Abstracts tagged "neutrophils"

Abstract Number: LB22 • ACR Convergence 2025
Early Evidence of Proof-of-Concept of an Albumin-DNASE1L3 Fusion Protein (NTR-441) for the Rapid Enzymatic Inactivation of NETs in SLE with DNASE1L3-Deficiency
Andreas Reiff¹, Tadej Avcin², Bernd Jilma³, Peter Korosec⁴, Matthias Weiss-Tessbach³, Christian Schoergenhofer³, Masa Bizjak⁵, Barbara Jenko Bizjan⁶, Barbara Cugalj Kern⁵, Kim Simpfendorfer⁷, Christian Lood⁸, Tyler Artner⁹, Angelene Prasanna¹, Ken Olivier¹, Ghazaleh Gouya¹, Ralph Lambalot⁹, Abdul Hakkim¹ and Tobias Fuchs¹, ¹Neutrolis, Cambridge, Massachusetts, ²University Medical Centre Ljubljana, Ljubljana, Slovenia, ³Medical University of Vienna, Vienna, Austria, ⁴University Clinic of Respiratory and Allergic Diseases, Golnik, Slovenia, ⁵University Medical Center Ljubljana, Ljubljana, Slovenia, ⁶University of Ljubljana, Ljubljana, Slovenia, ⁷Feinstein Institutes for Medical Research, Manhasset, New York, ⁸University of Washington, Seattle, Washington, ⁹Neutrolis, Cambridge
Background/Purpose: Excessive formation and impaired clearance of Neutrophil Extracellular Traps (NETs) have been linked to autoimmune and inflammatory diseases, notably systemic lupus erythematosus (SLE). DNASE1-like…
Abstract Number: 2052 • ACR Convergence 2025
Prevalence of anti-neutrophil extracellular trap antibodies and their relationship with the clinical characteristics of patients with idiopathic inflammatory myopathies.
Agustin Hernández-López¹, Nancy R Mejía Domínguez², Yatzil Reyna Juárez³, María José Ostos Prado⁴, Beatriz Alcalá Carmona⁵, Jennifer Tiaré Balderas Miranda⁶, Carlos A. Núñez-Álvarez⁵, Marta E. Baños-Laredo⁷, Álvaro Abiel Sierra-Salazar⁵, Johan Camacho-Pérez⁵, Marco Aurelio Martínez-Rivera⁵, Diana Gómez-Martín⁸ and Jiram Torres-Ruiz⁹, ¹Instituo Nacional de Ciencias Médicas y Nutricion Salvador Zubirán, Morelia, Michoacan de Ocampo, Mexico, ²Universidad Nacional Autónoma de México, Mexico City, Distrito Federal, Mexico, ³Instituto Politècnico Nacional, Tultitlán de Mariano Escobedo, Mexico State, Mexico, ⁴Instituto Nacional De Ciencias Médicas Y Nutrición Salvador Zubirán, Mexico City, Distrito Federal, Mexico, ⁵INCMNSZ, Cdmx, Distrito Federal, Mexico, ⁶Universidad Nacional Autónoma de México, Coyoacán, Federal District, Mexico, ⁷INCMNSZ, Cdmx, Mexico, ⁸INCMNSZ, Mexico city, Federal District, Mexico, ⁹INCMNSZ, Ciudad de México, Mexico
Background/Purpose: Patients with idiopathic inflammatory myopathies (IIM) have increased production and decreased clearance of neutrophil extracellular traps (NETs), which may promote the production of anti-NETs…
Abstract Number: 0859 • ACR Convergence 2025
Trophoblast Dysfunction and Placental Alterations in a Mouse Model of Antiphospholipid Syndrome: The Potential Role of Neutrophil Extracellular Traps
Bruna Mazetto Fonseca¹, Srilakshmi Yalavarthi², Katarina Kmetova², NaveenKumar Somanathapura³, Cyrus Sarosh⁴, Kavya Sugur⁵, Wenying Liang⁶, Yu (Ray) Zuo³, Richard W. Lieberman⁶ and Jason S. Knight³, ¹Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, ²Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, ³University of Michigan, Ann arbor, MI, ⁴University of Michigan, Temperance, MI, ⁵Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, ⁶University of Michigan, Ann arbor
Background/Purpose: Neutrophil extracellular traps (NETs) are webs of chromatin and proteases (e.g., neutrophil elastase) that have been implicated in antiphospholipid syndrome (APS)-associated thrombosis; however, their…
Abstract Number: 1874 • ACR Convergence 2025
Neutrophil Extracellular Trap-Rich Systemic Sclerosis Plasma Promotes Microvascular Endothelial Cell Proliferation and Migration: Implications for Aberrant Angiogenesis
Wenying Liang¹, James St. Clair¹, Pei-Suen Tsou², John Varga², Jason S. Knight², Dinesh Khanna² and Ramadan Ali³, ¹University of Michigan, Ann arbor, ²University of Michigan, Ann Arbor, MI, ³University of Michigan, Ann Arobr, MI
Background/Purpose: Systemic sclerosis (SSc, also known as scleroderma) is a systemic disease characterized by fibrosis, autoimmunity, and vasculopathy. Neutrophil extracellular traps (NETs) are web‐like chromatin…
Abstract Number: 0723 • ACR Convergence 2025
Neutrophil and Eosinophil Extracellular Traps in Eosinophilic Granulomatosis with Polyangiitis: Phenotype-based Characterization and Response to Mepolizumab
Michele Moretti¹, Francesco Ferro², Francesco Pisani³, Elisa Ferrigno³, Gaetano La Rocca⁴, Federica Di Cianni⁵, Rosaria Talarico⁶, Marta Mosca⁷, Chiara Baldini⁷ and Ilaria Puxeddu³, ¹University of Pisa, Rheumatology Unit, Pisa, Italy, ²Clinical and Experimental Medicine Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Pisa, Italy, ³University of Pisa, Pisa, Italy, ⁴University of Pisa, Rheumatology Unit, Pisa, Pisa, Italy, ⁵Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy, ⁶Azienda Ospedaliero Universitaria Pisana, Pisa, Pisa, Italy, ⁷University of Pisa, Pisa, Pisa, Italy
Background/Purpose: EGPA variably presents eosinophil (EOS)-related features and vasculitic manifestations. Recent introduction of mepolizumab (MEP) has revolutionized the treatment of EOS manifestations of EGPA. However,…
Abstract Number: 1843 • ACR Convergence 2025
Tissue Neutrophils in The Pathogenesis of Lupus Nephritis
Norio Hanata¹, Carmelo Carmona-Rivera¹, Victoria Hoffman², Kan Jiang³, davide Randazzo⁴, Meryl Waldman⁵, Sarfaraz Hasni⁶ and Mariana Kaplan¹, ¹Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, Bethesda, MD, ²Diagnostic and Research Services Branch, Division of Veterinary Resources, Office of Research Services, National Institutes of Health, Bethesda, MD, Bethesda, ³Biodata Mining and Discovery Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, Bethesda, ⁴Light Imaging Section, Office of Science and Technology, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, Bethesda, ⁵Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, Bethesda, PA, ⁶National Institutes of Health, Bethesda, MD
Background/Purpose: Systemic lupus erythematosus (SLE) is a multiorgan autoimmune disease that frequently affects the kidneys, with lupus nephritis (LN) being a major contributor to morbidity…
Abstract Number: 0493 • ACR Convergence 2025
Phase I Trial in Participants with Rheumatoid Arthritis and Healthy Volunteers with CIT-013, a First in Class NETosis Inhibitor
Maarten Kraan¹, Salah Hadi², Leonie Middelink³, Renato Chirivi³, Eric meldrum³, Naomi Klarenbeek⁴ and Patrick Round³, ¹Citryll BV, Den Dolder, Netherlands, ²ICON Netherlands BV, Groningen, Netherlands, ³Citryll BV, Oss, Netherlands, ⁴CHDR, Leiden, Netherlands
Background/Purpose: Aberrant Neutrophil Extracellular Trap (NET) production contributes to the pathophysiology of multiple inflammatory and autoimmune diseases including rheumatoid arthritis (RA). We report data of…
Abstract Number: 1814 • ACR Convergence 2025
Trapped in the NET: Impaired DNase function and targeted antibodies in the pathogenesis of pediatric lupus nephritis
Sohei Makita¹, Joyce Hui-Yuen², Bharati Matta³, Betsy Barnes⁴, Jenna Battaglia⁵, Tatiana Borja⁶, Boris Reizis⁷, Lydia Thomas⁸ and Kim Simpfendorfer⁹, ¹NYU, New York, ²North Shore LIJ Health System, Great Neck, NY, ³The Feinstein Institutes for Medical Research, Manhasset, NY, ⁴Northwell Health, Manhasset, NY, ⁵Northwell Health, Manhasset, ⁶Northwell Health- Cohen Children’s Medical Center, Elmhurst, NY, ⁷New York University Grossman School of Medicine, New York, NY, ⁸Northwell Health - Cohen Children's Medical Center, Lake Success, NY, ⁹Feinstein Institutes for Medical Research, Manhasset, NY
Background/Purpose: Up to 80% of patients with pediatric systemic lupus erythematosus (pSLE) can present with renal abnormalities. Treatment of pSLE is often difficult and includes…
Abstract Number: 0486 • ACR Convergence 2025
Safety of sarilumab in more than 1000 patients with rheumatoid arthritis in Japan by age group: a post-marketing surveillance study
Hideto Kameda¹, Sadatomo Tasaka², Toshiya Takahashi³, Naoki Soeda³, Katsuhisa Suzuki⁴ and Yoshiya Tanaka⁵, ¹Department of Internal Medicine, Toho University, Tokyo, Japan, ²Department of Respiratory Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan, ³Medical Affairs, Asahi Kasei Pharma Corporation, Tokyo, Japan, ⁴Medical Affairs, Sanofi K.K., Tokyo, Japan, ⁵University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
Background/Purpose: Sarilumab (SAR) is approved as monotherapy or in combination with conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) for treatment of patients (pts) with moderate-to-severely active…
Abstract Number: 1623 • ACR Convergence 2025
The Association of Calprotectin with Vascular Injury and Remodeling in Clinically-Isolated Aortitis
Katarina Kmetova¹, Gavin Poppei², Kavya Sugur³, Julia Ford⁴, Wenying Liang⁴, Emily Chong⁴, Srilakshmi Yalavarthi⁴, NaveenKumar Somanathapura⁴, Nataliya Milman⁵, Peter Merkel⁶, Ora Singer⁷ and Yu (Ray) Zuo⁴, ¹Division of Rheumatology, University of Michigan, Ann Arbor, Michigan, USA, Ann Arbor, MI, ²University of Michigan, Ann arbor, ³Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, ⁴University of Michigan, Ann Arbor, MI, ⁵the Ottawa Hospital, Ottawa, ON, Canada, ⁶University of Pennsylvania, Philadelphia, PA, ⁷University of Michigan, Huntington Woods, MI
Background/Purpose: Clinically-isolated aortitis (CIA), defined as inflammation of the aortic wall in the absence of extra-aortic arterial involvement, systemic vasculitis, or other associated autoimmune disease,…
Abstract Number: 0431 • ACR Convergence 2025
Calprotectin Serum levels: a potential neutrophil activation biomarker to monitor treatment response in Rheumatoid Arthritis
Sangeeta Kumari¹, Eric meldrum¹, Josephine Stein¹, Tirza Bruurmijn¹, Robin de Jong², Katerina Pardali¹, Maarten Kraan¹, Renato Chirivi¹, Rogier Thurlings³ and Michael Nurmohamed², ¹Citryll BV, Oss, Netherlands, ²Reade, Amsterdam, Netherlands, ³Radboudumc, Nijmegen, Netherlands
Background/Purpose: Calprotectin is a protein highly expressed in myeloid cells and its elevated presence in blood, and the GI tract is associated with immune mediated…
Abstract Number: 1619 • ACR Convergence 2025
Systemic Immune-Inflammation Index Is Superior to Neutrophil-to-Lymphocyte Ratio for Assessing Disease Activity in Polymyalgia Rheumatica and Giant Cell Arteritis
Gaston Ariel Ghio¹, Maria Gabriela Paz Machado², Evelin Encalada², Imma Perez Nadales², Georgina Salvador Alarcón², Elena Riera Alonso², manel pujol², Marta Pujol Teixidor² and Silvia Martinez Pardo², ¹Hospital Universitari Mùtua Terrassa, Terrassa, Catalonia, Spain, ²Hospital Universitari Mùtua Terrassa, Terrassa, Spain
Background/Purpose: Polymyalgia rheumatica (PMR) and giant cell arteritis (GCA) are chronic inflammatory disorders predominantly affecting patients over 50. Despite unclear etiopathogenesis, both conditions share central…
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…

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