Abstracts tagged "immunology"

Abstract Number: 2601 • ACR Convergence 2025
Characterisation of immunometabolic reprogramming at the single cell level in patients with systemic lupus erythematosus and preclinical autoimmunity
Antonios Psarras¹, Sinibaldo Arocha², Liezel Tamon², David Ahern², Md Yuzaiful Md Yusof³, Ed Vital⁴ and Alexander Clarke⁵, ¹University of Oxford, Oxford, England, United Kingdom, ²University of Oxford, Oxford, United Kingdom, ³University of Leeds, Leeds, United Kingdom, ⁴University of Leeds, Leeds, England, United Kingdom, ⁵Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
Background/Purpose: Systemic lupus erythematosus (SLE) is characterised by innate immune activation and autoantibodies against nucleic self-antigens. The metabolic state of immune cells is emerging as…
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: 0897 • ACR Convergence 2025
APECED Disease Reorganizes The B Cell Compartment Toward Alternatively Activated Subsets
william Galbavy, Hyunjin Kim, Brian Klotz, Marine Malbec, Carley Tasker, Eva Conde, Andrea Vecchione, Seblewongel Asrat, Benjamin Daniel, Weikeat Lim, Andre Limnander and Jamie Orengo, Regeneron, Tarrytown, NY
Background/Purpose: Autoimmune PolyEndocrinopathy Candidiasis Ectodermal Dystrophy (APECED) is a rare syndrome of multi-organ autoimmunity driven by the presence of self-reactive T cells and autoantibodies caused…
Abstract Number: 1001 • ACR Convergence 2025
LBL-057, a Novel ADCC Enhanced PD-1 Agonist VHH-Fc Antibody
Hongyan Shang¹, Xiao Huang², Duqing Jiang¹, Jianming Sun², Yurong Qin², Guojin Wu², Chengze Ni¹, Jing Guan², Jordan Zhu³, Xiaoqiang Kang² and Hong Ling², ¹Nanjing Leads Biolabs Co., Ltd., nanjing, China (People's Republic), ²Nanjing Leads Biolabs Co., Ltd., Nan Jing, China (People's Republic), ³Nanjing Leads Biolabs Co., Ltd., Nan Jing
Background/Purpose: Programmed cell death protein 1 (PD-1) is expressed on activated T cells and serves as a key co-inhibitory checkpoint molecule in immune regulation. Aberrant…
Abstract Number: 1251 • ACR Convergence 2025
Steroids and Me (Sam): engaging and educating steroid-treated patients via patient advocacy partnerships and internet search channels.
Michelle Petri¹, Martha Stone², John Stone³, meredith Marinaro⁴, Matt Wilkinson⁵, Walter Lentfert⁶, Camille Kotton⁷, Jeffrey Gelfand⁸, Jane McDowell⁹ and Tricha Shivas¹⁰, ¹Johns Hopkins University School of Medicine, Timonium, MD, ²Steritas, LLC, Concord, MA, ³Massachusetts General Hospital , Harvard Medical School, Concord, MA, ⁴Novartis, Hartford, CT, ⁵UpThereEverywhere, London, United Kingdom, ⁶UpThereEverywhere, Charlotte, NC, ⁷Harvard Medical School, Boston, MA, ⁸UCSF Department of Neurology, Mill Valley, CA, ⁹Queens University Belfast, Belfast, United Kingdom, ¹⁰Foundation for Sarcoidosis Research, Chicago, IL
Background/Purpose: We report on two years of engagement with Sam, a patient-facing program to optimize the use of glucocorticoids and discontinue them when possible. We…
Abstract Number: 1741 • ACR Convergence 2025
Chronic JDM Plasma Proteomic Signature Reflects Inflammation from Immune and Tissue-resident Muscle and Skin
Marianne Kerski¹, Celine Berthier¹, Benjamin Klein¹, Li Chen², Christine Goudsmit², Sophia Matossian¹, Qinmengge Li³, Chioma Madubata⁴, Jessica Neely⁵, J. Michelle Kahlenberg¹ and Jessica Turnier⁶, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Ann Arbor, ³University of Michigan, Ypsilanti, MI, ⁴UCSF, SF, CA, ⁵UCSF, San Francisco, CA, ⁶University of Michigan, Saline, MI
Background/Purpose: Juvenile dermatomyositis (JDM) and childhood-onset SLE (cSLE) are systemic autoimmune diseases characterized by overlapping yet distinct clinical manifestations and treatment responses. In this study,…
Abstract Number: 2152 • ACR Convergence 2025
Blau Syndrome: features beyond the classic triad and proposal for clinical criteria
Narendra Bagri¹, Nawazish Shaikh², Manisha jana³, Sushain kalsotra⁴, Krithika Rajkumar², Madhumita Roy Chowdhury², Neerja Gupta², Danveer Bhadu⁵, Vishal Gupta² and Rohan Chawla², ¹All India Institute of Medical Sciences(AIIMS), New Delhi, Delhi, India, ²All India Institute of Medical Sciences, Delhi, Delhi, India, ³ALL INDIA INSTITUTE OF MEDICAL SCIENCES, Delhi, ⁴All India Institute of Medical Sciences, Delhi, India, ⁵All India Institute of Medical Sciences, New Delhi, New Delhi, Delhi, India
Background/Purpose: This study describes the characteristic clinical and radiological findings and outcomes of patients with Blau syndrome from a single tertiary care hospital.Methods: A retrospective…
Abstract Number: 2641 • ACR Convergence 2025
Cizutamig, a BCMA T-cell engager: preclinical to clinical translation of design optimization for the treatment of autoimmune diseases
Ricardo Grieshaber-Bouyer¹, Jamie Haddon², Maria Gabriella Raimondo³, Carlo Tur³, Sebastian Böltz³, Tobias Dashi⁴, Melanie Hagen⁵, Andreas Wirsching³, Tobias Rathe⁴, Xuan Wu⁶, Peter Wung², Francis Kim², Yonghong Zhu⁶, Ken Song², Timothy Lu⁷ and Georg Schett⁸, ¹University Hospital Erlangen, Erlangen, Germany, ²Candid Therapeutics, San Diego, CA, ³Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ⁴Department of Internal Medicine ³- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, Erlangen, Germany, ⁵Friedrich-Alexander-University Erlangen-Nuremberg, Department of Internal Medicine ³ - Rheumatology and Immunology, Erlangen, Germany, ⁶EpimAb Biotherapeutics, Shanghai, China (People's Republic), ⁷Candid Therapeutics, San Diego, ⁸Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany, Erlangen, Germany
Background/Purpose: Emerging data show the potential of T-cell engagers (TCEs) for deep B cell depletion to treat autoimmune diseases. Cizutamig is a purposefully designed BCMAxCD3…
Abstract Number: 0747 • ACR Convergence 2025
Patterns of Macrophage Polarization Induced by Serum from Patients with Giant Cell Arteritis and Takayasu’s Arteritis
Irene Carrión-Barberà¹, Ryan D. Stultz², David Cuthbertson³, Nader Khalidi⁴, Curry Koening⁵, Carol Langford⁶, Carol McAlear⁷, Paul Monach⁸, Larry Moreland⁹, Christian Pagnoux¹⁰, Philip Seo¹¹, Kenneth Warrington¹², Peter Merkel⁷ and Christian Lood¹³, ¹Department of Rheumatology. Hospital del Mar, Barcelona, Spain, ²University of Washington, Division of Rheumatology, Seattle, WA, ³University of South Florida, Tampa, ⁴Department of Medicine, McMaster University and St. Joseph’s Healthcare, Hamilton, Canada, ⁵University of Texas Dell Medical School, Austin, TX, ⁶Cleveland Clinic, Moreland Hills, OH, ⁷University of Pennsylvania, Philadelphia, PA, ⁸VA Boston Healthcare System, Boston, MA, ⁹University of Colorado, Denver, CO, ¹⁰Mount Sinai Hospital, University Health Network, Toronto, and Canadian Vasculitis Research Network (CanVasc), Toronto, ON, Canada, ¹¹Johns Hopkins University, Baltimore, MD, ¹²Mayo Clinic, ROCHESTER, MN, ¹³University of Washington, Division of Rheumatology, Seattle
Background/Purpose: Macrophages play a central role in the pathogenesis of large-vessel vasculitides, including giant cell arteritis (GCA) and Takayasu’s arteritis (TAK). Characterizing patterns of macrophage…
Abstract Number: 0898 • ACR Convergence 2025
Distinct B Cell and Plasma Cell Immunosuppression Strategies Eliminate Antigen-Specific Cells of the B Lineage
Carley Tasker¹, Nicholas Giovannone², Nyanza Rothman², Sofia Caruso², Julia Provino², Laura Johnsen², Johanna Napetschnig², Jamie Orengo¹, Christos Kyratsous², Andre Limnander¹, Katherine Cygnar² and Andrew Baik², ¹Regeneron, Tarrytown, NY, ²Regeneron Pharmaceuticals, Tarrytown
Background/Purpose: Development of effective targeting strategies to eliminate sources of antibody production presents utility in the treatment of autoimmune diseases driven by pathogenic autoantibodies. Furthermore,…
Abstract Number: 1003 • ACR Convergence 2025
Potent Engineering of Polyfunctional CD8+ T Cells by a Novel In Vivo CAR mRNA Product Candidate (CPTX2309) in a Targeted Lipid Nanoparticle (tLNP) Utilizing CellSeekerTM Technology
Yan Zhang¹, Brittany Ross¹, Aditi Upadhye¹, Diana Galvan¹, Shaun E Grosskurth¹, Yanjie Bao¹, Romina Riener¹, Annabel Wang¹, Aric Frantz¹, Gregor B Adams¹, Michael Rosenzweig¹, Ramin Farzaneh-Far¹, Priya Karmali¹, Adrian I Bot¹, Carl June² and Haig Aghajanian¹, ¹Capstan Therapeutics, San Diego, CA, ²University of Pennsylvania, Philadelphia, PA
Background/Purpose: A major objective in autoimmunity is immune reset, requiring autoreactive B cell depletion in tissues. We designed an in vivo CAR product candidate (CPTX2309)…
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…
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: 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: 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…

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