Abstracts tagged "neutrophils"

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…
Abstract Number: 0933 • ACR Convergence 2024
NLRP3 Inflammasome Promotes Release of Peptidyl Arginine Deiminases2 and 4 from Human Neutrophils
Teneema Kuriakose, Mingxin Yang, Lacie Scaletta and Gary Sims, Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD
Background/Purpose: Autoantibodies targeting citrullinated proteins (ACPAs) are a characteristic feature and a diagnostic marker in rheumatoid arthritis (RA). The generation of citrullinated protein autoantigens is…
Abstract Number: 0951 • ACR Convergence 2024
A Feedback Loop Involving mtDNA, Platelets and Neutrophil Extracellular Traps Amplifies Inflammation in Systemic Sclerosis
Stavros Giaglis¹, Diego Kyburz² and Ulrich Walker³, ¹Experimental Rheumatology Laboratory, University of Basel, Basel, Switzerland, ²University Hospital Basel, Basel, Switzerland, ³Basel University Hospital, Basel, Switzerland
Background/Purpose: Mitochondria are essential eucaryotic cell organelles with several bacterial features, such as a double-stranded circular genome with hypomethylated CpG areas (1). A fundamental role of…
Abstract Number: 1339 • ACR Convergence 2023
Neutrophil Activation and Formation of Neutrophil Extracellular Traps Are Associated with Response to Abatacept in Patients with Moderate to Severe Rheumatoid Arthritis
Ting Wang¹, Natalia V. Giltiay², Christian Lood² and Bobby Kwanghoon Han², ¹University of Washington, Seattle, WA, ²Division of Rheumatology, University of Washington, Seattle, WA
Background/Purpose: Neutrophil activation and formation of neutrophil extracellular traps (NETs) have been implicated in the pathogenesis of rheumatoid arthritis (RA). Calprotectin, a neutrophil activation marker,…
Abstract Number: 1363 • ACR Convergence 2023
Plasma Neutrophil Extracellular Trap Remnant Levels Are Lower in Premenopausal Healthy Women Using Oral Contraceptive Pills
Background/Purpose: Women develop RA 3 times more often than men, and several risk factors for RA are female specific. Prior studies demonstrate an association between…
Abstract Number: 0044 • ACR Convergence 2023
Aberrant Mevalonate Metabolite Farnesyl Pyrophosphate-Induced Neutrophil Hyperactivation in Behçet’s Disease Pathogenesis
Menghao Zhang¹, Na Kang², Xin Yu¹, Wanli Liu² and Wenjie Zheng¹, ¹Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, China, ²Beijing Key Lab for Immunological Research on Chronic Diseases, School of Life Sciences, Institute for Immunology, Tsinghua University, Beijing, China
Background/Purpose: Behçet’s disease (BD) is a chronic vasculitis characterized by polymorphonuclear neutrophils (PMNs) hyperactivation with unknown etiology. The over-productions of neutrophil extracellular traps (NETs) and…
Abstract Number: 1585 • ACR Convergence 2023
Defining Neutrophil-Mediated Renal Damage Triggered by Ultraviolet (UV) Skin Exposure
Angelique Cortez¹, Lindsay Mendyka², Fred Kolling³, Michael Whitfield¹ and Sladjana Skopelja-Gardner⁴, ¹Dartmouth College, Hanover, NH, ²Dartmouth Hitchcock, Lebanon, NH, ³Geisel School of Medicine at Dartmouth, Hanover, NH, ⁴Dartmouth-Hitchcock, Lebanon, NH
Background/Purpose: Lupus (SLE) is one of the leading causes of death in young women in the United States. Roughly ~80% of SLE patients experience sensitivity…
Abstract Number: 0045 • ACR Convergence 2023
Discovery and Characterization of a Selective, Orally Bioavailable PAD4 Inhibitor to Target NETs Driven Autoimmune and Inflammatory Diseases
Min Yang¹, song feng¹, yuling wen¹, Xiaoming ren¹, Huijuan Li¹, lili yao¹, Zhi xie² and Wenge zhong¹, ¹Regor Therapeutics, Shanghai, China, ²Regor Pharmaceuticals, Inc., San Francisco, CA
Background/Purpose: Protein arginine deiminases (PAD) 4 is an enzyme that catalyzes the conversion of protein-embedded arginine to citrulline. It is essential for neutrophil extracellular traps…

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