Abstracts tagged "Autoantibody(ies)"

Abstract Number: 0017 • ACR Convergence 2021
Lessons Learnt from Associations Between Anti-modified Protein Antibodies and Risk Factors: Human Leukocyte Antigen – Shared Epitope Alleles Solely Associate with Anti-citrullinated Protein Antibodies
Tineke J van wesemael, Annemarie L. Dorjee, Tom WJ Huizinga, Annette H.M van der Helm-van Mil, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Rheumatoid arthritis (RA) is characterized by the presence of auto-antibodies to post translationally modified proteins (anti-modified protein antibodies (AMPA)): anti-citrullinated protein antibodies (ACPA), anti-carbamylated…
Abstract Number: 0288 • ACR Convergence 2021
Demographic, Lifestyle, and Clinical Risk Factors for Rheumatoid Arthritis-Associated Bronchiectasis: Role of RA-related Autoantibodies
Gregory McDermott¹, Ritu Gill², Staci Gagne³, Suzanne Byrne³, Weixing Huang³, Lauren Prisco⁴, Alessandra Zaccardelli³, Lily Martin³, Nancy Shadick⁵, Paul Dellaripa³, Tracy Doyle⁶ and Jeffrey Sparks³, ¹Brigham and Women's Hospital, Brookline, MA, ²Beth Israel Deaconess Medical Center, Boston, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Brigham and Women's Hospital, Pound Ridge, MA, ⁵Brigham & Women's Hospital, Boston, MA, ⁶Brigham and Women's Hospital, West Roxbury, MA
Background/Purpose: Bronchiectasis is a known extra-articular manifestation of rheumatoid arthritis (RA) characterized by bronchial damage and excessive mucus production that predispose patients to risk of…
Abstract Number: 0704 • ACR Convergence 2021
Anti-SSa/SSb and Ro52 and Interstitial Lung Disease in Idiopathic Inflammatory Myopathies
Sonali Narain¹, Ana Valle², Maria-Louise Barilla-Labarca¹ and Galina Marder³, ¹Northwell Health, Great Neck, NY, ²Montefiore Medical Center/Albert Einstein College of Medicine, New York, NY, ³Division of Rheumatology, Department of Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY
Background/Purpose: In idiopathic inflammatory myopathies (IIM), SSa/SSb and Ro52 antibodies are frequently reported, especially in association with interstitial lung disease (ILD). However, limited literature exists…
Abstract Number: 1430 • ACR Convergence 2021
Autoantibodies Stabilize Neutrophil Extracellular Traps in COVID-19
Yu Zuo¹, Srilakshmi Yalavarthi¹, Sherwin Navaz¹, Claire Hoy¹, Alyssa Harbaugh¹, Kelsey Gockman¹, Melanie Zuo¹, Jacqueline Madison¹, Hui Shi¹, Yogendra Kanthi² and Jason Knight¹, ¹University of Michigan, Ann Arbor, MI, ²NHLBI, NIH, Bethesda, MD
Background/Purpose: The release of neutrophil extracellular traps (NETs) by hyperactive neutrophils is recognized to play an important role in the thromboinflammatory milieu inherent to severe…
Abstract Number: 1916 • ACR Convergence 2021
Antibodies to Malondialdehyde-Acetaldehyde (MAA) Modified Proteins Predict Incident Rheumatoid Arthritis-Associated Interstitial Lung Disease
Bryant England¹, Geoffrey Thiele¹, Dana Ascherman², Michael Duryee¹, Carlos Hunter¹, Yangyuna Yang¹, Punyasha Roul¹, Harlan Sayles¹, Andreas Reimold³, Gail Kerr⁴, Joshua Baker⁵, Jill Poole¹ and Ted Mikuls¹, ¹University of Nebraska Medical Center, Omaha, NE, ²University of Pittsburgh, Pittsburgh, PA, ³University of Texas – Southwestern Medical Center/Dallas Veterans Affairs Medical Center (VAMC), Dallas, TX, ⁴Washington D.C., Veterans Affairs Medical Center (VAMC)/Georgetown and Howard Universities, Washington, DC, ⁵University of Pennsylvania, Philadelphia, PA
Background/Purpose: Because interstitial lung disease (ILD) causes substantial morbidity and mortality in rheumatoid arthritis (RA), there is a need for methods to facilitate early identification…
Abstract Number: 0028 • ACR Convergence 2021
Evolution of Anti-modified Protein Antibody Responses Can Be Driven by Consecutive Exposure to Different Post-translational Modifications
Mikhail Volkov, Arieke Kampstra, Karin van Schie, Tom WJ Huizinga, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Besides anti-citrullinated protein antibodies (ACPA), rheumatoid arthritis patients (RA) often display autoantibody reactivities against other post-translationally modified (PTM) proteins, more specifically carbamylated and acetylated…
Abstract Number: 0293 • ACR Convergence 2021
Increased Prevalence of Scleroderma Specific Autoantibodies in Seropositive Rheumatoid Arthritis with Lung Involvement
Vasiliki Koulouri¹, Kyriaki Tavernaraki², Mayra Giannelou³ and Clio Mavragani¹, ¹National and Kapodistrian University of Athens, Athens, Greece, ²Imaging and Interventional Radiology, Sotiria General and Chest Diseases Hospital, Athens, Greece, ³Department of Rheumatology, General Hospital of Athens "G. Gennimatas", Athens, Greece
Background/Purpose: To evaluate the prevalence of scleroderma (SSc) specific and anti-Ro52 autoantibodies in seropositive rheumatoid arthritis (RA) patients with lung involvement.Methods: Sera from 67 seropositive…
Abstract Number: 0707 • ACR Convergence 2021
Association of Pneumomediastinum with Poor Prognosis in Patients with Myositis-Associated Interstitial Lung Disease
Kazuki Hirano¹, Azusa Kojima¹, Akira Ishii¹, Mai Sugiyama¹, Yuto Izumi¹, Noriko Sasaki², Yuji Hosono¹, Chiho Yamada¹ and Shinji Sato³, ¹Tokai University School of Medicine, Isehara, Japan, ²tokai university, sagamihara-city, Japan, ³Tokai University, Isehara, Japan
Background/Purpose: Pneumomediastinum is an important complication in patients with myositis-associated interstitial lung disease (ILD). Patients with myositis and ILD who had pneumomediastinum during the disease…
Abstract Number: 1481 • ACR Convergence 2021
Malondialdehyde-acetaldehyde Antibodies Occur in Systemic Lupus Erythematosus and Associate Specifically with Neuropsychiatric Involvement
Rory Monahan, Michelle van Beukel, Nicole Borggreven, Margreet Kloppenburg, Tom WJ Huizinga, Gerda Steup-Beekman and Leendert Trouw, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Systemic lupus erythematosus (SLE) is a heterogenous autoimmune disease characterized by a global loss of self-tolerance. Although autoantibodies are an important hallmark of SLE,…
Abstract Number: 1932 • ACR Convergence 2021
Identifying Clusters of Longitudinal Autoantibody Profiles Associated with Systemic Lupus Erythematosus Disease Outcomes
May Choi¹, Irene Chen², Ann Clarke³, Marvin Fritzler³, Katherine Buhler³, Murray Urowitz⁴, John Hanly⁵, Caroline Gordon⁶, Yvan St.Pierre⁷, Sang-Cheol Bae⁸, Juanita Romero-Diaz⁹, Francisco Sanchez-Guerrero¹⁰, Sasha Bernatsky¹¹, Daniel Wallace¹², David Isenberg¹³, Anisur Rahman¹⁴, Joan Merrill¹⁵, Paul R Fortin¹⁶, Dafna Gladman¹⁷, Ian N. Bruce¹⁸, Michelle Petri¹⁹, Ellen Ginzler²⁰, Mary Anne Dooley²¹, Rosalind Ramsey-Goldman²², Susan Manzi²³, Andreas Jnsen²⁴, Graciela Alarcn²⁵, Ronald van Vollenhoven²⁶, Cynthia Aranow²⁷, Meggan Mackay²⁷, Guillermo Ruiz-Irastorza²⁸, S Sam Lim²⁹, Murat Inanc³⁰, Kenneth Kalunian³¹, Sren Jacobsen³², Christine Peschken³³, Diane Kamen³⁴, Anca Askanase³⁵, David Sontag² and Karen Costenbader³⁶, ¹Brigham and Women's Hospital | University of Calgary, Calgary, AB, Canada, ²Massachusetts Institute of Technology, Cambridge, MA, ³University of Calgary, Calgary, AB, Canada, ⁴Center for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, University of Toronto, Lupus Clinic, Toronto, ON, Canada, ⁵Dalhousie University, Halifax, NS, Canada, ⁶Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom, ⁷Research Institute of the McGill University Health Centre, Montréal, QC, Canada, ⁸Hanyang University Medical Center, Seoul, Republic of Korea, ⁹Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Ciudad de México, Federal District, Mexico, ¹⁰University Health Network/Sinai Health system, Toronto, ON, Canada, ¹¹McGill University, Montréal, QC, Canada, ¹²Cedars-Sinai, Los Angeles, CA, ¹³Centre for Rheumatology, University College London, London, United Kingdom, ¹⁴University College London, London, United Kingdom, ¹⁵Oklahoma Medical Research Foundation, Oklahoma City, OK, ¹⁶CHU de Quebec - Universite Laval, Québec City, QC, Canada, ¹⁷Schroeder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Toronto, ON, Canada, ¹⁸University of Manchester, Manchester, United Kingdom, ¹⁹Johns Hopkins University School of Medicine, Baltimore, MD, ²⁰SUNY Downstate Health Sciences University, Brooklyn, NY, ²¹Raleigh Neurology Associates, Chapel Hill, NC, ²²Northwestern University, Chicago, IL, ²³Allegheny Health Network, Wexford, PA, ²⁴Lund University, Lund, Sweden, ²⁵University of Alabama at Birmingham, Birmingham, AL, ²⁶Department of Rheumatology and Clinical Immunology, Amsterdam University Medical Center, Amsterdam Rheumatology Center, Amsterdam, Netherlands, ²⁷Feinstein Institutes for Medical Research, Manhasset, NY, ²⁸Hospital Universitario Cruces, University of the Basque Country, Bizkaia, Spain, ²⁹Department of Medicine, Division of Rheumatology, Emory University School of Medicine, Atlanta, GA, ³⁰Istanbul University Faculty of Medicine, Istanbul, Turkey, ³¹UC San Diego, La Jolla, CA, ³²Copenhagen Lupus and Vasculitis Clinic, Centre for Rheumatology and Spine Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark, ³³University of Manitoba, Winnipeg, MB, Canada, ³⁴Medical University of South Carolina, Charleston, SC, ³⁵Columbia University Medical Center, New York, NY, ³⁶Brigham and Women's Hospital, Belmont, MA
Background/Purpose: Prior studies of SLE clusters based on autoantibodies have utilized cross-sectional data from single centers. We applied clustering techniques to longitudinal and comprehensive autoantibody…
Abstract Number: 0032 • ACR Convergence 2021
IL-40: A New B-cell Associated Cytokine Up-regulated in Rheumatoid Arthritis Decreases Following the Rituximab Therapy and Correlates with Disease Activity, Autoantibodies and NETosis
Adela Navratilova¹, Lucie Andrés Cerezo¹, Hana Hulejová², Viktor Bečvář², Michal Tomcik³, Dana Tegzova², Martina Olejárová¹, David Veigl⁴, Karel Pavelka³, Jiri Vencovsky² and Ladislav Senolt³, ¹Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²Institute of Rheumatology, Prague, Czech Republic, ³Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic, ⁴First Orthopaedic Clinic, 1st Faculty of Medicine, Charles University, Prague, Czech Republic, Prague, Czech Republic
Background/Purpose: Interleukin 40 (IL-40) is recently identified B cell - associated cytokine implicated in humoral immune responses and in B cell development and homeostasis. As…
Abstract Number: 0306 • ACR Convergence 2021
Allergic Disorders in Primary Sjögren’s Syndrome Compared with Rheumatoid Arthritis
Misako Higashida-Konishi¹, Keisuke Izumi², Tatsuya Shimada³, Satoshi Hama⁴, Mitsuhiro Akiyama⁵, Hisaji Oshima⁴ and Yutaka Okano⁶, ¹Department of Connective Tissue Diseases, National Hospital Organization Tokyo Medical Center, Meguroku, Japan, ²Department of Connective Tissue Diseases, National Hospital Organization Tokyo Medical Center/Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan, ³Department of Connective Tissue Diseases, National Hospital Organization Tokyo Medical Center/ Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, ⁴Department of Connective Tissue Diseases, National Hospital Organization Tokyo Medical Center, tokyo, Japan, ⁵Department of Connective Tissue Diseases, National Hospital Organization Tokyo Medical Center/ Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Palo Alto, CA, ⁶Department of Connective Tissue Diseases, National Hospital Organization Tokyo Medical Center, Kawasaki, Japan
Background/Purpose: Allergic disorders are occasionally seen in patients with primary Sjögren's syndrome (pSS) [1]. Risk factors are unclear for allergic disorders.We aimed to compare the…
Abstract Number: 0713 • ACR Convergence 2021
MDA5 Helicase Domains Identified as the Main Targets of Anti-MDA5 Autoantibodies in European Dermatomyositis Patients
Eveline Van Gompel¹, Catia Cerqueira², Karine Chemin³, Begum Horuluoglu¹, Angeles Shunashy Galindo-Feria⁴, khaled amara⁵, Edvard Wigren⁶, Susanne Gräslund⁶, Ellen De Langhe⁷, Olivier Benveniste⁸ and Ingrid E Lundberg⁶, ¹Karolinska Institutet, Stockholm, Sweden, ²4Dcell, Montreuil, France, ³Division of Rheumatology, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden, ⁴Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ⁵Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden, ⁶Karolinska Institutet, Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden, Stockholm, Sweden, ⁷KU Leuven, Leuven, Belgium, ⁸UPMC, Paris, France
Background/Purpose: The presence of anti-melanoma differentiation associated protein 5 (MDA5) autoantibodies in myositis patients is associated with mucocutaneous ulcerations, (rapidly progressing) interstitial lung disease (RPILD),…
Abstract Number: 1489 • ACR Convergence 2021
Identification of Mitochondrial Antigens Targeted by Autoantibodies in Systemic Lupus Erythematosus (SLE)
Yann BECKER¹, Jean-Philippe Gagné², Anne-Sophie Julien³, Tania Lévesque¹, Nadine Gougeard⁴, Vicente Rubio⁴, François-Michel Boisvert⁵, Dominique Jean⁶, Guy Poirier², Paul R Fortin⁷ and Éric Boilard¹, ¹Centre de Recherche ARThrite, Université Laval, Québec City, QC, Canada, ²Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval, Québec City, QC, Canada, ³Département de mathématiques et statistique, Université Laval, Québec, QC, Canada, ⁴Structural Enzymopathology Unit, Instituto de Biomedicina de Valencia, Consejo Superior de Investigaciones Científicas, Valencia, Spain, ⁵Department of Anatomy and Cell Biology, Université de Sherbrooke, Sherbrooke, QC, Canada, ⁶Department of Anatomy and Cell Biology, Université de Sherbrooke, Sherbrooke, Canada, ⁷CHU de Quebec - Universite Laval, Québec City, QC, Canada
Background/Purpose: Mitochondria are organelles that possess several bacterial features such as a double-stranded genome with hypomethylated CpG islets, formylated proteins, and a double membrane composed…
Abstract Number: 0037 • ACR Convergence 2021
Identification and Validation of Four Circulating Autoantibodies Associated with the ACPA Status in Early Rheumatoid Arthritis
Lucía Lourido¹, Cristina Ruiz-Romero², Lidia Collado¹, Monika Hansson³, Lars Klareskog⁴, Ronald Sjöberg⁵, Elisa Pin⁵, Peter Nilsson⁵ and Francisco Blanco-García⁶, ¹Unidad de Proteómica. Grupo de Investigación de Reumatología (GIR). Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC). C/ As Xubias de Arriba 84, 15006, A Coruña, España., A Coruña, Spain, ²Unidad de Proteómica. Grupo de Investigación de Reumatología (GIR). Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC). C/ As Xubias de Arriba 84, 15006, A Coruña, España.Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN). Av. Monforte de Lemos, 3-5. Pabellón 11, 28029, Madrid, España., A Coruña, Spain, ³Division for Rheumatology, Karolinska Institutet, Stockholm, Sweden, ⁴Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ⁵Division of Affinity Proteomics, Department of Protein Science, KTH Royal Institute of Technology & SciLifeLab, Stockholm, Sweden, ⁶Unidad de Proteómica. Grupo de Investigación de Reumatología (GIR). Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC). C/ As Xubias de Arriba 84, 15006, A Coruña, España.Universidade da Coruña (UDC), Grupo de Investigación de Reumatología y Salud (GIR-S). Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Facultad de Fisioterapia, Campus de Oza, 15008, A Coruña, España., A Coruña, Spain
Background/Purpose: The presence of anti-citrullinated protein antibodies (ACPAs) is a highly specific hallmark of rheumatoid arthritis (RA), that is present also in early disease. However,…

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