Abstracts tagged "immunology"

Abstract Number: 0692 • ACR Convergence 2023
Behçet’s Disease-Associated TCR in the Eye Points to HLA Class I-Restricted Autoimmunity
Johannes Nowatzky¹, Ziyan Lin², Yesim Ozguler³, Alireza Khodadadi-Jamayran², Didar Ucar⁴, Aristotelis Tsirigos⁵, Gulen Hatemi⁶ and Olivier Manches⁷, ¹NYU Grossman School of Medicine, Department of Medicine, Department of Pathology, Division of Rheumatology, NYU Behçet's Disease Program, NYU Ocular Rheumatology Program, New York, NY, ²NYU Grossman School of Medicine, Applied Bioinformatics Laboratories, New York, NY, ³NYU Grossman School of Medicine, Department of Medicine, Division of Rheumatology and Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Department of Internal Medicine, Division of Rheumatology, New York, NY, ⁴Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Department of Ophthalmology, Istanbul, Turkey, ⁵NYU Grossman School of Medicine, Department of Pathology, Department of Medicine, Institute for Computational Medicine, New York, NY, ⁶Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Department of Internal Medicine, Division of Rheumatology, Istanbul, Turkey, ⁷EFS, Recherche et Développement, Department of Pulmonology and Physiology, CHU Grenoble-Alpes, Université Grenoble-Alpes, INSERM U1209, CNRS UMR, Institute for Advanced Biosciences, Grenoble, France
Background/Purpose: Behçet's disease (BD) is an HLA class I-associated disorder, given its strong link to HLA-B*51. However, evidence of HLA class I restriction is lacking,…
Abstract Number: 1589 • ACR Convergence 2023
Epigenetic Regulation of DNMT3A by TFEB and DOT1L Through AMPK Signalling Orchestrates the Lysosomal Response of Macrophages During Gout and Clonal Hematopoiesis
Isidoro Cobo¹, Jessica Murillo-Saich², Mohnish Alishala¹, Stephen Calderon¹, Roxana Coras³, Nathanael Spann¹, Anyan Cheng⁴, Thomas Prohaska¹, Babak Razani⁵, Robert Terkeltaub¹, Benjamin Ebert⁶, Ru Liu Bryan⁷, Monica Guma⁸ and Christopher glass¹, ¹University of California San Diego, San Diego, CA, ²Department of Medicine, University of California San Diego, La Jolla, CA, ³Cedars-Sinai Medical Center, Los Angeles, CA, ⁴University of California San Diego, San Francisco, CA, ⁵Universit of Pittsburgh, Pittsburgh, PA, ⁶Dana-Farber Cancer Institute, Boston, MA, ⁷UCSD and VASDHS, San Diego, CA, ⁸San Diego VA Healthcare Service, La Jolla, CA
Background/Purpose: Gout is the most common form of inflammatory arthritis worldwide, which is characterised by the deposition of monosodium urate crystals (MSUc) in the joints…
Abstract Number: 2055 • ACR Convergence 2023
A Randomized Controlled Trial of Two Hepatitis a Vaccine Doses Among Adolescents with Juvenile Idiopathic Arthritis and Crohn’s Disease on Immunosuppressive Therapy: A Pilot Study
Racheal Githumbi¹, Susan Kuhn¹, Carla Osiowy², Jennifer DeBruyn¹, Marvin Fritzler¹, Nicole Johnson¹, Otto G Vanderkooi¹ and Heinrike Schmeling¹, ¹University of Calgary, Calgary, AB, Canada, ²National Microbiology Laboratory, Public Health Agency of Canada, Winnepig, MB, Canada
Background/Purpose: Juvenile idiopathic arthritis (JIA) and Crohn's disease (CD) are now controlled using immunosuppressive medications. However, disease control comes at the risk of increased infection.…
Abstract Number: 2508 • ACR Convergence 2023
Chronic IL-6 Trans-Signaling Enhances Stem Cell-Like Characteristics of Rheumatoid Arthritis Synovial Fibroblasts
Anil Singh and Salahuddin Ahmed, Washington State university, Spokane, WA
Background/Purpose: Chronic exposure to IL-6 trans-signaling has been shown to significantly impact the characteristics of rheumatoid arthritis synovial fibroblasts (RASFs). Previous studies have demonstrated that…
Abstract Number: 111 • 2023 Pediatric Rheumatology Symposium
Monitoring for Hypogammaglobulinemia After B-Cell Therapy in an Academic Pediatric Center
Omar Mostafa, Sharon Bout-Tabaku, Buthaina Al-Adba, Ahmad Kaddourah, Abubakr Imam, Ibrahim Shatat and Mohammed Yousuf Karim, Sidra Medicine, Ar-Rayyan, Qatar
Background/Purpose: Hypogammaglobulinemia is an under-recognized complication of B-cell targeted therapies (BCTT) in both autoimmune diseases (AID) and malignancy. Hypogammaglobulinemia may be transient or persistent, and…
Abstract Number: L03 • ACR Convergence 2022
A Phase 2 Trial of Peresolimab for Adults with Rheumatoid Arthritis
Jay Tuttle¹, Edit Drescher², Jesus Abraham Simón-Campos³, Paul Emery⁴, Maria Greenwald⁵, Alan Kivitz⁶, Hyungmin Rha¹, Pia Yachi¹, Christina Kiley¹ and Ajay Nirula⁷, ¹Eli Lilly and Company, Indianapolis, IN, ²Csolnoky Ferenc Hospital, Veszprém, Hungary, ³Köhler & Milstein Research/Hospital Agustín O'Horán, Merida, Yucatan, Mexico, ⁴University of Leeds, Leeds, United Kingdom, ⁵Desert Medical Advances, Palm Desert, CA, ⁶Altoona Center for Clinical Research, Duncansville, PA, ⁷Eli Lilly, San Diego, CA
Background/Purpose: Peresolimab is a humanized immunoglobulin G1 monoclonal antibody that stimulates human programmed cell death protein 1 (PD-1). We hypothesized that peresolimab binding to PD-1,…
Abstract Number: L04 • ACR Convergence 2022
Psoriatic Arthritis Disease Subtypes Mediated by CD8 T Cells Are Phenocopied in a Novel Humanized Murine Model of Psoriasis and Arthritis
Maria de la Luz Garcia-Hernandez¹, Javier Rangel-Moreno¹, Ananta Paine², Soumyaroop Bhattacharya³, Jeffrey Fox⁴, Ernest Meyer⁵, Brian Isett⁵, Riyue Bao⁶, Tullia Bruno⁶ and Christopher Ritchlin⁷, ¹University of Rochester, Rochester, NY, ²ORNA Tx, Southborough, MA, ³Department of Pediatrics, University of Rochester Medical Center, Rochester, NY, ⁴CMSR, University of Rochester Medical Center, Rochester, NY, ⁵UPMC Hillman Cancer Center, Pittsburgh, PA, ⁶University of Pittsburgh, Pittsburgh, PA, ⁷University of Rochester Medical Center, Rochester, NY
Background/Purpose: A pivotal clinical characteristic of psoriatic arthritis (PsA) is disease manifestations in several domains (skin, entheses, joints, spine) and multiple domain involvement is prevalent,…
Abstract Number: L10 • ACR Convergence 2022
Efgartigimod Prevents Necrosis and Allows for Muscle Fiber Regeneration in a Humanized Mouse Model of Immune-mediated Necrotizing Myopathy (IMNM)
Sarah Julien¹, Emma Briand¹, Bas van der Woning², Leentje de ceuninck³, Rachid zoubari¹, olivier benveniste⁴, laurent drouot¹ and olivier boyer⁵, ¹INSERM U1234, PAn’THER FOCIS Center of Excellence, Rouen, France, ²argenx, Boston, MA, ³argenx, Ghent, Belgium, ⁴AP-HP, Pitié-Salpêtrière University Hospital, Department of Internal Medicine and Clinical Immunology, Paris, France, ⁵INSERM U1234, PAn’THER FOCIS Center of Excellence; Rouen University Hospital, Department of Immunology and Biotherapy, Rouen, France
Background/Purpose: Immune-mediated necrotizing myopathy (IMNM) is a severe form of myositis characterized by muscle weakness and elevated creatine kinase levels in serum. The most frequent…
Abstract Number: 0040 • ACR Convergence 2022
Plasma Proteomic Signatures in Juvenile Dermatomyositis Highlight Novel Proteins and a Protein Module That Associate with Skin and Global Disease Activity
Marianne Kerski¹, Celine Berthier¹, Alex Tsoi¹, Sarah Vandenbergen¹, Madison McClune¹, Corey Powell¹, J. Michelle Kahlenberg¹ and Jessica Turnier², ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Saline, MI
Background/Purpose: Juvenile dermatomyositis (JDM) patients display heterogenous disease phenotypes and treatment response patterns. Our study used a multiplexed proteomics assay for measurement of 3072 proteins…
Abstract Number: 0608 • ACR Convergence 2022
Wnt Pathway Regulators R-spondin 3 and Dickkopf-related Protein 3 Demarcate a Transcriptional Gradient That Drives Synovial Fibroblast Inflammatory Pathology in Rheumatoid Arthritis
Alisa Mueller¹, Angela Zou², SABA NAYAR³, Emily Taylor³, Triin Major³, David H Gardner³, Gerald FM Watts¹, Adam Croft³, Roche Fibroblast Network Consortium⁴, Andrew Filer³, Christopher Buckley⁵, Kevin Wei⁶, ilya Korsunsky¹, Soumya Raychaudhuri¹ and Michael Brenner⁷, ¹Brigham and Women's Hospital, Boston, MA, ²Harvard Medical School, Boston, MA, ³University of Birmingham, Birmingham, United Kingdom, ⁴Roche, Basel, Switzerland, ⁵University of Oxford, Oxford, United Kingdom, ⁶Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁷Brigham and Women's Hospital, Harvard Medical School, Boston, MA
Background/Purpose: Synovial fibroblasts are key players in rheumatoid arthritis (RA) where they secrete inflammatory cytokines and directly instigate cartilage and bone destruction. However, most treatments…
Abstract Number: 0760 • ACR Convergence 2022
Prevalence of Autoimmune Conditions in Metastatic Melanoma Patients Starting Checkpoint Inhibitors
Alexandra Ladouceur¹, Marina Amaral De Avila Machado², Marie Hudson¹, Cristiano Moura³ and Sasha Bernatsky³, ¹McGill University, Montréal, QC, Canada, ²Research Institute of McGill University Health Center, Montréal, QC, Canada, ³Research Institute of the McGill University Health Centre, Montréal, QC, Canada
Background/Purpose: Since patients with pre-existing autoimmune conditions are commonly excluded from clinical trials with immune checkpoint inhibitors (ICI), we aimed to describe the characteristics of…
Abstract Number: 1174 • ACR Convergence 2022
Cellular Immunotherapy for Systemic Sclerosis
Chanhyuk Park¹, Rajan Bhandari², Jason Gunn³, Timothy Sullivan², Gretel Torres², Joana Murad³, Michael Whitfield⁴ and Patricia Pioli², ¹Geisel School of Medicine at Dartmouth, West Lebanon, NH, ²Geisel School of Medicine at Dartmouth, Lebanon, NH, ³Celdara Medical, Lebanon, ⁴Geisel School of Medicine, Lebanon, NH
Background/Purpose: Pro-fibrotic macrophages (MØs) are implicated in the pathogenesis of systemic sclerosis (SSc). In prior work, we and others have shown that MØs derived from…
Abstract Number: 1717 • ACR Convergence 2022
Deficiency of IL-23 Receptor in Podocytes of MRL/lpr lupus-prone Mice Abrogates the Development of Lupus Nephritis Despite IgG Deposition in the Glomeruli
Afroditi Boulougoura¹, Hao Li¹, Rhea Bhargava¹, Wenliang Pan¹, Abhigyan Satyam¹, Isaac Stillman² and George Tsokos¹, ¹Division of Rheumatology and Clinical Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ²Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
Background/Purpose: Interleukin 23 (IL-23) is involved in the pathogenesis of systemic lupus erythematosus (SLE). IL-23 is elevated in the sera of patients with active SLE…
Abstract Number: 1981 • ACR Convergence 2022
Rho-GTPase Expression Recruits CD14+ Cells to Joints in Rheumatoid Arthritis and Predicts Good Response to JAK-inhibitor Treatment
Eric Malmhäll-Bah¹, Karin Andersson², Nina Oparina², Sofia Töyrä Silfverswärd³, Malin Erlandsson² and Maria Bokarewa³, ¹Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, ²Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Goteborg, Sweden, ³Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
Background/Purpose: While examining arthritis development in GGTaseI-deficient mice, we found that hyperactive Rho-GTPases regulate the thymic egress of CD4+ T cells to the peripheral lymphoid…
Abstract Number: 0047 • ACR Convergence 2022
Cenerimod, a Novel Selective S1P1 Receptor Modulator, Prevents or Attenuates Joint Inflammation in Several Preclinical Models of Rheumatoid Arthritis
Thomas Hoyler, Jeremy Scherer, Maxime Bulle, Conrad Wyss, Sylvie Froidevaux and Marianne Martinic, Idorsia Pharmaceuticals Ltd., Allschwil, Switzerland
Background/Purpose: Targeting the sphingosine-1-phosphate (S1P) pathway has become an attractive target for therapeutic intervention in autoimmune diseases due to its selective impact on the migration…

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