Abstracts tagged "Fibroblasts"

Abstract Number: 863 • 2017 ACR/ARHP Annual Meeting
Functionally Distinct Pathogenic Subsets of Fibroblasts Exist within the Inflamed Synovial Membrane and Mediate Specific Aspects of Inflammatory Disease Pathology
Adam Paul Croft¹, Joana Campos², Loriane Savary², Emma Bishop², Jason Turner¹, Guillaume Desanti², Francesca Barone³, Andrew Filer³ and Chris Buckley², ¹Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom, ²University of Birmingham, Birmingham, United Kingdom, ³Institute of Inflammation and Ageing (IIA), University of Birmingham, Birmingham, United Kingdom
Background/Purpose: Fibroblasts are key effector cells in the persistence of synovial inflammation and joint damage. It is not yet known whether specific subsets of synovial…
Abstract Number: 2789 • 2017 ACR/ARHP Annual Meeting
Deficiency of the Novel Rheumatoid Arthritis (RA) Risk Gene, LBH, Induces Replication Stress in RA Fibroblast-like Synoviocytes (FLS) and Exacerbates Arthritis Severity
Shinji Matsuda¹, Deepa Hammaker², Katheryn Topolewski³, Karoline Briegel⁴, Steven Dowdy⁵, David L. Boyle⁶, Wei Wang⁷ and Gary S. Firestein⁸, ¹Medicine, UC San Diego, La Jolla, CA, ²Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, La Jolla, CA, ³UC San Diego, La Jolla, CA, ⁴University of Miami, Miami, FL, ⁵UC San Diego School of Medicine, La Jolla, CA, ⁶University of California San Diego, La Jolla, CA, ⁷Chemistry and Biochemistry, UC San Diego, La Jolla, CA, ⁸Medicine, University of California San Diego, La Jolla, CA
Background/Purpose: LBH (Limb-bud and heart development) was recently identified as an RA risk gene that has abnormally methylated loci and a functional enhancer SNP in…
Abstract Number: 960 • 2017 ACR/ARHP Annual Meeting
ADAM-17 Is Expressed on Rheumatoid Arthritis Synovial Fibroblasts and Mediates Monocyte Migration and Adhesion
Sho Ishii, Takeo Isozaki, Airi Nishimi, Shinichiro Nishimi, Takahiro Tokunaga, Hidekazu Furuya, Kuninobu Wakabayashi and Tsuyoshi Kasama, Div of Rheumatology, Showa University School of Med, Shinagawa-ku Tokyo, Japan
Background/Purpose: A disintegrin and metalloproteinase 17 (ADAM-17), also known as tumor necrosis factor-α converting enzyme (TACE), have been reported to be involved in a number…
Abstract Number: 2790 • 2017 ACR/ARHP Annual Meeting
Regulation of ASK1 Expression and Its Role in Rheumatoid Arthritis (RA)
Gyrid Nygaard¹, Deepa Hammaker², David L. Boyle³, Li Li⁴, Julie Di Paolo⁵ and Gary S. Firestein⁶, ¹Medicine, UC San Diego, La Jolla, CA, ²Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, La Jolla, CA, ³University of California San Diego, La Jolla, CA, ⁴Gilead Sciences, South San Francisco, CA, ⁵Immunology and Inflammation Biology, Gilead Sciences, Foster City, CA, ⁶Medicine, University of California San Diego, La Jolla, CA
Background/Purpose: Rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS) reside in the synovial intimal lining. They display a unique aggressive phenotype, invading the articular cartilage and promoting…
Abstract Number: 963 • 2017 ACR/ARHP Annual Meeting
Artesunate Inhabits Migration and Invasion of Fibroblast-like Synoviocytes and Matrix Metalloproteinases Expression Via Suppression of PI3K/Akt Pathway in Rheumatoid Arthritis
Jian-Da Ma¹, Jun Jing¹, Tao Yan², Ying-Qian Mo¹ and Lie Dai¹, ¹Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China, ²Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
Background/Purpose: Fibroblast-like synoviocytes (FLS) play major roles on joint destruction in rheumatoid arthritis (RA) through migrating and invasing cartilage and bone by secreting proteases such…
Abstract Number: 2829 • 2017 ACR/ARHP Annual Meeting
Complete Epigenetic Landscape of Rheumatoid Arthritis Fibroblast-like Synoviocytes Reveals Unanticipated Critical Pathogenic Pathways
Rizi Ai¹, Teresina Laragione², Deepa Hammaker³, David L. Boyle⁴, Andre ‎ Wildberg⁵, Keisuke Maeshima³, Emmanuele Palescandolo⁶, Vinod Krishna⁶, Bryan Linggi⁷, David Pocalyko⁸, John W. Whitaker⁹, Percio S. Gulko², Wei Wang¹⁰ and Gary S. Firestein¹¹, ¹UC San Diego, La Jolla, CA, ²Medicine/Rheumatology, Icahn School of Medicine at Mount Sinai, New York, NY, ³Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, La Jolla, CA, ⁴University of California San Diego, La Jolla, CA, ⁵Chemistry and Biochemistry, UNIVERSITY OF CALIFORNIA SAN DIEGO, LA JOLLA, CA, ⁶Janssen Pharmaceuticals, Spring House, PA, ⁷janssen Pharmaceuticals, Spring House, PA, ⁸Janssen Research, Spring House, PA, ⁹Janssen Pharmaceuticals, La Jolla, CA, ¹⁰Chemistry and Biochemistry, UC San Diego, La Jolla, CA, ¹¹Medicine, University of California San Diego, La Jolla, CA
Background/Purpose: Epigenetics participates in the pathogenesis of rheumatoid arthritis (RA). Epigenetic marks, gene expression and DNA polymorphisms have been investigated but the analyses are limited…
Abstract Number: 966 • 2017 ACR/ARHP Annual Meeting
In Search of Mechanisms Underlying Fibroblast-like Synoviocyte Cell-to-Cell Cargo Transfer
Ruth Byrne¹, Isabel Olmos Calvo², Felix Kartnig³, Uwe Hansen⁴, Denise Beckmann⁴, Adelheid Korb-Pap⁴, Bernhard Brandstätter¹, Thomas Karonitsch¹, Günter Steiner¹, Johannes Holinka⁵, Peter Ertl⁶, Thomas Pap⁴, Josef S. Smolen⁷ and Hans Peter Kiener¹, ¹Rheumatology, Medical University of Vienna, Vienna, Austria, ²Department of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria, ³CeMM, Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria, ⁴Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Germany, ⁵Orthopaedics, Medical University of Vienna, Vienna, Austria, ⁶Vienna University of Technology, Vienna, Austria, ⁷Medical University Vienna, Division of Rheumatology, Department of Internal Medicine III, Vienna, Austria
Background/Purpose: The synovium is primarily built by fibroblast-like-synoviocytes (FLS). These cells form a complex tissue network via long-distance connections (nanotubes) and wide intercellular matrix spaces.…
Abstract Number: 2928 • 2017 ACR/ARHP Annual Meeting
STAT3 As an Important Integrator of Profibrotic Pathways in Systemic Sclerosis
Debomita Chakraborty¹, Barbora Šumová², Tatjana Mallano³, Chih-Wei Chen³, Alfiya Distler³, Christina Bergmann³, Andreas Ramming⁴, Oliver Distler⁵, Georg Schett³, Ladislav Senolt⁶ and Jörg Distler³, ¹Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany, ²Institute of Rheumatology, Prague, Czech Republic, Prague, Czech Republic, ³Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany, ⁴Department of Internal Medicine 3 – Rheumatology and Immunology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany, ⁵Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ⁶Institute of Rheumatology and Department of Rheumatology, 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
Background/Purpose: Signal transducer and activator of transcription 3 (STAT3) is a transcription factor that regulates key cellular processes such as proliferation, apoptosis, invasion, angiogenesis, metastasis…
Abstract Number: 2157 • 2016 ACR/ARHP Annual Meeting
Share the Fate: Fibroblast-like Synoviocyte Cell-to-Cell Organelle Transfer Is Directed By the Inflammatory Microenvironment
Ruth Byrne¹, Isabel Olmos Calvo², Thomas Karonitsch³, Felix Kartnig⁴, Johannes Holinka⁵, Günter Steiner⁶, Peter Ertl⁷, Josef Smolen⁸ and Hans Peter Kiener⁹, ¹Rheumatology, Internal Medicine III, Medical University of Vienna, Vienna, Austria, ²Nanotechnology, Austrian Institute for Technology, Vienna, Austria, ³Internal Medicine III, Vienna Medical University, Vienna, Austria, ⁴Department of Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria, ⁵Department of Orthopaedics, Medical University of Vienna, Vienna, Austria, ⁶Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria, ⁷Vienna University of Technology, Vienna, Austria, ⁸Medical University of Vienna and Hietzing Hospital, Vienna, Austria, ⁹Division of Rheumatology, Medical University of Vienna, Vienna, Austria
Background/Purpose: Fibroblast-like synoviocytes (FLS) form a complex tissue network via long-distance intercellular connections with wide intercellular matrix spaces. The adaptive synovial tissue response to inflammation…
Abstract Number: 806 • 2016 ACR/ARHP Annual Meeting
Single Cell Rnaseq Defines a Unique Transcriptome Profile for Myofibroblasts in the Skin of Patients with Systemic Sclerosis
Robert A. Lafyatis¹, Lisa Rice², Giuseppina Stifano², Jeff Browning^2,3 and Robert W. Simms⁴, ¹Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, ²Boston University School of Medicine, Boston, MA, ³Boston university, Cambridge, MA, ⁴Rheumatology, Boston University School of Medicine, Boston, MA
Background/Purpose: Fibrosis in systemic sclerosis (SSc), as well as a wide variety of other fibrotic diseases, is largely driven by myofibroblasts. Myofibroblasts are known to…
Abstract Number: 2556 • 2016 ACR/ARHP Annual Meeting
Deficient Expression of the Novel Rheumatoid Arthritis (RA) Risk Gene, LBH, Induces S Phase Arrest in RA Fibroblast-like Synoviocytes (FLS)
Shinji Matsuda¹, Deepa Hammaker², Steven Dowdy³, David L. Boyle⁴ and Gary Firestein⁵, ¹Medicine, UC San Diego, La Jolla, CA, ²Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, La Jolla, CA, ³UC San Diego School of Medicine, La Jolla, CA, ⁴Division of Rheumatology, Allergy and Immunology, University of California, San Diego, La Jolla, CA, ⁵Medicine, UCSD, La Jolla, CA
Background/Purpose: LBH (Limb-bud and heart development) was recently identified as an RA risk gene that has abnormally methylated loci and a functional enhancer SNP in…
Abstract Number: 819 • 2016 ACR/ARHP Annual Meeting
Impaired Adiponectin Signaling in SSc Contributes to Myofibroblast Differentiation and Organ Fibrosis
Roberta Goncalves Marangoni¹, Benjamin Korman², Feng Fang¹, Monique Hinchcliff¹, Laszlo Otvos³, Philipp E. Scherer⁴, Warren Tourtellotte⁵ and John Varga⁶, ¹Northwestern University, Feinberg School of Medicine Scleroderma Program, Chicago, IL, ²Department of Rheumatology, Northwestern University, Feinberg School of Medicine Scleroderma Program, Chicago, IL, ³Temple University, Philadelphia, PA, ⁴University of Texas Southwestern Medical Center, Dallas, TX, ⁵Department of Pathology, Ward, Northwestern University, Chicago, IL, ⁶Rheumatology and Dermatology, Northwestern University, Feinberg School of Medicine Scleroderma Program, Chicago, IL
Background/Purpose: In systemic sclerosis (SSc) patients, skin fibrosis is accompanied by involution of dermal white adipose tissue (dWAT), a prominent source of adiponectin (APN). We…
Abstract Number: 2566 • 2016 ACR/ARHP Annual Meeting
Hexokinase 2 As a Novel Metabolic Target for Rheumatoid Arthritis
Marta Fernandez Bustamante¹, Ricard Garcia-Carbonell², Jeffrey Smith², Gary Firestein¹, Shigeki Miyamoto² and Monica Guma¹, ¹Medicine, UCSD, La Jolla, CA, ²Pharmacology, UCSD, La Jolla, CA
Background/Purpose: Hexokinases (HKs) catalyze the first step in glucose metabolism. HK2 constitutes the principal inducible isoform with a restricted distribution in normal adult tissues. Up-regulated…
Abstract Number: 1010 • 2016 ACR/ARHP Annual Meeting
Elucidating the Activation Profile of Systemic Sclerosis Macrophages
Michael S. Ball¹, Emilie P. Shipman¹, Mohamed A. Eltanbouly¹, Viktor Martyanov², Kimberly A. Archambault³, Mary A. Carns⁴, Esperanza Arroyo⁴, Kathleen Aren⁴, Monique Hinchcliff⁵, Michael L. Whitfield^2,3 and Patricia A. Pioli¹, ¹Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, NH, ²Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, ³Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, ⁴Department of Medicine, Division of Rheumatology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL, ⁵Northwestern University, Feinberg School of Medicine Scleroderma Program, Chicago, IL
Background/Purpose: Genome-wide gene expression studies implicate macrophages (MØs) as mediators of fibrosis in systemic sclerosis (SSc) and our data indicate that MØs constitute the dominant…
Abstract Number: 2926 • 2016 ACR/ARHP Annual Meeting
Rorc Positive Th17, Th17/Th1, and Th17.1 Cells from the Blood of Treatment NaïVe RA Patients Differ in IL-17A but Are All Pathogenic When Co-Cultured with RA Synovial Fibroblasts
Sandra M.J. Paulissen¹, Jan Piet van Hamburg², Nadine Davelaar², Wendy Dankers³, Patrick Asmawidjaja², Anne-Marie Otten-Mus² and Erik Lubberts², ¹Room Nb-84, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands, ²Rheumatology and Immunology, Erasmus MC, University Medical Center, Rotterdam, Netherlands, ³Rheumatology, Erasmus MC, University Medical Center, Rotterdam, Netherlands
Background/Purpose: T cells play a central role in the early stages of rheumatoid arthritis (RA). In this context, we have shown increased proportions of memory…

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