Abstracts tagged "Dendritic cells"

Abstract Number: 0770 • ACR Convergence 2020
Effect of Citrullination on the Processing and Presentation of Rheumatoid Arthritis Autoantigens
Ashley Curran¹, Jonathan Crawford¹ and Erika Darrah¹, ¹Division of Rheumatology, Johns Hopkins University, Baltimore, MD
Background/Purpose: Citrullinated proteins are hallmark targets of the autoimmune response in rheumatoid arthritis (RA), but the mechanism by which immune tolerance is broken to these self-proteins…
Abstract Number: 0786 • ACR Convergence 2020
A Combination of Dimensionality Reduction Techniques Reveals Novel HLA-DR+ ‘Candidate’ Antigen-Presenting Cell Subsets (cAPC) in Patients with Rheumatoid Arthritis (RA)
Christian Geier¹, Jon Giles¹, Samantha Gaines², Christopher Depender¹, Joan Bathon¹ and Robert Winchester¹, ¹Division of Rheumatology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, ²Division of Rheumatology, Columbia University Vagelos College of Physicians and Surgeons, New York
Background/Purpose: The presentation of MHC-peptide complexes to T lymphocytes via antigen-presenting cells (APC) is a crucial step in the initiation of immune responses. Dendritic cells…
Abstract Number: 0839 • ACR Convergence 2020
Single-Cell Transcriptomics of Mouse and Human Lupus Nephritis Identifies Conserved Myeloid Populations Across Species
Paul Hoover¹, Michael Peters², David Lieb³, Rakesh Mishra⁴, Nir Hacohen² and Anne Davidson⁵, ¹Brigham and Women's Hospital, Boston, MA, ²Broad Institute, Boston, ³Broad Institute, Boston, MA, ⁴Feinstein Institute, Manhasset, NY, ⁵Northwell Health, New York
Background/Purpose: We recently identified novel immune cell states in the kidneys of lupus nephritis patients (Arazi et al, Nature Immunology 2019). To determine the similarities…
Abstract Number: 0851 • ACR Convergence 2020
Iberdomide Decreases B Cells and Plasmacytoid Dendritic Cells, Increases Regulatory T Cells and IL-2, and Has Enhanced Clinical Efficacy in Active Systemic Lupus Erythematosus Patients with High Aiolos or the IFN Gene Expression Signature
Peter Lipsky¹, Ronald van Vollenhoven², Thomas Dörner³, Victoria Werth⁴, Joan Merrill⁵, Richard Furie⁶, Milan Petronijevic⁷, Benito Velasco Zamora⁸, Maria Majdan⁹, Fedra Irazoque-Palazuelos¹⁰, Robert Terbrueggen¹¹, Nikolay Delev¹², Michael Weiswasser¹², Shimon Korish¹², Nataliya Agafonova¹², Mark Stern¹³, Sarah Hersey¹³, Ying Ye¹³, Allison Gaudy¹², Zhaohui Liu¹², Shaojun Tang¹³ and Peter Schafer¹², ¹RILITE Foundation, Charlottesville, VA, ²Amsterdam University Medical Centers, Amsterdam, Netherlands, ³DRFZ and Charité University Hospitals, Berlin, Germany, ⁴University of Pennsylvania and the Michael J. Crescenz VA Medical Center, Philadelphia, PA, ⁵Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁶Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY, ⁷Military Medical Academy, Belgrade, Serbia, ⁸Instituto CER S.A., Buenos Aires, Argentina, ⁹Medical University of Lublin and Samodzielny Publicnzy Szpital Kliniczny Nr 4 w Lublinie, Lublin, Poland, ¹⁰Centro de Investigación y Tratamiento Reumatológico S.C, Miguel Hidalgo, Mexico, ¹¹DxTerity Diagnostics Inc, Rancho Dominguez, ¹²Bristol Myers Squibb, Princeton, ¹³Bristol-Myers Squibb, Princeton
Background/Purpose: Iberdomide is a high-affinity cereblon ligand that promotes ubiquitination and proteasomal degradation of Ikaros (IKZF1) and Aiolos (IKZF3), transcription factors linked to the genetic…
Abstract Number: 0861 • ACR Convergence 2020
Hydroxychloroquine Use Is Associated with Diminished Type I Interferon-related Pathways in Systemic Lupus Erythematosus Patients
Samantha Slight-Webb¹, Kevin Thomas¹, Rufei Lu¹, Susan Macwana¹, Joan Merrill¹, Cristina Arriens¹, Eliza Chakravarty¹, Teresa Aberle¹, Holden Maecker², Paul Utz³, Joel Guthridge¹ and Judith James⁴, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, CA, ³Stanford University School of Medicine, Stanford, CA, ⁴Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation;Department of Pathology, University of Oklahoma Health Sciences Center;Department of Medicine, University of Oklahoma Health Sciences Center, Edmond, OK
Background/Purpose: Hydroxychloroquine (HCQ) has been used for decades to treat systemic lupus erythematosus (SLE) and is associated with decreased lupus flares and damage. However, despite…
Abstract Number: 0979 • ACR Convergence 2020
The Identification of Shared and Unique Myeloid Cell States in Pre- and Post-nephritic Lupus Mouse Models, Sle.Yaa1 and NZBW
Paul Hoover¹, Michael Peters², David Lieb³, Heather Geiger⁴, Rakesh Mishra⁵, Nir Hacohen² and Anne Davidson⁶, ¹Brigham and Women's Hospital, Boston, MA, ²Broad Institute, Boston, ³Broad Institute, Boston, MA, ⁴New York Genome Center, New York, NY, ⁵Feinstein Institute, Manhasset, NY, ⁶Northwell Health, New York
Background/Purpose:Poor renal prognosis in lupus nephritis (LN) is associated with an abundance of renal macrophages and dendritic cells (DCs) but the role of these cells…
Abstract Number: 58 • 2019 ACR/ARP Annual Meeting
In Rheumatoid Arthritis (RA) Decreases in Conventional Dendritic Cell Lineages Are Associated with Adverse Measures of Myocardial Function and Expansions of Anomalous HLA-DR+ Myeloid Subsets
Christian Geier¹, Jon Giles ², Gilad Gibor ³, Joan Bathon ² and Robert Winchester ³, ¹Columbia University, New York, NY, ²Division of Rheumatology, Columbia University, New York, NY, ³Columbia University, New York
Background/Purpose: Dendritic cells (DC) are specialized antigen-presenting cells (APC) that have a central role in the initiation of immune responses. However, prior studies showed numeric decreases…
Abstract Number: 984 • 2019 ACR/ARP Annual Meeting
Important Role of CD11c+ Cells in Inflammatory Arthritis
Antonia Puchner¹, Elisabeth Simader ¹, Victoria Saferding ², Gerhard Kroenke ³, Rene Pfeifle ⁴, Daniel Aletaha ¹, Josef Smolen ¹ and Stephan Blueml ¹, ¹Medical University of Vienna, Vienna, Austria, ²Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria, ³Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nuremberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Austria, ⁴University Hospital Erlangen, Erlangen, Germany
Background/Purpose: Dendritic cells (DCs) are important antigen presenting cells (APCs) and therefore they play an important role in bridging the innate and the adaptive immune…
Abstract Number: 1064 • 2019 ACR/ARP Annual Meeting
CD123+ Plasmacytoid Dendritic Cells from Systemic Sclerosis Patients Are Susceptible to the Cytotoxic Activity of Tagraxofusp, a CD123-Targeted Therapy
Ross Lindsay¹, Janice Chen ¹, Robert Spiera ², Jessica Gordon ², Marie-Dominique Ah Kioon ³, Franck Barrat ³ and Christopher Brooks ¹, ¹Stemline Therapeutics, New York, ²Hospital for Special Surgery, New York, NY, ³HSS Research Institute, Hospital for Special Surgery, New York
Background/Purpose: Tagraxofusp is a novel targeted therapy directed to the interleukin-3 receptor (CD123). Tagraxofusp is comprised of human IL-3 recombinantly fused to a truncated diphtheria…
Abstract Number: 1022 • 2018 ACR/ARHP Annual Meeting
TNF-α Regulates Plasmacytoid Dendritic Cells By Suppressing IFN-α Production and Enhancing Th1 and Th17 Cell Differentiation
Antonios Psarras^1,2,3, Agne Antanaviciute⁴, Ian Carr⁴, Miriam Wittmann^1,2, Paul Emery^1,5, George C Tsokos⁶ and Edward M Vital^1,2, ¹Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, United Kingdom, ²NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom, ³Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA, ⁴Leeds Institute for Data Analytics, University of Leeds, Leeds, United Kingdom, ⁵Leeds Musculoskeletal Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom, ⁶Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
Background/Purpose: Human plasmacytoid dendritic cells (pDCs) play a vital role in modulating immune responses. pDCs can produce massive amounts of type I IFNs in response…
Abstract Number: 1023 • 2018 ACR/ARHP Annual Meeting
Plasmacytoid Dendritic Cells That Infiltrate the Lungs Produce Profibrotic Cytokines and Chemokines in Bleomycin-Induced Model of Systemic Sclerosis
Isela Valera¹ and Ram R. Singh², ¹Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, UCLA, Los Angeles, CA, ²UCLA, Los Angeles, CA
Background/Purpose: In bleomycin-induced model of systemic fibrosis and patients with systemic sclerosis, plasmacytoid DC (pDC) are unaffected or reduced systemically (spleen/peripheral blood) but they increase…
Abstract Number: 1111 • 2018 ACR/ARHP Annual Meeting
CBS004, a Novel Monoclonal Antibody Against Bdca-2 Inhibits TLR-Induced Activation of Human pDC in Vitro and In Vivo. a Novel Therapeutic Target for Systemic Sclerosis
Clarissa Corinaldesi¹, Yasser M El-Sherbiny², Gemma Migneco³, Rebecca Ross¹, Steve Holmes⁴, Clive McKimmie⁵ and Francesco Del Galdo¹, ¹Leeds Biomedical Research Centre and Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, United Kingdom, ²NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals, NHS Trust, Leeds, United Kingdom, ³Institute of Cancer and Pathology, University of Leeds, Leeds, United Kingdom, ⁴Capella Biosciences, LTD, London, United Kingdom, ⁵Virus Host Interactions Team, Section of Infection and Immunity, University of Leeds, Leeds, United Kingdom
Background/Purpose: Human plasmacytoid dendritic cells (pDCs) have been implicated in the pathogenesis of Systemic Sclerosis (SSc) through their ability to infiltrate the skin and secrete…
Abstract Number: 2082 • 2018 ACR/ARHP Annual Meeting
ERAP1 Deficiency Partially Relieves HLA-B27-Induced ER Stress and IL-23 Expression, but Does Not Restore Dendritic Cell Function in Experimental Spondyloarthritis
Tri Tran¹, Vance Holt², Tejpal Gill¹, Joshua R. Bennett², Joel Taurog³ and Robert Colbert⁴, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ²National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ³Dept Int Med-Rheum Dis Div, University of Texas Southwestern Medical Center, Dallas, TX, ⁴National Institute of Arthritis and Musculuskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
Background/Purpose: Preliminary results suggest that endoplasmic reticulum (ER) aminopeptidase 1 (ERAP1) deficiency partially protects HLA-B27/human b2m transgenic (B27-Tg) rats from spondyloarthritis (SpA) as evidenced by…
Abstract Number: 2121 • 2018 ACR/ARHP Annual Meeting
Serum High Type I Interferon Is Associated with Active Proliferative Lupus Nephritis in Lupus Patients Accompanied with High Interferon Signature Gene Expression and Plasmacytoid Dendritic Cell Infiltration in Lupus Nephritis Kidney
Taro Iwamoto¹, Jessica M. Dorschner², Mark A. Jensen¹, Shanmugapriya Selvaraj³, Danielle Vsetecka², Shreyasee Amin², Ashima Makol², Floranne C. Ernste², Thomas Osborn², Kevin Moder², Vaidehi R. Chowdhary², Valeria Mezzano⁴, Peter M. Izmirly⁵, H. Michael Belmont⁵, Robert M. Clancy¹, Jill P. Buyon¹, Ming Wu³, Cynthia A. Loomis³ and Timothy B. Niewold¹, ¹Colton Center for Autoimmunity, New York University, New York, NY, ²Mayo Clinic College of Medicine, Rochester, MN, ³Department of Pathology, New York University, New York, NY, ⁴Division of Cardiology, New York University, New York, NY, ⁵Division of Rheumatology, New York University, New York, NY
Background/Purpose: Despite recent advancements in immunosuppressive therapies, lupus nephritis (LN) remains one of the most severe organ manifestations in systemic lupus erythematosus (SLE). High type…
Abstract Number: 97 • 2018 ACR/ARHP Annual Meeting
Enhanced IFN-α Production By Plasmacytoid Dendritic Cells Is Associated with Increased Toll-like Receptor 7 Retention in the Lysosomes and Exosure to Type I IFN in Systemic Lupus Erythematosus
Goh Murayama¹, Asako Chiba², Ayako Makiyama², Ken Yamaji¹, Naoto Tamura¹ and Sachiko Miyake², ¹Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan, ²Immunology, Juntendo University School of Medicine, Tokyo, Japan
Background/Purpose: Type I interferon(IFN) appears to contribute to the development of systemic lupus erythematosus (SLE). Overexpression of type I IFN regulated genes has been reported…

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