Abstracts tagged "PAD"

Abstract Number: 965 • 2015 ACR/ARHP Annual Meeting
Crystal Structure of Porphyromonas Gingivalis peptidylarginine Deiminase: Implications for Autoimmunity in Rheumatoid Arthritis
Anna B. Montgomery¹, Jolanta Kopec², Leela Shresha², Marie-Laetitia Thezenasc³, Nicola A. Burgess-Brown², Roman Fischer³, Wyatt W. Yue² and Patrick J. Venables¹, ¹Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom, ²Structural Genomics Consortium, University of Oxford, Oxford, United Kingdom, ³Target Discovery Institute, University of Oxford, Oxford, United Kingdom
Background/Purpose: Anti-citrullinated protein antibodies (ACPA) are the main autoantibody system in rheumatoid arthritis (RA), and due to high sensitivity and specificity testing using the anti-CCP2…
Abstract Number: 1034 • 2015 ACR/ARHP Annual Meeting
Immunomodulation By a Second-Generation Peptidyl Arginine Deiminase Inhibitor Abrogates Collagen-Induced Arthritis in a Therapeutic Protocol
Anne-Marie Quirke¹, Joanna Kawalkowska², Fatemeh Ghari³, Venkataraman Subramaniam⁴, Paul Thompson⁵, Richard O. Williams¹, Nick La Thangue³ and Patrick J. Venables¹, ¹Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom, ²Kennedy Institute for Rheumatology, University of Oxford, Oxford, United Kingdom, ³Department of Oncology, University of Oxford, Oxford, United Kingdom, ⁴Biochemistry and Molecular Pharmacology, University of Massachusetts, Worcester, MA, ⁵University of Massachusetts, Worcester, MA
Background/Purpose: Citrullination is a post translational modification of arginine catalysed by peptidyl arginine deiminases (PADs) and may be important in generating pathogenic autoantibodies to citrullinated…
Abstract Number: 1038 • 2015 ACR/ARHP Annual Meeting
Tumor Necrosis Factor Alpha and Peptidylarginine Deiminase 4 in Lung and Joint Inflammation
Mandar Bawadekar¹, Annette Gendron-Fitzpatrick², Thomas F. Warner³, Lennart K.A. Lundblad⁴, Paul Thompson⁵ and Miriam A. Shelef^1,6, ¹Medicine, University of Wisconsin, Madison, WI, ²Comparative Pathology Laboratory of the Research Animal Resources Center and Pathobiological Sciences, University of Wisconsin, Madison, WI, ³Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, WI, ⁴Medicine, The University of Vermont, Burlington, VT, ⁵University of Massachusetts, Worcester, MA, ⁶Medicine, William S. Middleton Memorial Veterans Hospital, Madison, WI
Background/Purpose: The relationship between lung and joint inflammation in rheumatoid arthritis is poorly understood. About 10% of people with rheumatoid arthritis develop interstitial lung disease…
Abstract Number: 1119 • 2015 ACR/ARHP Annual Meeting
High Resolution Motif Mapping of in Situ Anti-Native-Vimentin Antibodies in Lupus Tubulointerstitial Nephritis
Andrew Kinloch¹, Yuta Asano², Balazs Banfai³, Gregor Dernick³, Carole Henry Dunand⁴, Nirit Mor-Vaknin⁵, Maureen Legendre⁵, David Markovitz⁵, Thomas Schindler⁶ and Marcus R. Clark⁷, ¹University of Chicago, Chicago, IL, ²Committee of immunology, University of Chicago, Chicago, IL, ³Translational Technologies and Bioinformatics, Roche, Basel, Switzerland, ⁴Rheumatology and Knapp Center for Lupus and Immunology Research, University of Chicago, Chicago, IL, ⁵University of Michigan, Ann Arbor, MI, ⁶Roche Innovation Center Basel, Roche, Basel, Switzerland, ⁷Rheumatology and Knapp Center for Lupus Research, University of Chicago, Chicago, IL
Background/Purpose: Severe lupus tubulointerstitial nephritis (TIN) is prognostic of renal failure and characterized by an in situ autoantibody response. By characterizing monoclonal antibodies engineered from…
Abstract Number: 2917 • 2014 ACR/ARHP Annual Meeting
Inhibition of PAD4 Activity and the Formation of Neutrophil Extracellular Traps Via PTPN22, but Not Its Rheumatoid Arthritis-Prone W620 Variant
I-Cheng Ho¹, Hui-Hsin Chang¹, Nishant Dwivedi¹, Hsiao-Wei Tsao¹ and Anthony Nicholas², ¹Medicine, Brigham and Women's Hospital, Boston, MA, ²Neurology, University of Alabama at Birmingham, Birmingham, AL
Background/Purpose: One unique feature of rheumatoid arthritis (RA) is the presence of anti-citrullinated protein antibody (ACPA). Protein citrullination, a process mediated by peptidyl arginine deiminases,…
Abstract Number: 1474 • 2014 ACR/ARHP Annual Meeting
Anti-Peptidyl Arginine Deiminase 4 Antibodies in African-Americans with Rheumatoid Arthritis and Radiographic Scores
Iris Navarro-Millan¹, Andrew Westfall², Erika Darrah^3,4, Antony Rosen⁵, Ted R. Mikuls⁶, Richard Reynolds², Maria I. Danila⁷, Jeffrey R. Curtis² and S. Louis Bridges Jr.^2,8, ¹Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ²University of Alabama at Birmingham, Birmingham, AL, ³Division of Rheumatology, The Johns Hopkins University, Baltimore, MD, ⁴5200 Eastern Ave MFL Bldg Cntr, The Johns Hopkins University, Division of Rheumatology, Baltimore, MD, ⁵Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ⁶Veteran Affairs Nebraska Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, NE, ⁷Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ⁸Division of Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL
Background/Purpose: The presence of serum autoantibodies to peptidyl arginine deiminase 4 (PAD4) have been associated with erosive rheumatoid arthritis (RA) in populations that were composed…
Abstract Number: 2417 • 2013 ACR/ARHP Annual Meeting
Antibodies To Porphyromonas Gingivalis Peptidylarginine Deiminase In Rheumatoid Arthritis Are Not Directed Against The Autocitrullinated Enzyme
Maximilian F. Konig¹, Alizay Paracha², Malini Moni¹, Clifton O. Bingham III¹ and Felipe Andrade¹, ¹Division of Rheumatology, Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ²The University of Oklahoma, Norman, OK
Background/Purpose: Porphyromonas gingivalis (Pg) has received considerable attention by investigators trying to explain the striking association of periodontal disease (PD) and rheumatoid arthritis (RA). Bacterial…
Abstract Number: 2426 • 2013 ACR/ARHP Annual Meeting
Signaling Abnormalities In Neutrophil Granulocytes Of Rheumatoid Arthritis Patients Are Associated With Increased Extracellular Trap Formation and Provide a Basis For The Induction Of Anti-Citrullinated Peptide Antibodies
Chanchal Sur Chowdhury¹, Stavros Giaglis^2,3, Ulrich A. Walker⁴, Andreas Buser⁵, Paul Hasler² and Sinuhe Hahn⁶, ¹Dept. of Biomedicine, Laboratory of Prenatal Diagnostics, University Hospital Basel, Basel, Switzerland, ²Dept. of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland, ³Dept. of Biomedicine, Laboratory of Prenatal Madicine, University Hospital Basel, Basel, Switzerland, ⁴Department of Rheumatology, University Hospital Basel, Basel, Switzerland, Basel, Switzerland, ⁵Division of Hematology; Swiss Red Cross Blood Transfusion Centre, University Hospital Basel, Basel, Switzerland, ⁶Dept. of Biomedicine, Laboratory for Prenatal Medicine, University Hospital Basel, Basel, Switzerland
Background/Purpose: Rheumatoid arthritis (RA) is often associated with anti-citrullinated peptide antibodies (ACPAs) in the serum. While ACPAs have been associated with increased inflammation, joint destruction…
Abstract Number: 2429 • 2013 ACR/ARHP Annual Meeting
Enhanced Responsiveness To Stimulation and Increased Extrusion Of Extracellular Traps By Rheumatoid Arthritis Neutrophil Granulocytes and of Healthy Control Neutrophils to Serum and Synovial Fluid From Rheumatoid Arthritis Patients
Stavros Giaglis^1,2, Chanchal Sur Chowdhury³, Ulrich A. Walker⁴, Andreas Buser⁵, Sinuhe Hahn⁶ and Paul Hasler¹, ¹Dept. of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland, ²Dept. of Biomedicine, Laboratory of Prenatal Madicine, University Hospital Basel, Basel, Switzerland, ³Dept. of Biomedicine, Laboratory of Prenatal Diagnostics, University Hospital Basel, Basel, Switzerland, ⁴Department of Rheumatology, University Hospital Basel, Basel, Switzerland, Basel, Switzerland, ⁵Division of Hematology; Swiss Red Cross Blood Transfusion Centre, University Hospital Basel, Basel, Switzerland, ⁶Dept. of Biomedicine, Laboratory for Prenatal Medicine, University Hospital Basel, Basel, Switzerland
Background/Purpose: Polymorphonuclear granulocytes (PMNs) are the most abundant immune cell population in the synovial fluid in the joints of patients with rheumatoid arthritis (RA) and…
Abstract Number: 2233 • 2013 ACR/ARHP Annual Meeting
Porphyromonas Gingivalis peptidylarginine Deiminase Exacerbates Collagen-Induced Arthritis In C57BL/6 mice
Saba Alzabin^1,2, Anne-Marie Quirke², Elena B. Lugli², Muslima Choudhury^2,3, Peter J. Charles⁴, Richard O. Williams⁵ and Patrick Venables⁶, ¹Epistem Ltd., Manchester, United Kingdom, ²University of Oxford, Kennedy Institute of Rheumatology, Oxford, United Kingdom, ³Kennedy Institute of Rheumatology, London, United Kingdom, ⁴Oxford University, Kennedy Institute of Rheumatology, Oxford, United Kingdom, ⁵Kennedy Institute of Rheumatology, Oxford University, Oxford, United Kingdom, ⁶Kennedy Institute of Rheumatology, Oxford, United Kingdom
Background/Purpose: There is increasing molecular and epidemiological evidence linking Porphyromonas gingivalis to RA. P. gingivalis is unique amongst periodontal pathogens in possessing a citrullinating enzyme…
Abstract Number: 2224 • 2013 ACR/ARHP Annual Meeting
Tumor Necrosis Factor Alpha Induces Anti-Citrullinated Protein Antibodies and Arthritis In Part Through Peptidyl Arginine Deiminase 4
Miriam A. Shelef¹, Jeremy Sokolove², Catriona Wagner³, Eric Sackmann⁴, Thomas Warner⁵, David Beebe⁴, William H. Robinson⁶ and Anna Huttenlocher⁷, ¹Medicine, Univ of Wisconsin Schl of Med, Madison, WI, ²VA Palo Alto Healthcare System and Stanford University, Palo Alto, CA, ³VA Palo Alto Heatlh Care System and Stanford University, Palo Alto, CA, ⁴Materials Science Program and Department of Biomedical Engineering, University of Wisconsin, Madison, WI, ⁵Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, WI, ⁶VA Palo Alto Health Care System and Stanford University, Palo Alto, CA, ⁷Dept of Pediatrics and MMI, Univ of Wisconsin Schl of Med, Madison, WI
Background/Purpose: Rheumatoid arthritis is an autoimmune, destructive arthritis characterized by anti-citrullinated protein antibodies (ACPAs) and high levels of inflammatory cytokines like tumor necrosis factor alpha…
Abstract Number: 1888 • 2013 ACR/ARHP Annual Meeting
Transcriptional Regulation Of Peptidylarginine Deiminase Type IV: Implications For Rheumatoid Arthritis
Ali Abbas¹, Kevin Le¹, Virginia Pimmett¹, David A. Bell², Ewa Cairns² and Rodney P. DeKoter¹, ¹Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada, ²Medicine, Division of Rheumatology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
Background/Purpose: High titers of anti-citrullinated protein/peptide antibodies (ACPA) have been detected in sera of rheumatoid arthritis (RA) patients, implicating citrullinating enzymes in the pathogenesis of…

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].