Abstracts tagged "neutrophils"

Abstract Number: 0356 • ACR Convergence 2021
The Role of Neutrophils in the Clinical Severity of Lupus Nephritis Patients with Concurrent Skin Disease
Lais Osmani, Sicong Shan, Zoe Chafouleas, Jason Pettus and Sladjana Skopelja-Gardner, Dartmouth Hitchcock Medical Center, Lebanon, NH
Background/Purpose: Skin disease affects >80% of lupus patients and has been linked to lupus nephritis (LN) flares. We recently found that skin inflammation caused by…
Abstract Number: 0384 • ACR Convergence 2021
A Tough Cell: The Argument for a Biomarker of Clinical and Imaging Outcomes in Spondyloarthritis: The Neutrophil Lymphocyte Ratio and the Platelet Lymphocyte Ratio
Rouhin Sen¹, Emmeline Kim², Elizabeth Cheng³, Kavya Ganuthula⁴, Meika Fang⁵, Gail Kerr⁶, Jessica Walsh⁷, Elizabeth Chang⁸, Siba Raychaudhuri⁹, Andreas Reimold¹⁰ and Liron Caplan¹¹, ¹University of Colorado School of Medicine/Rocky Mountain Regional Veterans Affairs Medical Center (VAMC), Denver, CO, ²University of Colorado School of Medicine, Aurora, CO, ³Rocky Mountain Regional VAMC, Aurora, CO, ⁴Rocky Mountain Regional VAMC/University of Colorado School of Medicine, Aurora, CO, ⁵David Geffen School of Medicine at UCLA/West Los Angeles Veterans Affairs Medical Center (VAMC), Los Angeles, CA, ⁶Washington D.C., Veterans Affairs Medical Center (VAMC)/Georgetown and Howard Universities, Washington, DC, ⁷Salt Lake City Veteran Affairs Medical Center (VAMC)/University of Utah Hospital, Salt Lake City, UT, ⁸Phoenix Veterans Affairs Medical Center (VAMC), Phoenix, AZ, ⁹Sacramento Veterans Affairs Medical Center (VAMC)/University of California-Davis Health, Davis, CA, ¹⁰University of Texas – Southwestern Medical Center/Dallas Veterans Affairs Medical Center (VAMC), Dallas, TX, ¹¹Rocky Mountain Regional Veterans Affairs Medical Center (VAMC)/University of Colorado School of Medicine, Aurora, CO
Background/Purpose: Biomarkers of disease activity/severity and imaging outcomes in axial spondyloarthritis (axSpA) remain a challenge. The most common relevant biomarker is the C-Reactive Protein (CRP),…
Abstract Number: 0520 • ACR Convergence 2021
Leukocyte Immunoglobulin-like Receptor A3 Facilitates Neutrophil Extracellular Trap Formation in TLR7-induced Lupus Mice
Hongjiang Liu¹, Yundi Tang¹, Chen Chen² and Jianping Guo², ¹Peking University People's Hospital, Beijing, China (People's Republic), ²Peking University People’s Hospital, Beijing, China (People's Republic)
Background/Purpose: Leukocyte immunoglobulin-like receptor A3 (LILRA3) is a secreted protein belongs to LILR family. Our research group previously reported that the functional LILRA3 is a…
Abstract Number: 0535 • ACR Convergence 2021
Therapeutic Efficacy of a Biomimetic ALXR Agonist in Murine Systemic Lupus Erythematosus (SLE)
Priyal Dave¹, Tiange Dong¹, Andrew Mead¹, Isaac Asante¹, Brandon Ebright¹, Eugene Zhou¹, RIta Li¹, Nicos Petasis¹, William Stohl² and Stan Louie¹, ¹University of Southern California, Los Angeles, CA, ²University of Southern California Keck School of Medicine, Los Angeles, CA
Background/Purpose: Neutrophils are key initiators and promoters of autoimmunity, including SLE, via the elaboration of neutrophil extracellular traps (NETs). We tested the efficacy of the…
Abstract Number: 0541 • ACR Convergence 2021
N-formyl Methionine Peptide-mediated Neutrophil Activation in Systemic Sclerosis
Runa Kuley¹, Ryan Stultz², Bhargavi Duvvuri², Roger Hesselstrand³, J Lee Nelson⁴ and Christian Lood², ¹Division of Rheumatology, University of Washington, Seattle, WA, ²University of Washington, Seattle, WA, ³Lund University, Lund, Sweden, ⁴Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA
Background/Purpose: Systemic sclerosis (SSc) is a complex systemic autoimmune disease, and its etiology is unknown. Exaggerated neutrophil activation and formation of neutrophil extracellular traps (NETs)…
Abstract Number: 0948 • ACR Convergence 2021
Immunometabolism of Neutrophils in Antiphospholipid Syndrome (APS)
Ajay Tambralli¹, Alyssa Harbaugh², Shanea Estes², Srilakshmi Yalavarthi², Claire Hoy², Gautam Sule² and Jason Knight², ¹University of Michigan, Ypsilanti, MI, ²University of Michigan, Ann Arbor, MI
Background/Purpose: Neutrophil hyperactivity and neutrophil extracellular trap (NET) release (NETosis) appear to play roles in APS pathophysiology. Until recently, it was thought that neutrophils relied…
Abstract Number: 0994 • ACR Convergence 2021
Role of SLE Associated Cytokines in Generation of Mature Neutrophils
Neelakshi R. Jog, Julia Nguyen and Judith James, Oklahoma Medical Research Foundation, Oklahoma City, OK
Background/Purpose: Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by autoantibody production and periods of elevated disease activity. Recent studies indicate that along…
Abstract Number: 0998 • ACR Convergence 2021
Increasing Age Impairs the Metabolic Adaptation of Human Neutrophils to Glucose Deprivation
Moritz Pfeiffenberger¹, Pierre-Louis Krau², Yuling Chen³, Thomas Buttgereit⁴, Alexandra Damerau¹, Timo Gaber¹ and Frank Buttgereit⁴, ¹Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany, ²Charit Universittsmedizin Berlin, corporate member of Freie Universitt Berlin, Humboldt-Universitt zu Berlin, and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany, ³Charité University Medicine Berlin, Berlin, Germany, ⁴Charité – Universitätsmedizin Berlin, Berlin, Germany
Background/Purpose: Age-related impairment of characteristic neutrophil functions is well described (Fortin, McDonald et al. 2008). However, experimental evidence for age-related alterations of neutrophil metabolic adaptation…
Abstract Number: 1430 • ACR Convergence 2021
Autoantibodies Stabilize Neutrophil Extracellular Traps in COVID-19
Yu Zuo¹, Srilakshmi Yalavarthi¹, Sherwin Navaz¹, Claire Hoy¹, Alyssa Harbaugh¹, Kelsey Gockman¹, Melanie Zuo¹, Jacqueline Madison¹, Hui Shi¹, Yogendra Kanthi² and Jason Knight¹, ¹University of Michigan, Ann Arbor, MI, ²NHLBI, NIH, Bethesda, MD
Background/Purpose: The release of neutrophil extracellular traps (NETs) by hyperactive neutrophils is recognized to play an important role in the thromboinflammatory milieu inherent to severe…
Abstract Number: 1868 • ACR Convergence 2021
Neutrophil Extracellular Trap Formation in Patients with Vasculitis
Despina Michailidou¹, Runa Kuley¹, Tomas Mustelin², David Cuthbertson³, Peter Grayson⁴, Nader Khalidi⁵, CURRY LEE MD KOENING⁶, Carol Langford⁷, Carol McAlear⁸, Larry Moreland⁹, Christian Pagnoux¹⁰, Philip Seo¹¹, Ulrich Specks¹², Antoine Sreih⁸, Kenneth Warrington¹³, Paul Monach¹⁴, Peter Merkel¹⁵ and Christian Lood², ¹Division of Rheumatology, University of Washington, Seattle, WA, ²University of Washington, Seattle, WA, ³Health Informatics Institute, University of South Florida, South Florida, FL, ⁴National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ⁵McMaster University, Hamilton, ON, Canada, ⁶LIMITED TO OFFICIAL UNIVERSITY DUTIES ONLY, Salt Lake City, UT, ⁷Cleveland Clinic, Moreland Hills, OH, ⁸Division of Rheumatology, University of Pennsylvania, Philadelphia, PA, ⁹Division of Rheumatology, University of Pittsburgh, Pittsburgh, PA, ¹⁰Mount Sinai Hospital, Toronto, ON, Canada, ¹¹Johns Hopkins University, Baltimore, MD, ¹²Mayo Clinic, Rochester, MN, ¹³Mayo Clinic, Rochester, Minnesota, ¹⁴Brigham and Women's Hospital, Boston, MA, ¹⁵University of Pennsylvania, Philadelphia, PA
Background/Purpose: Neutrophil extracellular trap (NET) formation, the extrusion of chromatin and granular components from activated neutrophils, is essential in host defense. However, NET formation has…
Abstract Number: 1875 • ACR Convergence 2021
Hyoscine Butylbromide Inhibits Neutrophil Cell Death Induction by Cocaine-levamisole. a Proof of Concept for the Management of Vasculopathy Induced by Cocaine-Levamisole
Manuela Osorio¹, Tulio Lopera¹, Teresita Coneo², Isabel Velásquez-Giraldo², Ruben Vargas², Adriana Lucía Vanegas-García³, Mauricio Rojas², Gloria Vasquez⁴ and Carlos Muñoz-Vahos⁵, ¹Universidad de Antioquia, Medellin, Colombia, ²Universidad de Antioquia, Medellín, Colombia, ³Division of rheumatology, Universidad de Antioquia – Hospital San Vicente Fundación, Medellín, Colombia, ⁴Division of rheumatology, Universidad de Antioquia, Medellin, Colombia, ⁵Hospital San Vicente Fundación, Medellín, Colombia
Background/Purpose: The Vasculopathy induced by Cocaine-Levamisole (VICOL) is a recently described vasculopathy characterized by the presence of tissue necrosis. One of the possible mechanisms associated…
Abstract Number: 1936 • ACR Convergence 2021
A Neutrophil Degranulation Signature Identifies Proliferative Lupus Nephritis
Andrea Fava¹, Jessica Li¹, Daniel Goldman², Brendan Antiochos¹, Jose Monroy-Trujillo¹, Derek Fine¹, Mohamed G. Atta¹, Jill Buyon³, Joel Guthridge⁴, Judith James⁴, Michelle Petri² and Accelerating Medicines Partership (AMP) RA/SLE Network⁵, ¹Johns Hopkins University, Baltimore, MD, ²Johns Hopkins University School of Medicine, Baltimore, MD, ³NYU School of Medicine, New York, NY, ⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁵Brigham and Women's Hospital, Everett, MA
Background/Purpose: The identification of intrarenal pathological processes is key to develop better diagnostic and treatment strategies in lupus nephritis (LN). But the direct comprehensive study…
Abstract Number: 0047 • ACR Convergence 2021
A Role for Neutrophils in Disease Onset and Severity of Spondyloarthritis
Holly Rosenzweig¹, Emily Vance², Rouhin sen³, Liron Caplan⁴ and Ruth Napier¹, ¹Oregon Health & Science University, Portland, OR, ²VA Portland Health Care System, Portland, OR, ³Colorado University Anschutz Medical Campus, Denver, CO, ⁴Rocky Mountain Regional Veterans Affairs Medical Center (VAMC)/University of Colorado School of Medicine, Aurora, CO
Background/Purpose: Spondyloarthritis (SpA) is a group of inflammatory diseases that includes axial spondyloarthritis (axSpA) and psoriatic arthritis (PsA). AxSpA patients have irregular neutrophil responses, as…
Abstract Number: 0073 • ACR Convergence 2020
A Cross-Species Map of Neutrophil Inflammatory Responses
Felix Radtke¹, Frank Huang², Peter Nigrovic³ and Ricardo Grieshaber-Bouyer⁴, ¹Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Medicine V, Hematology, Oncology and Rheumatology, Heidelberg University Hospital, Heidelberg, Germany, Heidelberg, Baden-Wurttemberg, Germany, ²Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Medicine V, Hematology, Oncology and Rheumatology, Heidelberg University Hospital, Heidelberg, Germany, Darmstadt, Baden-Wurttemberg, Germany, ³Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA, Boston, ⁴Department of Medicine V, Hematology, Oncology and Rheumatology, Heidelberg University Hospital, Heidelberg, Germany; Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA, Heidelberg, Germany
Background/Purpose: Neutrophils are important mediators of immune defense as well as key protagonists in immune-mediated disease. How these cells adapt differently to sterile and septic…
Abstract Number: 0287 • ACR Convergence 2020
RNA Externalized by Neutrophil Extracellular Traps Promotes Inflammatory Pathways in Endothelial Cells
Xinghao Wang¹, Philip Carlucci², Jorge Romo-Tena¹, Jose Torres-Ruiz¹, Hong-Wei Sun¹, Markus Hafner¹, Mariana Kaplan³ and Luz Blanco⁴, ¹NIAMS, National Institute of Health, Bethesda, ²New York University School of Medicine, New York, NY, ³National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD, ⁴National Institute of Arthritis and Musculoskeletal and Skin Diseases, Centreville
Background/Purpose: Neutrophil extracellular traps (NETs) are extracellular lattices composed of nucleic material bound to neutrophil granule proteins. NETs may play pathogenic roles in development and…