Abstracts tagged "B cells"

Abstract Number: 25 • 2018 ACR/ARHP Annual Meeting
Circulating CD24hiCD38hi Regulatory B-Cells Influence Th17-Cell Responses in Patients with Granulomatosis with Polyangiitis
Anouk von Borstel¹, Lucas L. Lintermans², P Heeringa³, Abraham Rutgers², Coen A. Stegeman¹, Jan-Stephan F. Sanders¹ and Wayel H. Abdulahad², ¹Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands, ²Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands, ³Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
Background/Purpose: To investigate whether there is a direct relation between expanded proportions of Th17-effector memory (ThEM17) cells and diminished proportions of regulatory B-cells (Bregs) in…
Abstract Number: 1095 • 2018 ACR/ARHP Annual Meeting
IFN Gene Expression Correlates with Frequency of Circulating Switched Memory B-Cells in Patients with Incomplete Systemic Lupus Erythematosus
Wietske Lambers¹, Geert Lanting¹, Wayel H. Abdulahad², Hendrika Bootsma², Johanna Westra² and Karina de Leeuw³, ¹Rheumatology/Clinical Immunology, University Medical Center Groningen, Groningen, Netherlands, ²Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands, ³Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, Netherlands
Background/Purpose: Incomplete systemic lupus erythematosus (iSLE) includes patients with typical features of SLE, who do not meet classification criteria. Still, up to 50% will develop…
Abstract Number: 2885 • 2018 ACR/ARHP Annual Meeting
Expansion of Activated PD-1+ ICOS+ T Follicular and Peripheral Helper Cells in Primary Sjögren’s Syndrome Associates with Abnormalities in B Cell Compartment
Nida Meednu¹, Jennifer Albrecht², Madhu Ramaswamy³, Jeffrey Riggs⁴, Alex Rosenberg⁵, Jamie Biear⁶, Ralf G. Thiele⁷, Andreea Coca², Gianluca Carlesso³ and Jennifer Anolik², ¹Medicine- Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, ²University of Rochester Medical Center, Rochester, NY, ³MedImmune LLC, Gaithersburg, MD, ⁴Respiratory, Inflammation and Autoimmunity (RIA), MedImmune LLC, Gaithersburg, MD, ⁵University of Alabama at Birmingham, Birmingham, AL, ⁶Rheumatology, University of Rochester Medical Center, Rochester, NY, ⁷Division of Rheumatology, University of Rochester Medical Center, Rochester, NY
Background/Purpose: Primary Sjögren’s syndrome (pSS) is a systemic autoimmune disease characterized by immune cell infiltration in the salivary glands resulting in ocular and oral dryness.…
Abstract Number: 1 • 2018 ACR/ARHP Annual Meeting
Profiling of B-Cell Related Factors and Its Decoy Receptors in Rheumatoid Arthritis: Potential Clues for Patient Stratification
Javier Rodríguez-Carrio^1,2, Mercedes Alperi-López³, Patricia López¹, Francisco Javier Ballina-García⁴ and Ana Suárez¹, ¹Area of Immunology, Department of Functional Biology, University of Oviedo, Oviedo, Spain, ²Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain, ³Department of Rheumatology, Hospital Universitario Central de Asturias, Asturias, Spain, ⁴Department of Rheumatology, Hospital Universitario Central de Asturias, Oviedo, Spain
Background/Purpose: B-cell over-activation plays a key role in the pathogenesis of rheumatoid arthritis (RA), thus being recognized as a therapeutic target. However, the activation of…
Abstract Number: 26 • 2018 ACR/ARHP Annual Meeting
Hints for Catecholamine-Driven Autocrine Mechanisms to Regulate Regulatory B Cells
Nadine Honke¹, Torsten Lowin², Birgit Opgenoorth¹, Matthias Schneider¹, Georg Pongratz¹ and Katharina Krebber¹, ¹Rheumatology Policlinic & Hiller Research Unit, Medical Faculty, University Hospital, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany, ²Department and Hiller Research Center for Rheumatology, University Hospital Duesseldorf, Duesseldorf, Germany
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease affecting 1% of the worldwide population and characterized by synovial hypertrophy and chronic joint inflammation. In recent…
Abstract Number: 1582 • 2018 ACR/ARHP Annual Meeting
Clinical Correlations and Expression Pattern of the Autoimmunity Susceptibility Factor Diora-1 in Primary Sjögren’s Syndrome
Lauro Meneghel¹, Lara Aqrawi^1,2,3, Lara Mentlein¹, Albin Björk¹, Gudny Ella Thorlacius¹, Margarita Ivanchenko¹, Jorge Ramírez¹, Kathrine Skarstein^2,4, Marika Kvarnström¹, Susanna Brauner¹, Alexander Espinosa¹ and Marie Wahren-Herlenius¹, ¹Unit of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, Stockholm, Sweden, ²The Gade Laboratory for Pathology, Department of Clinical Medicine, University of Bergen, Bergen, Norway, Bergen, Norway, ³Department of Oral Surgery and Oral Medicine, Institute of Clinical Odontology, University of Oslo, Oslo, Norway, Oslo, Norway, ⁴Department of Pathology, Haukeland University Hospital, Bergen, Bergen, Norway
Background/Purpose: Genome-wide association studies of multiple autoimmune diseases, including primary Sjögren’s syndrome (pSS), systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) have revealed an association…
Abstract Number: 2946 • 2018 ACR/ARHP Annual Meeting
T Peripheral Helper Cells Are Expanded in the Circulation of Active SLE Patients and Correlate with CD21low B Cells
Deepak Rao¹, Alexandra Bocharnikov², Chamith Fonseka³, Joshua Keegan², Betty Diamond⁴, Jennifer Anolik⁵, Peter Nigrovic¹, Soumya Raychaudhuri^3,6, James A. Lederer⁷ and Michael Brenner⁸, ¹Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, MA, ²Brigham and Women's Hospital, Boston, MA, ³Divisions of Genetics and Rheumatology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁴Autoimmune Musculoskeletal and Hematopoietic Diseases, The Feinstein Institute for Medical Research, Manhasset, NY, ⁵Medicine- Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, ⁶Program in Medical and Population Genetics, Broad Institute of Massachusetts Technical Institute, Harvard University, Cambridge, MA, ⁷Department of Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁸Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Pathologic T cell-B cell interactions and production of autoantibodies are hallmark features of SLE. T follicular helper (Tfh) cells are generally considered the principal…
Abstract Number: 3 • 2018 ACR/ARHP Annual Meeting
Interferon-Alpha Disrupts DNA-Specific B Cell Tolerance in 3H9 Mice
Dario Ferri¹, Yuriy Baglaenko², Ariana Karanxha¹, Kieran Manion¹, Carolina Grajales¹ and Joan E. Wither¹, ¹Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada, ²Department of Biomedical Informatics, Brigham Women's Hospital, Harvard Medical School, Boston, MA
Background/Purpose: A central mediator of Systemic Lupus Erythematosus (SLE) pathogenesis is interferon-alpha (IFNα), which is elevated in the serum of SLE patients. IFNα has been…
Abstract Number: 27 • 2018 ACR/ARHP Annual Meeting
Top-Down Proteomics Coupled with Antibody Sequencing from Single B Cells Reveals a Monoclonal Anti-Sm Clone Present in the Serum of an SLE Patient over Three Years
Zhe Wang¹, Jennifer Muther², Judith A. James³, Si Wu¹ and Kenneth Smith², ¹Chemistry and Biochemistry, University of Oklahoma, Norman, OK, ²Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, ³University of Oklahoma Health Sciences Center, Oklahoma City, OK
Background/Purpose: Proteomics is becoming an increasingly powerful tool to study autoantibodies. Current bottom-up approaches are yielding a plethora of knowledge about public clonotypes and clonal…
Abstract Number: 1895 • 2018 ACR/ARHP Annual Meeting
Marked Immune Cell Subset Changes in Refractory Lupus Patients in a Phase I Trial of Allogenic Mesenchymal Stem Cells
Caroline Wallace Fugle¹, Chungwen Wei², Ignacio Sanz², Zihai Li¹, Chrystal Paulos¹, Megan Wyatt¹, Diane L. Kamen³ and Gary S. Gilkeson⁴, ¹MUSC, Charleston, SC, ²Emory University School of Medicine, Atlanta, GA, ³Medicine/Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, ⁴Department of Medicine, Medical University of South Carolina, Charleston, SC
Background/Purpose: Reports of positive effects of allogenic mesenchymal stem cells (MSCs) in treating refractory lupus, from a single center in China, led us to investigate…
Abstract Number: 6 • 2018 ACR/ARHP Annual Meeting
Ro52/Trim21 Influences Follicular B Cell Homeostasis and Immunoglobulin Production
Margarita Ivanchenko¹, Susanna Brauner², Gudny Ella Thorlacius¹, Aurélie Ambrosi¹ and Marie Wahren-Herlenius¹, ¹Unit of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, Stockholm, Sweden, ²Neuroimmunology Unit, Department of Clinical Neurosciences, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden, Solna, Sweden
Background/Purpose: Systemic rheumatic diseases are characterized by abnormal B cell activation with autoantibody production and hypergammaglobulinemia. The autoantigen Ro52/SSA, also denoted TRIM21, is a major…
Abstract Number: 29 • 2018 ACR/ARHP Annual Meeting
CD70-Mediated CD27 Downregulation Contributed to Regulatory B10 Cell Impairment in Rheumatoid Arthritis
Lianjie Shi¹, Fanlei Hu², Rong Mu³ and Zhan-Guo Li⁴, ¹Peking University International Hospital, Beijing, China, ²Peking University People's Hospital, Beijing, China, ³Peking University People‘s Hospital, Beijing, China, ⁴Peking University People’s Hospital, Beijing, China
Background/Purpose: Impaired function of regulatory B10 cells has been shown in autoimmune diseases. However, the underlying mechanism is still obscure. In the present study, we…
Abstract Number: 2024 • 2018 ACR/ARHP Annual Meeting
Comparison of B and T Cell Subsets, Cytokine Expression and Synovial Pathology in Down’s Arthritis (DA) and Juvenile Idiopathic Arthritis (JIA)
Charlene Foley¹, Achilleas Floudas², Mary Canavan², Monika Biniecka², Emma-Jane MacDermott³, Orla G Killeen³, Ronan Mullan⁴ and Ursula Fearon⁵, ¹Our Lady's Children's Hospital Crumlin, National Centre for Paediatric Rheumatology, Dublin, Ireland, ²Trinity Biomedical Sciences Institute, Dublin, Ireland, ³National Centre for Paediatric Rheumatology, Dublin, Ireland, ⁴Rheumatology, Tallaght Hospital, Dublin, Ireland, ⁵Trinity College Dublin, Trinity Biomedical Sciences Institute, Dublin, Ireland
Background/Purpose: Down syndrome (DS) is a common chromosomal disorder associated with a range of medical & immune abnormalities e.g. increased susceptibility to infections & a…
Abstract Number: 7 • 2018 ACR/ARHP Annual Meeting
RNA Sequencing Detection of Gene Dysregulation in B Cells Sorted from Salivary Gland Tissue and from Peripheral Blood Reveals New Pathways Involved in Primary Sjögren’s Syndrome Pathophysiology
Elodie Rivière^1,2, Nicolas Tchitchek¹, Gaetane Nocturne^1,3, Juliette Pascaud¹, Saida Boudaoud¹, Alice Thai⁴, Normand Allaire⁴, Bernd Jagla⁵, Michael Mingueneau⁴ and Xavier Mariette^1,3, ¹Immunology of viral Infections and Autoimmune Diseases, IDMIT, CEA - Université Paris Sud - INSERM U1184, Le Kremlin Bicêtre & Fontenay aux Roses, France, ²Arthritis Fondation Courtin, Paris, France, ³Rheumatology, Université Paris Sud, Le Kremlin Bicêtre, France, ⁴Immunology Research, Biogen, Cambridge, MA, ⁵Biomarker Discovery Platform UTechS CB, Hub de Bioinformatique et biostatistique C3IB, Institut Pasteur, Paris, France
Background/Purpose: Primary Sjögren's syndrome (pSS) is a chronic auto-immune disorder characterized by lymphocytic infiltrates and destruction of the salivary glands. Chronic B cell activation, the…
Abstract Number: 30 • 2018 ACR/ARHP Annual Meeting
CD21lo Cells Are Increased in Patients with Systemic Sclerosis and May be Associated with Interstitial Lung Disease
Erin Wilfong¹, Katherine Vowell², Leslie Crofford³ and Peggy Kendall¹, ¹Department of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University, Nashville, TN, ²Division of Rheumatology and Immunology, Vanderbilt University, Nashville, TN, ³Division of Rheumatology and Immunology, Vanderbilt University Medical Center, Nashville, TN
Background/Purpose: Systemic sclerosis (SSc) is a severe systemic disease characterized by fibrosis of the skin and visceral organs. While the exact pathogenesis of SSc is…