Abstracts tagged "B cells"

Abstract Number: 662 • 2014 ACR/ARHP Annual Meeting
Interferon Regulatory Factor-5 Promotes Disease in the MRL/Lpr Mouse Model of Lupus
Amanda Watkins¹, Ramon Bonegio², Guneet Kochar¹, Gabriella Wilson¹, Bari Laskow¹, Christophe Richez¹, Ian Rifkin¹ and Kei Yasuda³, ¹Boston University School of Medicine, Boston, MA, ²Renal, Boston University School of Medicine, Boston, MA, ³Medicine, Boston University School of Medicine, Boston, MA
Background/Purpose Interferon regulatory factor 5 (IRF5) polymorphisms are strongly associated with an increased risk of developing Systemic Lupus Erythematosus (SLE). SLE is caused, in part,…
Abstract Number: 1950 • 2014 ACR/ARHP Annual Meeting
Circulating CD19⁺CD38⁺CD43⁺ B Cell Subset in SLE Patients Have More Cell Cycle Related Genes Than Healthy Controls
Hiroshi Fujii¹, Tomoaki Machiyama¹, Kanae Akita², Yukiko Kamogawa¹, Ryu Watanabe¹, Yoko Fujita³, Yuko Shirota⁴, Shinichiro Saito⁵, Tomonori Ishii⁶ and Hideo Harigae¹, ¹Department of Hematology and Rheumatology, Tohoku University, Sendai, Japan, ²Department of Heatology and Rheumatology, Tohoku University, Sendai, Japan, ³Department of Hematolgy and rheumatolgy, Tohoku University, Sendai, Japan, ⁴Department of Hematology and Rheumatolgy, Tohoku University, Sendai, Japan, ⁵Department of hematology and rheumatology, Tohoku University, Sendai, Japan, ⁶Seiryouchou Aobaku, Tohoku University, Sendai, Japan
Background/Purpose: Systemic lupus erythematosus (SLE) is a chronic inflammatory disease associated with deposition of autoantibodies such as anti DNA antibody. After activation of B cells…
Abstract Number: 1640 • 2014 ACR/ARHP Annual Meeting
Cyclophosphamide Diminishes Plasmablasts and Transitional B Cells and Suppresses Autocrine Production of B Cell Activating Factor of Tumor Necrosis Factor Family (BAFF) in These Cells in Patients with Systemic Lupus Erythematosus
Yuko Okamoto¹, Yasuhiro Katsumata¹, Yasushi Kawaguchi¹, Manabu Kawamoto¹, Takahisa Gono¹, Masanori Hanaoka¹, Tomoaki Higuchi¹, Hidenaga Kawasumi¹ and Hisashi Yamanaka², ¹Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan, ²Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
Background/Purpose . B cell activating factor of tumor necrosis factor family (BAFF) is a positive regulator of B cell function and expressed in dendritic cells,…
Abstract Number: 643 • 2014 ACR/ARHP Annual Meeting
The Effect of TNF Inhibition on the Autoreactive B Cell Repertoire in SLE Prone Mice
Anne Davidson, Weiqing Huang and Ranjit Sahu, Autoimmunity and Musculoskeletal Diseases, Feinstein Institute for Medical Research, Manhasset, NY
Background/Purpose: TNF inhibitors are widely used for inflammatory diseases but often induce ANAs that sometimes progress to overt SLE. TNF deficient mice fail to generate…
Abstract Number: 1948 • 2014 ACR/ARHP Annual Meeting
A Dual Role for IFN-γ in Development of Peripheral B Cells in Lupus-Prone MRL/Lpr Mice
Takeshi Machida¹, Natsumi Sakamoto¹, Gary S. Gilkeson² and Hideharu Sekine¹, ¹Immunology, Fukushima Medical University School of Medicine, Fukushima, Japan, ²Department of Medicine, Division of Rheumatology, Medical University of South Carolina, Charleston, SC
Background/Purpose: It had been reported previously that IFN-gamma and IFN-gamma-receptor-1 (IFNGR1) were required for auto-Ab production and development of renal disease in lupus-prone MRL/lpr mice.…
Abstract Number: 1607 • 2014 ACR/ARHP Annual Meeting
B Cell and Neutrophil-Related Transcripts Predict and Characterize a Lupus Flare
Mikhail Olferiev¹, Kyriakos A. Kirou² and Mary K. Crow³, ¹Research, HSS, New York, NY, ²Hospital for Special Surgery, New York, NY, ³Department of Medicine, Hospital for Special Surgery, New York, NY
Background/Purpose Lupus flare reflects an increase of disease activity that is associated with significant morbidity and accumulation of tissue damage. Prediction and prevention of lupus…
Abstract Number: 646 • 2014 ACR/ARHP Annual Meeting
ONO-4059 – a Highly Potent and Dual Oral Inhibitor of Bruton’s Tyrosine Kinase (Btk) and Tec Kinase: Improves Anti-Nuclear Antibodies–mediated SLE in Mice
Yuko Ariza¹, Toshio Yoshizawa¹, Yoshiko Ueda¹, Masayuki Murata¹ and Kazuhito Kawabata², ¹Exploratory Research Laboratories 1, Ono Pharmaceutical Co., Ltd., Osaka, Japan, ²Discovery Research Laboratories 3, Ono Pharmaceutical Co., Ltd., Osaka, Japan
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a complex and heterogeneous autoimmune disease associated with the over production of high affinity autoantibodies, mainly raised against nuclear…
Abstract Number: 1956 • 2014 ACR/ARHP Annual Meeting
Increased IL-6 Production By Effector B Cells in Giant Cell Arteritis and Polymyalgia Rheumatica
Kornelis S.M. van der Geest¹, Wayel H. Abdulahad², Gerda Horst³, Abraham Rutgers², Annemieke M.H. Boots⁴ and Elisabeth Brouwer⁵, ¹Dept. of Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, Netherlands, ²Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, Netherlands, ³University Medical Center Groningen, Groningen, Netherlands, ⁴Dept. of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands, ⁵Hanzeplein 1, UMCG, Groningen, Netherlands
Background/Purpose: The role of B cells in auto-immunity may extend beyond the production of auto-antibodies. B cells can influence T cell responses via antigen presentation…
Abstract Number: 1471 • 2014 ACR/ARHP Annual Meeting
TNFα Influences the Status of B and T Cells By Acting on BCR and TCR Pathways Via RasGRP1 and RasGRP3 Proteins
Marie-Laure Golinski¹, Martine Hiron², Céline Derambure², Clément Guillou¹, Manuel Fréret², Olivier Boyer³, Olivier Vittecoq⁴ and Thierry Lequerré⁵, ¹Inserm 905 & Institute for Biomedical Research, University of Rouen, Rouen, France, ²Inserm 905 & Institute for Biomedical Research, University of Rouen, Rouen, France, Rouen, France, ³Immunology, INSERM U905, University of Rouen, Rouen, France, ⁴Rheumatology, Department of Rheumatology, Rouen University Hospital & Inserm 905, Institute for Biomedical Research, University of Rouen, Rouen, France, ⁵1 Rue De Germont, Chu De Rouen, Rouen, France
Background/Purpose Rheumatoid arthritis (RA) is the most common inflammatory arthritis. B and T cells play a key role in the RA pathophysiology. RasGRP is a…
Abstract Number: 605 • 2014 ACR/ARHP Annual Meeting
Decreased Frequencies of Circulating Follicular Helper T Cell Counterparts and Plasmablasts in Ankylosing Spondylitis Patients Naïve for TNF Blockers
M. Belén Bautista-Caro¹, Irene Arroyo-Villa¹, Concepcion Castillo-Gallego¹, Eugenio De Miguel², Diana Peiteado¹, Chamaida Plasencia-Rodriguez¹, Alejandro Villalba¹, Paloma Sanchez-Mateos³, Amaya Puig-Kröger⁴, Emilio Martín-Mola¹ and Maria Eugenia Miranda-Carus¹, ¹Rheumatology, Hospital La Paz - IdiPaz, Madrid, Spain, ²Rheumatology, University Hospital La Paz - IdiPaz, Madrid, Spain, ³Immunology, Hospital Gregorio Marañon, Madrid, Spain, ⁴Laboratorio de Inmuno-Metabolismo, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
Background/Purpose: Follicular helper T cells (Tfh), localized in lymphoid organs, promote B cell differentiation and function. Circulating CD4 T cells expressing CXCR5, ICOS and/or PD-1…
Abstract Number: 2980 • 2014 ACR/ARHP Annual Meeting
Genome-Wide DNA Methylation Analysis of CD19+ B Cells in Primary Sjögren’s Syndrome
Gunnel Nordmark¹, Juliana Imgenberg-Kreuz², Jonas Carlsson Almlöf², Jessica Nordlund², Roald Omdal³, Katrine B. Norheim³, Maija-Leena Eloranta⁴, Lars Rönnblom⁴ and Johanna K. Sandling², ¹Rheumatology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden, ²Molecular Medicine and Science for Life Laboratory, Department of Medical Sciences, Uppsala University, Uppsala, Sweden, ³Clinical Immunology Unit, Department of Internal Medicine, Stavanger University Hospital, Stavanger, Norway, ⁴Department of Medical Sciences, SciLife Lab, Rheumatology, Uppsala University, Uppsala, Sweden, Uppsala, Sweden
Background/Purpose Increasing evidence suggests an epigenetic contribution to the pathogenesis of autoimmune diseases, including primary Sjögren’s Syndrome (pSS) (1). A genome-wide DNA methylation study in…
Abstract Number: 1952 • 2014 ACR/ARHP Annual Meeting
Elucidation of Molecular Mechanisms of Breg Induction in Autoimmune Diseases
Shun-ichiro Ota, Hiroaki Niiro, Naoko Ueki, Yuri Hirosaki, Hirofumi Tsuzuki, Kumiko Noda, Siamak Jabbarzadeh-Tabrizi, Atsushi Tanaka, Hiroki Mitoma, Mitsuteru Akahoshi, Yojiro Arinobu, Hiroshi Tsukamoto and Koichi Akashi, Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
Background/Purpose The advent of B-cell depletion therapy in autoimmune diseases identifies a novel B cell population, referred to as regulatory B cells (Bregs), that exerts…
Abstract Number: 986 • 2014 ACR/ARHP Annual Meeting
Integrated Comprehensive Analysis of Immune Cell Subsets and Serum Protein Profile Identifies the Role of Pre-Germinal Center B Cells in Sjogren’s Syndrome Pathogenesis
Yoshiaki Kassai¹, Katsuya Suzuki², Rimpei Morita³, Maiko Takiguchi¹, Rina Kurisu¹, Takahiro Miyazaki¹, Akihiko Yoshimura³ and Tsutomu Takeuchi², ¹Inflammation Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Kanagawa, Japan, ²Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan, ³Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
Background/Purpose Whole blood flow cytometric analysis and serum protein profiling were commonly utilized to characterize disease-specific alterations in a wide variety of autoimmune diseases. However,…
Abstract Number: L3 • 2014 ACR/ARHP Annual Meeting
Low Protein A20 Expression in Minor Salivary Glands Is Associated with Lymphoma Development in Primary Sjögren’s Syndrome
Svein Joar A. Johnsen¹, Einar Gudlaugsson², Ivar Skaland², Emiel Janssen², Malin V. Jonsson³, Lars Helgeland⁴, Ellen Berget⁵, Roland Jonsson⁶ and Roald Omdal¹, ¹Clinical Immunology Unit, Department of Internal Medicine, Stavanger University Hospital, Stavanger, Norway, ²Stavanger University Hospital, Stavanger, Norway, ³Department of Clinical Dentistry - Section for Oral and Maxillofacial Radiology, University of Bergen, Bergen, Norway, ⁴Haukeland University Hospital, Bergen, Norway, ⁵University of Bergen, Bergen, Norway, ⁶Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
Background/Purpose: Patients with primary Sjogrens syndrome (pSS) have an increased risk of developing lymphomas, especially of the subtype mucosa-associated lymphoid tissue (MALT) lymphoma. Chronic antigen…
Abstract Number: 2870 • 2014 ACR/ARHP Annual Meeting
B Cell-Intrinsic Deletion of the Type 1 Interferon Receptor Does Not Impact the Development of Murine Lupus
Shaun W. Jackson^1,2, Nicole Scharping¹, Socheath Khim¹ and David Rawlings^1,2, ¹Seattle Children's Research Institute, Seattle, WA, ²Pediatrics, University of Washington, Seattle, WA
Background/Purpose Type 1 interferon (IFN) is strongly implicated in lupus pathogenesis, and patients with SLE frequently express a “type 1 IFN gene signature”. Type 1…

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