Abstracts tagged "Gene Expression"

Abstract Number: 0830 • ACR Convergence 2023
The Upregulation of MAP Kinase Pathway Genes Is Associated with Poor Treatment Response to Tofacitinib in Polyarticular Course Juvenile Idiopathic Arthritis
Esraa Eloseily¹, Alex Pickering², Sanjeev Dhakal¹, Hermine Brunner³, Sherry Thornton⁴ and Alexei Grom¹, ¹Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ²Harvard Medical School Department of Biomedical Informatics, Boston, MA, ³Cincinnati Children's Hospital Medical Center, Division of Rheumatology, Cincinnati, OH, ⁴Cincinnati Children's Hospital, Cincinnati, OH
Background/Purpose: Despite significant progress in understanding the pathophysiology of Juvenile Idiopathic Arthritis (JIA), the availability of tools to accurately predict treatment response remains limited. Our…
Abstract Number: 2180 • ACR Convergence 2023
Salivary and Plasma Mitochondrial Double-strand RNAs as a Diagnostic Biomarker for Sjӧgren Syndrome
SE RIM CHOI¹, Jee-in Lee², Yong Seok Choi³, You-Jung Ha³, Eun Ha Kang³ and Yun Jong Lee⁴, ¹Seoul National University Bundang Hospital, Seoul, South Korea, ²Seoul National University of Bundang Hospital, Seongnam, South Korea, ³Seoul National University Bundang Hospital, Seongnam, South Korea, ⁴Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam-si, South Korea
Background/Purpose: Since mitochondrial double-stranded RNAs (mt-dsRNAs), an endogenous activator of interferon signaling, are elevated in primary Sjӧgren's syndrome (pSS), we evaluated their association with the…
Abstract Number: 0882 • ACR Convergence 2023
Activation of Ovarian Cancer G-Protein Coupled Receptor (OGR1) Attenuates Chondrocytes Inflammation via ERK1/2 Signaling Pathways in an in Vitro Model of Osteoarthritis
Omar Syed, Bhakti Patel, William Martin, Martha Diaz-Hernandez, Hicham Drissi and Mohd Nazir Khan, Emory University, Atlanta, GA
Background/Purpose: Osteoarthritis (OA) is the most prevalent joint disease, accounting for 50% of the musculoskeletal burden. Inflammation plays a crucial role in the development of…
Abstract Number: 2235 • ACR Convergence 2023
Identifying Differentially Expressed Genes to Predict TNF-Alpha and IL-17A Inhibitor Response in Psoriatic Arthritis
Quan Li¹, Darren O'Rielly¹, Kari Jenkins¹, Dianne Codner¹, Dafna Gladman², Amanda Dohey¹, Igor Jurisica³, Vinod Chandran⁴ and Proton Rahman⁵, ¹Memorial University, St. John's, NL, Canada, ²Schroeder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Department of Medicine, University of Toronto, Toronto, ON, Canada, ³Schroeder Arthritis Institute, Krembil Research Institute and Departments of Medical Biophysics and Computer Science and Faculty of Dentistry, University of Toronto and Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia, ⁴Schroeder Arthritis Institute, Krembil Research Institute, University Health Network and Division of Rheumatology, Department of Medicine, University of Toronto, Toronto, ON, Canada, ⁵Craig Dobbin Research Institute, Memorial University, St. John's, NL, Canada
Background/Purpose: Approximately 30 to 40% of patients are primary non-responders, and the response rate declines after each successive biological therapy. The primary aim is to…
Abstract Number: 0899 • ACR Convergence 2023
Complement Factor I (CFI) Gene Expression by Kidney Tubular Cells Is Increased in Lupus Nephritis Patients with Interstitial Fibrosis and Tubular Atrophy
Shudan Wang¹, John Greally², Masako Suzuki³, Jee-Young Moon², Tao Wang², Yvonne M Saenger², Brad Rovin⁴ and J. Michelle Kahlenberg⁵, ¹Albert Einstein College of Medicine / Montefiore Medical Center, New York, NY, ²Albert Einstein College of Medicine, Bronx, NY, ³Texas A&M University, College Station, TX, ⁴Ohio State University, Columbus, OH, ⁵University of Michigan, Ann Arbor, MI
Background/Purpose: Tubulointerstitial injury is a strong predictor of progression to kidney failure in lupus nephritis (LN). Prior animal studies suggest intrarenal complement activation has an…
Abstract Number: 2333 • ACR Convergence 2023
Dapirolizumab Pegol Impacts Important Immunologic Pathways in SLE: Pharmacodynamic Analysis of B Cell and Type I Interferon Pathways from a Phase 2b Trial
Ioana Cutcutache¹, Alex Powlesland¹, Andrew Skelton¹, Yunyun Sun¹, Matthew Page¹, George Stojan², Peter Lipsky³, Ania Skowera¹ and Christian Stach⁴, ¹UCB Pharma, Slough, United Kingdom, ²UCB, Baltimore, MD, ³AMPEL BioSolutions, Charlottesville, VA, ⁴UCB Pharma, Monheim am Rheim, Germany
Background/Purpose: The pivotal role of CD40-CD40L interactions in systemic lupus erythematosus (SLE) pathogenesis stems from the orchestration of a range of immune and inflammatory responses…
Abstract Number: 0011 • ACR Convergence 2023
Clock Gene Bmal1 Promotes Transcriptional Activity of NF-κB to Regulate Production of Inflammatory Mediators in RA-FLS
Hikari Tsukamoto¹, Kenta Kaneshiro², Kohsuke Yoshida¹, Koji Tateishi³, Yasuhiro Terashima³, Nao Shibanuma⁴, Yoshitada Sakai⁵ and Akira Hashiramoto¹, ¹Kobe University Graduate School of Health Sciences, Kobe, Japan, ²Kobe University Graduate School of Health Sciences, Osaka, Japan, ³Kohnan Kakogawa Hospital, Kakogawa, Japan, ⁴Kobe Kaisei Hospital, Kobe, Japan, ⁵Kobe University Graduate School of Medicine, Kobe, Japan
Background/Purpose: Rheumatoid arthritis (RA), an autoimmune polyarthritis characterized by 'tumor-like' proliferation of RA fibroblast-like synovial cells (RA-FLS), has characteristic symptoms such as "morning stiffness of…
Abstract Number: 0902 • ACR Convergence 2023
Neutrophils in Systemic Lupus Erythematosus Demonstrate Heterogeneity Based on Sex
William Ambler¹, Gustaf Wigerblad¹, Eduardo Patino-martinez¹, Shuichiro Nakabo¹, Norio Hanata¹, Stephen Brooks², Kan Jiang², Carmelo Carmona-Rivera¹ and Mariana Kaplan³, ¹Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skins Diseases, National Institutes of Health, Bethesda, MD, ²Biodata Mining and Discovery Section, National Institute of Arthritis and Musculoskeletal and Skins Diseases, National Institutes of Health, Bethesda, MD, ³Lupus Clinical Trials Unit, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health (NIH); Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health (NIH), Bethesda, MD
Background/Purpose: Sex differences in the immune system may contribute to o an increased incidence of autoimmunity in women and an increased susceptibility to infection and…
Abstract Number: 2438 • ACR Convergence 2023
Synovial Tissue Single-Cell Analysis Demonstrates Differential Fibroblast Populations Between RA and PsA Which Display Distinct Function
Órla Tynan¹, Mary Canavan², Achilleas Floudas³, Conor Smith⁴, Aoife O' Rourke⁴, Dumitru Anton⁵, Carl Orr⁶, Douglas Veale⁷ and Ursula Fearon⁸, ¹Molecular Rheumatology Department, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland, EULAR Centre for Arthritis and Rheumatic Diseases, St Vincent University Hospital, University College Dublin, Dublin, Ireland, ²Molecular Rheumatology Department, Trinity Biomedical Sciences Institute, Trinity College Dublin, EULAR Centre for Arthritis and Rheumatic Diseases, St Vincent University Hospital, University College Dublin, School of Biochemistry & Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ³Dublin City University, Dublin, Ireland, ⁴Translational Immunology, Trinity Biomedical Sciences Institute, Dublin, Ireland, ⁵Molecular Rheumatology Department, Trinity Biomedical Sciences Institute, Trinity College Dublin, EULAR Centre for Arthritis and Rheumatic Diseases, St Vincent University Hospital, University College Dublin, Dublin, Ireland, ⁶EULAR Centre for Arthritis and Rheumatic Diseases, St Vincent University Hospital, University College Dublin, Dublin, Ireland, ⁷St.Vincent's University Hosp, Dublin, Ireland, ⁸Trinity College Dublin, Dublin, Ireland
Background/Purpose: Synovial fibroblasts (FLS) are key contributors to joint inflammation and damage in patients with Rheumatoid (RA) and Psoriatic Arthritis (PsA). Recent studies have identified…
Abstract Number: 0022 • ACR Convergence 2023
Validation of a Transcriptomic-Based Machine Learning Model to Establish the Endotype of SLE Patients
Erika Hubbard¹, Prathyusha Bachali², Kathryn Kingsmore Allison¹, Amrie Grammer¹ and Peter Lipsky¹, ¹AMPEL BioSolutions, Charlottesville, VA, ²AMPEL BioSolutions, Redmond, WA
Background/Purpose: We previously developed a novel machine learning (ML) pipeline leveraging analysis of gene expression data to identify subsets of SLE patients with common molecular…
Abstract Number: 0941 • ACR Convergence 2023
RUNX1 Expression and Binding Site Accessibility Is Associated with Increased Disease Severity in Systemic Sclerosis
Rezvan Parvizi¹, Zhiyun Gong¹, Dillon Popovich¹, Tamar Abel², Helen Jarnagin¹, Madeline Morrisson¹, Tammara Wood², Jonathan Garlick³, Monique Hinchcliff⁴, Patricia Pioli¹ and Michael Whitfield¹, ¹Geisel School of Medicine at Dartmouth, Hanover, NH, ²Dartmouth College, Hanover, NH, ³Tufts University School of Dental Medicine, Boston, MA, ⁴Yale School of Medicine, Westport, CT
Background/Purpose: Runt-related transcription factor 1 (RUNX1) is a member of the core-binding factor family that regulates proliferation, differentiation, and cell survival in multiple cell lineages.…
Abstract Number: 2445 • ACR Convergence 2023
Targeting of Endothelial Dysfunction in Lupus Nephritis: Effect on Human Renal Endothelial Cell Gene Expression and Outcomes in Murine Lupus Nephritis
Dayvia Russell¹, Sandra Sanchez², Evelyn Bruner² and Jim Oates², ¹Ralph H. Johnson VA Medical Center, Charleston, SC, ²Medical University of South Carolina, Charleston, SC
Background/Purpose: Lupus nephritis (LN) constitutes one of the most severe manifestations of systemic lupus erythematosus (SLE). Evidence points to endothelial nitric oxide synthase (eNOS) uncoupling,…
Abstract Number: 0032 • ACR Convergence 2023
Quantification of the Escape from X Chromosome Inactivation with the Million Cell-scale Human Blood Single-cell RNA-seq Datasets Reveals Heterogeneity of Escape Across Immune Cells and Escape in the Autoimmune Disease Conditions
Yoshihiko Tomofuji¹, Ryuya Edahiro¹, Yuya Shirai¹, Kyuto Sonehara², Qingbo Wang¹, Atsushi Kumanogoh¹ and Yukinori Okada³, ¹Osaka University, Suita, Japan, ²University of Tokyo, Tokyo, Japan, ³University of Tokyo / Osaka University / RIKEN, Tokyo, Japan
Background/Purpose: Understanding the differences in the immune system between sexes is important to elucidate the pathogenesis of autoimmune diseases which are more prevalent in females…
Abstract Number: 1167 • ACR Convergence 2023
Transcriptome Analysis of Peripheral Blood Reveals Superiority of the Triple Combination of Baricitinib, Rituximab, and Tacrolimus Therapy (BRT-Tx.) for anti-MDA5 Antibody-positive Dermatomyositis (MDA5-DM)
Yoshinobu Koyama¹, Yoshiharu Sato², Yu Nakai³ and Moe Tokunaga(Sakamoto)³, ¹Japanese Red Cross Okayama Hospital, Okayama, Japan, ²DNA Chip Research Inc, Tokyo, Japan, ³Rheumatology, Center for Autoimmune diseases, Japanese Red Cross Okayama Hospital, Okayama, Japan
Background/Purpose: MDA5-DM is characterized by high mortality due to rapid progressive ILD. We reported that in MDA-5DM, (1) RIG-1-like receptor signaling is enhanced, (2) antiviral…
Abstract Number: 2481 • ACR Convergence 2023
Pre-pregnancy Gene Expression Signatures Among Women with Rheumatoid Arthritis May Represent Predictive Biomarkers for Subsequent Improvement or Worsening During Pregnancy
Matthew Wright¹, Mette Smed², Lee Nelson³, Jørn Olsen⁴, Merete Hetland⁵, Nicholas Jewell⁶, Vibeke Zoffmann² and Damini Jawaheer¹, ¹Northwestern University, Chicago, IL, ²Juliane Marie Centre, Rigshospitalet, Copenhagen, Denmark, ³Fred Hutchinson Cancer Center, Seattle, WA, ⁴Aarhus University Hospital, Aarhus, Denmark, ⁵Copenhagen Center for Arthritis Research, Rigshospitalet, Copenhagen, Denmark, ⁶London School of Hygiene and Tropical Medicine, London, United Kingdom
Background/Purpose: Rheumatoid arthritis (RA) can improve naturally during pregnancy in a substantial proportion of women (50-75%), while it may worsen or remain unchanged in others.…

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