Abstracts tagged "B-Cell Targets"

Abstract Number: 2425 • ACR Convergence 2024
Ianalumab Induced Durable Depletion of Circulating B Cell Subsets and Associated Changes in B Cell and Neutrophil Transcriptomic and Proteomic Profiles in Patients with Systemic Lupus Erythematosus: 52-Week Treatment Results from a Phase 2 Trial
Marianna Rowlands¹, Thomas Dörner², Diego Saldana Miranda³, Justin McMullen³, Aida Santos da Costa³, Ulrike Sommer³, Rainer Hillenbrand³, Andre Nogueira da Costa³, Claire Bonal³, Isabelle Isnardi³, Edward Khokhlovich¹ and Stephen J Oliver³, ¹Biomedical Research, Novartis, Cambridge, MA, ²Department of Medicine, Rheumatology and Clinical Immunology,Charite Universitätsmedizin Berlin, Germany and DRFZ, Berlin, Berlin, Germany, ³Novartis Pharma AG, Basel, Switzerland
Background/Purpose: Ianalumab (VAY736), a B cell activating factor receptor (BAFFR) targeting mAb, depletes B cells via both antibody dependent cellular cytotoxicity and blockade of BAFF:BAFFR…
Abstract Number: 0006 • ACR Convergence 2024
NX-5948, a Clinical-Stage BTK Degrader, Achieves Deep Suppression of BCR, TLR, and FcR Signaling in Immune Cells and Demonstrates Efficacy in Preclinical Models of Arthritis and Other Inflammatory Diseases
Mark Noviski¹, Jun Ma¹, Nivetha Brathaban¹, Aishwarya Kumar¹, Dhwani Haria¹, Jenny McKinnell¹, Robert Cass¹, Frederick Cohen¹, Davorka Messmer², Gwenn Hansen¹ and Ryan Rountree¹, ¹Nurix Therapeutics, San Francisco, CA, ²Nurix Therapeutics, San Diego, CA
Background/Purpose: Bruton’s tyrosine kinase (BTK) mediates signaling downstream of the B cell receptor (BCR), toll-like receptors (TLRs), and Fc receptors (FcRs). This makes BTK an…
Abstract Number: 0536 • ACR Convergence 2024
A Population Modeling and Simulation of the Effect of Obexelimab Exposure on the QTc Interval in Healthy Volunteers and Patients with Rheumatoid Arthritis or IgG4-Related Disease
Claire Mukashyaka¹, Xiaodong Wang¹, Sujata Arora¹, Mason Yamashita¹, Allen Poma¹ and Tanya Fischer², ¹Zenas BioPharma, Waltham, MA, ²Zenas BioPharma, Waltham, CA
Background/Purpose: Obexelimab is a novel bifunctional antibody that inhibits B cells, CD19-expressing plasma cells, and plasmablast activity and has the potential to provide clinical benefit…
Abstract Number: 1551 • ACR Convergence 2024
Efficacy of Belimumab on Different Phenotypes of Joint and Skin Manifestations of Systemic Lupus Erythematosus: Preliminary Data from a Multicenter, Nationwide, Cohort of Patients: The BElimumab in Real Life Setting Study-New Joint and Skin (BeRLISS-NeJS)
Luca Iaccarino¹, Marisol Bracalenti², Alberto Cauli³, Lorenzo Cavagna⁴, Rossella De Angelis⁵, Roberto Depascale², Giacomo Emmi⁶, Roberto Gerli⁷, Marcello Govoni⁸, Alberto Lo Gullo⁹, Simone Negrini¹⁰, Luca Quartuccio¹¹, Maurizio Rossini¹², Carlo Salvarani¹³, Paola Tomietto¹⁴, Angelo Vacca¹⁵, Margherita Zen¹⁶ and doria Andrea², ¹University of Padua, PADOVA, Italy, ²University of Padova, Padova, Italy, ³University of Cagliari, Cagliari, Italy, ⁴University of Pavia and Fondazione IRCCS Policlinico San Matteo Hospital of Pavia, Pavia, Pavia, Italy, ⁵Università Politecnica delle Marche, Ancona, Italy, ⁶University of Trieste, Trieste, Italy, ⁷University of Perugia, Perugia, Italy, ⁸Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Azienda Ospedaliero-Universitaria S.Anna, Ferrara, Italy, Ferrara, Italy, ⁹Rheumatology Unit, Papardo Hospital, Messina, Italy, ¹⁰University of Genova, Genova, Italy, ¹¹Division of Rheumatology, Department of Medicine (DMED), University of Udine, Udine, Italy, Udine, Italy, ¹²Rheumatology Unit, University of Verona, Verona, Italy, ¹³Azienda USL-IRCCS di Reggio Emilia and University of Modena and Reggio Emilia, Reggio Emilia, Italy, Reggio Emilia, Italy, ¹⁴Azienda Sanitaria Universitaria Giuliano Isontina, trieste, Italy, ¹⁵University of Bari, Bari, Italy, ¹⁶University of Padova, Padova, Padua, Italy
Background/Purpose: To evaluate the efficacy of belimumab on different skin and joint manifestations of the disease in a multicenter, nationwide, cohort (BeRLISS-NeJS) of patients with…
Abstract Number: 2436 • ACR Convergence 2024
Characterization of RO7507062, a CD19-Targeting T-Cell Bispecific Antibody (CD19TCB), and Design of Its Ongoing Phase 1 Trial in Systemic Lupus Erythematosus
Florian Kollert¹, Sarah Robertson², Veit Erpenbeck², Franziska Regenass-Lechner³, Remy Hallet³, Jason Neale², Cary M. Looney², Nicolas Frances², Celine Marban-Doran², Sophia Fredrika Soehrman Brossard², Laurie Millar⁴, Beki Finch⁵, Johannes Sam⁶, Benjamin A. Fisher⁷, Maria Leandro⁸, Thomas Dörner⁹, Christian Klein¹⁰ and Franz Schuler², ¹University Hospital Basel, Basel, Switzerland, ²F. Hoffmann-La Roche Ltd., Basel, Switzerland, ³F. Hoffmann-La Roche Ltd, Basel, Switzerland, ⁴F. Hoffmann-La Roche Ltd., Welwyn Garden City, England, United Kingdom, ⁵F. Hoffmann-La Roche Ltd., Welwyn Garden City, United Kingdom, ⁶F. Hoffmann-La Roche Ltd, Schlieren, Zurich, Switzerland, ⁷University of Birmingham, Birmingham, United Kingdom, ⁸University College London, London, United Kingdom, ⁹Department of Medicine, Rheumatology and Clinical Immunology,Charite Universitätsmedizin Berlin, Germany and DRFZ, Berlin, Berlin, Germany, ¹⁰F. Hoffman-La Roche Ltd., Schlieren, Zurich, Switzerland
Background/Purpose: CD20-directed B-cell depletion therapy shows efficacy in hematological malignancies and in multiple autoimmune indications. More recently, promising data for the use of CD19-targeted B-cell…
Abstract Number: 0008 • ACR Convergence 2024
Preclinical Development and Manufacturability of KYV-201, an Investigational Allogeneic Anti-CD19 Chimeric Antigen Receptor T Cell for the Treatment of Autoimmune Disease
Ashley Mahne¹, Ryan Rodriguez², Jessica Wang¹, Daniel Anaya¹, Joseph K. Cheng¹, Brandon Kwong¹, Jesus Banuelos³, Peter Starokadomskyy³, Soo Park³, Candice Gibson⁴, Shouvonik Sengupta¹, Simone Sandoval¹, Jazmin Bravo³, Jeanne Flandez¹, Shairaz Shah¹, Amanda Goodsell¹, Nicole Khoshnoodi¹, Jennifer Zeng¹, Santiago Foos-Russ¹, Mario Lorente¹, Jennifer Adrian¹, Timothy Klasson¹, Yong Zhang⁵, Jessica Seitzer⁶, Birgit Schultes⁵ and Tom Van Blarcom³, ¹Kyverna Therapeutics, Inc., Emeryville, CA, ²Kyverna Therapeutics, Inc., Emerville, CA, ³Kyverna Therapeutics, Inc., Emeryville, ⁴Kyverna Therapeutics, Inc., Emerybille, ⁵Intellia Therapeutics, Inc., Cambridge, MA, ⁶Intellia Therapeutics, Inc., Cambridge
Background/Purpose: Autologous anti-CD19 chimeric antigen receptor (CAR) T cells show early clinical evidence of safety and efficacy for treating several autoimmune diseases (Müller F. N Engl…
Abstract Number: 0666 • ACR Convergence 2024
Interferon-stimulated Genes on Peripheral CD8+ T Cells of SLE Patients Were the Keys for Early Response to BAFF/APRIL-targeted Therapy
Cuiling Fan¹, Shixian Chen² and Juan Li¹, ¹Department of Rheumatology and Immunology, Nanfang Hospital, Southern Medical University, Guangzhou, China, Guangzhou, China (People's Republic), ²Nanfang Hospital, Southern Medical University, guangzhou, China (People's Republic)
Background/Purpose: Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease. BAFF/APRIL-targeted therapy exert therapeutic effects through the inhibition of B-cell activating factor (BAFF) and a…
Abstract Number: 1646 • ACR Convergence 2024
A Novel E3 Ligase of GILZ: Validation of a Steroid-sparing Therapeutic Target in SLE
Iolanda Miceli¹, Rochelle Sherlock², Pamela Hall², IanIan Cheang², Akshay D'Cruz³, Taylah Bennett², Terry Lim Kam Sian², Rangi Kandane-Rathnayake⁴, Eric Morand⁵ and Sarah Jones², ¹Monash University, Glen Iris, Victoria, Australia, ²Monash University, Melbourne, Australia, ³Monash University, Me, Australia, ⁴Monash University, Clayton, Victoria, Australia, ⁵School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia
Background/Purpose: SLE is primarily mediated by B cell dysregulation on a background of type I interferon (IFN) activation. This multi-faceted nature of immune defects in…
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…

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