Abstracts tagged "B cells"

Abstract Number: 1826 • 2016 ACR/ARHP Annual Meeting
STAT3 Phosphorylation Mediates the Stimulatory Effects of Interferon Alpha on B Cell Differentiation and Activation in SLE
Julie Ducreux¹, Floor Aleva², Aurelie Degroof³, Alina Ferster⁴, Andre van der Ven², Frank van de Veerdonk², Frédéric A. Houssiau¹ and Bernard R. Lauwerys¹, ¹Pôle de pathologies rhumatismales inflammatoires et systémiques, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium, ²Department of General Internal Medicine, Radboud University, Nijmegen, Netherlands, ³Pôle de Maladies Rhumatismales, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium, ⁴Service d'Onco-Hématologie, Hôpital Reine Fabiola, Brussels, Belgium
Background/Purpose: In our previous work, we reported a link between interferon alpha inhibition and decreased expression of B cell activation genes in ex vivo whole…
Abstract Number: 2712 • 2016 ACR/ARHP Annual Meeting
Inverse Correlation Between IL-10-Producing Bregs and IFN-Gamma-Producing NK Cells in Psoriatic Arthritis and Psoriasis
Athanasios Mavropoulos¹, Areti Varna¹, Christos Liaskos¹, Efterpi Zafiriou², Marianna Vlychou³, Christina Katsiari⁴, Dimitrios Bogdanos⁵ and Lazaros I. Sakkas⁶, ¹Department of Rheumatology, School of Health Sciences, University of Thessaly, Larissa, Greece, ²Dermatology, University of Thessaly, Larissa, Greece, ³Radiology, University of Thessaly, Larissa, Greece, ⁴Department of Rheumatology, University of Thessaly, Larrisa, Thessaly, Greece, ⁵Department of Rheumatology, University of Thessaly, Larissa, Greece, ⁶University, Athens, Greece
Background/Purpose: A recent study from our group has shown functional impairment and numerical decrease of transitional and memory IL-10-producing regulatory B cells (Bregs) in patients…
Abstract Number: 814 • 2016 ACR/ARHP Annual Meeting
The Regulatory B Cells Ameliorate Skin Sclerosis, Lung Fibrosis, and Autoimmunity Via an Anti-Oxidative Effect in Systemic Sclerosis Model Mice
Ayumi Yoshizaki, Takemichi Fukasawa, Satoshi Ebata, Kouki Nakamura, Takashi Yamashita, Ryosuke Saigusa, Yohei Ichimura, Takehiro Takahashi, Takashi Taniguchi, Asano Yoshihide and Shinichi Sato, Dermatology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
Background/Purpose: Systemic sclerosis (SSc) is a connective tissue disease characterized by vascular damage, excessive deposition of extracellular matrix, and fibrosis in the several organs, including…
Abstract Number: 1840 • 2016 ACR/ARHP Annual Meeting
A Dichotomy of Regulatory Immunome Is Related to Disease Activity in Juvenile Systemic Lupus Erythematosus
Joo Guan Yeo^1,2, Thaschawee Arkachaisri^1,3, Justin Hung Tiong Tan¹, Jing Yao Leong⁴, Lena Das¹, Loshinidevi D/O Thana Bathi², Phyllis Chen² and Salvatore Albani^3,4, ¹Rheumatology and Immunology, KK Women's and Children's Hospital, Singapore, Singapore, ²Singhealth Translational Immunology and Inflammation Centre, Singapore Health Services Pte Ltd, Singapore, Singapore, ³Duke-National University of Singapore Medical School, Singapore, Singapore, ⁴SingHealth Translational Immunology and Inflammation Centre, Singapore Health Services Pte Ltd, Singapore, Singapore
Background/Purpose: The pathogenesis of SLE involves disturbances to the homeostatic balance between the immune effector and regulatory system. The conventional mono-dimensional mechanistic interrogation of one…
Abstract Number: 2785 • 2016 ACR/ARHP Annual Meeting
Translatable in Vitro Immunocyte Functional Measures of CC-292 and CC-90008 Inhibitors of the Bruton’s Tyrosine Kinase (Btk)/Tec Family and the Pathology Observed in the MLR/Lpr Mouse Model of Systemic Lupus Erythematosus (SLE)
Garth Ringheim¹, Jolanta Kosek², Lori Capone³, Mary Adams^4,5, Eun Mi Hur⁴ and Peter H. Schafer⁵, ¹86 Morris Avenue, Celgene Corporation, Summit, NJ, ²Translational Development, Celgene Corporation, Summit, NJ, ³Celgene Corporation, Summit, NJ, ⁴Inflammation and Immunology Translational Development, Celgene Corporation, Summit, NJ, ⁵Department of Translational Development, Celgene Corporation, Summit, NJ
Background/Purpose: CC-292 and CC-90008 are covalent Btk/Tec family kinase inhibitors that block Btk activity by binding with high affinity to the adenosine triphosphate (ATP) binding…
Abstract Number: 816 • 2016 ACR/ARHP Annual Meeting
Clinical Response to Treatment with Belimumab and Mycophenolate Mofetil Is Associated with Decrease in B Cell, TGF-β and PDGF Signaling in Systemic Sclerosis
Viktor Martyanov¹, Jessica K. Gordon², Tammara A. Wood¹, Robert F. Spiera² and Michael L. Whitfield¹, ¹Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, ²Rheumatology, Hospital for Special Surgery, New York, NY
Background/Purpose: While B cell signaling is thought to be important in the pathogenesis of systemic sclerosis (SSc), the experience with B cell targeting therapies in…
Abstract Number: 1921 • 2016 ACR/ARHP Annual Meeting
Evidence for Prevotella Copri As an Immune-Relevant Bacterium in Rheumatoid Arthritis
Annalisa Pianta¹, Sheila Arvikar¹, Klemen Strle¹, Elise E. Drouin², Qi Wang³, Catherine E. Costello³ and Allen C. Steere⁴, ¹Massachusetts General Hospital, Harvard Medical School, Boston, MA, ²Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA, ³Center for Biomedical Mass Spectrometry, Boston University School of Medicine, Boston, MA, ⁴Center for Immunolgy and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA
Background/Purpose: Prevotella copri Methods: HLA-DR-presented peptides were identified directly from RA patients' synovial tissue or peripheral blood mononuclear cells (PBMC) by tandem mass spectrometry. P.…
Abstract Number: 2861 • 2016 ACR/ARHP Annual Meeting
Proportions of Circulating Follicular Helper T Cells and Complement Levels, White Blood Cell Counts, and Skin Manifestations in Patients with Active Systemic Lupus Erythematosus
Jun Kikuchi¹, Masaru Takeshita¹, Katsuya Suzuki², Yoshiaki Kassai³, Takahiro Miyazaki³ and Tsutomu Takeuchi², ¹Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan, ²Keio University School of Medcine, Division of Rheumatology, Department of Internal Medicine, Tokyo, Japan, ³Inflammation Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., Kanagawa, Japan
Background/Purpose: Although circulating B cells and T cells, including follicular helper T (Tfh) cells, are reported to be involved in systemic lupus erythematosus (SLE) 1,2),…
Abstract Number: 916 • 2016 ACR/ARHP Annual Meeting
Novel Immunosignature Stratifies Patients with Rheumatoid Arthritis into Distinct Disease Sub-Groups and Predicts Response to Anti-Tnfα Therapies
Laura Magill¹, Marsilio Adriani¹, Victoria Howard², Jessica Manson², Elizabeth Jury³ and Claudia Mauri⁴, ¹University College London, London, United Kingdom, ²University College London Hospitals NHS Trust, London, United Kingdom, ³Division of Medicine, Centre for Rheumatology Research, University College London, London, United Kingdom, ⁴Division of Medicine, Centre for Rheumatology Research, University College London, University College London, London, United Kingdom
Background/Purpose: Autoimmune rheumatic diseases, including rheumatoid arthritis (RA), have multifactorial pathogenesis associated with failure of immune tolerance. Advances in understanding the disease immunopathology have led…
Abstract Number: 1937 • 2016 ACR/ARHP Annual Meeting
Analysis of Innate and Adaptive Immune Responses in Eosinophilic Granulomatosis with Polyangiitis (Churg-Strauss)
Jeremie Dion^1,2, Jonathan London^2,3, Benjamin Chaigne^2,4, Nicolas Dumoitier², Bertrand Dunogué⁵, Pascal Cohen³, Matthieu Groh⁴, Claire Le Jeunne⁴, Luc Mouthon^2,5 and Benjamin Terrier^2,5, ¹Internal medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France, ²INSERM U1016, Institut Cochin, Equipe Neutrophiles et Vascularites, Paris, France, ³Internal Medecine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France, ⁴National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France, ⁵Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France
Background/Purpose: Eosinophilic granulomatosis with polyangiitis (EGPA, formerly called Churg-Strauss syndrome) belongs to ANCA-associated vasculitis and is characterized by late onset asthma, blood and tissue eosinophilia…
Abstract Number: 2872 • 2016 ACR/ARHP Annual Meeting
SLE Subjects Express High Levels of Intracellular Interferon-β That Acts in an Autocrine Fashion to Promote Survival of Transitional Stage B Cells
Jennie Hamilton¹, Qi Wu², PingAr Yang³, Bao Luo⁴, Shanrun Liu⁵, Jun Li⁶, Ignacio Sanz⁷, W. Winn Chatham⁸, Hui-Chen Hsu² and John D. Mountz⁹, ¹Medicine/Division of Clinical Immunology and Rhematology, University of Alabama at Birmingham, Birmingham, AL, ²Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, ³Department of Medicine, Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ⁴Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, ⁵Biochemistry & Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, ⁶Medicine, University of Alabama at Birmingham, Birmingham, AL, ⁷Rheumatology and Lowance Center for Human Immunology, Emory University School of Medicine and Lowance Center for Human Immunology, Atlanta, GA, ⁸Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ⁹Department of Medicine, Clinical Immunology & Rheumatology, University of Alabama at Birmingham and Birmingham VA Medical center, Birmingham, AL
Background/Purpose: Upregulation of interferon-β (IFNβ) is an important step in promoting maturation and survival of B cells. Secretion and autocrine action of IFNβ requires assembly…
Abstract Number: 124 • 2016 ACR/ARHP Annual Meeting
Socioeconomic-Demographic, Disease Activity, Treatment and Immunologic Variables Affect B Cell Subtypes in Systemic Lupus Erythematosus
Arlene Bravo¹, Michelle T. Ngo², Michael De Vera³, Karina Marianne D. Torralba^2,4 and Abigail Benitez^2,4, ¹Internal Medicine, Loma Linda University, Loma Linda, CA, ²Rheumatology, Loma Linda University, Loma Linda, CA, ³Transplant Surgery, Loma Linda University, Loma Linda, CA, ⁴Transplantation Institute, Loma Linda University, Loma Linda, CA
Background/Purpose: B cell subset proportions within the B cell pool, also known as B cell signatures (BCS), reflect not only systemic lupus erythematosus (SLE) disease…
Abstract Number: 917 • 2016 ACR/ARHP Annual Meeting
B Cells Inhibit Osteoblast Differentiation in Inflammatory Arthritis
Wen Sun^1,2, Nida Meednu³, Alex Rosenberg¹, Javier Rangel-Moreno⁴, Victor Wang³, Teresa Owen¹, Hengwei Zhang⁵, Brendan Boyce¹, Jennifer H. Anolik¹ and Lianping Xing¹, ¹University of Rochester Medical Center, Rochester, NY, ²Nanjing Medical University, Nanjing, China, ³Medicine- Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, ⁴Allergy, Immunology & Rheumatology, University of Rochester Medical Center, Rochester, NY, ⁵Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY
Background/Purpose: Rheumatoid arthritis (RA) is frequently associated with bone loss due to imbalanced bone resorption and formation. B cell depletion therapy (BCDT) attenuates bone erosion…
Abstract Number: 1951 • 2016 ACR/ARHP Annual Meeting
Phenotypic and Functional Perturbations of Peripheral B and T Lymphocytes in Granulomatosis with Polyangiitis and Microscopic Polyangiitis
Jonathan London^1,2,3, Nicolas Dumoitier¹, Jeremie Dion^1,4, Benjamin Chaigne^1,5, Sebastien Lofek¹, Pascal Cohen^2,3, Claire Le Jeunne³, Nadine Varin-Blank⁶, Loïc Guillevin^3,5, Benjamin Terrier^1,5,7, Luc Mouthon^1,3,5 and the French Vasculitis Study Group, ¹INSERM U1016, Institut Cochin, Equipe Neutrophiles et Vascularites, Paris, France, ²Internal Medecine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France, ³Department of Internal Medicine, Referral Center for Rare Autoimmune and Systemic Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France, Paris, France, ⁴Internal medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France, ⁵National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France, ⁶UFR SMBH, INSERM, UMR978, Bobigny, France, ⁷Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, France
Background/Purpose: Granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA) are both anti-neutrophil cytoplasm antibodies (ANCA)-associated vasculitides (AAV), but differ in clinical presentation. Anti-myeloperoxydase (MPO)-ANCA were…
Abstract Number: 2874 • 2016 ACR/ARHP Annual Meeting
CD16+monocytes Are Enriched and Functionally Exacerbated in Driving B Cell Activation Under Systemic Lupus Erythematosus Condition
Huaqun Zhu¹, Yin Su², Fanlei Hu³ and Liling Xu³, ¹Department of Rheumatology and Immunology/Clinical Immunology Center, Peking University People's Hospital, Beijing, China, ²Department of Rheumatology and Immunology,Clinical Immunology Center, Peking University People's Hospital, Beijing, China, ³Peking University People's Hospital, Beijing, China
Background/Purpose: Systemic lupus erythematosus(SLE) was an autoimmune disease characterized by extensive B cell activation and autoantibody production. Human peripheral monocytes could be categorized into three subsets…

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