Abstracts tagged "Dendritic cells"

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: 1852 • ACR Convergence 2025
Cellular Landscape of Cutaneous Lupus Erythematosus Revealed by Single-Cell RNA Sequencing and Spatial Transcriptomics in the Lupus Accelerating Medicine Partnership Cohort
Victoria Werth¹, Jun Kang², Lais Lopes Almeida Gomes³, Christopher Richardson⁴, Benjamin Chong⁵, J. Michelle Kahlenberg⁶, Joel Guthridge⁷, Wade DeJager⁸, Susan Macwana⁷, Caleb Marlin⁷, Judith James⁷, Rachael Bogle⁹, Alex Tsoi⁹ and Johann Gudjonsson⁶, ¹University of Pennsylvania, Wynnewood, PA, ²Johns Hopkins University School of Medicine, Baltimore, MD, ³University of Pennsylvania, Philadelphia, PA, ⁴University of Rochester Medical Center, Rochester, NY, ⁵University of Texas Southwestern Medical Center, Dallas, TX, ⁶University of Michigan, Ann Arbor, MI, ⁷Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁸Oklahoma Medical Research Foundation, Oklahoma City, ⁹University of Michigan, Holland, OH
Background/Purpose: Cutaneous lupus erythematosus (CLE) is a chronic inflammatory skin disease associated with systemic lupus erythematosus (SLE) and characterized by a prominent type I interferon…
Abstract Number: 1538 • ACR Convergence 2025
Safety, Pharmacodynamics, and Efficacy of a Novel Plasmacytoid Dendritic Cells Targeting Antibody in Healthy Adults and Patients with SLE or Cutaneous Lupus Erythematosus with Active Skin Lesions: A First-In-Human Study of KK4277
Minoru Hasegawa¹, Jun Kinoshita², Shigeki Otsubo³, Kana Yamada³ and Ehsanollah Esfandiari⁴, ¹Division of Medicine, University of Fukui, Yoshida-gun, Fukui, Japan, ²Kyowa Kirin Co., Ltd., Chiyoda-ku, Tokyo, Japan, ³Kyowa Kirin Co., Ltd., Tokyo, Japan, ⁴Kyowa kirin International plc, London, United Kingdom
Background/Purpose: Plasmacytoid dendritic cells (pDCs) are known to be the main source of type 1 interferon (IFN), which is the cause of various autoimmune diseases.…
Abstract Number: 0952 • ACR Convergence 2025
Therapeutic Potential of PaPE-1 in Reducing TLR7-Mediated Inflammation in a Murine Model of Lupus
Rachael Werner¹, Jena Wirth¹, Gary Gilkeson¹ and Melissa Cunningham², ¹Medical University of South Carolina, Charleston, SC, ²Medical University of SC, Charleston, SC
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex autoimmune disease that disproportionately affects women, underscoring the critical role of sex chromosomes and sex hormones—particularly estrogen—in…
Abstract Number: 0948 • ACR Convergence 2025
Presentation of Apoptotic Cell-Derived Autoantigens in Systemic Autoimmune Disease
Lance Peterson¹, Hannah KL De Cleene², Cheryl Lichti², David Bending³ and Kodi Ravichandran², ¹Rheumatology and Immunology, Pediatrics, Washington University School of Medicine, St. Louis, MO, ²Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, ³Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, England, United Kingdom
Background/Purpose: Systemic lupus erythematosus is a chronic, multisystem autoimmune disease characterized by the dysregulated clearance of dying cells, which results in the release of damage-associated…
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: 0863 • ACR Convergence 2025
Myeloid Dendritic Cell Subsets Characterize Muscle of Inclusion Body Myositis Patients and Correlate with KLRG1+ and TBX21+ CD8+ T cells
Raphael Kirou¹, Iago Pinal-Fernandez¹, Maria Casal-Dominguez¹, Katherine Pak¹, Chiseko Ikenaga², Christopher Nelke³, Stefania Dell'orso¹, Faiza Naz¹, Shamima Islam¹, Gustavo Gutierrez-Cruz¹, Werner Stenzel⁴, Albert Selva-O'Callaghan⁵, José Milisenda⁶ and Andrew Mammen⁷, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ²The University of Tokyo, Tokyo, Japan, ³Heinrich Heine University of Düsseldorf, Düsseldorf, Germany, ⁴Charite University, Berlin, Germany, ⁵Hospital Universitari Vall d'Hebron, Barcelona, Spain, ⁶Hospital Clinic de Barcelona, Barcelona, Spain, ⁷NIH, Bethesda, MD
Background/Purpose: Although inclusion body myositis (IBM) is an inflammatory myopathy, there are no effective immunomodulating agents, underlying the need for better understanding of its pathogenesis.…
Abstract Number: 0800 • ACR Convergence 2025
Microbiota-Derived Indole Promotes Collagen-Induced Arthritis Type-17 Immunity through Intestinal Dendritic Cell Cytokine Production
Jing Jing Li¹, Sucai Liu², Brenda Seymour³, Brendan Allen², Le Yiphyo², Cassandra Levens¹ and Kristine Kuhn⁴, ¹Rheumatology, Aurora, CO, ²University of Colorado School of Medicine, Aurora, CO, ³University of Colorado School of Medicine, Denver, CO, ⁴²⁰²² - ²⁰²³ / Adult/ University of Colorado, Aurora, CO
Background/Purpose: One of the most substantial impacts of microbe-host interactions at the intestinal mucosa is the development of type 17 immunity. A Th17 signature has…
Abstract Number: 0482 • ACR Convergence 2025
R-2487, a Synthetic Biology-Based Oral Immunotherapy, Promotes Treg-Mediated Immune Rebalancing and Reduces Disease Activity in Rheumatoid Arthritis Patients
Christian Furlan Freguia¹, Janet Stephens¹, Sathya Janardhanan¹, Chuck Bourne¹, Kaitlyn Skeie¹, Hudson Lowe¹, David Pascual² and Gary Fanger¹, ¹Rise Therapeutics, Rockville, MD, ²University of Wyoming, Laramie, WY
Background/Purpose: R-2487 is a novel, orally delivered, synthetic biology-based immunotherapy that utilizes Lactococcus lactis as a carrier vehicle to deliver Colonization Factor Antigen I (CFA/I)…
Abstract Number: 0060 • ACR Convergence 2024
Spectral Cytometry Shows Increased CD56hi NK Cells and New HLA-DR+CD56+ Phenotypes in RA
Estelle Khairallah¹, Haani Qudsi², Jihad Ben Gabr¹, Andras Perl³ and Christian Geier¹, ¹SUNY Upstate Medical University, Syracuse, NY, ²Norton College of Medicine, Syracuse, NY, ³SUNY, Syracuse, NY
Background/Purpose: Previous studies of RA patients have shown changes in NK cell populations (as defined by CD56 expression). The nature of these cellular changes remains…
Abstract Number: 0067 • ACR Convergence 2024
Psoriasis Patients at Risk for Psoriatic Arthritis Have Increased Levels of Circulating Pro-migratory Dendritic Cells
Shashank Cheemalavagu, Unnikrishnan Chandrasekharan, Oliver Wessely, Uyen Tran and M. Elaine Husni, Cleveland Clinic, Cleveland, OH
Background/Purpose: Early diagnosis of Psoriatic Arthritis (PsA) is critical for timely intervention to prevent poor clinical outcomes. Despite well-known clinical predictors of PsA, the mechanisms…
Abstract Number: 0071 • ACR Convergence 2024
Stage-Specific Roles of Interleukin-23/Interleukin-17 Axis and Type 1 Regulatory T Cells Dynamics in Axial Spondyloarthritis
Jina Yeo¹, Min-Gang Kim², Hee Sung Kwon³, Mi Ryoung Seo¹, Hyo-Jin Choi¹, YunJae Jung⁴, Eun Young Lee⁵ and Han Joo Baek⁶, ¹Division of Rheumatology, Department of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea, ²Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea, ³Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea, ⁴Department of Microbiology, College of Medicine, Gachon University, Incheon, Republic of Korea, ⁵3Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea, ⁶Division of Rheumatology, Department of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Inchon, South Africa
Background/Purpose: The interleukin (IL)-23/IL-17 pathway is central to axial spondyloarthritis (axSpA) pathogenesis, yet treatments targeting IL-23 show inconsistent effectiveness across spondyloarthritis subtypes. We hypothesized that…
Abstract Number: 0072 • ACR Convergence 2024
The Association Between Activation of Inflammasome and HLA-B27 in Dendritic Cells of Patients with Axial Spondyloarthritis
Jina Yeo¹, Min-Gang Kim², Hye Eun Lee³, Yeonsoo Yang², Mi Ryoung Seo¹, Hyo-Jin Choi¹, Eun Young Lee⁴, Dae Ho Lee³ and Han Joo Baek⁵, ¹Division of Rheumatology, Department of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea, ²Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea, ³Division of Endocrinology, Department of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea, ⁴3Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea, ⁵Division of Rheumatology, Department of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Inchon, South Africa
Background/Purpose: Axial spondyloarthritis (axSpA) exhibits a predominant involvement of the innate immune system, marked by abnormal functions of innate immune cell such as dendritic cells…
Abstract Number: 0962 • ACR Convergence 2024
Characterizing the Contribution of Myeloid Cells to Limited and Diffuse Cutaneous Systemic Sclerosis
Parker Jones¹, Salina Dominguez², Miranda Gurra³, Gaurav Gadhvi⁴, Tyler Therron², Kathleen Aren⁵, Carla Cuda³, Monique Hinchcliff⁶, Harris Perlman³, Hadijat Makinde³ and Deborah Winter⁷, ¹Northwestern University Feinberg School of Medicine, Chicago, IL, ²Northwestern University, Chicago, ³Northwestern University, Chicago, IL, ⁴University of Michigan, Ann Arbor, MI, ⁵Northwestern University Division of Rheumatology, Chicago, IL, ⁶Yale School of Medicine, Westport, CT, ⁷Northwestern University, Skokie, IL
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune disease characterized by multiorgan fibrosis. The two main subtypes are diffuse cutaneous SSc (dcSSc) and limited cutaneous SSc…
Abstract Number: 1542 • ACR Convergence 2024
Efficacy and Safety Results from a Phase 2 Trial of Daxdilimab in Patients with Systemic Lupus Erythematosus
Arezou Khosroshahi¹, Sarah Welsh², Liangwei Wang², David Larson² and Nisha Jain², ¹Emory University, Atlanta, GA, ²Amgen, Inc., Rockville, MD
Background/Purpose: SLE, an autoimmune disease affecting multiple organ systems, is characterized by periods of flares and remission. Type I interferon secreted at high levels by…

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