Abstracts tagged "Fibroblasts, Dermal"

Abstract Number: 1820 • ACR Convergence 2024
Disruption of Ca2+ Homeostasis and Enhanced Ca2+ Signaling in Scleroderma Fibroblasts Is Due to the Vicious Cycle Formed by Mitochondrial-derived Reactive Oxygen Species, CaMKII, and ER Extrusion Pump RYR2
Yuzo Ikari, William Brodie, Megan Mattichak, Sirapa Vichaikul, Qi Wu, Dinesh Khanna and Eliza Pei-Suen Tsou, University of Michigan, Ann Arbor, MI
Background/Purpose: Prior research has suggested that manipulating intracellular Ca2+ concentrations might yield anti-fibrotic benefits across various experimental models. Moreover, inhibiting downstream calcium-binding proteins, such as…
Abstract Number: 1821 • ACR Convergence 2024
Single-Cell RNA SequencingBioinformatic Pipeline Optimized for Non-Coding GenesIdentified LINC01503 and MIR193-BHG as Potential Pathogenic Effectors in Systemic Sclerosis Fibroblasts
Sophie Wagner¹, Elena Pachera², Gino Andrea Bonazza³, Celina Geiss⁴, Astrid Hofman⁴, Laura Much⁴, Lumeng Li⁴, Pietro Bearzi³, Anna-Maria Hoffmann-Vold⁵ and Oliver Distler⁶, ¹University of Zurich, Schlieren, Switzerland, ²University Hospital Zurich, Zurich, Switzerland, ³Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Schlieren, Switzerland, ⁴Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ⁵Oslo University Hospital, Oslo, Norway, ⁶Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, Zurich, Switzerland
Background/Purpose: Long non-coding RNAs (lncRNA) are a class of transcripts that regulate gene expression. Currently, only few lncRNAs have been linked to SSc pathogenesis. As…
Abstract Number: 1826 • ACR Convergence 2024
Unveiling the Primary Cilia Signature Driving Systemic Sclerosis Pathogenesis
Le My Tu Nguyen¹, Carlos Córdova-Fletes², Poulami Dey³, Johann Gudjonsson³, Rebecca Wells⁴, Rebecca Ross⁵, Natalia Riobo-Del Galdo⁴, Francesco Del Galdo⁴, Dibyendu Bhattacharyya³, John Varga³ and Maria Teves¹, ¹Virginia Commonwealth University, Richmond, VA, ²Universidad Autónoma de Nuevo León, Monterrey, Mexico, ³University of Michigan, Ann Arbor, MI, ⁴University of Leeds, Leeds, United Kingdom, ⁵Medicine and Health, University of Leeds, Leeds, United Kingdom
Background/Purpose: Fibrosis in multiple organs is the defining hallmark that accounts for the high mortality associated with systemic sclerosis (SSc). Understanding how SSc patients develop…
Abstract Number: 1827 • ACR Convergence 2024
Characterization of Fibroblast Subpopulations and Their Cellular Local Environments in Systemic Sclerosis Using Imaging Mass Cytometry
Aleix Rigau¹, Minrui Liang², Veda Devakumar², Ranjana Neelagar², Alexandru-Emil Matei², Andrea-Hermina Györfi², Christina Bergmann³, Tim Filla², Vladyslav Fedorchenko¹, Georg Schett⁴, Jörg Distler⁵ and Yi-Nan Li², ¹Friedrich-Alexander Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ²Universitätsklinikum Düsseldorf and Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany, ³Department Internal Medicine III, Friedrich-Alexander-University (FAU) Erlangen-Nurnber, Frankfurt, Germany, ⁴Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, ⁵Universitätsklinikum Düsseldorf and Heinrich-Heine-Universität Düsseldorf, Duesseldorf, Germany
Background/Purpose: Single-cell transcriptomic data has shown that fibroblasts exhibit heterogeneity, with subpopulations that have diverse functional characteristics. However, the conventional single-cell methods are unable to…
Abstract Number: 1830 • ACR Convergence 2024
Single-cell RNA Sequencing Profiling of Very Early-Stage Systemic Sclerosis Skin Reveals a Fibroblast Pro-inflammatory Gene Signature and Keratinocyte Dysregulation
Lumeng Li¹, Elena Pachera², Rucsandra Dobrota³, Kristina Bürki¹, Carina Mihai³, Muriel Elhai⁴, Laura Much¹, Astrid Hofman¹, Pietro Bearzi⁵, Sophie Wagner⁶, Sarah Lötscher⁷, Anna-Maria Hoffmann-Vold⁸ and Oliver Distler⁹, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ²University Hospital Zurich, Zurich, Switzerland, ³University Hospital Zurich, University of Zurich, Zurich, Switzerland, ⁴University Hospital zurich, Zürich, Switzerland, ⁵Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Schlieren, Switzerland, ⁶University of Zurich, Schlieren, Switzerland, ⁷Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Zurich, Switzerland, ⁸Oslo University Hospital, Oslo, Norway, ⁹Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, Zurich, Switzerland
Background/Purpose: The poor prognosis of patients with systemic sclerosis (SSc) underscores the need to prevent disease onset and irreversible organ damage. This study aims to…
Abstract Number: 1831 • ACR Convergence 2024
Role of Long Non-Coding RNA H19 in Mediating Skin Fibrosis in Systemic Sclerosis
Begoña Caballero-Ruiz¹, Christopher Wasson², Rebecca Ross³ and Francesco Del Galdo², ¹Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, United Kingdom, ²University of Leeds, Leeds, United Kingdom, ³Medicine and Health, University of Leeds, Leeds, United Kingdom
Background/Purpose: Systemic Sclerosis (SSc) is an immune driven condition leading to skin fibrosis, as well as internal organs. Dermal fibroblasts are the key cellular elements…
Abstract Number: 0089 • ACR Convergence 2024
Single-Cell RNA Sequencing Outlines the Mechanisms of Vgll3-Driven Myofibroblasts Differentiation in Promoting Fibrosis in Cutaneous Lupus
Mehrnaz Gharaee-Kermani, Allison Billi, Poulami Dey, Jacob Martens, Marisa Hildebrandt, J. Michelle Kahlenberg and Johann Gudjonsson, University of Michigan, Ann Arbor, MI
Background/Purpose: Skin fibrosis is characterized by collagen deposition, fibro/myofibroblast accumulation, and extracellular matrix remodeling. Some subtypes of cutaneous lupus erythematosus (CLE), particularly discoid lupus erythematosus…
Abstract Number: 1834 • ACR Convergence 2024
Altered Mechanotransduction via Myosin II Contributes to Collagen and IL-6 Production in Systemic Sclerosis Skin
Barbara Russo¹, Shutova Maria², Fanny Noulet², Geroge-Radu Romanescu³, Nicolo brembilla² and Wolf-Henning Boehncke², ¹Hopitaux Universitaire de Geneva, Geneva, Geneve, Switzerland, ²Hôpitaux Universitaires des Genève, Geneva, Geneve, Switzerland, ³University of Geneva, Geneva, Geneve, Switzerland
Background/Purpose: Scleroderma (SSc), an autoimmune disease, features progressive fibrosis, leading to significant morbidity and mortality. Current therapies manage symptoms but lack efficacy in directly targeting…
Abstract Number: 0942 • ACR Convergence 2023
G Protein-coupled Receptor Kinase 5 in Fibrotic Tissue Remodeling
Cuong Tran-Manh¹, Thuong Trinh-Minh¹, Christoph Liebel¹, Chih-Wei Chen² 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
Background/Purpose: G-protein coupled receptor kinase 5, GRK5, is a central regulator of G protein-coupled receptors (GPCRs), a vast family of cell surface receptors involved in…
Abstract Number: 0943 • ACR Convergence 2023
Attenuation of Fibroblast Activation and Fibrosis by Adropin in a Hedgehog-Dependent Manner
Minrui Liang and Joerg Distler, Clinic 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
Background/Purpose: Adropin is a secretory protein encoded by the energy homeostasis - associated (ENHO) gene. Emerging evidence indicate its role in metabolism and energy homeostasis,…
Abstract Number: 0945 • ACR Convergence 2023
The Nuclear Receptor TR4 Orchestrates Cytoskeletal Organization in a Gα12/ROCK-dependent Manner to Promote Myofibroblast Differentiation and Tissue Fibrosis in Systemic Sclerosis
Yun Zhang¹, Lichong Shen², yi-nan Li¹, Hermina Györfi¹ 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, ²Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany
Background/Purpose: Members of the superfamily of nuclear receptors have been implicated in inflammatory processes and pathologic tissue remodeling and have emerged as attractive targets for…
Abstract Number: 0946 • ACR Convergence 2023
Immunoglobulins G Purified from Systemic Sclerosis Patients Influence Cytoplasmic and Nuclear Proteins Profile in Dermal Fibroblasts
Aurélien Chepy¹, Marie Duhamel², Solange Vivier¹, Clément Chauvet¹, Lucile Guilbert³, Eric Hachulla⁴, Sylvain Dubucquoi¹, David Launay¹, Michel Salzet² and Vincent Sobanski¹, ¹Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France, ²Univ. Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, Lille, France, ³CHU Lille, Institut d’Immunologie, Lille, France, ⁴CHU Lille, Département de Médecine Interne et Immunologie Clinique, Centre de Référence des Maladies Auto-immunes Systémiques Rares du Nord et Nord-Ouest de France (CeRAINO), Lille, France
Background/Purpose: Autoantibodies (Aab) are frequent in systemic sclerosis (SSc). While recognized as potent biomarkers, their pathogenic role is unclear. Recently, we showed that immunoglobulins G…
Abstract Number: 0948 • ACR Convergence 2023
Nintedanib Alters Fibroblast and Macrophage Diversity in a 3D Skin Model of Systemic Sclerosis (SSc)
Noelle Kosarek¹, Tamar Abel², Sasha Shenk³, Tammara Wood², Jonathan Garlick⁴, Patricia Pioli⁵ and Michael Whitfield⁵, ¹Dartmouth Geisel School of Medicine, Lebanon, NH, ²Dartmouth College, Hanover, NH, ³Tufts University, Boston, MA, ⁴Tufts University School of Dental Medicine, Boston, MA, ⁵Geisel School of Medicine at Dartmouth, Hanover, NH
Background/Purpose: Systemic Sclerosis (SSc) is a rare autoimmune disease characterized by fibrosis of the skin and internal organs. While the tyrosine kinase inhibitor Nintedanib is…
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…

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