Abstracts Archive - Page 741 of 2607 - ACR Meeting Abstracts

Abstract Number: 0538 • ACR Convergence 2021
Strengthening Nuclear Envelope Ameliorates UVB-triggered Skin Inflammation and Kidney Damage in Lupus Mice
Xing Lyu¹, Minghui Li², Ping L Zhang³, Victoria Werth⁴ and Ming-Lin Liu⁴, ¹Tianjin Medical University General Hospital, Philadelphia, PA, ²Tianjin Medical University General Hospital, Tianjin, China (People's Republic), ³Division of Anatomic Pathology,Beaumont Laboratories, Beaumont Health, Royal Oak, MI, ⁴University of Pennsylvania, Philadelphia, PA
Background/Purpose: Ultraviolet B (UVB) exposure triggers lupus flare by worsening skin lesions and systemic symptoms such as lupus nephritis. The effects of UVB-induced skin inflammation…
Abstract Number: 0539 • ACR Convergence 2021
Vgll3-transgenic Autoimmune Mice Display Features of Cutaneous Fibrosis
Mehrnaz Gharaee-Kermani¹, Allison Billi², Marisa Hildebrandt², Jacob Martens³, Rachael Wasikowski², Joanne (Michelle) Kahlenberg¹ and Johann Gudjonsson², ¹Internal Medicine - Division of Rheumatology and Department of Dermatology, University of Michigan, Ann Arbor, MI, ²Department of Dermatology, University of Michigan, Ann Arbor, MI, ³Graduate Program in Immunology, University of Michigan, Ann Arbor, MI, USA, Ann Arbor, MI
Background/Purpose: Fibrosis is characterized by collagen deposition, fibro/myofibroblast accumulation, and extracellular matrix remodeling and can lead to disfiguring skin changes. In cutaneous lupus, scar formation…
Abstract Number: 0540 • ACR Convergence 2021
Behavioral Deficits May Precede Influx of Brain-Infiltrating Macrophages in Neuropsychiatric Symptoms of Systemic Lupus Erythematosus
Hadijat Makinde, Miranda Gurra, Yidan Wang, Sara Radecki and Carla Cuda, Northwestern University, Chicago, IL
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex autoimmune disease that affects many end organs including the brain. Despite a prevalence of over 50% in…
Abstract Number: 0541 • ACR Convergence 2021
N-formyl Methionine Peptide-mediated Neutrophil Activation in Systemic Sclerosis
Runa Kuley¹, Ryan Stultz², Bhargavi Duvvuri², Roger Hesselstrand³, J Lee Nelson⁴ and Christian Lood², ¹Division of Rheumatology, University of Washington, Seattle, WA, ²University of Washington, Seattle, WA, ³Lund University, Lund, Sweden, ⁴Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA
Background/Purpose: Systemic sclerosis (SSc) is a complex systemic autoimmune disease, and its etiology is unknown. Exaggerated neutrophil activation and formation of neutrophil extracellular traps (NETs)…
Abstract Number: 0542 • ACR Convergence 2021
Functional Characterization of Glycoprotein Nonmetastatic Melanoma Protein B in Scleroderma Fibrosis
Pamela Palisoc¹, Leah Vaikutis¹, Ellen Model¹, Morgan Omara¹, Dinesh Khanna¹, Eliza Pei-Suen Tsou¹ and Amr Sawalha², ¹University of Michigan, Ann Arbor, MI, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Glycoprotein nonmetastatic melanoma protein B (GPNMB) is widely expressed on stromal cells and immune cells. It is involved in various cell functions such as…
Abstract Number: 0543 • ACR Convergence 2021
Novel Insights into Systemic Sclerosis Using a Sensitive Computational Method to Analyze Whole-genome Bisulfite Sequencing Data
Jeffrey Yu¹, Tianyuan Lu¹, Kaiqiong Zhao¹, Kathleen Oros Klein¹, Maximilien Lora², Ines Colmegna³, Celia MT Greenwood⁴ and Marie Hudson², ¹Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC, Canada, ²McGill University, Montréal, QC, Canada, ³The Research Institute of the McGill University Health Centre, Montréal, QC, Canada, ⁴Epidemiology, Biostatistics and Occupational Health / Faculty of Medicine and Health Sciences / McGill University, Montréal, QC, Canada
Background/Purpose: While the etiology of systemic sclerosis (SSc) remains largely unknown, epigenetic dysregulation including abnormal DNA methylation is thought to contribute to its onset and…
Abstract Number: 0544 • ACR Convergence 2021
Targeting CD13/aminopeptidase N as a Novel Therapeutic Approach for Scleroderma Fibrosis
Eliza Pei-Suen Tsou, M.Asif Amin, Phillip Campbell, Mikel Gurrea-Rubio, Morgan Omara, Ellen Model, Pamela Palisoc, Mustafa Ali, Sirapa Vichaikul, Jonatan Hervoso, Jeffrey Ruth, Dinesh Khanna and David Fox, University of Michigan, Ann Arbor, MI
Background/Purpose: Aminopeptidase N, also known as CD13, is a Zn2+-dependent membrane bound ectopeptidase widely expressed in mammalian cells including rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS),…
Abstract Number: 0545 • ACR Convergence 2021
SIRT1 Modulates the Senescent Phenotype in Scleroderma Endothelial Cells
Ellen Model, Morgan Omara, Pamela Palisoc, Dinesh Khanna and Eliza Pei-Suen Tsou, University of Michigan, Ann Arbor, MI
Background/Purpose: Vascular abnormalities in systemic sclerosis (SSc) are characterized by injury to vascular wall and extensive damage of the microvessels. It has been shown that…
Abstract Number: 0546 • ACR Convergence 2021
Integrated Analysis of Dermal Blister Fluid Proteomics and Genome-wide Skin Gene Expression Gives New Insight into Pathogenesis of Systemic Sclerosis
Kristina Clark¹, Eszter Csomor², Corrado Campochiaro³, Adam Taylor⁴, Yee Voan Teo², Katherine Nevin², Mary Morse², Voon Ong⁵, Emma Derrett-Smith⁶, Nicolas Wisniacki², Shaun Flint² and Christopher Denton⁷, ¹University College London, London, United Kingdom, ²GlaxoSmithKline, Stevenage, Hertfordshire, United Kingdom, ³Royal Free Hospital London, London, United Kingdom, ⁴GlaxoSmithKline, London, United Kingdom, ⁵University College London Medical School Royal Free Campus, London, United Kingdom, ⁶University College London Division of Medicine, London, United Kingdom, ⁷University College London Division of Medicine, Centre for Rheumatology and Connective Tissue Diseases, London, United Kingdom
Background/Purpose: Suction blister fluid provides a unique opportunity to analyse the dermal microenvironment of SSc. We report an integrated analysis of proteomic data from dermal…
Abstract Number: 0547 • ACR Convergence 2021
Autologous Haematopoietic Stem Cell Transplantation for Systemic Sclerosis Results in Sustained Changes in Immunoregulatory T and NK Cells
Ross Penglase, Malini Visweswaran, John Zaunders, Laila Girgis, David Ma and John Moore, St Vincent's Hospital, Sydney, Australia
Background/Purpose: Autologous Haematopoietic Stem Cell Transplantation (AHSCT) is an effective treatment for severe systemic sclerosis (SSc). To date, mechanistic studies have indicated possible pro-regulatory and…
Abstract Number: 0548 • ACR Convergence 2021
Rapamycin Blocks the Profibrotic Effects of Fli1 Downregulation in Scleroderma Myeloid Cells
Fatima El-adili, Grace Marden, Maria Trojanowska and Andreea Bujor, Boston University School of Medicine, Boston, MA
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune fibrotic disease with unclear pathogenesis and no effective therapies. Increased proportion of CD163-positive, profibrotic macrophages has been described…
Abstract Number: 0549 • ACR Convergence 2021
Upregulation of Prostanoid EP2 Receptors and Meditation of Treprostinil Anti-Proliferative Effects in Scleroderma Smooth Muscle Cells
Yongqing Wang¹, Nezam Altorok² and Bashar Kahaleh², ¹University of Toledo Medical Center, Toledo, OH, ²University of Toledo, Toledo, OH
Background/Purpose: Progressive functional and structural vascular disorder is one of the hallmark features of Systemic Sclerosis (Scleroderma, SSc). Vascular dysfunction leads to dysregulated vascular tone…
Abstract Number: 0550 • ACR Convergence 2021
Treatment Regimens and Outcomes in Systemic Sclerosis-associated Pulmonary Arterial Hypertension
Hilde Jenssen Bjørkekjær¹, Håvard Fretheim², Helene Marjavara Inselseth³, Øyvind Midtvedt⁴, Imon Barua⁴, Torhild Garen⁵, Helle Bitter¹, Arne Andreassen⁶, Øyvind Molberg⁴, Kaspar Broch⁶ and Anna-Maria Hoffmann-Vold⁴, ¹Department of Rheumatology, Sørlandet sykehus HF, Kristiansand, Norway, ²Oslo University Hospital, Oslo, Norway, ³University of Oslo, Oslo, Norway, ⁴Department of Rheumatology, Oslo University Hospital, Oslo, Norway, ⁵Department of Rheumatology, Oslo University Hospital, Oslo, Nepal, ⁶Department of Cardiology, Oslo University Hospital, Oslo, Norway
Background/Purpose: Pulmonary arterial hypertension (PAH) is a major clinical challenge in systemic sclerosis (SSc). It is associated with impaired quality of life and high mortality.…
Abstract Number: 0551 • ACR Convergence 2021
Metabolic Intermediate Dimethyl-Alpha-Ketoglutarate Is a Novel Repressor of Pathogenic Myofibroblast Reprogramming and Skin Fibrosis in Systemic Sclerosis
Blaž Burja¹, Ishani Banik², Shervin Assassi³, Michael Whitfield⁴, J. Matthew Mahoney⁵, Andreja Erman⁶, Matija Tomšič⁷, Mitchell P. Levesque², Snežna Sodin-Šemrl⁷, Gabriela Kania⁸, Hubert Rehrauer⁹, Ziga Rotar⁷, Oliver Distler¹⁰, Katja Lakota¹¹ and Mojca Frank-Bertoncelj¹⁰, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich and Department of Rheumatology, University Medical Centre Ljubljana, Zurich, Switzerland, ²Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ³University of Texas McGovern Medical School at Houston, Houston, TX, ⁴Geisel School of Medicine, Lebanon, NH, ⁵Center for Quantitative Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, ⁶Institute for Cell Biology, University Medical Centre Ljubljana, Ljubljana, Slovenia, ⁷Department of Rheumatology, University Medical Centre Ljubljana, Ljubljana, Slovenia, ⁸Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ⁹Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich, Switzerland, ¹⁰Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich/University of Zurich, Zurich, Switzerland, ¹¹Department of Rheumatology, University Medical Centre Ljubljana, Llubljana, Slovenia
Background/Purpose: Metabolic perturbations drive fibroblast-to-myofibroblast reprogramming and tissue fibrosis. Restoring perturbed metabolism might represent a new antifibrotic strategy. Here we explored the capacity of dimethyl-alpha-ketoglutarate…
Abstract Number: 0552 • ACR Convergence 2021
Long Non-coding RNA H19X as a Regulator of Endothelial Adhesion Molecules in Systemic Sclerosis
Francesca Tirelli¹, Elena Pachera¹, Robert Lafyatis², Menqi Huang³, Francesco Zulian⁴, Gabriela Kania¹ and Oliver Distler⁵, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ²University of Pittsburgh, Pittsburgh, PA, ³Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, ⁴Rheumatology Unit, Department of Woman and Child Health - University of Padova, Padova, Italy, ⁵Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich/University of Zurich, Zurich, Switzerland
Background/Purpose: Long non-coding RNAs (lncRNAs) are non-coding transcripts involved in the regulation of gene expression; their role in disease development, to date, remains largely under…

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