Abstracts tagged "immunology"

Abstract Number: 0651 • ACR Convergence 2022
Inflammatory Dendritic Cell Drive Intra-renal T Cells to Double-negative T Cell in Lupus Nephritis
Latha Prabha Ganesan, Shane Bruckner, Noushin Saljoughian, James Turman, Murugesan Rajaram, Brad Rovin, Wael Jarjour and Samir Parikh, The Ohio State University, Columbus, OH
Background/Purpose: The pathogenesis of lupus nephritis (LN) is incompletely understood stalling progress and resulting in suboptimal patient outcomes. We previously identified a novel inflammatory dendritic…
Abstract Number: 0989 • ACR Convergence 2022
Regulatory T Cell Defects in SLE and Therapy with a Novel IL-2 Mutein: Phase 1 Clinical Results with Efavaleukin Alfa
Nandita Sarkar¹, Xuguang Hu¹, Nadia Tchao¹, Richard Furie², Alan Kivitz³, Stanley B Cohen⁴ and Kevin Gorski⁵, ¹Amgen Inc., South San Francisco, CA, ²Northwell Health, Great Neck, NY, ³Department of Rheumatology, Altoona Center for Clinical Research, Duncansville, PA, ⁴Metroplex Clinical Research Center and University of Texas Southwestern Medical Center, Dallas, TX, ⁵Amgen, Inc., Thousand Oaks, CA
Background/Purpose: Regulatory T cells (Treg) are critical for maintaining self-tolerance and preventing autoimmunity, and IL-2 is essential for their development, survival and suppressive function. Defects…
Abstract Number: 1658 • ACR Convergence 2022
Association Between Anti-Sjögren Syndrome/Scleroderma Autoantigen 1 (SSSCA1) Antibodies and Cancer in Systemic Sclerosis
Rachel Wallwork¹, Livia Casciola-Rosen¹ and Ami Shah², ¹Johns Hopkins University, Baltimore, MD, ²Johns Hopkins Rheumatology, Baltimore, MD
Background/Purpose: We sought to examine the association between anti-Sjögren syndrome/scleroderma autoantigen 1 (SSSCA1) antibody and cancer in systemic sclerosis (SSc). We also describe the frequency…
Abstract Number: 1745 • ACR Convergence 2022
Effects of Excess IL-18 in Mixed Inflammatory Environments
Vinh Dang¹, Jemy Varghese¹, Emily Landy², Lauren Van Der Kraak², Leonardo Huang¹, Anastasia Frank-Kamenetskii¹ and Scott Canna¹, ¹Children's Hospital of Philadelphia, Philadelphia, PA, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Interleukin 18 (IL-18) is an inflammasome-activated, IL-1 family cytokine that canonically induces interferongamma (IFNg). IL-18 activity is potently inhibited by a soluble, IFNg-inducible antagonist,…
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: 0506 • ACR Convergence 2022
Immunophenotypic Categorization of Systemic Immune-mediated Diseases
Shinji Izuka¹, Toshihiko Komai¹, Takahiro Itamiya¹, Mineto Ota², Saeko Yamada¹, Yasuo Nagafuchi², Hirofumi Shoda¹, Kosuke Matsuki³, Kazuhiko Yamamoto⁴, Tomohisa Okamura² and Keishi Fujio¹, ¹Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Bunkyo City, Tokyo, Japan, ²Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Department of Functional Genomics and Immunological Diseases, Graduate School of Medicine, The University of Tokyo, Bunkyo City, Tokyo, Japan, ³Research Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Japan, ⁴Laboratory for Autoimmune Diseases, Center for Integrative Medical Sciences, the Institute of Physical and Chemical Research (RIKEN), Wako, Saitama, Japan
Background/Purpose: Systemic immune-mediated diseases are heterogeneous, and the pathogenesis varies among and within each disease. Some studies tried to stratify patients with immune-mediated diseases into…
Abstract Number: 0662 • ACR Convergence 2022
Partial Correlations Network Models Show Th1, Th2 and Th17 Responses to Be Interlinked in Dermal Pathogenesis of Cutaneous Lupus Erythematous
Felix Chin¹, Thomas Vazquez², Josh Dan³, DeAnna Diaz⁴, Grant Sprow⁵, Jay Patel⁶, Nilesh Kodali⁷, Rui Feng⁸ and Victoria Werth⁹, ¹University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ²FIU Wertheim College of Medicine, Virginia Beach, VA, ³Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, ⁴Philadelphia College of Medicine, Philadelphia, PA, ⁵Albert Einstein College of Medicine, Philadelphia, PA, ⁶Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PN, ⁷New Jersey Medical School, Coppell, TX, ⁸University of Pennsylvania, Philadelphia, ⁹University of Pennsylvania and Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA
Background/Purpose: The immunopathogenesis of cutaneous lupus erythematous (CLE) is highly diverse and involves activity of many different cell types and pathways. This heterogeneity is believed…
Abstract Number: 0994 • ACR Convergence 2022
Effect of Immunosuppression on COVID Vaccination in Systemic Lupus Erythematosus
Michelle Petri¹, Daniel Joyce², Kristin Haag², Andrea Fava³, Daniel W. Goldman¹, Diana Zhong², Shaoming Xiao⁴, Aaron M. Milstone² and Laurence S Magder⁵, ¹Johns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, MD, ²Johns Hopkins University School of Medicine, Baltimore, MD, ³Johns Hopkins University, Baltimore, MD, ⁴Johns Hopkins School of Public Health, Baltimore, MD, ⁵University of Maryland, Department of Epidemiology and Public Health, Baltimore, MD
Background/Purpose: The risk of COVID-19 infection is increased in patients with systemic lupus erythematosus (SLE), and immunosuppressive medications including corticosteroids impact the risk. Furthermore, immunosuppressive…
Abstract Number: 1683 • ACR Convergence 2022
Malondialdehyde-Acetaldehyde (MAA) Modified Matrix Gla Protein (MGP) Increases Citrullination by Human Macrophages
Spencer Jones¹, nozima Aripova¹, Michael Duryee¹, Austin Ragland¹, Bryant England¹, Ted Mikuls² and Geoffrey Thiele¹, ¹University of Nebraska Medical Center, Omaha, NE, ²Division of Rheumatology, University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Malondialdehyde and acetaldehyde, by-products of lipid peroxidation, react with free amino groups on proteins to form a stable post-translational modification (PTM), termed MAA. MAA…
Abstract Number: 1747 • ACR Convergence 2022
Changes in the Number and Phenotype of Citrullinated-Antigen Specific T Cells Correlate with Treatment Outcome in Seropositive Rheumatoid Arthritis
Cliff Rims¹, Virginia Muir¹, Anne Hocking¹, Sylvia Posso¹, Heather Bukiri², Jeffrey Carlin³, Bernard Ng⁴, Peter Linsley¹, Eddie James⁵ and Jane Buckner⁵, ¹Benaroya Research Institute, Seattle, WA, ²University of California Los Angeles, Los Angeles, CA, ³Virginia Mason Medical Center, Seattle, WA, ⁴VA Puget Sound HCS, Seattle, WA, ⁵Benaroya Research Institute at Virginia Mason, Seattle, WA
Background/Purpose: In Rheumatoid arthritis (RA) citrullinated antigen reactive T cells are key drivers of disease, but knowledge about their relative number and phenotype remains limited.…
Abstract Number: 2267 • ACR Convergence 2022
Plasmacytoid Dendritic Cells Are Not Major Producers of Type 1 Interferons in Cutaneous Lupus
Thomas Vazquez¹, Nilesh Kodali¹, DeAnna Diaz², Jay Patel³, Emily Keyes², Grant Sprow², Meena Sharma¹, Mariko Ogawa-Momohara², Madison Grinnell², Josh Dan² and Victoria Werth², ¹Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, ²Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, ³Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PN
Background/Purpose: Type 1 interferons (IFN-1) are major drivers of disease activity in systemic (SLE) and cutaneous lupus erythematosus (CLE). Plasmacytoid dendritic cells (pDCs) are the…
Abstract Number: 0511 • ACR Convergence 2022
SARS-CoV-2 mRNA Vaccine Immunogenicity in Chronic Inflammatory Arthritis on DMARD Therapy
Nedal Darwish¹, Sameer Jhaveri², Uma Yoganathan¹, Halima Bakillah¹, Kelly Y. Chun³, Thomas Wasser⁴ and James Freeman¹, ¹Arnot Ogden Medical Center, Elmira, NY, ²Lake Erie College of Osteopathic Medicine, Elmira, NY, ³Labcorp, Calabasas, CA, ⁴Consult-Stat, Macungie, PA
Background/Purpose: Patients with chronic inflammatory arthritis (CIA) are at increased risk for the development and mortality from COVID-19. Vaccinations are integral to the management of…
Abstract Number: 0667 • ACR Convergence 2022
Correlation Matrices Visualize Differential Degree of Cell and Pathway Heterogeneity in Skin of Cutaneous Lupus Erythematosus Treatment Subgroups
Felix Chin¹, Thomas Vazquez², Josh Dan³, DeAnna Diaz⁴, Grant Sprow⁵, Jay Patel⁶, Nilesh Kodali⁷, Rui Feng⁸ and Victoria Werth⁹, ¹University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ²FIU Wertheim College of Medicine, Virginia Beach, VA, ³Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, ⁴Philadelphia College of Medicine, Philadelphia, PA, ⁵Albert Einstein College of Medicine, Philadelphia, PA, ⁶Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PN, ⁷New Jersey Medical School, Coppell, TX, ⁸University of Pennsylvania, Philadelphia, ⁹University of Pennsylvania and Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA
Background/Purpose: First-line treatment for cutaneous lupus erythematosus involves the use of antimalarials. Treatment response is highly variable with some patients responding well to hydroxychloroquine (HCQ),…
Abstract Number: 1059 • ACR Convergence 2022
Vision Transformer Assisting Rheumatologists in Screening for Capillaroscopy Changes in Systemic Sclerosis: An Artificial Intelligence Solution
Alexandru Garaiman¹, Farhad Nooralahzadeh², Carina Mihai¹, Nikitas Gkikopoulos¹, Nicolas Perez Gonzalez², Mike Becker¹, Oliver Distler¹, Michael Krauthammer³ and Britta Maurer⁴, ¹Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland, ²Department of Biomedical Informatics, University of Zurich, Zürich, Switzerland, ³Department of Quantitative Biomedicine, University of Zurich, Zürich, Switzerland, ⁴Department of Rheumatology and Immunology, University Hospital Bern, University of Bern, Bern, Switzerland
Background/Purpose: An accurate assessment of nailfold capillaroscopy (NFC) images has great importance in the diagnosis and prognosis of systemic sclerosis (SSc). To overcome some of…
Abstract Number: 1687 • ACR Convergence 2022
A Core Inflammation Program Conserved Across Human and Murine Neutrophils
Nicolaj hackert¹, Felix Radtke¹, Tarik Exner¹, Carsten Müller-Tidow¹, Hanns-Martin Lorenz¹, Peter Nigrovic², Guido Wabnitz¹ and Ricardo Grieshaber-Bouyer¹, ¹Heidelberg University Hospital, Heidelberg, Germany, ²Boston Children's Hospital, Boston, MA
Background/Purpose: Neutrophils mediate a range of homeostatic and inflammatory processes and display substantial phenotypic and functional heterogeneity. While animal models enable important mechanistic discoveries, differences…

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