Abstracts tagged "Autoantibody(ies)"

Abstract Number: 1930 • ACR Convergence 2024
Clinical Significance of Positive ENA Testing in ANA-Negative Patients: A Retrospective Analysis of Rheumatologic Diagnoses
Bassel Bou Dargham¹, Jason Huang² and Michael Luggen³, ¹University of Cincinnati Medical Center, Cincinnati, OH, ²University of Cincinnati, Cincinnati, ³University Hospital/University of Cincinnati College of Medicine, Cincinnati, OH
Background/Purpose: On the basis of consensus methodology and literature review, the ACR has recommended that antibodies to extractable nuclear antigens (ENA), also known as subserologies…
Abstract Number: 2384 • ACR Convergence 2024
Performance and Concordance of Two Different Methods of Detecting the Commonest Autoantibodies in Systemic Lupus Erythematosus
Ranjan Gupta¹, Sonam Rajput², Rudra Prosad Goswami², Jayanth Kumar² and Amita Aggarwal³, ¹All India Institute of Medical Sciences, New Delhi, Delhi, India, ²All India Institute of Medical Sciences, New Delhi, New Delhi, India, ³Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India, Lucknow, Uttar Pradesh, India
Background/Purpose: Autoantibodies in SLE can be detected by either immunoblot assay or by ELISA. Both these methods may have variable performance with respect to the…
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: 0048 • ACR Convergence 2024
Role of the Chemokine CCL22 in Rheumatoid Arthritis Development
Marcelo Afonso¹, Masa Filipovic¹, Alexandra Argyriou², Alexandra Circiumaru³, Mikael Ringh¹, Konstantin Carlberg¹, Vijay Joshua¹, Szu-Jing Chen¹, Marianne Engström¹, Heidi Wähämaa¹, Tomas Ekström¹, Marc H Wadsworth II⁴, Ravi Kumar¹, Aaron Winkler⁵, Vivianne Malmström¹, Anca Catrina¹, Karine Chemin¹, Aase Hensvold¹ and Bence Réthi¹, ¹Karolinska Institutet, Stockholm, Sweden, ²Karolinska Institutet, Solna, Sweden, ³Division for Rheumatology, Karolinska Institutet; Center for Rheumatology, Academic Specialist Center, Stockholm region, Stockholm, Sweden, ⁴Pfizer, Cambridge, ⁵Pfizer Inc., Cambridge, MA
Background/Purpose: Understanding alterations of the immune homeostasis in individuals at risk of rheumatoid arthritis (RA) can be a key to achieve earlier diagnosis and prevention.…
Abstract Number: 0343 • ACR Convergence 2024
An Interlaboratory Variability Study of Detection Methods for Myositis-Specific and Myositis-Associated Autoantibodies in Sera from Patients with Idiopathic Inflammatory Myopathies
Georgina Harvey¹, Idil Ashur², Xavier Bossuyt³, Martin Bluethner⁴, Anna Brusch⁵, Chris Bundell⁵, hector Chinoy⁶, Claire Coeshott⁷, Charmaine Donald², Juliet Dunphy⁸, Marvin Fritzler⁹, Adrian Heaps², marie Hudson¹⁰, Masataka Kuwana¹¹, Océane Landon-Cardinal¹², Hui Lu¹, FIONNUALA MCMORROW¹, Marie Mayrhofer⁴, Alain Meyer¹³, Birthe Michiels³, Benoit Nespola¹⁴, Susan O'Loughlin¹⁵, Ivana Putova¹⁶, Johan Rönnelid¹⁷, Ross Sadler¹⁸, Maria Teresa Sanz-Martinez¹⁹, Paul Sciore²⁰, Albert Selva-O’Callaghan²¹, Helena Storfors²², Ernesto Trallero-Araguás²³, Yves Troyanov¹², Jade Tyson², Jiří Vencovský²⁴, Akira Yoshida²⁵ and Sarah Tansley¹, ¹University of Bath, Bath, United Kingdom, ²Severn Pathology, North Bristol NHS Trust, Bristol, United Kingdom, ³University Hospitals Leuven, Leuven, Belgium, ⁴MVZ Labor PD Dr. Volkmann und Kollegen GbR, Karlsruhe, Germany, ⁵Department of Clinical Immunology, PathWest Laboratory Medicine, Perth, Western Australia, Australia, ⁶The University of Manchester, Manchester, United Kingdom, ⁷Advanced Diagnostics Laboratories National Jewish Health, Denver, CO, ⁸Royal United Hospital Bath NHS Foundation Trust, Bath, United Kingdom, ⁹Mitogen Diagnostics Corp, Calgary, AB, Canada, ¹⁰McGill University, Montreal, QC, Canada, ¹¹Department of Allergy and Rheumatology, Nippon Medical School, Tokyo, Japan, Tokyo, Japan, ¹²Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada, ¹³UR3072, Physiology Department, Rheumatology Department, University Hospital of Strasbourg, Strasbourg, France, ¹⁴Laboratoire d’immunologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France, ¹⁵Greater Manchester Immunology Service, Manchester, England, United Kingdom, ¹⁶Institute of Rheumatology, Prague, Czech Republic, ¹⁷Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden, ¹⁸Laboratory of Immunology, Churchill Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, England, United Kingdom, ¹⁹Immunology Division, Vall d'Hebron Hospital, Barcelona, Spain, ²⁰Mitogen Diagnostics Corp., Calgary, ²¹Internal Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain, ²²Department of Clinical Immunology and Transfusion Medicine, Uppsala University Hospital, Uppsala, Sweden, ²³Rheumatology Departament, Vall d'Hebron Hospital, Barcelona, Spain, ²⁴Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²⁵Nippon Medical School Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan
Background/Purpose: In idiopathic inflammatory myopathy (IIM) spectrum diseases, myositis-specific and myositis-associated autoantibodies (MSAs/MAAs) are key markers of disease subtype and prognosis and are considered routine…
Abstract Number: 0808 • ACR Convergence 2024
Confirmation of Second Trimester Trophoblast Transport of Maternal Anti-SSA/Ro52 and 60kD Autoantibodies in Cardiac Neonatal Lupus: Implications for FcRn Blockade
Nicola Fraser¹, Mala Masson², Robert Clancy³, Philip Carlucci⁴, Peter Izmirly⁵, Nalani Sachan⁶, Justin Brandt¹, Kristen Thomas¹, Melanie Fox⁷, Colin Phoon¹, Achiau Ludomirsky¹, Ranjini Srinivasan¹, Garrett Lam⁸, Bettina Cuneo⁹ and Jill Buyon¹⁰, ¹NYU Langone Health, New York, NY, ²NYU Langone Medical Center- Division of Rheumatology, New York, NY, ³Columbia University Medical Center, New York, NY, ⁴New York University School of Medicine, New York, NY, ⁵New York University Grossman School of Medicine, New York, NY, ⁶NYU Grossman School of Medicine, New York, NY, ⁷Renown Health, Reno, NV, ⁸Intermountain Health, Provo, UT, ⁹University of Arizona College of Medicine, Tucson, AZ, ¹⁰New York University Grossman School of Medicine, New York, NY
Background/Purpose: The nearly invariant finding of anti-SSA/Ro52/60kD autoantibodies in pregnancies complicated by cardiac neonatal lupus (cardiac-NL), which manifests as fetal atrioventricular block and endocardial fibroelastosis…
Abstract Number: 1298 • ACR Convergence 2024
What Is an ANA and Why Should I Care? Strategies to Increase Understanding of Basic Rheumatologic Labs Within Medical Education
Megan Schluentz¹ and Sonam Kiwalkar², ¹Ochsner, New Orleans, LA, ²The Vancouver Clinic, Portland, OR
Background/Purpose: A growing availability crisis in Rheumatology requires consideration of steps and best practices that might be employed to meet high demand. Besides increasing the…
Abstract Number: 1650 • ACR Convergence 2024
IL-33 Expands Plasma Cells, Disrupts Germinal Centers and Increases Autoantibody Production
Andre Limnander¹, Eva Conde¹, Seblewongel Asrat², Andrea Vecchione², Kaitlyn Gayvert², Paulina Pedraza², Carley Tasker², Sharon Huang², Dmitry Yarilin², Dylan Birchard², Li-Hong Ben², Wei Keat Lim², Andrew Murphy², Matthew Sleeman² and Jamie orengo¹, ¹Regeneron Pharmaceuticals, Tarrytown, NY, ²Regeneron Pharmaceuticals, Tarrytown
Background/Purpose: IL-33 is a pro-inflammatory cytokine that plays a role in asthma, COPD and autoimmune diseases. The role of IL-33 on B cell maturation and…
Abstract Number: 2053 • ACR Convergence 2024
Presence of ANA to Development of Rheumatic Diseases
Uyen Nguyen¹ and Huzaefah Syed², ¹Virginia Commonwealth University, School of Medicine, Richmond, VA, ²Virginia Commonwealth University Medical Center, Richmond, VA
Background/Purpose: One of the most common referrals seen in rheumatology is for a positive anti-nuclear antibody (ANA). Often, the referral does not yield in a…

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