Abstracts tagged "immunology"

Abstract Number: 0902 • ACR Convergence 2025
A Novel Approach to study ANA+ B Cells in Lupus Integrating Flow Cytometry with Single-Cell culture
Deisy Muriel Velez arteaga¹, Yemil Atisha Fregoso², Hasret Gunduz³ and Betty Diamond⁴, ¹The Elmezzi School of Molecular Medicine, New Rochelle, NY, ²The Feinstein Institute, Long Island, NY, ³The Feinstein Institute, Long Island, ⁴The Feinstein Institutes for Medical Research, Manhasset, NY
Background/Purpose: Studying antinuclear antibody (ANA) producing B cells at the single-cell level offers critical insights into their fine specificity and functional characteristics. However, conventional techniques…
Abstract Number: 0782 • ACR Convergence 2025
Expansion of T-bet⁺ Age-Associated B Cells Is Associated with Clinical Complications in Still’s Disease
Krisztian Csomos¹, Boglarka Ujhazi¹, Mariana Correia Marques², Emily Rosenbaum¹ and Michael Ombrello³, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), NIH, Bethesda, MD, ²Translational Genetics and Genomics Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ³National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), North Bethesda, MD
Background/Purpose: Still’s disease is a rare and severe autoinflammatory disorder characterized by daily spiking fevers, arthritis, an evanescent rash, and prominent systemic features, including lymphadenopathy,…
Abstract Number: 0009 • ACR Convergence 2025
MRT-6160, a VAV1-Directed Molecular Glue Degrader, Attenuates T and B Cell Effector Functions and Inhibits Disease Progression in a Spontaneous MRL-Faslpr Mouse Model
Adam Cartwright¹, Lucas Gyger¹, Foram Desai², Shailee Vora², Anna Kostikova¹, Xudong Wang², Peter Trenh², Katie May², Sophia Nguyen², Chris King², Daniel Lam², Xavi Lucas¹, Mary Zlotosch², Elisa Liardo¹, Daric Wible², Ilaria Lamberto², Bradley Demarco², Debora Bonenfant¹, Sharon Townson², Eswar Krishnan², Filip Janku², John Castle¹, Laura McAllister¹, Alison Paterson² and Marisa Peluso², ¹Monte Rosa Therapeutics, Basel, Switzerland, ²Monte Rosa Therapeutics, Boston, MA
Background/Purpose: VAV1, an immune cell restricted guanine nucleotide exchange factor (GEF) and scaffolding protein, plays a critical role in mediating T- and B-cell receptor activity.…
Abstract Number: 2682 • ACR Convergence 2025
Methotrexate use and higher age impair humoral response against the recombinant herpes zoster vaccine (RZV) in Rheumatoid Arthritis: a prospective, randomized, placebo-controlled trial
Ana C Medeiros-Ribeiro¹, Lucas Farias², Nadia Emi Aikawa³, Sandra G Pasoto¹, Leonard V Kupa², Carla Saad¹, Andrea Shimabuco², Karina Bonfiglioli⁴, Diogo Domiciano⁴, Andre Franco⁴, Clovis Artur Silva⁵ and Eloisa Bonfa⁶, ¹Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, Sao Paulo, Brazil, ²Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, São Paulo, Sao Paulo, Brazil, ³Rheumatology Division and Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, Sao Paulo, São Paulo, Brazil, ⁴Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, Sao Paulo, Sao Paulo, Brazil, ⁵University of São Paulo, São Paulo, São Paulo, Brazil, ⁶Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil, São Paulo, Brazil
Background/Purpose: The recombinant vaccine against herpes zoster (HZ) (RZV) is recommended by ACR and EULAR for immunocompromised individuals. Short-term observational data from RA cohorts aged…
Abstract Number: 2277 • ACR Convergence 2025
Immunophenotyping of peripheral blood mononuclear cells reveals potential cellular biomarkers of disease in rheumatoid arthritis
John Bui¹, Jason Dubovsky², Jennifer Abrams³, Sara Charmsaz⁴, Michelle Blake¹, Joshua Beilke⁴, Anne-Renee van der Vuurst de Vries¹, Joseph Arron⁵, Jonathan Graf⁶ and Jeffrey Bluestone⁷, ¹Sonoma Biotherapeutics, Seattle, WA, ²Sonoma Biotherapeutics, South San Francisco, ³Sonomabio, San Francisco, CA, ⁴Sonoma Biotherapeutics, Seattle, ⁵Sonoma Biotherapeutics, San Francisco, CA, ⁶UCSF, San Francisco, CA, ⁷Sonoma Biotherapeutics, South San Francisco, CA
Background/Purpose: Emerging cell-based therapies for rheumatoid arthritis (RA) target the underlying immunologic activity of disease. Objective biomarkers to-date are downstream sequelae of RA immunologic drivers.…
Abstract Number: 1773 • ACR Convergence 2025
Redefining disease activity assessment in IgG4-Related Disease: The role of classical and novel biomarkers
Marta López¹, rafeal Benito-Melero², Laura Martinez-Martinez³, Hye Sang-Park⁴, sara Calleja³, Helena Codes Mendez⁵, Mar Concepción Martín³, Berta Magallares³, Ivan Castellví⁶, Ana Laiz⁵, Cesar Diaz³ and Hector Corominas⁷, ¹Complex Hospitalari Universitari Moisés Broggi, Barcelona, Spain, ²MD, barcelona, Spain, ³Hospital Santa Creu i Sant Pau, Barcelona, Spain, ⁴Hospital Santa Creu i Sant Pau, Barcelona, Catalonia, Spain, ⁵Sant Pau Hospital, Barcelona, Spain, ⁶Hospital de la Santa Creu i Sant Pau, Barcelona, Spain, barcelona, Spain, ⁷Hospital de Sant Pau, Barcelona, Spain
Background/Purpose: IgG4-related disease (IgG4-RD) is a systemic fibroinflammatory disorder characterized by elevated serum IgG4 levels and tissue infiltration by IgG4-positive plasma cells. Despite advances in…
Abstract Number: 1339 • ACR Convergence 2025
Inflammatory Rheumatic Diseases in IDH-mutated Myeloid Neoplasms: Clinical Spectrum and Response to IDH Inhibitors
Romain Stammler¹, Peter Chen², Orianne Debeaupuis², Lin Pierre Zhao¹, Mirabelle Ruyer Thompson¹, Eve Zakine¹, Julien Rossignol¹, Lauriane Goldwirt¹, Thibault Comont³, Mael Heiblig⁴, Lionel Ades¹, Marie Sebert¹, Jean-sébastien Allain⁵, Julien Campagne⁶, Marie Anne Couturier⁷, Marina Cumin⁸, Marie Caroline Dalmas⁹, Guillaume Denis¹⁰, Cecile Devloo¹¹, Adrien De Voeght¹², Louis Drevon¹, Pierre Duffau¹³, Sophie georgin-Lavialle¹⁴, Delphine Gobert¹, Noemie Abisror¹⁵, Olivier Kosmider¹⁶, Fréderic Rieux-Laucat², Estibaliz LAZARO¹⁷, Jean Guillaume Lopez¹⁸, Alexandre Maria¹⁹, Wladimir Mauhin²⁰, Julie Merindol²¹, Claire Merlot²², Tristan Mirault¹, Laurent Pascal²³, François Perrin²⁴, Emmanuel Raffoux¹, Ramy Rahme²⁵, Damien Roos-Weil¹, Benjamin Terrier²⁶, Benjamin Torreau²⁷, Olivier Fain¹, Pierre Fenaux¹, Pierre Hirsch¹, Vincent Jachiet¹, Jerome Hadjadj¹ and Arsène Mekinian²⁸, ¹Assistance Publique des Hôpitaux de Paris, Paris, France, ²Imagine Institute, Paris, France, ³Centre Hospitalier Universitaire Toulouse Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France, ⁴Lyon-Sud Hospital, Hospices Civils de Lyon, Paris and Université Claude Bernard, Lyon, France, ⁵Scorff-Lorient Hospital, Lorient, France, ⁶Hospital Robert Schuman, Metz, France, ⁷Centre Hospitalier Régional et Universitaire de Brest, Brest, France, ⁸Centre hospitalier de Libourne, Libourne, France, ⁹Strasbourg University Hospital Center, Strasbourg, France, ¹⁰Centre Hospitalier Rochefort, Rochefort, France, ¹¹Centre hospitalier de Dieppe, Dieppe, France, ¹²CHU of Liège, Liège, Belgium, ¹³Groupe Hospitalier Saint-André, Bordeaux, France, ¹⁴Sorbonne university, Tenon hospital, DMU³ID, CEREMAIA, ERN RITA, Paris, France, ¹⁵Internal Medicine, CHU Saint-Antoine,, Paris, France, ¹⁶AP-HP, Hopital Cochin, Institut Cochin, CNRS UMR⁸¹⁰⁴, INSERM U¹⁰¹⁶ Université Paris Cité Paris France., PARIS, France, ¹⁷Bordeaux University Hospital, Pessac, France, ¹⁸Dupuytren University Hospital, Limoges, France, ¹⁹Saint-Eloi Hospital, Montpellier, France, ²⁰Croix Saint Simon Hospital, Paris, France, ²¹University Hospital of Nice, Nice, France, ²²Centre hospitaliser d’Orléans, Orléans, France, ²³Hôpital Saint-Vincent de Paul, Lille, France, ²⁴Centre Hospitalier de Saint-Nazaire, Saint Nazaire, France, ²⁵Assistance Publique des Hôpitaux de Paris, Bobigny, France, ²⁶Cochin Hospital, Paris, France, ²⁷Internal Medicine and Immunology, CHU Tours, Tours, France, ²⁸Department of Internal Medicine, Inflammation-Immunopathology-Biotherapy Department (DMU i³), Saint-Antoine University Hospital, ⁷⁵⁰¹² Paris, France, Paris, France
Background/Purpose: Clonal hematopoiesis has emerged as a key contributor to systemic inflammation, bridging hematologic and immune-mediated inflammatory disorders (IMIDs). Isocitrate dehydrogenase 1 and 2 (IDH1/2)…
Abstract Number: 1004 • ACR Convergence 2025
Single-Cell Analysis Reveals Tissue Resident Memory T Cells Heterogeneity in the Joint
Yang Yang¹, Yusuke Miyashita², Madison Mangin³, Kellen Winden¹, Peter Nigrovic² and Margaret Chang¹, ¹Boston Children's Hospital, Boston, MA, ²Boston Children's Hospital, Brookline, MA, ³Boston Children's Hospital, St Simons Island, GA
Background/Purpose: Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by joint-specific memory, the phenomenon in which arthritis repeatedly flares in the same joints. We…
Abstract Number: 0899 • ACR Convergence 2025
Altered B cell Subsets Shared in Immune Checkpoint Inhibitor Associated Sicca Syndrome and Sjogren’s Disease
Caroline Atlas¹, Balakrishnan Kamaraj¹, Omid Jamshidi¹, Adam Mor¹, Yevgeniya Gartshteyn², Teja Kapoor³ and Robert Winchester¹, ¹Columbia University, New York, NY, ²Columbia University Medical Center, Glen Rock, NJ, ³Columbia University Irving Medical Center, New York, NY
Background/Purpose: Sicca symptoms may develop in the setting of immune checkpoint inhibitor (ICI) therapy and are clinically indistinguishable from those encountered in Sjogren’s disease (SjD).…
Abstract Number: 0781 • ACR Convergence 2025
Comprehensive mass cytometry analyses of disease-related cells in adult-onset Still’s disease
Hiroto Yoshida¹, Mayu Magi¹, Hiroya Tamai², Kotaro Matsumoto², Keiko Yoshimoto², Tetsuhiro Soeda¹ and Yuko Kaneko², ¹Chugai Pharmaceutical Co., Ltd. Product Research Dept., Yokohama, Kanagawa, Japan, ²Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
Background/Purpose: Adult-onset Still's Disease (AOSD) is a rare autoinflammatory disorder characterized by high fever, rash, and arthritis. Although overactivation of macrophages, an increase in specific…
Abstract Number: 0008 • ACR Convergence 2025
Characterization of S-1117, a novel pan-IgG protease engineered for reduced immunogenicity using the IMPACT platform
Julia Manasson¹, Liliana Sanmarco², Alex Pellerin², Maria Cecilia Ramello², Agustin Plasencia², Jordan Anderson², Tobias Green², Andita Newton², Ryan Peckner², Yi Xing², Heather Vital³, Nathan Higginson-Scott², John Sundy⁴, Kevin L. Otipoby² and Ivan Mascanfroni², ¹Seismic Therapeutic, New York, NY, ²Seismic Therapeutic, Watertown, MA, ³Seismic Therapeutic, Lexington, MA, ⁴Seismic Therapeutic, Durham, NC
Background/Purpose: Pathogenic autoantibodies are key effectors of inflammation, promoting tissue damage in autoantibody-mediated diseases such as inflammatory myopathies, lupus nephritis, Sjogren’s syndrome, antiphospholipid syndrome, and…
Abstract Number: 2665 • ACR Convergence 2025
Preexisting Antibodies Against Vaccine Antigens Are Preserved In Patients With Systemic Lupus Erythematosus and Sjögren’s Disease Upon Ianalumab Treatment While Autoantibodies Decline
Thomas Dörner¹, Nan Shen², Thomas Grader-Beck³, Caroline Walter⁴, Catherine Wioland⁴, Celine Rauld⁴, Patrick Schmutz⁴, Simone Riek⁴, Wolfgang Hueber⁵, CAROLE SIPS⁶, Stephen Oliver⁴, Carol Lau⁷, Claire Bonal⁶ and Isabelle Isnardi⁸, ¹Charite Universitétsmedizin Berlin, Germany and DRFZ, Berlin, Berlin, Germany, ²Shanghai Jiang Tong University School of Medicine, Shanghai, China (People's Republic), ³Johns Hopkins, Reisterstown, MD, ⁴Novartis Pharma AG, Basel, Switzerland, ⁵Novartis Pharmaceuticals, Basel, Switzerland, ⁶Novartis Pharma AG, Basel, Switzerland, Basel, Switzerland, ⁷Novartis Pharmaceuticals Corporation, East Hanover, ⁸Novartis, Gueberschwihr, France
Background/Purpose: Ianalumab, an afucosylated mAb, depletes B cells via enhanced antibody (Ab)-dependent cellular cytotoxicity and blocks B cell-activating factor (BAFF): BAFF-receptor (BAFF-R) mediated signals.1 It…
Abstract Number: 2168 • ACR Convergence 2025
Training Objective Structured Clinical Examinations in a Clinical Immunology department: Expectations and Perceptions of Medical students at Graduating Level
Aïcha Kante¹, Damien Sène², Venceslas Bourdin³, Dikélélé Elessa³, William Bigot³, Valentine Pagis³, Frédéric Truffinet³, Stéphane Mouly³ and Cloé Comarmond¹, ¹Department of Internal Medicine, Lariboisière University Hospital, Université Paris Cité, Assistance Publique Hôpitaux de Paris, INSERM U⁹⁴², Paris, France, ²Department of Internal Medicine, Lariboisière University Hospital, Université Paris Cité, Assistance Publique Hôpitaux de Paris, Paris, Ile-de-France, France, ³Department of Internal Medicine, Lariboisière University Hospital, Université Paris Cité, Assistance Publique Hôpitaux de Paris, Paris, France
Background/Purpose: Objective Structured Clinical Examinations (OSCEs) are based on various starting clinical scenarios conducted in a simulated environment that allow for the standardized assessment of…
Abstract Number: 1755 • ACR Convergence 2025
Multi-Omic Profiling Of CD8+ T Cells In Axial Spondyloarthritis (axSpA) And Reactive Arthritis (ReA) Implicates Common Pathways
Zoya Qaiyum¹, Michael Tang², Shirin Soleimani³, Addison Pacheco², Melissa Lim⁴, Fataneh Tavasolian⁴, Trevor Pugh³ and Robert Inman², ¹Schroeder Arthritis Institute, University Health Network, Toronto, ON, Canada, ²University Health Network, Toronto, ON, Canada, ³Princess Margaret Cancer Centre, University Health Network, Toronto, Canada, ⁴University of Toronto, Toronto, ON, Canada
Background/Purpose: The strong clinical and genetic associations between axial spondyloarthritis (axSpA) and inflammatory bowel disease (IBD) underscore the pathogenic role of the gut-joint axis. We…
Abstract Number: 1314 • ACR Convergence 2025
Protein-Specific Anti-Malondialdehyde-Acetaldehyde Antibodies and Cardiovascular Disease Outcomes in Rheumatoid Arthritis
Julia King¹, Michael Duryee¹, Punyasha Roul², Katherine Wysham³, Grant Cannon⁴, Gary Kunkel⁵, John Richards⁶, Isaac Smith⁷, Beth Wallace⁸, Gail Kerr⁹, Andreas Reimold¹⁰, Pascale Schwab¹¹, Daniel Anderson¹², Wenxian Zhou¹³, Joshua Baker¹⁴, Ted Mikuls¹, Bryant England¹ and Tate Johnson¹, ¹University of Nebraska Medical Center, Omaha, NE, ²UNMC, Omaha, NE, ³VA PUGET SOUND/UNIVERSITY OF WASHINGTON, Seattle, WA, ⁴University of Utah and Salt Lake City VA, Salt Lake City, UT, ⁵University of Utah and George E Wahlen VAMC, Salt Lake City, UT, ⁶Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, ⁷Duke University Hospital, Durham, NC, ⁸Michigan Medicine, VA Ann Arbor Healthcare System, Ann Arbor, MI, ⁹Washington DC VAMC/Georgetown and Howard Universities, Washington, DC, ¹⁰Dallas VA Medical Center, Dallas, TX, ¹¹VA Portland and Oregon Health & Science University, Portland, OR, ^120587964, Durham, NC, ¹³University of Nebraska Medical Center, Bellevue, NE, ¹⁴University of Pennsylvania, Philadelphia, PA
Background/Purpose: Cardiovascular disease (CVD) remains the leading cause of death in rheumatoid arthritis (RA), driven primarily by atherosclerotic CVD (ASCVD) and heart failure (HF). Malondialdehyde-acetaldehyde…

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