Abstracts tagged "B cells"

Abstract Number: 2974 • 2017 ACR/ARHP Annual Meeting
B Cell Binding Autoreactive VH4.34 Antibodies Are Specific to Lupus, Consist of Diverse Isotypes, and Are Associated with High Disease Activity and Lupus Nephritis
Scott Jenks¹, Joseph Marcus², Kevin Cashman¹ and Ignacio Sanz³, ¹Emory University School of Medicine and Lowance Center for Human Immunology, Atlanta, GA, ²San Antonio Uniformed Services Health Education Consortium, San Antonio, TX, ³Rheumatology and Lowance Center for Human Immunology, Emory University School of Medicine and Lowance Center for Human Immunology, Atlanta, GA
Background/Purpose: SLE is characterized by the dysregulation of humoral immunity including high levels of autoreactive IgG VH4.34 antibodies recognized by the rat anti-human idiotypic antibody…
Abstract Number: 36 • 2017 ACR/ARHP Annual Meeting
GM-CSF-Producing B Cells: A Novel B Cell Subset Involved in the Pathogenesis of Systemic Sclerosis
Kazuhiko Higashioka¹, Yuri Ota¹, Tsuyoshi Nakayama¹, Koji Mishima¹, Masahiro Ayano¹, Yasutaka Kimoto², Hiroki Mitoma¹, Mitsuteru Akahoshi¹, Yojiro Arinobu¹, Koichi Akashi¹, Takahiko Horiuchi³ and Hiroaki Niro⁴, ¹Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, ²Department of Internal Medicine, Kyushu University Beppu Hospital, Oita, Japan, ³Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan, ⁴Department of Medical Education, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
Background/Purpose: Systemic sclerosis (SSc) is a T helper type 2 (Th2)-driven autoimmune disease characterized by vasculopathy and fibrosis. There are still unmet needs in the…
Abstract Number: 949 • 2017 ACR/ARHP Annual Meeting
Sequence Homology and Immune Reactivity between T Cell Epitopes of Related Gut Microbes and Two Novel Autoantigens Provide a Link between Microbial and Host Immunity in Patients with Rheumatoid Arthritis
Annalisa Pianta¹, Sheila Arvikar², Klemen Strle³, Elise E. Drouin¹, Qi Wang⁴, Catherine E. Costello⁴ and Allen C. Steere⁵, ¹Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA, ²Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, BOSTON, MA, ³Department of Immunology and Inflammatory Diseases, Massachusetts General Hospital, BOSTON, MA, ⁴Center for Biomedical Mass Spectrometry, Boston University School of Medicine, Boston, MA, ⁵Center for Immunolgy and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA
Background/Purpose: It has been proposed that immunological triggers at mucosal sites, such as the gut microbiota, may promote autoimmunity affecting joints in patients with rheumatoid…
Abstract Number: 38 • 2017 ACR/ARHP Annual Meeting
Cytokine Production By CpG-Activated B Cells Require Glutaminolysis to Drive mTOR Activation, Aerobic Glycolysis and Mitochondrial Respiration
Matthew Cheung¹, Dongyue Huang¹, Emily Liu², Jennifer Ra² and Alfred Kim³, ¹Rheumatology, Washington University School of Medicine, Saint Louis, MO, ²IM/Rheumatology, Washington University School of Medicine, Saint Louis, MO, ³IM/Rheumatology, Washington University School of Medicine, St. Louis, MO
Background/Purpose: B cells contribute to disease pathophysiology through several mechanisms, including cytokine secretion. A wide variety of stimuli can activate B cells to produce cytokines…
Abstract Number: 1466 • 2017 ACR/ARHP Annual Meeting
The Effects of Rituximab and B-Cells Depletion on the Inflammatory and Pro-Thrombotic Profile of Leucocytes of Rheumatoid Arthritis Patients and on the Vascular Endothelium
Irene Cecchi¹, Carlos Perez-Sanchez², Patricia Ruiz-Limon³, Ivan Arias de la Rosa³, Maria Carmen Abalos-Aguilera³, Yolanda Jiménez-Gómez², Rafaela Ortega-Castro², Eduardo Collantes-Estévez², Alejandro Escudero-Contreras³, Massimo Radin⁴, Nuria Barbarroja², Dario Roccatello⁵, Savino Sciascia⁶ and Chary Lopez-Pedrera⁷, ¹Center of Research of Immunopathology and Rare Diseases- Coordinating Center of Piemonte and Valle d’Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, University of Turin, Italy, Turin, Italy, ²Rheumatology service, IMIBIC/Reina Sofia Hospital/University of Cordoba, Cordoba, Spain, ³Rheumatology Service, IMIBIC/Reina Sofia Hospital/University of Cordoba, Cordoba, Spain, ⁴Department of Clinical and Biological Sciences, Center of Research of Immunopathology and Rare Diseases- Coordinating Center of Piemonte and Valle d’Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, University of Turin, Italy, Turin, Italy, ⁵Center of Research of Immunopathology and Rare Diseases- Coordinating Center of Piemonte and Valle d’Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, University of Turin, Italy, Center of Research of Immunopathology and Rare Diseases- Coordinating Center of Piemonte and Valle d’Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, University of Turin, Italy, Turin, Italy, ⁶Center of Research of Immunopathology and Rare Diseases- Coordinating Center of Piemonte and Valle d’Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, University of Turin, Italy, Center of Research of Immunopathology and Rare Diseases- Coordinating Center of Piemonte and Valle d’Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, University of Turin, Italy, Torino, Italy, ⁷IMIBIC/Reina Sofia Hospital/ University of Cordoba, Cordoba, Spain
Background/Purpose: Cardiovascular disease (CVD) constitutes a relevant cause of morbidity and mortality in Rheumatoid Arthritis (RA) patients. Rituximab (RTX) has been proved to be effective…
Abstract Number: 40 • 2017 ACR/ARHP Annual Meeting
B-Cell Attracting Chemokine-1 (BCA-1) and Macrophage Inflammatory Protein-3 Alpha (MIP-3α) Act Synergistically in the Recruitment of B Cells in the Rheumatoid Synovium
Estefanía Armas-González¹, María Jesús Domínguez-Luis², María Teresa Arce-Franco³, Javier Castro-Hernández³, Vanesa Hernandez⁴, Sagrario Bustabad⁵, Alberto Cantabrana-Alutiz⁶ and Federico Díaz-González⁷, ¹Universidad de La Laguna, Departamento de Medicina Física y Farmacología, Facultad de Medicina, La Laguna, Tenerife, Spain, ²Laboratorio de Reumatología. Hospital Universitario de Canarias, La Laguna, Spain, ³Laboratorio de Reumatología. Hospital Universitario de Canarias, La Laguna, Tenerife, Spain, ⁴Rheumatology, Servicio de Reumatología. Hospital Universitario de Canarias, S/C Tenerife, Spain, ⁵Rheumatology, Servicio de Reumatología. Hospital Universitario de Canarias, La Laguna, Tenerife, Spain, ⁶Servicio de Reumatología. Hospital Universitario Nuestra Señora de Candelaria, La Laguna, Tenerife, Spain, ⁷Servicio de Reumatología. Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
Background/Purpose: B cells are recognized as key players in the pathogenesis of rheumatoid arthritis (AR) through the production of autoantibodies, the local production of proinflammatory…
Abstract Number: 1748 • 2017 ACR/ARHP Annual Meeting
Cbl-b Associates with Bcl-6 and Is Differentially Expressed in Circulating Follicular T Helper Cells of Patients with Systemic Lupus Erythematosus
Jeffrey Hampton¹, Giancarlo R. Valiente², Armin Munir³, Takuma Tsuzuki Wada³, William Willis³, Nicholas A. Young³, Lai-Chu Wu⁴, Jian Zhang⁵ and Wael Jarjour³, ¹Immunology and Rheumatoloty, The Ohio State University Wexner Medical Center, Columbus, OH, ²Rheumatology & Immunology, The Ohio State University Wexner Medical Center, Columbus, OH, ³Immunology and Rheumatology, The Ohio State University Wexner Medical Center, Columbus, OH, ⁴Biological Chemistry and Pharmacology, The Ohio State University Wexner Medical Center, Columbus, OH, ⁵Microbial Infection and Immunity, The Ohio State University Wexner Medical Center, Columbus, OH
Background/Purpose: Activation of polyclonal CD4+ T cells and B cells is a hallmark of human and murine lupus, which suggests a global defect in the…
Abstract Number: 42 • 2017 ACR/ARHP Annual Meeting
Resveratrol Regulates Sirt1 to Control B Cells Activation and Plasma B Cells Differentiation
Ting Wang¹, Xing Song², Xiaofang Luo², Mengtao Li² and Xiaofeng Zeng¹, ¹Rheumatology, Peking Union Medical College and Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China, ²Peking Union Medical College and Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
Background/Purpose: Systemic lupus erythematosus (SLE) is a multi-systemic autoimmune disease characterized by B cell hyperactivation and the production of autoantibodies. Histone deacetylase, Sirtuin1 (Sirt1) has…
Abstract Number: 1782 • 2017 ACR/ARHP Annual Meeting
Mycophenolic Acid Decreases IL-10 and IL-6 Production By B Cells of Granulomatosis with Polyangiitis Patients and Healthy Controls in Vitro
Anouk von Borstel¹, Wayel H. Abdulahad², Abraham Rutgers², Judith Land², Coen A. Stegeman¹, Peter Heeringa³ and Jan-Stephan F. Sanders¹, 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: Granulomatosis with polyangiitis (GPA) is a relapsing autoimmune disease affecting small- to medium-sized blood vessels. B cells are thought to play an important antibody-independent…
Abstract Number: 43 • 2017 ACR/ARHP Annual Meeting
Regulation of TLR7 Signalling By UBE2L3 Dependent Linear Ubiquitination Explains Dimethyl Fumarate Suppression of Autoreactive B Cell Development in SLE
Daniele Mauro¹, Victoria Tsang², Isabelle A. Clayton-Lucey³, Sara Pagani², Farah Alam², Elena Pontarini², Alessandra Nerviani², Angela Pakozdi⁴, Andrea Cove-Smith⁴, Ravindra Rajakariar⁴, Debasish Pyne⁴, Timothy J Vyse⁵, Costantino Pitzalis² and Myles J. Lewis^4,6, ¹Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom, ²Experimental Medicine & Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom, ³Experimental Medicine & Rheumatology, William Harvey Research Institute, Queen Mary University of London, EC1M 6BQ, United Kingdom, ⁴Barts Lupus Centre, Barts Health NHS Trust, London, United Kingdom, ⁵Division of Genetics and Molecular Medicine, King's College London, Guy's Hospital, London, United Kingdom, ⁶Rheumatology, Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
Background/Purpose: A single risk haplotype spanning UBE2L3 is strongly associated with SLE and multiple autoimmune diseases. The E2 ubiquitin-conjugating enzyme UBE2L3 regulates TNFα and CD40…
Abstract Number: 1834 • 2017 ACR/ARHP Annual Meeting
Selective Inhibitors of Nuclear Export Prevent Lupus Progression By Targeting Germinal Center Formation and Autoreactive Antibody Secreting Cells
Javier Rangel-Moreno¹, Jennifer Barnard², Shelton Cochran³, Margaret Lee³, Sharon Tamir³ and Jennifer H. Anolik⁴, ¹Medicine- Allergy, Immunology, and Rheumatology, University of Rochester Medical Center, Rochester, NY, ²Medicine-Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, ³Karyopharm Therapeutics, Newton, MA, ⁴Medicine- Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY
Background/Purpose: There is great interest in developing new treatment approaches for systemic lupus erythematosus (SLE), but the biologic therapies under investigation over the past several…
Abstract Number: 19 • 2017 ACR/ARHP Annual Meeting
The Transcription Factor Specificity Protein 1 up-Regulates IL-21 Receptor Expression on B Cells in Rheumatoid Arthritis Leading to Altered Cytokine Production and Maturation
Elizabeth Dam¹, Alison Maier¹, Anne Hocking¹, Jeffrey Carlin² and Jane H. Buckner¹, ¹Benaroya Research Institute at Virginia Mason, Seattle, WA, ²Rheumatology, Virginia Mason Medical Center, Seattle, WA
Background/Purpose: Growing evidence suggests that IL-21 has a role in B cell dysfunction in rheumatoid arthritis (RA). Previous studies have reported that IL-21 levels are…
Abstract Number: 44 • 2017 ACR/ARHP Annual Meeting
Characterization of Novel Stromal-Derived Autoantigens Recognized By RA Synovial Monoclonal Antibodies
Elisa Corsiero¹, Lucas Jagemann¹, Costantino Pitzalis² and Michele Bombardieri³, ¹Centre for Experimental Medicine & Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom, ²Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom, ³Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
Background/Purpose: We previously showed that up to 40% of RA synovial recombinant monoclonal antibodies (RA-rmAbs) generated from germinal center-like structure (GC-LS+) RA synovium recognize citrullinated…
Abstract Number: 1837 • 2017 ACR/ARHP Annual Meeting
Development of Murine SLE in the Absence of BAFF
William Stohl¹, Ning Yu¹, Samantha Chalmers², Chaim Putterman³ and Chaim O. Jacob¹, ¹Division of Rheumatology, Keck School of Medicine of University of Southern California, Los Angeles, CA, ²Division of Rheumatology, Albert Einstein College of Medicine, Bronx, NY, ³Division of Rheumatology, Albert Einstein College of Medicine, Bronx, NY, USA, Bronx, NY
Background/Purpose: BAFF is a vital survival and differentiation factor for B cells. In human SLE, clinical efficacy with any of 4 different BAFF antagonists is…
Abstract Number: 21 • 2017 ACR/ARHP Annual Meeting
Reciprocal Regulation of B Cells on Bleomycin-Induced Scleroderma Model: IL-6-Producing Effector B Cells Play a Pathogenic Role, While IL-10-Producing Regulatory B Cells Play a Protective Role
Takashi Matsushita¹, Yasuhito Hamaguchi¹, Minoru Hasegawa², Manabu Fujimoto³ and Kazuhiko Takehara⁴, ¹Department of Dermatology, Kanazawa University, kanazawa, Japan, ²Department of Dermatology, University of Fukui, Fukui, Japan, ³Department of Dermatology, University of Tsukuba, Tsukuba, Japan, ⁴Department of Dermatology, Kanazawa University, Kanazawa, Japan
Background/Purpose: IL-10-producing regulatory B (Breg) cells negatively regulate autoimmune diseases. We reported that Breg cells play a protective role in a mouse model of systemic…

« Previous Page
1
…
4
5
6
7
8
…
25
Next Page »

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].