Abstracts tagged "B-Lymphocyte"

Abstract Number: 0321 • ACR Convergence 2021
Sequential Administration of Belimumab and Rituximab in Primary Sjögren’s Syndrome Reduces Minor Salivary Gland–Resident B Cells and Delays B-Cell Repopulation in Circulation
André van Maurik¹, David Gardner², Saba Nayar², Charlotte Smith², Kenneth Clark¹, Prafull Mistry¹, Rajesh Punwaney³, David Roth³, Robert Henderson¹, Xavier Mariette⁴ and Francesca Barone², ¹GlaxoSmithKline, Stevenage, Hertfordshire, United Kingdom, ²University of Birmingham, College of Medical and Dental Sciences, Birmingham, United Kingdom, ³GlaxoSmithKline, Collegeville, PA, ⁴Université Paris- Saclay, Rheumatology, Paris, France
Background/Purpose: Primary Sjögren’s syndrome (pSS) is characterized by B-cell hyperactivity and elevated serum and saliva B-lymphocyte stimulator (BLyS) levels.1 Sequential administration of belimumab (BEL; anti-BLyS)…
Abstract Number: 0322 • ACR Convergence 2021
Histopathological Changes in Parotid and Labial Salivary Gland Tissue in Primary Sjögren’s Syndrome Patients After Abatacept Treatment
Uzma Nakshbandi¹, Liseth de Wolff², Frans Kroese¹, Silvia Liefers³, Neelanjana Ray⁴, Gwenny Verstappen¹, Fred Spijkervet³, Marleen Nys⁵, Arjan Vissink⁶, Robert Wong⁷, Bert van der vegt³ and Hendrika Bootsma¹, ¹University Medical Center Groningen, Groningen, Netherlands, ²University Medical Centre Groningen, Groningen, Netherlands, ³University of Groningen, University Medical Center Groningen, Groningen, Netherlands, ⁴Bristol-Myers Squibb Company, Lawrenceville, GA, ⁵Bristol Myers Squibb, Braine-l'Alleud, Belgium, ⁶University of Groningen, University Medical Center Groningen, Leek, Netherlands, ⁷Bristol Myers Squibb, Basking Ridge, NJ
Background/Purpose: In a previous open-label phase II study, we showed that abatacept treatment might inhibit local formation of autoreactive memory B cells in parotid glands…
Abstract Number: 0416 • ACR Convergence 2021
Pharmacological Response of Rituximab Based on Dose Intensity in Maintenance Therapy of ANCA-Associated Vasculitis
Jason Springer¹ and Ryan Funk², ¹Vanderbilt University Medical Center, Franklin, TN, ²University of Kansas Medical Center, Kansas City, KS
Background/Purpose: Rituximab (RTX) has demonstrated efficacy in maintenance therapy in ANCA-associated vasculitis. However, different dosing protocols have been used in clinical trials and there is…
Abstract Number: 0460 • ACR Convergence 2021
Single-cell Profiling of B and T Cell Repertoire and Gene Expression in the RA Synovium Reveals Tissue Specific Clonal Expansion
Nida Meednu¹, Aaron Wagner², Garett Dunlap³, Fan Zhang⁴, Anna Helena Jonsson⁵, Kevin Wei⁵, Paul Utz⁶, William Robinson⁷, Holden Maecker⁷, Judith James⁸, Joel Guthridge⁸, S. Louis Bridges, Jr.⁹, Vivian Bykerk⁹, Laura Donlin⁹, Susan Goodman⁹, Edward DiCarlo⁹, Christopher Ritchlin¹⁰, Darren Tabechian², James Lederer¹¹, Ellen Gravallese¹², Mandy McGeachy¹³, Gary Firestein¹⁴, David Boyle¹⁵, Peter Gregersen¹⁶, Diane Horowitz¹⁷, Harris Perlman¹⁸, Arthur Mandelin¹⁸, Joan Bathon¹⁹, Laura Geraldino-Pardilla¹⁹, Laura Hughes²⁰, V. Michael Holers²¹, Kevin Deane²², Larry Moreland²¹, Andrew Filer²³, Costantino Pitzalis²⁴, Lindsy Forbess²⁵, Ami Ben-artzi²⁶, Karen Salomon-Escoto²⁷, Soumya Raychaudhuri⁵, Michael Brenner²⁸, Deepak Rao⁵, Andrew McDavid², Jennifer Anolik¹ and Accelerating Medicines Partership (AMP) RA/SLE Network²⁹, ¹University of Rochester Medical center, Rochester, NY, ²University of Rochester, Rochester, NY, ³Harvard University, Somerville, MA, ⁴Harvard Medical School, Boston, MA, ⁵Brigham and Women's Hospital, Boston, MA, ⁶Stanford University, Stanford, CA, ⁷Stanford University, Palo Alto, CA, ⁸Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁹Hospital for Special Surgery, New York, NY, ¹⁰Division of Allergy, Immunology, and Rheumatology, School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY, ¹¹Brigham and Women's Hospital and Harvard Medical School, Millis, MA, ¹²Brigham and Women's Hospital, Harvard Medical School, Chestnut Hill, MA, ¹³University of Pittsburgh, Pittsburgh, PA, ¹⁴University of California San Diego, San Diego, CA, ¹⁵University of California San Diego, La Jolla, CA, ¹⁶The Feinstein Institute for Medical Research, Larchmont, NY, ¹⁷Northwell Health, Jericho, NY, ¹⁸Northwestern University, Chicago, IL, ¹⁹Columbia University, New York, NY, ²⁰University of Alabama at Birmingham, Birmingham, AL, ²¹University of Colorado, Denver, CO, ²²University of Colorado Denver, Denver, CO, ²³University of Birmingham, Birmingham, United Kingdom, ²⁴Queen Mary University of London, London, United Kingdom, ²⁵Cedars-Sinai Medical Center, Los Angeles, CA, ²⁶Cedars-Sinai Medical Center, Beverly Hills, CA, ²⁷University of Massachusetts Medical School, Shrewsbury, MA, ²⁸Brigham and Women's Hospital, Harvard Medical School, Newton, MA, ²⁹Brigham and Women's Hospital, Everett, MA
Background/Purpose: B cell and T cell activation pathways in the synovium are an incompletely understood feature of rheumatoid arthritis. In this study, utilizing single cell…
Abstract Number: 0982 • ACR Convergence 2021
B Cells Repertoire Repartition Predicts Response to Methotrexate at 6 and 12 Months in Naïve RA: A Machine Learning Driven Approach
Aurelie Najm¹, Shrutii Sarda², Michelle Toro³, Loni Pickle³, Stephanie Ostresh³, Fraser Morton⁴, Geoffrey Lowman³, Andrew Felton⁵ and Carl Goodyear⁴, ¹Institute of Infection, Immunity and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom, ²Clinical Sequencing Division, Specialty Diagnostics Group, Thermo Fisher Scientific, South San Francisco-CA, United States, San Francisco, ³Clinical Sequencing Division, Specialty Diagnostics Group, Thermo Fisher Scientific, Carlsbad, CA, ⁴University of Glasgow, Glasgow, United Kingdom, ⁵VP, Platforms, Research & Applied, Specialty Diagnostics Group, South San Francisco, CA
Background/Purpose: The adaptive immune system plays a central role in Rheumatoid Arthritis (RA) pathogenesis. Moreover, the composition of the B cell repertoire and its perturbation…
Abstract Number: 0986 • ACR Convergence 2021
Ianalumab (VAY736) Safety and Efficacy in Patients with Sjögren’s Syndrome: 52 Week Results from a Randomized, Placebo-controlled, Phase 2b Dose-ranging Trial
Thomas Dörner¹, Simon J Bowman², Robert Fox³, Xavier Mariette⁴, Athena Papas⁵, Thomas Grader-Beck⁶, Ben A Fisher², Filipe Barcelos⁷, Salvatore De Vita⁸, Hendrik Schulze-Koops⁹, Robert Moots¹⁰, Guido Junge¹¹, Janice Woznicki¹², Monika Sopala¹¹, Wen-Lin Luo¹² and Wolfgang Hueber¹¹, ¹Charite Universitätsmedizin Berlin and Deutsches Rheumaforschungszentrum (DRFZ), Berlin, Germany, ²Department of Rheumatology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom, ³Scripps Memorial Hospital and Research Institute, San Diego, CA, ⁴Université Paris- Saclay, Rheumatology, Paris, France, ⁵Division of Oral Medicine, Tufts School of Dental Medicine, Boston, MA, ⁶Johns Hopkins University, Baltimore, MD, ⁷Instituto Português de Reumatologia, Lisbon, Portugal, ⁸Division of Rheumatology, DAME, University Hospital of Udine, Udine, Italy, ⁹Division of Rheumatology and Clinical Immunology, Department of Internal Medicine IV, University of Munich, Munich, Germany, ¹⁰Academic Rheumatology Department, Aintree University Hospital, Liverpool, United Kingdom, ¹¹Novartis Pharma AG, Basel, Switzerland, ¹²Novartis Pharmaceuticals Corporation, East Hanover, NJ
Background/Purpose: Sjögren’s syndrome (SS) is an autoimmune disease affecting excretory glands and characterized by B-cell hyperactivity. Ianalumab (VAY736) is a human monoclonal antibody to B-cell…
Abstract Number: 1224 • ACR Convergence 2021
Low CD39 Expression on B Cells Predicts the Occurrence of Anti-Drug Antibodies in RA Patients Treated with Rituximab
Samuel Bitoun¹, Bineta Ly², Signe Hässler³, Audrey Paoletti⁴, Aude Gleizes⁵, Salima Hacein-Bey⁵, Philippe Bröet³, Marc Pallardy⁶ and Xavier Mariette⁷, ¹Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Université Paris-Saclay, INSERM UMR 1184 FHU CARE, Paris, France, ²INSERM U1184, Université Paris Saclay, Le Kremlin Bicêtre, France, ³CESP, INSERM UMR 1018, Universite Paris-Saclay, Villejuif, France, ⁴INSERM U1184, Université Paris Saclay, le kremlin bicetre, France, ⁵Hôpital Bicètre, APHP, Université Paris-Saclay, Le Kremlin Bicêtre, France, ⁶Faculté de Pharmacie, Université Paris-Saclay, Chatenay Mallabry, France, ⁷Université Paris- Saclay, Rheumatology, Paris, France
Background/Purpose: Anti-Drug antibodies (ADAb) are well studied and have an impact on response to treatment with monoclonal anti-TNF biologics. Rituximab treatment has an important immunogenic…
Abstract Number: 1251 • ACR Convergence 2021
Serum B Cell Activating Factor Reflects Good EULAR Response to TNF Inhibition in Patients with Rheumatoid Arthritis
Borja Hernandez-Breijo¹, Ioannis Parodis², Chamaida Plasencia-Rodríguez³, Mariana Díaz-Almirón⁴, Ana Martínez-Feito⁵, Marta Novella-Navarro³, Dora Pascual-Salcedo¹ and Alejandro Balsa³, ¹Immuno-Rheumatology Research Group, Hospital La Paz Institute for Health Research-IdiPAZ, Madrid, Spain, ²Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden and Department of Rheumatology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden, ³Immuno-Rheumatology Research Group, Hospital La Paz Institute for Health Research-IdiPAZ, Rheumatology, La Paz University Hospital, Madrid, Spain, ⁴Biostatistics Unit, Hospital La Paz Institute for Health Research-IdiPAZ, Madrid, Spain, ⁵Immuno-Rheumatology Research Group, Hospital La Paz Institute for Health Research-IdiPAZ, Immunology Unit, La Paz University Hospital, Madrid, Spain
Background/Purpose: The latest breakthroughs in the pathophysiology of rheumatoid arthritis (RA) highlighted the activation of B cells as a trigger of the joint flare initiation…
Abstract Number: 1301 • ACR Convergence 2021
Early Increase in Circulating Memory B Cells Portends Clinical Response to Treatment in Pooled Data from Three Phase III Trials of Belimumab
Ioannis Parodis¹, Alvaro Gomez², Julius Lindblom², Alexander Borg², Sharzad Emamikia² and Mariele gatto³, ¹Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden and Department of Rheumatology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden, ²Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ³Department of Rheumatology, University of Padua, Padua, Italy
Background/Purpose: Belimumab blocks soluble B cell activating factor (BAFF) and is the only to date approved targeted treatment for systemic lupus erythematosus (SLE). Identification of…
Abstract Number: 1303 • ACR Convergence 2021
Associations Between Early Changes in Circulating B Cell Subsets and Severe Flare in Systemic Lupus Erythematosus – Results from Three Phase III Trials of Belimumab
Ioannis Parodis¹, Alvaro Gomez², Julius Lindblom², Alexander Borg², Sharzad Emamikia² and Mariele gatto³, ¹Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden and Department of Rheumatology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden, ²Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ³Department of Rheumatology, University of Padua, Padua, Italy
Background/Purpose: Belimumab is the only approved targeted treatment for systemic lupus erythematosus (SLE). Identification of early predictors of response or non-response to therapy is imperative…
Abstract Number: 1429 • ACR Convergence 2021
ALPN-303, an Enhanced, Potent Dual BAFF/APRIL Antagonist Engineered by Directed Evolution for the Treatment of Systemic Lupus Erythematosus (SLE) and Other B Cell-Related Diseases
Stacey Dillon, Lawrence Evans, Katherine Lewis, Jing Yang, Mark Rixon, Joe Kuijper, Daniel Demonte, Janhavi Bhandari, Steven Levin, Kayla Kleist, Sherri Mudri, Susan Bort, Daniel Ardourel, Michelle Seaberg, NinXin Wang, Chelsea Gudgeon, Russell Sanderson, Martin Wolfson, Jan Hillson, Pamela Holland and Stanford Peng, Alpine Immune Sciences, Seattle, WA
Background/Purpose: B cell activating factor (BAFF) and a proliferation inducing ligand (APRIL) are TNF superfamily members that bind TACI (transmembrane activator and CAML interactor), BCMA…
Abstract Number: 0184 • ACR Convergence 2020
Lymphomas Complicating Rheumatoid Arthritis: Results of a French Multi-Centre Case-Control Study
Joanna Kedra¹, Raphaèle Seror², Philippe Dieude³, Arnaud Constantin⁴, Eric Toussirot⁵, Elias Kfoury⁶, Charles Masson⁷, Divi Cornec⁸, Jean-Jacques Dubost⁹, Laurent Marguerie¹⁰, Sebastien Ottaviani¹¹, Franck Grados¹², Rakiba Belkhir¹³, Olivier Fain¹⁴, Philippe Goupille¹⁵, Christelle Sordet¹⁶, Bruno Fautrel¹⁷, Peggy Philippe¹⁸, Muriel Piperno¹⁹, Bernard Combe²⁰, Olivier Lambotte²¹, Christophe Richez²², Jeremie Sellam²³, Thomas Sené²⁴, Guillaume Denis²⁵, Thierry Lequerre²⁶, Xavier Mariette²⁷ and Gaetane Nocturne¹³, ¹Sorbonne Université, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR S1136, Paris, France, Paris, France, ²Rheumatology Department, Bicetre Hospital, APHP, France, Paris, France, ³Université de Paris, Service de Rhumatologie Hôpital Bichat-Claude Bernard, AP-HP, Paris, Ile-de-France, France, ⁴Rheumatology Department, Toulouse University Hospital, Toulouse, France, ⁵CIC biotherapies, Besançon University Hospital, Besançon, France, ⁶Hematology Department, Brive La Gaillarde Hospital, Brive la Gaillarde, France, ⁷Rheumatology Department, Angers University Hospital, Angers, France, ⁸Rheumatology Department, Brest University Hospital, Brest, France, ⁹CHU Gabriel Montpied, Clermont-Ferrand, France, ¹⁰Department of medicine, rheumatology and neurology, Hopale hospital, Berck, France, ¹¹Rheumatology Department, Bichat hospital, APHP, Paris, France, ¹²Rheumatology Department, Amiens University Hospital, Amiens, France, ¹³Rheumatology Department, Bicetre Hospital, APHP, France, Le Kremlin-Bicêtre, France, ¹⁴Internal Medicine Department, Saint-Antoine hospital, APHP, Paris, France, ¹⁵CHU Tours, department of rheumatology, Tours, France, ¹⁶Rheumatology Department, Strasbourg University Hospital, Strasbourg, France, ¹⁷Sorbonne University, INSERM, IPLES; Pitié-Salpêtrière Hospital, Paris, Ile-de-France, France, ¹⁸Rheumatology Department, Lille University Hospital, Lille, France, ¹⁹Rheumatology Department, Lyon University Hospital, Lyon, France, ²⁰University of Montpellier, Montpellier, France, ²¹Internal Medicine Department, Bicetre Hospital, APHP, Le Kremlin-Bicêtre, France, ²²Rheumatology Hospital, Pelligrin Hospital, Bordeaux University Hospital, Bordeaux, France, ²³AP-HP, Hôpital Saint-Antoine, Service de Rhumatologie, Centre de Recherche Saint-Antoine, INSERM UMR_S 938,Sorbonne Université, Paris, 75012, France, Paris, France, ²⁴Department of internal medicine, Diaconesses-Croix Saint-Simon Hospital, Paris, France, ²⁵Hematology Department, Rochefort Hospital, Rochefort, France, ²⁶Rheumatology, University Teaching Hospital, Rouen, France, ²⁷Paris-Sud University, Rueil-Malmaison, France
Background/Purpose: Rheumatoid arthritis (RA) is associated with an increased risk of non-Hodgkin B-cell lymphoma (B-cell NHL). The objectives of this work were:To study the characteristics of…
Abstract Number: 0994 • ACR Convergence 2020
Does Tofacitinib Impact B Cell Functions?
Guillaume Decarriere¹, Julie Mielle², Bernard Combe³, Jacques Morel¹, Rachel Audo² and Claire Daien¹, ¹Rheumatology department, CHU Montpellier and University of Montpellier, Montpellier, France, ²Institut de génétique moléculaire de Montpellier (IGMM), Montpellier, France, ³University of Montpellier, Montpellier, France
Background/Purpose: Tofacitinib (tofa) inhibits cytokine signaling mediated by JAK1 JAK3 pathways leading therefore to a decrease in Th17 and an increase of Treg cells. The…
Abstract Number: 0286 • ACR Convergence 2020
An SLE-linked ITGAM Gene Variant Changes Mac-1 Structure, Signaling, and Surface Expression and Enhances IFNg Production and Antigen Presentation by B Cells
Joseph Blake¹, Alexander Szalai², Jeffrey Edberg³ and James Mobley³, ¹UAB, Birmingham, ²University of Alabama at Birmingham, birmingham, AL, ³UAB, Birmingham, AL
Background/Purpose: SLE is a chronic and debilitating disease; in the USA with an estimated incidence of 3-10 per 100,000 people and currently affecting an estimated…
Abstract Number: 0996 • ACR Convergence 2020
Bacteria-Derived Indole Drives Autoimmune Arthritis by Altering B Cell Glycosylation of Autoantibodies
Brandon Trent¹, Meagan Chriswell², Widian Jubair³ and Kristine Kuhn¹, ¹University of Colorado Anschutz Medical Campus, Aurora, CO, ²UC Denver SOM, Denver, CO, ³University of Colorado Denver, Denver, CO
Background/Purpose: Background: Dysbiosis of gut bacterial communities in rheumatoid arthritis (RA) is a noted phenomenon in both murine models and human patients; however, the mechanisms…

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