Abstracts tagged "B-Lymphocyte"

Abstract Number: 2183 • ACR Convergence 2022
mTORC2 Contributes to Murine Systemic Autoimmunity
Xian Zhou¹, Haiyu Qi¹, Meilu Li¹, Yanfeng Li¹, Xingxing Zhu², Anne Davidson³ and Hu Zeng¹, ¹Mayo Clinic, Rochester, MN, ²Mayo Clinic, Rochester, ³Feinstein Institutes for Medical Research, Manhasset, NY
Background/Purpose: The development of many systemic autoimmune diseases, including systemic lupus erythematosus, is associated with overactivation of the type I interferon (IFN) pathway, lymphopenia, and…
Abstract Number: 0506 • ACR Convergence 2022
Immunophenotypic Categorization of Systemic Immune-mediated Diseases
Shinji Izuka¹, Toshihiko Komai¹, Takahiro Itamiya¹, Mineto Ota², Saeko Yamada¹, Yasuo Nagafuchi², Hirofumi Shoda¹, Kosuke Matsuki³, Kazuhiko Yamamoto⁴, Tomohisa Okamura² and Keishi Fujio¹, ¹Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Bunkyo City, Tokyo, Japan, ²Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Department of Functional Genomics and Immunological Diseases, Graduate School of Medicine, The University of Tokyo, Bunkyo City, Tokyo, Japan, ³Research Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Japan, ⁴Laboratory for Autoimmune Diseases, Center for Integrative Medical Sciences, the Institute of Physical and Chemical Research (RIKEN), Wako, Saitama, Japan
Background/Purpose: Systemic immune-mediated diseases are heterogeneous, and the pathogenesis varies among and within each disease. Some studies tried to stratify patients with immune-mediated diseases into…
Abstract Number: 0987 • ACR Convergence 2022
A Randomized Placebo-Controlled Phase 1 Study in Healthy Adult Volunteers of the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of ALPN-303, a Potent Dual BAFF/APRIL Antagonist for the Treatment of Systemic Lupus Erythematosus and Other Autoantibody-Associated Diseases
Stacey Dillon¹, Pille Harrison², Jason Lickliter³, Kristi Manjarrez¹, Alina Smith¹, Mary Lessig¹, Lori Blanchfield¹, Russell Sanderson¹, Allison Chunyk¹, Tiffany Blair¹, Amanda Enstrom¹, Martin Wolfson¹, Mark Rixon¹, Hany Zayed⁴, Rupert Davies¹ and Stanford Peng¹, ¹Alpine Immune Sciences, Seattle, WA, ²Alpine Immune Sciences, Taunton, United Kingdom, ³Nucleus Network, Melbourne, Australia, ⁴Alpine Immune Sciences, San Francisco, CA
Background/Purpose: B cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL) are tumor necrosis factor (TNF) superfamily members that bind TACI (transmembrane activator and CAML…
Abstract Number: 0600 • ACR Convergence 2022
Correlates Between Rheumatoid Arthritis Clinical Factors and Synovial Cell Phenotypes: Data from the Accelerated Medicines Partnership
Dana Weisenfeld¹, Fan Zhang², Laura Donlin³, Anna Jonsson¹, William Apruzzese¹, Debbie Campbell⁴, Ellen Gravallese⁵, Larry Moreland⁶, Susan Goodman³, Michael Brenner⁵, Soumya Raychaudhuri¹, Andrew Filer⁷, Jennifer Anolik⁸, Vivian Bykerk³ and Katherine Liao¹, ¹Brigham and Women's Hospital, Boston, MA, ²University of Colorado, Aurora, CO, ³Hospital for Special Surgery, New York, NY, ⁴University of Rochester, Rochester, ⁵Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁶University of Colorado, Denver, CO, ⁷University of Birmingham, Birmingham, United Kingdom, ⁸University of Rochester Medical Center, Rochester, NY
Background/Purpose: Prior studies have characterized the diverse cell types in the RA synovium through a multi-center consortium incorporating RNA-seq data. Due to the novelty of…
Abstract Number: 1254 • ACR Convergence 2022
Ultra High‐Frequency Ultrasound of Labial Salivary Glands in Primary Sjögren’s Syndrome: A Promising Tool to Identify Lymphoproliferative Lesions in Unusual Sites
Giovanni Fulvio¹, Rossana Izzetti², Francesco Ferro³, Gianmaria Governato⁴, Gaetano La Rocca⁵, Silvia Fonzetti⁶, Inmaculada Concepción Navarro García⁷, Marta Mosca⁸, Valentina Donati⁹ and Chiara Baldini¹, ¹University of Pisa, Pisa, Pisa, Italy, ²Unit of Dentistry and Oral Surgery, Pisa, Toscana, Italy, ³Clinical and Experimental Medicine Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Pisa, Italy, ⁴Azienda Ospedaliera Universitaria Pisana, Pisa, Pisa, Italy, ⁵University of Pisa, Rheumatology Unit, Palermo, Palermo, Italy, ⁶Azienda Ospedaliera Universitaria Pisana, Pisa, Italy, ⁷Clinical and Experimental Medicine Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy, ⁸Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy, ⁹Pathology Unit, University of Pisa, Pisa, Italy
Background/Purpose: Major salivary gland (MSG) ultrasound (US) is a useful tool in Sjögren's syndrome (SS) diagnostic work-up. Interestingly, in a recent case series, specific US…
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: 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…

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