Abstracts tagged "Animal models"

Abstract Number: 2740 • 2013 ACR/ARHP Annual Meeting
High Efficacy Of Toll-Like Receptor 4 Targeting In Murine and Humanized Models Of Rheumatoid Arthritis In Comparison With IL-1 and TNF Inhibitors
Shahla Abdollahi-Roodsaz¹, Marije I. Koenders², Leo A. Joosten³, Fons A. van de Loo⁴ and Wim B. van den Berg¹, ¹Rheumatology Research and Advanced Therapeutics, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, ²Rheumatology Research and Advanced Therapeutics, Radboud University Nijmegen Medical Center, Nijmegen, Netherlands, ³Department of Medicine, Radboud University Nijmegen Medical Center, Nijmegen, Netherlands, ⁴Experimental Rheumatology, Radboud university medical center, Nijmegen, Netherlands
Background/Purpose: Increased expression of Toll-like Receptor (TLR) 4 and its endogenous agonists in rheumatoid joints suggest involvement in rheumatoid arthritis (RA). The aim of this…
Abstract Number: 1480 • 2013 ACR/ARHP Annual Meeting
Prevalance Of Rare Variants In Methotrexate Pathway Genes: Implications From The National Heart Lung Blood Institute (NHLBI) Exome Sequencing Project
Fardina Malik, Internal Medicine, Alton Memorial Hospital, Alton, IL
Background/Purpose: Inter-individual variation to methotrexate (MTX) therapy in patients with rheumatoid arthritis (RA) is attributed at least in part to the presence of genetic variation…
Abstract Number: 820 • 2013 ACR/ARHP Annual Meeting
CC-220: A Clinical Stage Immunomodulatory, Antifibrotic Drug For Systemic Sclerosis
Jörg HW Distler¹, Yongqing Wang², Pawel Zerr³, Katrin Palumbo⁴, Gerald Horan⁵, Peter Schafer⁵ and Bashar Kahaleh⁶, ¹Department of Internal Medicine, Institute for Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany, ²Medicine, University of Toledo, Toledo, OH, ³Department of Internal Medicine III and Institute for Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany, ⁴Department of Internal Medicine 3 and Institute for Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany, ⁵Department of Translational Development, Celgene Corporation, Summit, NJ, ⁶Medicine/Rheumatology, University of Toledo, Toledo, OH
Background/Purpose: Systemic Sclerosis (SSc) is an autoimmune fibrotic disease in which B cells may play a crucial role in pathogenesis. CC-220 is an immunomodulatory drug…
Abstract Number: 2300 • 2012 ACR/ARHP Annual Meeting
The Effects of Salvianolic Acid B in Fibrotic Models in Vivo and in Vitro
Qingmei Liu¹, Wenyu Wu², Wenzheng Tu³, Haiyan Chu¹, Yanyun Ma¹, Hejian Zou⁴, Xiaodong Zhou⁵ and Jiu-Cun Wang¹, ¹Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China, ²Huashan Hospital, Shanghai, China, ³Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai, China, ⁴Rheumatology, Huashan Hospital, Shanghai, China, ⁵Rheumatology, University of Texas Health Science Center at Houston, Houston, TX
Background/Purpose: , Methods: , Results: and Conclusion: Background: Scleroderma or systemic sclerosis (SSc) is characterized by the fibrosis of skin and visceral organs. Salvianolic acid…
Abstract Number: 1603 • 2012 ACR/ARHP Annual Meeting
Inhibitor of DNA Binding 1 As a Secreted Angiogenic Transcription Factor in Rheumatoid Arthritis
Takeo Isozaki¹, M. Asif Amin², Alisa E. Koch³, Ali Arbab⁴, Stephanie A. Shuman¹, Christine M. Ha¹, G. Kenneth Haines III⁵ and Jeffrey H. Ruth⁶, ¹Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, ²Department of Medicine, University of Michigan, Ann Arbor, MI, ³Internal Medicine - Rheumatology, University of Michigan Medical School, Ann Arbor, MI, ⁴Diagnostic Radiology, Henry Ford Hospital and Medical Centers, Detroit, MI, ⁵Department of Pathology, Yale University, New Haven, CT, ⁶Internal Medicine, Division of Rheumatology, University of Michigan Medical Center, Ann Arbor, MI
Background/Purpose: Rheumatoid arthritis (RA) is characterized by enhanced blood vessel development in joint synovium. This involves the recruitment of endothelial progenitor cells (EPCs), allowing for…
Abstract Number: 787 • 2012 ACR/ARHP Annual Meeting
Aberrant Adipogenesis in the Pathogenesis of Scleroderma
Roberta Goncalves Marangoni¹, Jun Wei², Monique E. Hinchcliff¹, Feng Fang³, Warren Tourtellotte⁴ and John Varga⁵, ¹Division of Rheumatology, Northwestern University Medical School, Chicago, IL, ²Rheumatology Division, Northwestern University, Chicago, IL, ³Rheumatology Division, Northwestern University Medical School, Chicago, IL, ⁴Pathology, Northwestern University Medical School, Chicago, IL, ⁵Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: Skin fibrosis in systemic sclerosis (SSc) is associated with loss of subcutaneous adipose tissue (SCAT) and reduction in adiponectin. The mechanism underlying SCAT atrophy…
Abstract Number: 329 • 2012 ACR/ARHP Annual Meeting
The SYK Inhibitor, Fostamatinib, Administered Alone or in Combination with Methotrexate in Rat Collagen-Induced Arthritis, Reduces Bone Erosions, Biomarkers of Cartilage/Bone Destruction, and Synovial Osteoclastogenic Cytokines
Polly Pine¹, Ayodele Apatira¹, Betty Y. Chang¹, Nathan Schoettler², Elliott B. Grossbard³ and Ernest Brahn², ¹Pharmacology, Rigel Pharmaceuticals, So San Francisco, CA, ²Rheumatology, UCLA School of Medicine, Los Angeles, CA, ³Rigel Pharmaceuticals, So San Francisco, CA
Background/Purpose: Spleen tyrosine kinase (SYK) is expressed in hematopoietic cells and is a major downstream regulator of signaling through Fcγ and immunoglobulin receptors as well…
Abstract Number: 2082 • 2012 ACR/ARHP Annual Meeting
Peripheral and Local Effects of Anti-C5aR Treatment in the Collagen Induced Arthritis Model
Christina Andersson¹, Carola Wenander¹, Pernille Usher², Josephine Hebsgaard² and Lars Hornum³, ¹AID Models, Immunopharmacology, Biopharmaceutical Research Unit, Novo Nordisk A/S, Måløv, Denmark, ²Histology, Biopharmaceutical Research Unit, Novo Nordisk A/S, Måløv, Denmark, ³Immunopharmacology, Biopharmaceutical Research Unit, Novo Nordisk A/S, Måløv, Denmark
Background/Purpose: The activated C5a-fragment of complement factor C5 is a potent pro-inflammatory effector molecule that chemo-attracts and activates myeloid cells such as neutrophils, monocytes, and…
Abstract Number: 1518 • 2012 ACR/ARHP Annual Meeting
Damage-Associated Endogenous TLR4 Ligand Fibronectin-EDA Is Overexpressed in Scleroderma and Drives Persistent Fibrosis Via TLR4 and Inhibition of TLR4 Prevents and Reverses Experimental Dermal Fibrosis: Novel Target for Scleroderma Therapy
Swati Bhattacharyya¹, Zenshiro Tamaki², Wenxia Wang³, Paul Hoover⁴, Adam Booth⁵, Alyssa Dreffs⁶, Monique E. Hinchcliff⁷, Feng Fang⁸, Spiro Getsios⁴, Hang Yin⁹, Eric S. White⁶ and John Varga¹⁰, ¹Division of Rheumatology, Northwestern University, Feinberg School of Medicine, Chicago, IL, ²Medicine, Rheumatology, Northwestern Univ Med School, Chicago, IL, Chicago, IL, ³Medicine/Rheumatology, Northwestern University, Feinberg School of Medicine, Chicago, IL, ⁴Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL, ⁵Ann Arbor, MI, ⁶Pulmonary and Critical Care Medicine, University of Michigan Medical School, Ann Arbor, MI, ⁷Division of Rheumatology, Northwestern Univ Med School, Chicago, IL, ⁸Rheumatology Division, Northwestern University, Chicago, IL, ⁹University of Colorado at Boulder, Boulder, CO, ¹⁰Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: Recent studies implicate innate immune signaling and Toll like receptor-4 (TLR4) in fibrogenesis. We hypothesized that injury in scleroderma leads to tissue accumulation of…
Abstract Number: 757 • 2012 ACR/ARHP Annual Meeting
Beneficial Role of Rapamycin in Experimental Autoimmune Myositis
Nicolas Prevel¹, Yves Allenbach², David Klatzman¹, Benoit Salomon¹ and Olivier Benveniste³, ¹UPMC Université Paris 06, UMR 7211, Paris, France, ²Internal Medicine Dpt 1, Pitié-Salpêtrière Hospital, APHP, Paris, France, ³Internal Medecine Dpt 1, Pitié-Salpêtrière Hospital, APHP, Paris, France
Background/Purpose: Idiopathic inflammatory myopathies are a heterogeneous group of different diseases, classified into four main categories: dermatomyositis, polymyositis, immune-mediated necrotizing myopathy, and sporadic inclusion body…
Abstract Number: 32 • 2012 ACR/ARHP Annual Meeting
Development of a Quantitative Model of Endotoxin-Induced Calvarial Bone Erosion Utilizing Micro-Computed Tomography and Pax-It Imaging Analysis Software
Diane Thome, Donald Souza, Aruna Behera, Jie Zheng, Jennifer Swantek and Gerald H. Nabozny, Immunology and Inflammation, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT
Background/Purpose: To facilitate an understanding of the biological factors involved in inflammation- mediated bone loss, in vitro systems and murine models of bone loss, such…
Abstract Number: 2084 • 2012 ACR/ARHP Annual Meeting
ASP015K: A Novel JAK Inhibitor Demonstrated Potent Efficacy in Adjuvant-Induced Arthritis Model in Rats
Shunji Yamazaki¹, Masamichi Inami¹, Misato Ito¹, Yasutomo Fujii¹, Kaori Hanaoka¹, Kaoru Yamagami¹, Kenji Okuma¹, Yoshiaki Morita¹, Shohei Shirakami², Takayuki Inoue², Susumu Miyata³ and Yasuyuki Higashi¹, ¹Pharmacology Research Labs, Astellas Pharma Inc., Tsukuba, Japan, ²Chemistry Research Labs, Astellas Pharma Inc., Tsukuba, Japan, ³Research Planning & Administration, Astellas Pharma Inc., Tsukuba, Japan
Background/Purpose: The Janus kinase (JAK) family of enzymes plays a key role in cytokine signaling, which is involved in the pathogenic events of immune-mediated disorders…
Abstract Number: 1507 • 2012 ACR/ARHP Annual Meeting
Propylthiouracil Reduces Fibrosis in Chronic Oxidant Stress Mouse Model of Scleroderma
Gianluca Bagnato¹, Alessandra Bitto², Natasha Irrera², Gabriele Pizzino², Neal Roberts³, Maurizio Cinquegrani⁴, Donatella Sangari¹, Francesco Squadrito², Gianfilippo Bagnato¹ and Antonino Saitta⁴, ¹Rheumatology, University of Messina, Messina, Italy, ²Pharmacology, University of Messina, Messina, Italy, ³Medical College of Virginia, Richmond, VA, ⁴Internal Medicine, University of Messina, Messina, Italy
Background/Purpose: Systemic sclerosis (SSc) is characterized by fibrosis of skin and visceral organs; vascular damage and resultant ischemia; and immunological dysregulation manifested by autoantibodies. Hypothyroidism,…
Abstract Number: 734 • 2012 ACR/ARHP Annual Meeting
Chemokine (C-C Motif) Receptor 2 Signaling Mediates Persistent Pain in Experimental Osteoarthritis
Rachel E. Miller¹, Phuong Tran², Rosalina Das², Nayereh Ghoreishi-Haack², Richard J. Miller³ and Anne-Marie Malfait⁴, ¹Rheumatology/Biochemistry, Rush University Medical Center, Chicago, IL, ²Rheumatology, Rush University Medical Center, Chicago, IL, ³Molecular Biochemistry and Pharmacology, Northwestern University, Chicago, IL, ⁴Internal Medicine/Biochemistry, Rush University Medical Center, Chicago, IL
Background/Purpose: To investigate the role of MCP-1/CCR2 in the development of pain in osteoarthritis (OA) using a mouse model, destabilization of the medial meniscus (DMM).…
Abstract Number: 35 • 2012 ACR/ARHP Annual Meeting
Changes in Tibial Bone and Cartilage Structure in a Mouse Surgical Model of Osteoarthritis
Brett A. Tonkin¹, Evange Romas², Natalie A. Sims¹ and Nicole C. Walsh¹, ¹St Vincent's Institute of Medical Research, Melbourne, Australia, ²Dept. of Rheumatology, St Vincent's Hospital, Melbourne, Australia
Background/Purpose: The destabilisation of the medial meniscus (DMM) mouse osteoarthritis (OA) model is commonly used to study OA joint degeneration. In DMM-OA, the knee is…

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