Abstracts tagged "Autoantibody(ies)"

Abstract Number: 0040 • ACR Convergence 2024
Targeting Complement Factor B (CFB) via a Novel siRNA Therapy (AZD6912) to Treat Inflammatory Arthritis
Gary Sims¹, Mia Collins², Natalie Pursell³, Teneema Kuriakose¹, Fanyi Jiang⁴, Kristi Moore⁵, Lucie Bertrand⁵, Melissa Lasaro⁵, Jessica Neisen⁶, Scott Manetz⁷, Gabriel Wong⁸, Patrick Riley⁵, Iain McInnes⁹, Kyriakos Konstantinidis¹⁰ and David Close⁸, ¹Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, ²Translational Science and Experimental Medicine, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden, ³Dicerna, Lexington, ⁴Translation and Experimental Medicine, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom, ⁵Alexion, AstraZeneca Rare Disease, New Haven, CT, ⁶Translational Science and Experimental Medicine, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom, ⁷Clinical Pharmacology and Safety Science, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, ⁸Early Clinical Development, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom, ⁹University of Glasgow, College of Medical Veterinary and Life Sciences, Glasgow, United Kingdom, ¹⁰Projects, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom
Background/Purpose: New precision medicine guided therapies targeting alternate disease driving processes are required to improve clinical outcomes in RA. The complement pathway has long been…
Abstract Number: 0341 • ACR Convergence 2024
Efficacy and Safety of Nintedanib in Patients with Idiopathic Inflammatory Myopathy-related Interstitial Lung Disease
Kaito Aoki¹, Keigo Shimura¹, Toshiki Ohisa¹, Akira Ishii¹, Mai Sugiyama², Yuichiro Ota¹, Ayumi Nishikawa³, Noriko Sasaki³, Chiho Yamada¹ and Shinji Sato², ¹Tokai University School of Medicine, Isehara, Japan, ²Tokai University, Isehara, Japan, ³Tokai University Hachioji Hospital, Hachioji, Japan
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are chronic inflammatory disorders that affect muscle, skin and lung to varying degrees. Interstitial lung disease (ILD) is a major…
Abstract Number: 0750 • ACR Convergence 2024
Corticosteroid Withdrawal Using Tocilizumab and Its Association with Autoantibody Profile in Takayasu Arteritis: A Multicenter, Single-arm, Prospective Study
Tsuyoshi Shirai¹, Tomonori Ishii², Soshi Okazaki¹, Yuko Shirota³, Yusho Ishii⁴, Hiroko Sato¹ and Hiroshi Fujii¹, ¹Tohoku University, Sendai, Japan, ²Tohoku Medical and Pharmaceutical University / Department of Hematology and Rheumatology, sendai, Japan, ³Tohoku University Hospital / Department of Hematology and Rheumatology, Sendai, Japan, ⁴Tohoku university, Sendai, Miyagi, Japan
Background/Purpose: The application of molecular targeted drugs has been expanding in vasculitides. Takayasu arteritis (TAK) frequently relapses and tocilizumab (TCZ) and tumor necrosis factor inhibitors…
Abstract Number: 1295 • ACR Convergence 2024
A Qualitative Survey of Internal Medicine Residents’ Understanding of Appropriate ANA Testing: An 11-Year Update Since the ‘Choosing Wisely’ Campaign
Arushika Yedla¹, Wei Tang², Jaspreet Bhatti², Kyu-In Lee³ and James Miceli³, ¹Westchester Medical Center, White Plains, NY, ²Westchester Medical Center, Valhalla, ³Westchester Medical Center, Valhalla, NY
Background/Purpose: ANA testing is recommended when there is a reasonable clinical suspicion for systemic autoimmune disease. Testing in the setting of low pre-test probability, however,…
Abstract Number: 1649 • ACR Convergence 2024
B Cell Subset Contribution to Autoantibodies in Lupus
Kristina Ottens¹, Jalyn Schneider¹ and Anne Satterthwaite², ¹UT Southwestern Medical Center, Dallas, ²UT Southwestern Medical Center, Dallas, TX
Background/Purpose: Systemic lupus erythematous is characterized by the production of pathogenic autoantibodies that drive inflammation and tissue damage. Defining the B cell subsets that give…
Abstract Number: 2052 • ACR Convergence 2024
Role of Scleroderma/myositis-related Autoantibodies Detected by Immunoblot to the Diagnosis of Systemic Autoimmune Rheumatic Diseases in 410 Patients from a Single Referral Center
Carmen Secada Gómez¹, Diana Prieto-Peña², Mónica Renuncio-García³, Juan Irure-Ventura⁴, Marcos Lopez-Hoyos⁵ and Ricardo Blanco-Alonso⁶, ¹Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain, ²Division of Rheumatology, Hospital Universitario Marqués de Valdecilla. IDIVAL, Immunopathology group, Santander, Cantabria, Spain, ³Division of Immunology, Hospital Universitario Marqués de Valdecilla, Immunopathology Group, IDIVAL, Santander, Spain, ⁴Division of Immunology, Hospital Universitario Marqués de Valdecilla. Immunopathology group, IDIVAL, Santander, Cantabria, Spain, ⁵Division of Immunology, Hospital Universitario Marqués de Valdecilla. Immunopathology group, IDIVAL, Santander, Spain, ⁶Division of Rheumatology, Hospital Universitario Marqués de Valdecilla. IDIVAL, Immunopathology group, Santander, Spain
Background/Purpose: In clinical practice, immunoblot assays are being used more frequently as a diagnostic tool for systemic autoimmune rheumatic diseases (SARDs).Our aim was to evaluate the…
Abstract Number: 2391 • ACR Convergence 2024
Identification of Patients with ANA Negative and Double Stranded DNA Positive: What Is the Significance in Daily Rheumatology Practise
Güllü Sandal Uzun¹, Emily Apsley² and David Isenberg², ¹University College London, London, England, United Kingdom, ²University College London, London, United Kingdom
Background/Purpose: The anti-nuclear antibody (ANA test) is a sensitive screening tool used when assessing patients with possible autoimmune rheumatic diseases (ARD). Homogeneous staining positivity is…
Abstract Number: 0015 • ACR Convergence 2023
Genetic Predisposition to a Positive Antinuclear Antibody Test Is Not Associated with Increased Risk of Disease
Gul Karakoc¹, Ge Liu¹, Jacy Zanussi², Cecilia Chung², Jorge Gamboa¹, Jonathan Mosley¹, Nancy Cox¹, C. Michael Stein¹ and Vivian Kawai¹, ¹Vanderbilt University Medical Center, Nashville, TN, ²University of Miami, Miami, FL
Background/Purpose: Antinuclear antibodies (ANA) are biomarkers that are frequently used in the diagnosis of common autoimmune (AI) disorders, but are also present in ~12-20% of…
Abstract Number: 0555 • ACR Convergence 2023
Evaluation and Management of the “False Positive” ANA and Undifferentiated Connective Tissue Disease Amongst Rheumatologists
Neha Gupta¹, Sarah Ford², Lane Scheiber², Tangada Rao² and Abhishek Nandan², ¹Virginia Commonwealth University Health Systems, Richmond, VA, ²Virginia Commonwealth University Health Systems; Veterans Affairs Medical Center, Richmond, VA
Background/Purpose: The management of a positive anti-nuclear antibody (ANA) is one of the most common consultations in rheumatology outpatient practice. The prevalence of a positive…
Abstract Number: 0852 • ACR Convergence 2023
Screening for Specific Antinuclear Antibodies Using an Artificial Intelligence-enabled Antinuclear Antibody HEp-2 Substrate by Indirect Immunofluorescence Assay
Patrick Vanderboom, Surendra Dasari, Anne Tebo, Melissa Snyder and Ali Duarte-Garcia, Mayo Clinic, Rochester, MN
Background/Purpose: Antinuclear antibodies (ANA) are key biomarkers in the diagnostic evaluation of systemic autoimmune diseases and are widely used in clinical practice. The most accepted…
Abstract Number: 1181 • ACR Convergence 2023
Real-World Myositis Antibody Frequency and Patient Awareness
Raisa Lomanto Silva¹, shiri keret², Akanksha Sharma³, Tanya Chandra⁴, Siamak Moghadam-Kia¹, Chester V. Oddis⁵ and Rohit Aggarwal⁵, ¹University of Pittsburgh Medical Center, Pittsburgh, PA, ²Bnai Zion, Atlit, Israel, ³UPMC Mercy Hospital, Pittsburgh, PA, ⁴Georgetown University Hospital, Washington, DC, ⁵University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Myositis-specific antibodies (MSA) represent unique phenotypes in idiopathic inflammatory myopathies (IIM). Myositis-associated antibodies (MAA) most commonly occur in IIM overlap syndromes. MSA and MAA…
Abstract Number: 1746 • ACR Convergence 2023
Smoking as a Risk Factor for Rheumatoid Arthritis: Exclusive Association with IgA Autoantibodies
Tineke van Wesemael¹, Anna Svärd², Annemarie Dorjee¹, Thomas Huizinga¹, René Toes¹ and Diane van der Woude¹, ¹Leiden University Medical Center, Leiden, Netherlands, ²Centre for Clinical Research Dalarna, Uppsala, Sweden
Background/Purpose: Rheumatoid arthritis (RA) is characterized by autoantibodies to anti-modified protein autoantibodies (AMPAs) like anti-citrullinated protein antibodies (ACPA) and anti-acetylated protein antibodies (AAPA). Smoking is…
Abstract Number: 2266 • ACR Convergence 2023
Direct Health Care Costs Differ by SLE Autoantibody Machine Learning Clusters in an International Inception
May Choi¹, Karen Costenbader², Marvin Fritzler¹, Yvan St. Pierre³, Murray Urowitz⁴, John G. Hanly⁵, Caroline Gordon⁶, Sang-Cheol Bae⁷, Juanita Romero-Diaz⁸, Jorge Sanchez-Guerrero⁹, Sasha Bernatsky³, Daniel Wallace¹⁰, David Isenberg¹¹, Anisur Rahman¹², Joan Merrill¹³, Paul R. Fortin¹⁴, Dafna Gladman¹⁵, Ian Bruce¹⁶, Michelle Petri¹⁷, Ellen Ginzler¹⁸, Mary Anne Dooley¹⁹, Rosalind Ramsey-Goldman²⁰, Susan Manzi²¹, Andreas Jonsen²², Graciela S Alarcón²³, Ronald van Vollenhoven²⁴, Cynthia Aranow²⁵, Meggan MacKay²⁵, Guillermo Ruiz-Irastorza²⁶, S. Sam Lim²⁷, Murat Inanc²⁸, Kenneth Kalunian²⁹, Soren Jacobsen³⁰, Christine Peschken³¹, Diane L. Kamen³², Anca Askanase³³, Jill Buyon³⁴ and Ann Clarke³⁵, ¹University of Calgary, Calgary, AB, Canada, ²Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ³Research Institute of the McGill University Health Centre, Montreal, QC, Canada, ⁴Schroeder Arthritis Institute, Krembil Research Institute; University of Toronto Lupus Clinic; Division of Rheumatology, Toronto, ON, Canada, ⁵Dalhousie University, Halifax, NS, Canada, ⁶Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom, ⁷Hanyang University Hospital for Rheumatic Diseases and Hanyang University Institute for Rheumatology Research, Department of Rheumatology, Seoul, South Korea, ⁸Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Mexico, ⁹University Health Network, Toronto, ON, Canada, ¹⁰Cedars-Sinai Medical Center, Los Angeles, CA, ¹¹University College London, London, United Kingdom, ¹²Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom, ¹³Oklahoma Medical Research Foundation, Oklahoma City, OK, ¹⁴Centre ARThrite - CHU de Québec - Université Laval, Quebec City, QC, Canada, ¹⁵Schroeder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Department of Medicine, University of Toronto, Toronto, ON, Canada, ¹⁶University of Manchester, Manchester, United Kingdom, ¹⁷Department of Medicine, Division of Rheumatology, Johns Hopkins University School of Medicine, Timonium, MD, ¹⁸SUNY Downstate Health Sciences University, Brooklyn, NY, ¹⁹Raleigh Neurology Associates, Chapel Hill, NC, ²⁰Northwestern University, Chicago, IL, ²¹Lupus Center of Excellence, Autoimmunity Institute, Allegheny Health Network, Pittsburgh, PA, ²²Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden, ²³Heersink School of Medicine. The University of Alabama at Birmingham, Birmingham, AL, ²⁴Amsterdam University Medical Centers, Amsterdam, Netherlands, ²⁵Feinstein Institutes for Medical Research, Manhasset, NY, ²⁶Hospital Universitario Cruces, Barakaldo, Spain, ²⁷Emory University, Atlanta, GA, ²⁸Division of Rheumatology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey, ²⁹University of California San Diego, La Jolla, CA, ³⁰Rigshospitalet, Copenhagen, Denmark, ³¹University of Manitoba, Winnipeg, MB, Canada, ³²Medical University of South Carolina, Charleston, SC, ³³Columbia University Medical Center, New York, NY, ³⁴NYU Grossman School of Medicine, New York, NY, ³⁵University of Calgary, Division of Rheumatology, Cumming School of Medicine, Calgary, AB, Canada
Background/Purpose: Using machine learning, we identified 4 patient clusters based on longitudinal autoantibody profiles in an international SLE inception cohort, which were predictive of disease…
Abstract Number: 0018 • ACR Convergence 2023
Alternative Splicing and Expected Protein Changes in Muscle Biopsies from Different Types of Idiopathic Inflammatory Myopathies
Rayan Najjar¹, Iago Pinal-Fernandez², Andrew Mammen³ and Tomas Mustelin¹, ¹University of Washington, Seattle, WA, ²National Institutes of Health, Bethesda, MD, ³NIH, Bethesda, MD
Background/Purpose: Alternative splicing of mRNA results in important biological impacts with increasing evidence implicating it in the pathology of autoimmune diseases. However, it is understudied…
Abstract Number: 0561 • ACR Convergence 2023
Frequency of Anti-Ro Antibodies in Systemic Lupus Erythematosus Patients: Insights from Multicenter and National Registry
Lucia Margarita Mendoza Martinez¹, Joan Manuel Dapeña¹, Juan Manuel Bande¹, Maria Alejandra Medina¹, Silvia Papasidero¹, José caracciolo¹, Rosana Quintana², Lucila Garcia², Carla Andrea Gobbi², Sandy Sapag Durán², Alberto Spindler², Analia Patricia Alvarez², Cecilia Pisoni², Catalina Gomez², Raúl Hector Paniego², María Julia Santa cruz², Luciana Gonzalez Lucero², Rodrigo Aguila Maldonado², Sergio Gordon², Julia Romero², Gretel Rausch², Alberto Allievi², Alberto Omar Orden², johana zacariaz hereter³, Roberto Baéz², Andrea Vanesa González², Juan Manuel Vandale², Mario Alberto Goñi², Victor Caputo⁴, María Silvia Larroudé², Graciela Gómez², Josefina Marin², Victoria Collado², Gazzoni María Victoria², Marcos David Zelaya², Mónica Sacnún², Romina Rojas Tessel², Maira Alejandra Arias Saavedra², Maximiliano Machado Escobar², Pablo Astesana², Ursula Vanesa Paris², Bernando A. Pons-Estel² and Mercedes García⁵, ¹Hospital General de Agudos Dr. Enrique Tornú, Buenos Aires, Argentina, ²Study Group of the Argentine Society of Rheumatology for Systemic Lupus Erythematosus, Buenos Aires, Argentina, ³Hospital Italiano de Buenos Aires, Buenos Aires, Argentina, ⁴Hospital Militar Central, Buenos Aires, Argentina, ⁵Hospital Interzonal General de Agudos José de San Martín, La Plata, Argentina
Background/Purpose: Anti-Ro antibodies can be detected in 40% of patients with systemic lupus erythematosus (SLE) and have been associated with various clinical manifestations of the…

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