Abstracts tagged "B cells"

Abstract Number: 2814 • 2019 ACR/ARP Annual Meeting
Methionine Commits Immunometabolism and Epigenetic Regulation of BACH2 Loci in B Cells, Resulting in Biases Toward Plasmablast Differentiation in the Pathogenesis of SLE
Mingzeng Zhang¹, Shigeru Iwata ¹, Maiko Hajime ¹, Naoaki Ohkubo ¹, Yasuyuki Todoroki ², Hiroko Miyata ², Jie Fan ², Shingo Nakayamada ¹, Kaoru Yamagata ¹ and Yoshiya Tanaka ³, ¹The First Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan, Kitakyushu, Japan, ²The First Department of Internal Medicine, University of Occupational & Environmental Health Kitakyushu, Japan, Kitakyushu, Japan, ³University of Occupational and Environmental Health Japan, Kitakyushu, Japan
Background/Purpose: Amino acids play an important role in various metabolic processes. However, the role of amino acid metabolism in the regulation of human B cell…
Abstract Number: 2815 • 2019 ACR/ARP Annual Meeting
Lower IL-4R in IgD+ Naïve B Cells Is a Pre-disposing Factor for Development of T-bet+ DN2 B Cells in Systemic Lupus Erythematosus
John Mountz¹, Min Gao ², Qi Wu ³, PingAr Yang ², Alex Essman ⁴, Oluwagbemiga Ojo ⁴, Shanrun Liu ², Jake Chen ², Iñaki Sanz ⁵, W. Winn Chatham ² and Hui-Chen Hsu ², ¹University of Alabama at Birmingham and Birmingham VAMC, Birmingham, AL, ²University of Alabama at Birmingham, Birmingham, ³University of Alabama at Birmingham, Birmingham, AL, ⁴Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, ⁵Emory University, ATLANTA, GA
Background/Purpose: Studies to date have primarily focused on stimulators that are overexpressed and activate B cells in SLE subjects. Factors that can maintain B cells…
Abstract Number: 2819 • 2019 ACR/ARP Annual Meeting
The Transcription Factor MAF Controls the Ability of T Peripheral Helper (Tph) Cells to Help B Cells
Alexandra Bocharnikov¹, Vanessa Wacleche ¹, Ye Cao ¹ and Deepak Rao ², ¹Brigham and Women's Hospital, Boston, ²Brigham and Women's Hospital, Boston, MA
Background/Purpose: Pathologic T cell-B cell interactions are hallmark features of many autoimmune diseases. PD-1hi CXCR5- T peripheral helper (Tph) cells are B cell-helper T cells…
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…
Abstract Number: 2050 • 2018 ACR/ARHP Annual Meeting
B and T Cell Phenotypes of First Degree Relatives of RA Patients in an Indigenous North American Cohort
Stacy Tanner¹, Christine Zhang², Irene Smolik³, Aaron Marshall² and Hani El-Gabalawy⁴, ¹Rheumatology, University of Manitoba, Winnipeg, MB, Canada, ²Immunology, University of Manitoba, Winnipeg, MB, Canada, ³Arthritis Center, University of Manitoba, Winnipeg, MB, Canada, ⁴University of Manitoba, Winnipeg, MB, Canada
Background/Purpose: First degree relatives (FDR) of patients with RA are known to have approximately 4 times increased risk of developing RA and prevalence of RA…
Abstract Number: 8 • 2018 ACR/ARHP Annual Meeting
Repertoire Studies in Rheumatoid Arthritis Reveal B-Cell Distortions and Baseline Shifts in Unmutated IgG
Yan Wang¹, Katy A. Lloyd², Sunithi Gunasekera³, Camilla Eriksson³, Daniel Ramsköld², Karin Lundberg⁴, Per-Johan Jakobsson¹, Ulf Göransson³, Vivianne Malmström¹ and Caroline Grönwall⁵, ¹Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, ³Division of Pharmacognosy, Dept. of Medicinal Chemistry, Uppsala University, Uppsala, Sweden, ⁴Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁵Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: The immunological hallmark of rheumatoid arthritis (RA) is autoreactivity to citrullinated proteins and rheumatoid factor activity. Hence, the adaptive immune system and B cells…
Abstract Number: 41 • 2018 ACR/ARHP Annual Meeting
TAS5315, a Novel Bruton’s Tyrosine Kinase Inhibitor, Improves Bone Strength in Mouse Model for Rheumatoid Arthritis
Ryuusuke Kaneko, Fumihito Hosoi, Satoru Iguchi, Hiroaki Hayashi, Yohei Yoshiga, Yoshinori Nakachi, Daichi Akasaka, Kenji Tanaka, Teruhiro Utsugi, Eiji Sasaki and Yoshikazu Iwasawa, TAIHO PHARMACEUTICAL CO., LTD., Tsukuba, Japan
Background/Purpose: The erosions of bone and cartilage are a cardinal feature of rheumatoid arthritis (RA) and associated with disease severity and poor functional outcome. Although…
Abstract Number: 2055 • 2018 ACR/ARHP Annual Meeting
Laser Capture Microdissection to Interrogate B Cells in RA Synovial Tissue
Javier Rangel-Moreno¹, Nida Meednu², Andrew McDavid³, Linda Callahan⁴, V. Kaye Thomas⁴, Jennifer Albrecht², Edward F. DiCarlo⁵, Dana Orange⁶, Susan M. Goodman⁶, Laura T. Donlin⁷ and Jennifer Anolik², ¹Medicine- Allergy, Immunology, and Rheumatology, University of Rochester Medical Center, Rochester, NY, ²Medicine- Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, ³Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY, ⁴University of Rochester Medical Center, Rochester, NY, ⁵Laboratory Medicine, Hospital for Special Surgery, New York, NY, ⁶Hospital for Special Surgery, New York, NY, ⁷Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
Background/Purpose: Rheumatoid arthritis is an autoimmune disease characterized by immune cell infiltration in synovial tissue and progressive bone damage. B cells are abundant in the…

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