Abstracts tagged "Fibroblasts"

Abstract Number: 1417 • 2017 ACR/ARHP Annual Meeting
Mitophagy Defect in Fibroblast-like Synoviocytes of Rheumatoid Arthritis Is Improved By Pyruvate Treatment
Jeong Yeon Kim^1,2, ShinEui Kang^3,4, Hyun Jung Yoo^1,5, Ji Soo Park^1,2, Sehui Shon^1,2, Eun Young Lee², Eun Bong Lee⁵ and Yeong Wook Song^1,6, ¹Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea., Seoul, Korea, Republic of (South), ²Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea., Seoul, Korea, Republic of (South), ³Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea., seoul, Korea, Republic of (South), ⁴Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea., seoul, Korea, Republic of (South), ⁵Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea, Republic of (South), ⁶Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine, Seoul National University, Seoul, Korea, Republic of (South)
Background/Purpose: Fibroblast-like synoviocytes (FLS) in the synovial intimal lining produce pro-inflammatory cytokines resulting in increase of joint inflammation. Recent studies about the cellular metabolism in…
Abstract Number: 171 • 2017 ACR/ARHP Annual Meeting
Finding Transcriptional Regulators Central to RA with Transcriptomics of IL17 Dose Response, Time Series, and siRNA Silencing in Stromal Cells
Kamil Slowikowski¹, Hung Nguyen², Gerald Watts², Fumitaka Mizoguchi³, Erika H. Noss⁴, Michael Brenner⁵ and Soumya Raychaudhuri⁶, ¹Harvard University, Boston, MA, ²Brigham and Women's Hospital, Boston, MA, ³Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan, ⁴Division of Rheumatology, University of Washington, Seattle, WA, ⁵Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁶Division of Medicine and Rheumatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
Background/Purpose: Rheumatoid arthritis (RA) is characterized by immune cell infiltration into the synovial membrane of the joint, where they engage stromal cells such as synovial…
Abstract Number: 1714 • 2017 ACR/ARHP Annual Meeting
Inhibition of Hedgehog Acyltransferase Alleviates the Profibrotic Effects of Transforming Growth Factor β in Systemic Sclerosis
Ruifang Liang¹, Rosebeth Kagwiria², Clara Dees³, Yun Zhang⁴, Oliver Distler⁵, Georg Schett⁶ and Jörg Distler⁷, ¹Department of Internal Medicine 3 – Rheumatology and Immunology, Universitätsklinikum Erlangen, Department of Internal Medicine 3 and Institute for Clinical Immunology, Friedrich-Alexander-University of Erlangen-Nuremberg and University Hospital Erlangen, Erlangen, Germany, ²Department of Internal Medicine 3 and Institute for Clinical Immunology, Friedrich-Alexander-University of Erlangen-Nuremberg and University Hospital Erlangen, Erlangen, Germany, ³Department of Internal Medicine 3 and Institute for Clinical Immunology,, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany, ⁴Department of Internal Medicine 3 and Institute for Clinical Immunology, Department of Internal Medicine 3 and Institute for Clinical Immunology, Friedrich-Alexander-University of Erlangen-Nuremberg and University Hospital Erlangen, Erlangen, Germany, ⁵Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ⁶Department of Internal Medicine 3 – Rheumatology and Immunology, Department of Internal Medicine 3 and Institute for Clinical Immunology, Friedrich-Alexander-University of Erlangen-Nuremberg and University Hospital Erlangen, Erlangen, Germany, ⁷Department of Internal Medicine 3 – Rheumatology and Immunology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
Background/Purpose: Hedgehog acyltransferase (Hhat) catalyzes the attachment of the fatty acid palmitate onto Sonic Hedgehog (Shh), a modification essential for Shh signaling activity. Palmitoylation of…
Abstract Number: 642 • 2017 ACR/ARHP Annual Meeting
Downstream Effects of Apremilast in Human Arthritic Ex Vivo Models
Tue Wenzel Kragstrup^1,2, Søren Lomholt², Morten Aagaard Nielsen², Line Dam Heftdal², Peter H. Schafer³ and Bent Deleuran^2,4, ¹Randers Regional Hospital, Randers, Denmark, ²Department of Biomedicine, Aarhus University, Aarhus, Denmark, ³Department of Translational Development, Celgene Corporation, Summit, NJ, ⁴Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark
Background/Purpose: Apremilast (Otezla) is a PDE4 inhibitor approved for the treatment of psoriasis and psoriatic arthritis, but the mechanisms of action of apremilast are not…
Abstract Number: 1717 • 2017 ACR/ARHP Annual Meeting
Skin Commensal Bacteria Might Affect Wound Repair in SSc By Preventing Fibroblast Activation and By Provoking Chronic Inflammatory Reaction
Masaya Yokota¹, Janine Schniering¹, Oliver Distler² and Britta Maurer³, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, Switzerland, Zurich, Switzerland, ²Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ³Department of Rheumatology, Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland
Background/Purpose: Chronic digital ulcers (DU) due to peripheral microangiopathy are a major complication in systemic sclerosis (SSc). Chronic wounds are often enriched in bacteria without…
Abstract Number: 763 • 2017 ACR/ARHP Annual Meeting
Mechanisms of Insulin-like Growth Factor-II-Mediated Fibrosis
Sara Garrett¹, Justin Thomas², Eileen Hsu³ and Carol A. Feghali-Bostwick⁴, ¹Medicine/Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, ²Eisenhower Medical Center, Rancho Mirage, CA, ³Kaiser Permanente Medical Group, Mclean, VT, ⁴Division of Rheumatology and Immunology, Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, SC, United States, Charleston, SC
Background/Purpose: Previous work has shown that insulin-like growth factor (IGF)-II is increased in fibrosing lung diseases, including idiopathic pulmonary fibrosis (IPF) and scleroderma/systemic sclerosis (SSc)-associated…
Abstract Number: 1721 • 2017 ACR/ARHP Annual Meeting
Long Noncoding RNA H19X Is a Key Regulator of Apoptosis and Proliferation of Fibroblasts in Systemic Sclerosis and Other TGFβ-Driven Fibrotic Diseases
Elena Pachera¹, Adam Wunderlin¹, Shervin Assassi², Gloria Salazar², Mojca Frank Bertoncelj¹, Rucsandra Dobrota¹, Matthias Brock³, Carol A. Feghali-Bostwick⁴, Gerard Dijkstra⁵, Gerhard Rogler⁶, Tobias van Haaften Wouter⁶, Jörg Distler⁷, Gabriela Kania¹ and Oliver Distler¹, ¹Department of Rheumatology, Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ²Rheumatology, University of Texas Health Science Center at Houston, Houston, TX, ³Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland, ⁴Division of Rheumatology and Immunology, Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, SC, United States, Charleston, SC, ⁵Department of Gastroenterology and Hepatology, University Medical Center Groningen, Groningen, Switzerland, ⁶Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland, ⁷Internal Medicine 3, University of Erlangen, Erlangen, Germany
Background/Purpose: Long noncoding RNAs (lncRNAs) are a class of transcripts regulating gene expression. We have recently identified a novel lncRNA, H19X, which was upregulated in…
Abstract Number: 769 • 2017 ACR/ARHP Annual Meeting
Proteomic Analysis of Human Fibroblasts in Systemic Sclerosis Reinforces the Role of Transforming Growth Factor-ß and Points Toward Epidermal Growth Factor Receptor / Phosphatidylinositol 3 Kinase Pathway Inhibition
Benjamin Chaigne¹, Guilhem Clary², Morgane Le Gall³, Nicolas Dumoitier⁴, Sebastien Lofek⁵, Philippe Chafey², Pia Moinzadeh⁶, Thomas Krieg⁷, Christopher Denton⁸ and Luc Mouthon⁹, ¹Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d’Ile de France, hôpital Cochin, DHU Authors, Assistance Publique-Hôpitaux de Paris, Paris, France, ²INSERM U1016, Institut Cochin,, Paris, France, ³INSERM U1016 Institut Cochin, Paris, France, ⁴INSERM U1016, Institut Cochin, Equipe Neutrophiles et Vascularites, Paris, France, ⁵INSERM U1016, paris, France, ⁶Department of Rheumatology, UCL Division of Medicine, London, United Kingdom, ⁷Universität zu Köln, Köln, Germany, ⁸Department of Rheumatology, University College London, Royal Free Hospital, London, United Kingdom, ⁹Service de Médecine Interne, Hôpital Cochin, Centre de référence national pour les maladies systémiques autoimmunes rares d’Ile de France, DHU Authors, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France ;Université Paris Descartes Sorbonne Paris, Paris, France
Background/Purpose: Systemic sclerosis (SSc) is a rare autoimmune connective tissue disorder characterized by autoimmunity, vasculopathy and fibrosis. Fibrosis is due to an exaggerated activation of…
Abstract Number: 1927 • 2017 ACR/ARHP Annual Meeting
Anti-Fibrotic Mechanisms of Endostatin-Derived Peptide Are the Result of Reduction in Pro-Fibrotic Mediators and Promotion of Extracellular Matrix Degradation
Tomoya Watanabe¹, Tetsuya Nishimoto², Takahisa Takihara³, Logan Mlakar⁴, Yunyun Su⁵ and Carol A. Feghali-Bostwick⁶, ¹Rheumatology, Medical University of South Carolina, Charleston, SC, ²Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, SC, ³Division of Pulmonary Medicine, Tokai University School of Medicine, Isehara, Japan, ⁴Medical University of South Carolina, Charleston, SC, ⁵Medicine, Division of Rheumatology and Immunology, Medical University of South Carolina, charleston, SC, ⁶Division of Rheumatology and Immunology, Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, SC, United States, Charleston, SC
Background/Purpose: Fibrotic disorders such as systemic sclerosis (SSc) result in end-stage organ failure and loss of function, consequently causing high morbidity and mortality. We recently…
Abstract Number: 774 • 2017 ACR/ARHP Annual Meeting
The αV Integrin Inhibitor Abituzumab Inhibits Myofibroblast Differentiation
Eileen Samy¹, Yin Wu¹, Georgianna Higginbotham², Roland Grenningloh² and Daigen Xu², ¹TIP Immunology, EMD Serono Research & Development Institute, Inc. (a business of Merck KGaA, Darmstadt, Germany), Billerica, MA, ²EMD Serono Research & Development Institute, Inc. (a business of Merck KGaA, Darmstadt, Germany), Billerica, MA
Background/Purpose: Scleroderma is a progressive fibrotic multi-organ disease characterized by the hardening and tightening of the skin and connective tissues. TGF-β1 is a potent mediator…
Abstract Number: 1928 • 2017 ACR/ARHP Annual Meeting
Fibroblast-like Synovial Cell Production of ED-a Fibronectin Contributes to Inflammation in Osteoarthritis
Tue Wenzel Kragstrup^1,2,3, Dong Hyun Sohn⁴, Christin Lepus³, Kazuhiro Onuma⁵, Qian Wang³, William H. Robinson³ and Jeremy Sokolove³, ¹Randers Regional Hospital, Randers, Denmark, ²Department of Biomedicine, Aarhus University, Aarhus, Denmark, ³VA Palo Alto Healthcare System and Stanford University, Palo Alto, CA, ⁴Microbiology and Immunology, Pusan National University School of Medicine, Yangsan, Korea, Republic of (South), ⁵VA Palo Alto Healthcare System and Stanford University, Stanford, CA
Background/Purpose: The pathophysiology of osteoarthritis (OA) involves wear and tear, and a state of low-grade inflammation. Wear and tear leads to tissue degradation followed by…
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…

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