Abstracts tagged "Myositis"

Abstract Number: 2059 • ACR Convergence 2025
Autoantibody Patterns in Myositis Immunoblot Testing: A Retrospective Study inInflammatory Myopathies and Connective Tissue Diseases (2017–2023)
Fabricio Benavides Villanueva¹, Ligia Gabrie-Rodriguez², Carmen Secada-Gómez³, Mayra Garcia⁴, Hector Ulloa-Alvarado⁵, Giuliano Boselli⁶, Camilo Veloza-Morales⁷, juan Irure-Ventura⁸, Marcos López-Hoyos⁹, Diana Prieto-Peña¹⁰ and Ricardo Blanco³, ¹Division of Rheumatology, Hospital Universitario Marques de Valdecilla, IDIVAL, Immunopathology Group,Santander, Spain, Santander, Spain, ²Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, ³Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain, Santander, Cantabria, Spain, ⁴Division of Immunology, Hospital Universitario Marques de Valdecilla, IDIVAL, Immunopathology Group,Santander, Spain, Santander, Cantabria, Spain, ⁵Servicio Cántabro de Salud, Atención Primaria, Santander, Spain, Santander, Cantabria, Spain, ⁶Rheumatology Division, Hospital Universitario Miguel Servet , Zaragoza, Spain, Zaragoza, Aragon, Spain, ⁷Rheumatology Division, Hospital Universitario Joan XXIII, Tarragona, Spain, Tarragona, Catalonia, Spain, ⁸Division of Immunology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Cantabria, Spain, ⁹Division of Immunology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, ¹⁰Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain., Santander, Spain
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of autoimmune diseases characterized by muscle inflammation and systemic involvement, often associated with specific autoantibodies. Immunoblot…
Abstract Number: 1214 • ACR Convergence 2025
Association of Paraoxonase1 activity with Calcinosis in Patients with Scleroderma and Dermatomyositis : An exploratory analysis
Sangmee Bae¹, Srijana Davuluri², Brian Lee³, Sean Lim⁴, Daniela Markovic⁵, Lorinda Chung², David Fiorentino⁶ and Christina Charles-Schoeman⁷, ¹UCLA Rheumatology, Los Angeles, CA, ²Stanford University, Stanford, CA, ³Stanford University, Stanford, ⁴Stanford University, Palo Alto, ⁵UCLA, Los Angeles, ⁶Department of Dermatology, Stanford University Medical Center, Stanford, CA, ⁷UCLA Medical Center, Santa Monica, CA
Background/Purpose: Calcinosis is a feature seen in systemic sclerosis (SSc) and dermatomyositis (DM) that leads to significant morbidity and poor quality of life. Inflammatory vasculopathy…
Abstract Number: 1191 • ACR Convergence 2025
Effect of ER Stress Inhibition With 4-Phenylbutyric Acid on Disease Phenotype in a Mouse Model of Myositis
Alfredo Guzman, Elizabeth Bagley, Rita Spathis, Madison King, Kanneboyina Nagaraju and Melissa Morales, Binghamton University, Johnson City, NY
Background/Purpose: Dysregulation of the ER stress and interferon (IFN) pathways play a major role in the pathophysiology of autoimmune myositis. Upregulation of ER stress markers…
Abstract Number: 0301 • ACR Convergence 2025
Novel HMGCS1 Deficiency Expands Proinflammatory Monocytes and Cytotoxic Populations with Increased Cytokine Release
Sabrina Helmold Hait¹, Mary Maclean², Cindy Phung³, Gustaf wigerblad⁴, Iago Pinal Fernandez⁴, Carl Esperanzate⁵, hongying Wang⁵, Andrew Mammen⁶, willian Gahl⁵, Daniel L. Kastner⁷, Stefania Dell'orso⁴, Danica Novacic⁵, massimo Gadina⁴ and Ivona Aksentijevich⁸, ¹NIAMS/NIH, Bethesda, MD, ²NIH-NIAMS, Rockville, MD, ³National Institute of Arthritis, Musculoskeletal, and Skin Diseases (NIAMS), Bethesda, MD, ⁴National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ⁵National Human Genome research Institute (NHGRI), National Institutes of Health (NIH), Bethesda, MD, ⁶NIH, Bethesda, MD, ⁷National Human Genome research Institute (NHGRI), National Institutes of Health (NIH), Bethesda, ⁸¹⁰⁰, Bethesda, MD
Background/Purpose: The mevalonate (MVK) pathway synthesizes isoprenoids that mediate post-translational protein modifications via prenylation. Deficient protein prenylation due to decreased mevalonate kinase (MK) activity leads…
Abstract Number: 0227 • ACR Convergence 2025
Malignancy Screening of Dermatomyositis Patients in the Penn State Registry of Inflammatory Myopathies (PRIMO)
Katrina Gonzales¹, William DeKryger², Deepika Pugalenthi Saravanan², Esha Tulsian², Peri Newman³, Jacob Colello², Galen Foulke⁴ and Nancy Olsen⁵, ¹Penn State College of Medicine, Hummelstown, PA, ²Penn State College of Medicine, Hershey, PA, ³Penn State Health/ Penn State College of Medicine, Hershey, PA, ⁴Penn State Health, Hershey, PA, ⁵Penn State University/Milton S Hershey, Hershey, PA
Background/Purpose: Dermatomyositis (DM) is an immune-mediated myopathy characterized by muscle weakness and skin rash that carries an elevated risk of associated malignancy within 5 years…
Abstract Number: 2664 • ACR Convergence 2025
Neutrophil-to-Lymphocyte Ratio (NLR) as a Clinically Accessible Marker for Interferon Signatures in Autoimmune Diseases
YOSHINOBU KOYAMA¹, KENTA SHIDAHARA², YU NAKAI², YOSHIHARU SATO³ and YOSHINORI NISHIURA², ¹Japanese Red Cross Okayama Hospital, Okayama, Okayama, Japan, ²Japan Red Cross Okayama Hospital, Okayama-shi, Okayama, Japan, ³DNA Chip Research Inc., Kawasaki-shi, Kanagawa, Japan
Background/Purpose: Interferons (IFNs) play critical roles in systemic autoimmune diseases, particularly systemic lupus erythematosus (SLE), where heightened type I IFN signaling is a hallmark. Elevated…
Abstract Number: 2057 • ACR Convergence 2025
Clinical Associations of Anti-Ro52 Antibodies in Idiopathic Inflammatory Myopathies: A Scoping Review
Emily Sun¹, Huon Wong², Robin Sia³ and Jessica Day⁴, ¹Royal Melbourne Hospital, Melbourne, Victoria, Australia, ²University of Queensland, Brisbane, Australia, ³Royal Melbourne Hospital, Reservoir, Victoria, Australia, ⁴Walter and Eliza Hall Institute, Melbourne, Victoria, Australia
Background/Purpose: Anti-Ro52 is a myositis-associated antibody increasingly linked to disease features and outcomes in idiopathic inflammatory myopathies (IIMs). Thorough characterisation of these associations is needed…
Abstract Number: 1213 • ACR Convergence 2025
Transitional Changes on High Resolution Computed Tomography (HRCT) in idiopathic inflammatory Myopathy- Associated Interstitial Lung Disease (IIM-ILD)
Sangmee Bae¹, Grace Kim², Jihey Lee², Daniela Markovic², Donald Tashkin², Jonathan Goldin², Rohit Aggarwal³ and Christina Charles-Schoeman⁴, ¹UCLA Rheumatology, Los Angeles, CA, ²UCLA, Los Angeles, ³University of Pittsburgh, Rheumatology and Clinical Immunology, Pittsburgh, United States of America, Pittsburgh, PA, ⁴UCLA Medical Center, Santa Monica, CA
Background/Purpose: HRCT is used as a surrogate for important histopathological findings when evaluating patients with interstitial lung disease (ILD). Quantitative imaging analysis (QIA) using CT…
Abstract Number: 1111 • ACR Convergence 2025
Checkpoint Inhibitor Induced Myocarditis with Myositis/Myasthenia Gravis Concurrence: An Observational Study
Maja Ivanovic¹, Daming Shao², Andrew Wang³, Craig Smuda² and Pankti Reid¹, ¹University of Chicago Medical Center, Chicago, IL, ²University of Chicago, Chicago, IL, ³University of Chicago Pritzker School of Medicine, Chicago, IL
Background/Purpose: Immune checkpoint inhibitor (ICI) induced myositis is the ICI rheumatic toxicity with the greatest case mortality rate, especially when associated with myocarditis and/or myasthenia…
Abstract Number: 0299 • ACR Convergence 2025
Interpreting Myositis Autoantibody Line-Blot Immunoassays in Real-World Settings: Implications for Diagnostic Accuracy for Inflammatory Myopathies
pei-Hsinq lai¹, TING-YUAN LAN², Chiao-Feng Cheng³, Tai-Ju Lee⁴, Ting-Wei Chang⁵, Jui-Hung Kao⁶, Kuan-Yen Lin⁷, Cheng-Hsun Lu⁸, Chiehyu Shen⁹, Ko-Jen Li⁸ and Song-Chou Hsieh¹⁰, ¹Taipei City Hospital, Taichung, Taiwan, ²National Taiwan University Hospital Hsinchu Branch, Hsinchu City, Taiwan, ³National Taiwan University Hospital, Taipei City, Taiwan (Republic of China), ⁴National Taiwan University Hospital Hsinchu Branch, Hsinchu City, Taiwan (Republic of China), ⁵National Taiwan University Hospital Hsinchu Branch, Taichung, Taiwan, ⁶Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan, Taipei, Taiwan (Republic of China), ⁷National Taiwan University Hospital, Hsin-Chu Branch, Hsin-Chu City, Taiwan (Republic of China), ⁸National Taiwan University Hospital, Taipei, Taiwan, ⁹National Taiwan University Hospital, Taipei city, Taiwan, ¹⁰National Taiwan Unuversity Hospital, Taipei City, Taiwan (Republic of China)
Background/Purpose: Idiopathic inflammatory myopathies (IIM) present with diverse clinical features and disease courses. The myositis autoantibody line blot immunoassay (LIA) has advanced IIM diagnostics and…
Abstract Number: 0145 • ACR Convergence 2025
Population Assessment of Cancer Incidence among Patients with Idiopathic Inflammatory Myopathies in North Carolina
Astia Allenzara¹, Ben Albright², Xi Zhou², Amanda Nelson³, Laura Green⁴, Katherine Reeder-Hayes⁴, Jennifer Lund⁴, Caroline Thompson⁴ and Chris Baggett⁴, ¹UNC, Chapel Hill, NC, ²University of North Carolina, Chapel Hill, NC, ³University of North Carolina at Chapel Hill, Chapel Hill, NC, ⁴University of North Carolina, Chapel Hill
Background/Purpose: Cancer is highly prevalent and a leading cause of death for patients with Idiopathic Inflammatory Myopathies (IIM). Evaluating cancer type and stage at diagnosis…
Abstract Number: 2554 • ACR Convergence 2025
Real-World Observations on Symptom Response and Tolerability of Intravenous Immunoglobulin in Patients with Inflammatory Myopathies through a Nurse-Led Outcomes Monitoring Program in a Home Infusion Setting
Didem Saygin¹, Elizabeth Neal², Edward O'Bryan³, Alisha Smith, PharmD³, Leslie Myers³ and Timothy Walton³, ¹Rush University Medical Center, Chicago, IL, ²CSI Pharmacy, Nash, TX, ³CSI Pharmacy, Nash
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are autoimmune diseases typically characterized by muscle weakness. Intravenous Immunoglobulin (IVIg) is an effective immunomodulatory therapy in patients with refractory…
Abstract Number: 2056 • ACR Convergence 2025
Systematic Review: Nutritional Interventions in Muscle Diseases
Deepanjali Vedantam¹, Taanya Talreja², Pranathi Bandarupalli³, Sheryl Salis⁴, Debra Lupeika⁵, Ashley Maclean⁶, Karen Cheng⁷, Teerin Liewluck⁸, Lakshmi Nagendra⁹ and Latika Gupta¹⁰, ¹Shasta Regional Medical Centre, Redding, CA, ²KEM Hospital, Mumbai, Maharashtra, India, ³Mercy St Vincent Medical Center, Toledo, OH, ⁴Nurture Health Solutions, Mumbai, Maharashtra, India, ⁵Department of Family Medicine, UC Davis, Redding, ⁶Vacaville Ranch Post Acute, Redding, ⁷., Basel, Switzerland, ⁸Division of Neuromuscular Medicine, Department of Neurology, Mayo clinic-Rochester, Rochester, ⁹Department of Endocrinology, JSS Academy of Higher Education and Research, Mysore, Karnataka, India, ¹⁰School of Infection, Inflammation and Immunology, College of Medicine and Health, University of Birmingham; Royal Wolverhampton NHS Trust; Centre for Musculoskeletal Research, School of Biological Sciences, The University of Manchester, Manchester; Francis Crick Institute, London, Birmingham, UK, United Kingdom
Background/Purpose: Medical nutrition therapy significantly impacts cardiovascular risk and overall health, but effects on muscle diseases remain unclear. This systematic review evaluates nutritional interventions' safety…
Abstract Number: 1212 • ACR Convergence 2025
Relapse in Idiopathic Inflammatory Myopathies: insights from extended MyoCite and Italian Consortia
Maria Rosa Pellico¹, Cristina Bochicchio², Claudia Iannone³, Lekshmi Minikumari Rahulan⁴, Marco Fornaro⁵, Ilaria Cavazzana⁶, Edoardo Conticini⁷, Masataka Kuwana⁸, Akira Yoshida⁹, Silvia Cavalli², Silvia Grazzini⁷, Alessia Gatti¹⁰, Giulio Lopinto¹¹, Paolo Semeraro¹², Thomas Patrick Sheeran¹³, Florenzo Iannone¹⁴, Vikas Agarwal¹⁵, Roberto Caporali¹⁶, Nicoletta Del pAPA¹ and Latika Gupta¹⁷, ¹ASST Pini-CTO, Clinical Rheumatology Unit, Milano, Italy, ²ASST Pini-CTO, Clinical Rheumatology Unit, Milan, Italy, ³University of Milan, Gaetano Pini CTO, Milano, Milan, Italy, ⁴Sanjay Gandhi Postgraduate Institute of Medical sciences Lucknow, Lucknow, Uttar Pradesh, India, ⁵Unit of Rheumatology, Department of Precision and Regenerative Medicine, Area Jonica (DiMePRe-J), University of Bari, Italy., Bari, Italy, ⁶Rheumatology and Clinical Immunology Unit, Clinical and Experimental Sciences Department, ERN ReCONNET, ASST Spedali Civili of Brescia and University of Brescia, Brescia, Italy, Brescia, Lombardia, Italy, ⁷Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy, Siena, Italy, ⁸Nippon Medical School Graduate School of Medicine, Tokyo, Japan, ⁹Department of Allergy and Rheumatology Nippon Medical School Graduate School of Medicine, Tokyo, Japan, ¹⁰Rheumatology and Clinical Immunology Unit – ERN ReCONNET, ASST Spedali Civili and University of Brescia, Brescia, Lombardia, Italy, ¹¹Unit of Rheumatology, Department of Precision and Regenerative Medicine, Area Jonica (DiMePRe-J), University of Bari, Italy., Bari, ¹²Rheumatology and Clinical Immunology Unit, Clinical and Experimental Sciences Department, ERN ReCONNET, ASST Spedali Civili of Brescia and University of Brescia, Brescia, Italy, Brescia, Italy, ¹³Department of Rheumatology, The Royal Wolverhampton NHS Trust, Wolverhampton, UK; Rheumatology Department, Walsall Manor Hospital, Walsall, UK, Wolverhampton, United Kingdom, ¹⁴Rheumatology DiMePReJ, University of Bari, School of Medicine, Bari, Italy, Bari, Italy, ¹⁵Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India, ¹⁶University of Milan and ASST Gaetano Pini-CTO, Milano, Italy, ¹⁷School of Infection, Inflammation and Immunology, College of Medicine and Health, University of Birmingham; Royal Wolverhampton NHS Trust; Centre for Musculoskeletal Research, School of Biological Sciences, The University of Manchester, Manchester; Francis Crick Institute, London, Birmingham, UK, United Kingdom
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a group of rare and heterogeneous diseases. One of the greatest challenges in IIM management is defining and predicting…
Abstract Number: 0999 • ACR Convergence 2025
Myositis Induced by Histidyl-Transfer tRNA Synthetase is Exacerbated by Membranopathy and Suppressed by Regulatory T Cells
Samantha Coss¹, Nicholas Young², Shane Bruckner³, Braden Zeno⁴, Gianni Giarrano⁵, Hannah Bulgart⁶, Paula Clemens⁷, Jisna Paul², Chester V. Oddis⁸, noah weisleder⁹, Dana Ascherman⁸ and Wael Jarjour¹⁰, ¹Nationwide Children's Hospital, Columbus, OH, ²Division of Rheumatology and Immunology, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, Columbus, OH, ³OSU, Columbus, OH, ⁴Ohio State University, upper arlington, OH, ⁵Division of Rheumatology, Nationwide Children's Hospital, Columbus, OH, ⁶Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, KY, ⁷Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, ⁸University of Pittsburgh, Pittsburgh, PA, ⁹University of Kentucky, Lexington, KY, ¹⁰The Ohio State University, Columbus, OH
Background/Purpose: Idiopathic inflammatory myopathies (IIMs) are a heterogeneous group of autoimmune disorders targeting muscle as well as extra-muscular organs. Among the most common autoantibodies associated…

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