Abstracts tagged "Gene Expression"

Abstract Number: 1526 • ACR Convergence 2020
Single Cell Analysis of Skin and Blood of Scleroderma Patients Towards Identification of New Disease Mechanisms, Prognostic Biomarkers and Potential Therapeutic Targets
Chamutal Gur¹, Postil 158626², Hagit Peleg³, Suhail Aamar³, Fadi Kharouf³, Anat Elazary³, Yolanda Braun-Moscovici Braun-Moscovici⁴, Shuang-Yin Wang⁵ and Ido Amit⁵, ¹Hadassah Medical Center, Hebrew University, Laboratory for Immuno-Genomics, Weizmann Institute of Science, Jerusalem, Israel, ²Rambam Health Care Campus, Technion-Israeli Institute of Technology, Kiriat Mozkin, HaZafon, Israel, ³Hadassah Medical Center, Jerusalem, Israel, ⁴Rambam Health Care Campus, Technion-Israeli Institute of Technology, Haifa, Israel, ⁵Laboratory for Immuno-Genomics, Weizmann Institute of Science, Rehovot, Israel
Background/Purpose: Systemic sclerosis (SSc) is characterized by fibrosis, microangiopathy and immune dysregulation. Despite many years of research, the pathogenesis of SSc is poorly understood; there…
Abstract Number: 0707 • ACR Convergence 2020
Contribution of NOTUM and Glypicans to the Development of Osteoarthritis
Arkaitz Mucientes¹, Eva Herranz¹, Pia Lois², Gloria Candelas², Lydia Abasolo¹, Luis Rodriguez-Rodriguez¹, Jose Ramon Lamas¹ and Benjamin Fernandez-Gutierrez³, ¹IdISSC, Madrid, Madrid, Spain, ²Hospital Clínico San Carlos, Madrid, Madrid, Spain, ³Hospital Clínico San Carlos / IdISSC, Madrid, Madrid, Spain
Background/Purpose: Osteoarthritis (OA) is a degenerative disease characterized by altered homeostasis of joint cartilage and bone, the functionality of which relies on chondrocytes and osteoblasts,…
Abstract Number: 1529 • ACR Convergence 2020
Differentially Expressed Chemokines and Cytokines in Peripheral Blood Mononuclear Cells (PBMCs) of Rheumatoid Arthritis (RA) Patients
Noha Elemam¹, Mahmood Hachim², Suad Hannawi³ and Azzam Maghazachi⁴, ¹University of Sharjah, Sharjah, United Arab Emirates, ²Mohammed Bin Rashid University Of Medicine and Health Sciences, Dubai, ³Ministry of Health and Prevention, Dubai, United Arab Emirates, ⁴University of Sharjah, Sharjah
Background/Purpose: Rheumatoid arthritis (RA) is the most prevalent autoimmune disease, where various immune cells are associated such as monocytes, natural killer (NK) cells, B cells,…
Abstract Number: 0764 • ACR Convergence 2020
Uncovering Novel Biomarkers for Rheumatoid Arthritis from Feature Selection and Machine Learning Approaches on Synovium and Blood Gene Expression Data
Dmitry Rychkov¹, Jessica Neely¹ and Marina Sirota¹, ¹UCSF, San Francisco, CA
Background/Purpose: There is an urgent need to develop objective biomarkers for early diagnosis and monitoring of disease activity in Rheumatoid arthritis (RA). Here we define…
Abstract Number: 1611 • ACR Convergence 2020
Documentation of Pregnancy Counseling in SSA-Positive Patients of Childbearing Potential: A Cross-Sectional Study
Heinrich-Karl Greenblatt¹ and Elena Weinstein¹, ¹University of Colorado School of Medicine, Aurora, CO
Background/Purpose: Systemic lupus erythematosus (SLE) and primary Sjogren's Syndrome (SS) are highly associated with anti-SSA (anti-Ro) seropositivity. Anti-SSA autoantibodies may cross the placenta, causing a…
Abstract Number: 0866 • ACR Convergence 2020
Identifying an SLE Patient Cluster with Greater Treatment Effect: Immune Cell Deconvolution of Gene Expression in Two Atacicept Phase II Studies
Joan Merrill¹, Matthew Studham², Eric Morand³, Aida Aydemir², Cristina Vazquez Mateo², Alex Rolfe², Amy Kao² and Robert Townsend², ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²EMD Serono (a business of Merck KGaA, Darmstadt, Germany), Billerica, MA, ³Medicine, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Australia
Background/Purpose: Atacicept, a dual inhibitor of the B lymphocyte stimulator and a proliferation-inducing ligand (APRIL), has been associated with a reduction of flares in the…
Abstract Number: 1670 • ACR Convergence 2020
Low Copy Number of Long C4 Genes Is a Genetic Risk Factor for Childhood Onset SLE (cSLE) but Is Associated with Higher Age of Disease Onset
Fatima Barbar-Smiley¹, Danlei Zhou², Joanne Drew², Bi Zhou², Cagri Yildirim-Toruner², Vidya Sivaraman³, Wael Jarjour⁴, Stacy Ardoin² and Chack-Yung Yu⁵, ¹Nationwide Children's Hospital/The Ohio State University, Columbus, OH, ²Nationwide Children's Hospital, Columbus, OH, ³Nationwide Children's Hospital, Bexley, OH, ⁴The Ohio State University, Columbus, OH, ⁵Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH
Background/Purpose: Hypocomplementemia is a marked feature of systemic lupus erythematosus (SLE), which may be a result of consumption initiated by immune complexes between self-nuclear antigens…
Abstract Number: 0969 • ACR Convergence 2020
Investigating Murine Joint-Draining Lymphatics: Lineage Tracing and Single Cell RNA Sequencing Reveal Evidence That Popliteal Lymphatic Muscle Cells and Their Progenitors Represent Distinct Cell Types Divergent from Striated and Vascular Muscle Cells
H. Mark Kenney¹, Richard Bell², Elysia Masters¹, Lianping Xing¹, Christopher Ritchlin³ and Edward Schwarz¹, ¹University of Rochester Medical Center, Rochester, ²Hospital for Special Surgery, New York, ³Department of Medicine, University of Rochester Medical Center, Rochester, NY
Background/Purpose: Previous studies demonstrated that tumor necrosis factor transgenic (TNF-Tg) mice with inflammatory arthritis have damaged lymphatic muscle cells (LMCs) and eventual loss of popliteal…
Abstract Number: 1850 • ACR Convergence 2020
The Association Between Imaging Sub-phenotypes of Psoriatic Arthritis and Gene Expression Profiles
Lihi Eder¹, Lee Quan², Sara Rahmati³, Iris Eshed⁴, Proton Rahman⁵, Igor Jurisica⁶ and Vinod Chandran⁷, ¹Women’s College Research Institute, University of Toronto, Toronto, ON, Canada, ²University of Toronto, Toronto, Canada, ³University Health Network, Toronto, ON, Canada, ⁴Sheba Medical Center, Tel-Aviv, Israel, ⁵Memorial University of Newfoundland, Department of Medicine, St John's, Canada, ⁶Krembil RI, Toronto, Canada, ⁷Krembil Research Institute, Toronto Western Hospital, Toronto, ON, Canada
Background/Purpose: Heterogeneity is a hallmark of psoriatic arthritis (PsA), which is reflected in diverse clinical, imaging and molecular features, various disease courses and treatment responses.…
Abstract Number: 0971 • ACR Convergence 2020
Single-cell Profiling of Synovial Stromal Cells Reveals an Angiocrine Endothelium in Rheumatoid Arthritis
Kevin Wei¹, Ilya Korsunsky², Jennifer Marshall³, Gerald Watts⁴, Triin Major³, Zhu Zhu⁴, Yuhong Li⁵, Christopher Buckley⁶, Soumya Raychaudhuri⁷ and Michael Brenner¹, ¹Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ²Brigham and Women's Hospital, Boston, MA, ³Rheumatology Research Group, Institute for Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Queen Elizabeth Hospital, Birmingham, United Kingdom, ⁴Brigam and Women's Hospital, Boston, ⁵Brigham and Women's Hospital, Boston, ⁶University of Birmingham, Birmingham, United Kingdom, ⁷Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Vascular endothelial cells that provide the structure for blood vessels have traditionally been perceived as passive, structural units that provide blood flow. We recently…
Abstract Number: 1910 • ACR Convergence 2020
Integrated Molecular Analysis of Systemic Sclerosis Skin and Blood Highlights Significant Differences Between Major Autoantibody Subgroups
Kristina Clark¹, Corrado Campochiaro², Eszter Csomor³, Adam Taylor³, Katherine Nevin³, Nicholas Galwey³, Mary Morse³, Voon Ong⁴, Emma Derrett-Smith⁵, Shaun Flint³ and Christopher Denton¹, ¹University College London, London, United Kingdom, ²Royal Free Hospital NHS trust, London, United Kingdom, ³GlaxoSmithKline, Stevenage, United Kingdom, ⁴UCL, London, United Kingdom, ⁵University College London Division of Medicine, London, United Kingdom
Background/Purpose: The major antinuclear autoantibodies of systemic sclerosis (SSc) associate with different skin score trajectories and risk of internal organ manifestations. To elucidate molecular differences…
Abstract Number: 1038 • ACR Convergence 2020
STAT1 and JAK2 Are the Most Appropriate Targets of JAK-inhibitor Therapy for Sarcoidosis: An In-silico Meta-nalysis
Marcia Friedman¹, Brian Le², Dongseok Choi² and James Rosenbaum², ¹Oregon Health and Science University, Portland, OR, ²Oregon Health & Science University, Portland, OR
Background/Purpose: Our group was the first to contend that STAT1 mediated genes were expressed in sarcoidosis. Since that time, several other groups have found similar…
Abstract Number: 1911 • ACR Convergence 2020
IL-11 Expression in Systemic Sclerosis Pulmonary Fibroblasts Is Mediated by Caspase-1
Caya McFalls¹ and Carol Artlett¹, ¹Drexel University College of Medicine, Philadelphia
Background/Purpose: Interleukin-11 (IL-11) has been shown to be associated with idiopathic pulmonary fibrosis, cardiac and kidney fibrosis. However, conflicting data shows IL-11 can be either…
Abstract Number: 0032 • ACR Convergence 2020
A Prospective, Multicenter, Clinical Performance Evaluation Study for an in-vitro Diagnostics Medical Device (PREDYSTIC® Infliximab RA) for Prediction of Infliximab Responsiveness in the Treatment of Rheumatoid Arthritis
Miklos Sebeszta¹, Katalin Tauberne Jakab¹, Tamas Ponyi¹, Gyula Poor², Zsolt Hollo¹, Laszlo Szilagyi¹, Emese Kiss² and Gabor Zahuczky³, ¹Egis Pharmaceuticals, Budapest, Hungary, ²ORFI, Budapest, Hungary, ³UD Genomed, Debrecen, Hungary
Background/Purpose: Approximately 30-40% of RA patients fail to respond to first biological therapy. Predicting the patient’s responsiveness to the first biological therapy is still an…
Abstract Number: 1039 • ACR Convergence 2020
Tofacitinib as a Steroid-sparing Therapy in Pulmonary Sarcoidosis: Two Prospective Cases and Molecular Analysis
Marcia Friedman¹, Stevens Janelle², Julianna Desmarais³, Daniel Seifer³, Brian Le³, Kimberly Ogle³, Christina Harrington³, Peter Jackson⁴, Dongseok Choi³ and James Rosenbaum³, ¹Oregon Health and Science University, Portland, OR, ²Tuality Healthcare, Hillsboro, OR, ³Oregon Health & Science University, Portland, OR, ⁴Johns Hopkins University, Baltimore, MD
Background/Purpose: Patients with pulmonary sarcoidosis often require prolonged corticosteroids to treat their disease. There are currently no FDA approved steroid-sparing therapies for sarcoidosis. We report…

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