Abstracts tagged "Cell Death"

Abstract Number: 2582 • ACR Convergence 2025
Inflammatory Cell Death and Impaired Efferocytosis Drive Monocyte and Macrophage Dysfunction in VEXAS Syndrome.
Paul Breillat¹, Samuel Magaziner², Stéphane Camus³, Lea Dionet⁴, Quentin Delcros⁵, Federica Pallotti⁶, Kevin Chevalier⁵, Margot Poux⁷, Olivia Lenoir⁸, Pierre-Louis Tharaux⁵, Olivier Kosmider⁹, David Beck¹⁰ and Benjamin Terrier¹¹, ¹INSERM, PARIS ¹⁷, Ile-de-France, France, ²Center for Human Genetics and Genomics, NYU Grossman School of Medicine, New York, NY, USA., New York, NY, ³Université de Paris, INSERM UMR⁹⁷⁰, Paris Cardiovascular Research Center, Paris, France., PARIS, France, ⁴INSERM, Paris, France, ⁵Paris Cardiovascular Research Center, Université Paris Cité, INSERM U⁹⁷⁰, Paris, France, PARIS, France, ⁶Internal Medicine and Clinical Immunology, Rennes, France, ⁷Université de Paris, PARIS ⁰⁴EME, France, ⁸Paris Cardiovascular Research Center, Université Paris Cité, INSERM U⁹⁷⁰, Paris, France, PARIS, Ile-de-France, France, ⁹AP-HP, Hopital Cochin, Institut Cochin, CNRS UMR⁸¹⁰⁴, INSERM U¹⁰¹⁶ Université Paris Cité Paris France., PARIS, France, ¹⁰Center for Human Genetics and Genomics, NYU Grossman School of Medicine. Division of Rheumatology, Department of Medicine, NYU Grossman School of Medicine. Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY, USA, New York, NY, ¹¹Cochin Hospital, Paris, France
Background/Purpose: VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) is a life-threatening systemic disorder characterized by inflammation and increased risk of opportunistic infections. VEXAS results from…
Abstract Number: 1132 • ACR Convergence 2025
DDX3X Regulates Gout Inflammation via NLRP3 Inflammasome Activation and Macrophage Pyroptosis Crosstalk
Linrui Zhong, Tianyi Lei, Quanbo Zhang and Yufeng Qing, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China (People's Republic)
Background/Purpose: Pyroptosis is closely linked to acute flare-ups and spontaneous remission of gout. However, the specific mechanisms by which pyroptosis regulates gout inflammation remain unclear.…
Abstract Number: 0970 • ACR Convergence 2025
Genomic instability in systemic sclerosis is promoted by metabolic remodelling via a FOXO1-dependent axis
Lamia Khan¹, Junqin Wang², Aishwarya Iyer², Desiree Redmond², Dylan Hennessey², Sandra O'Keefe², Jan Storek³, Charmaine van Eeden², Robert Gniadecki² and Mohammed Osman¹, ¹University of Alberta, Edmonton, AB, Canada, ²Department of Medicine, University of Alberta, Edmonton, AB, Canada, ³University of Calgary, Calgary, AB, Canada
Background/Purpose: Systemic sclerosis (SSc) is a life-threatening autoimmune disease with limited treatment options, including autologous hematopoietic stem cell transplantation (AHSCT). We recently showed that dermal…
Abstract Number: 0948 • ACR Convergence 2025
Presentation of Apoptotic Cell-Derived Autoantigens in Systemic Autoimmune Disease
Lance Peterson¹, Hannah KL De Cleene², Cheryl Lichti², David Bending³ and Kodi Ravichandran², ¹Rheumatology and Immunology, Pediatrics, Washington University School of Medicine, St. Louis, MO, ²Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, ³Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, England, United Kingdom
Background/Purpose: Systemic lupus erythematosus is a chronic, multisystem autoimmune disease characterized by the dysregulated clearance of dying cells, which results in the release of damage-associated…
Abstract Number: 0918 • ACR Convergence 2025
Retention of variant forms of TNFR1 in the Golgi induces stress responses and monocyte activation in systemic Juvenile Idiopathic Arthritis (sJIA)
Anthony Cruz¹, Krisztian Csomos¹, Boglarka Ujhazi¹, Hiroto Nakano², Marissa Krantz³, Sophia Chou⁴, Emily Rosenbaum¹, Tianmin Fu⁵, Dirk Foell⁶, Rae Yeung⁷, Pamela Weiss⁸, Faiza Naz⁹, Ly-Lan Bergeron¹, Michelle Millwood¹⁰, Carol Lake¹¹, Emely Verweyen⁶, Grant Schulert¹², Stefania Dell'orso⁹, Hao Wu¹³, Zuoming Deng¹⁴, davide Randazzo¹⁵ and Michael Ombrello¹⁶, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), NIH, Bethesda, MD, ²NIAMS, NIH, Bethesda, MD, ³University of Rochester, Bethesda, MD, ⁴National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), NIH, Rockville, MD, ⁵Ohio State University College of Medicine, Columbus, OH, ⁶University Hospital Muenster, Muenster, Germany, ⁷The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada, ⁸Childrens Hospital of Philadelphia, Philadelphia, PA, ⁹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ¹⁰National Institutes of Health (NIH), Bethesda, MD, ¹¹NIH, GAITHERSBURG, MD, ¹²Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ¹³Harvard University, Cambridge, MA, ¹⁴Biodata Mining and Discovery Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ¹⁵Light Imaging Section, Office of Science and Technology, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, Bethesda, ¹⁶National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), North Bethesda, MD
Background/Purpose: Systemic juvenile idiopathic arthritis (sJIA) is severe and poorly understood inflammatory condition. Tumor necrosis factor receptor 1 (TNFR1) is activated by TNF and is…
Abstract Number: 0833 • ACR Convergence 2024
Novel Loss of Function Variants in the Death Domain of Tumor Necrosis Factor Superfamily Receptor 1A (TNFRSF1A) in Children with Systemic Juvenile Idiopathic Arthritis (sJIA)
Anthony Cruz¹, Hiroto Nakano², Sophia Chou³, Marissa Krantz⁴, Tianmin Fu⁵, Davide Randazzo⁶, Zuoming deng⁷, Hao Wu⁸ and Michael Ombrello⁹, and INCHARGE Consortium, ¹National Institutes of Health, Bethesda, MD, ²NIAMS, NIH, Bethesda, MD, ³National Institutes of Health, Rockville, MD, ⁴University of Rochester, Rochester, NY, ⁵Ohio State University College of Medicine, Columbus, OH, ⁶NIAMS/NIH, Bethesda, MD, ⁷National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, Bethesda, MD, ⁸Harvard Medical School, Boston, MA, ⁹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), North Bethesda, MD
Background/Purpose: Systemic juvenile idiopathic arthritis (sJIA) is an inflammatory condition characterized by recurring fevers, arthritis and hyperinflammation, but its exact etiology is unknown. Tumor necrosis…
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: 0097 • ACR Convergence 2024
The Human Lupus TREX1 D18N Mutation Engineered in C. Elegans Leads to Cell Death. What Can We Learn About Lupus Using C. Elegans?
Htay Htay Kyi¹, Patricia Barreto², Yeshaswi Pulijala³, Thejasvi Venkatachalam³ and Martha Soto², ¹Rutgers New Jersey Medical School, Jersey City, NJ, ²Robert Wood Johnson Medical School, Piscataway, NJ, ³RWJ-PATHOLOGY-RESEARCH-PISC, Piscataway
Background/Purpose: TREX1 gene encodes the three prime repair exonuclease 1 enzyme that degrades DNA. TREX1 plays a key role in genomic DNA degradation, cell death…
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: 0050 • ACR Convergence 2023
Anti-Citrullinated Histone Antibody CIT-013, a Dual Action Therapeutic for Neutrophil Extracellular Trap Associated Autoimmune Disease
Maarten van der Linden¹, Sangeeta Kumari¹, Daphne Montizaan¹, Stephanie van Dalen¹, Annemarie Kip¹, Martyn FOSTER², Inge Reinieren¹, Elsa Neubert³, Luise Erpenbeck⁴, Tirza Bruurmijn¹, Peter van Zandvoort¹, Paul Vink¹, Eric Meldrum⁵, Helmuth van Es¹ and Renato Chirivi¹, ¹Citryll BV, Oss, Netherlands, ²Experimental Pathology Consultancy, Benfleet, United Kingdom, ³Leiden Academic Centre for Drug Research, Leiden, Netherlands, ⁴University Medical Center Münster, General Dermatology and Venereology, Münster, Germany, ⁵Citryll BV, Basel, Switzerland
Background/Purpose: Neutrophil extracellular traps (NETs) contribute to the pathophysiology of multiple inflammatory and autoimmune diseases (Chirivi et al., 2021; DOI: 10.1038/s41423-020-0381-3). Targeting the NETosis pathway…
Abstract Number: 0258 • ACR Convergence 2023
Understanding Monogenic Behçet’s Disease Pathophysiology: Impact of Pathogenic Variant L227X Associated with Autoinflammatory A20 Haploinsufficiency on Cellular Survival and Proliferation
Patricia Aires¹, Daniela Pioto¹, Maria Teresa TErreri² and Sandro Perazzio³, ¹Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil, ²UNIFESP, São Paulo, Brazil, ³Universidade de Sao Paulo (Unifesp); Universidade de São Paulo (USP); Fleury Laboratories, São Paulo, Brazil
Background/Purpose: A20, encoded by TNFAIP3, plays a critical role in NF-κB pathway regulation. A20 haploinsufficiency is a monogenic disorder form of Behçet's disease with a…
Abstract Number: 0384 • ACR Convergence 2023
Targeting NET Formation in Early RA Patients; A Spin-off Study from the NORD-STAR
Bas Dijkshoorn¹, Ting Wang², Gerdur Maria Grondal³, Daisy Vedder⁴, Anna Rudin⁵, Dan Nordstrom⁶, Bjorn Gudbjornsson⁷, Kristina Lend⁸, Till Uhlig⁹, Espen Haavardsholm⁹, Merete L Hetland¹⁰, Marte Schrumpf Heiberg¹¹, Mikkel Østergaard¹², Kim Horslev-Petersen¹³, John Lampa¹⁴, Ronald van Vollenhoven¹⁵, Christian Lood² and Michael Nurmohamed¹⁶, ¹Amsterdam Rheumatology and Immunology Center, Location Reade, Amsterdam, Netherlands, ²University of Washington, Seattle, WA, ³Department for Rheumatology, Landspitali University Hospital, Reykjavik, Iceland, ⁴Reade, Amsterdam, Netherlands, ⁵Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, ⁶Helsinki University Hospital, Helsinki, Finland, ⁷Centre for Rheumatology Research, University Hospital, Reykjavik, Iceland, ⁸Amsterdam UMC, Karolinska Institute, Stockholm, Sweden, ⁹Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway, ¹⁰Copenhagen Center for Arthritis Research, Rigshospitalet, Copenhagen, Denmark, ¹¹Diakonhjemmet Hospital, Oslo, Norway, ¹²Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Centre for Head and Orthopaedics, Rigshospitalet; University of Copenhagen, Copenhagen, Denmark, ¹³Danish Hospital for Rheumatic Diseases, Sønderborg, Denmark, ¹⁴Stockholm County, Hãsselby, Sweden, ¹⁵Amsterdam University Medical Centers, Amsterdam, Netherlands, ¹⁶Amsterdam University Medical Centers, Kortenhoef, Netherlands
Background/Purpose: The formation of neutrophil extracellular traps (NETs) with extrusion of nuclear, granular and cytosolic components from a dying neutrophil, has been described extensively in…
Abstract Number: 0864 • ACR Convergence 2023
Proteomic Analysis of Circulating Neutrophils from Osteoarthritis Patients Shows Metabolic Dysregulation That Is Associated with Decreased Physiologic Apoptosis
Jennifer Amsler¹, Morgane Le Gall², Camille Daste³, François Rannou³ and Véronique Witko-Sarsat², ¹Institut Cochin, Bern, Switzerland, ²Institut Cochin, Paris, France, ³Hôpital Cochin, Paris, France
Background/Purpose: Osteoarthritis (OA) has long been thought to be only of local mechanical origin. However, it has been shown recently that there is a phenotype…
Abstract Number: 0920 • ACR Convergence 2023
Proinflammatory Neutrophils and NETs Mediate Skin and Kidney Inflammation During Lupus Flare in Asymptomatic Lupus-prone Mice Triggered by UVB
Xing Lyu¹, minghui li¹, ping zhang², Wei Wei³, victoria werth⁴ and Ming-Lin Liu⁵, ¹Tianjin Medical University, Tianjin, China, ²Beaumont Hospital Royal Oak, Royal Oak, MI, ³Tianjin Medical University General Hospital, Tianjin, China, ⁴University of Pennsylvania, Wynnewood, PA, ⁵University of Pennsylvania, Philadelphia, PA
Background/Purpose: Ultraviolet B (UVB) exposure triggers lupus flare by worsening both skin lesions and systemic symptoms, i.e. lupus nephritis. We recently reported that UVB exposure…
Abstract Number: 1749 • ACR Convergence 2023
Fatty Acid Synthase Is a Critical Repressor of Ferroptosis in Rheumatoid Arthritis
Qi Cheng, Mo chen, Xin chen, Yifan Xie, Yan Du and Huaxiang wu, The Second Affiliated Hospital Of Zhejiang University School Of Medicine, Hangzhou, China
Background/Purpose: Rheumatoid arthritis (RA) is a systemic autoimmune disease with synovial inflammation as the main pathological feature, and can eventually lead to irreversible joint or…

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