Abstracts tagged "neutrophils"

Abstract Number: 2358 • ACR Convergence 2023
Neutrophil Extracellular Traps Induce Endothelial-to-Mesenchymal Transition and Associate with Vascular Complications in Scleroderma
Ramadan Ali¹, Wenying Liang¹, Claire Shiple¹, Rosemary Gedert², Suiyuan Huang¹, Cyrus Sarosh¹, Eliza Pei-Suen Tsou¹, Dinesh Khanna¹ and Jason Knight¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Onsted, MI
Background/Purpose: Systemic sclerosis (SSc, also known as scleroderma) is a disease characterized by fibrosis, autoimmunity, and vasculopathy. Many devastating complications such as digital ulcerations, scleroderma…
Abstract Number: 079 • 2023 Pediatric Rheumatology Symposium
Dynamics of Neutrophil Activation in Repeated TLR-9-Induced Mouse Model of Macrophage Activation Syndrome
Natsumi Inoue, Richard Chhaing, Sanjeev Dhakal, Thuy Do and Grant Schulert, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
Background/Purpose: Macrophage activation syndrome (MAS) is a life-threatening complication of rheumatic diseases including systemic juvenile idiopathic arthritis (SJIA). SJIA shows prominent neutrophil activation with expansion…
Abstract Number: 130 • 2023 Pediatric Rheumatology Symposium
Levels of Neutrophil Extracellular Traps Correlate with Disease Activity in Pediatric Lupus
Lydia Thomas¹, Jenna Battaglia², Bharati Matta³, Kim Simpfendorfer⁴, Joyce Hui-Yuen⁵ and Betsy Barnes³, ¹Cohen Children's Medical Center, Northwell Health, New Hyde Park, NY, ²Northwell Health, New York, NY, ³Center for Autoimmune, Musculoskeletal, and Hematopoietic Diseases Research, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, ⁴Robert S. Boas Center for Genomics and Human Genetics, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, ⁵Cohen Children's Medical Center, Northwell Health, Lake Success, New York; Center for Autoimmune, Musculoskeletal, and Hematopoietic Diseases Research, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY
Background/Purpose: Pediatric lupus (pSLE) is a multisystemic autoimmune disease characterized by autoantibody production leading to organ damage. Neutrophil extracellular traps (NETs) are considered a potential…
Abstract Number: 0690 • ACR Convergence 2022
The Physiological Ketone Body Beta-Hydroxybutyrate Potently Neutralizes APS-Associated NETosis
Ajay Tambralli¹, Alyssa Harbaugh¹, Christine Rysenga¹, Kaitlyn Sabb¹, Srilakshmi Yalavarthi¹, Claire Hoy¹, Yu (Ray) Zuo¹ and Jason S Knight², ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Division of Rheumatology, Ann Arbor, MI
Background/Purpose: Malleable metabolic pathways guide both productive and pathological neutrophil functions, including neutrophil extracellular trap release (NETosis). NETosis plays an important role in APS pathophysiology.…
Abstract Number: 2021 • ACR Convergence 2022
Early Histopathological Changes of the Salivary Glands Associated with the Development of Primary Sjögren’s Syndrome
Xiaomei Shan¹, Clara Reichardt¹, Jeeshan Singh¹, Anne Zeitler², Christine Schauer¹, Jasmin Knopf¹, Martin Herrmann¹, Gerhard Grossmayer¹, Georg Schett¹ and Luis Munoz¹, ¹Universitätsklinikum Erlangen, Erlangen, Germany, ²Friedrich-Alexander University Erlangen Nürnberg, Erlangen, Germany
Background/Purpose: Primary Sjögren's syndrome (PSS) is a chronic inflammatory disease affecting exocrine glands including salivary and lacrimal glands that leads to dry eyes and mouth…
Abstract Number: 0692 • ACR Convergence 2022
The Interplay Between Lipid Peroxidation and Neutrophil Extracellular Trap (NET) Formation in APS Pathogenesis
Naveen Kumar S K¹, Claire Hoy¹, Christine Rysenga¹, Srilakshmi Yalavarthi¹, Cyrus Sarosh², Sherwin Navaz¹, Jacqueline Madison¹, Jason S Knight³ and Yu (Ray) Zuo¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Temperance, MI, ³University of Michigan, Division of Rheumatology, Ann Arbor, MI
Background/Purpose: Lipid peroxidation is the result of disrupted redox homeostasis and functions as a key component in various cell death programs. Neutrophil extracellular trap (NET)…
Abstract Number: 2266 • ACR Convergence 2022
Platelet-selectin Prime Lupus Neutrophils to Produce Mitochondrial ROS and Participate in SLE Pathogenesis
Marc Scherlinger¹, Pierre Vacher², Vivien Guillotin³, Isabelle Douchet⁴, Christophe Richez⁵ and Patrick Blanco⁴, ¹BIDMC Harvard University, Boston, MA, ²INSERM U1218, Bordeaux, France, ³CHU de Bordeaux, Bordeaux, France, ⁴UMR-CNRS 5164 Immunoconcept, Bordeaux, France, ⁵CHRU Bordeaux, Bordeaux, France
Background/Purpose: In patients with active systemic lupus erythematosus (SLE), circulating platelets have an activated phenotype characterized by the expression of P-selectin (CD62P). We have shown…
Abstract Number: 0693 • ACR Convergence 2022
Low Neutrophil Ectonucleotidase Activity Drives Neutrophil-Platelet Aggregation and Platelet Activation in Antiphospholipid Syndrome (APS)
Naveen Kumar S K¹, Claire Hoy¹, Srilakshmi Yalavarthi¹, Cyrus Sarosh², Kaitlyn Sabb¹, Christine Rysenga¹, Jacqueline Madison¹, Yu Zuo¹ and Jason S Knight³, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Temperance, MI, ³University of Michigan, Division of Rheumatology, Ann Arbor, MI
Background/Purpose: By converting extracellular ATP into homeostatic adenosine, the ectonucleotidases CD39 (ATP to AMP) and CD73 (AMP to adenosine) dictate extracellular purinergic gradients and as…
Abstract Number: 2269 • ACR Convergence 2022
Anti-NET Antibodies in Antiphospholipid Antibody-positive Patients: Results from the Antiphospholipid Syndrome Alliance for Clinical Trials and InternatiOnal Networking (APS ACTION) Clinical Database and Repository (“Registry”)
Yu (Ray) Zuo¹, Sherwin Navaz¹, Alex Tsodikov¹, Katarina Kmetova², Claire Hoy¹, Srilakshmi Yalavarthi¹, Danieli Castro Oliveira de Andrade³, Maria G. Tektonidou⁴, Savino Sciascia⁵, Vittorio Pengo⁶, Guillermo Ruiz-Irastorza⁷, H Michael Belmont⁸, maria gerosa⁹, Paul fortin¹⁰, Guilherme de Jesús¹¹, D. Ware Branch¹², Laura Andreoli¹³, Esther Rodriguez Almaraz¹⁴, Michelle Petri¹⁵, Ricard Cervera¹⁶, Rohan Willis¹⁷, Doruk Erkan¹⁸ and Jason S Knight¹⁹, ¹University of Michigan, Ann Arbor, MI, ²Division of Rheumatology, University of Michigan, Ann Arbor, MI, ³Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil, ⁴National and Kapodistrian University of Athens, Athens, Greece, ⁵University of Turin, Torino, Italy, ⁶Padova University Hospital, Padova, Italy, ⁷Autoimmune Diseases Research Unit, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, UPV/EHU, Barakaldo, Spain, ⁸NYU School of Medicine, New York, NY, ⁹University of Milan, Milano, Italy, ¹⁰CHU de Québec, Pavillon CHUL, Québec, Canada, ¹¹Universidade do Estado do Rio de Janeiro, Rio De Janeiro, Brazil, ¹²University of Utah, Salt Lake City, UT, ¹³Rheumatology and Clinical Immunology Unit, ASST Spedali Civili and University of Brescia, Brescia, Italy, ¹⁴Hospital Universitario 12 de Octubre, Madrid, Spain, ¹⁵Johns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, MD, ¹⁶Hospital Clínic de Barcelona, Barcelona, Spain, ¹⁷University of Texas Medical Branch, Galveston, TX, ¹⁸Hospital for Special Surgery, New York, NY, ¹⁹University of Michigan, Division of Rheumatology, Ann Arbor, MI
Background/Purpose: The release of neutrophil extracellular traps (NETs) by hyperactive neutrophils plays a role in the thromboinflammatory phenotype of APS. Previous work has demonstrated that…
Abstract Number: 0877 • ACR Convergence 2022
Neutrophils Extracellular Traps Formation May Serve as a Biomarker for Disease Activity in Oligoarticular Juvenile Idiopathic Arthritis
Merav Heshin-Bekenstein¹, Szilvia Baron², Grant Schulert³, Anna Shusterman⁴, Rachel Shukrun⁴, Yoav Binenbaum⁴ and Ronit Elhasid⁵, ¹Dana Dwek Children's Hospital, Tel Aviv Medical Center Israel, Binyamina, Israel, ²Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel, ³Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁴Tel Aviv Medical Center, Tel Aviv, Israel, ⁵Dana Children's Hospital, Tel Aviv Medical Center, Tel Aviv, Israel
Background/Purpose: Juvenile idiopathic arthritis (JIA) is the most common chronic rheumatic disease in children, causing significant morbidity. Despite the dramatic improvement in treatment, many patients…
Abstract Number: 2271 • ACR Convergence 2022
Circulating Calprotectin: A Potential New Biomarker for “Non-Criteria” Clinical Manifestations of Antiphospholipid Syndrome
Claire Hoy¹, Naveen Kumar S K¹, Sherwin Navaz¹, Srilakshmi Yalavarthi¹, Cyrus Sarosh², Noah Peters¹, Tristin Smith¹, Gary Norman³, Gabriel Figueroa Parra⁴, Johann Gudjonsson¹, J. Michelle Kahlenberg¹, Jacqueline Madison¹, Ali Duarte-Garcia⁴, Jason S Knight⁵ and Yu (Ray) Zuo¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Temperance, MI, ³INOVA Diagnostics, San Diego, CA, ⁴Mayo Clinic, Rochester, MN, ⁵University of Michigan, Division of Rheumatology, Ann Arbor, MI

Background/Purpose: While thrombosis and pregnancy loss are the best-known features of APS, many patients also exhibit "non-criteria" manifestations such as thrombocytopenia and heart valve damage.…
Abstract Number: 0045 • ACR Convergence 2022
Rheumatoid Arthritis Patient-derived Anti-citrullinated Protein Antibodies (ACPAs) Ameliorate Joint Inflammation in Early Collagen-antibody Induced Arthritis (CAIA)
Alejandro Gomez¹, Camille Brewer¹, Jae-Seung Moon², Suman Acharya¹, Tobias V. Lanz¹, Qian Wang¹, Gundula Min-Oo³, Anita Niedziela-Majka³ and William Robinson⁴, ¹Stanford University, Stanford, CA, ²Stanford University, Palo Alto, CA, ³Gilead Sciences, Foster City, CA, ⁴Stanford University School of Medicine, Palo Alto, CA
Background/Purpose: ACPAs are present in two-thirds of patients with rheumatoid arthritis (RA) and are associated with higher risks for severe bone erosions. The pathogenic role…
Abstract Number: 1156 • ACR Convergence 2022
Serum Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF) Is Increased in Patients with Active Ankylosing Spondylitis (AS) and Persists Despite Anti-TNF Treatment
Charalampos Papagoras¹, Styliani Tsiami², Akrivi Chrysanthopoulou¹, Ioannis Mitroulis¹ and Xenofon Baraliakos³, ¹First Department of Internal Medicine and Laboratory of Molecular Hematology, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece, ²Rheumazentrum Ruhrgebiet, Herne, Ruhr-University Bochum, Herne, Germany, ³Rheumazentrum Ruhrgebiet Herne, Herne, Germany
Background/Purpose: There is increasing evidence of the pathogenetic role of monocytes and neutrophils in AS, while the neutrophil-to-lymphocyte ratio correlates with disease activity (1). Granulocyte-Monocyte…
Abstract Number: 0049 • ACR Convergence 2022
IL-18 Receptor-α Signaling Pathway Contributes to Autoantibody-induced Arthritis via Neutrophil Recruitment
Shinjiro Kaieda and Tomoaki Hoshino, Kurume University School of Medicine, Kurume, Japan
Background/Purpose: We have previously reported that IL-18 levels in the lungs, serum and bronchoalveolar lavage fluid (BALF) were increased in patients with idiopathic pulmonary lung…
Abstract Number: 1321 • ACR Convergence 2022
Systemic Inflammatory-based Scores and Bone Turnover Ratio as Novel Diagnostic Tools for Chronic Nonbacterial Osteomyelitis (CNO) of the Sternocostoclavicular Region in Adults
Anne Leerling, Juliette Faber, Natasha Appelman-Dijkstra, Olaf Dekkers and Elizabeth Winter, Leiden University Medical Center, Leiden, Zuid-Holland, Netherlands
Background/Purpose: Chronic non-bacterial osteomyelitis (CNO) in adults exhibits as sterile osteitis and consequent disrupted bone metabolism favoring bone formation of the sternocostoclavicular region (SCCH). Diagnosis…

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