Abstracts tagged "Autoantibody(ies)"

Abstract Number: 0155 • ACR Convergence 2021
The Additional Value of MRI in Diagnosis of Rheumatoid Arthritis in Undifferentiated Arthritis Patients
Nikolet den Hollander¹, Marloes Verstappen¹, Navkiran Sidhu¹, Elise van Mulligen², Monique Reijnierse¹ and Annette H.M van der Helm-van Mil¹, ¹Leiden University Medical Center, Leiden, Netherlands, ²Erasmus Medical Center, Rotterdam, Netherlands
Background/Purpose: Identifying patients that will develop rheumatoid arthritis (RA) among those presenting with undifferentiated arthritis (UA) remains a clinical dilemma. According to EULAR recommendations magnetic…
Abstract Number: 0687 • ACR Convergence 2021
Clinical Features and Prognosis of a Large North American Cohort of Adult MDA5+ Dermatomyositis
Christopher Mecoli¹, Eleni Tiniakou², William Kelly², Jemima Albayda², Julie Paik², Brittany Adler², Andrew Mammen³, Cheng Ting Lin¹, Sonye Danoff⁴, Livia Casciola-Rosen⁵ and Lisa Christopher-Stine², ¹Johns Hopkins University School of Medicine, Baltimore, MD, ²Johns Hopkins University, Baltimore, MD, ³National Institutes of Health, Bethesda, MD, ⁴Johns Hopkins Medicine, Baltimore, MD, ⁵Johns Hopkins, Baltimore, MD
Background/Purpose: We describe a single-center North American adult cohort of MDA5-positive DM, with emphasis on the subgroup of patients that experience drug-free long-term remission. Methods:…
Abstract Number: 1101 • ACR Convergence 2021
Atypical Pulmonary Radiographic Findings May Help Identify Patients with Usual Interstitial Pneumonia and Autoimmune Features
Fredeswinda Romero Bueno¹, Carmelo Palacios¹, Maria Jesus Rodriguez Nieto¹, Maria Tello Lasheras¹, Angel Rodriguez Leon², Maria Carmen Vegas Sanchez¹, Gabriel Herrero-Beaumont³ and Olga Sanchez Pernaute¹, ¹University Hospital "Fundación Jimenez Diaz", Madrid, Spain, ²Autonoma University of Madrid, Madrid, Spain, ³University Hospital "Fundacion Jimenez Diaz", Madrid, Spain
Background/Purpose: Once specific etiologic factors have been ruled out, the majority of patients with chronic interstitial pneumonia (IP) can be classified as idiopathic pulmonary fibrosis…
Abstract Number: 1531 • ACR Convergence 2021
New-Onset IgG Autoantibodies in Hospitalized Patients with COVID-19
Sarah Chang¹, Allan Feng¹, Wenzhao Meng², Sokratis Apostolidis², Elisabeth Mack³, Maja Artandi¹, Linda Barman¹, Kate Bennett⁴, Saborni Chakraborty¹, Iris Chang¹, Peggie Cheung¹, Sharon Chinthrajah¹, Shaurya Dhingra¹, Evan Do¹, Amanda Finck⁴, Andrew Gaano⁴, Reinhard Gessner⁵, Heather Giannini⁴, Joyce Gonzalez⁴, Sarah Greib³, Margrit Gündisch³, Alex Hsu¹, Alex Kuo¹, Monali Manohar¹, Rong Mao¹, Indira Neeli⁶, Andreas Neubauer³, Oluwatosin Oniyide², Abigail Powell¹, Rajan Puri¹, Harald Renz³, Jeffrey Schapiro⁷, Payton Weidenbacher¹, Rich Wittman¹, Neera Ahuja¹, Ho-Ryun Chung³, Pras Jagannathan¹, Judith James⁸, Peter Kim¹, Nuala Meyer², Kari Nadeau¹, Marko Radic⁶, William Robinson⁹, Upinder Singh¹, Taia Wang¹, John Wherry⁴, Chrysanthi Skevaki³, Eline Luning Prak⁴ and Paul Utz¹⁰, ¹Stanford, San Francisco, ²University of Pennsylvania, Philadelphia, PA, ³Marburg University, Marburg, Germany, ⁴UPenn, Philadelphia, PA, ⁵University of Marburg, Marburg, Germany, ⁶UTHSC, Memphis, TN, ⁷KPNC Regional Laboratory, Berkeley, ⁸Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁹Stanford University, Palo Alto, CA, ¹⁰Stanford University, Stanford, CA
Background/Purpose: Coronavirus Disease 2019 (COVID-19), caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), is associated with a wide range of clinical manifestations, including autoimmune features…
Abstract Number: 0010 • ACR Convergence 2021
Relaxed Peripheral Tolerance Drives Broad de Novo Autoreactivity in Severe COVID-19
Matthew Woodruff¹, Richard Ramonell², Ankur Singh Saini², Mark Rudolph³, F. Eun-Hyung Lee² and Iñaki Sanz⁴, ¹Emory University, Decatur, GA, ²Emory University, Atlanta, GA, ³Exagen Inc., Vista, CA, ⁴Emory University School of Medicine, Atlanta, GA
Background/Purpose: An emerging feature of COVID-19 is the identification of autoreactivity in patients with severe disease that may contribute to disease pathology, however the origins…
Abstract Number: 0156 • ACR Convergence 2021
Tenosynovitis Detected by Power Doppler Ultrasound: A Differential Feature of Patients with Seronegative Rheumatoid Arthritis
Einer Sanchez Prado¹, Santiago Ruta², Laura Cuellar¹, Sebastian Magri³ and Rodrigo Garcia Salinas⁴, ¹Hospital Italiano La Plata, La Plata, Argentina, ²Hospital San Martin de La Plata, La Plata, Argentina, ³Hospital Italiano La Plata, La Plata, ⁴Hospital Italiano de La Plata, La Plata, Argentina
Background/Purpose: It is known that seronegative rheumatoid arthritis has different characteristics from seropositive RA. Objectives: To estimate the frequency of rheumatoid arthritis (RA) in a…
Abstract Number: 0696 • ACR Convergence 2021
Anti-Transcriptional Intermediary Factor 1-gamma Antibodies in Dermatomyositis with and Without Cancer – A Longitudinal Study
Lara Dani¹, Sandra Selickaja², Angeles Shunashy Galindo-Feria³, John Svensson⁴, Paulius Venalis⁵, Dag Leonard⁶, Malin Hemberg⁷, Balsam Hanna⁸, Ingrid E Lundberg⁹ and Marie Holmqvist⁴, ¹Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden, ²State Research Institute for Innovative Medicine and Vilnius university hospital Santaros Klinikos, Vilnius, Lithuania, ³Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ⁴Karolinska Institutet, Stockholm, Sweden, ⁵Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, ⁶Department of Rheumatology, Uppsala University, Uppsala, Sweden, ⁷Rheumatology Unit, Falu Lasarett, Falun, Sweden, ⁸Department of Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden, ⁹Karolinska Institutet, Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden, Stockholm, Sweden
Background/Purpose: To longitudinally follow the levels of anti- transcriptional intermediary factor (TIF)1-gamma autoantibodies in patients with dermatomyositis with and without cancer.Methods: We identified sera from…
Abstract Number: 1377 • ACR Convergence 2021
Assessment of Autoantibodies and Clinical Associations in SSc Patients with ANA Positivity & Negative for Prototypic Autoantibodies
Karen Kruzer¹, Roberta G Marangoni¹, Ilana Heckler², Aya Elhage², Varga John³, Monique Hinchcliff⁴, Mary Carns⁵, Kathleen Aren⁵, Amy Wielgosz¹, Marc Nuzzo⁶, Iswariya Venkataraman² and Benjamin Korman¹, ¹University of Rochester, Rochester, NY, ²EUROIMMUN US, Mountain Lakes, NJ, ³University of Michigan, Ann Arbor, MI, ⁴Yale School of Medicine, Westport, CT, ⁵Northwestern University Division of Rheumatology, Chicago, IL, ⁶Division of Allergy, Immunology, and Rheumatology, School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY
Background/Purpose: Systemic sclerosis (SSc) is a clinically heterogenous disease typically characterized by a positive ANA (ANA+), and prototypical antibodies including anti-centromere, anti-topoisomerase, and anti-RNA polymerase…
Abstract Number: 1535 • ACR Convergence 2021
Low Incidence and Transient Elevation of Autoantibodies Post mRNA COVID-19 Vaccination
Rebecca Blank¹, Rebecca Haberman², Rochelle Castillo², marie Samanovic³, Parvathy Vasudevanpillai Girija⁴, Paula Rackoff¹, Gary Solomon⁵, Natalie Azar⁶, Pamela Rosenthal⁷, Peter Izmirly⁴, Jonathan Samuels⁸, Brian Golden⁹, Soumya Reddy⁷, Steven B. Abramson⁴, Mark Mulligan³ and Jose Scher⁴, ¹New York University, New York, NY, ²NYU Langone Health, New York, NY, ³NYU Grossman School of Medicine, New York, NY, ⁴New York University School of Medicine, New York, NY, ⁵NYU Langone School of Medicine, Hartsdale, NY, ⁶NYU Langone, New York, NY, ⁷NYU School of Medicine, New York, NY, ⁸NYU Langone, Rye Brook, NY, ⁹NYU Langone Medical Center - NYU Hospital for Joint Diseases, New York, NY
Background/Purpose: Recent studies have shown high rates of autoantibody production in patients hospitalized with COVID-19, including antinuclear antibodies (ANA) and antibodies associated with antiphospholipid syndrome.…
Abstract Number: 0012 • ACR Convergence 2021
A Novel Mechanism Linking Mucosal Bacteria with Autoantibody Responses in RA: Acetylated Bacterial Lysate as a Model Antigen
Mikhail Volkov, Arieke Kampstra, Karin van Schie, Joanneke Kwekkeboom, Tom WJ Huizinga, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Rheumatoid arthritis (RA) is characterized by autoantibodies against post-translationally modified proteins (AMPA) such as citrullinated, carbamylated and acetylated proteins. Importantly, these antibodies are highly…
Abstract Number: 0181 • ACR Convergence 2021
Magnetic Resonance Imaging Findings in Early Rheumatoid Arthritis: Are There Differences Based on Autoantibody Status?
Caitrin Coffey¹, Gavin McKenzie¹, Nicholas Rhodes¹, Cassondra Hulshizer¹, Cynthia Crowson², John Davis¹ and Kerry Wright¹, ¹Mayo Clinic, Rochester, MN, ²Mayo Clinic, Eyota, MN
Background/Purpose: Magnetic resonance imaging (MRI) is increasingly used as an adjunct to the physical examination in early rheumatoid arthritis (RA). Characteristic differences in MRI findings…
Abstract Number: 0697 • ACR Convergence 2021
Detection of Autoantibodies Against Muscle-Specific Four-and-a-Half-LIM Domain 1 (FHL1) in Inflammatory Myopathies: Results from a Single-Center Cohort
Angeles Shunashy Galindo-Feria¹, Begum Horuluoglu¹, Jessica Day², Catia Cerqueira³, Edvard Wigren⁴, Susanne Gräslund⁴, Susanna Proudman⁵, Ingrid E Lundberg⁴ and Vidya Limaye⁶, ¹Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ²Rheumatology Unit, Royal Adelaide Hospital, Adelaide, Australia and Discipline of Medicine, University of Adelaide, Adelaide, Australia, ³4Dcell, Montreuil, France, ⁴Karolinska Institutet, Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden, Stockholm, Sweden, ⁵University of Adelaide, Medindie, Australia, ⁶Royal Adelaide Hospital, Adelaide, Australia
Background/Purpose: Autoantibodies targeting a muscle-specific autoantigen, four-and-a-half-LIM-domain 1 (FHL1), have been previously identified in patients with idiopathic inflammatory myopathies (IIM) (1). The aim of this…
Abstract Number: 1378 • ACR Convergence 2021
Presence of Anti-RNA Polymerase 3 Antibody in Systemic Sclerosis, Renal Disease, Malignancy and ILD from a Single Academic Center Cohort
Matthew Kirkpatrick¹, Janet Lee¹, Anne Tebo², Haojia Li¹, yue zhang¹ and Tracy Frech¹, ¹University of Utah, Salt Lake City, UT, ²Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN
Background/Purpose: Autoantibodies are included in the disease classification criteria for systemic sclerosis (SSc). Our group previously reported the level of topoisomerase autoantibody as an important…
Abstract Number: 1551 • ACR Convergence 2021
Generation of Autoantibodies and Their Association with Rheumatic Disease Flares in Adult Patients with Autoimmune Inflammatory Rheumatic Diseases and General Adult Population Following BNT162b2 mRNA Covid-19 Vaccination
Tal Gazitt¹, Joy Feld², Amir Haddad³, Muna Elias⁴, Nizar Hijazi⁴, Nili Stein⁴, Victoria Furer⁵, Tali Eviatar⁶, Hagit Peleg⁷, Ori Elkayam⁸ and Devy Zisman⁴, ¹Carmel Hospital, Haifa, Israel, ²Carmel and Zvulun Medical Centre, Haifa, Israel, ³Carmel Medical Centre, Haifa, Israel, ⁴Carmel Medical Center, Haifa, Israel, ⁵Tel Aviv Sourasky Medical Center, Tel Aviv, Israel, ⁶Tel Aviv Sourasky Medical Center, Givataim, Israel, ⁷Hadassah Medical Center, Jerusalem, Israel, ⁸Tel Aviv Medical Center, Tel Aviv, Israel
Background/Purpose: The rapid spread of the COVID-19 pandemic has created the need for mass vaccination of patients with autoimmune rheumatic disease (AIIRD) despite the lack…
Abstract Number: 0015 • ACR Convergence 2021
Rheumatoid Factor Recognizes Specific Domains of IgG Heavy Chain Complexed with HLA Class II Molecules
Shanshan Zhang¹, Hideaki Tsuji¹, Hui Jin², Koji Kitagori¹, Shuji Akizuki³, Kosaku Murakami¹, Ran Nakashima¹, Hajime Yoshifuji¹, Masao Tanaka¹, Hisashi Arase², Koichiro Ohmura⁴ and Akio Morinobu¹, ¹Kyoto University, Kyoto, Japan, ²Osaka University, Osaka, Japan, ³Kyoto Universtiy, Kyoto City, Japan, ⁴Kobe City Medical Center General Hospital, Kobe, Japan
Background/Purpose: Rheumatoid factor (RF) is an autoantibody that binds to IgG Fc region (CH2 and CH3 domains) and is detectable in patients with rheumatoid arthritis…

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