Abstracts tagged "interferon"

Abstract Number: 0951 • ACR Convergence 2024
A Feedback Loop Involving mtDNA, Platelets and Neutrophil Extracellular Traps Amplifies Inflammation in Systemic Sclerosis
Stavros Giaglis¹, Diego Kyburz² and Ulrich Walker³, ¹Experimental Rheumatology Laboratory, University of Basel, Basel, Switzerland, ²University Hospital Basel, Basel, Switzerland, ³Basel University Hospital, Basel, Switzerland
Background/Purpose: Mitochondria are essential eucaryotic cell organelles with several bacterial features, such as a double-stranded circular genome with hypomethylated CpG areas (1). A fundamental role of…
Abstract Number: 1766 • ACR Convergence 2024
STAT2-Associated Type I Interferonopathy: A Masquerade of Infectious Susceptibility
Conor Gruber¹, Angelica Lee², Sofija Buta², Marta Martin Fernandez², Veronique Houdouin³, Jean-Laurent Casanova⁴, Alice Hadchouel⁵, Jacinta Bustamante⁵ and Dusan Bogunovic², ¹Mount Sinai Hospital, New York, NY, ²Columbia University, New York, NY, ³Robert Debré Hospital, Paris, France, ⁴Rockefeller University, New York, NY, ⁵Hôpital Necker-Enfants Malades, Paris, France
Background/Purpose: Type I IFN (IFN-I) signaling is a potent inflammatory pathway fundamental to antiviral immunity. In humans, loss of IFN-I activity underlies severe viral disease,…
Abstract Number: 2385 • ACR Convergence 2024
Increased Type I Interferon Inducible Genes Expression in the Peripheral Blood of Patients Presenting Cutaneous Lupus Erythematosus Manifestations
Anastasia- Bilio Chronopoulou¹, Maria Gerochristou², Sylvia Raftopoulou³, Alexander Stratigos⁴ and Clio Mavragani⁵, ¹National and Kapodistrian University of Athens, Athens, Greece, ²Andreas Syggros Hospital, National and Kapodistrian University of Athens, Athens, Greece, ³Molecular and Applied Physiology Unit, Department of Physiology, School of Medicine, National and Kapodistrian University of Athens., Athens, Greece, ⁴1st Department of Dermatology-Venereology, Faculty of Medicine, Andreas Sygros Hospital, National and Kapodistrian University of Athens, Athens, Greece, ⁵Department of Physiology and Pathophysiology, School of Medicine, National and Kapodistrian University of Athens., Athens, Greece
Background/Purpose: Cutaneous Lupus Erythematosus (CLE) is a chronic autoimmune skin disease characterized by a spectrum of cutaneous manifestations resulting from immune dysregulation and inflammation. While…
Abstract Number: 0608 • ACR Convergence 2023
Efficacy of Cenerimod in Patients with High IFN-1 Gene Expression Signature and High Anti-dsDNA Antibody Levels: Post-hoc Analysis from a Phase 2 Study
Anca Askanase¹, David D'Cruz², Kenneth Kalunian³, Joan Merrill⁴, Sandra Navarra⁵, Clélia Cahuzac⁶, Peter Cornelisse⁶, Daniel Strasser⁶, Luba Trokan⁷ and Ouali Berkani⁸, ¹Columbia University Medical Center, New York, NY, ²Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom, ³University of California San Diego, La Jolla, CA, ⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁵University of Santo Tomas Hospital, Joint and Bone Center, Manila, Philippines, ⁶Idorsia Pharmaceuticals Ltd., Allschwil, Switzerland, ⁷Idorsia Pharmaceuticals Ltd. at time of data generation, Allschwil, Switzerland, ⁸IDORSIA, Allschwil, Switzerland
Background/Purpose: Cenerimod is an orally active, selective sphingosine 1-phosphate (S1P) 1 receptor modulator under investigation for the treatment of systemic lupus erythematosus (SLE). In the…
Abstract Number: 1271 • ACR Convergence 2023
Upregulation of IFNγ-Response Genes in Monocytes and T Cells Identified by Single-Cell Transcriptomics in Patients with Anti-CCP Antibody-Positive Rheumatoid Arthritis (RA)
Bong-Ki Hong¹, Sungyong You², Naeun Lee¹, Jung Gon Kim³, Kijun Lee⁴, Ji Hyeon Ju⁵, Wan-Uk Kim¹ and Ho-Youn Kim⁶, ¹The Catholic University of Korea, Seoul, South Korea, ²Cedars-Sinai Medical Center, Los Angeles, CA, ³Inje University Ilsan Paik Hospital, Goyang, South Korea, ⁴YiPSCELL, Secho, South Korea, ⁵Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea, ⁶HoYoun Kim's Clinic for Arthritis Rheumatism, Seoul, South Korea
Background/Purpose: Recent research has revealed a significant upregulation of IFNγ-related genes in RA patients, though the underlying mechanisms and implications are still unclear. To further…
Abstract Number: 2448 • ACR Convergence 2023
UV Light Exposure Induces a Type I Interferon Dependent Activation and Migration of Inflammatory Dendritic Cells to Local Lymph Nodes
Xizhang Sun, Jaime Chao, Michael Gerner and Keith Elkon, University of Washington, Seattle, WA
Background/Purpose: Photosensitivity occurs in ~ 75% of lupus patients. Although ultraviolet (UV) light stimulates Type I interferon (IFN-I) in the skin, why lupus patients are…
Abstract Number: 0724 • ACR Convergence 2023
Synovial Macrophage Subsets Defined by ScRNAseq Demonstrate Sexually Dimorphic Gene Expression in RA and a Mouse Inflammatory Arthritis Model
Richard Bell, Ewurama Cann, Chao Yang, Accelerating Medicine Partnership Rheumatoid Arthritis, Amit Lakhanpal, Laura Donlin and Lionel Ivashkiv, Hospital for Special Surgery, New York, NY
Background/Purpose: Macrophages (MФ) play a key pathogenic role in Rheumatoid Arthritis (RA), a disease that exhibits female sex bias. Recent work using scRNAseq has defined…
Abstract Number: 1508 • ACR Convergence 2023
Predicting in Virtual Patients the Efficacy of an Anti IFNa Mab in Cutaneous Lupus Erythematosus
Vincent Hurez¹, Krishnakant Dasika Dasika¹, Perrine Soret², Renee Myers³, Katherine Kudrycki¹, Robert Sheehan¹, Christina Friedrich1¹, Sandra Hubert², Mike Reed¹, Emiko Desvaux², Audrey Aussy², Laurence Laigle², Loubna Chadli², Florian Chassereau², Sylvain Fouliard², Glenn Gauderat² and Philippe Moingeon², ¹Rosa and Co, San Carlos, CA, ²Les Laboratoires Servier SAS, Suresnes, France, ³Les Laboratoires Servier SAS, San Carlos, France
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a heterogeneous autoimmune disease that requires more specific treatments to target patient subsets. To support precision medicine approaches, we…
Abstract Number: 2576 • ACR Convergence 2023
Rapid Onset of Response in Adult Dermatomyositis Patients Receiving Anti-interferon β (PF-06823859): Results of a Phase 2, Double-blind, Randomized, Placebo-Controlled Study
Rohit Aggarwal¹, Elena Peeva², Aaron Mangold³, Abigail Sloan² and Myron Chu², ¹University of Pittsburgh, Pittsburgh, PA, ²Pfizer, Cambridge, MA, ³Mayo Clinic, Scottsdale, AZ
Background/Purpose: Interferon (IFN) dysregulation is a key feature in the pathogenesis of Dermatomyositis (DM). PF-06823859 is a potent, selective, humanized IgG1 neutralizing antibody directed against…
Abstract Number: 0728 • ACR Convergence 2023
Systemic Lupus Erythematosus B Lymphocyte Responsiveness to Type I and Type III Interferon Is Determined by Donor IFN Status and B Cell Phenotype
Diana Alzamareh, Mary O'Connell, Jennifer Anolik and Jennifer Barnas, University of Rochester Medical Center, Rochester, NY
Background/Purpose: Systemic lupus erythematous (SLE) is a heterogenous autoimmune disorder characterized by pathogenic antinuclear antibodies. An interferon (IFN) gene signature and B cell aberrations are…
Abstract Number: 1580 • ACR Convergence 2023
CXCL13+ T Cell Differentiation in Systemic Lupus Erythematosus Is Controlled by Opposing Effects of Aryl Hydrocarbon Receptor and Type I Interferon
Calvin Law¹, Vanessa Wacleche², Ye Cao³, Arundhati Pillai¹, Alice Horisberger⁴, Sabrina Bracero³, Viktoriya Skidanova³, Zhihan Li³, Ifeoluwakiisi Adejoorin², Isaac Benque³, Diana Pena Nunez³, Daimon Simmons², Joshua Keegan⁴, Lin Chen³, John Sowerby³, Accelerating Medicines Partnership (AMP): RA/SLE², Elena Massarotti², Karen Costenbader⁴, Michael Brenner⁴, James Lederer⁴, Judd Hultquist¹, Jaehyuk Choi¹ and Deepak Rao², ¹Northwestern University Feinberg School of Medicine, Chicago, IL, ²Brigham and Women's Hospital, Boston, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Brigham and Women's Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Expansion of B cell-helper T cells including T follicular helper (Tfh) and T peripheral helper (Tph) cells is a prominent feature of systemic lupus…
Abstract Number: 0733 • ACR Convergence 2023
Global Identification of Lupus Genetic Risk Variants Facilitating the Type I Interferon Pathway Through CRISPR-based Genomic Screening
Guojun Hou¹, Xinyi Zhu¹, Yutong Zhang¹, Zhaorui Cheng¹ and Nan Shen², ¹Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University (SJTUSM), Shanghai, China, ²Shanghai Jiao Tong University School of Medicine, Shanghai, China
Background/Purpose: Genome-Wide Association Studies (GWAS) have unveiled over 1000 risk variants for lupus, predominantly situated in non-coding genomic regions. Their functional roles, especially their potential…
Abstract Number: 1586 • ACR Convergence 2023
Keratinocyte VISTA Suppresses Skin IFN-I Production by Regulating DNA Damage Repair and Cytosolic DNA Sensing
Zachary Peters¹, Lindsay Mendyka², Sicong Shan¹, William Rigby³, Christopher Burns⁴, Randolph Noelle⁵ and Sladjana Skopelja-Gardner⁴, ¹Dartmouth College, Hanover, NH, ²Dartmouth Hitchcock, Lebanon, NH, ³Dartmouth-Hitchcock, Norwich, VT, ⁴Dartmouth Hitchcock Medical Center, Lebanon, NH, ⁵Geisel School of Medicine at Dartmouth, Hanover, NH
Background/Purpose: Persistent production of type I interferons (IFN-Is) is one of the hallmarks of lupus skin disease that is exacerbated by ultraviolet (UV) light. We…
Abstract Number: 0762 • ACR Convergence 2023
Liver Disease Is a Common Feature of HA20 That Causes Significant Morbidity Associated with Interferon Induction
Magdalena Harasimowicz¹, Deborah Stone², Manuel Carpio Tumba¹, Tina Romeo², Urekha Karri¹, Patrycja Hoffmann³, Helen Leavis⁴, Alexander Miethke⁵, Theo Heller², Anjali Rai², Ivona Aksentijevich², amanda ombrello⁶, Daniel Kastner⁷ and Daniella Schwartz¹, ¹University of Pittsburgh, Pittsburgh, PA, ²NIH, Bethesda, MD, ³NIH, Vienna, VA, ⁴Infection Immunity Utrecht, Utrecht, Netherlands, ⁵Cincinnati Children's Hospital, Cincinnati, OH, ⁶National Institutes of Health, Rockville, MD, ⁷National Human Genome Research Institute, Bethesda, MD
Background/Purpose: Heterozygous loss-of-function TNFAIP3 mutations cause A20 haploinsufficiency (HA20), an early-onset immune dysregulatory disease1. While HA20 was initially described as an inherited form of Behcet’s…
Abstract Number: 1587 • ACR Convergence 2023
Mitochondrial Z-DNA and ZBP1 Drive Autoimmune Photosensitivity
Benjamin Klein, Mack Reynolds, Bin Xu, Mehrnaz Gharaee-Kermani, Amanda Victory, Shannon Loftus, Mary O'Riordan and J. Michelle Kahlenberg, University of Michigan, Ann Arbor, MI
Background/Purpose: Autoimmune photosensitivity is observed in type I Interferon (IFN) mediated diseases such as systemic and cutaneous lupus erythematosus (SLE/CLE) and dermatomyositis. Type I IFN…

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