Abstracts tagged "Fibroblasts"

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: 2560 • 2013 ACR/ARHP Annual Meeting
Analysis Of Global Gene Expression Of Pulmonary Endothelial Cells From Caveolin-1 Knock-Out Mice
Sonsoles Piera-Velazquez¹, Zhaodong Li¹, Sankar Addya², Peter J. Wermuth¹ and Sergio A. Jimenez¹, ¹Jefferson Institute of Molecular Medicine, Division of Connective Tissue Diseases and Scleroderma Center,Thomas Jefferson University, Philadelphia, PA, ²Department of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA
Background/Purpose: Caveolin-1 (Cav-1) deficiency has recently been shown to participate in the pathogenesis of tissue fibrosis in Systemic Sclerosis (SSc). Although the mechanisms involved have…
Abstract Number: 2568 • 2013 ACR/ARHP Annual Meeting
Involvement Of Collagen-Binding Heat Shock Protein 47 In The Scleroderma-Associated Fibrosis
Haiyan Chu¹, Ting Wu¹, Wenyu Wu², Wenzhen Tu³, Yanyun Ma¹, Qingmei Liu¹, Hejian Zou⁴, Li Jin¹ and Jiu-Cun Wang¹, ¹Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China, ²Division of Dermatology, Division of Dermatology, Huashan Hospital, Fudan University, Shanghai, Shanghai, China, ³Medicine, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shang hai, China, ⁴Rheumatology, Huashan Hospital, Shanghai, China
Background/Purpose: Scleroderma or systemic sclerosis (SSc) is characterized by the fibrosis of skin and visceral organs, especially the uncontrolled fibrosis of multiple organs. Collagen is…
Abstract Number: 2418 • 2013 ACR/ARHP Annual Meeting
The Transmembrane Protein Tyrosine Phosphatase Kappa Promotes Aggressiveness Of Rheumatoid Arthritis Fibroblast-Like Synoviocytes
Stephanie M. Stanford¹, William B. Kiosses², Amanda M. Campbell³, Michael F. Maestre³, David L. Boyle⁴, Gary S. Firestein⁴ and Nunzio Bottini³, ¹Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ²The Scripps Research Institute, La Jolla, CA, ³La Jolla Institute for Allergy and Immunology, La Jolla, CA, ⁴Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA
Background/Purpose: Fibroblast-like synoviocytes (FLS) in the synovial intimal lining are key mediators of inflammation and joint destruction in rheumatoid arthritis (RA). In RA these cells…
Abstract Number: 2231 • 2013 ACR/ARHP Annual Meeting
The Actin-Crosslinking Protein Lasp-1 Regulates Synovial Fibroblast Migration and Cartilage Destruction In Arthritis
Denise Beckmann¹, Jan Hillen², Marianne Heitzmann², Catherine S. Chew³, Stefan Butz⁴, Dietmar Vestweber⁵, Hermann Pavenstädt⁶, Thomas Pap⁷ and Adelheid Korb-Pap², ¹1nstitute of Experimental Musculoskeletal Medicine, University Hospital Muenster, Muenster, Germany, ²Institute of Experimental Muskuloskeletal Medicine, University Hospital Muenster, Muenster, Germany, ³Institute of Molecular Medicine and Genetics, Medical College of Georgia, Augusta, GA, ⁴Max Planck Institute of Molecular Biomedicine, Max Planck Institute of Molecular Biomedicine, Muenster, Germany, ⁵Max Planck Institute of Molecular Biomedicine, Muenster, Germany, ⁶Internal Medicine D, Department of Nephrology and Rheumatology, University Hospital Muenster, Muenster, Germany, ⁷Institute of Experimental Muskuloskeletal Medicine, University Hospital Münster, Münster, Germany
Background/Purpose: Lasp-1 localizes at focal adhesions along stress fibres and leading edges of migrating cells and regulates the metastatic dissemination of tumors. Although rheumatoid arthritis…

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