Abstracts tagged "immunology"

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…
Abstract Number: 1749 • ACR Convergence 2022
Mass Spectrometry-Based HLA Peptidomics Analysis Reveals Both Expected and Novel Citrullinated Antigen Targets in Rheumatoid Arthritis
Eddie James¹, Cliff Rims², Sylvia Posso², Jeffrey Carlin³, William Kwok², Shao-En Ong⁴ and Jane Buckner¹, ¹Benaroya Research Institute at Virginia Mason, Seattle, WA, ²Benaroya Research Institute, Seattle, WA, ³Virginia Mason Medical Center, Seattle, WA, ⁴University of Washington, Seattle, WA
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease in which citrullinated self-antigens are recognized by anti-citrullinated protein antibodies (ACPA) and T cells. ACPA are a…
Abstract Number: 0549 • ACR Convergence 2022
Efficacy and Safety of the SARS-CoV-2 Vaccine in Patients with Rheumatoid Arthritis
Esther Vicente-Rabaneda¹, María Torres², Miren Uriarte³, Patricia Quiroga-Colina³, Ainhoa Gutiérrez⁴, Ana Triguero⁵, Francisco Gutiérrez³, Noelia García³, Ana Romero-Robles³, Laura Cardeñoso⁴ and Santos Castañeda¹, ¹Division of Rheumatology, Hospital Universitario de La Princesa, IIS-Princesa, Madrid, Spain, ²Medical student, Hospital Universitario de La Princesa, Universidad Autónoma de Madrid, Madrid, Spain, ³Division of Rheumatology, Hospital Universitario de La Princesa, Madrid, Spain, ⁴Division of Microbiology, Hospital Universitario de La Princesa, Madrid, Spain, ⁵Hospital Universitario La Princesa, Madrid, Spain
Background/Purpose: To describe the efficacy and safety of the SARS-CoV-2 vaccine in a series of patients with rheumatoid arthritis (RA).Methods: Retrospective observational study of RA…
Abstract Number: 0740 • ACR Convergence 2022
Real-World Demographics, Clinical Characteristics, and Treatment Patterns of Patients Treated with Emapalumab for Secondary Hemophagocytic Lymphohistiocytosis in the United States: The REAL-HLH Study
Carl Allen¹, Shanmuganathan Chandrakasan², Michael Jordan³, Jennifer Leiding⁴, Abiola Oladapo⁵, Priti Pednekar⁶, Kelly Walkovich⁷ and John Yee⁸, ¹Baylor College of Medicine, Houston, TX, ²Emory University School of Medicine, Atlanta, GA, ³University of Cincinnati, Cincinnati, OH, ⁴Johns Hopkins University, Baltimore, MD, ⁵Swedish Orphan Biovitrum AB, Boston, MA, ⁶PRECISIONheor, Los Angeles, CA, ⁷University of Michigan Health, Ann Arbor, MI, ⁸Sobi - North America, Waltham, MA
Background/Purpose: Hemophagocytic lymphohistiocytosis (HLH) is a rare, life-threatening, hyperinflammatory syndrome caused by overproduction of proinflammatory cytokines, e.g., interferon gamma (IFNγ). Secondary HLH (sHLH), a subtype…
Abstract Number: 1095 • ACR Convergence 2022
A20(Tnfaip3) in Keratinocytes Restricts an Early Antiviral Gene Program Associated with Psoriatic Skin and Joint Disease
Bahram Razani¹, Jared Liu¹, Ryan Tobias¹, Sugandh Kumar¹, Zhi-Ming Huang¹, Wilson Liao², Barbara Malynn³ and Averil Ma³, ¹Dept. of Dermatology, UCSF, San Francisco, ²Dept. of Dermatology, San Francisco, ³Division of Gastroenterology, UCSF, San Francisco
Background/Purpose: A20 (Tnfaip3) levels are reduced in psoriatic plaques and polymorphisms in the TNFAIP3 gene locus are associated with increased risk for both psoriasis and psoriatic…
Abstract Number: 1698 • ACR Convergence 2022
LINE1 Reverse Transcriptase Inhibitors Abrogate Type 1 Interferon Responses
Daniel Rios¹, Nafeeza Hafeez¹, Brian Desrosiers¹, Shradha Rao¹, Jess Floro¹, Joelle Baddour¹, Nisha Perez², Greg Bisacchi², Oliver Saunders², Donna Romero¹, Menachem Fromer², Enrique Garcia-Rivera², Wilson McKerrow², Julie Behr², Bryan Thornlow², Dennis Zaller², David Proia² and Wenyan Miao², ¹Rome Therapeutics, Cambridge, MA, ²Rome Tx, Cambridge, MA
Background/Purpose: Transposable elements (TEs) are mobile DNA elements that can replicate and move from one position to another within the host genome. Through co-evolution, TEs…
Abstract Number: 1762 • ACR Convergence 2022
Stability of Cell Bound Complement Activation Products (CB-CAPs), Multianalyte Assay Panel (MAP) with Algorithm, and Other Autoimmune Biomarkers Among Clinical Patients Throughout the SARS-CoV-2 Pandemic and Vaccination Campaigns
Mark Rudolph, Rory Bloch, Anja Kammesheidt and Roberta Alexander, Exagen, Inc., Vista, CA
Background/Purpose: COVID-19 can cause autoantibody signatures in severely ill patients, and widespread emerging post-acute sequelae of SARS-CoV-2 (PASC) share many symptoms consistent with rheumatologic involvement…

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