Abstracts tagged "B cells"

Abstract Number: 37 • 2013 ACR/ARHP Annual Meeting
Follicular Entry Of Lymphotoxin-Expressing B Cells Via Type I Interferon Disrupts Marginal Zone Barrier Integrity and Exacerbates Systemic Autoimmunity
Hao Li¹, Hui-Chen Hsu², Qi Wu³, Jun Li³, PingAr Yang³, Yang-Xin Fu⁴ and John D. Mountz⁵, ¹Dept. Med - Immunology/Rheumatology division, University of Alabama at Birmingham, Birmingham, AL, ²Birmingham VA Medical Center, Birmingham, AL, ³Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, ⁴Department of Pathology, The University of Chicago, Chicago, IL, ⁵Dept of Med/Rheumatology Div, University of Alabama at Birmingham, Birmingham, AL
Background/Purpose: Marginal zone macrophages (MZMs), a small subset of specialized splenic macrophages located in the MZ, act as final follicular entry barrier to clear apoptotic…
Abstract Number: 1743 • 2013 ACR/ARHP Annual Meeting
Administration Of AMG 557, a Human Anti-B7RP-1 (ICOSL) Antibody, Leads To The Selective Inhibition Of Anti-KLH IgG Responses In Subjects With SLE: Results Of a Phase 1 Randomized, Double-Blind, Placebo-Controlled, Sequential, Rising, Multiple-Dose Study
Barbara Sullivan¹, Wayne H. Tsuji², Vishala L. Chindalore³, Thomas D. Geppert⁴, Alla Rudinskaya⁵, Patricia Pardo⁶, Alan Kivitz⁷, C. Michael Neuwelt⁸, Meggan Mackay⁹, R. John Looney¹⁰, J. Carter Thorne¹¹, Marilee Andrew¹², Greg Arnold¹³, Michael Boedigheimer¹, Kit Chiu¹, Cherie Green¹, Arunan Kaliyaperumal¹, Christine Wang¹⁴, Andrew Welcher¹ and James Chung¹, ¹Amgen, Thousand Oaks, CA, ²Clinical Research/Inflammation, Amgen, Seattle, WA, ³Anniston Medical Clinic PC, Anniston, AL, ⁴Metroplex Clinical Research Center, LLC, Dallas, TX, ⁵Danbury Hospital, Danbury, CT, ⁶MRA Clinical Research, Miami, FL, ⁷Altoona Center for Clinical Research, Duncansville, PA, ⁸East Bay Rheumatology Research Institute, San Leandro, CA, ⁹Autoimmune & Musculoskeletal Disease, Feinstein Institute for Medical Research, Manhasset, NY, ¹⁰Allergy, Immunology and Rheumatology, University of Rochester, Rochester, NY, ¹¹Southlake Regional Health Centre, Newmarket, ON, Canada, ¹²Amgen, Seattle, WA, ¹³Medical Sciences, Amgen, Thousand Oaks, CA, ¹⁴Biostatistics, Amgen, Thousand Oaks, CA
Background/Purpose: The interaction of inducible costimulator (ICOS) with its ligand, B7-related protein-1 (B7RP-1 or ICOSL), plays a role in T cell differentiation, cytokine production, and…
Abstract Number: 890 • 2013 ACR/ARHP Annual Meeting
Quantitative Cell Distance Mapping In Human Nephritis Reveals Organization Of In Situ Adaptive Immune Responses
Marcus R. Clark¹, Vladimir M. Liarski¹, Natalya Kavernia², Maryellen L. Giger³, Anthony Chang⁴, Yahui Peng³ and Daniel F. Brandt², ¹Rheumatology and Knapp Center for Lupus Research, University of Chicago, Chicago, IL, ²Rheumatology, University of Chicago, Chicago, IL, ³Radiology, University of Chicago, Chicago, IL, ⁴Pathology, University of Chicago, Chicago, IL
Background/Purpose: Inflammatory infiltrates contain multiple cell types that could interact in myriad ways to amplify in situ immune responses. However, there currently are no methods…
Abstract Number: 38 • 2013 ACR/ARHP Annual Meeting
Use Of An In Vitro Whole Blood Depletion ASSAY To Compare The Efficacy Of B CELL Depleting Agents In Patients With Systemic LUPUS Erythematosus
Venkat Reddy¹, Geraldine Cambridge², D.A. Isenberg³, Mark Cragg⁴ and Maria Leandro⁵, ¹Rheumatology, University College London, London, United Kingdom, ²Centre for Rheumatology, Department of Medicine, University College London, London, United Kingdom, ³Centre for Rheumatology Research, University College London, London, United Kingdom, ⁴Antibody and Vaccine group, Cancer Sciences Unit, Faculty of Medicine, Southampton University, Southampton, United Kingdom, ⁵Centre for Rheumatology Research, Division of Medicine, University College London, London, United Kingdom
Background/Purpose: Variability in clinical response to B-cell depletion therapy (BCDT) with the anti-CD20mAb rituximab (RTX) has been well described in Systemic Lupus Erythematosus (SLE). Poor…
Abstract Number: 172 • 2013 ACR/ARHP Annual Meeting
Transcript Profiling Of Kidney Biopsies From Chinese Patients With Lupus Nephritis Suggests a Prevalence Of Infiltrating CD8+ T Cells, Monocytes/Macrophages, and B Cells In ISN/RPS Class IV Disease
Zheng Liu¹, Chris Morehouse¹, Xinfang Huang², Philip Brohawn¹, Nan Shen³, Gabor G. Illei⁴, Yihong Yao¹ and Brandon W. Higgs¹, ¹Translational Sciences, MedImmune, LLC, Gaithersburg, MD, ²Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China, ³Division of Rheumatology & the Center for Autoimmune Genomics and Etiology (CAGE), Cincinnati Children’s Hospital Medical Center, cincinnati, OH, ⁴Clinical Development, MedImmune, LLC, Gaithersburg, MD
Transcript profiling of kidney biopsies from Chinese patients with lupus nephritis suggests a prevalence of infiltrating CD8+ T cells, monocytes/macrophages, and B cells in ISN/RPS…
Abstract Number: 1665 • 2013 ACR/ARHP Annual Meeting
B Cells Revisited In Giant Cell Arteritis
Kornelis S.M. van der Geest¹, Wayel H. Abdulahad², Gerda Horst², Caroline Roozendaal³, Abraham Rutgers², Annemieke M.H. Boots² and Elisabeth Brouwer², ¹Dept. of Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, Netherlands, ²Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, Netherlands, ³Laboratory Medicine, University Medical Center Groningen, Groningen, Netherlands
Background/Purpose: Giant cell arteritis (GCA) is a primary vasculitis affecting large to medium-sized arteries. Ample evidence suggests that dendritic cells, T cells and monocytes/macrophages contribute…
Abstract Number: 705 • 2013 ACR/ARHP Annual Meeting
Treatment With Rituximab Reduces Activation Of Scleroderma Dermal Fibroblasts
Paolo Fraticelli¹, Salvatore De Vita², Nicoletta Franzolini³, Silvia Svegliati⁴, Cecilia Tonnini⁴, Barbara Gabrielli⁵, Cathryn Anne Scott⁶, Giovanni Pomponio⁷, Gianluca Moroncini⁴ and Armando Gabrielli⁴, ¹Istituto di Clinica Medica, Università Politecnica delle Marche, Ancona, Italy, ²Rheumatology, DSMB, University Hospital Santa Maria della Misericordia, Udine, Italy, ³Presidio Ospedaliero di San Daniele del Friuli, ASS 4 “Medio Friuli, Udine, Italy, ⁴Scienze Cliniche e Molecolari, Università Politecnica delle Marche, Ancona, Italy, ⁵Università Politecnica delle Marche, Ancona, Italy, ⁶Department of Medical and Biological Sciences, Università degli studi di Udine ·, Udine, Italy, ⁷Medicina Interna, Ospedali Riuniti, Ancona, Italy
Background/Purpose: There is evidence that B lymphocytes play a role in the pathogenesis of systemic sclerosis (scleroderma). Stimulatory autoantibodies targeting PDGF receptor and activating normal…
Abstract Number: L16 • 2013 ACR/ARHP Annual Meeting
Kidney Resident B Cells and Plasmacytoid Dendritic Cells in Urine of Systemic Lupus Erythematosus patients
Eric Scott¹, Mary Anne Dooley² and Steve Clarke¹, ¹Microbiology/Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, ²University of North Carolina at Chapel Hill, Chapel Hill, NC
Title: Kidney resident B Cells and plasmacytoid dendritic cells (pDCs) in the urine of systemic lupus erythematosus (SLE) patients. Background/Purpose: Renal involvement remains the principal…
Abstract Number: 1629 • 2013 ACR/ARHP Annual Meeting
Functional Effect Of NR1H3 (LXRA) Promoter Polymorphisms In Korean Patients With Systemic Lupus Erythematosus
Ja-Young Jeon¹, Hyoun-Ah Kim¹, Ju-Yang Jung¹ and Chang-Hee Suh², ¹Department of Rheumatology, Ajou University School of Medicine, Suwon, South Korea, ²Department of Rheumatology, Ajou University Hospital, Suwon, South Korea
Background/Purpose: Liver X receptor alpha (LXRA, NR1H3) and beta (LXRB, NR1H2) can influence macrophage biology by modulation of lipid metabolism and by effects on innate…
Abstract Number: 636 • 2013 ACR/ARHP Annual Meeting
Neutrophil-Mediated Interferon Activation In Systemic Lupus Erythematosus Bone Marrow
Anna Bird¹, Nida Meednu², Javier Rangel-Moreno³, Srilakshmi Yalavarthi⁴, Jennifer Barnard¹, Teresa Owen⁵, Jason S. Knight⁶, Alfred Rabinovich¹, Arumugam Palanichamy², Jane Liesveld⁷, Jason W Bauer⁸, Emily Baechler⁹, Mariana J. Kaplan¹⁰ and Jennifer H. Anolik¹¹, ¹Medicine-Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, ²Medicine- Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, ³Medicine- Allergy, Immunology, and Rheumatology, University of Rochester, Rochester, NY, ⁴University of Michigan Rheumatology, Ann Arbor, MI, ⁵Medicine- Allergy, Immunology, and Rheumatology, University of Rochester Medical Center, Rochester, NY, ⁶Department of Internal Medicine, Division of Rheumatology, University of Michigan, Ann Arbor, MI, ⁷Hematology/Oncology, University of Rochester Medical Center, Rochester, NY, ⁸University of Minnesota, Minneapolis, MN, ⁹Medicine, University of Minnesota, Minneapolis, MN, ¹⁰Systemic Autoimmunity Branch, National Institutes of Health/NIAMS, Bethesda, MD, ¹¹Medicine- Allergy, Immunology and Rheumatology, University of Rochester, Rochester, NY
Background/Purpose: Although SLE is known to be associated with a type I interferon signature in the peripheral blood, the precise site and mechanism of IFN…
Abstract Number: 2319 • 2012 ACR/ARHP Annual Meeting
T Follicular Helper Cell and Regulatory T Cell Frequencies Are Affected by B Cell Depletion in Patients with Granulomatosis with Polyangiitis
Yuan Zhao¹, Jessica Thomas¹, Shirish Sangle², Pamela M.K Lutalo³, Lee Meng Choong⁴, Jennifer R. Tyler¹, Jo Spencer⁵, Timothy Tree⁶ and David P. D'Cruz², ¹Peter Gorer Department of Immunobiology, School of Medicine, King's College London, London, United Kingdom, ²Louise Coote Lupus Unit, Louise Coote Lupus Unit, St Thomas' Hospital, London, United Kingdom, ³Louise Coote Lupus Unit, St Thomas Hospital, London, United Kingdom, ⁴Louise Coote Lupus Unit, St Thomas' Hospital, London, United Kingdom, ⁵Peter Gorer Department of Immunobiology, King's College London, School of Medicine, London, United Kingdom, ⁶national Institute of Health Research Centre at Guy's and St Thomas' NHS Trust, School of Medicine, King's College London, London, United Kingdom
Background/Purpose: Granulomatosis with polyangiitis (GPA, formerly known as Wegener's granulomatosis) is a rare and sometimes fatal systemic autoimmune disease. Anti-neutrophil cytoplasmic antibodies (ANCAs) specific for…
Abstract Number: 1744 • 2012 ACR/ARHP Annual Meeting
Regulatory B Cells Supress the Progression of Fatal Autoimmunity in Lupus-Prone Mice
Yuriy Baglaenko¹, Nan-Hua Chang², Evelyn Pau³ and Joan E. Wither⁴, ¹Immunology, University of Toronto, Toronto, ON, Canada, ²Genetics and Development, Toronto Western Research Institute, Toronto Western Hospital, Toronto, ON, Canada, ³Toronto Western Hospital, University of Toronto, Toronto, ON, Canada, ⁴1E420/Div of Rheumatology, Toronto Western Research Institute, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex multisystem autoimmune disorder characterized by the production of anti-nuclear antibodies (ANA) which form immune complexes and promote…
Abstract Number: 679 • 2012 ACR/ARHP Annual Meeting
ZAP70+ B Cells and Plasmablasts As Markers of Disease Activity and Remission in Systemic LUPUS Erythematosus Nephritis
Elisa Gremese, Barbara Tolusso, Laura Messuti, Marcin Nowik, Silvia Canestri, Luca Petricca, Maria Rita Gigante and Gianfranco Ferraccioli, Division of Rheumatology, Institute of Rheumatology and Affine Sciences, Catholic University of the Sacred Heart, Rome, Italy
Background/Purpose: To analyze differences in B cells subsets distribution in patients with renal systemic lupus erythematosus (SLE). To define possible cellular biomarkers of active nephritis…
Abstract Number: 2668 • 2012 ACR/ARHP Annual Meeting
Interferon and B-Cell Gene Signatures Contribute to Diagnosis of pre-Clinical Rheumatoid Arthritis
Joyce Lubbers¹, Lotte A. van de Stadt², Saskia Vosslamber¹, John G. Wesseling¹, Dirkjan van Schaardenburg² and Cornelis L. Verweij³, ¹Pathology, VU University Medical Center, Amsterdam, Netherlands, ²Jan van Breemen Research Institute | Reade, Amsterdam, Netherlands, ³Pathology and Rheumatology, VU University Medical Center, Amsterdam, Netherlands
Background/Purpose: Diagnosis of the preclinical phase of rheumatoid arthritis (pre-RA) allows timely start of treatment with the potential to prevent disease progression. It is known…
Abstract Number: 2197 • 2012 ACR/ARHP Annual Meeting
Diagnostic Value of Blood B-Cell Subset Profiling and Autoimmunity Markers in Anti-SSA-Negative Sjögren’s Syndrome Patients
Divi Cornec¹, Alain Saraux², Jacques-Olivier Pers³, Sandrine Jousse-Joulin⁴, Yves Renaudineau³, Thierry Marhadour⁵ and Valerie Devauchelle-Pensec⁶, ¹Department of rheumatology, Brest Occidentale University, Brest, France, ²Department of rheumatology and unit of immunology (EA 2216), Brest Occidentale university, Brest, France, ³Unit of immunology, EA 2216, Brest Occidentale University, Brest, France, ⁴Rheumatology/Immunology, CHU de la Cavale Blanche, Brest, France, ⁵Rheumatology, CHU de la Cavale Blanche, Brest, France, ⁶Department of rheumatology and unit of immunology (EA2216), Brest Occidentale university, Brest, France
Background/Purpose: Recently published ACR classification criteria for primary Sjögren’s syndrome (pSS) suggest considering antinuclear antibodies (ANA) titer and rheumatoid factor (RF) positivity in patients negative…

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