Abstracts tagged "B-Lymphocyte"

Abstract Number: 1546 • ACR Convergence 2024
Characteristics and Treatment Patterns of Patients with Lupus Nephritis: A Retrospective Claims Database Study in the USA
Anisha M. Patel¹, Carmen Ng¹, Lisa Lindsay¹, Zhiyu Xia², William F. Pendergraft III³ and Maria Dall'Era⁴, ¹Genentech, Inc., South San Francisco, ²Genentech, Inc., Sou, ³Genentech, Inc., Chapel Hill, NC, ⁴UCSF, Corte Madera, CA
Background/Purpose: Accounting for the integration of new immunosuppressive treatment options (belimumab and voclosporin) since 2021, we aimed to describe real-world treatment patterns in patients with…
Abstract Number: 2427 • ACR Convergence 2024
Anti-CD19 Chimeric Antigen Receptor T Cell Therapy Induces Multicompartmental B Cell Depletion in Peripheral Blood, Bone Marrow and Lymph Nodes of Systemic Lupus Erythematosus
Ioanna Minopoulou¹, Olaf Penack², Fredrik Albach¹, Artur Wilhelm³, Arnd Kleyer⁴, Dominic Borie⁵, Vincent Casteleyn¹, Robert Biesen¹, Philipp Enghard⁶, Thomas Dörner⁷, Norman Drzeniek⁸, Jan Zernicke¹, Tobias Alexander³, Kamran Movassaghi², Marie Luise Hütter-Krönke⁹, Eva Schrezenmeier⁶, Adrian Schreiber¹⁰, udo schneider¹, Lars Bullinger¹¹, Gerhard Krönke¹² and David Simon¹³, ¹Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany, Berlin, Germany, ²Department of Hematology, Oncology and Tumor Immunology, Charité University Medicine Berlin, Campus Virchow Klinikum, Berlin, Germany, Berlin, Germany, ³Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Deutsches Rheuma-Forschungszentrum Berlin, Berlin, Germany, Berlin, Germany, ⁴Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Department of Internal Medicine 3, University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany/ Deutsches Zentrum für Immuntherapie (DZI), University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany, Berlin, Germany, ⁵Kyverna Therapeutics, Inc., Emeryville, CA, ⁶Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin, Berlin, Germany/ Deutsches Rheuma-Forschungszentrum Berlin, Berlin, Germany, Berlin, Germany, ⁷Department of Medicine, Rheumatology and Clinical Immunology,Charite Universitätsmedizin Berlin, Germany and DRFZ, Berlin, Berlin, Germany, ⁸Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Berlin Institute of Health at Charité-Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany/ Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Berlin-Brandenburg School for Regenerative Therapies (BSRT), Berlin, Germany/Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Immunology, Berlin, Germany, Berlin, Germany, ⁹Department of Hematology, Oncology and Cancer Immunology, Charité University Medicine Berlin, Campus Steglitz, Berlin, Germany, Berlin, Germany, ¹⁰Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin, Berlin, Germany, Berlin, Germany, ¹¹Department of Hematology, Oncology and Tumor Immunology, Charité University Medicine Berlin, Campus Virchow Klinikum, Berlin, Germany/ Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany, Berlin, Germany, ¹²Rheumatology, Charité, Berlin, Germany, ¹³Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Department of Internal Medicine 3, University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany/Deutsches Zentrum für Immuntherapie (DZI), University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany, Berlin, Germany
Background/Purpose: Anti-CD19 chimeric antigen receptor (CAR) T cells have emerged as a promising therapeutic option for treatment-refractory patients with B cell-mediated diseases such as systemic…
Abstract Number: 0327 • ACR Convergence 2024
Clinical and Immunological Risk Factors Associated with Fybromialgia in Patients with Idiopathic Inflammatory Myopathies
Samuel Govea-Peláez¹, Beatriz Alcalá-Carmona², Jennifer Balderas Miranda³, Yatzil Reyna-Juárez², María José Ostos-prado², Nancy R Mejía-Domínguez², Guillermo Juarez-Vega⁴, Jiram Torres Ruiz⁵ and Diana Gomez-martin⁶, ¹INCMNSZ, Mexico City, Mexico, ²Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Distrito Federal, Mexico, ³Universidad Nacional Autónoma de México, Ciudad de México, Mexico, ⁴Red de Apoyo a la Investigación, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán and Universidad Nacional Autónoma de México, Mexico City, Distrito Federal, Mexico, ⁵INCMNSZ, Mexico, Federal District, Mexico, ⁶INCMNSZ, Mexico City, Federal District, Mexico
Background/Purpose: Patients with idiopathic inflammatory myopathies (IIM) have reported chronic pain despite having normal serum muscular enzymes, physician global assessment (PhGA) and MMT8 scores, thus…
Abstract Number: 1636 • ACR Convergence 2024
Age-associated B Cells Contribute to Inflammation of Takayasu’s Arteritis in an Antibody-secreting Cell Differentiation Independent Manner
Chenglong Fang¹, Xiaochuan Sun², Shangyi Jin², Lihong du², Jing Li², Xiaofeng Zeng³, Yuexin Chen⁴, Mengtao Li⁵ and Xinping Tian³, ¹Department of Rheumatology, Second Affiliated Hospital of Fujian Medical University, Quanzhou, China (People's Republic), ²Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, China, ³Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China, ⁴Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing, China, ⁵Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China 2National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, Beijing, China
Background/Purpose: Although Takayasu’s arteritis (TAK) is not a prototypical autoantibody-mediated autoimmune disease, several lines of evidence suggested the pathogenic potential of B cells. However, limited…
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: 0346 • ACR Convergence 2024
Clonally Expanded and Total B Cells in Patients with Idiopathic Inflammatory Myopathies Show Skewed B Cell Subset Distribution and Reduced Somatic Hypermutation Relative to Healthy Controls
Amelia Sawyers¹, Leslie Crofford², Erin Wilfong³ and Rachel Bonami³, ¹Vanderbilt University School of Medicine, Nashville, TN, ²Vanderbilt University Medical Center, Melbourne, AR, ³Vanderbilt University Medical Center, Nashville, TN
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a collection of rare, systemic rheumatic diseases. A role for B cells in IIM is indicated by the success…
Abstract Number: 1648 • ACR Convergence 2024
In Vitro Expansion of ACPA-positive B Cells from Rheumatoid Arthritis Patients and Effect of Small Molecule NF-κB Inhibitors on Differentiation and Survival of (Autoreactive) Memory B Cells into Plasma Cells
Giulia Frazzei¹, Ana Merino Vico², Jan Piet van Hamburg², Ronald Van Vollenhoven³ and Sander Tas⁴, ¹Amsterdam University Medical Center, location AMC, Amsterdam, Netherlands, ²Amsterdam UMC, Amsterdam, Netherlands, ³Department of Rheumatology and Clinical Immunology, Amsterdam University Medical Centers, Amsterdam, Netherlands, ⁴Amsterdam UMC, locatie AMC, Amsterdam, Netherlands
Background/Purpose: Anti-citrullinated protein antibodies (ACPA) play a role in rheumatoid arthritis (RA) pathogenesis and are associated with disease severity. Detailed analysis of ACPApos B cells…
Abstract Number: 2498 • ACR Convergence 2024
The Methylome Profile of B-cells as a Biomarker of Nephritis in IgA Vasculitis
Veronica Pulito-Cueto¹, Joao Carlos Batista-Liz¹, Laura Carmen Terron², Iván Fernández Rengel³, María Sebastián Mora-Gil⁴, María Teresa Leonardo⁵, Ana Peñalba⁵, Luis Martín-Penagos⁶, Lara Belmar-Vega⁷, Cristina Gomez-Fernandez⁸, Ligia Gabrie-Rodriguez⁹, Rafael Gálvez Sánchez⁹, Luis Caminal-Montero¹⁰, Ana Turrion Nieves¹¹, Patricia Quiroga Colina¹², Esther Vicente-rabaneda¹³, Belén Sevilla-Pérez¹⁴, José Luis Callejas¹⁵, Eduardo Andrés-León², Javier Martin¹⁶, Ana María Marquez¹⁷, Santos Castañeda¹³, Ricardo Blanco-Alonso¹⁸ and Raquel Lopez-mejias¹, ¹IDIVAL, Santander, Spain, ²Unidad de Bioinformática, Instituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, Granada, Spain, ³Bioinformatics Unit, Institute of Parasitology and Biomedicine López-Neyra (IPBLN), CSIC, GENYO, Cen, Granada, Spain, ⁴Immunopathology Group, IDIVAL, Santander, Spain, ⁵Division of Pediatrics, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁶Immunopathology Group, IDIVAL. Division of Nephrology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁷Immunopathology Group, IDIVAL. Division of Nephrology, Hospital Universitario Marqués de Valdecilla, Santander, ⁸Division of Dermatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁹Immunopathology Group, IDIVAL. Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ¹⁰Internal Medicine Department, Hospital Universitario Central de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain, ¹¹Rheumatology Department, Hospital Universitario Virgen de la Vega, Salamanca, Spain, ¹²Division of Rheumatology, Hospital Universitario de La Princesa, Madrid, Spain, ¹³Hospital Universitario de La Princesa, Madrid, Spain, ¹⁴Division of Pediatrics, Hospital Universitario San Cecilio, Granada, Spain, ¹⁵Systemic Autoimmune Diseases Unit, Hospital Clinico San Cecilio, Instituto de Investigación Biosanitaria de Granada ibs.GRANADA, Granada, Spain, ¹⁶Instituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, PTS Granada, Spain, Granada, Spain, ¹⁷Instituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, PTS Granada, Granada, Spain, ¹⁸Division of Rheumatology, Hospital Universitario Marqués de Valdecilla. IDIVAL, Immunopathology group, Santander, Spain
Background/Purpose: Nephritis is the main cause of long-term morbidity and mortality in patients with Immunoglobulin-A vasculitis (IgAV) [1, 2]. Unfortunately, sensitive, specific, and non-invasive biomarkers…
Abstract Number: 0424 • ACR Convergence 2024
The Clinical Utility of Serum BAFF Levels in Pregnant Patients with SLE
Catherine Sims¹, Amanda Eudy², Samir Soneji³, Kateena Addae-Konadu³, Jennifer Gilner³, Andra James³, Jerome Federspiel⁴, Eugene Kovalik³, Anika Lucas⁴, Laura Neil⁵, Amanda Snyderman³ and Megan Clowse⁶, ¹Duke University, Knightdale, NC, ²Duke University, Raleigh, NC, ³Duke University School of Medicine, Durham, ⁴Duke University School of Medicine, Durham, NC, ⁵Duke University, Durham, ⁶Duke University, Chapel Hill, NC
Background/Purpose: The B cell Activating Factor (BAFF) signaling pathway plays an important role in the selection, maturation, and survival of B cells; it consequently contributes…
Abstract Number: 1649 • ACR Convergence 2024
B Cell Subset Contribution to Autoantibodies in Lupus
Kristina Ottens¹, Jalyn Schneider¹ and Anne Satterthwaite², ¹UT Southwestern Medical Center, Dallas, ²UT Southwestern Medical Center, Dallas, TX
Background/Purpose: Systemic lupus erythematous is characterized by the production of pathogenic autoantibodies that drive inflammation and tissue damage. Defining the B cell subsets that give…
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…

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