Abstracts tagged "Dendritic cells"

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…
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: 2776 • 2017 ACR/ARHP Annual Meeting
Plasmacytoid Dendritic Cells in Systemic Fibrosis: Pathogenic Role in Bleomycin-Induced Fibrosis Model and Correlation with Disease in Patients with Systemic Sclerosis
Suzanne Kafaja¹, Isela Valera², Anagha Divekar³, Rajan Saggar⁴, Dinesh Khanna⁵, Daniel E. Furst⁶ and Ram R. Singh⁷, ¹Department of Internal Medicine, University of California Los Angeles, David Geffen School of Medicine, Division of Rheumatology, Los Angeles, CA, ²Autoimmunity and Tolerance Laboratory, Division of Rheumatology, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, ³Biolegend, Sa Diego, CA, ⁴Medicine, University of California, Los Angeles, David Geffen School of Medicine, Los Angeles, CA, ⁵University of Michigan, Ann Arbor, MI, ⁶David Geffen School of Medicine at UCLA, Los Angeles, CA, ⁷Autoimmunity and Tolerance Laboratory, Department of Medicine/Rheumatology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA
Background/Purpose: Fibrosis is the end-result of most inflammatory conditions, but its pathogenesis remains unclear. Studies in patients and animal models suggest a role for T-cells…
Abstract Number: 4 • 2017 ACR/ARHP Annual Meeting
Downregulation of microRNAs in Plasmacytoid Dendritic Cells Is Associated with a Type I Interferon Signature in Systemic Lupus Erythematosus and Antiphospholipid Syndrome
Lucas L. van den Hoogen¹, Joel A.G. van Roon^2,3, Ruth D.E. Fritsch-Stork⁴, Cornelis P.J. Bekker¹, Aridaman Pandit¹, Marzia Rossato⁵ and Timothy R.D.J. Radstake¹, ¹Rheumatology and Clinical Immunology, Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ²Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ³Laboratory for Translational immunology, University Medical Center Utrecht, Utrecht, Netherlands, ⁴Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ⁵Department of Rheumatology & Clinical Immunology, Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
Background/Purpose: The most prominent alteration in the immune system of patients with SLE is a type I interferon (IFN) signature, which we recently also reported…
Abstract Number: 861 • 2017 ACR/ARHP Annual Meeting
CD11b+Gr1dim tolerogenic Dendritic Cell-like Cells Suppress the Progression of Interstitial Lung Disease in SKG Mice
Sho Sendo¹, Jun Saegusa¹, Hirotaka Yamada², Yoshihide Ichise², Ikuko Naka³, Yo Ueda², Takaichi Okano², Soshi Takahashi⁴, Kengo Akashi⁵, Akira Onishi⁶ and Akio Morinobu⁴, ¹Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan, ²Department of Rheumatology and Clinical immunology, Kobe University Graduate School of Medicine, Kobe, Japan, ³Department of Clinical Pathology and Immunology, Kobe University Graduate School of Medicine, Kobe, Japan, ⁴Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan, ⁵Department of Rheumatology and Clinical Immnology, Kobe University Graduate School of Medicine, Kobe, Japan, ⁶Department for Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
CD11b+Gr1dim tolerogenic Dendritic Cell-like Cells Suppress the Progression of Interstitial Lung Disease in SKG Mice Background/Purpose: SKG mice develop interstitial lung disease (ILD) resembling rheumatoid arthritis-associated…
Abstract Number: 1064 • 2017 ACR/ARHP Annual Meeting
Characterization of Human Tolerogenic Dendritic Cells Generated with Protein Kinase C Inhibitor and Induction from Patients with Autoimmune Diseases
Hitoshi Hasegawa¹, Takuya Matsumoto¹, Endy Adnan², Jun Ishizaki¹, Koichiro Suemori¹ and Masaki Yasukawa¹, ¹Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Ehime, Japan, ²Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Ehime, Japan
Background/Purpose: Tolerogenic dendritic cells (tDCs) are a promising therapeutic tool for specific induction of immunological tolerance. Human tDCs can be generated ex vivo using various…
Abstract Number: 1338 • 2017 ACR/ARHP Annual Meeting
Important Role of CD11c+ Dendtritic Cells in Inflammatory Arthritis
Antonia Puchner¹, Victoria Saferding¹, Michael Bonelli², Harald Leiss³, Gerhard Krönke⁴, René Pfeifle⁵, Josef S. Smolen⁶, Kurt Redlich⁷ and Stephan Blüml⁶, ¹Medical University of Vienna, Austria, Vienna, Austria, ²Rheumatology, Medical University of Vienna, Vienna, Austria, ³Rheumatology, Medical University Vienna, Vienna, Austria, ⁴Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3 – Rheumatology and Immunology, Universitätsklinikum Erlangen, Erlangen, Germany., Erlangen, Austria, ⁵Department of Internal Medicine 3 and Institute for Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany, ⁶Medical University Vienna, Division of Rheumatology, Department of Internal Medicine III, Vienna, Austria, ⁷Division of Rheumatology, Medical University of Vienna, Vienna, Austria
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: 1579 • 2017 ACR/ARHP Annual Meeting
Monocyte-Derived Dendritic Cells (MDDCs) from Spondyloarthritis (SpA) Patients Exhbit a Coordinated Downregulation of the Cholesterol (chol) Biosynthesis Pathway That Relates to Lipid Overload
Maxime Breban¹, Clémence Desjardin², Emmanuel Chaplais³, Alice Talpin³, Felicie Costantino⁴, Christophe Hue³, Aude Jobart-Malfait⁵, Benoit Maury⁶, Stanislas Grassin-Delyle³, Nelly Bonilla⁷, Ariane Leboime⁸, Roula Said Nahal⁹, Franck Letourneur⁷, Sébastien Jacques⁷, Anne Boland¹⁰, Jean-François Deleuze¹⁰, Gilles Chiocchia¹¹ and Henri-Jean Garchon^3,6,12, ¹Rheumatology, Ambroise Paré Hospital (AP-HP), Versailles Saint Quentin en Yvelines University, INSERM UMR1173, Boulogne-Billancourt, France, ²INSERM UMR1173, Montigny-le-Bretonneux, France, ³Inserm U1173, Montigny-le-Bretonneux, France, ⁴Hôpital Universitaire Ambroise Pare, Paris, France, ⁵INSERM-U1173, University of Versailles Saint-Quentin-en-Yvelines, France, Montigny-le-Bretonneux, France, ⁶University of Versailles Saint-Quentin, Simone Veil school of Health Sciences, Montigny-le-Bretonneux, France, ⁷Institut Cochin, Inserm U1016, Paris, France, ⁸Ambroise Paré Hospital Division of Rheumatology, Assistance Publique des Hopitaux de Paris, Boulogne-Billancourt, France, ⁹Ambroise Paré Hospital, Boulogne-Billancourt, France, ¹⁰Centre National de Recherche en Génomique Humaine, Evry, France, ¹¹Service d'Immunologie, Ambroise Paré Hospital, University of Versailles Saint-Quentin-en-Yvelines, Boulogne, France, Boulogne-Billancourt, France, ¹²Ambroise Paré Hospital Division of Genetics, AP-HP, Boulogne-Billancourt, France
Background/Purpose: Gene expression studies are useful to investigate the pathogenesis of complex diseases. The critical role of antigen-presenting cells such as dendritic cells (DCs) being…
Abstract Number: 1656 • 2017 ACR/ARHP Annual Meeting
Type I Interferon Drives the Dysregulation of Plasmacytoid and Myeloid Dendritic Cells in Systemic Lupus Erythematosus and Antiphospholipid Syndrome
Lucas L. van den Hoogen¹, Aridaman Pandit¹, Giovanni Palla², Marzia Rossato³, Ruth D.E. Fritsch-Stork⁴, Joel A.G. van Roon⁵ and Timothy R.D.J. Radstake¹, ¹Rheumatology and Clinical Immunology, Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ²Rheumatology and Clinical Immunology, Laboratory of Translational Medicine, University Medical Center Utrecht, Utrecht, Netherlands, ³Department of Rheumatology & Clinical Immunology, Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ⁴Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ⁵Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands
Background/Purpose: Dendritic cells (DC) are the sentinel cells of the immune system that potently activate T-cells, making them important players in the pathophysiology of systemic…

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