Abstracts tagged "interferons"

Abstract Number: L06 • 2019 ACR/ARP Annual Meeting
Interferon-gamma (IFN-γ) Neutralization with Emapalumab and Time to Response in Patients with Macrophage Activation Syndrome (MAS) Complicating Systemic Juvenile Idiopathic Arthritis (s-JIA) who failed High-Dose Glucocorticoids
Fabrizio De Benedetti¹, Paul Brogan ², Alexei A. Grom ³, Pierre Quartier ⁴, Rayfel Schneider ⁵, Jordi Antón ⁶, Claudia Bracaglia ⁷, Manuela Pardeo ⁸, Giulia Marucci ⁸, Emanuela Sacco ⁹, Despina Eleftheriou ¹⁰, Charalampia Papadopoulou ¹¹, Philippe Jacqmin ¹², maria ballabio ¹³ and Cristina de Min ¹³, ¹Bambino Gesù Children's Hospital, Rome, Italy, ²Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom, ³Division of Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁴Necker Hospital, Paris, France, ⁵Hospital for Sick Children, Toronto, ON, Canada, ⁶Hospital Sant Joan de Déu, Barcelona, Spain, ⁷Division of Rheumatology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy, ⁸Division of Rheumatology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy, Rome, Italy, ⁹Division of Rheumatology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy, Rome, ¹⁰UCL Institute of Child Health, and Great Ormond Street Hospital NHS Foundation Trust, Infection, Immunology, and Rheumatology section,, london, United Kingdom, ¹¹UCL Institute of Child Health, and Great Ormond Street Hospital NHS Foundation Trust, Infection, Immunology, and Rheumatology section, london, United Kingdom, ¹²MnS, Dinant, Belgium, ¹³Sobi AG, basel, Switzerland
Background/Purpose: MAS is a severe complication of rheumatic diseases, most frequently sJIA and adult-onset Still’s disease. It is characterized by fever, hepatosplenomegaly, liver dysfunction, cytopenias,…
Abstract Number: 958 • 2019 ACR/ARP Annual Meeting
Identification of IFN-γ-producing Effector B Cells in Humans: Their Relevance to the Pathogenesis of Systemic Lupus Erythematosus
Kazuhiko Higashioka¹, Masahiro Ayano ², Yasutaka Kimoto ³, Hiroki Mitoma ², Mitsuteru Akahoshi ², Yojiro Arinobu ², Koichi Akashi ¹, Takahiko Horiuchi ⁴ and Hiroaki Niiro ⁵, ¹Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, ²Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Fukuoka, Japan, Fukuoka, Japan, ³Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan, ⁴Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan, Beppu, Japan, ⁵Clinical Education Centre, Kyushu University Hospital, Fukuoka, Japan, Fukuoka, Japan
Background/Purpose: Systemic lupus erythematosus (SLE) is an autoimmune, multi-systemic disease that potentially affects any organ in the body. Clinical efficacy of B cell-targeting therapy underscores…
Abstract Number: 2900 • 2019 ACR/ARP Annual Meeting
Interferon Signature Predicts Response to Tofacitinib in Haploinsufficiency of A20
Sarah Blackstone¹, Daniella Schwartz ¹, Natalia Sampaio Moura ¹, Deborah Stone ¹, Meryl Waldman ¹, Patrycja Hoffmann ¹, Anne Jones ¹, Tina Romeo ¹, Karyl Barron ¹, Joshua Milner ¹, Daniel Kastner ¹ and Amanda Ombrello ¹, ¹National Institutes of Health, Bethesda, MD
Background/Purpose: The protein A20, encoded by TNFAIP3, represses signaling upstream of the inflammatory transcription factor nuclear factor (NF)-kB by regulating ubiquitination. Heterozygous loss-of-function mutations in…
Abstract Number: 1026 • 2019 ACR/ARP Annual Meeting
Interferon Lambda Promotes Age-Associated B Cells
Jennifer Barnas¹, Nida Meednu ¹, Andrew McDavid ¹, Jennifer Albrecht ¹, Christopher Richardson ¹, R. John Looney ² and Jennifer Anolik ¹, ¹University of Rochester Medical Center, Rochester, NY, ²University of Rochester Medical Center, Rochester
Background/Purpose: Age-associated B cells (ABC), defined as CD11c+ T-bet+ or CD11c+CD21-, represent a subset of B lymphocytes that are increased in systemic lupus erythematosus (SLE)…
Abstract Number: 2909 • 2019 ACR/ARP Annual Meeting
Efficacy and Safety of the Selective Interleukin-1 Receptor Associated Kinase 4 Inhibitor, PF-06650833, in Patients with Active Rheumatoid Arthritis and Inadequate Response to Methotrexate
Spencer I Danto¹, Negin Shojaee ¹, Ravi Shankar P Singh ¹, Zorayr Manukyan ², Jessica Mancuso ¹, Elena Peeva ¹, Michael Vincent ¹ and Jean Beebe ¹, ¹Pfizer Worldwide Research & Development, Immunology, and Inflammation Research Unit, Cambridge, MA, ²Pfizer Worldwide Research & Development, Immunology, and Inflammation Research Unit, ..
Background/Purpose: Adaptive and innate immune pathways are involved in inflammation and pathogenesis of rheumatoid arthritis (RA). Toll-like receptor (TLR) stimulation activates the innate immune system,…
Abstract Number: 1296 • 2019 ACR/ARP Annual Meeting
Increased MxA Protein Expression and Dendritic Cells in Spongiotic Dermatitis Differentiates Dermatomyositis from Eczema
Majid Zeidi¹, Kristen Chen ¹, Basil Patel ², Rachel Lim ³ and Victoria Werth ¹, ¹Corporal Michael J. Crescenz VAMC, Philadelphia, PA, USA and Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA, Philadelphia, PA, ²Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA, Philadelphia, PA, ³Corporal Michael J. Crescenz VAMC, Philadelphia, PA, USA, Philadelphia
Background/Purpose: Dermatomyositis (DM) is conventionally characterized by interface dermatitis (ID) on skin histopathology. A subset of patients with clinically diagnosed DM have skin biopsies showing…
Abstract Number: 1455 • 2019 ACR/ARP Annual Meeting
B and T Cell Immunologic Features Associated with Higher Disease Activity Score and Focus Score in Primary Sjögren Syndrome
Alice Mai¹, Yuriy Baglaenko ², Dario Ferri ³, Kieran Manion ⁴, Dennisse Bonilla ⁵, Arthur Bookman ⁶ and Joan Wither ⁷, ¹University of British Columbia Department of Rheumatology, Vancouver, Canada, ²Brigham Woman's Hospital, Boston, ³University Health Network, Toronto, ON, Canada, ⁴Krembil Research Institute, Toronto, ON, Canada, ⁵University Health Network, University of Toronto, Toronto, ON, Canada, ⁶University Health Network, Toronto, Canada, ⁷University Health Network, Krembil Research Institute, Toronto, ON, Canada
Background/Purpose: Primary Sjögren syndrome (pSS) is a systemic autoimmune disease with an incompletely understood pathogenesis and heterogenous disease manifestations. Identifying cellular immune changes that may…
Abstract Number: 1762 • 2019 ACR/ARP Annual Meeting
UV Light Induces Acute Type I Interferon Production in the Skin and Blood Which Is cGAS Dependent
Sladjana Skopelja-Gardner¹, Jie An ², Xizhang Sun ², Lena Tanaka ², Joyce Tai ², Payton Hermanson ², Masaoki Kawasumi ² and Keith Elkon ², ¹University of Washington, Seattle, WA, ²University of Washington, Seattle
Background/Purpose: Interferon response genes (ISG) are strongly expressed in the skin of many patients with systemic lupus erythematosus (SLE). Since plasmacytoid dendritic cells (pDC) are…
Abstract Number: 1866 • 2019 ACR/ARP Annual Meeting
Gene Expression Meta-Analysis Reveals Commonalities in Gene Activation and Enrichment of Immune Pathways and Cell Types in Dermatomyositis Target Tissues
Jessica Neely¹, Dmitry Rychkov ¹, Manish Paranjpe ¹, Michael Waterfield ², Susan Kim ¹ and Marina Sirota ², ¹University of California, San Francisco, San Francisco, CA, ²University of California, San Francisco, San Francisco
Background/Purpose: Dermatomyositis (DM) is a complex immune-mediated disease resulting in muscle and skin inflammation. Prior studies of gene expression in DM have revealed a type…
Abstract Number: 1869 • 2019 ACR/ARP Annual Meeting
Myeloid Dendritic Cells (mDCs) Are Major Producers of Interferon-β in Dermatomyositis and Higher Numbers of mDCs Are Found in Hydroxychloroquine Nonresponders
Kristen Chen¹, Majid Zeidi ¹, Maria Wysocka ², Nithin Reddy ¹, Arvin Jadoo ¹, Muhammad Bashir ¹, Sarah Ahmed ², Basil Patel ², Kevin Zhang ², Barbara White ³ and Victoria Werth ¹, ¹Corporal Michael J. Crescenz VAMC, Philadelphia, PA, USA and Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA, Philadelphia, PA, ²Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA, Philadelphia, PA, ³Corbus Pharmaceuticals, Norwood, MA
Background/Purpose: Dermatomyositis (DM) is an autoimmune disease affecting the skin, skeletal muscle, lungs, and/or other organs. While the pathogenesis remains poorly understood, it is thought…
Abstract Number: 1914 • 2019 ACR/ARP Annual Meeting
Increased Risk of Progression to Lupus Nephritis for Lupus Patients with Elevated Interferon Signature
Cristina Arriens¹, Quratul Raja ², Syed Ali Husain ², Bessy George ², Majid Abedi ³, Aviva Jacobs ⁴, Timothy Guyon ⁴, Hemani Wijesuriya ³, Teresa Aberle ⁵, Aikaterini Thanou ⁵, Stan Kamp ⁵, Susan R. Macwana ⁵, Eliza F. Chakravarty ¹, Joan T. Merrill ⁶, Judith James ¹, Robert Terbrueggen ⁴ and Joel Guthridge ¹, ¹Oklahoma Medical Research Foundation, University of Oklahoma Health Sciences Center, Oklahoma City, OK, ²University of Oklahoma Health Sciences Center, Oklahoma City, OK, ³DxTerity Diagnostics Inc, Anaheim, CA, ⁴DxTerity Diagnostics Inc, Rancho Dominguez, CA, ⁵Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁶Okalahoma Medical Research Foundation, Oklahoma City, OK
Background/Purpose: The interferon (IFN) signature in SLE is well established, distinguishing lupus patients from healthy controls. Additionally, within lupus patients, higher levels of IFN-responsive gene…
Abstract Number: 2026 • 2019 ACR/ARP Annual Meeting
MicroRNA-27a Can Contribute to Interferon Signatures in Systemic Lupus Erythematosus via the Suppression of Tripartite Motif-containing Protein 27
Daiga Kishimoto¹, Ryusuke Yoshimi ¹, Yosuke Kunishita ¹, Yumiko Sugiyama ², Takaaki Komiya ¹, Natsuki Sakurai ³, Reikou Kamiyama ¹, Yohei Kirino ⁴ and Hideaki Nakajima ⁴, ¹Department of Stem Cell and Immune Regulation / Yokohama City University Graduate School of Medicine, Yokohama, Japan, ²Department of Rheumatic Diseases / Yokohama City University Medical Center, Yokohama, Japan, ³Department of Stem Cell and Immune Regulation / Yokohama City University Graduate School of Medicine, Yokohama City, Japan, ⁴Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
Background/Purpose: Type Ⅰ interferons (IFN) contribute to antiviral innate immune responses. Upon viral infection, pattern recognition receptors trigger TANK-binding kinase 1 (TBK1) activation and lead…
Abstract Number: 2032 • 2019 ACR/ARP Annual Meeting
Enhanced IFN a Production and STING Pathway in Monocytes in Systemic Lupus Erythematosus Is Suppressed by the Inhibition of mTOR Activation
Goh Murayama¹, Asako Chiba ², Ayako Makiyama ³, Taiga Kuga ⁴, Ken Yamaji ⁴, Naoto Tamura ⁴ and Sachiko Miyake ², ¹Department of Internal Medicine and Rhumatology, Juntendo University School of Medicine, Tokyo, Japan, ²Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan, ³Juntendo University School of Medicine, Tokyo, Japan, ⁴Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
Background/Purpose: Interferona (IFNa) is increased and plays an important role in the pathogenesis of systemic lupus erythematosus (SLE). Overexpression of type I IFN regulated genes…
Abstract Number: 2033 • 2019 ACR/ARP Annual Meeting
IRAK4 Inhibition Suppresses TLR7, TLR9, and SLE Serum-Induced IFNA Production in Primary Human Plasmacytoid Dendritic Cells
Angie Hammond¹, Sean Parghi ¹, Nathan Wright ¹, Ethan Grant ¹, James Taylor ¹ and Matthew Warr ¹, ¹Gilead Sciences, Inc., Foster City, CA
Background/Purpose: A hallmark of lupus is the presence of antinuclear autoantibodies, including those against RNA-protein complexes and double-stranded DNA (dsDNA).1,2 FcγR-mediated internalization of these nucleic…
Abstract Number: 2563 • 2019 ACR/ARP Annual Meeting
PK/PD, Safety and Exploratory Efficacy of Subcutaneous Anifrolumab in SLE: A Phase-II Study in Interferon Type I High Patients with Active Skin Disease
Ian Bruce¹, Alireza Nami ², Erik Schwetje ³, M Edward Pierson ⁴, Yen Lin Chia ⁵, Denison Kuruvilla ⁵, Gabriel Abreu ⁶, Raj Tummala ³ and Catharina Lindholm ⁶, ¹University of Manchester, Manchester, United Kingdom, Manchester, England, United Kingdom, ²Joint & Muscle Medical Care, Charlotte, NC, US, Charlotte, NC, ³AstraZeneca, Gaithersburg, MD, USA, Gaithersburg, MD, ⁴AstraZeneca, Gaithersburg, MD, US, Gaithersburg, MD, ⁵AstraZeneca, South San Francisco, CA, US, South San Francisco, CA, ⁶AstraZeneca, Gothenburg, Sweden, Gothenburg, Sweden
Background/Purpose: Anifrolumab, a fully human anti–IFN Type I receptor mAb, is under investigation for the treatment of SLE at a dose of 300 mg intravenously…

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