Abstracts tagged "Myositis"

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…
Abstract Number: 0298 • ACR Convergence 2025
Inter-rater Reliability of Hand-Held Dynamometry in Patients with Idiopathic Inflammatory Myopathy
Niladri Bhowmick¹, Shashank Suresh², Didem Saygin³, Siamak Moghadam-Kia⁴, Dana Ascherman⁵, Chester V. Oddis⁵ and Rohit Aggarwal⁶, ¹University of Pittsburgh Medical Center, Pittsburgh, ²Atrium Health, Charlotte, NC, ³Rush University Medical Center, Chicago, IL, ⁴University of Pittsburgh Medical Center, Pittsburgh, PA, ⁵University of Pittsburgh, Pittsburgh, PA, ⁶University of Pittsburgh, Rheumatology and Clinical Immunology, Pittsburgh, United States of America, Pittsburgh, PA
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are characterized by symmetrical proximal muscle weakness. Accurate and reliable assessment of muscle strength is important for diagnosis, monitoring, and…
Abstract Number: 0043 • ACR Convergence 2025
Single-cell and Spatial Transcriptomic Profiling of Muscle Reveals Inflammatory Mechanisms in Anti-glycyl tRNA Synthetase Syndrome
Takuya Harada¹, Hiroyuki Yamashita¹, Ami Isoda¹, Ken Kawaue¹, Mayuko Hayashi¹, Yutaro Misawa¹, Aruto Yamamoto¹, Miyu Wakatsuki¹, Yuya Akiyama¹, Setsuko Oyama¹, Kyoko Motomura¹, Hiroyuki Takahashi¹, Akiko Mitsuo², Yuichi Goto³, Eisei Noiri³ and Hiroshi Kaneko¹, ¹Division of Rheumatic Diseases, National Center for Global Health and Medicine, Japan Institute for Health Security, Tokyo, Japan, ²Division of Clinical Laboratory Medicine, National Center for Global Health and Medicine, Japan Institute for Health Security, Tokyo, Japan, ³National Center Biobank Network, Tokyo, Japan
Background/Purpose: We characterized the spatial distribution of immune cells and identified hub genes within activated molecular networks in key immune cell populations, based on the…
Abstract Number: 2478 • ACR Convergence 2025
Endothelial Cell Biomarker Expression Suggests Increased Cell Adhesion in Juvenile SSc, Increased Cytokine Expression in JDM, and an Intermediate Phenotype in Overlap Syndrome Patients
Daniel Barnett¹, Alyssa Rosek², Yi-Chen Chen³, Alexander Cai⁴, Deren Esencan⁵, Sophia Matossian⁶, Christine Goudsmit⁷, Haley Havrilla⁸, Anwesha Sanyal⁹, Julie Sturza¹⁰, Pei-Suen Tsou⁶, Kathryn Torok⁹ and Jessica Turnier¹¹, ¹Division of Pediatric Rheumatology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, Pittsburgh, PA, ²Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, Ann Arbor, MI, ³Division of Rheumatology, Department of Internal Medicine, University of Michigan, ANN ARBOR, MI, ⁴Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA, Ann Arbor, ⁵¹. Division of Pediatric Rheumatology, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, Pittsburgh, PA, ⁶University of Michigan, Ann Arbor, MI, ⁷University of Michigan, Ann Arbor, ⁸Division of Pediatric Rheumatology, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, Pittsburgh, PA, ⁹University of Pittsburgh, Pittsburgh, PA, ¹⁰Division of Pediatric Rheumatology, CS Mott Children’s Hospital, University of Michigan, Ann Arbor, MI, Ann Arbor, MI, ¹¹University of Michigan, Saline, MI
Background/Purpose: Vasculopathy is a central driving clinical, histopathologic and pathogenic feature of juvenile systemic scleroderma (jSSc), juvenile dermatomyositis (JDM) and juvenile scleroderma-overlap syndrome (jOverlap). While…
Abstract Number: 2054 • ACR Convergence 2025
A Changing Paradigm: Reassessing the Role of Muscle Biopsy in Idiopathic Inflammatory Myopathies in a Single-Center Cohort
Ami Purohit¹, Najia Shakoor², Dmitriy Cherny¹ and Juan Schmukler¹, ¹Rush University Medical Center, Chicago, IL, ²Rush University, Chicago, IL
Background/Purpose: Idiopathic inflammatory myopathies (IIMs) encompass a heterogenous group of autoimmune diseases characterized by inflammation of muscle and other target organs. Muscle biopsy was historically…
Abstract Number: 1211 • ACR Convergence 2025
Plasma Levels of miR-133a-3p and miR-1-3p as Potential Biomarkers of Muscle Involvement and Initial Treatment Response in Myositis
Kristina Svobodová¹, Sabína Oreská¹, Lucia Vernerová², Dana Dlouhá³, Hana Wunsch², Karel Pavelka², Jiri Vencovsky⁴, Ladislav Šenolt⁵, Michal Vrablik⁶, Jaroslav Alois Hubáček³ and Michal Tomcik², ¹Institute of Rheumatology and Department of Rheumatology, ¹st Faculty of Medicine, Charles University, Prague, Czech Republic, ²Institute of Rheumatology and Department of Rheumatology, ¹st Faculty of Medicine, Charles University, Prague, Czech Republic, Prague, Czech Republic, ³Experimental Medicine Center, Institute for Clinical and Experimental Medicine, Prague, Czech Republic, ⁴Institute of Rheumatology, Praha ⁸, Czech Republic, ⁵Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ⁶³rd Department of Internal Medicine, General University Hospital and ¹st Faculty of Medicine, Charles University, Prague, Czech Republic, Prague, Czech Republic
Background/Purpose: Idiopathic inflammatory myopathies (IIM) involve muscle inflammation. MicroRNAs (miRNAs), such as miR-133a-3p and miR-1-3p, play a key role in gene regulation and muscle repair.…
Abstract Number: 0641 • ACR Convergence 2025
Safety and efficacy of autologous CD19-CAR T-cell therapy in patients with autoimmune disease – data from the CASTLE Phase I/II basket study
Melanie Hagen¹, Andreas Wirsching¹, Fabian Müller², Soraya Kharboutli³, Christina Bergmann¹, Sebastian Böltz¹, Jule Taubmann⁴, Carlo Tur¹, Laura Bucci¹, Simon Völkl³, Michael Aigner³, Sascha Kretschmann³, Louis Schuster⁴, Koray Tascilar⁴, Silvia Spoerl³, Ingrid Vasova³, Panagiotis Garantziotis¹, Daniel Aletaha⁵, Hans-Peter Kiener⁶, gerlando Natalello⁷, Franco Locatelli⁸, Maria Antonietta D'Agostino⁹, Aline Bozec¹, Linda Hanssens¹⁰, Dirk De Vries¹⁰, Ricardo Grieshaber-Bouyer¹¹, Andreas Mackensen¹² and Georg Schett¹³, ¹Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ²University Hospital of Erlangen, Erlangen, Germany, ³Department of Medicine ⁵ - Hematology and Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany, ⁴Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany, ⁵Medical University Vienna, Wien, Austria, ⁶Medical University of Vienna, Vienna, Austria, Vienna, Austria, ⁷Division of Rheumatology and Clinical Immunology - Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy, ⁸IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy, Rome, Italy, ⁹Catholic University of the Sacred Heart, Rome, Rome, Italy, ¹⁰Miltenyi Biomedicine, Bergisch Gladbach, Bergisch Gladbach, Germany, ¹¹University Hospital Erlangen, Erlangen, Germany, ¹²Department of Medicine ⁵ - Hematology and Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Uniklinikum Erlangen, Erlangen, Germany, ¹³Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany, Erlangen, Germany
Background/Purpose: Engineered T cells expressing a chimeric antigen receptor (CAR) binding CD19 are powerful tools to deplete B-cells, representing an attractive therapy for severe autoimmune…
Abstract Number: 0296 • ACR Convergence 2025
Aggregation of HARS1 and internalized antibodies in muscle biopsies of patients with antisynthetase syndrome and anti-Jo1(HARS) autoantibodies
maria Casal-Dominguez¹, Iago Pinal Fernandez², Katherine Pak², Travis Kinder¹, Jon Musai¹, Ana Matas-Garcia³, Gloria Garrabou⁴, Iban aldecoa⁵, Albert Selva-O´callaghan⁶, José Milisenda⁷ and Andrew Mammen⁸, ¹National Institutes of Health, Bethesda, MD, ²National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ³Muscle Research Unit, Internal Medicine Service, Hospital Clinic, Barcelona, Spain., Barcelona, Spain, ⁴Muscle Research Unit, Internal Medicine Service, Hospital Clinic, Barcelona, Spain., Barcelona, ⁵Pathology, Neurological Tissue Bank. Hospital Clinic of Barcelona-CDB-IDIBAPS/FCRB-University of Barcelona, Barcelona, Spain., Barcelona, ⁶Systemic Autoimmune Disease Section, Vall d'Hebron Institute of Research, Barcelona, Spain, Barcelona, ⁷Hospital Clinic de Barcelona, Barcelona, Spain, ⁸NIH, Bethesda, MD
Background/Purpose: Autoimmune inflammatory myopathies (IMs) comprise a diverse group of diseases that primarily affect the muscles and often involve the lungs, skin, and joints. Among…
Abstract Number: 0026 • ACR Convergence 2025
Spatial Proteomic-based Phenotyping of Muscle Stem Cells and their Niches in Myositis
Bilgesu Safak Tümerdem¹, Yi-Nan Li², Tim Filla³, Rolf Schröder⁴, Anna Brunn⁵, Alexandru Micu⁶, Ayla Nadja Stuetz¹, Laura-Marie Lahu⁶, Aleix Rius Rigau⁷, Christina Bergmann⁸, Alexandru-Emil Matei⁹, Jörg Distler¹⁰ and Andrea-Hermina Györfi¹¹, ¹Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University, Düsseldorf, Nordrhein-Westfalen, Germany, ²University Hospital of Düsseldorf, Düsseldorf, Germany, ³Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University., Düsseldorf, Germany, ⁴Institute of Neuropathology, Friedrich-Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ⁵Institute of Neuropathology, Heinrich-Heine University, University Hospital of Düsseldorf, Düsseldorf, Germany, ⁶Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University, Düsseldorf, Germany, ⁷Department of Internal Medicine ³, Rheumatology and Clinical Immunology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen. Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ⁸Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ⁹Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, and Fraunhofer Cluster of Excellence for Immune Mediated Diseases CIMD, Frankfurt am Main, Germany, Düsseldorf, Germany, ¹⁰University Hospital Duesseldorf and HHU, Duesseldorf, Germany, ¹¹Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University., Düsseldorf, Germany
Background/Purpose: Immune-mediated inflammatory myopathies (IIMs) are a heterogeneous group of diseases characterized by chronic inflammation, damage and impaired regeneration of the skeletal muscle leading to…
Abstract Number: 2078 • ACR Convergence 2025
Neutrophil Extracellular Traps from Patients with Idiopathic Inflammatory Myopathies Induce Interferogenic Responses in Macrophages and Myeloid Dendritic Cells
Yatzil Reyna Juárez¹, Jennifer Tiaré Balderas Miranda², Beatriz Alcalá Carmona³, María José Ostos Prado⁴, karina santana⁵, Diana Gómez-Martín⁶ and Jiram Torres Ruiz⁷, ¹Instituto Politècnico Nacional, Tultitlán de Mariano Escobedo, Mexico State, Mexico, ²Universidad Nacional Autónoma de México, Coyoacán, Federal District, Mexico, ³INCMNSZ, Cdmx, Distrito Federal, Mexico, ⁴Instituto Nacional De Ciencias Médicas Y Nutrición Salvador Zubirán, Mexico City, Distrito Federal, Mexico, ⁵INCMNSZ, Ciudad de México, Federal District, Mexico, ⁶INCMNSZ, Mexico city, Federal District, Mexico, ⁷INCMNSZ, Mexico, Federal District, Mexico
Background/Purpose: Dermatomyositis (DM) and anti-synthetase syndrome (AS) are idiopathic inflammatory myopathies (IIM) with perifascicular pathology involving vasculopathy, macrophages, dendritic cells and an overexpression of interferon-stimulated…
Abstract Number: 2017 • ACR Convergence 2025
Baseline and 2-year Follow-up of Pulmonary Function Among CTD-ILD Subtypes
Ivana Ilic, Anchal Sabharwal, Galina Marder and Sonali Narain, Northwell, Great Neck
Background/Purpose: Interstitial lung disease is a major cause of morbidity and mortality in patients with connective tissue disease (CTD-ILD). Evaluation of ILD severity and progression…
Abstract Number: 1210 • ACR Convergence 2025
Artificial Intelligence-Based Capillaroscopy and Laboratory Biomarkers to Predict Disease Activity in Idiopathic Inflammatory Myopathies: Preliminary Data from the CapIAMI Cohort
Gema María Lledó Ibáñez¹, Jorge Álvarez-Troncoso², Borja del Carmelo Gracia Tello³, Sergio Prieto-Gonzalez⁴, Elena Martínez Robles⁵, Diana Cristina-Varela⁶, Sebastián Molina-Ríos⁷, Luis Sáez Comet⁸, Eiman Soliman⁹, Franklin Uguña¹⁰, Miguel Antonio Mesa¹¹, Miguel Martín Cascón¹², Tânia Santiago¹³, Grace-Jimena Santamaría-Peñaloza¹⁴, Tsvetoslav Georgiev¹⁵, Santiago Bernal-Macias¹⁶, Begoña Marí-Alfonso¹⁷, Jesus Ballano Rodríguez-Solís¹⁸, Sally Patricia Pino Hernández¹⁹, Jacek Olas²⁰, Juan Manuel Mosquera Angarita²¹, Elena García- Guijarro²², Isabel Perales Fraile²³, Mayka Freire Dapena²⁴, Iván Pérez de Pedro²⁵, Luis Adrián Viteri Noël²⁶ and Eduardo Ramos ibáñez²⁷, ¹Hospital Clínic de Barcelona, Barcelona, Spain, ²Hospital Universitario La Paz, Madrid, Madrid, Spain, ³Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain, ⁴Hospital Clinic, Barcelona, Catalonia, Spain, ⁵Hospital Universitario La Paz, Madrid, Spain, ⁶Unidad de Reumatología, Hospital General de Medellín, Medellín, Colombia, Medellín, Colombia, ⁷Hospital Universitario Nacional de Colombia, Bogotá, Colombia, Bogotá, Colombia, ⁸Hospital Universitario Miguel Servet, Zaragoza, Spain, ⁹Alexandria Faculty of Medicine, Alexandria, Egypt, ¹⁰Sociedad Ecuatoriana de Reumatologia, Quito, Ecuador, ¹¹Universidad Pontificia Bolivariana, Medellin, Colombia, ¹²Hospital General Universitario Morales Meseguer, Murcia, Spain, ¹³ULS de Coimbra, Coimbra, Portugal, ¹⁴Hospital Metropolitano, Quito, Ecuador, ¹⁵Hospital St. Marina, Varna, Varna, Bulgaria, ¹⁶Hospital Universitario San Ignacio, Bogotá, Colombia, ¹⁷Hospital Universitario Parc Taulí, Barcelona, Spain, ¹⁸Hospital Universitario del Henares, Alcalá de Henares, Madrid, Spain, ¹⁹Asoreuma, Care for Kids, Bogota, Distrito Capital de Bogota, Colombia, ²⁰MCRIiR, Szpital Specjalistyczny im. J. Dietla w Krakowie, Cracow, Poland, ²¹Hospital Sant Joan de Déu, Barcelona, Spain, ²²Hospital Universitario Infanta Cristina, Madrid, Spain, ²³Hospital Universitario Infanta Sofía, Madrid, Spain, ²⁴Hospital Clínico Universitario de Santiago de Compostela, La Coruña, Spain, ²⁵Hospital Regional Universitario de Málaga, Málaga, Spain, ²⁶Hospital Universitario Ramón y Cajal, Madrid, Spain, ²⁷Capillary.io, Zaragoza, Aragon, Spain
Background/Purpose: Nailfold videocapillaroscopy (NVC) is a valuable non-invasive tool for assessing microvascular damage in autoimmune diseases. However, its application in idiopathic inflammatory myopathies (IIM) remains…
Abstract Number: 0887 • ACR Convergence 2025
Dynamics of cytotoxic and regulatory CD8 T cells underlies outcome in ICI-myotoxicity
Runci Wang¹, Chunyan Xiang², Adrien Procureur³, Julian Sanchez-Dal Cin³, Qing Wang⁴, Xinyue Lian⁵, Michelle Rosenzwajg³, Yves Allenbach⁶, Deepak Rao⁷, Qiong Fu⁸, Nan Shen⁹, Joe-Elie Salem³ and Shuang Ye¹⁰, ¹Department of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China (People's Republic), ²Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University (SJTUSM), shanghai, China (People's Republic), ³Sorbonne Université, Paris, France, ⁴Zhongshan Hospital, Shanghai, China (People's Republic), ⁵Renji Hospital, Shanghai, China (People's Republic), ⁶SORBONNE UNIVERSITE, Paris, France, ⁷Brigham and Women's Hospital, Boston, MA, ⁸Renji Hospital, Shanghai, Shanghai, China, ⁹Shanghai Jiang Tong University School of Medicine, Shanghai, China (People's Republic), ¹⁰Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China, Shanghai, Shanghai, China (People's Republic)
Background/Purpose: Immune checkpoint inhibitor (ICI) therapies for cancer can induce immune-related adverse events (irAEs) involving musculoskeletal (MSK) systems. ICI myotoxicity (ICI-M) can present as a…
Abstract Number: 0295 • ACR Convergence 2025
Multidimensional Analysis of Fatigue in Idiopathic Inflammatory Myopathies: Clinical, Psychological, and Sociodemographic Determinants
Manali Sarkar¹, Meera Shah², Vincenzo Venerito³, Vikas Agarwal⁴ and Latika Gupta⁵, ¹Sir H. N. Reliance Foundation Hospital and Research Centre, Mumbai, Maharashtra, India., Mumbai, Maharashtra, India, ²Indraprastha Apollo Hospital, New Delhi, Mumbai, Maharashtra, India, ³Univeristy of Bari "Aldo Moro", Italy, Bari, Bari, Italy, ⁴Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India, ⁵School 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: Fatigue significantly impacts quality of life in idiopathic inflammatory myopathies (IIM) but remains poorly understood. This study aimed to identify the key determinants of…
Abstract Number: 2077 • ACR Convergence 2025
Statin-Associated Immune-Mediated Necrotizing Myopathy in Native Americans
Tam Dinh¹, Evelyn Inga¹, Janelle Francisco¹, Yvonne Waters¹, Krystle Tapia², Maheswari Muruganandam³, N. Suzanne Emil¹, Frank O'Sullivan¹ and Wilmer Sibbitt³, ¹University of New Mexico, Albuquerque, ²University of New Mexico Hospital, Albuquerque, NM, ³University of New Mexico, Albuquerque, NM
Background/Purpose: Immune-mediated necrotizing myopathy (IMNM) is an aggressive subtype of idiopathic inflammatory myopathy (IIM) associated anti-3-hydroxy-3-methylglutaryl coenzyme A reductase (anti-HMGCR) antibodies. Recently there have been…

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