Abstracts tagged "interferon"

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: 1742 • ACR Convergence 2025
S100B in Childhood-onset Systemic Lupus Erythematosus: Associations with Disease Features, Interferon Levels, and Cognitive Functioning
Ganesh Ramanathan¹, Justine Ledochowski², Oscar Mwizerwa³, Tala El Tal⁴, Lawrence Ng⁵, Asha Jeyanathan⁶, Adrienne Davis⁶, Ann Yeh⁶, Linda Hiraki², Deborah Levy², Zahi Touma⁷, Joan Wither⁸, Busisiwe Zapparoli⁹, Ashley Danguecan¹⁰ and Andrea Knight¹⁰, ¹The Hospital for Sick Children, Brampton, ON, Canada, ²The Hospital for Sick Children, Toronto, ON, Canada, ³University of Toronto, The Hospital for Sick Children, Toronto, ON, Canada, ⁴Children's Hospital of Eastern Ontario (CHEO), Ottawa, ON, Canada, ⁵The Hospital for Sick Children, Toronto, Canada, Toronto, ON, Canada, ⁶The Hospital for Sick Children, Toronto, Canada, ⁷University of Toronto, Toronto, ON, Canada, ⁸University Health Network, Toronto, ON, Canada, ⁹The Hospital for Sick Children, Etobicoke, ON, Canada, ¹⁰Hospital for Sick Children, Toronto, ON, Canada
Background/Purpose: Cognitive impairment is common in childhood-onset systemic lupus erythematosus (cSLE), particularly in domains like executive function and attention. However, attributing cognitive difficulties to brain…
Abstract Number: 0916 • ACR Convergence 2025
UVB-Irradiated Keratinocyte Extracellular Vesicles Trigger Innate Immune Activation via Type I Interferons and STING Pathway
Ahmed Eldaboush¹, Darae Kang² and Victoria Werth³, ¹Department of Dermatology, Perelman Shool of Medicine, University of Pennsylvania, Philadelphia, PA, ²University of Pennsylvania, Potomac, MD, ³University of Pennsylvania, Wynnewood, PA
Background/Purpose: Extracellular vesicles (EVs) are cell-derived nanoparticles that mediate cell-cell communication. EVs are implicated in photosensitive autoimmune diseases like dermatomyositis (DM) and systemic lupus (SLE),…
Abstract Number: 0280 • ACR Convergence 2025
Sera from dermatomyositis patients induce muscle weakness via activation of type I interferon (IFN) receptors.
Suchada Kaewin¹, Cecilia Leijding², Kristofer Andreasson², Helene Alexanderson³, Stefano Gastaldello¹, Ingrid Lundberg² and Daniel C. Andersson², ¹Karolinska Institutet, inst fysiologi och farmakologi, Stockholm, Sweden, ²Karolinska Institutet, Stockholm, Sweden, ³Karolinska University Hospital, Stockholm, Sweden
Background/Purpose: Dermatomyositis (DM) is a major subtype of idiopathic inflammatory myopathies (IIMs) and characterized by muscle weakness, systemic inflammation and cutaneous lesions. Expression of type…
Abstract Number: 2647 • ACR Convergence 2025
Unlinked Paths to SLE: Divergent Associations of DNA Methylation and Polygenic Risk Scores with SLE Features
Holme Vestin¹, Nina Oparina¹, Elisabeth Skoglund¹, Maija-Leena Eloranta¹, Martina Frodlund², Iva Gunnarsson³, Chrisopher Sjöwall², Elisabet Svenungsson⁴, Lars Rönnblom¹, Juliana Imgenberg-Kreuz¹ and Dag Leonard¹, ¹Department of Medical Sciences, Uppsala University, Uppsala, Sweden, ²Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection/Rheumatology, Linköping University, Linköping, Sweden, ³Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ⁴Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: The aetiopathogenesis of SLE encompasses genetic and epigenetic factors, including hypomethylation of type I interferon (IFN) regulated genes (1) and the HLA-DRB1*03:01 haplotype, linked…
Abstract Number: 1723 • ACR Convergence 2025
Impaired Maintenance of X-Chromosome Inactivation in B Cells, But Not T Cells, Exacerbates Interferon-Driven Systemic Autoimmunity
Nikhil Jiwrajka¹, Claudia Lovell¹, Zowie Searcy¹, Katherine Forsyth¹, Emma Welter¹, Natalie Toothacre², Nuriban Valero-Pacheco¹, Katherine Premo¹ and Montserrat Anguera¹, ¹University of Pennsylvania, Philadelphia, PA, ²University of Pennsylvania, Philadelphia
Background/Purpose: Many systemic autoimmune diseases associated with chronic type 1 interferon (IFN) signaling, including SLE, SjD, and SSc, preferentially afflict females. The biological basis of…
Abstract Number: 0915 • ACR Convergence 2025
A fusion of TACI variant and anti-IFNAR antibody with greater therapeutic effect on related autoimmune disease models
Yuhao Qin¹, Huan Wang¹, Han Gao¹, Chongqi Zhang¹, Chengpan Wang¹, yanru fan¹, wei ye¹, yuan lin¹, Lu Su², Wenming Ren¹ and cheng liao¹, ¹Jiangsu Hengrui Pharmaceuticals Co., Ltd, Shanghai, China (People's Republic), ²Jiangsu Hengrui Pharmaceuticals, Shanghai, Shanghai, China
Background/Purpose: Pathological elevation of type I interferon (IFN-I) , B-cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL) has been robustly documented across multiple autoimmune…
Abstract Number: 0058 • ACR Convergence 2025
Training for increased inflammatory arthritis in mice is not modulated by type 1 interferon
Richard Bell¹, Mary Huang¹, Claire Weigert², Ruoxi Yuan², Toolika Singh², Seda Seren² and Lionel Ivashkiv¹, ¹Hospital for Special Surgery, New York, NY, ²Hospital for Special Surgery, New York
Background/Purpose: Disease flares, or episodic escalating inflammation, is a hallmark of autoimmune diseases, like Rheumatoid Arthritis (RA). They are particularly hard to predict and treat…
Abstract Number: 2598 • ACR Convergence 2025
Keratinocyte-Secreted Leukemia Inhibitory Factor Counteracts Type I IFN-Induced Antigen-Presenting Phenotype in Melanocytes: Utility in Cutaneous Lupus Skin
Rezvan Moallemian¹, Lin Zhang², Mehrnaz Gharaee-Kermani¹, Rachel Holle³ and J. Michelle Kahlenberg¹, ¹University of Michigan, Ann Arbor, MI, ²Michigan Medicine, Ann Arbor, MI, ³University of Michigan, Ann Arbor
Background/Purpose: Current therapies for cutaneous lupus erythematosus (CLE) are limited, highlighting the need for novel approaches. CLE lesions commonly exhibit photosensitivity and heightened type I…
Abstract Number: 1671 • ACR Convergence 2025
Emapalumab Treatment for Patients with Differing Presentations of Macrophage Activation Syndrome (MAS) Secondary to Still’s Disease: Results from a Pooled Analysis of Two Prospective Trials
Alexiei GROM¹, Sebastiaan Vastert², Jordi anton³, Pierre Quartier⁴, Bruno Fautrel⁵, Paul Brogan⁶, Edward Behrens⁷, Melissa Elder⁸, Francesca Minoia⁹, Pavla Dolezalova¹⁰, Robert Biesen¹¹, Masaki Shimizu¹², Uwe Ullmann¹³, Adnan Mahmood¹⁴, Andrew Danquah¹³, Elena Burillo¹³, Marco Petrimpol¹³, Steve Mallett¹⁵, Brian Jamieson¹⁶ and Fabrizio De Benedetti¹⁷, ¹Cincinnati Children’s Hospital Medical Center, Division of Rheumatology, Cincinnati, OH, ²University Medical Center Utrecht, Utrecht, Utrecht, Netherlands, ³Hospital Sant Joan de Düu. Universitat de Barcelona, Barcelona, Spain, ⁴Hôpital Necker-Enfants Malades, Paris, France, ⁵Sorbonne Université - APHP, Department of Rheumatology, Hôpital Pitié-Salpêtrière, Inserm UMRS ¹¹³⁶-⁵, PARIS, France, Paris, France, ⁶Great Ormond Street Hospital for Children NHS Foundation Trust and University College London Great Ormond Street Institute of Child Health, London, United Kingdom, ⁷CHOP, West Chester, PA, ⁸College of Medicine and Division of Pediatric Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of Florida, GAINESVILLE, FL, ⁹Pediatric Immuno-Rheumatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy, ¹⁰Paediatric Rheumatology and Autoinflammatory Diseases Unit, General University Hospital, Prague, Czech Republic, ¹¹Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany, Berlin, Germany, ¹²Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan, ¹³Sobi, Basel, Switzerland, ¹⁴Sobi, Stockholm, Sweden, ¹⁵Sobi, Stock, Sweden, ¹⁶Sobi Inc., Morrisville, NC, ¹⁷Bambino Gesu Children's Hospital, Rome, Rome, Italy
Background/Purpose: MAS is a life-threatening complication of Still’s disease characterized by systemic IFNg-driven hyperinflammation. Patients with Still’s disease may present with MAS at any disease…
Abstract Number: 0912 • ACR Convergence 2025
CD11c⁺CD21⁻ Autoimmune-Associated B Cells Derived from Double-Negative IgD⁻CD27⁻ Subsets Exhibit Enhanced IFNLR1 Expression in Systemic Lupus Erythematosus
Roukaya Yaakoub, Diana Alzamareh, Alexander Bae William and Jennifer Barnas, university of rochester, rochester, NY
Background/Purpose: Autoimmune-associated B cells (ABCs) are increasingly recognized for their role in the pathogenesis of systemic lupus erythematosus (SLE), yet their developmental origins and specific…
Abstract Number: 2497 • ACR Convergence 2025
Unraveling the Complexity of Interferon Responses in Peripheral Blood Mononuclear Cells in Systemic Sclerosis at Single-Cell Resolution
Pietro Bearzi¹, Elena Pachera², Astrid Hofman³, Laura Much⁴, Lumeng Li¹, Kristina Bürki³, Cosimo Bruni⁵, Mike Becker⁶, Anna-Maria Hoffmann-Vold⁷, Roberto Giacomelli⁸ and Oliver Distler⁹, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, the LOOP Zurich, Zürich, Switzerland, ²University Hospital Zurich, Zurich, Switzerland, ³Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, the LOOP Zurich, Zurich, Switzerland, ⁴Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ⁵University of Zurich, Zurich, Switzerland, ⁶Dept. of Rheumatology, University Hospital Zurich, Zürich, Switzerland, ⁷Oslo University Hospital, Oslo, Norway, ⁸i) Clinical and Research Section of Rheumatology and Clinical Immunology, Fondazione Policlinico Campus Biomedico; ii) Rheumatology and Clinical Immunology, Department of Medicine, School of Medicine, University of Rome "Campus Bio-Medico", Rome, Italy, ⁹Department of Rheumatology, University Hospital Zurich, University of Zurich, Switzerland, Zurich, Switzerland
Background/Purpose: Autoimmunity is a hallmark of SSc pathogenesis. Emerging evidence suggests that interferon (IFN) signaling plays a role in predicting SSc patients at risk of…
Abstract Number: 1668 • ACR Convergence 2025
A clinically validated assay for rapid determination of type I and type II interferon activity in pediatric inflammatory diseases
Evan Hsu¹, Courtney Leson², Amrita Basu³, Michael Lam⁴, Jian Yue⁴, Casey Rimland⁵, Rachel Weng⁴, Lauren Henderson⁶, Joyce Chang², Mary Beth Son⁴, Fatma Dedeoglu⁴, roshini Abraham³ and Pui Lee¹, ¹Boston Children's Hospital, Newton, MA, ²Boston Children's Hospital, Boston, ³Nationwide Children's Hospital, Columbus, OH, ⁴Boston Children's Hospital, Boston, MA, ⁵Brigham and Women's Hospital, Boston, ⁶Boston Children's Hospital, Watertown, MA
Background/Purpose: Type I interferons (IFN-I) and type II interferon (IFN-g) are essential to host defense but dysregulated production of these cytokines is increasingly recognized in…
Abstract Number: 0631 • ACR Convergence 2025
Antibodies to Type I and Type III Interferons at Diagnosis Predispose to Serious Infections on Follow Up in an Inception cohort of SLE (INSPIRE) from India.
Rudrarpan Chatterjee¹, Komal Singh², Ranjan Gupta³, Sudhir Sinha⁴ and Amita Aggarwal⁵, ¹Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow., Lucknow, Uttar Pradesh, India, ²Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Lucknow, Uttar Pradesh, India, ³All India Institute of Medical Sciences, New Delhi, Delhi, India, ⁴Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Lucknow, India, ⁵Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India, Lucknow, Uttar Pradesh, India
Background/Purpose: Patients with systemic lupus erythematosus (SLE) are predisposed to infections due to immune dysregulation. Autoantibodies to cytokines can cause serious infections, including severe COVID-19,…
Abstract Number: 2451 • ACR Convergence 2025
Tofacitinib Lowers Markers of Photosensitivity in Patients with Cutaneous Lupus Erythematosus
Amy Hurst¹, Mehrnaz Gharaee-Kermani¹, Yuli Cai², Rachael Bogle³, Lin Zhang¹, Amber Young², Craig Dobry¹, Srilakshmi Yalavarthi¹, Jason S. Knight¹, Johann Gudjonsson², Alex Tsoi³, Patricia Rohan⁴, Angela Kibiy⁵, Karen Boyle⁶, Margie Byron⁷, Laura Baird⁷ and J. Michelle Kahlenberg¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Ann Arbor, ³University of Michigan, Holland, OH, ⁴NIH, Bethesda, MD, ⁵NIH/NIAID, Rockville, MD, ⁶Rho, Inc, Durham, NC, ⁷Rho, Inc., Durham, NC
Background/Purpose: Photosensitivity lowers quality of life in patients with cutaneous lupus erythematosus (CLE) and puts patients with systemic lupus erythematosus (SLE) at risk of systemic…

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