Abstracts tagged "citrullination"

Abstract Number: 1848 • ACR Convergence 2020
Identification of Native and Citrullinated Autoantibodies to Psoriasis Related-antigen PsoP27 in Synovial Fluids of Patients with Psoriatic Arthritis
Marina Slobodkin¹, Smadar Gertel¹, Ari Polachek², Victoria Furer³ and Ori Elkayam⁴, ¹Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel, ²Tel Aviv Sourasky Medical Center, Petah-Tikva, Israel, ³Tel Aviv Sourasky Medical Center, Tel Aviv, Israel, ⁴Tel Aviv Sourasky Medical Center,, Tel aviv, Israel
Background/Purpose: Psoriatic arthritis (PsA) is an inflammatory joint disease with no serological biomarkers, hence diagnosis is based on clinical evaluation alone. PsA is closely associated…
Abstract Number: 2043 • ACR Convergence 2020
Identification and Validation of Citrulline Specific TCRs in CD4+T Cells in Rheumatoid Arthritis
Ravi Kumar¹, Niyaz Yoosuf², Sanjay Boddul², Christina Gerstner³, Sara Turcinov⁴, Anatoly Dubnovitsky⁵, Fredrik Wermeling², Karine Chemin⁶ and Vivianne Malmström⁷, ¹Division of Rheumatology, Department of Medicine, Stickholm, Stockholms Lan, Sweden, ²Division of Rheumatology, Department of Medicine, Stockholm, Sweden, ³Division of Rheumatology, Department of Medicine,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden, ⁴Division of Rheumatology, Department of Medicine,Center for Molecular Medicine, Institutet, Stockholm, Sweden, ⁵Karolinska Institutet, Stockholm, ⁶Division of Rheumatology, Department of Medicine, Stockholm, Stockholms Lan, Sweden, ⁷Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: Citrulline (cit) autoimmunity is central in rheumatoid arthritis (RA), including both anti-citrulline protein antibodies (ACPA) and autoreactive CD4+ T cells. While the ACPA are…
Abstract Number: 35 • 2019 ACR/ARP Annual Meeting
Mass Cytometry Identifies Enhanced Histone H3 Citrullination and TNFα Production by CD14 Monocytes in Subjects At-Risk for Future Development of Rheumatoid Arthritis
Yuko Okamoto¹, Elena W.Y. Hsieh ², Ronald P. Schuyler ³, Jennifer Seifert ⁴, Marie Feser ⁵, Jill Norris ⁶, M. Kristen Demoruelle ⁷, Kevin Deane ⁵ and V. Michael Holers ⁴, ¹University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA and Tokyo Women’s Medical University School of Medicine, Department of Rheumatology, Tokyo, Japan, Denver, ²University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA and University of Colorado School of Medicine, Children’s Hospital Colorado, Department of Pediatrics, Section of Allergy & Immunology, Aurora, CO, USA, Denver, ³University of Colorado School of Medicine, Department of Immunology and Microbiology Aurora, CO, USA, Denver, ⁴University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA, Denver, ⁵University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA, Aurora, CO, ⁶Colorado School of Public Health, Department of Epidemiology, Aurora, CO, USA, Denver, ⁷University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA, Aurora
Background/Purpose: Our group previously demonstrated that sputum neutrophils from subjects At-Risk for future rheumatoid arthritis (RA) spontaneously form neutrophil extracellular traps with elevated histone H3…
Abstract Number: 488 • 2019 ACR/ARP Annual Meeting
Citrullinated Antigens with Multiple Citruline Similar Motif Could Be Used for RA Diagnosis
zhiwei ru ¹, Xuedong Chen ², Xiaoyan huang ¹, Jianrong Lou ¹, YongZheng peng ³ and Xiang Yang¹, ¹Leide bioscience Inc, guang zhou, Guangdong, China (People's Republic), ²Southern Medicine University, guang zhou, Guangdong, China (People's Republic), ³Southern Medicine University, guang dong, Guangdong, China (People's Republic)
Background/Purpose: Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by chronic joint inflammation that ultimately leads to joint destruction. Diagnosis of RA is important…
Abstract Number: 991 • 2019 ACR/ARP Annual Meeting
Identification of Citrullinated Peptide Specific T-cells in Humanized Mice Immunized with Citrullinated Peptides
Matthew McElwee¹, Thamotharampillai Dileepan ¹ and Marc Jenkins ¹, ¹University of Minnesota, Minneapolis, MN
Background/Purpose: Seropositive rheumatoid arthritis (RA) is a T-cell mediated disease that is characterized by the presence of antibodies to proteins that have undergone the post-translational…
Abstract Number: 2016 • 2019 ACR/ARP Annual Meeting
Expression of Peptidyl-arginine Deiminases in Peripheral Blood Neutrophils and Its Association with Single Nucleotide Variants in Patients with Rheumatoid Arthritis
Masayoshi Harigai¹, Ryoko Sakai ², Takahiko Sugihara ³ and Akihito Ishigami ⁴, ¹Department of Rheumatology, Tokyo Women's Medical University School of Medicine, Shinjuku-ku, Tokyo, Japan, ²Department of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan, ³Tokyo Medical and Dental University, Tokyo, Japan, ⁴Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
Background/Purpose: Peptidyl-arginine deiminases (PADIs) are enriched in neutrophils and considered to be responsible for citrullination of proteins in vivo. Autoantibody against citrullinated proteins are frequently…
Abstract Number: 2818 • 2019 ACR/ARP Annual Meeting
Differences in the Phenotypic Landscape and Antigen Specificity of CD4+ T Cells Are Present in CCP+ Subjects Before the Onset of Rheumatoid Arthritis
Virginia Muir ¹, Cliff Rims ¹, Kevin Deane ², Jeffrey Carlin ³, Sylvia Posso ¹, Sunil Nagpal ⁴, Navin Rao ⁴, Frédéric Baribaud ⁵, George Vratsanos ⁶, William Robinson ⁷, Gary Firestein ⁸, V. Michael Holers ⁹, Peter Linsley ¹, Eddie James¹ and Jane Buckner ¹, ¹Benaroya Research Institute, Seattle, WA, ²University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA, Aurora, CO, ³Virginia Mason Medical Center, Seattle, WA, ⁴Janssen R&D, Spring House, PA, ⁵Janssen Research & Development, LLC, Spring House, PA, ⁶JNJ, Raritan, NJ, ⁷Stanford University, Palo Alto, CA, ⁸University of California, San Diego, San Diego, ⁹University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA, Denver
Background/Purpose: The “Targeting Immune Responses for Prevention of RA” (TIP-RA) collaboration studies individuals at high risk for developing rheumatoid arthritis (RA) because of serum anti-citrullinated…
Abstract Number: 70 • 2018 ACR/ARHP Annual Meeting
Colocalization of Malondialdehyde-Acetaldehyde Adducts (MAA) and Extracellular Matrix Proteins in Joint and Lung Tissues from Rheumatoid Arthritis Patients
Geoffrey M. Thiele¹, Michael J. Duryee², Jacob D. McGowan¹, Logan M. Duryee¹, Lynell W. Klassen³, James R. O'Dell³, Bryant R. England⁴ and Ted R. Mikuls⁵, ¹University of Nebraska Medical Center, Omaha, NE, ²Internal Medicine Division of Rheumatology, University of Nebraska Medical Center, Omaha, NE, ³Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, ⁴Rheumatology, VA Nebraska-Western Iowa Health Care System & University of Nebraska Medical Center, Omaha, NE, ⁵Internal Medicine, Division of Rheumatology, VA Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Malondialdehyde-acetaldehyde adducts (MAA) are products of oxidative stress that modify self-proteins and stimulate potent cellular and humoral immune responses. We have previously demonstrated…
Abstract Number: 1070 • 2018 ACR/ARHP Annual Meeting
Seroreactivity Against Recombinant Citrullinated Myosin Is Associated with Measures of Diastolic Dysfunction in Patients with Rheumatoid Arthritis
Christian Geier¹, Justyna Fert-Bober², Jon T. Giles¹, Cesare Russo¹, Sabahat Bokhari³, Aylin Tugcu¹, Jenny Van Eyk² and Joan Bathon¹, ¹Columbia University, New York, NY, ²Cedars-Sinai Medical Center, Los Angeles, CA, ³Cardiology, Columbia University, New York, NY
Background/Purpose: Diastolic dysfunction and heart failure with preserved EF are more prevalent in RA. We have previously shown increased staining for citrullinated substrates in necropsied…
Abstract Number: 2049 • 2018 ACR/ARHP Annual Meeting
Expression and Function of a Novel Citrullinated Form of Interleukin 6 in Rheumatoid Arthritis
Chenyang Lu, Ray A. Ohara, Phillip L. Campbell, Yuxuan Du, W. Alexander Stinson, Jonatan Hervoso, Ellen Cealey, David Fox and M. Asif Amin, Division of Rheumatology and Clinical Autoimmunity Center of Excellence, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, Ann Arbor, MI
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory disorder characterized by synovial hyperplasia, progressive joint destruction and the presence of anti-citrullinated peptide antibodies (ACPAs) in…
Abstract Number: 485 • 2017 ACR/ARHP Annual Meeting
Different Citrullination Profiles in Spontaneous Versus Leukemia-Associated Rheumatoid Arthritis
Tal Gazitt¹, Son Hong Nguyen², Ari Salinger², Christian Lood³, Xizhang Sun¹, Lena M. Tanaka¹, David Feith⁴, Jeffrey Ledbetter⁵, Gordon Starkebaum⁶, Thomas Loughran Jr.⁷, Paul R. Thompson² and Keith B. Elkon⁸, ¹Division of Rheumatology, University of Washington, Seattle, WA, ²Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA, ³Division of Rheumatology, Division of Rheumatology, Department of Medicine, University of Washington, Seattle, WA, ⁴Hematology and Oncology, University of Virginia, Charlottesville, VA, ⁵University of Washington, Seattle, WA, ⁶Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, ⁷Hematology Oncology, University of Virginia, Charlottesville, VA, ⁸Division of Rheumatology, Department of Medicine, University of Washington, Seattle, WA
Background/Purpose: Protein citrullination, the post-translational conversion of arginine to citrulline, mediated by peptidylarginine deiminase (PAD) enzymes, is considered a likely mechanism for the stimulation of…
Abstract Number: 837 • 2017 ACR/ARHP Annual Meeting
Rheumatoid Arthritis and Risk for Chronic Obstructive Pulmonary Disease or Asthma Among Women during 38 Years of Prospective Follow-up
Jeffrey A. Sparks¹, Tzu-Chieh Lin², Carlos Camargo³, Medha Barbhaiya⁴, Sara K. Tedeschi⁵, Karen H. Costenbader², Benjamin Raby⁶, Hyon K. Choi⁷ and Elizabeth Karlson⁴, ¹Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ²Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ³Emergency Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, ⁴Rheumatology, Immunology and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁵Division of Rheumatology, Immunology and Allergy,, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁶Pulmonary Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁷Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
Background/Purpose : Rheumatoid arthritis (RA) has been associated with increased risk for chronic obstructive pulmonary disease (COPD) and asthma, but these findings may have been…
Abstract Number: 470 • 2016 ACR/ARHP Annual Meeting
Crucial Involvement of Citrullinated Proteins and ACPA in the Development of Peptide-Glucose-6-Phosphate Isomerase Induced Arthritis
Hoshimi Kawaguchi¹, Isao Matsumoto¹, Hiroshi Ebe¹, Naoto Umeda¹, Yuya Kondo¹, Hiroto Tsuboi² and Takayuki Sumida¹, ¹Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan, ²Division of Clinical Immunology, Doctoral Programs in Clinical Science, Graduated School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
Background/Purpose: Various citrullinated proteins and anti-citrullinated protein antibodies (ACPA) are increased in patients with rheumatoid arthritis (RA). ACPA have high specificity for RA, and are…
Abstract Number: 581 • 2016 ACR/ARHP Annual Meeting
Cell-Mediated Neutrophil Lysis-a Mechanism Promoting Hypercitrullination in Rheumatoid Arthritis?
Tal Gazitt¹, Christian Lood¹, Xizhang Sun², David Feith³, Jeffrey Ledbetter², Gordon Starkebaum¹, Thomas Loughran Jr.⁴ and Keith B. Elkon¹, ¹Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, ²University of Washington, Seattle, WA, ³Hematology and Oncology, University of Virginia, Charlottesville, VA, ⁴Hematology Oncology, University of Virginia, Charlottesville, VA
BACKGROUND/PURPOSE:Protein citrullination, the post-translational conversion of arginine to citrulline, mediated by peptidylarginine deiminase (PAD) enzymes, is considered a likely mechanism for the stimulation of anti-citrullinated…
Abstract Number: 913 • 2016 ACR/ARHP Annual Meeting
Aggregatibacter Actinomycetemcomitans-Induced Hypercitrullination Links Periodontal Infection to Autoimmunity in Rheumatoid Arthritis
Maximilian F. Konig^1,2, Loreto Abusleme³, Jesper Reinholdt⁴, Robert J. Palmer³, Kevon Sampson¹, Ricardo P. Teles⁵, Peter A. Nigrovic⁶, Antony Rosen¹, Jeremy Sokolove⁷, Jon T. Giles⁸, Niki M. Moutsopoulos³ and Felipe Andrade¹, ¹Division of Rheumatology, The Johns Hopkins University School of Medicine, Baltimore, MD, ²Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, ³National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, ⁴Department of Biomedicine, Aarhus University, Aarhus, Denmark, ⁵Department of Periodontology, School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, ⁶Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁷Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, ⁸Columbia University, College of Physicians and Surgeons, Division of Rheumatology, New York, NY
Background/Purpose: A bacterial etiology of rheumatoid arthritis (RA) has been suspected since the beginnings of modern germ theory. Recent studies implicate mucosal surfaces as sites…

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