Abstracts tagged "B-Lymphocyte"

Abstract Number: 2599 • ACR Convergence 2024
Xist Deletion in B Cells Results in Systemic Lupus Erythematosus Phenotypes
Claudia Lovell¹, Nikhil Jiwrajka², Hayley Amerman³, Michael Cancro⁴ and Montserrat Anguera⁵, ¹Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, ²Hospital of the University of Pennsylvania, Philadelphia, PA, ³University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, ⁴Perelman School of Medicine, Philadelphia, PA, ⁵University of Pennsylvania, Philadelphia, PA
Background/Purpose: Systemic lupus erythematosus (SLE) exhibits a strong female sex bias but the mechanisms underlying this bias are not well understood. Epidemiological studies demonstrate that…
Abstract Number: 0779 • ACR Convergence 2024
Sex Differences in the B Cell Compartment of Patients with Oligoarticular Juvenile Idiopathic Arthritis
Ki Pui Lam¹, Claudia Harris¹, Daniela Fernandez-Salinas¹, Maryrose Hahn², Maryam Ashoor³, Ahmad Bakhsh¹, Carrie Bryant¹, Siobhan Case¹, Mia Chandler⁴, Joyce Chang⁵, Ezra Cohen¹, Fatma Dedeoglu³, Olha Halyabar¹, Jonathan Hausmann¹, Melissa Hazen³, Daniel Ibanez¹, Liyoung Kim¹, Jeffrey Lo³, Mindy Lo³, Esra Meidan⁶, Megan Perron¹, Helene Powers¹, Mary Beth Son⁵, Holly Wobma⁷, Pui Lee⁸, Peter Nigrovic⁵, Laurie Ohlms⁹, Margaret Chang³, Maria Gutierrez-Arcelus³ and Lauren Henderson¹⁰, ¹Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, ²Boston Children's Hospital, Georgetown, MA, ³Boston Children's Hospital, boston, MA, ⁴Boston Children’s Hospital, Boston, MA, ⁵Boston Children's Hospital, Brookline, MA, ⁶Boston Children's Hospital, Somerville, MA, ⁷Division of Immunology, Boston Children's Hospital, Boston, MA, ⁸Boston Children's Hospital, Newton, MA, ⁹Department of Otolaryngology & Communication Enhancement, Boston Children’s Hospital, Harvard Medical School, Boston, MA, ¹⁰Boston Children's Hospital, Watertown, MA
Background/Purpose: T peripheral helper (Tph) cells accumulate in the joints of children with ANA+ oligoarticular juvenile idiopathic arthritis (oligo JIA) and may provide pathogenic help…
Abstract Number: 1650 • ACR Convergence 2024
IL-33 Expands Plasma Cells, Disrupts Germinal Centers and Increases Autoantibody Production
Andre Limnander¹, Eva Conde¹, Seblewongel Asrat², Andrea Vecchione², Kaitlyn Gayvert², Paulina Pedraza², Carley Tasker², Sharon Huang², Dmitry Yarilin², Dylan Birchard², Li-Hong Ben², Wei Keat Lim², Andrew Murphy², Matthew Sleeman² and Jamie orengo¹, ¹Regeneron Pharmaceuticals, Tarrytown, NY, ²Regeneron Pharmaceuticals, Tarrytown
Background/Purpose: IL-33 is a pro-inflammatory cytokine that plays a role in asthma, COPD and autoimmune diseases. The role of IL-33 on B cell maturation and…
Abstract Number: 0780 • ACR Convergence 2024
Deep B Cell Tissue Depletion Following Anti-CD19 CART Cells Therapy
Carlo Tur¹, Markus Eckstein², Velden Joachim³, Christina Bergmann⁴, Janina Auth¹, Laura Bucci¹, Giulia Corte⁵, Melanie Hagen¹, Andreas Wirsching¹, Ricardo Grieshaber-Bouyer¹, Petra Reis¹, Nicolai Kittan¹, Jochen Wacker¹, Simon Rauber¹, Aleix Rigau⁶, Andreas Ramming¹, Maria Antonietta D'Agostino⁷, Arndt Hartmann⁸, Fabian Müller⁹, Andreas MAckensen¹⁰, Aline Bozec¹, Georg Schett¹¹ and Maria Gabriella Raimondo¹, ¹Department of Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Bayern, Germany, ²Institute of Pathology and Comprehensive Cancer Center EMN, Friedrich-Alexander- Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ³Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ⁴Department of Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ⁵Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, Deutsches Zentrum für Immuntherapie (DZI), Friedrich Alexander University Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany, Erlangen, Bayern, Germany, ⁶Friedrich-Alexander Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ⁷Division of Rheumatology, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, Università Cattolica del Sacro Cuore, Rome, Italy, ⁸Institute of Pathology and Comprehensive Cancer Center EMN, Friedrich-Alexander- Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Bayern, Germany, ⁹Department of Medicine 5 - Hematology and Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Uniklinikum Erlangen, Erlangen, Germany, ¹⁰Department of Medicine 5 - Hematology and Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Uniklinikum Erlangen, Erlangen, Bayern, Germany, ¹¹Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
Background/Purpose: CD19-targeting chimeric antigen receptor (CAR) T-cell therapy has proved potential for achieving long-term drug-free remission in patients with autoimmune diseases (AIDs). Its effectiveness likely…
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: 0811 • ACR Convergence 2024
High-Throughput Proteomic Profiling of Longitudinal Serum Samples to Predict Treatment Response in Lupus Nephritis
Benjamin Jones¹, Rufei Lu², Andrea Fava³, Peter Izmirly⁴, Jennifer Anolik⁵, Chaim Putterman⁶, David Wofsy⁷, Matthias Kretzler⁸, Celine Berthier⁹, E. Steven Woodle¹⁰, Michael Weisman¹¹, Mariko Ishimori¹², The Accelerating medicines Partnership: RA/SLE Network¹³, Betty Diamond¹⁴, Jill Buyon¹⁵, Michelle Petri¹⁶, Judith James¹³ and Joel Guthridge¹³, ¹Oklahoma State University, Oklahoma City, OK, ²University of California San Francisco, San Bruno, CA, ³Johns Hopkins University, Baltimore, MD, ⁴New York University Grossman School of Medicine, New York, NY, ⁵University of Rochester Medical Center, Rochester, NY, ⁶Albert Einstein College of Medicine, Safed, Israel, ⁷University of California San Francisco, SF, CA, ⁸University of Michigan, Ann Arbor, MI, USA, Ann Arbor, MI, ⁹University of Michigan, Ann Arbor, MI, ¹⁰University of Cincinnati College of Medicine, Cincinnati, OH, USA, Cinncinnati, OH, ¹¹Stanford University, Los Angeles, CA, ¹²Cedars-Sinai Health System, Los Angeles, CA, ¹³Oklahoma Medical Research Foundation, Oklahoma City, OK, ¹⁴The Feinstein Institutes for Medical Research, Manhasset, NY, ¹⁵NYU Grossman School of Medicine, New York, NY, ¹⁶Johns Hopkins University School of Medicine, Timonium, MD
Background/Purpose: Lupus nephritis (LN) can lead to severe morbidity and early mortality in SLE patients. While therapeutic options for LN have improved, they are not…
Abstract Number: 1679 • ACR Convergence 2024
Differential Pharmacodynamic Changes of Circulated Immune Subsets After Treatment with Abatacept or Adalimumab in Patients with ACPA+ Early RA in the AMPLIFIED Study
Nathanial Eddy¹, Jane Buckner², Paul Emery³, Michael Weinblatt⁴, Vivian Bykerk⁵, Andrew Cope⁶, Gerd Burmester⁷, Yoshiya Tanaka⁸, Gustavo Citera⁹, Peter Nash¹⁰, Quentin Dornic¹¹, Peter Schafer¹², Sheila Kelly¹³, Michael Maldonado¹¹ and Jinqi Liu¹¹, ¹Bristol Myers Squibb, Princeton, ²Benaroya Research Institute, Seattle, WA, ³University of Leeds, Leeds, United Kingdom, ⁴Brigham and Women's Hospital/ Harvard Medical School, Waban, MA, ⁵Hospital For Special Surgery, New York, NY, ⁶King's College London, London, United Kingdom, ⁷Department of Rheumatology and Clinical Immunology, Charité – Universitätsmedizin Berlin, Berlin, Germany, ⁸Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan, ⁹Instituto de Rehabilitación Psicofísica, Buenos Aires, Argentina, ¹⁰Griffith University, Brisbane, Australia, ¹¹Bristol Myers Squibb, Princeton, NJ, ¹²Bristol Myers Squibb, BELLE MEAD, NJ, ¹³Bristol Myers Squibb, Doylestown, PA
Background/Purpose: Despite considerable advances in pharmacologic approaches to RA management, a better understanding of the underlying immunopathology is still needed.1,2 A dysregulated immune system is…
Abstract Number: 0836 • ACR Convergence 2024
NF-κB Inducing Kinase Is a Therapeutic Target for Autoimmune Diseases by Orchestrating Both B Cell and T Follicular Helper Cell Responses
Jee Ho Lee¹, Manisha Mohandoss², Lichchavi Rajasinghe¹, Silvia Preite³, Katie Madore², Mark Birrell⁴, Jan Piet van Hamburg⁵, Sander Tas⁶, Matthew Perry³, Tatiana Ort¹ and Gary Sims¹, ¹Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, ²Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaitherburg, ³Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden, ⁴Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, london, United Kingdom, ⁵Amsterdam UMC, Amsterdam, Netherlands, ⁶Amsterdam UMC, locatie AMC, Amsterdam, Netherlands
Background/Purpose: T follicular helper (Tfh) cells are a specialized CD4+ T cell subset which can help B cells in the germinal center (GC) to drive…
Abstract Number: 1775 • ACR Convergence 2024
Childhood-onset Sjögren Disease Has an Altered Peripheral Blood Immune Landscape Compared to Adult-onset Disease Characterized by Activated CD4+ T-cells Which Could Drive B-cell Dysregulation
Junjie Peng, Lucia Martin-Gutierrez, George Robinson, Elizabeth Jury and Coziana Ciurtin, University College London, London, United Kingdom
Background/Purpose: Childhood-onset Sjögren Disease (cSjD) is a rare, poorly understood autoimmune rheumatic disease with onset before 18 years. Differences in clinical presentation compared to adults/lack…
Abstract Number: 0001 • ACR Convergence 2024
Type I Interferon and Anifrolumab Effects on Bone Marrow and Blood Plasma Cells in Systemic Lupus Erythematosus
Diana Alzamareh¹, Nida Pellett², Daria Krenitsky², Wesley Durrett¹, Javier Rangel-Moreno¹, Jennifer Anolik² and Jennifer Barnas¹, ¹University of Rochester, Rochester, NY, ²University of Rochester Medical Center, Rochester, NY
Background/Purpose: Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by the production of pathogenic anti-nuclear antibodies (ANA) by plasma cells (PC). Importantly, long-lived plasma…
Abstract Number: 0839 • ACR Convergence 2024
Comprehensive Single-cell Analysis Reveals Interferon Pathway Activation and Aberrant B Cell Dynamics in APS Autoimmunity
Haoyu Pan, Xiaohan Wei, Jinyi Qian, Shuyi Yu, Zhixia Yang, Zetao Ding, Chengde Yang and Hui Shi, Department of Rheumatology and lmmunology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China, Shanghai, China (People's Republic)
Background/Purpose: Antiphospholipid syndrome (APS) is a systemic autoimmune disease characterized with the presence of pathogenic antiphospholipid antibodies (aPL) by autoreactive B cells. However, it remains…
Abstract Number: 1784 • ACR Convergence 2024
T-bet Expressing B Cells as a Putative Prognostic and Therapeutic Biomarker for Human SLE
Athanasios Sachinidis¹, Maria Trachana², Anna Taparkou², George Gavriilidis³, Vasileios Vasileiou³, Sofoklis Keisaris³, Panayotis Verginis⁴, Christina Adamichou⁵, Dimitrios Boumpas⁶ and Alexandros Garyfallos², ¹School of Medicine, Aristotle University of Thessaloniki, Greece, Thessaloniki, Greece, ²Ippokrateio General Hospital Thessaloniki, Thessaloniki, Greece, ³Centre for Research and Technology Hellas, Thessaloniki, Greece, ⁴Medical School, University of Crete, Heraklion, Crete, Greece, ⁵IPPOKRATEION HOSPITAL OF THESSALONIKI, Athens, Greece, ⁶4th Department of Internal Medicine, "Attikon" University Hospital, Athens, Greece, Athens, Greece
Background/Purpose: T-bet+ B cells, known as age-associated B cells (ABCs) and/or double-negative B cells (DN), expand in various autoimmune diseases. This study aimed to clarify…
Abstract Number: 0007 • ACR Convergence 2024
Bromodomain 2 of BET Proteins Plays a Crucial Role in Follicular/peripheral Helper T Cell and Plasma Cell Differentiation
Ryota Sato¹, Mitsuhiro Akiyama², Koichi Oshita³, Yuko Kawano³, Yuki Imura³, Piruzyan Mariam⁴, Manami Kikuchi³, Mikako Murase³, Sachiko Mochiduki³, Naohiro Hashimoto³, Masayuki Watanabe³, Keiko Yoshimoto⁵, Tsutomu Takeuchi⁶, Kenji Chiba⁷ and Yuko Kaneko⁵, ¹Mitsubishi Tanabe Pharma Corporation, Brighton, MA, ²Keio University School of Medicine, Palo Alto, CA, ³Mitsubishi Tanabe Pharma Corporation, Yokohama, Japan, ⁴Mitsubishi Tanabe Pharma Corporation, Yokohama, Kanagawa, Japan, ⁵Keio University School of Medicine, Tokyo, Japan, ⁶Department of Internal Medicine, Keio University, Tokyo, Tokyo, Japan, ⁷Mitsubishi Tanabe Pharma Corporation, Tokyo, Japan
Background/Purpose: Proteins motifs bromodomain 1 (BD1) and BD2 within the BET family proteins regulate gene expression of inflammatory cytokines and lymphocyte proliferation by binding to…
Abstract Number: 0897 • ACR Convergence 2024
Dynamic eQTLs from Activated Human B Cells Suggest Cell-state Dependent Effects for GWAS Risk Variants in BLK
Yao Fu, David Murphy, Richard Pelikan, Jeniffer Kelly, Kiely Grundahl, Satish Pasula, Kandice Tessneer and Patrick Gaffney, Oklahoma Medical Research Foundation, Oklahoma City, OK
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex genetic disease in which B cells play a critical role in pathogenesis. Previous genome-wide association studies (GWAS)…
Abstract Number: 1786 • ACR Convergence 2024
Select Immune Cell Dysregulation Identifies Clinically Quiescent Patients at Risk of Flare Who Stop Mycophenolate Mofetil While Continuing Hydroxychloroquine
Christian Wright¹, Rufei Lu², Catriona Wagner³, Carla Guthridge⁴, Susan Macwana¹, Eliza Chakravarty⁴, Tammy Utset⁵, Diane Kamen⁶, Gabriel Nicolas Contreras Martin⁷, William McCune⁸, Cynthia Aranow⁹, Kenneth Kalunian¹⁰, Elena Massarotti¹¹, Megan Clowse¹², Brad Rovin¹³, S. Sam Lim¹⁴, Vikas Majithia¹⁵, Richard Looney¹⁶, Maria Dall'Era¹⁷, Doruk Erkan¹⁸, Amit Saxena¹⁹, Nancy Olsen²⁰, Kichul Ko²¹, Ellen Goldmuntz²², William Barry²³, Ashley Pinckney²⁴, ALE06 Clinical Study Team⁴, Judith James⁴ and Joel Guthridge⁴, ¹Oklahoma Medical Research Foundation, Oklahoma City, ²University of California San Francisco, San Bruno, CA, ³Oklahoma Medical Research Foundation, Santa Cruz, CA, ⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁵University of Chicago, Chicago, IL, ⁶Medical University of South Carolina, Charleston, SC, ⁷University of Miami, Key Biscayne, FL, ⁸U Michigan, Ann Arbor, MI, ⁹Feinstein Institutes for Medical Research, New York, NY, ¹⁰University of California San Diego, La Jolla, CA, ¹¹Brigham and Women's Hospital, Boston, MA, ¹²Duke University, Chapel Hill, NC, ¹³The Ohio State University, Columbus, OH, ¹⁴Emory University, Atlanta, GA, ¹⁵Mayo Clinic Florida, Jacksonville, FL, ¹⁶University of Rochester, Rochester, NY, ¹⁷UCSF, Corte Madera, CA, ¹⁸Hospital for Special Surgery, New York, NY, ¹⁹NYU School of Medicine, New York, NY, ²⁰Penn State University/Milton S Hershey, Hershey, PA, ²¹The University of Chicago, Chicago, IL, ²²NIAID/ NIH, Washington, DC, ²³Rho, Inc, Durham, NC, ²⁴Rho, St Louis Park, NC
Background/Purpose: Mycophenolate mofetil (MMF) is commonly used to treat major SLE manifestations; however, it is associated with significant toxicities. Thus, MMF withdrawal is desirable in…

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