Abstracts tagged "Dendritic cells"

Abstract Number: 0513 • ACR Convergence 2021
Spirulina Activates IFNγ via TLR4 in Dermatomyositis Skin and Peripheral Blood
DeAnna Diaz¹, Thomas Vazquez², Christina Bax³, Jay Patel⁴, Madison Grinnell⁵, Emily Keyes⁶, Yubin Li⁵ and Victoria Werth⁷, ¹Philadelphia College of Medicine, Philadelphia, PA, ²FIU Wertheim College of Medicine, Virginia Beach, VA, ³Corporal Michael J. Crescenz VAMC/ Department of Dermatology, U Penn, Philadelphia, PA, ⁴Corporal Michael J. Crescenz VAMC, Department of Dermatology, U Penn, Philadelphia, NJ, ⁵Corporal Michael J. Crescenz VAMC, Department of Dermatology, U Penn, Philadelphia, PA, ⁶Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania and Philadelphia VAMC, Philadelphia, PA, ⁷University of Pennsylvania, Philadelphia, PA
Background/Purpose: Our group has previously shown that Spirulina, a popular herbal supplement with purported immune boosting effects, is temporally associated with dermatomyositis (DM) onset and…
Abstract Number: L10 • ACR Convergence 2020
Targeting Plasmacytoid Dendritic Cells Improves Cutaneous Lupus Erythematosus Skin Lesions and Reduces Type I Interferon Levels: Results of a Phase 1 Study of VIB7734
Victoria Werth¹, Jodi Karnell², William Rees², Nanette Mittereder³, Li Yan², Yanping Wu³, Jorn Drappa², Gabor Illei² and John Ratchford², ¹University of Pennsylvania, Philadelphia, PA, ²Viela Bio, Gaithersburg, MD, ³Viela Bio, Gaithersburg
Background/Purpose: Plasmacytoid dendritic cells (pDCs) secrete large amounts of type I interferon (IFN) and other cytokines upon activation. pDCs migrate to sites of active disease…
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: 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: 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: 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…

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