Abstracts tagged "immunology"

Abstract Number: 0425 • ACR Convergence 2023
Long-term Safety of Rituximab in Rheumatoid Arthritis: A Systematic Review and Meta-analysis
Ioasaf Karafotias, Joshua Rothwell, Maryam Adas, Bechman Katie, Mark Russell, Sam Norton and James Galloway, King's College London, London, United Kingdom
Background/Purpose: Rituximab targets CD20-bearing B cells and is used to treat Rheumatoid Arthritis (RA). Common Variable Immune Deficiency (CVID) is a primary immune deficiency syndrome…
Abstract Number: 1366 • ACR Convergence 2023
A Unique Cluster of Inflammatory Monocytes and Functionally Intact Regulatory T Cells in Rare Childhood Sjögren’s Disease
Myung-Chul Kim¹, Umasankar De², Nicholas Borcherding³, Joon Paek⁴, Nicole Winn⁵, Indraneel Bhattacharyya⁶, Qing Yu⁷, Ryan Kolb⁸, Theodore Drashansky⁹, Akaluck Thatayatikom¹⁰, Weizhou Zhang⁸ and Seunghee Cha¹¹, ¹Jeju National University, Jeju-si, South Korea, ²University of Florida, Gainesville, FL, ³Washington University School of Medicine in St. Louis, Washington, DC, ⁴Department of Oral & Maxillofacial Diagnostic Sciences, Gainesville, FL, ⁵Division of Oral Medicine, Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL, ⁶Department of Oral & Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL, ⁷The Forsyth Institute, Cambridge, MA, ⁸Department of Pathology & Immunology, University of Florida, Gainesville, FL, ⁹Cellularity, Inc, Florham Park, NJ, ¹⁰AdventHealth for Children, Orlando, FL, Orlando, FL, ¹¹Department of Oral & Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry and Center for Orphaned Autoimmune Disorders (COAD), Gainesville, FL
Background/Purpose: This study was performed to characterize key immune cell subsets and their interactions in patients with childhood Sjögren's disease (cSjD) for the first time…
Abstract Number: 1813 • ACR Convergence 2023
Assessing Immunogenicity of SARS-CoV-2 Vaccine Neoantigen S1 in Autoimmune Rheumatic Disease Patients: A Study on Cellular and Humoral Responses
Inés Pérez Sancristóbal¹, Maria Paula Alvarez Hernandez¹, kauzar Mohamed Mohamed², Maria Rodriguez Laguna¹, Cristina Martinez³, Esther Toledano³, Dalifer Freites⁴, Benjamin Fernandez¹, María Rodero³, Cecilia Bravo³, Antonia Rodrígez de la Peña⁵, Silvia Sanchez - Ramon⁵, Gloria mato Chain⁶ and Gloria Candelas¹, ¹Hospital Clinico San Carlos, Madrid, Spain, ²Department of Immunology, Hospital Clínico San Carlos, Madrid, Spain, ³Hospital Clinico San Carlos, Rheumatology Deparment, Madrid, Spain, ⁴Hospital Clínico San Carlos, Madrid, Spain, ⁵Department of Clinical Immunology, IML and IdSSC, Hospital Clínico San Carlos, Madrid, Spain, ⁶Department of Preventive Medicine, Hospital Clínico San Carlos, Madrid, Spain
Background/Purpose: Data on cellular and humoral immunogenicity triggered by SARS-CoV-2 vaccines in patients with autoimmune rheumatic diseases (ARD) are limited. While current vaccine efforts have…
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: 0079 • ACR Convergence 2023
CD4 T Cell Repertoire Features in RA Patients with High-risk HLA-DRB1 Alleles
Amit Lakhanpal¹, Kazuyoshi Ishigaki², Anvita Singaraju¹, Alejandro Kochen³, Miriam Fein¹, Soumya Raychaudhuri⁴ and Laura Donlin¹, ¹Hospital for Special Surgery, New York, NY, ²RIKEN, Tokyo, Japan, ³Yale School of Medicine, New Haven, CT, ⁴Brigham and Women's Hospital, Boston, MA
Background/Purpose: A role for CD4 T cells in RA pathology is supported by the effectiveness of T cell therapies, genetic studies implicating T cell gene…
Abstract Number: 0569 • ACR Convergence 2023
Serum S100A8 and S100A9 Are Useful Biomarker Indicated IFN Associated Organ Involvements in Systemic Lupus Erythematosus
Risa Wakiya¹, Hiromi Shimada¹, Shusaku Nakashima¹, Taichi Miyagi², Yusuke Ushio³, Koichi Sugihara⁴, Mao Mizusaki¹, Rina Mino⁵, Kanako Chujo⁶, Ryoko Kagawa³, Hayamasa Yamaguchi³, Tomohiro Kameda¹ and Hiroaki Dobashi¹, ¹Division of Hematology, Rheumatology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan, ²Division of Hematology, Rheumatology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa University, Kidagun, Japan, ³Division of Hematology, Rheumatology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa University, Miki-cho, Kita-gun, Japan, ⁴Kagawa University, Miki-cho, Kita-gun, Japan, ⁵Kagawa University, Division of Hematology, Rheumatology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa, Japan, ⁶Kagawa University, Miki, Kita District, Kagawa, Japan
Background/Purpose: S100, a damage-related molecular pattern factor, was reported to be a biomarker associated with disease activity in SLE. Additional hydroxychloroquine, which could regulate IFN…
Abstract Number: 1397 • ACR Convergence 2023
Sustainability of Clinical Response at Week 52 to Upadacitinib Among Patients with Axial SpA: Data from the SELECT-AXIS 1 and SELECT-AXIS 2 Trials
Victoria Navarro-Compán¹, Lianne Gensler², Martin Rudwaleit³, Fabiana Ganz⁴, Shirley Chen⁴, Jayne Stigler⁴, Anna Schmagel⁴ and Xenofon Baraliakos⁵, ¹Department of Rheumatology, La Paz University Hospital, IdiPaz, Madrid, Spain, ²University of California San Francisco, Department of Medicine, Division of Rheumatology, San Francisco, CA, ³University of Bielefeld, Klinikum Bielefeld, Bielefeld, Germany, ⁴AbbVie, Inc., North Chicago, IL, ⁵Rheumazentrum Ruhrgebiet Herne, Ruhr University Bochum, Bochum, Germany
Background/Purpose: Upadacitinib 15 mg (UPA), an oral Janus kinase inhibitor, has shown efficacy and tolerability through 14 weeks in patients (pts) with active radiographic axial…
Abstract Number: 1928 • ACR Convergence 2023
Response to Sars-Cov2 Vaccination in Rheumatic and Neurological Patients Treated with Different Immunosuppressive Therapies
Cristina Calomarde Gomez¹, Raquel Ugena García¹, Julia Valera², Melisa Mena², Maria Esteve², Irma Casas², jose Antonio Dominguez-Benitez², lidia Carabias-Ane², isaac Nuño-Ruiz², Cristina ramo-Tello², Javier Santesmases², Lourdes Mateo Soria³ and Melania Martinez Morillo¹, ¹Rheumatology department. Hospital Universitari Germans Trias i Pujol, Badalona, Spain, ²Hospital Universitari Germans Trias i Pujol, Badalona, Spain, ³HOSPITAL GERMANS TRIAS I PUJOL, Badalona, Spain
Background/Purpose: Vaccination against SARS-CoV2 has been the primary global strategy to prevent severe forms of this respiratory infection. However, multiple studies have shown that patients…
Abstract Number: 2464 • ACR Convergence 2023
B Cells in Anti-tRNA Synthetase Syndrome Patients Show an Activated, Interferon Responsive Signature
Erin Wilfong¹, Leslie Crofford² and Rachel Bonami¹, ¹Vanderbilt University Medical Center, Nashville, TN, ²Vanderbilt University Medical Center, Melbourne, AR
Background/Purpose: Autoantibodies directed against various tRNA synthetases defines the anti-tRNA synthetase syndrome (ARS). While it is unclear if the autoantibodies are directly pathogenic, the efficacy…
Abstract Number: 0081 • ACR Convergence 2023
RA Disease Activity Influence the Frequency and Phenotype of Citrulline Reactive CD4 T Cells in DRB1*04:04 ACPA+ RA Patients
Cliff Rims¹, Anne Hocking¹, Sylvia Posso¹, Bernard Ng², Jeffrey Carlin³, Jane Buckner⁴ and Eddie James⁴, ¹Benaroya Research Institute, Seattle, WA, ²Veteran Affairs, Seattle, WA, ³Virginia Mason Medical Center, Seattle, WA, ⁴Benaroya Research Institute at Virginia Mason, Seattle, WA
Background/Purpose: The presence of ACPA in RA signifies an immune response toward citrullinated auto-antigens in disease pathogenesis and persistence. RA is a T cell mediated…
Abstract Number: 0594 • ACR Convergence 2023
Baseline Innate Immunity Transcriptional Signatures Act as Predictors of Response to Immunosuppressive and Biologic Treatments in Systemic Lupus Erythematosus While Disturbances Linked to p53-signaling Define “Resistant” Disease
Panagiotis garantziotis¹, Georgia-Savina Moysidou², stavros doumas³, Dionysis nikolopoulos², Sofia Flouda⁴, Noemin kapsala², Anastasia Filia², George Sentis², Antonis Fanouriakis², George Bertsias⁵ and Boumpas Dimitrios⁶, ¹Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany, ²School of Medicine, National and Kapodistrian University of Athens, Athens, Greece, ³Department of Medicine, MedStar Georgetown University Hospital, Washington, DC, ⁴Unit of Attikon University Hospital, Athens, Greece, ⁵Rheumatology, Clinical Immunology and Allergy Department, Medical School, University of Crete, Greece; Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas (FORTH), Heraklion, Greece, ⁶National and Kapodistrian University of Athens, Athens, Greece
Background/Purpose: Despite recent advances, the current state of SLE therapeutics remains largely empirical with existing immunosuppressive treatments failing to induce remission in over 40% of…
Abstract Number: 1458 • ACR Convergence 2023
Activated Naïve DNA-Reactive B Cells in Lupus Nephritis Patients Are Increased and Associated with Disease Activity
Kittikorn Wangriatisak¹, Francesca Faustini², Charlotte de Vries³, Ravi Kumar Sharma⁴, Caroline Grönwall⁵, Prapaporn Pisitkun⁶, Patchanee Chootong⁷, Vivianne Malmström⁵ and Iva Gunnarsson⁸, ¹Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Thailand ; Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Sweden; Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden, ²Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Sweden; Medicine Unit Dermatology, Gastroenterology, Rheumatology; unit of Rheumatology, Karolinska University Hospital Solna, Stockholm, Sweden, ³Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Sweden; Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden, ⁴Division of Rheumatology, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden, ⁵Karolinska Institutet, Stockholm, Sweden, ⁶Division of Allergy Immunology and Rheumatology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bankok, Thailand, ⁷Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand, ⁸Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Sweden; Medicine Unit Dermatology, Gastroenterology, Rheumatology; unit of Rheumatology, Karolinska University Hospital Solna, Sweden, Stockholm, Sweden
Background/Purpose: Lupus nephritis (LN) is one of the most severe manifestations of systemic lupus erythematosus (SLE), which is characterized by abnormal B-cell activation and their…
Abstract Number: 1931 • ACR Convergence 2023
Anti-Ku Antibodies: A Case Series
Raquel Ugena García¹, Cristina Calomarde Gomez¹, Joan Climent² and Lourdes Mateo Soria², ¹Rheumatology department. Hospital Universitari Germans Trias i Pujol, Badalona, Spain, ²Hospital Germans Trias i Pujol, Badalona, Spain
Background/Purpose: Anti-Ku antibodies (Abs) were initially described in patients with polymyositis and scleroderma. Subsequently, an association has been demonstrated with other systemic autoimmune diseases (SADs),…
Abstract Number: 2465 • ACR Convergence 2023
Clonally Expanded B Cells in Anti-Histidyl-tRNA Synthetase Syndrome Patients Exhibit an Autoreactive-Prone Memory Phenotype and Bind Jo-1 Autoantigen
Lindsay Bass¹, Dena Liu¹, Alberto Cisneros², Jennifer Young-Glazer², Leslie Crofford³, Erin Wilfong² and Rachel Bonami², ¹Vanderbilt University, Nashville, TN, ²Vanderbilt University Medical Center, Nashville, TN, ³Vanderbilt University Medical Center, Melbourne, AR
Background/Purpose: Anti-histidyl-tRNA synthetase syndrome (Jo-1 ARS) is defined by the presence of autoantibodies against histidyl tRNA synthetase (Jo-1). Clinically, Jo-1 ARS can involve multiple tissues…
Abstract Number: 0082 • ACR Convergence 2023
A VAV1-Directed Molecular Glue Degrader, MRT-6160, Reduces Joint Inflammation in a Collagen-Induced Arthritis Autoimmune Disease Model
Adam Cartwright¹, Foram Desai², Sophia Nguyen², Alexandra Trouilloud², Elisa Liardo¹, Daric Wible², Ilaria Lamberto², Bradley Demarco², Chris King², Debora Bonenfant¹, Sharon Townson², Owen Wallace², Filip Janku², Laura McAllister¹, Alison Paterson² and Marisa Peluso², ¹Monte Rosa Therapeutics, Basel, Switzerland, ²Monte Rosa Therapeutics, Boston, MA
Background/Purpose: VAV1 is a member of the VAV family of guanine nucleotide exchange factors (GEFs) and plays a critical role in mediating T- and B-cell…

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