Abstracts tagged "Fibroblasts"

Abstract Number: 771 • 2014 ACR/ARHP Annual Meeting
Development of a Bifluorescent Lineage Tracker Reporter Mouse Strain to Analyze the Phenotypic Conversion of Endothelial Cells into Myofibroblasts in Vivo. Application to Study the Synergistic Effects of Endothelin-1 on TGF-β1-Induced Endothelial-to-Mesenchymal Transition
Peter J. Wermuth and Sergio A. Jimenez, Jefferson Institute of Molecular Medicine, Division of Connective Tissue Diseases and Scleroderma Center,Thomas Jefferson University, Philadelphia, PA
Background/Purpose: Endothelial-to-mesenchymal transition (EndoMT) may be a crucial pathway in generating activated myofibroblasts, cells that play a pivotal role in the development of tissue and…
Abstract Number: 1962 • 2014 ACR/ARHP Annual Meeting
Inflammatory Properties of Inhibitor of DNA Binding 1 As a Unique Fibroblast Derived Nuclear Protein
Gautam Edhayan¹, Christine M. Ha¹, Ray A. Ohara¹, Takeo Isozaki¹, M. Asif Amin¹, Ali Arbab², Pei-Suen Tsou³, Phillip L. Campbell⁴, Elena Schiopu³, Dinesh Khanna³, Rachel Morgan¹, Sean C. Friday¹, David A. Fox¹ and Jeffrey Ruth¹, ¹Internal Medicine, Division of Rheumatology, University of Michigan Medical Center, Ann Arbor, MI, ²Georgia Regents University, Augusta, GA, ³University of Michigan Scleroderma Program, Ann Arbor, MI, ⁴Division of Rheumatology, University of Michigan Medical Center, Ann Arbor, MI
Background/Purpose: Inhibitor of DNA binding 1 (Id1) is a nuclear protein containing a basic helix-loop-helix (bHLH) domain that regulates cell growth by selective binding and…
Abstract Number: 769 • 2014 ACR/ARHP Annual Meeting
Anti-Fibrotic Effects of an Investigational Drug: Bis-Oxetanyl Sulfoxide
Logan Mlakar¹, Takahisa Takihara², Melissa Sprachman³, Peter Wipf⁴ and Carol Feghali-Bostwick¹, ¹Medical University of South Carolina, Charleston, SC, ²Tokai University School of Medicine, Kanagawa, Japan, ³Massachusetts General Hospital, Boston, MA, ⁴Chemisry, University of Pittsburgh, Pittsburgh, PA
Background/Purpose: The hallmark of pulmonary fibrosis is thickening and scarring of the tissue caused by increased deposition of extracellular matrix (ECM) proteins like collagen…
Abstract Number: 1796 • 2014 ACR/ARHP Annual Meeting
Autotaxin Is Highly Expressed in Systemic Sclerosis (SSc) Skin, Mediates Dermal Fibrosis Via IL-6, and Is a Target for SSc Therapy
Flavia V. Castelino^1,2, Leaya M. George³, Gretchen Bain⁴, Lance Goulet⁵, Robert Lafyatis⁶ and Andrew M. Tager^3,7, ¹Rheumatology, Massachusetts General Hospital, Boston, MA, ²Harvard Medical School, Boston, MA, ³Pulmonary Unit, Massachusetts General Hospital, Boston, MA, ⁴Biology, PharmAkea Pharmaceuticals, San Diego, CA, ⁵PharmAkea Pharmaceuticals, San Diego, CA, ⁶Rheumatology, Boston University School of Medicine, Boston, MA, ⁷Massachusetts General Hospital, Boston, MA
Background/Purpose Autotaxin (ATX) is an enzyme present in biological fluids that is responsible for the production of the lipid mediator, lysophosphatidic acid (LPA). We previously…
Abstract Number: 749 • 2014 ACR/ARHP Annual Meeting
Progranulin Overproduction Due to Fli1 Deficiency Contributes to the Resistance of Dermal Fibroblasts to Tumor Necrosis Factor a in Systemic Sclerosis
Yohei Ichimura, Yoshihide Asano, Kaname Akamata, Shinji Noda, Takashi Taniguchi, Takehiro Takahashi, Tetsuo Toyama, Yayoi Tada, Makoto Sugaya, Shinichi Sato and Takafumi Kadono, Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
Background/Purpose: Systemic sclerosis (SSc) is a multisystem fibrotic connective tissue disease characterized by a dysregulated activation of fibroblasts following inflammation, autoimmune attacks, and vascular injuries.…
Abstract Number: 1739 • 2014 ACR/ARHP Annual Meeting
Immunomodulatory Properties of CD271+ and CD271- Synovial Mesenchymal Cells
Alicia Usategui¹, Manuel J. Del Rey¹, Regina Faré¹, Gabriel Criado², Vanessa Miranda¹, Juan D. Cañete³ and Jose L. Pablos¹, ¹Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (I+12), Madrid, Spain, ²Grupo de Enfermedades Inflamatorias y Autoinmunes, Instituto de Investigación Hospital 12 de Octubre (I+12), Madrid, Spain, ³Arthritis Unit. Rheumatology Department, Hospital Clínic of Barcelona, Barcelona, Spain
Background/Purpose Mesenchymal stem cells (MSC) have been isolated from synovium and represent a fraction of synovial fibroblast (SF) cultures. CD271+ is considered a MSC surface…
Abstract Number: 327 • 2014 ACR/ARHP Annual Meeting
AMPK Activation in Inflammatory Arthritis
Monica Guma¹, Yun Wang² and Ru Liu-Bryan², ¹Division of Rheumatology, Allergy and Immunology, University of California, San Diego, La Jolla, CA, ²UCSD/VAMC, La Jolla, CA
Background/Purpose: AMP-activated protein kinase (AMPK) is a serine/threonine protein kinase involved in the regulation of cellular energy homeostasis. It is a central regulator of both…
Abstract Number: 1728 • 2014 ACR/ARHP Annual Meeting
Bromodomain Inhibitor JQ1 Modulates Collagen Processing and Ameliorates Bleomycin Induced Dermal Fibrosis in Mice
Sarah Trinder¹, Mary Tarriela², Adrian Gilbane¹, Robert Good³, Xu Shi-Wen⁴, David Abraham⁵ and Alan M. Holmes⁶, ¹Rheumatology and Connective Tissue Diseases, UCL, London, United Kingdom, ²Centre for Rheumatology and Connective Tissue Diseases, London, United Kingdom, ³Rheumatology and Connective Tissue Diseases, UCL, LONDON, United Kingdom, ⁴Centre for Rheumatology and Connective Tissue Diseases, UCL, LONDON, United Kingdom, ⁵Rheumatology and Connective Tissue Diseases, UCL Medical School, London, United Kingdom, ⁶Centre for Rheumatology and Connective Tissue Diseases, UCL, London, United Kingdom
Background/Purpose: Systemic sclerosis (SSc) is a complex pro-inflammatory scarring disease, characterised by elevated deposition of extracellular matrix (ECM) proteins, in particular collagen type I. The…
Abstract Number: 324 • 2014 ACR/ARHP Annual Meeting
Regulation of TNF-α-Mediated Activation of Rheumatoid Synovial Fibroblasts By Transcription Factor Snail
Chrong-Reen Wang^1,2, Shih-Yao Chen³, Ai-Li Shiau⁴, I-Ming Jou^5,6, Ming-Fei Liu^1,2 and Chao-Liang Wu³, ¹Internal Medicine, National Cheng Kung University Medical College, Tainan, Taiwan, ²Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan, ³Biochemistry and Molecular Biology, National Cheng Kung University Medical College, Tainan, Taiwan, ⁴Microbiology and Immunology, National Cheng Kung University Medical College, Tainan, Taiwan, ⁵Orthopedics, National Cheng Kung University Medical College, Tainan, Taiwan, ⁶Orthopedics, National Cheng Kung University Hospital, Tainan, Taiwan
Background/Purpose: Transcription factor Snail plays active roles in various biological functions and is involved in many disease states. We hypothesized that this molecule regulates TNF-α-mediated…
Abstract Number: 1710 • 2014 ACR/ARHP Annual Meeting
Endothelin-1 Is a Downstream Mediator of Profibrotic Effects by Transforming Growth Factor-β1 in Systemic Sclerosis Skin Fibroblasts
Tomoaki Higuchi¹, Yasushi Kawaguchi¹, Akiko Tochimoto¹, Yuko Ota², Yasuhiro Katsumata¹, Takahisa Gono¹, Masanori Hanaoka¹, Yuko Okamoto¹, Hidenaga Kawasumi¹ and Hisashi Yamanaka³, ¹Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan, ²10-22 Kawada-Cha Shinjuku-Ku, Tokyo Women's Medical University, Tokyo, Japan, ³Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
Background/Purpose Systemic sclerosis (SSc) is an autoimmune connective tissue disorder characterized by excess collagen deposition, vascular changes and production of autoantibodies that affects multiple organs.…
Abstract Number: 1704 • 2014 ACR/ARHP Annual Meeting
CXCL4 Promotes Fibrosis By Increasing Expression of Extracellular Matrix Modifying Factors and By Facilitating Epithelial/Endothelial Mesenchymal Transition
W. Marut¹, A.J. Affandi¹, A. Limpers¹ and T.R.D.J. Radstake², ¹Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ²Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands
Background/Purpose Systemic sclerosis (SSc) is a degenerative disorder, characterized by vascular abnormalities and immunological disturbances followed by excessive fibrosis in multiple organ systems. In a…
Abstract Number: 1462 • 2014 ACR/ARHP Annual Meeting
Cadherin-11 mRNA Expression in the Peripheral Blood of Rheumatoid Arthritis Patients As a Marker of Active Polyarthritis
Petros P. Sfikakis¹, Panagiotis F. Christopoulos^1,2, Aristeidis G. Vaiopoulos^1,2, Kalliopi Fragkiadaki¹, Christina Katsiari³, Violetta Kapsimali⁴, George Lallas¹, Panayiotis Panayiotidis⁴, Pinelopi Korkopoulou⁵ and Michael Koutsilieris², ¹First Department of Propedeutic Internal Medicine, Laikon Hospital, Athens University Medical School, Athens, Greece, ²Department of Physiology, Athens University Medical School, Athens, Greece, ³Department of Rheumatology, School of Health Sciences, University of Thessaly, Larissa, Greece, ⁴Department of Microbiology, Athens University Medical School, Athens, Greece, ⁵Department of Pathology, Athens University Medical School, Athens, Greece
Background/Purpose: Human rheumatoid arthritis synovial fibroblasts (RASF) implanted subcutaneously in immunodeficient mice trans-migrate through the vasculature and drive the progression from oligo- to poly-articular disease.…
Abstract Number: 2919 • 2014 ACR/ARHP Annual Meeting
The Novel Rheumatoid Arthritis (RA) Risk Gene, LBH, Is Regulated By TGFß and PDGF and Modulates Cell Growth in Fibroblast-like Synoviocytes
Anna-Karin Ekwall¹, Deepa Hammaker², John W. Whitaker³, William Bugbee⁴, Wei Wang⁵ and Gary S. Firestein⁶, ¹Medicine, UC San Diego, La Jolla, CA, ²Medicine, University of California San Diego, La Jolla, CA, ³860 island ave, UCSD, San Diego, CA, ⁴Orthopaedics, Scripps Clinic, La Jolla, CA, ⁵Chemistry, UCSD, La Jolla, CA, ⁶Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA
Background/Purpose: RA fibroblast-like synoviocytes (FLS) display an aggressive phenotype, such as increased cytokine production and cell growth. Currently no therapeutics specifically target FLS. To this…
Abstract Number: 1027 • 2014 ACR/ARHP Annual Meeting
Hematopoietic Cell Kinase (HCK) As a Novel Regulator of Fibroblast-like Synoviocyte Function in RA
Ying Wang¹, Deepa Hammaker², David L. Boyle³, Toshio Yoshizawa⁴ and Gary S. Firestein³, ¹Medicine, UCSD, La Jolla, CA, ²Medicine, University of California San Diego, La Jolla, CA, ³Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA, ⁴Exploratory Research Laboratories 1, Ono Pharmaceutical Co., Ltd., Osaka, Japan
Background/Purpose: Fibroblast-like synoviocytes (FLS) are key mediators of inflammation and joint damage in rheumatoid arthritis (RA) through the production of cytokines and matrix metalloproteinases (MMPs)…
Abstract Number: 2816 • 2014 ACR/ARHP Annual Meeting
Distinctive DNA Methylome Signatures in Early Rheumatoid Arthritis (RA) Synoviocytes Compared with Longstanding (RA) and Other Inflammatory Arthritides
Rizi Ai¹, John W. Whitaker², David L. Boyle³, Paul Peter Tak⁴, Danielle M. Gerlag⁵, Wei Wang⁶ and Gary S. Firestein³, ¹Chemistry, UC San Diego, La Jolla, CA, ²860 island ave, UCSD, San Diego, CA, ³Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA, ⁴Academic Medical Center / University of Amsterdam, Department of Clinical Immunology and Rheumatology & GlaxoSmithKline, Amsterdam, Netherlands, ⁵Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ⁶Chemistry, UCSD, La Jolla, CA
Background/Purpose: Epigenetics influences pathogenic mechanisms in autoimmunity. Recently, a stable RA DNA methylation signature in fibroblast-like synoviocytes (FLS) was defined in 2375 genes. The…

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