Abstracts tagged "innate immunity"

Abstract Number: 1800 • ACR Convergence 2025
The Role of Nociceptor-Expressed Piezo2 in Nervous System Immune Cell Infiltration in a Mouse Model of Osteoarthritis
Natalie Adamczyk¹, Terese Geraghty², Shingo Ishihara³, alia obeidat², Jun Li², Anne-Marie Malfait² and Rachel Miller¹, ¹Rush University Medical Center, Chicago, IL, ²Rush University Medical Center, Chicago, ³Rush University, Chicago
Background/Purpose: Osteoarthritis is one of the leading causes of chronic pain and disability worldwide with 500 million people affected. We have previously reported that nociceptor-conditional…
Abstract Number: 0925 • ACR Convergence 2025
Pathogenic role of SPP1+ macrophages in Rheumatoid Arthritis
Megan M. Hanlon¹, Catherine Manning¹, Kevin Wei¹, Ursula Fearon² and Ellen M. Gravallese³, ¹Brigham and Women's Hospital at Harvard Medical School, Boston, MA, ²Trinity College Dublin, Dublin, Dublin, Ireland, ³Brigham and Women's Hospital, Harvard Medical School, Chestnut Hill, MA
Background/Purpose: Synovial tissue macrophages (STMs) represent a mixed population of cells contributing to the pathogenesis of rheumatoid arthritis (RA). We identified an enrichment of Secreted…
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: 0921 • ACR Convergence 2025
Fibrinogen Co-Modified with Malondialdehyde-Acetaldehyde and Citrulline Promotes Pro-Inflammatory Macrophage Differentiation Through p38 and NF-κB Signaling
Hannah Johnson¹, Wenxian Zhou², Michael Duryee¹, Carlos Hunter¹, Geoffrey Thiele¹ and Ted Mikuls¹, ¹University of Nebraska Medical Center, Omaha, NE, ²University of Nebraska Medical Center, Bellevue, NE
Background/Purpose: Citrulline (CIT) and malondialdehyde-acetaldehyde (MAA) co-adduct native proteins in RA tissues to create a dual pro-inflammatory and pro-fibrotic milieu. Our previous work demonstrated that…
Abstract Number: 1602 • ACR Convergence 2025
Biomarkers of Innate Immune Activation to Identify Non-Response to Rituximab in Granulomatosis with Polyangiitis
Irene Carrión-Barberà¹, Jorge A. Gonzalez-Chapa², David Cuthbertson³, Nader Khalidi⁴, Curry Koening⁵, Carol Langford⁶, Carol McAlear⁷, Paul Monach⁸, Larry Moreland⁹, Christian Pagnoux¹⁰, Philip Seo¹¹, Ulrich Specks¹², Kenneth Warrington¹², Peter Merkel⁷ and Christian Lood², ¹Department of Rheumatology. Hospital del Mar, Barcelona, Spain, ²University of Washington, Division of Rheumatology, Seattle, 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
Background/Purpose: Innate immune activation plays a key role in granulomatosis with polyangiitis (GPA), contributing to vascular inflammation via neutrophil extracellular traps, immune complexation (IC), and…
Abstract Number: 0920 • ACR Convergence 2025
Functional Characterization of NEMO-NDAS Causing Variants in Patients’ PBMCs and in Wildtype and Mutant U937 Cells
Elizabeth Morgan¹, Bin Lin², Sara alehashemi¹, Adriana de Jesus¹, Keith Kauffman³, Christopher Friend¹, Farzana Bhuyan¹, Kader Gedik¹, Kat Uss¹, Lauren Krausfeldt⁴, Jason Brenchley⁵, Zoran Gucev⁶, Kathryn Cook⁷, Vafa Mammadova⁸, Gulnara Nasrullayeva⁸, Mariana Correia Marques⁹, Abigail Bosk¹⁰, Brian Nolan¹¹, Scott Canna¹², Maude Tusseau¹³, Andrea Bohrer¹⁴, Katrin Mayer-Barber¹⁵, Timothy Moran¹⁶, Andrew Oler⁴, Daniel Barber³ and Raphaela Goldbach-Mansky¹, ¹Translational Autoinflammatory Diseases Section (TADS), Laboratory of Clinical Immunology and Microbiology (LCIM), NIAID, NIH, Bethesda, MD, ²NIH, Bethesda, MD, ³T-Lymphocyte Biology Section, Laboratory of Parasitic Diseases, NIAID, NIH, Bethesda, MD, ⁴Bioinformatics and Computational Biosciences Branch, Office of Cyber Infrastructure and Computational Biology, NIAID, NIH, Bethesda, MD, ⁵Barrier Immunity Section, Laboratory of Viral Diseases, NIAID, NIH, Bethesda, MD, ⁶University Children's Hospital, Medical Faculty Skopje, Skopje, Macedonia, ⁷Akron Children’s Hospital, Akron, OH, ⁸Azerbaijan Medical University, Baku, Azerbaijan, ⁹Translational Genetics and Genomics Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ¹⁰Children’s National Hospital, Washington DC, ¹¹Lurie Children’s Hospital, Chicago, ¹²Children's Hospital of Philadelphia, Philadelphia, PA, ¹³Hôpital Femme-Mère-Enfant, Bron, France, ¹⁴Inflammation and Innate Immunity Unit, Laboratory of Clinical Immunology and Microbiology (LCIM), NIAID, NIH, Bethesda, MD, ¹⁵Inflammation and Innate Immunity Unit, Laboratory of Clinical Immunology and Microbiology (LCIM), Bethesda, MD, ¹⁶University of North Carolina School of Medicine, Chapel Hill, NC
Background/Purpose: NEMO-deleted 5 autoinflammatory syndrome (NEMO-NDAS) is an inflammatory disease caused by mosaic splice-site variants that lead to exon 5 skipping in IKBKG, encoding NEMO.…
Abstract Number: 1535 • ACR Convergence 2025
INB-619 – A Novel Gamma-Delta (γδ) T cell Engager to Target B cells in Autoimmune Diseases
Lei Ding, Yanjie Li, Mariska ter Haak, Sadhak Sengupta, Kate Rochlin and Lawrence Lamb, IN⁸bio, Inc., New York, NY
Background/Purpose: T cell engagers (TCEs) redirect T cells to bind target cells by linking T cells with target-associated antigens expressed on cells responsible for disease…
Abstract Number: 0910 • ACR Convergence 2025
Development of Four Distinct Human IgG4-Producing Mouse Models Recapitulating IgG4-Related Disease
MIN GANG KIM¹, JINA YEO², HEA RIM KANG³, JAE HYUN MOON³, Seon Uk Kim⁴, SeoYoon Ban⁵, MI HYEON KIM⁶ and Eun Young Lee⁷, ¹Seoul National University College of Medicine, Seoul, Republic of Korea, ²Division of Rheumatology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea, ³Seoul National University College of Medicine, Jongno-gu, Seoul, Republic of Korea, ⁴Seoul National University, Jongno-gu, Seoul, Republic of Korea, ⁵Department of Cancer biology, Graduate School of College of Medicine, Seoul National University, Korea, Seoul, Republic of Korea, ⁶Hallym university dongtan sacred heart hospital, Seocho-gu, Seoul, Republic of Korea, ⁷Seoul National University College of Medicine, Seoul, South Korea
Background/Purpose: IgG4-related disease (IgG4RD) is an immune-mediated fibroinflammatory condition characterized by multi-organ involvement, elevated serum IgG4, and IgG4-positive plasma cell infiltrates that form tumor-like lesions…
Abstract Number: 1145 • ACR Convergence 2025
Numerically Reduced but MSU Crystal-Activated NK Cells Promote Osteoclastogenesis in Gout
Ki-Jeong Park¹, Young-Nan Cho², Hye-Mi Jin², Hye-Min Jeong², Sung-Eun Choi³, Ji-Hyoun Kang¹, Dong-Jin Park¹, Tae-jong Kim⁴, Shin-Seok Lee⁵ and Yong-Wook Park⁶, ¹Chonnam National University Hospital, Gwangju, Republic of Korea, ²Chonnam National University Medical School, Gwangju, Republic of Korea, ³Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea, ⁴Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwang-Ju, South Korea, ⁵Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea, ⁶Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, South Korea
Background/Purpose: Gout is an inflammatory arthritis characterized by acute attacks, tophi formation, and bone destruction triggered by inflammatory responses to monosodium urate (MSU) crystals. Natural…
Abstract Number: 0571 • ACR Convergence 2025
Single-cell RNA Sequencing Highlights the Role of Innate Immunity in Identifying Candidates for Early Biologics Treatment in Axial Spondyloarthritis
Jaejoon Lee¹, A-Hyun Cho², Yu Jin Kim², Seulkee Lee³, Seonyoung Kang⁴, Hyungjin Kim⁵, Hoon-Suk Cha¹ and Hong-Hee Won², ¹Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea, ²Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea, ³Samsung Medical Center, Sunkyunkwan University School of Medicine, Seoul, South Korea, ⁴Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea, ⁵Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
Background/Purpose: Biologics have transformed the management of axial spondyloarthritis (axSpA). Currently, it is challenging to identify patients who would benefit from early biologics, resulting in…
Abstract Number: 1131 • ACR Convergence 2025
Variant Drives Tophus Formation through Dual Mechanisms: Extracellular Aggregation andvImpaired Macrophage Phagocytic Clearance
Yuqi wang¹, Lingjiang Zhu¹, Jinshuo Han², Junbin Qian³, Martin Herrmann⁴, Jing Xue¹ and Lei Liu¹, ¹The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (People's Republic), ²Zhejiang University, School of Medicine, Hangzhou, China (People's Republic), ³Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China (People's Republic), ⁴University Hospital Erlangen, Erlangen, Germany
Background/Purpose: While aggregated neutrophil extracellular traps (aggNETs) constitute the primary structural component of tophi, the susceptible population for tophaceous gout remains poorly characterized. We investigated…
Abstract Number: 0723 • ACR Convergence 2025
Neutrophil and Eosinophil Extracellular Traps in Eosinophilic Granulomatosis with Polyangiitis: Phenotype-based Characterization and Response to Mepolizumab
Michele Moretti¹, Francesco Ferro², Francesco Pisani³, Elisa Ferrigno³, Gaetano La Rocca⁴, Federica Di Cianni⁵, Rosaria Talarico⁶, Marta Mosca⁷, Chiara Baldini⁷ and Ilaria Puxeddu³, ¹University of Pisa, Rheumatology Unit, Pisa, Italy, ²Clinical and Experimental Medicine Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Pisa, Italy, ³University of Pisa, Pisa, Italy, ⁴University of Pisa, Rheumatology Unit, Pisa, Pisa, Italy, ⁵Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy, ⁶Azienda Ospedaliero Universitaria Pisana, Pisa, Pisa, Italy, ⁷University of Pisa, Pisa, Pisa, Italy
Background/Purpose: EGPA variably presents eosinophil (EOS)-related features and vasculitic manifestations. Recent introduction of mepolizumab (MEP) has revolutionized the treatment of EOS manifestations of EGPA. However,…
Abstract Number: L01 • ACR Convergence 2024
Targeted Exosite Inhibition of STING Activation of TBK1 Selectively Blocks Type I Interferon and NFκB Responses for Treatment of Autoimmune Diseases
Matthew Martin¹, Erik Wilker¹, Diana Gikunju¹, Usha Narayanan¹, Unnati Pandya¹, Vijetha Prakash¹, Ashley Edwards¹, Sameer Kawatkar¹, Tenghui Chen¹, Ragunath Chandran¹, Sai Sunder¹, Sumathi Biradar¹, Joerg Distler², Alexandra Joseph¹, Stephanos Ioannidis¹ and Bhavatarini Vangamudi¹, ¹Exo Therapeutics, Cambridge, MA, ²Exo Therapeutics, Düsseldorf, Germany
Background/Purpose: The cGAS-TBK1-STING pathway senses nucleic acids for innate immunity. Aberrant activation of the pathway is linked to autoimmune diseases including Systemic and Cutaneous Lupus…
Abstract Number: 0967 • ACR Convergence 2024
Transcriptional Heterogeneity of Immune Cells in the Esophagus of Systemic Sclerosis Patients: A Comparison of Upper and Lower Esophageal Regions
Hadijat Makinde¹, Miranda Gurra¹, Salina Dominguez², Matthew Dapas², Tyler Therron², Kathleen Aren³, Marie-Pier Tetreault², Monique Hinchcliff⁴, Deborah Winter⁵ and Harris Perlman¹, ¹Northwestern University, Chicago, IL, ²Northwestern University, Chicago, ³Northwestern University Division of Rheumatology, Chicago, IL, ⁴Yale School of Medicine, Westport, CT, ⁵Northwestern University, Skokie, IL
Background/Purpose: Systemic sclerosis (SSc) is characterized by an initial inflammatory phase followed by fibrosis. Esophageal dysfunction in SSc is associated with gastroesophageal reflux, leading to…
Abstract Number: 1701 • ACR Convergence 2024
STING Pathway Activity in SLE Patient Serum Correlates with NFkB Activation, Autoantibody Levels, and a Unique Cytokine Profile That Drives Disease Activity
Hyun Hee Kim¹, Haochen Jiang², Tatiana Ort³, Gary Sims³ and Richard Hanna⁴, ¹AstraZeneca, Gaithersburg, MD, ²University of Nebraska, Omaha, NE, ³Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, ⁴AstraZeneca, Dickerson, MD
Background/Purpose: Systemic lupus erythematosus (SLE) is a heterogenous systemic autoimmune disease which is associated with innate immune activation, type I IFN, inflammasome and NFkB-related cytokines.…

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