Abstracts tagged "B-Lymphocyte"

Abstract Number: 1836 • ACR Convergence 2025
Emerging Role of B Cell Subtype-Specific Intracytoplasmic Toll-Like Receptor Expression and Serum Eotaxin as Biomarkers in Lupus Nephritis
Jennifer Tiaré Balderas Miranda¹, Yatzil Reyna Juárez², Beatriz Alcalá-Carmona³, Nancy R Mejía Domínguez⁴, María José Ostos Prado³, José Luis Maravillas-Montero⁵, Fabiola Cassiano-Quezada⁶, Guillermo Juárez Vega⁴, karina santana⁷, Jiram Torres Ruiz⁸ and Diana Gómez-Martín⁹, ¹Universidad Nacional Autónoma de México, Coyoacán, Federal District, Mexico, ²Instituto Politècnico Nacional, Tultitlán de Mariano Escobedo, Mexico State, Mexico, ³Instituto Nacional De Ciencias Médicas Y Nutrición Salvador Zubirán, Mexico City, Distrito Federal, Mexico, ⁴Universidad Nacional Autónoma de México, Mexico City, Distrito Federal, Mexico, ⁵Red de Apoyo a la Investigación, Universidad Nacional Autónoma de México, Tlalpan, Distrito Federal, Mexico, ⁶Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico, ⁷INCMNSZ, Ciudad de México, Federal District, Mexico, ⁸INCMNSZ, Mexico, Federal District, Mexico, ⁹INCMNSZ, Mexico city, Federal District, Mexico
Background/Purpose: B cells play an essential role in lupus nephritis (LN) pathogenesis. However, abnormalities in specific subtypes like age-associated B cells (ABCs) and double negative…
Abstract Number: 0934 • ACR Convergence 2025
The Use Of Preclinical Models To Understand Drivers Of Lupus Pathogenesis
Arielle Glatman Zaretsky¹, Carley Tasker¹, Pablo Abreu¹, Ciara Torres², Li-Hong Ben¹, Scott MacDonnell¹, Andre Limnander¹ and Jamie Orengo¹, ¹Regeneron, Tarrytown, NY, ²Regeneron, Tarrytown
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a chronic, multisystem autoimmune disease with a prevalence of 1.4-15.13/100,000 adults globally. SLE is highly heterogenous and can involve…
Abstract Number: 1773 • ACR Convergence 2025
Redefining disease activity assessment in IgG4-Related Disease: The role of classical and novel biomarkers
Marta López¹, rafeal Benito-Melero², Laura Martinez-Martinez³, Hye Sang-Park⁴, sara Calleja³, Helena Codes Mendez⁵, Mar Concepción Martín³, Berta Magallares³, Ivan Castellví⁶, Ana Laiz⁵, Cesar Diaz³ and Hector Corominas⁷, ¹Complex Hospitalari Universitari Moisés Broggi, Barcelona, Spain, ²MD, barcelona, Spain, ³Hospital Santa Creu i Sant Pau, Barcelona, Spain, ⁴Hospital Santa Creu i Sant Pau, Barcelona, Catalonia, Spain, ⁵Sant Pau Hospital, Barcelona, Spain, ⁶Hospital de la Santa Creu i Sant Pau, Barcelona, Spain, barcelona, Spain, ⁷Hospital de Sant Pau, Barcelona, Spain
Background/Purpose: IgG4-related disease (IgG4-RD) is a systemic fibroinflammatory disorder characterized by elevated serum IgG4 levels and tissue infiltration by IgG4-positive plasma cells. Despite advances in…
Abstract Number: 0914 • ACR Convergence 2025
Preclinical Expansion of Autoreactive Naive B cells Drives RA onset in ACPA+ individuals
Xiaohao Wu¹, Mengrui Zhang², Orr Sharpe³, V. Michael Holers⁴, Jane Buckner⁵, Gary Firestein⁵, Eddie James⁶, Kevin Deane⁷ and William H. Robinson⁸, ¹Stanford Uniersity, Stanford, ²Stanford University, Stanford, CA, ³Stanford University, Stanford, ⁴University of Colorado Anschutz Medical Campus, Aurora, ⁵Benaroya Research Institute, Seattle, ⁶Benaroya Research Institute, Benaroya Research Institute, ⁷University of Colorado Denver Anschutz Medical Campus, Aurora, CO, ⁸Stanford University, Palo Alto, CA
Background/Purpose: The cellular and molecular mechanisms underlying the progression from anti-citrullinated protein antibody (ACPA) positivity to clinical rheumatoid arthritis (RA) remain poorly understood. Defining these…
Abstract Number: 1766 • ACR Convergence 2025
Clinical Impact of Incomplete B-cell Depletion in ANCA-Associated Vasculitis Patients Receiving Maintenance Rituximab Therapy: a Retrospective Study
caterina ricordi¹, Maxime Beydon², Johanne Liberatore³, Pascal Cohen⁴, bertrand Dunogue⁵, Camille Mettler⁶, Benjamin Torreau⁷, Luc Mouthon⁵, Xavier Puéchal⁸ and Benjamin Terrier⁹, ¹Unit of Rheumatology, Azienda USL - IRCCS di Reggio Emilia, and University of Modena and Reggio Emilia, Reggio Emilia, Italy, ²Sorbonne University, INSERM, Institut Pierre Louis of Epidemiology and Public Health, Equipe PEPITES, Pitié Salpêtrière Hospital, Service of Public Health, Centre of Pharmacoepidemiology (Cephepi), Paris, France, ³Department of Internal Medicine, Centre Hospitalier d’Angouleme, Angouleme, France, ⁴Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, Paris, France, ⁵Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Cochin University Hospital, Université Paris Cité, AP-HP, Paris, France, ⁶Department of Internal Medicine, Hôpital Bichat - Claude-Bernard, Paris, France, ⁷Internal Medicine and Immunology, CHU Tours, Tours, France, ⁸Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, and Université Paris Cité, Paris ( ⁷⁵⁰¹⁴ ), Ile-de-France, France, ⁹Cochin Hospital, Paris, France
Background/Purpose: Rituximab (RTX) is the standard of care for both induction and maintenance in ANCA-associated vasculitides (AAVs). While CD19 B-cell monitoring is used to evaluate…
Abstract Number: 0912 • ACR Convergence 2025
CD11c⁺CD21⁻ Autoimmune-Associated B Cells Derived from Double-Negative IgD⁻CD27⁻ Subsets Exhibit Enhanced IFNLR1 Expression in Systemic Lupus Erythematosus
Roukaya Yaakoub, Diana Alzamareh, Alexander Bae William and Jennifer Barnas, university of rochester, rochester, NY
Background/Purpose: Autoimmune-associated B cells (ABCs) are increasingly recognized for their role in the pathogenesis of systemic lupus erythematosus (SLE), yet their developmental origins and specific…
Abstract Number: 1723 • ACR Convergence 2025
Impaired Maintenance of X-Chromosome Inactivation in B Cells, But Not T Cells, Exacerbates Interferon-Driven Systemic Autoimmunity
Nikhil Jiwrajka¹, Claudia Lovell¹, Zowie Searcy¹, Katherine Forsyth¹, Emma Welter¹, Natalie Toothacre², Nuriban Valero-Pacheco¹, Katherine Premo¹ and Montserrat Anguera¹, ¹University of Pennsylvania, Philadelphia, PA, ²University of Pennsylvania, Philadelphia
Background/Purpose: Many systemic autoimmune diseases associated with chronic type 1 interferon (IFN) signaling, including SLE, SjD, and SSc, preferentially afflict females. The biological basis of…
Abstract Number: 0909 • ACR Convergence 2025
Loss of MicroRNA29 expression in B cells and skin microbiota synergize to promote atopic dermatitis in mice.
Marcus Hines¹, Timothy Borbet² and Sergei Koralov², ¹New York University Grossman School of Medicine, New York, NY, ²NYU Langone Medical Center, New York
Background/Purpose: The microRNA(miR)29 family is encoded by two separate loci, the miR29ab1 and miR29b2c alleles. We have previously shown that the microRNA(miR)29 family regulates the…
Abstract Number: 1697 • ACR Convergence 2025
Dynamic Effects of T cell Engager Therapy on B and T cells in Autoimmune Disease.
Laura Bucci¹, Tobias Rothe², Ann-Kathrin Goetz³, Kirill Anoshkin¹, Danae-Mona Nöthling¹, Melanie Hagen¹, Sebastian Böltz¹, Andreas Wirsching¹, Georg Schett⁴ and Ricardo Grieshaber-Bouyer⁵, ¹Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ²Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlagen, Germany, ³Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, ⁴Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany, Erlangen, Germany, ⁵University Hospital Erlangen, Erlangen, Germany
Background/Purpose: Treatment of autoimmune disease with T cell engagers (TCEs) leads to profound peripheral B cell depletion, followed by their reconstitution. However, the dynamics of…
Abstract Number: 0897 • ACR Convergence 2025
APECED Disease Reorganizes The B Cell Compartment Toward Alternatively Activated Subsets
william Galbavy, Hyunjin Kim, Brian Klotz, Marine Malbec, Carley Tasker, Eva Conde, Andrea Vecchione, Seblewongel Asrat, Benjamin Daniel, Weikeat Lim, Andre Limnander and Jamie Orengo, Regeneron, Tarrytown, NY
Background/Purpose: Autoimmune PolyEndocrinopathy Candidiasis Ectodermal Dystrophy (APECED) is a rare syndrome of multi-organ autoimmunity driven by the presence of self-reactive T cells and autoantibodies caused…
Abstract Number: 1696 • ACR Convergence 2025
A multi-omics resource of B cell activation reveals genetic mechanisms for autoimmune diseases
Vitor Aguiar¹, Marcella Franco¹, Nada Abdel Aziz¹, Daniela Fernandez-Salinas², Marcos Chinas¹, Mariasilvia Colantuoni², Qian Xiao¹, Nicolaj Hackert¹, Yifei Liao³, Rodrigo Cervantes-Diaz¹, Marc Todd¹, Brian Wauford¹, Alex Wactor¹, Vaishali Prahalad¹, Raquel Laza-Briviesca¹, Roxane Darbousset¹, Qiang Wang¹, Scott Jenks⁴, Kevin Cashman⁴, Esther Zumaquero⁴, Zhu Zhu¹, Junning Case³, Paloma Cejas⁵, Miguel Munoz-Gomez⁵, Hannah Ainsworth⁶, Miranda Marion⁷, Mehdi Benamar¹, Pui Lee⁸, Lauren Henderson⁹, Margaret Chang², Kevin Wei¹⁰, Henry Long⁵, Carl Langefeld¹¹, Benjamin Gewurz³, Ignacio Sanz⁴, Jeffrey Sparks¹², Esra Meidan¹³, Peter Nigrovic² and Maria Gutierrez-Arcelus², ¹Boston Children's Hospital, Boston, ²Boston Children's Hospital, Boston, MA, ³Brigham and Women's Hospital, Boston, ⁴Emory University, Atlanta, ⁵Dana Farber Cancer Institute, Boston, ⁶Wake Forest University, Winston-Salem, NC, ⁷Wake Forest, Winston-Salem, ⁸Boston Children's Hospital, Newton, MA, ⁹Boston Children's Hospital, Watertown, MA, ¹⁰Brigham and Women's Hospital at Harvard Medical School, Boston, MA, ¹¹Wake Forest University School of Medicine, Winston Salem, NC, ¹²Brigham and Women's Hospital, Boston, MA, ¹³Boston Children's Hospital, Somerville, MA
Background/Purpose: Most genetic variants that confer risk of complex autoimmune diseases affect gene regulation in specific cell types. Their target genes and focus cell types…
Abstract Number: 0894 • ACR Convergence 2025
Altered B cell subpopulations in Giant Cell Arteritis
Maria-Eugenia Miranda-Carus¹, Beatriz Nieto-Carvalhal², Irene Monjo Henry¹, Sara García-Carazo³ and Eugenio de Miguel¹, ¹Hospital Universitario La Paz, Madrid, Spain, ²Hospital Universitario La Paz, Mdrid, ³Hospital La Paz, Madrid
Background/Purpose: Giant cell arteritis (GCA), a large-vessel granulomatous vasculitis, has been considered as a T cell-dependent condition. Interestingly, tertiary lymphoid structures, B cell and plasma…
Abstract Number: 1695 • ACR Convergence 2025
The B Cell Compartment Exhibits a Pro-Inflammatory Skewing During Progression to Rheumatoid Arthritis
Ziyuan He¹, Marla Glass¹, Mark Gillespie¹, Elisabeth Dornisch¹, Pravina Venkatesan², Troy Torgerson³, Kevin Deane⁴, Gary Firestein⁵, Adam Savage¹, Xiaojun Li¹, V. Michael Holers⁶, Fan Zhang⁷, David Boyle⁸, Christy Bennett¹, Kristine Kuhn⁹, Kristen Demoruelle¹⁰, Peter Skene¹¹ and Ananda Goldrath¹¹, ¹Allen Institute for Immunology, Seattle, WA, ²Allen Insitute, Seattle, WA, ³Allen Institute for Immunology, Enumclaw, WA, ⁴University of Colorado Denver Anschutz Medical Campus, Aurora, CO, ⁵University of California, San Diego, San Diego, CA, ⁶University of Colorado, Denver, CO, ⁷The University of Colorado, Aurora, CO, ⁸UCSD, La Jolla, CA, ⁹²⁰²² - ²⁰²³ / Adult/ University of Colorado, Aurora, CO, ¹⁰University of Colorado Anschutz Medical Campus, Golden, CO, ¹¹Allen Institute for Immunology, Seattle
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease characterized by joint inflammation and bone destruction. RA is preceded by a subclinical phase defined by elevated…
Abstract Number: 0782 • ACR Convergence 2025
Expansion of T-bet⁺ Age-Associated B Cells Is Associated with Clinical Complications in Still’s Disease
Krisztian Csomos¹, Boglarka Ujhazi¹, Mariana Correia Marques², Emily Rosenbaum¹ and Michael Ombrello³, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), NIH, Bethesda, MD, ²Translational Genetics and Genomics Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ³National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), North Bethesda, MD
Background/Purpose: Still’s disease is a rare and severe autoinflammatory disorder characterized by daily spiking fevers, arthritis, an evanescent rash, and prominent systemic features, including lymphadenopathy,…
Abstract Number: 1694 • ACR Convergence 2025
Obesity Exacerbates Autoimmunity by Dysregulating B Cell Behavior
Munir Akkaya, Sohret Gokcek, Billur Akkaya and Wael Jarjour, The Ohio State University, Columbus, OH
Background/Purpose: Obesity is a major public health concern in the United States, affecting over 100 million individuals. While its detrimental effects on multiple organ systems…

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