Abstracts tagged "neutrophils"

Abstract Number: 0287 • ACR Convergence 2025
Comprehensive Profiling of Neutrophil Subsets Reveals Functional Signatures Linked to Vasculopathic Features in Patients with Inflammatory Myopathies
Daniel Alberto Carrillo-Vázquez¹, Beatriz Alcalá-Carmona¹, Jennifer Tiaré Balderas Miranda², Yatzil Reyna Juárez³, María José Ostos Prado¹, Samuel Govea-Peláez¹, Nancy R Mejía Domínguez⁴, Guillermo Juárez Vega⁴, Karina Santana-De Anda¹, Jiram Torres-Ruiz⁵ and Diana Gómez-Martín⁶, ¹Instituto Nacional De Ciencias Médicas Y Nutrición Salvador Zubirán, Mexico City, Distrito Federal, Mexico, ²Universidad Nacional Autónoma de México, Coyoacán, Federal District, Mexico, ³Instituto Politècnico Nacional, Tultitlán de Mariano Escobedo, Mexico State, Mexico, ⁴Universidad Nacional Autónoma de México, Mexico City, Distrito Federal, Mexico, ⁵INCMNSZ, Ciudad de México, Mexico, ⁶INCMNSZ, Mexico city, Federal District, Mexico
Background/Purpose: Vasculopathic manifestations of idiopathic inflammatory myopathies (IIM) such as interstitial lung disease (ILD), calcinosis, skin ulcers, mechanic’s hands, are characterized by immune-mediated vascular damage.…
Abstract Number: 1490 • ACR Convergence 2025
Vitamin D Deficiency and Its Relationship with Inflammatory Biomarkers in SLE: A Focus on Neutrophil-to-Lymphocyte Ratio
judith hernández-Sánchez¹, Beatriz Tejera Segura², Luis Bausá Gimeno¹, Doryan García Olivas¹, Patricia González Terrats¹, MA Acosta Mérida¹, Diana Botello Corzo¹, Daniel Batista perdomo¹, Sergio Machin González¹, F Javier Nóvoa Medina¹ and Jose Angel Hernandez³, ¹Rheumatology Department. Hospital Universitario Insular de Gran Canaria, Las palmas, Spain, ²Hospital Insular de Gran Canaria, Las palmas, Spain, ³Hospital Universitario Insular de Gran Canaria, Las Palmas de Gran CanariaHospital, Spain
Background/Purpose: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that can affect multiple organs. Vitamin D levels have been associated with disease activity in…
Abstract Number: 0134 • ACR Convergence 2025
Neutrophil Gasdermin D Pores as Potential Therapeutic Targets in APS-Associated Thromboinflammation
NaveenKumar Somanathapura¹, Thalia Newman¹, Chao Liu², Srilakshmi Yalavarthi³, Cyrus Sarosh⁴, Jacqueline Madison¹, Ajay Tambralli¹, Yu (Ray) Zuo¹ and Jason S. Knight¹, ¹University of Michigan, Ann arbor, MI, ²University of Michigan, Superior Charter Twp, MI, ³Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, ⁴University of Michigan, Temperance, MI
Background/Purpose: Emerging evidence implicates neutrophil activation and neutrophil extracellular trap (NET) formation (i.e., NETosis) in amplifying APS-associated thromboinflammation. Gasdermin D (GSDMD), a substrate of inflammatory…
Abstract Number: 1208 • ACR Convergence 2025
Neutrophil Activation in Juvenile Dermatomyositis: Associations with Muscle Function and Disease Progression
Jia Shi¹, Yang Wu², Aviya Levy³, Ting Wang⁴, Abhinav Janappareddi⁵, Payton Hermanson¹, Jorge A. Gonzalez-Chapa⁵, Qian Wang⁶, Susan Shenoi⁷ and Christian Lood⁵, ¹University of Washington, Seattle, WA, ²¹. Chinese Academy of Medical Sciences & Peking Union Medical College; ². Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, China; ³. University of Washington, Division of Rheumatology, Seattle, WA, USA, Beijing, China (People's Republic), ³Rady Children's Hospital, San Diego, CA, ⁴Division of Rheumatology, Seattle Children's Hospital and Research Center, Seattle, ⁵University of Washington, Division of Rheumatology, Seattle, ⁶Peking Union Medical College Hospital, Beijing, Beijing, China (People's Republic), ⁷Seattle Children's Hospital and Research Center, Mercer Island, WA
Background/Purpose: Juvenile dermatomyositis (JDM) is an inflammatory vasculopathy characterized by muscle weakness and systemic inflammation. This study aimed to investigate the clinical utility of neutrophil…
Abstract Number: 0115 • ACR Convergence 2025
Dysfunctional Mitophagy Propels Neutrophil Hyperactivity and Thrombosis in Antiphospholipid Syndrome
Ajay Tambralli¹, Emily Becker², Kaitlyn Sabb³, NaveenKumar Somanathapura¹, Srilakshmi Yalavarthi¹, Cyrus Sarosh⁴, Jacqueline Madison¹, Yu (Ray) Zuo¹ and Jason S. Knight¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Ann Arbor, ³University of Michigan - Ann Arbor, Ann Arbor, MI, ⁴University of Michigan, Temperance, MI
Background/Purpose: Neutrophil hyperactivity and neutrophil extracellular trap (NET) release (NETosis) contribute to antiphospholipid syndrome (APS) pathogenesis. We recently discovered that APS patient neutrophils have more…
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: 0046 • ACR Convergence 2024
Impaired Neutrophil Extracellular Trap (NET) Degradation in Rheumatoid Arthritis (RA) and Pre-clinical RA Is Mediated by Anti-NET Antibodies
Jeba Atkia Maisha¹, Alina Sememenko², Jun Kim², Mario Navarrete², XIAOBO MENG¹, Hani El-Gabalawy¹ and Liam O'Neil¹, ¹University of Manitoba, Winnipeg, MB, Canada, ²University of Manitoba, Winnipeg, Canada
Background/Purpose: Rheumatoid Arthritis (RA) begins after a prolonged preclinical phase which is marked by the development of RA antibodies, typically against citrullinated proteins (ACPA). The…

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