Abstracts tagged "immunology"

Abstract Number: 2444 • ACR Convergence 2023
Development of Engineered Smith-Specific Regulatory T Cells to Treat Lupus Nephritis
Eric Morand¹, Rachel Cheong², Peter Eggenhuizen², Janet Chang², Ashraf Broury², Boaz Ng², Khai Loh², Elean Tay², Chanjuan Shen³, Julie Monk², Yong Zhong⁴, Steven Lim², Jia Xi Chung², Rangi Kandane-Rathnayake⁵, Rachel Koelmeyer², Alberta Hoi⁶, Sarah Snelgrove², Yi Tian Ting² and Joshua Ooi², ¹Monash University, Centre for Inflammatory Diseases, Melbourne, Australia, ²Monash University, Clayton, Australia, ³Central South University, Changsha, China, ⁴Xiangya Hospital, Central South University, Changsha, China, ⁵Monash University, Department of Medicine, Sub-faculty of Clinical and Molecular Medicine, Clayton, Australia, ⁶Monash University, Department of Medicine, Sub-faculty of Clinical and Molecular Medicine, Melbourne, Australia
Background/Purpose: Regulatory T cells (Tregs) play an important role in maintaining immune system homeostasis. Antigen-specific Tregs potently and specifically suppress autoreactivity, suggesting their potential to…
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: 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: 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: 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…
Abstract Number: 0012 • ACR Convergence 2022
Role of Type L IFN Signaling on B Cell Pathogenicity in Early Sjögren’s Disease in Mouse Model
Merri-Grace Allred and Scott Lieberman, University of Iowa, Iowa City, IA
Background/Purpose: Sjogren's disease is a chronic autoimmune disease autoimmune disease characterized by foci of inflammation of the lacrimal and salivary glands. As disease progresses, B…
Abstract Number: 0558 • ACR Convergence 2022
Molecular Interplay Between Mammalian Target of Rapamycin (mTOR) and the YAP Pathway Mediates Rheumatoid Arthritis Synovial Fibroblast Activation
Brianne Barker¹, Megan Hanlon², Siobhan Wade¹, Douglas Veale³, Ursula Fearon¹ and Mary Canavan⁴, ¹Trinity College Dublin, Dublin, Ireland, ²Molecular Rheumatology, Dublin, Ireland, ³St. Vincent's University Hospital, Blackrock, Dublin, Ireland, ⁴Trinity College, Dublin, Ireland
Background/Purpose: mTOR is a metabolic master regulator of both innate and adaptive immunity, however its exact role in synovial fibroblasts is unknown. RA synovial fibroblasts…
Abstract Number: 0752 • ACR Convergence 2022
A Phase I Clinical Study to Evaluate the Safety, Tolerance, Pharmacokinetics and Immunogenicity of Ebdarokimab in Patients with Moderate to Severe Plaque Psoriasis
Rui Chen¹, Yu Xia², Baiyong Li², Xiang Ni², Guoqin Wang², Cui Zhang², Benchao Chen², Li Wang² and Hongzhong Jin³, ¹Clinical Pharmacology Research Center, Peking Union Medical College Hospital, State Key Laboratory of Complex Severe and Rare Diseases, NMPA Key Laboratory for Clinical Research and Evaluation of Drug, Beijing Key Laboratory of Clinical PK & PD Investigation for Innovative Drugs, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China, ²Akeso Biopharma, Inc., Zhongshan, China, ³Department of Dermatology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Disease, Beijing, China
Background/Purpose: Interleukin-12 (IL-12) and interleukin-23 (IL-23) are two essential cytokins involved in the immune-mediated inflammatory disorders of psoriasis. Anti-IL-12/IL-23 therapy has been developed for the…
Abstract Number: 1164 • ACR Convergence 2022
Expanded CD8+ T Cell Clones from HLA-B*27-positive Patients with Spondyloarthritis Show Signs of Antigen-experience
Judith Rademacher¹, Katharina Deschler², Sonja Lacher², Alina Huth², Markus Utzt², Stefan Krebs², Helmut Blum², Eduardo Beltrán², Klaus Dornmair² and Denis Poddubnyy³, ¹Charité Universitätsmedizin Berlin, Berlin, Germany, ²Laboratory for Functional Genome Analysis (LAFUGA), Gene Center of the LMU Munich, Munich, Germany, ³Department of Gastroenterology, Infectious Diseases and Rheumatology, Charité – Universitätsmedizin Berlin, Berlin, Germany
Background/Purpose: Spondyloarthritis (SpA) is strongly associated with HLA-B27. The arthritogenic antigen hypothesis assumes the existence of specific peptides presented by risk-conferring HLA-B27 alleles to antigen-specific…
Abstract Number: 1701 • ACR Convergence 2022
High TNFAIP3-Transfected Cell Activity: An In Vitro Model for Phagocyte Study of Monogenic Behçet’s Disease Pathophysiology
Patricia Pontes Aires¹, André Cunha¹, DANIELA GERENT PETRY PIOTTO¹, Maria Teresa Terreri² and Sandro Perazzio¹, ¹Universidade Federal de São Paulo, São Paulo, Brazil, ²Universidad Federal São Paulo, São Paulo, Brazil
Background/Purpose: A20 haploinsufficiency (A20HA), an important monogenic etiology of Behçet's disease (BD), is caused by loss-of-function mutations in TNFAIP3. Although monocytes play an important role…

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