ACR/ARHP Annual Meeting 2014

    Intracellular Complement C3 Is Exposed on the Cell Surface upon Apoptosis Induction and Participates in the Clearance of Apoptotic Cells By Phagocytes

    Lucrezia Colonna1, Christian Lood1, YuFeng Peng2, Xizhang Sun3, Lena Tanaka3, Sandip Panicker4 and Keith B. Elkon3, 1Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, 2Rheumatology, University of Washington, Seattle, WA, 3Division of Rheumatology, University of Washington, Seattle, WA, 4True North Therapeutics, South San Francisco, CA

    Background/Purpose The complement system has been viewed as a predominantly serum-derived host defense mechanism with multiple functions, including clearance of apoptotic cells. Defective function of…
  • Abstract Number: 2544 • ACR/ARHP Annual Meeting 2013

    Serum Mediated Phagocytosis Of Necrotic Material By Polymorphonuclear Leukocytes May Be Used As a Tool To Predict Clinical Manifestations In Systemic Lupus Erythematosus

    Michele Compagno1, Birgitta Gullstrand2, Andreas Jönsen3, Lennart Truedsson2, Gunnar Sturfelt4 and Anders A. Bengtsson3, 1Department of clinical sciences - Rheumatology, Lund University, Lund, Sweden, 2Department of Laboratory Medicine, Section of Microbiology, Immunology and Glycobiology, Lund University, Lund, Sweden, 3Department of Clinical Sciences, Section of Rheumatology, Lund University, Lund, Sweden, 4Department of Clinical Sciences Lund, Section of Rheumatology, Lund University, Lund, Sweden

    Background/Purpose: Polymorphonuclear (PMNs) leukocytes with engulfed necrotic cell material (NCM), as formerly used in the LE-cell test, are frequently seen in SLE and associated to…
  • Abstract Number: 2526 • ACR/ARHP Annual Meeting 2012

    Bruton′s Tyrosine Kinase and Calreticulin: A Novel Interaction with Implications for Inflammatory and Autoimmune Disease

    Jennifer C. Byrne1, Joan Ní Gabhann1, Kevin Stacey1, Barbara M. Coffey1, Eoghan M. McCarthy2, Warren Thomas3, Eamonn Molloy4, Grainne M. Kearns5 and Caroline Jefferies1, 1Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland, 2Rheumatology, Beaumont Hospital, Dublin, Ireland, 3Molecular Medicine, Royal College of Surgeons in Ireland, Dublin 9, Ireland, 4Rheumatology, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland, 5Rheumatology Department, Beaumont Hospital, Dublin, Ireland

    Background/Purpose: Bruton’s Tyrosine Kinase (Btk) regulates innate immune responses downstream of multiple Toll-like receptors (TLRs), including TLR7. Given the role of TLR7 in driving type…
  • Abstract Number: 2250 • ACR/ARHP Annual Meeting 2012

    A Clinical Analysis of Adult Patients with Autoimmune- and Infection-Associated Hemophagocytic Lymphohistiocytosis

    Min W. So1, Bon S. Koo1, You J. Kim1, Yong-G Kim1, Wook J. Seo2, Chang-K Lee1 and Bin Yoo1, 1Division of Rheumatology, Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea, 2Internal Medicine, Seoul Veterans Hospital, Seoul, South Korea

    Background/Purpose: Hemophagocytic lymphohistiocytosis (HLH) is a rare but potentially life-threatening disease. Secondary HLH is associated with various clinical conditions, including infections, malignancies, and autoimmune diseases.…

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