Abstracts tagged "B-Lymphocyte"

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: 0002 • ACR Convergence 2021
Salivary Sodium Levels in the Parotid Salivary Gland of SS Patients Suggest B-cell Mediated Epithelial Sodium Channel Disruption
Sarah Pringle¹, Bas Berkhof¹, Martha S. van Ginkel², Silvia Liefers¹, Bert van der vegt², Fred Spijkervet², Hendrika Bootsma¹, Arjan Vissink¹ and Frans Kroese¹, ¹University Medical Center Groningen, Groningen, Netherlands, ²University of Groningen, University Medical Center Groningen, Groningen, Netherlands
Background/Purpose: Patients with Sjögren’s syndrome (SS) suffer from significantly reduced saliva production. Saliva is important for oral health. A careful of sodium, chloride, potassium and…
Abstract Number: 1484 • ACR Convergence 2021
B Cell Intracellular IFNβ as a Unique Cellular Marker for the Development of Lupus Nephritis
Fatima Alduraibi¹, Huma Fatima¹, Winn Chatham², Hui-Chen Hsu¹ and John Mountz¹, ¹University of Alabama Birmingham, Birmingham, AL, ²University of Alabama at Birmingham, Birmingham, AL
Background/Purpose: Our laboratory previously demonstrated a strong association of B cell intracellular interferon beta (IFNβ) with the development of anti-Smith/ribonuclear protein (Sm/RNP), anti-DNA, and lupus…
Abstract Number: 0004 • ACR Convergence 2021
Unappreciated Systemic Metabolic Functions of the Canonical B Cell Cytokines, BAFF and APRIL: Regulation of Lipolysis and Non-shivering Thermogenesis and Protection from Obesogenic Diet Induced Weight Gain
Isaac Harley¹, Calvin Chan², Paul Pfluger³, Trompette Aurelien⁴, Traci Stankiewicz⁵, Jessica Allen⁵, Maria Moreno-Fernandez⁵, Michelle Damen⁵, Jarren Oates⁵, Pablo Alarcon⁵, Jessica Doll⁶, Matthew Flick⁷, Leah Flick⁸, Juan Sanchez-Gurmaches⁹, Rajib Mukherjee⁹, Rebekah Karns¹⁰, Michael Helmrath¹¹, Thomas Inge¹², Stuart Weisberg¹³, Sunje Pamp¹⁴, David Relman¹⁵, Randy Seeley¹⁶, Matthias Tschoep¹⁷, Chris Karp¹⁸ and Senad Divanovic⁸, ¹University of Colorado Anschutz Medical Campus, Aurora, CO, ²University of Cincinnati, Cincinnati, OH, ³Technical University of Munich, Munich, Germany, ⁴Le Centre hospitalier universitaire vaudois, Lausanne, Switzerland, ⁵Cincinnati Children's Hospital Medical Center, Division of Immunobiology, Cincinnati, OH, ⁶Cincinnati Children's Hospital Medical Center, Division of Immunobiology, Cincinn, OH, ⁷Division of Experimental Hematology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ⁸Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁹Division of Endocrinology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹⁰Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹¹Pediatric General and Thoracic Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹²Department of Surgery, Children’s Hospital Colorado, Aurora, CO, ¹³Columbia University Medical Center, New York, NY, USA, New York, NY, ¹⁴Danmarks Tekniske Universitet, Lyngby, Denmark, ¹⁵Department: Medicine - Med/Infectious Diseases - Stanford University, Stanford, ¹⁶Department of Surgery, Internal Medicine and Nutritional Sciences, University of Michigan, Ann Arbor, MI, ¹⁷Division of Metabolic Diseases, Technische Universität München, Munich, Germany, ¹⁸Division of Molecular Immunology, Cincinnati Children’s Hospital Medical Center, Cincinnati
Background/Purpose: The impact of immune mediators on weight homeostasis and systemic metabolism remains underdefined. Interrogation of resistance to diet-induced obesity in mice lacking a negative…
Abstract Number: 1490 • ACR Convergence 2021
Myeloid and B Cell Transcriptional Phenotypes Reveal Race Dependent Differences in Early Autoimmunity
Aleksandra Bylinska, Samantha Slight-Webb, Kevin Thomas, Miles Smith, Susan Macwana, Nicolas Dominguez, Eliza Chakravarty, Joan Merrill, Judith James and Joel Guthridge, Oklahoma Medical Research Foundation, Oklahoma City, OK
Background/Purpose: Early immune events leading to clinical autoimmune disease are complex and the pathways involved remain incompletely defined. Anti-nuclear antibody (ANA) positivity is a feature…
Abstract Number: 0006 • ACR Convergence 2021
Metabolic Characteristics of Age-related B Cells in Lupus-prone Mice and Effects on Follicular Helper T Cells
Ivan Ramirez¹, Betty Diamond² and Sun Jung Kim³, ¹Northwell, Little Neck, NY, ²Northwell Health, Manhasset, NY, ³Feinstein Institutes for Medical Research, Manhasset, NY
Background/Purpose: Since the description of age-associated B cells (ABC), there has been a growing interest in the role of these cells in autoimmunity. Evidence suggests…
Abstract Number: 1502 • ACR Convergence 2021
Longitudinal Changes in B Cell Subsets in Patients in the Mesenchymal Stromal Cell Trial in Lupus: Analysis of the First Cohort
Diane Kamen¹, S Sam Lim², Scott Jenks³, Regina Bugrovosky³, Aisha Hill³, Chungwen Wei³, Cristina Drenkard³, Kenneth Kalunian⁴, Ummara Shah⁵, Mariko Ishimori⁶, Rosalind Ramsey-Goldman⁷, Saira Sheikh⁸, Mary Alison Mahieu⁷, Daniel Wallace⁹, Ellen Goldmuntz¹⁰ and Gary Gilkeson¹, ¹Medical University of South Carolina, Charleston, SC, ²Department of Medicine, Division of Rheumatology, Emory University School of Medicine, Atlanta, GA, ³Emory University, Atlanta, GA, ⁴UC San Diego, La Jolla, CA, ⁵University of Rochester, Rochester, NY, ⁶Cedars-Sinai Health System, Los Angeles, CA, ⁷Northwestern University, Chicago, IL, ⁸University of North Carolina, Chapel Hill, NC, ⁹Attune Health, Beverly Hills, CA, ¹⁰National Institutes of Health, Bethesda, MD
Background/Purpose: Recent advances allow expanded identification of B cell subtypes of pathogenic potential in lupus. Of particular interest are IgD- CD27- double negative (DN2) B…
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: 0292 • ACR Convergence 2020
Exhausted pSTAT5-IFNα Signaling Pathways in SLE Patients Are Correlated with Age-associated B Cells and Disease Activity
Samantha Slight-Webb¹, Miles Smith², Kevin Thomas¹, Susan Macwana¹, Holden Maecker³, Paul Utz⁴, Judith James⁵ and Joel Guthridge¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²Oklahoma Medical Research Foundation, Oklahoma City, ³Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, CA, ⁴Stanford University School of Medicine, Stanford, CA, ⁵Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation;Department of Pathology, University of Oklahoma Health Sciences Center;Department of Medicine, University of Oklahoma Health Sciences Center, Edmond, OK
Background/Purpose: Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by periods of elevated and suppressed clinical symptoms. Specific cell subsets, such as CD11c+ age-associated…
Abstract Number: 1060 • ACR Convergence 2020
B-cell-rich Inflammatory Myopathies in Adults: Striking Association with Connective Tissue Diseases
Pat Korathanakhun¹, Océane Landon-Cardinal², Valérie Leclair³, Benjamin Ellezam⁴, Alain Meyer⁵, Josiane Bourré-Tessier², Anne-Marie Mansour⁶, Sandrine Larue⁷, François Grand'Maison⁷, Rami Massie⁸, Matthieu Le Page⁹, Catherine Isabelle⁷, Nathalie Routhier⁶, Flavie Roy¹⁰, Minoru Satoh¹¹, Marvin Fritzler¹², Jean-Luc Senécal², Yves Troyanov¹³, Marie Hudson³, Jason Karamchandani¹⁴ and Erin O'Ferrall⁸, ¹Montreal Neurological Institute and Hospital, Montreal, QC, Canada, ²Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montréal, QC, Canada, ³Division of Rheumatology, Jewish General Hospital, Montréal, QC, Canada, ⁴Division of Pathology, Centre hospitalier universitaire Sainte-Justine, Montréal, QC, Canada, ⁵Service de rhumatologie et Centre de références des maladies autoimmunes rares, Hôpitaux universitaires de Strasbourg, Strasbourg, France, ⁶Hôpital du Sacré-Coeur de Montréal, Montreal, QC, Canada, ⁷Hôpital Charles-Lemoyne, Longueuil, QC, Canada, ⁸Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, Montreal, QC, Canada, ⁹Centre hospitalier de Lanaudière, Saint-Charles-Borromée, QC, Canada, ¹⁰Uiversité de Montréal, Montreal, QC, Canada, ¹¹Department of Clinical Nursing, University of Occupational and Environmental Health, Kitakyushu, Japan, ¹²Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada, ¹³Division of Rheumatology, Hôpital du Sacré-Coeur, Montréal, QC, Canada, ¹⁴Department of Pathology, Montreal Neurological Institute and Hospital, Montreal, QC, Canada
Background/Purpose: Myositis with significant B-cell infiltrates on muscle biopsy has scarcely been described in adults. Radke (2018) found B cells in adult dermatomyositis (DM) and…
Abstract Number: 0302 • ACR Convergence 2020
Longitudinal Study of Acute SLE Flare Reveals Dynamic Changes in Multiple Immune Cell Subsets
Kieran Manion¹, Dennisse Bonilla², Dafna Gladman¹, Murray Urowitz³, Zahi Touma⁴ and Joan Wither², ¹Krembil Research Institute, Toronto Western Hospital, Toronto, ON, Canada, ²University of Toronto Lupus Clinic, Centre for Prognosis Studies in Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada, ³University Health Network, University of Toronto, Toronto, ON, Canada, ⁴University of Toronto, Toronto, ON, Canada
Background/Purpose: In SLE, periods of relative quiescence are punctuated by flares in disease activity that can lead to extensive tissue damage and morbidity. Existing studies…
Abstract Number: 1227 • ACR Convergence 2020
Reduction in Peripheral CD19+ CD27- Naïve B Cells Is Associated with Clinical Remission in Patients with Rheumatoid Arthritis Receiving Combined Treatment with Methotrexate and TNF Inhibitors
Borja Hernandez-Breijo¹, Chamaida Plasencia², Victoria Navarro-Compán³, Israel Nieto-Gañán⁴, Cristina Sobrino⁵, Ana Martínez-Feito⁶, Carlota García-Hoz⁴, Paloma Lapuente-Suanzes⁴, Javier Bachiller-Corral⁷, Gema Bonilla², Cristina Pijoán-Moratalla⁷, Garbiñe Roy⁴, Mónica Vázquez⁷, Alejandro Balsa², Luisa M Villar⁴, Dora Pascual-Salcedo⁸ and Eulalia Rodríguez-Martín⁴, ¹Immuno-rheumatology Research group. IdiPAZ. La Paz University Hospital, Madrid, Spain, ²Rheumatology, La Paz University Hospital-IdiPAZ, madrid, Spain, ³Hospital Universitario La Paz IdiPaz, Madrid, Pais Vasco, Spain, ⁴Hospital Universitario Ramón y Cajal-IRYCIS, Madrid, Spain, ⁵Hospital Ramón y Cajal-IRYCIS, Madrid, Spain, ⁶Hospital Unversitario La Paz- idipaz, Madrid, Spain, ⁷Rheumatology, Hospital Universitario Ramón y Cajal, Madrid, Spain, ⁸Hospital Universitario La Paz- Idipaz, Madrid, Spain
Background/Purpose: Biological therapies, as TNF inhibitors (TNFi) are increasing remission rates in rheumatoid arthritis (RA) patients although these are still limited. This study aims to…

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