Abstracts tagged "B-Lymphocyte"

Abstract Number: 0008 • ACR Convergence 2021
Jo-1-Binding and Clonally-Expanded Memory B Cells Express Germline and Somatically-Mutated B Cell Receptors in Anti-tRNA Synthetase Syndrome Patients
Erin Wilfong, Alberto Cisneros, Jennifer Young-Glazer, Scott Smith, Leslie Crofford and Rachel Bonami, Vanderbilt University Medical Center, Nashville, TN
Background/Purpose: Anti-tRNA synthetase syndrome (ARS) is a severe systemic autoimmune disease associated with myositis, interstitial lung disease, rash, and arthritis. ARS is associated with autoantibodies…
Abstract Number: 1905 • ACR Convergence 2021
CD11c+ Expression Associates with IFN-λ Responsiveness in Human B Cells with Clinical Implications for SLE
Jennifer Barnas¹, Jennifer Barnard², Cameron Baker², Nida Meednu², Andrew McDavid¹, R. John Looney¹ and Jennifer Anolik², ¹University of Rochester, Rochester, NY, ²University of Rochester Medical Center, Rochester, NY
Background/Purpose: Type I interferon (IFN), namely IFN- α, and B cell aberrations are long recognized in systemic lupus erythematosus (SLE) pathogenesis. Type I IFN receptor…
Abstract Number: 0010 • ACR Convergence 2021
Relaxed Peripheral Tolerance Drives Broad de Novo Autoreactivity in Severe COVID-19
Matthew Woodruff¹, Richard Ramonell², Ankur Singh Saini², Mark Rudolph³, F. Eun-Hyung Lee² and Iñaki Sanz⁴, ¹Emory University, Decatur, GA, ²Emory University, Atlanta, GA, ³Exagen Inc., Vista, CA, ⁴Emory University School of Medicine, Atlanta, GA
Background/Purpose: An emerging feature of COVID-19 is the identification of autoreactivity in patients with severe disease that may contribute to disease pathology, however the origins…
Abstract Number: 1907 • ACR Convergence 2021
Increased Otoferlin Expression in B Cells Is Associated with Muscle Weakness in Untreated Juvenile Dermatomyositis: A Pilot Study
Ameera Bukhari¹, Amer Khojah², Wilfredo Marin³, Gabrielle Morgan⁴ and Lauren Pachman⁵, ¹Department of Microbiology and Immunology, Loyola University Chicago, Chicago, IL, ²Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ³Ann & Robert H. Lurie Children's Hospital, Chicago, IL, ⁴Ann & Robert H. Lurie Children's Hospital of Chicago and Northwestern University Feinberg School of Medicine, Chicago, IL, ⁵Northwestern's Feinberg School of Medicine. Ann and Robert H. Lurie Children's Hospital of Chicago; Stanley Manne Children's Research Institute of Chicago, Lake Forest, IL
Background/Purpose: Juvenile Dermatomyositis (JDM) is a rare pediatric inflammatory myopathy with a complex pathophysiology. Previously our group showed a significant increase in Otoferlin mRNA expression…
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: 0974 • ACR Convergence 2020
Role of NR4A Nuclear Receptor Family in RA Synovial Ectopic Lymphoid Neogenesis Revealed by Single Cell Profiling
Nida Meednu¹, Fan Zhang², Katherine Escalera-Rivera¹, Elisa Corsiero³, Edoardo Prediletto³, Michele Bombardieri⁴, Edward DiCarlo⁵, Dana Orange⁶, Susan Goodman⁷, Laura Donlin⁸, Soumya Raychaudhuri², Costantino Pitzalis⁴, Andrew McDavid¹ and Jennifer Anolik¹, ¹University of Rochester Medical center, Rochester, NY, ²Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, ³Queen Mary University of London, London, England, United Kingdom, ⁴Queen Mary University of London, London, United Kingdom, ⁵Hospital for Special Surgery, New York, ⁶Rockefeller University, New York, ⁷Hospital for Special Surgery, Weill Cornell Medicine, New York, NY, ⁸Hospital for Special Surgery, Weill Cornell Medicine, New York
Background/Purpose: Ectopic lymphoid structures (ELS) have been observed in synovial tissue of rheumatoid arthritis (RA) patients but their functional relevance in the disease remains unclear.…
Abstract Number: 1525 • ACR Convergence 2020
Intergenic HLA Variants in African American Patients with Systemic Sclerosis Regulate Expression of HLA-DRB1
Urvashi Kaundal¹, Julia Hartman², Chloe Borden², Janet Wang³, Ami Shah⁴, Maureen Mayes⁵, Ayo Doumatey⁶, Amy Bentley⁷, Daniel Shriner⁶, Robyn Domsic⁸, Thomas Medsger⁹, Paula Ramos¹⁰, Richard Silver¹¹, Virginia Steen¹², John Varga¹³, Vivien Hsu¹⁴, Lesley Ann Saketkoo¹⁵, Elena Schiopu¹⁶, Dinesh Khanna¹⁷, Jessica Gordon¹⁸, Lindsey Criswell¹⁹, Heather Gladue²⁰, Chris Derk²¹, Elana Bernstein²², S. Louis Bridges²³, Victoria Shanmugam²⁴, Kathleen Kolstad²⁵, Lorinda Chung²⁶, Suzanne Kafaja²⁷, Reem Jan²⁸, Marcin Trojanowski²⁹, Avram Goldberg³⁰, Benjamin Korman³¹, Monique Hinchcliff³², Settara Chandrasekharappa⁶, Massimo Gadina², Davide Randazzo², Stefania Dell'Orso², Adebowale Adeyemo⁶, Charles Rotimi⁶, Elaine Remmers⁶, Fredrick Wigley³³, Rafael Casellas², Daniel Kastner⁶, Francesco Boin³⁴ and Pravitt Gourh¹, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), NIH, Bethesda, ²National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), NIH, Bethesda, MD, ³National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), NIH, Beachwood, OH, ⁴Johns Hopkins University School of Medicine, Ellicott City, MD, ⁵University of Texas Houston McGovern Medical School, Division of Rheumatology and Clinical Immunogenetics, Houston, TX, ⁶National Human Genome Research Institute (NHGRI), NIH, Bethesda, MD, ⁷National Human Genome Research Institute (NHGRI), NIH, Bethedsa, MD, ⁸University of Pittsburgh School of Medicine, Pittsburgh, PA, ⁹University of Pittsburgh School of Medicine, Verona, PA, ¹⁰Medical University of South Carolina, Charleston, SC, ¹¹Medical University of South Carolina, Charleston, ¹²Division of Rheumatology, Department of Medicine, MedStar Georgetown University Hospital, Washington, DC, ¹³Northwestern University, Chicago, IL, ¹⁴Rutgers-RWJ Medical School, South Plainfield, NJ, ¹⁵Scleroderma Patient Care and Research Center, Tulane University, New Orleans, LA, ¹⁶Michigan Medicine, Ann Arbor, MI, ¹⁷University of Michigan, Ann Arbor, MI, ¹⁸Hospital for Special Surgery, New York, NY, ¹⁹Rosalind Russell/Ephraim P. Engleman Rheumatology Research Center, University of California San Francisco, San Francisco, CA, ²⁰Arthritis and Osteoporosis Consultants of the Carolinas, Charlotte, NC, ²¹University of Pennsylvania, Philadelphia, PA, ²²Columbia University, New York, NY, ²³University of Alabama at Birmingham, Mountain Brk, AL, ²⁴The George Washington University, Washington, DC, ²⁵Division of Immunology & Rheumatology, Stanford University School of Medicine, Palo Alto, CA, ²⁶Stanford University School of Medicine and Palo Alto VA Health Care System, Palo Alto, CA, ²⁷David Geffen School of Medicine, UCLA, Los Angeles, CA, ²⁸Pritzker School of Medicine, University of Chicago, Chicago, IL, ²⁹Boston University Medical Center, BOSTON, MA, ³⁰NYU Langone Medical Center - NYU Hospital for Joint Diseases, Lake Success, NY, ³¹Department of Medicine, University of Rochester Medical Center, Rochester, NY, ³²Yale School of Medicine, Westport, CT, ³³Johns Hopkins University School of Medicine, Baltimore, MD, ³⁴University of California San Francisco, Cedars-Sinai, West Hollywood, CA
Background/Purpose: Genome-wide association study (GWAS) from the Genome Research in African American Scleroderma Patients (GRASP) cohort has identified the human leukocyte antigen (HLA) region as…
Abstract Number: 0977 • ACR Convergence 2020
Expanded T Peripheral Helper Cells and Increased Pathologic B Cell Lung Infiltration in Pristane-induced Murine Lupus in the Absence of BCL6+ Tfh Cells
Runci Wang¹, Pui Lee², Peter Nigrovic³ and Deepak Rao¹, ¹Brigham and Women's Hospital, Boston, MA, ²1.Boston Children's Hospital;2.Brigham and Women's Hospital;3.Harvard Medical School, Newton, MA, ³Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA, Boston
Background/Purpose: PD-1hi CXCR5- T peripheral helper (Tph) cells are highly expanded in RA and SLE patients. Like T follicular helper (Tfh) cells, human Tph cells…
Abstract Number: 1836 • ACR Convergence 2020
Alternative Renal Response Definitions in a Randomized, Controlled Trial of Obinutuzumab for Proliferative Lupus Nephritis
Zahir Amoura¹, Philippe Remy², Luis Fernando Quintana Porras³, Laurent Chiche⁴, Dominique Chauveau⁵, Dario Roccatello⁶, Richard Furie⁷, Thomas Schindler⁸, Jay Garg⁹, Matthew Cascino⁹, Brad Rovin¹⁰ and Andrea Doria¹¹, ¹Hôpital Pitié-Salpêtrière, Paris, ²APHP Groupe Hospitalier Henri-Mondor, Creteil, France, ³Hospital Clinic de Barcelona, Barcelona, Catalonia, Spain, ⁴Hôpital Européen, Marseille, France, ⁵Hôpital Rangueil, Centre Hospitalier Univ de Toulouse, Toulouse, France, ⁶S Giovanni Hospital, Univ of Turin, Turin, Italy, ⁷Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY, ⁸F. Hoffmann-La Roche Ltd., Basel, Switzerland, ⁹Genentech, Inc., South San Francisco, CA, ¹⁰The Ohio State University, Columbus, ¹¹University of Padua, Padua, Italy
Background/Purpose: Obinutuzumab, a type II anti-CD20 mAb, resulted in rapid and complete B-cell depletion and improved renal responses in proliferative lupus nephritis (LN) in the…

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