Abstracts tagged "neutrophils"

Abstract Number: 0099 • ACR Convergence 2024
Modulating Pentose Phosphate Pathway Metabolism to Temper Neutrophil Hyperactivity in Antiphospholipid Syndrome
Kaitlyn Sabb¹, Ajay Tambralli¹, Megan Radyk¹, Emily Becker¹, Srilakshmi Yalavarthi¹, Claire Hoy¹, Cyrus Sarosh², Jacqueline Madison¹, Yu Zuo¹, Costas Lyssiotis¹ and Jason Knight¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Temperance, MI
Background/Purpose: Neutrophil hyperactivity and neutrophil extracellular trap (NET) release (NETosis) appear to play important roles in antiphospholipid syndrome (APS) pathogenesis. To kill microbes and propel…
Abstract Number: 1638 • ACR Convergence 2024
Calprotectin, a Mechanistically Informed Biomarker for Clinically Isolated Aortitis
Katarina Kmetova¹, Emily Chong², NaveenKumar Somanathapura K³, Kavya Sugur², Lyndsay Kluge², Srilakshmi Yalavarthi³, Julia Ford³, Ora Singer⁴ and Yu Zuo³, ¹Division of Rheumatology, University of Michigan, Ann Arbor, Michigan, USA, Ann Arbor, MI, ²Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann arbor, Ann arbor, MI, ³University of Michigan, Ann arbor, MI, ⁴University of Michigan, Huntington Woods, MI
Background/Purpose: Clinically isolated aortitis (CIA) is aortitis in patients without evidence of systemic disease, infection, or involvement of other vascular territories. CIA is discovered incidentally…
Abstract Number: 0101 • ACR Convergence 2024
Metabolomic Profiling Reveals a Role for Citric Acid Cycle Dysfunction in Antiphospholipid Syndrome Neutrophils
Ajay Tambralli¹, Megan Radyk¹, Kaitlyn Sabb¹, Li Zhang¹, Harrison Wong¹, Emily Becker¹, Srilakshmi Yalavarthi¹, Claire Hoy¹, Cyrus Sarosh², Jacqueline Madison¹, Yu Zuo¹, Jason Knight¹ and Costas Lyssiotis¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Temperance, MI
Background/Purpose: As early effectors of the immune response, neutrophils must access energy rapidly. Neutrophils rely on glycolysis for antimicrobial functions such as phagocytosis and reactive…
Abstract Number: 1795 • ACR Convergence 2024
Immune Complexes-Mediated Activation of Neutrophils in Systemic Lupus Erythematosus Is Dependent on RNA Recognition by TLR8
Ting Wang¹, Runa Kuley², Payton Hermanson², Gundula Min-oo³, Natasha Crellin⁴, Ching Shang³ and Christian Lood¹, ¹University of Washington, Seattle, WA, ²University of Washington, Seattle, ³Gilead Sciences, Foster City, CA, ⁴Gilead, Foster City, CA
Background/Purpose: Neutrophil activation has been implicated to contribute to the systemic lupus erythematosus (SLE) pathogenesis. However, factors and mechanisms promoting neutrophil activation in SLE have…
Abstract Number: 0103 • ACR Convergence 2024
CD10highLow-Density Granulocytes Is a Potential Marker of Disease Activity in Antiphospholipid Syndrome
chun Li, Peking University People's Hospital, Beijing, China
Background/Purpose: To investigate the relationship between CD10highLow-Density Granulocytes (LDG) and disease activity in antiphospholipid syndrome(APS).Methods: This study included 99 patients with APS who were treated…
Abstract Number: 1802 • ACR Convergence 2024
Heterogeneous Neutrophil Subsets Infiltrate Glomeruli of Lupus Nephritis Patients and Are Elevated in the Kidneys and Urine of Sunlight-induced Nephritis Flares
Noelle Kosarek¹, Joshua Skydel², Alecia Roy³, Fred Kolling¹, Lucas Salas¹, Christopher Burns⁴, Andrea Fava⁵ and Sladjana Skopelja-Gardner¹, ¹Geisel School of Medicine at Dartmouth, Lebanon, ²Dartmouth Hitchcock Medical Center, Lebanon, ³Dartmouth College, Lebanon, NH, ⁴Dartmouth Hitchcock Medical Center, Lebanon, NH, ⁵Divison of Rheumatology, Johns Hopkins University, Baltimore, MD
Background/Purpose: Up to ~60% of SLE patients in North America will develop kidney disease, lupus nephritis (LN), one of the main contributors to disease morbidity…
Abstract Number: 0507 • ACR Convergence 2024
Neutrophil Activation Markers Can Predict Rheumatoid Arthritis Treatment Response to the Janus Kinase 1/2 Inhibitor Baricitinib
Runa Kuley¹, Bhargavi Duvvuri¹, Sabeeha Hasnain², Ernst Dow³, Alisa Koch⁴, Richard Higgs⁴, Venkatesh Krishnan⁴ and Christian Lood⁵, ¹University of Washington, Seattle, ²Mahindra University, Hyderabad, India, ³Eli Lilly and Co, Indianapolis, IN, ⁴Eli Lilly, Indianapolis, IN, ⁵University of Washington, Seattle, WA
Background/Purpose: Neutrophils play an important role in regulating immune and inflammatory responses in rheumatoid arthritis (RA). We assessed whether baricitinib, a JAK1/JAK2 inhibitor, could reduce…
Abstract Number: 2601 • ACR Convergence 2024
Platelets Specifically Interact with Remigrating Neutrophils and Promote Immunogenic Cellular Death in Systemic Lupus
Marie nansion¹, Eloi Schmauch², Pierre Vacher³, Jean Sibilia⁴, Nathan Broussaudier¹, Adeline Bruchon¹, Pierre Grenot¹, Anne-Sophie Korganow⁵, Thierry Martin⁵, Sophie Caillard⁶, Anna Duval⁶, Jacques-Eric Gottenberg⁷, Raphaël Carapito¹, Séiamak Bahram¹, Patrick Blanco⁸ and Marc Scherlinger⁹, ¹UMR_INSERM 1109, Strasbourg, France, ²Broad Institute of MIT and Harvard, Cambridge, MA, USA., Boston, MA, ³Inserm U1045, Bordeaux, France, ⁴Strasbourg University Hospital, National reference center for autoimmune disease, Rheumatology, Strasbourg, France, ⁵Strasbourg University Hospital, National reference center for autoimmune disease, Clinical Immunology, Strasbourg, France, ⁶Nephrology department, HUS, Strasbourg, France, ⁷Rheumatology Department, Strasbourg University Hospital,, Strasbourg, France, ⁸UMR_CNRS 5164 Immunoconcept, BORDEAUX CEDEX, France, ⁹Strasbourg University Hospital; INSERM 1109, Strasbourg, France
Background/Purpose: In SLE, platelet activation (express P-selectin+) follows the disease activity, which plays a role in thrombosis as well as in inflammation (1). Neutrophils express high levels of PSGL-1,…
Abstract Number: 0515 • ACR Convergence 2024
Scavenging Isolevuglandins with 2-HOBA Decreases In Vitro Neutrophil Extracellular Traps in Cells from Patients with Rheumatoid Arthritis
Olivia Posey, Anastasiia Phothisane, Phicharmon Kulapatana and Michelle Ormseth, Vanderbilt University Medical Center, Nashville, TN
Background/Purpose: Neutrophils contribute to the innate immune response of killing pathogens through the formation of neutrophil extracellular traps (NETs), which is also called NETosis. NETosis…
Abstract Number: 2690 • ACR Convergence 2024
ANCA IgG Promotion of Neutrophil Recruitment, Migration and Vascular Damage in ANCA Associated Vasculitis May Be Enhanced by Hypoxia
Noelle Pisacano, Amrita Dhutia, Stephen Rothery, Charles Pusey, Edwin Chilvers, Andrew Cowburn, Katharine Lodge and Maria Prendecki, Imperial College London, London, United Kingdom
Background/Purpose: Neutrophils are main mediators of disease in ANCA associated vasculitis (AAV). Pathogenic ANCA IgG on neutrophils promotes neutrophil adhesion and migration at the endothelium.…
Abstract Number: 0766 • ACR Convergence 2024
Neutrophil Transcriptomics in VEXAS Syndrome
Chloe Palmer¹, Gustaf Wigerblad¹, Tom Hill², Bhavisha Patel³, Emma Groarke⁴, Neal Young⁴, Stefania Dell'Orso⁵ and Peter Grayson⁶, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ²National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, ³National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Beltsville, MD, ⁴National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, ⁵National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, Bethesda, MD, ⁶National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Chevy Chase, MD
Background/Purpose: Vacuoles, E1 ubiquitin-activating enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome is caused by somatic mutations of the ubiquitin-like modifier activating enzyme 1 (UBA1) gene and…
Abstract Number: 0773 • ACR Convergence 2024
Anti-Citrullinated Histone Antibody CIT-013 Targets NETs in Inflamed Joints and Halts NET-mediated Joint Deterioration
Leonie Middelink¹, Annemarie Kip², Maarten van der Linden³, Sangeeta Kumari², Stephanie van Dalen², Josephine Stein⁴, Tirza Bruurmijn², Martyn Foster⁵, Peter van Zandvoort², Patrick Round², Eric Meldrum², Helmuth van Es² and Renato Chirivi², ¹Citryll, Oss, Noord-Brabant, Netherlands, ²Citryll BV, Oss, Noord-Brabant, Netherlands, ³Citryll BV, Oss, Netherlands, ⁴Citryll BV, Oss, Noord-Holland, Netherlands, ⁵Experimental Pathology Consultancy, Benfleet, United Kingdom
Background/Purpose: Neutrophil extracellular traps (NETs) contribute to the pathophysiology of many immune-mediated inflammatory diseases (IMIDs). Though NETosis-targeting therapeutics have shown potential as effective treatments, currently…
Abstract Number: 0801 • ACR Convergence 2024
Neutrophil Activation as a Novel Marker of Lung Disease in Rheumatoid Arthritis
Jia Shi¹, Yang Wu¹, Ting Wang², Chen Yu³, qian wang⁴, Xinping Tian⁵, Mengtao Li⁴, Kristen Demoruelle⁶, Joshua Solomon⁷ and Christian Lood², ¹University of Washington, Seattle, ²University of Washington, Seattle, WA, ³Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Dong Cheng Qu, China (People's Republic), ⁴Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China 2National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, Beijing, China, ⁵Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China, ⁶University of Colorado Anschutz Medical Campus, Golden, CO, ⁷National Jewish Health, Denver, CO
Background/Purpose: Neutrophil activation is seen in rheumatoid arthritis (RA), but its involvement in RA interstitial lung disease (RA-ILD) is not clear. Levels of N-formyl methionine…
Abstract Number: 0918 • ACR Convergence 2024
Anti-VISTA Antibody Suppresses Neutrophil-mediated Inflammation
Elizabeth Nowak¹, Jiannan Li¹, Mohamed ElTanbouly¹, Lindsay Mendyka², Louise Lines¹, Rodwell Mabaera³, Christopher Burns⁴, Randolph Noelle¹ and Sladjana Skopelja-Gardner¹, ¹Geisel School of Medicine at Dartmouth, Lebanon, ²Dartmouth Hitchcock Memorial Hospital, Lyme, NH, ³Dartmouth Hitchcock Medical Center, Lebanon, ⁴Dartmouth Hitchcock Medical Center, Lebanon, NH
Background/Purpose: A growing body of evidence suggests that VISTA, an immune checkpoint inhibitory receptor, plays a central role in the regulation of innate immunity in…
Abstract Number: 0931 • ACR Convergence 2024
Salivary Granular Convoluted Tubules Contribute to Maintain Tissue-specific Tolerance – Implications for the Development of Murine Sjögren´s Syndrome
Xiaomei Shan¹, Clara Reichardt¹, Marco Munoz Becerra¹, Aleix Rigau², Lena Müller³, Anne Zeitler¹, Jasmin Knopf⁴, Gerhard Grossmayer¹, Martin Herrmann¹, Christine Schauer¹, Markus Eckstein⁵, Georg Schett⁶ and Luis Munoz⁷, ¹Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany, ²Friedrich-Alexander Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ³Medizin Universität Wien, Vienna, Austria, ⁴Universitätsklinikum Mannheim, Mannheim, Germany, ⁵Institute of Pathology and Comprehensive Cancer Center EMN, Friedrich-Alexander- Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ⁶Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, ⁷Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen
Background/Purpose: Primary Sjögren's syndrome (PSS) is a chronic inflammatory disease affecting exocrine glands with an important systemic autoimmune reaction against some nuclear and membrane bound…

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