Abstracts tagged "hypoxia"

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: 0887 • ACR Convergence 2023
Dapagliflozin Modulates Inflammation and Germinal Centers in Lupus by Increasing Regulatory T Cells
Javier Rangel-Moreno¹, Maria de la Luz Garcia-Hernandez², Mary O'Connell³, Daria Krenitsky⁴, Maria Fernanda Ossa-Echeverri¹, Mark Lusco⁵, John Looney⁶ and Jennifer Anolik³, ¹University of Rochester, Rochester, NY, ²University of Rochester, West Henrietta, NY, ³University of Rochester Medical Center, Rochester, NY, ⁴Division of Allergy, Immunology and Rheumatology/University of Rochester Medical Center, Rochester, NY, ⁵Department of Pathology and Laboratory Medicine/University of Rochester, Rochester, NY, ⁶Division of Allergy, Immunology and Rheumtology, Rochester, NY
Background/Purpose: Nephritis is one of the most severe manifestations of lupus, affecting 40-70% of patients. Though immune-targeted therapies have improved, a significant number of patients…
Abstract Number: 1661 • ACR Convergence 2022
Osteoclastogenesis and Vascular Endothelial Growth Factor Blood Levels in Patients with Systemic Sclerosis with and Without Calcinosis Cutis
Antonia Valenzuela¹, Guillermo Perez², Carolina Iturriaga² and Rebeca Montalva², ¹Pontificia Universidad Catolica de Chile, Santiago, Chile, ²Pontificia Universidad Catolica de Chile, Santiago de Chile, Chile
Background/Purpose: Calcinosis cutis is a debilitating complication of systemic sclerosis (SSc) with no effective treatments. Although the pathogenesis of SSc-related calcinosis remains unknown, there is…
Abstract Number: 0066 • ACR Convergence 2020
AMP Deaminase 2 Is Expressed on the Surface of Human Immune Cells as a Novel Regulator of Extracellular Adenosine Metabolism
Lisa Ehlers¹, Aditi Kuppe¹, Marieluise Kirchner², Alexandra Damerau¹, Cindy Strehl¹, Frank Buttgereit³ and Timo Gaber¹, ¹Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany, ²Max Delbrück Center for Molecular Medicine, BIH Core Facility Proteomics, Berlin, Germany, ³Charité University Medicine, Berlin, Germany
Background/Purpose: Adenosine and its nucleotides represent crucial immunomodulators in the extracellular environment. ATP and ADP are released from stressed cells in states of inflammation, whereas…
Abstract Number: 0116 • ACR Convergence 2020
The in Vitro 3D Fracture Gap Model: A Tool for Preclinical Testing
Moritz Pfeiffenberger¹, Alexandra Damerau¹, Paula Hoff², Annemarie Lang¹, Frank Buttgereit³ and Timo Gaber¹, ¹Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany, ²Endokrinologikum Berlin, Rheumatologie, Berlin, Germany, ³Charité University Medicine, Berlin, Germany
Background/Purpose: Approximately 10% of fractures lead to significant fracture healing disorders. Of note, especially immunosuppressed patients with ongoing inflammation show difficulties in the correct course…
Abstract Number: 0991 • ACR Convergence 2020
Pathogenic, Glycolytic PD-1+ B Cells Accumulate in the Hypoxic RA Joint
Achilleas Floudas¹, Nuno Neto², Viviana Marzaioli³, Kieran Murray⁴, Barry Moran⁵, Michael Monaghan⁶, Candice Low⁷, Ronan Mullan⁸, Navin Rao⁹, Vinod Krishna⁹, Sunil Nagpal¹⁰, Douglas Veale¹¹ and Ursula Fearon³, ¹Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Dublin, Ireland, ²Department of Mechanical and Manufacturing Engineering, Dublin, Dublin, Ireland, ³Molecular Rheumatology, Trinity College Dublin, Dublin, Dublin, Ireland, ⁴Saint Vincent's University Hospital, Dublin 4, Dublin, Ireland, ⁵Trinity Biomedical Sciences Institute, Dublin, Ireland, ⁶Department of Mechanical and Manufacturing Engineering, Dublin, Ireland, ⁷EULAR Centre for Arthritis and Rheumatic diseases, St Vincents University Hospital, UCD, Dublin, Ireland, ⁸Adelaide and Meath Hospital, Dublin, Dublin, Ireland, ⁹Janssen R&D, Spring House, PA, ¹⁰Janssen Research & Development, Collegeville, PA, ¹¹EULAR Centre for Arthritis and Rheumatic Diseases, St Vincents University Hospital, UCD, Dublin, Dublin, Ireland
Background/Purpose: Rheumatoid arthritis (RA) often has a progressive and debilitating course, with significant impact on the patient’s quality of life. Despite the long-known association with…
Abstract Number: 1801 • ACR Convergence 2020
An Engineered Extracellular Matrix‐rich Decellularized Substrate Based Podocytes Culture System to Study Intracellular Complement Production and Activation
Abhigyan Satyam¹, Maria Tsokos² and George Tsokos², ¹Division of Rheumatology & Clinical Immunology/Beth Israel Deaconess Medical Center/Harvard Medical School, boston, ²Division of Rheumatology & Clinical Immunology/Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA
Background/Purpose: Current technologies do not support long-term cell viability, differentiation and maintenance of podocytes. We developed a biophysical approach, termed macromolecular crowding (MMC), to create…
Abstract Number: 2862 • 2019 ACR/ARP Annual Meeting
Hypoxia Resistant Pathogenic B Cells Accumulate in the RA Synovial Tissue in a CXCR3 Dependent Manner
Achilleas Floudas¹, Candice Low ², Monika Biniecka ³, Kieran Murray ², Ronan Mullan ⁴, Douglas Veale ⁵ and Ursula Fearon ⁶, ¹Trinity Biomedical Sciences Institu, DUBLIN, Ireland, ²Saint Vincent's University Hospital, Dublin, Ireland, ³Molecular Rheumatology, Trinity Biomedical Sciences Institute, DUBLIN, Ireland, ⁴Dept of Rheumatology, Tallaght University Hospital, TCD, Dublin, Ireland, ⁵EULAR Centre For Arthritis And Rheumatic Diseases and The Conway Institute, Dublin, Ireland, ⁶Molecular Rheumatology, Trinity Biomedical Sciences Institute, TCD, Dublin, Ireland
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease of unknown and complex aetiology with severe detrimental effects for the patient’s quality of life.…

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