Abstracts tagged "Fibroblasts, Dermal"

Abstract Number: 0952 • ACR Convergence 2023
Unraveling the Role of MiR-181 in Skin Fibrosis Pathogenesis by Targeting NUDT21
Tingting Mills¹, Minghua Wu², Hydia Puente³, Jerry Alonso⁴, Julio charles⁴, Maureen Mayes⁴ and Shervin Assassi⁵, ¹Biochemistry Department, University of Texas McGovern Medical School, Houston, TX, ²Department of Internal Medicine, Division of Rheumatology, The University of Texas Health Science Center at Houston, Houston, TX, ³UTHealth-Houston, Houston, TX, ⁴Division of Rheumatology, University of Texas McGovern Medical School, Houston, TX, ⁵University of Texas McGovern Medical School at Houston, Houston, TX
Background/Purpose: Nudix Hydrolase 21 (NUDT21, also known as CFIm25) is a master regulator of alternative polyadenylation. Previous studies have revealed that NUDT21 is significantly decreased…
Abstract Number: 0953 • ACR Convergence 2023
Flavin-containing Monooxygenase (FMO3) Links the Gut and Fibrosis in Systemic Sclerosis
Priyanka Verma¹, Bharath Yalavarthi¹, Karen Ho², Lutfiyya Muhammad³, Seokjo Kim⁴, Johann Gudjonsson¹, Rebecca C Schugar⁵, Mark Brown⁶, Xinmin Li⁶, Stanley L Hazen⁷, Swati Bhattacharyya¹ and John Varga¹, ¹University of Michigan, Ann Arbor, MI, ²Northwestern University, Chicago, IL, ³Northwestern University Feinberg School of Medicine, Chicago, IL, ⁴4SCM Lifescience Co. Ltd, South Korea, Japan, ⁵Stanford University, Stanford, CA, ⁶Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, ⁷Division of Endocrinology, Department of Medicine, Stanford University, Stanford, CA
Background/Purpose: Trimethylamine (TMA) generated by the gut microbiome is converted into trimethylamine N-oxide (TMAO) via the host enzyme FMO3. The TMA-FMO3-TMAO metaorganismal axis has been…
Abstract Number: 0954 • ACR Convergence 2023
Non-canonical WNTA Promotes Cytoskeletal Rearrangement and Integrin Alpha V Clustering via JNK and ROCK to Control the Activation of Latent TGFβ
Thuong Trinh-Minh¹, Chih-Wei Chen², Cuong Tran Manh¹, yi-nan Li¹, Honglin Zhu³, Debomita Chakraborty⁴, Yun Zhang¹, Simon Rauber⁵, Clara Dees⁵, Christina Bergmann⁶, Alexander Kreuter⁷, Christiane Reuter⁸, Florian Groeber-Becker⁸, Beate Eckes⁹, Oliver Distler¹⁰, Andreas Ramming¹¹, Georg Schett¹² and Joerg Distler¹, ¹Clinic for Rheumatology University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University, Düsseldorf, Germany; Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University, Düsseldorf, Germany, ²3 Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany. 4 Deutsches Zentrum für Immuntherapie, Friedrich Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany., Erlangen, Germany, ³3 Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany. 4 Deutsches Zentrum für Immuntherapie, Friedrich Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany. 5 Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China, ⁴3 Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany. 4 Deutsches Zentrum für Immuntherapie, Friedrich Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ⁵3 Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany. 4 Deutsches Zentrum für Immuntherapie, Friedrich Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany., Erlangen, Germany, ⁶Department Internal Medicine, University Hospital Erlangen, Germany, Erlangen, Germany, ⁷Clinic for Dermatology, Venereology and Allergology, HELIOS St. Elisabeth Clinic, Oberhausen, Germany, ⁸Translational Center for Regenerative Therapies, Fraunhofer Institute for Silicate Research (ISC) Würzburg, Würzburg, Germany, ⁹Translational Matrix Biology, University of Cologne, Cologne, Germany. 9 Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Köln, Germany, ¹⁰Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ¹¹Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany; Deutsches Zentrum für Immuntherapie, Friedrich Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ¹²Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
Background/Purpose: Systemic sclerosis (SSc) is a chronic autoimmune disorder with vasculopathy, inflammation, and fibrosis of the skin and organs. Fibrosis is caused by the abnormal…
Abstract Number: 0957 • ACR Convergence 2023
Rationale for Targeting Insulin-like Growth Factor Signalling in Systemic Sclerosis
Voon Ong¹, Shiwen Xu², Li Xue², Brajesh Kumar³ and Christopher Denton², ¹UCL Medical School Royal Free Campus, London, United Kingdom, ²University College London, London, United Kingdom, ³Horizon Therapeutics, South San Francisco, CA
Background/Purpose: Previous studies have shown that insulin like growth factor (IGF) pathways may promote extracellular matrix deposition and be upregulated in systemic sclerosis (SSc). Teprotumumab,…
Abstract Number: 0960 • ACR Convergence 2023
MiR-3606-3p Alleviates Skin Fibrosis by Suppressing Fibroblast Inflammation and Migration via Inhibiting GAB1 and ITGAV
yahui chen¹, Mengkun shi¹, Wei Wang¹, Chenyi Shi¹, Xueyi Xia¹, wenyu Wu², Jiucun Wang³ and Xiangguang Shi³, ¹Fudan University, Shanghai, China, ²Huashan Hospital, Shanghai, China, ³Shanghai, Shanghai, China
Background/Purpose: Systemic sclerosis (SSc) and keloid are typical skin fibrotic diseases with unclear epigenetic mechanisms and clinical targets. As an important epigenetic regulatory factor, microRNAs…
Abstract Number: 0085 • ACR Convergence 2023
Fibroblasts Promote Upregulation of Cannabinoid Type 2 Receptor on Inflammatory Cells in Dermatomyositis
DeAnna Diaz¹, Muhammad Bashir¹, Rohan Dhiman², Avital Baniel¹, Julianne Kleitsch¹, Rachita Pandya¹, Meena Sharma¹, Thomas Vazquez¹, Ming-Lin Liu², Mariko Momohara² and Victoria Werth³, ¹Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, ²University of Pennsylvania, Philadelphia, PA, ³University of Pennsylvania and Corporal Michael J. Crescenz VAMC, Philadelphia, PA
Background/Purpose: Dermatomyositis (DM) is a chronic, systemic autoimmune disease affecting the skin, muscle, and lungs. The activation of CB2R has been shown to reduce several,…
Abstract Number: 0963 • ACR Convergence 2023
Anti-Topoisomerase Antibody in dcSSc: Unravelling Its Intracellular Effects in Systemic Sclerosis
Maithri Aspari¹, Josephine Geertsen Keller-Socin¹, Stinne Greisen², Esben Naeser³, Klaus Soendergaard⁴, Birgitta R Knudsen⁵, Voon Ong⁶, Christopher Denton⁷, David Abraham⁷ and Bent Deleuran¹, ¹Aarhus University, Aarhus, Denmark, ²Aarhus University/Aarhus University Hospital, Aarhus, Denmark, ³Rheumatology, Aarhus University Hospital, Aarhus, Denmark, ⁴Aarhus University Hospital, Aarhus, Denmark, ⁵Institute for molecular Biology, Aarhus University, Aarhus, Denmark, ⁶UCL Medical School Royal Free Campus, London, United Kingdom, ⁷University College London, London, United Kingdom
Background/Purpose: The presence of autoantibodies, especially directed towards topoisomerase I (ATA), in diffuse cutaneous Systemic Sclerosis (dcSSc) is known to be associated with severe clinical…
Abstract Number: 0787 • ACR Convergence 2023
Understanding Distinct Resident and Migratory Fibroblast Populations in Systemic Sclerosis Skin Through Single-cell RNAseq and Immunohistochemistry
Kristina Clark¹, Shiwen Xu², Voon Ong³, Christopher Buckley⁴ and Christopher Denton², ¹Barts Health NHS Trust, London, United Kingdom, ²University College London, London, United Kingdom, ³UCL Medical School Royal Free Campus, London, United Kingdom, ⁴University of Oxford, Oxford, United Kingdom
Background/Purpose: We previously described distinct migratory and resident fibroblast populations from lesional skin biopsies in SSc patients. Both populations are profibrotic compared with those from…
Abstract Number: 0964 • ACR Convergence 2023
Systemic Sclerosis (SSc) Dermal Fibroblasts Show Shortened Primary Cilia Due to Aberrant Aurora a Kinase Activation Independently of Transforming Growth Factor β Signalling
Rebecca Wells¹, Rebecca Ross², Alex Timmis¹, Ioanna Georgiou¹, Colin Johnson¹, Natalia Riobo-Del Galdo¹ and Francesco Del Galdo³, ¹University of Leeds, Leeds, United Kingdom, ²Medicine and Health, University of Leeds, Leeds, United Kingdom, ³University of Leeds - Leeds Institute of Rheumatic and Muskuloskeletal Medicine, Leeds, United Kingdom
Background/Purpose: Systemic Sclerosis (SSc) is an autoimmune disorder characterised by abnormal activation of tissue fibroblasts, resulting in tissue and vascular fibrosis of the skin and…
Abstract Number: 0892 • ACR Convergence 2023
Single-Cell RNA Sequencing Reveals Keratinocytes and Fibroblasts Drive Hippo and TGFb Dysregulation and Fibrosis in Epidermal Overexpression of VGLL3 in Cutaneous Lupus
Mehrnaz Gharaee-Kermani¹, Allison Billi¹, Jacob Martens¹, Marisa Hildebrandt¹, Amanda Victory¹, Mitra Maz², Shannon Loftus¹, J. Michelle Kahlenberg¹ and Johann E. Gudjonsson¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan Medical School, Ann Arbor, MI
Background/Purpose: Fibrosis is characterized by collagen deposition, fibro/myofibroblast (MYOFB) accumulation, and extracellular matrix remodeling. In some subtypes of cutaneous lupus erythematosus (CLE), particularly discoid lupus…
Abstract Number: 1663 • ACR Convergence 2023
Clinically Severe Systemic Sclerosis Skin Harbors Inflammatory Fibroblasts Associated with Lymphocytes and Plasmacytoid Dendritic Cells
Kimberly Lakin¹, Robert Spiera², Yaxia Zhang¹, David Oliver¹, Aliza Bloostein¹, Hiranmayi Ravichandran³, Niroshana Anandasabapathy³, Franck Barrat¹, Jessica Gordon¹ and Dana Orange⁴, ¹Hospital for Special Surgery, New York, NY, ²Hosptial for Special Surgery, New York, NY, ³Weill Cornell Medical College, New York, NY, ⁴The Rockefeller University, New York, NY
Background/Purpose: We have previously shown that skin fibroblast activation is related to clinical severity and resolves with improvement in diffuse systemic sclerosis (dcSSc). The immune…
Abstract Number: 0934 • ACR Convergence 2023
Anti-fibrotic Effects of MT-5562, a Novel Potent Selective Autotaxin Inhibitor, in Preclinical Studies: Roles of Lysophosphatidic Acid in Autoimmune Diseases and Clues to Treat Skin and Lung Fibrosis in Systemic Sclerosis
Hiroshi Matsuura¹, Masahiro Kondo¹, Ryoko Ohno¹, Akina Ishii¹, Mariam Piruzyan¹, Kaori Funayama¹, Yuuichi Ono¹, Atsushi Iwamura¹, Tadashi Endo¹, Tomoya Akashi¹, Taizo Tomari², Noriko Uchiyama², Noriyasu Seki¹, Kenji Chiba¹, Gabriela Kania³, Przemyslaw Blyszczuk⁴, Oliver Distler⁵, Tsutomu Takeuchi⁶ and Yuko Kaneko⁷, ¹Mitsubishi Tanabe Pharma Corporation, Yokohama, Japan, ²Mitsubishi Tanabe Pharma Corporation, Fujisawa, Japan, ³University of Zurich, Zurich, Switzerland, ⁴Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ⁵Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ⁶Keio University School of Medicine and Saitama Medical University, Tokyo, Japan, ⁷Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
Background/Purpose: Targeted small-molecule therapies to autotaxin (ATX), the lysophosphatidic acid (LPA)-producing enzyme, have been shown to be potentially effective in systemic sclerosis (SSc), but the…
Abstract Number: 1664 • ACR Convergence 2023
Fibroblast Specific Interferon Regulatory Factor 7 (IRF7) Expression Is a Key Link Between Type I Interferon Activation and the Exaggerated Dermal and Pulmonary Fibrosis in Systemic Sclerosis
Minghua Wu¹, Jerry Alonso², Julio charles², Brian Skaug², Tingting Mills³, Maureen Mayes² and Shervin Assassi⁴, ¹Department of Internal Medicine, Division of Rheumatology, The University of Texas Health Science Center at Houston, Houston, TX, ²Division of Rheumatology, University of Texas McGovern Medical School, Houston, TX, ³Biochemistry Department, University of Texas McGovern Medical School, Houston, TX, ⁴University of Texas McGovern Medical School at Houston, Houston, TX
Background/Purpose: A prominent interferon (IFN) activation signature has been observed at the peripheral blood and end-organ levels in systemic sclerosis (SSc). However, the mechanisms by…
Abstract Number: 0936 • ACR Convergence 2023
Impaired DNA Repair Responses Activate a Novel FOXO1-dependent Metabolic Remodelling in Patients with Progressive Systemic Sclerosis to Promote Fibrosis
Lamia Khan, Desiree Redmond, Muhammad Elezzabi, Robert Gniadecki, Jan Willem Cohen Tervaert and Mohamed Osman, University of Alberta, Edmonton, AB, Canada
Background/Purpose: Systemic sclerosis (SSc) is a deadly disease characterized by immune dysregulation, vasculopathy, and fibrosis. SSc is the most lethal rheumatic disease associated with the…
Abstract Number: 2367 • ACR Convergence 2023
Characterization of the SFRP4+ PRG4+ Fibroblast Subpopulation in the Dermis of Healthy Skin and Its Relationship to SFRP4+ PRG4- Myofibroblasts in the Skin of Patients with Systemic Sclerosis
Banafsheh Nazari¹, Tracy Tabib² and Robert Lafyatis², ¹University of Pittsburgh, Atlanta, GA, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Systemic sclerosis (SSc) is a debilitating autoimmune disease characterized by extensive fibrosis affecting multiple organs. The fibrosis arises from the excessive production of collagen…

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