Abstracts tagged "Dendritic cells"

Abstract Number: 1404 • ACR Convergence 2020
Investigating the Dermatomyositis Skin Inflammatory Infiltrate Using Image Mass Cytometry
Jay Patel¹, Spandana Maddukuri², Yubin Li³, Christina Bax⁴ and Victoria Werth³, ¹University of Pennsylvania and the Michael J. Crescenz VA Medical Center, Philadelphia, ²University of Pennsylvania and the Michael J. Crescenz VA Medical Center, Montville, NJ, ³University of Pennsylvania and the Michael J. Crescenz VA Medical Center, Philadelphia, PA, ⁴University of Pennsylvania, Department of Dermatology, Philadelphia
Background/Purpose: Dermatomyositis (DM) is a systemic autoimmune disease affecting the skin and muscles, among other organs. The inflammatory infiltrate in skin has not been fully…
Abstract Number: 1949 • ACR Convergence 2020
CB2 Receptor Distribution and Effects of LenabasumTM in Dermatomyositis In Vitro
Spandana Maddukuri¹, Jay Patel², Christina Bax³, Maria Wysocka³ and Victoria Werth⁴, ¹University of Pennsylvania and the Michael J. Crescenz VA Medical Center, Montville, NJ, ²University of Pennsylvania and the Michael J. Crescenz VA Medical Center, Philadelphia, ³University of Pennsylvania, Department of Dermatology, Philadelphia, ⁴University of Pennsylvania and Corporal Michael J. Crescenz Veterans Administration Hospital, Philadelphia
Background/Purpose: Dermatomyositis (DM) patients report poor quality of life due to disease activity and persistent itch. Lenabasum is an oral non-immunosuppressive, non-psychoactive cannabinoid type 2…
Abstract Number: 0067 • ACR Convergence 2020
Functionally Mature CD1c+ Dendritic Cells Contribute to Synovial Inflammation in Rheumatoid Arthritis via STAT3
Mary Canavan¹, Viviana Marzaioli¹, Vipul Bhargava², Sunil Nagpal³, Phil Gallagher⁴, Conor Hurson⁵, Ronan Mullan⁶, Douglas Veale⁷ and Ursula Fearon¹, ¹Molecular Rheumatology, Trinity College Dublin, Dublin, Dublin, Ireland, ²Janssen Research & Development, Springhouse, PA, ³Janssen Research & Development, Collegeville, PA, ⁴St Vincents University Hospital, UCD, Dublin, Ireland, ⁵St Vincents University Hospital, UCD, Dublin, Dublin, Ireland, ⁶Adelaide and Meath Hospital, Dublin, Dublin, Ireland, ⁷EULAR Centre for Arthritis and Rheumatic Diseases, St Vincents University Hospital, UCD, Dublin, Dublin, Ireland
Background/Purpose: Myeloid Dendritic Cells (DC) are potent antigen presenting cells that can be subdivided into CD141+ and CD1c+ DC. We have previously reported an unacknowledged…
Abstract Number: 0075 • ACR Convergence 2020
CD209+/CD14+ Dendritic Cells Characterization in Rheumatoid versus Psoriasis Arthritis Patients
Viviana Marzaioli¹, Achilleas Floudas², Mary Canavan¹, Siobhán Wade³, Kieran Murray⁴, Ronan Mullan⁵, Conor Hurson⁶, Douglas Veale⁷ and Ursula Fearon¹, ¹Molecular Rheumatology, Trinity College Dublin, Dublin, Dublin, Ireland, ²Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Dublin, Ireland, ³Trinity College Dublin, Dublin, Ireland, ⁴Saint Vincent's University Hospital, Dublin 4, Dublin, Ireland, ⁵Adelaide and Meath Hospital, Dublin, Dublin, Ireland, ⁶St Vincents University Hospital, UCD, Dublin, Dublin, Ireland, ⁷EULAR Centre for Arthritis and Rheumatic Diseases, St Vincents University Hospital, UCD, Dublin, Dublin, Ireland
Background/Purpose: Dendritic cells (DCs) are a heterogeneous population of professional antigen-presenting cells which are at the interface between innate and adaptive immunity. There are different…
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: 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: 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…
Abstract Number: 845 • 2018 ACR/ARHP Annual Meeting
New Insights in Lupus Dermatitis: Differential Regulation and Roles of Tissue-Resident Dendritic Cell Subsets in the Pathogenesis of Autoimmune Skin Inflammation
Ram R. Singh, Miguel-Angel Gutierrez, Peter Kim, Darshan Randhawa, Rachael Philips, Jennifer K. King and Anna Eriksson, Autoimmunity and Tolerance Laboratory, Department of Medicine/Rheumatology, UCLA, Los Angeles, CA
Background/Purpose: Acquired or self antigens in tissues are taken to lymphoid organs to elicit protective immunity or tolerance, respectively. This is accomplished by dendritic cells…
Abstract Number: 1018 • 2018 ACR/ARHP Annual Meeting
Tofacitinib Impairs Monocyte-Derived Dendritic Cell Differentiation in Rheumatoid Arthritis and Psoriatic Arthritis.
Viviana Marzaioli¹, Mary Canavan¹, Achilleas Floudas¹, Siobhan C. Wade¹, Candice Low², Douglas J. Veale² and Ursula Fearon¹, ¹Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ²Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin, Ireland
Background/Purpose: Tofacinitib (Pfizer) is an oral Janus kinase inhibitor, recently approved for the treatment of rheumatoid arthritis (RA) and psoriatic arthritis (PsA). Although its mechanism…
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…

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