Abstracts tagged "B-Cell Targets"

Abstract Number: 2437 • ACR Convergence 2024
Aryl Hydrocarbon Receptor as an Intrinsic Novel Checkpoint That Inhibits TLR7-induced B-cell Activation in SLE
Changming Lu¹, Jose Rubio², Hui-Chen Hsu¹ and John D. Mountz³, ¹University of Alabama at Birmingham, Birmingham, AL, ²University of Alabama at Birmingham, Hoover, AL, ³University Alabama Birmingham, Birmingham, AL
Background/Purpose: Systemic lupus erythematosus (SLE) is characterized by an increase in T-bet+ IgD−CD27− double negative 2 (DN2) B cells, attributed to heightened TLR7 signaling. Identifying…
Abstract Number: 0009 • ACR Convergence 2024
Comprehensive Autoantibody Profiling Highlights Clinical Relevance of Autoantibodies to G Protein-coupled Receptors in Systemic Sclerosis: Insights from a B-cell Depletion Clinical Trial
Kazuki Matsuda, Shinichi Sato and Ayumi Yoshizaki, The University of Tokyo, Tokyo, Japan
Background/Purpose: Systemic sclerosis (SSc) affects the skin and internal organs with a poor prognosis. While the exact cause remains unclear, increasing evidence indicates that B…
Abstract Number: 0776 • ACR Convergence 2024
Follicular Dendritic Cell PD-L1 Expression Promotes Autoreactive Germinal Center Formation
Elliot Akama-Garren¹, Yingying Zhang², Balthasar Heesters³, Padraic Fallon⁴ and Michael Carroll², ¹Harvard Medical School, Boston, MA, ²Boston Children's Hospital, Boston, MA, ³Utrecht University, Utrecht, Netherlands, ⁴Trinity College Dublin, Dublin, Ireland
Background/Purpose: Germinal center (GC) responses generate humoral immunity through coordinated interactions between B cells and T follicular helper (TFH) and T follicular regulatory (TFR) cells.…
Abstract Number: 1651 • ACR Convergence 2024
Unlocking the Secrets of Breg Dysfunction in Lupus: Glycosylation Patterns as Therapeutic Targets
Pauline Kerleroux-Trébaol¹, Marie Morel¹, Sandrine Jousse-Joulin², Divi Cornec³, Pierre Pochard¹ and Anne Bordron¹, ¹Université de Bretagne Occidentale, brest, France, ²cavale blanche hospital, brest, France, ³Service de Rhumatologie, CHU de Brest, Brest, France
Background/Purpose: The immune system is a complex network of cells preventing the invasion of the organism from external particles. The break in the homeostasis will…
Abstract Number: 2548 • ACR Convergence 2024
NADPH Oxidase in B Cells and Macrophages Protects Against Murine Lupus by Regulation of TLR7
Rachael Gordon¹, Haylee Cosgrove², Anthony Marinov³, Sebastien Gingras¹, Jeremy Tilstra², Allison Campbell⁴, Sheldon Bastacky¹, Andras Perl⁵, Kevin Nickerson¹ and Mark Shlomchik², ¹University of Pittsburgh, Pittsburgh, ²University of Pittsburgh, Pittsburgh, PA, ³University of Pittsburgh, Homestead, PA, ⁴Yale, New Haven, ⁵SUNY, Syracuse, NY
Background/Purpose: Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease characterized by loss of tolerance to nuclear antigens, immune activation, and organ damage. Loss of…
Abstract Number: 0010 • ACR Convergence 2024
Precision Editing of Cyclophilin a to Engineer Cyclosporine- and Voclosporin- Resistant Human CAR-T Cells
Holly Wobma¹, Francesca Alvarez-Calderon², Jiayi Dong², Alexandre Albanese², Kayleigh Omdahl², Rene Bermea³, Gillian Selig⁴, Marlana Winschel², Elisa Rojas Palato², Katherine Michaelis¹, Xianliang Rui², Bruce Blazar⁵, Susan Prockop², Victor Tkachev³, Ulrike Gerdemann² and Leslie Kean², ¹Division of Immunology, Boston Children's Hospital, Boston, MA, ²Division of Hematology-Oncology, Boston Children's Hospital, Boston, MA, ³Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA, ⁴Harvard College, Boston, MA, ⁵Division of Pediatric Blood and Marrow Transplantation & Cellular Therapy, University of Minnesota, Minneapolis, MN
Background/Purpose: With exponential demand for chimeric antigen receptor (CAR) therapies for autoimmune disease, allogeneic options will be essential. Advantages include use of healthy donor cells,…
Abstract Number: 0777 • ACR Convergence 2024
Rheumatoid Factor B Cell Clones Proliferate Predominantly as Atypical Memory B Cells in Reactive Cervical Lymph Node Follicles Compared to Extrafollicular Sites in Affected Salivary Glands of SjS Patients
Theodoros Ioannis Papadimitriou¹, Jing Jing Wang², Xuehui He³, Sidney van der Zade⁴, Massis Krekorian⁵, Prashant Singh⁶, Erik Dik⁵, Ger Pruijn⁵, Tom Gordon², Hans Koenen⁷, Martijn Huijnen⁸ and Rogier Thurlings¹, ¹Radboudumc, Department of Rheumatology, Nijmegen, Gelderland, Netherlands, ²Flinders University, Adeleide, Australia, ³Radboudumc, Nijmegen, Netherlands, ⁴Radboudumc, Amsterdam, Netherlands, ⁵Radboudumc, Nijmegen, Gelderland, Netherlands, ⁶Radboudumc, Department of Medical BioSciences, Nijmegen, Netherlands, ⁷Radboudumc, Department of Medical Immunology, Nijmegen, Gelderland, Netherlands, ⁸Radboudumc, Department of Medical BioSciences, Nijmegen, Gelderland, Netherlands
Background/Purpose: Sjögren’s syndrome (SjS) is a chronic inflammatory disorder, characterized by formation of autoantibodies. Over time rheumatoid factor (RF) clones can give rise to cryoglobulinemic…
Abstract Number: 1733 • ACR Convergence 2024
Safety and Efficacy of CABA-201, a Fully Human, Autologous 4-1BB Anti-CD19 CAR T Cell Therapy in Patients with Immune-Mediated Necrotizing Myopathy and Systemic Lupus Erythematosus from the RESET-MyositisTM and RESET-SLETM Clinical Trials
Saira Sheikh¹, Tahseen Mozaffar², Vimal Derebail¹, Natalie Grover¹, Jonathan Hogan³, Courtney Little³, Yvonne White³, Claire Miller³, Rebecca Estremera³, Jenell Volkov³, Daniel Nunez³, Jason Stadanlick³, Mallorie Werner³, Zachary Vorndran³, Alexandra Ellis³, Jazmean Williams³, Justin Cicarelli³, Quynh Lam³, thomas Furmanak³, Chris Schmitt³, Fatemeh Nezhad³, Dan Thompson³, Samik Basu³ and David Chang³, ¹University of North Carolina at Chapel Hill, Chapel Hill, NC, ²University of California, Irvine, Irvine, CA, ³Cabaletta Bio, Philadelphia, PA
Background/Purpose: CD19 targeting chimeric antigen receptor (CAR) T cells have demonstrated durable drug-free responses and remission in patients with idiopathic inflammatory myopathies (IIM) and systemic…
Abstract Number: 2598 • ACR Convergence 2024
p300 KAT Inhibition Selectively Targets Multiple Cell Types Involved in Chronic Inflammation and Downregulates Key Inflammatory Cytokines
Zhihua Ma, Luis Carvajal, Andrew Chen, Rosa Villagomez, Yare calderon, Tamara Hopkins, Hua Gao, Benjamin Trotter, Charles Lin and Peter Rahl, Kronos Bio, Cambridge, MA
Background/Purpose: Across inflammatory and autoimmune diseases, pathologic signaling converges in the nucleus to elevate transcription of numerous inflammatory effectors such as cytokines, chemokines and antibodies.…
Abstract Number: 0550 • ACR Convergence 2023
Harnessing Machine Learning to Predict Neuropsychiatric Events in Systemic Lupus Erythematosus
Nursen Cetrez¹, Julius Lindblom¹, Raffaele Da Mutten², Dionysis Nikolopoulos² and Ioannis Parodis¹, ¹Karolinska Institutet, Stockholm, Sweden, ²Karolinska Institutet and Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden
Background/Purpose: Neuropsychiatric systemic lupus erythematosus (NPSLE) is linked to increased morbidity, mortality, and adverse health-related quality of life. Early disease, a history of NPSLE, aPL…
Abstract Number: 0983 • ACR Convergence 2023
Association Between Disease-modifying Anti-rheumatic Drugs and Short-term Outcomes of Dengue: A Population-based, Cohort Study
I-Feng Lin¹, Hsin-Hua Chen², Theodore Tsai³ and Nicole Huang⁴, ¹National Yang Ming Chiao Tung University, Taipei, Taiwan, ²Taichung Veterans General Hospital, Taichung, Taiwan, ³Takeda Vaccines, Cambridge, MA, ⁴Master of Public Health Program, National Yang Ming Chiao Tung University, Taipei, Taiwan
Background/Purpose: Dengue is the leading vectorborne disease globally with half of the global population at risk, including Puerto Rico in the United States. Previously, we…
Abstract Number: 2320 • ACR Convergence 2023
Predicting Remission and Low Disease Activity Attainment in Patients with Systemic Lupus Erythematosus
Raffaele Da Mutten¹, Nursen Cetrez², Julius Lindblom², Shereen Oon³, Dionysis Nikolopoulos¹, Mandana Nikpour⁴ and Ioannis Parodis², ¹Karolinska Institutet and Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden, ²Karolinska Institutet, Stockholm, Sweden, ³St Vincent's Hospital, Fitzroy, Australia, ⁴The University of Melbourne at St. Vincent’s Hospital Melbourne, Departments of Medicine and Rheumatology, Melbourne, Australia
Background/Purpose: Response to therapy in SLE varies significantly and presents a considerable challenge in terms of predictability. Development of predictive models with ability to accurately…
Abstract Number: 0583 • ACR Convergence 2023
Therapeutic Potential of Imvotamab, a CD20-Targeted Bispecific IgM T Cell Engager, for the Treatment of Refractory Autoimmune Disease Patients
Racquel Domingo-Gonzalez¹, Isabelle Baribaud², Miho Oyasu¹, Sivani Pandey¹, Maya Leabman¹, Genevive Hernandez¹, Albert Candia¹, Stephen Carroll¹, Bruce Keyt¹, Maya Kotturi¹, Carrie Brodmerkel² and Mary Beth Harler², ¹IGM Biosciences, Inc., Mountain View, CA, ²IGM Biosciences, Inc., Doylestown, PA
Background/Purpose: B cell depletion therapy (BCDT) with conventional IgG antibodies (e.g.rituximab) has been used to treat autoimmune (AI) disease for several decades. However, many patients…
Abstract Number: 1076 • ACR Convergence 2023
Rituximab-Associated Hypogammaglobulinemia in Patients with Rheumatic Diseases: A Multicenter Retrospective Observational Study
Olga Rusinovich¹, Enrique Calvo-Aranda², Claudia Maria Gomez², Patricio Cardoso Peñafiel², Pilar Navarro Alonso³, Miguel Cantalejo Moreira⁴, Alberto Diaz y Oca³, Pablo Navarro⁵, Maria Machattou⁵, Maria Alonso⁵, Carlota Navarro⁵, Carolina Merino⁵, Hilda Godoy⁶, Maria Carmen Barbadillo Mateos⁷, Carlos Isasi⁵, Maria Perez Ferro⁸, Jessica Polo⁹, Veronica Garcia¹⁰, Jose Luis Andreu-Sánchez¹¹, Jose Campos¹² and Jesus Sanz¹³, ¹Puerta de Hierro Majadahonda University Hospital, Boadilla del Monte, Spain, ²Hospital Universitario Infanta Leonor, Madrid, Spain, ³Fuenlabrada University Hospital, Madrid, Spain, ⁴Hospital Universitario de Fuenlabrada, Madrid, Spain, ⁵Puerta de Hierro Majadahonda University Hospital, Madrid, Spain, ⁶Hospital Universitario Puerta de Hierro, Madrid, Spain, ⁷Public, Madrid, Spain, ⁸Hospital Universitario Rey Juan Carlos, Madrid, Spain, ⁹Rey Juan Carlos University Hospital, Madrid, Spain, ¹⁰Ramon y Cajal University Hospital, Madrid, Spain, ¹¹Rheumatology, Hospital Universitario Puerta de Hierro, Majadahonda, Spain, ¹²Hospital Universitario Puerta de Hierro Majadahonda, Majadahonda, Spain, ¹³Hospital Universitario Puerta de Hierro, Majadahonda, Spain
Background/Purpose: Rituximab (RTX) is a murine/human chimeric monoclonal antibody directed against the CD20 receptor expressed on pre-B and mature B cells. Rituximab is used effectively…
Abstract Number: 2342 • ACR Convergence 2023
Modulation of B Cell and Interferon Pathways by Ianalumab in Patients with Systemic Lupus Erythematosus: Findings from a Phase 2 Clinical Trial
Aida Santos da Costa¹, Thomas Dörner², Andrea Grioni¹, Alexandre Avrameas¹, Ulrike Sommer¹, Rainer Hillenbrand¹, Valeria De Luca¹, Enrico Ferrero¹, Andre Nogueira da Costa¹, Isabelle Isnardi¹ and Stephen J Oliver¹, ¹Novartis Pharma AG, Basel, Switzerland, ²Department of Medicine, Rheumatology and Clinical Immunology, Charité Universitätsmedizin and Deutsches Rheumaforschungszentrum, Berlin, Germany
Background/Purpose: Ianalumab (VAY736) is an afucosylated monoclonal antibody targeting the B cell activating factor receptor (BAFFR) that depletes B cells via enhanced antibody dependent cellular…

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