Abstracts tagged "Chemokine Receptors"

Abstract Number: 1369 • 2015 ACR/ARHP Annual Meeting
Enhanced Myelopoiesis Downstream of Toll-like Receptor 9 Activation Drives a Feed-Forward Inflammatory Response
Lehn K. Weaver¹ and Edward M. Behrens², ¹Pediatric Rheumatology, Children's Hospital of Philadelphia, Philadelphia, PA, ²Pediatric Rheumatology, Childrens Hospital of Philadelphia, Philadelphia, PA
Background/Purpose: Monocytes are myeloid cells important for the initiation of inflammation and have been implicated in the pathogenesis of autoimmunity. Monocytes interact with their environment…
Abstract Number: 1931 • 2015 ACR/ARHP Annual Meeting
PLCe1 Mediates Cellular Adhesion Downstream of SDF-1 in T Cells
Adam Mor¹ and Marianne Strazza², ¹Rheumatology and Pathology, NYU Langone Medical Center, New York, NY, ²NYU, New York, NY
Background/Purpose: The presentation of chemokines by endothelial cells results in chemoattraction of leukocytes that express the correlative chemokine receptors. In this way, chemokines direct leukocyte…
Abstract Number: 2725 • 2014 ACR/ARHP Annual Meeting
Enhanced Expression of CCL25 to Facilitate Increased Numbers of CCR9-Expressing Tfh-like Cells in Salivary Glands of Primary Sjögren’s Syndrome Patients
S.L.M. Blokland^1,2, M.R. Hillen^1,2, A.a. Kruize², A. Kislat³, S. Meller³, B. Homey³, G.M. Smithson⁴, J. Zalevsky⁵, T.R.D.J. Radstake² and J.a.G. van Roon², ¹Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ²Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ³Department of Dermatology, University of Düsseldorf, Medical Faculty, Düsseldorf, Germany, ⁴Takeda Pharmaceuticals International, Chicago, IL, ⁵Takeda California, San Diego, CA
Background/Purpose In primary Sjögren’s syndrome (pSS) B cell activation and autoantibody secretion are hallmark immunopathological features. Specific lymphoid organization (including germinal centers) is associated with…
Abstract Number: 2692 • 2014 ACR/ARHP Annual Meeting
Up-Regulated Expression of CXCR4 on Circulating B Cells in Patients with Systemic Lupus Erythematosus
Hironari Hanaoka¹, Yuka Okazaki¹, Akinori Hashiguchi², Hidekata Yasuoka³, Tsutomu Takeuchi¹ and Masataka Kuwana¹, ¹Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan, ²Department of Pathology, Keio University School of Medicine, Tokyo, Japan, ³Rheumatology, Keio University School of Medicine, Tokyo, Japan
Background/Purpose It is increasingly appreciated that circulating B cells are functionally altered and are involved in pathogenic process in patients with systemic lupus erythematosus (SLE).…
Abstract Number: 1961 • 2014 ACR/ARHP Annual Meeting
Chemokine-like Receptor 1 (CMKLR1) is Expressed on Synoviocytes and Proinflammatory Monocytes in Arthritis and is Predominantly Regulated By β arrestin 2 and G Protein Coupled Receptor Kinase (GRK) 6
D. Stephen Serafin¹, Maria F. Sassano², Daniel Mattox¹, Roman Timoshchenko¹, Matthew J. Billard¹, David P. Siderovski³, Bryan Roth⁴ and Teresa K. Tarrant⁵, ¹Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, ²Pharmacology, Dept. of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, ³Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, ⁴Dept. of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, ⁵Medicine/Rheumatology, Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
Background/Purpose Chemokine-like receptor 1 (CMKLR1) is a G protein-coupled receptor (GPCR) expressed by inflammatory monocytes and up-regulated in fibroblast-like synoviocytes (FLSs), both of which are…
Abstract Number: 1746 • 2014 ACR/ARHP Annual Meeting
Involvement of IL-17-Producing MAIT Cells in the Pathogenesis of Rheumatoid Arthritis
Eri Hayashi¹, Asako Chiba², Mie Kitagaichi³, Kurisu Tada³, Ken Yamaji⁴, Naoto Tamura¹, Yoshinari Takasaki³ and Sachiko Miyake², ¹Rheumatology, Juntendo University School of Medicine, Tokyo, Japan, ²Immunology, Juntendo University School of Medicine, Tokyo, Japan, ³Department of Rheumatology, Juntendo University School of Medicine, Tokyo, Japan, ⁴Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
Background/Purpose: Mucosal-associated invariant T (MAIT) cells are a subset of innate-like lymphocytes which are restricted by the MHC-related molecule-1 (MR1) and express a semi-invariant TCRα…
Abstract Number: 1041 • 2014 ACR/ARHP Annual Meeting
Imaging the Role of Chemoattractants in Inflammatory Arthritis
Yoshishige Miyabe¹, Thomas T. Murooka¹, Chie Miyabe¹, Nancy Kim², Thorsten R. Mempel¹ and Andrew D. Luster¹, ¹Massachusetts General Hospital, Charlestown, MA, ²Div of Rheumatology, Massachusetts General Hospital, Charlestown, MA
Background/Purpose: Inflammatory arthritis, including rheumatoid arthritis, is characterized by neutrophil recruitment into the diseased joint. Our previous studies and the work of others have demonstrated…
Abstract Number: 1030 • 2014 ACR/ARHP Annual Meeting
ABT-122, a Novel Dual Variable Domain (DVD)-Ig^TM, Targeting TNF and IL-17, Inhibits Peripheral Blood Mononuclear Cell Production of GM-CSF and Decreases Lymphocyte Expression of CXCR4 in Healthy Subjects
Melanie Ruzek¹, Donna Conlon¹, Heikki Mansikka², Robert Padley² and Carolyn Cuff³, ¹AbbVie, Inc, Worcester, MA, ²AbbVie, Inc, North Chicago, IL, ³Immunology, AbbVie, Inc, Worcester, MA
Background/Purpose: TNF and IL-17 contribute to the pathogenesis of several inflammatory disorders and are known to synergistically induce chemokines and cytokines, including chemokine (C-X-C motif)…
Abstract Number: 1000 • 2014 ACR/ARHP Annual Meeting
Pathogenic Role of CXC Chemokine receptor 3-Positive B Cells in Bone Destruction of Rheumatoid Arthritis
Yuri Hirosaki, Hiroaki Niiro, Shun-ichiro Ota, Naoko Ueki, Hirofumi Tsuzuki, Kumiko Noda, Siamak Jabbarzadeh-Tabrizi, Hiroki Mitoma, Yojiro Arinobu, Mitsuteru Akahoshi, Hiroshi Tsukamoto and Koichi Akashi, Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
Background/Purpose ：B cells can function as potent effector cells by production of autoantibody, immune complex formation and inflammatory cytokines. Clinical efficacy of B-cell depletion therapy…
Abstract Number: 860 • 2014 ACR/ARHP Annual Meeting
Inhibition of G Protein βγ Signaling Inhibits Nephritis in Lupus Prone Mice
Teresa Owen¹, Javier Rangel-Moreno², Jesi To³, Bruce Goldman⁴, Alan Smrcka³ and Jennifer H. Anolik⁵, ¹Rheumatology, University of Rochester, Rochester, NY, ²Medicine- Allergy, Immunology, and Rheumatology, University of Rochester, Rochester, NY, ³Pharmacology & Physiology, University of Rochester, Rochester, NY, ⁴Pathology, University of Rochester, Rochester, NY, ⁵Medicine- Allergy, Immunology and Rheumatology, University of Rochester, Rochester, NY
Background/Purpose G protein-coupled receptors (GPCRs), including chemokine receptors on leukocytes, signal through G protein Gβγ subunits. An important target of Gβγ is phosphoinositide 3 kinase γ…
Abstract Number: 2393 • 2013 ACR/ARHP Annual Meeting
Involvement Of Transitional T Follicular Like Helper Cells Bearing Triple Phenotypes Of Tfh/Th1/Th17 In The Pathogenesis Of Rheumatoid Arthritis
Shingo Nakayamada¹, Satoshi Kubo², Naoki Yunoue², Maiko Yoshikawa², Shunsuke Fukuyo², Kazuyoshi Saito² and Yoshiya Tanaka², ¹First Department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ²The First Department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
Background/Purpose: T follicular helper (Tfh) cells are a new subset of T helper cells that regulate B cell function and promote autoantibody production. We previously…
Abstract Number: 1792 • 2013 ACR/ARHP Annual Meeting
Inhibition Of Chemokine Receptors CCR1 and CCR6 As Promising Therapies For Autoimmune Diseases Such As Rheumatoid Arthritis and Psoriasis
Daniel Dairaghi¹, Penglie Zhang², Manmohan Leleti², Robert Berahovich³, Karen Ebsworth³, Linda Ertl³, Shichang Miao⁴, Zhenhua Miao³, Lisa Seitz³, Joanne Tan³, Matthew Walters³, Yu Wang³, Jay Powers⁵, Thomas J. Schall⁶ and Juan C. Jaen⁷, ¹Biology, ChemoCentryx, Inc., Mountain View, CA, ²Chemistry, ChemoCentryx, Mountain View, CA, ³Biology, ChemoCentryx, Mountain View, CA, ⁴Pharmacokinetics, ChemoCentryx, Inc., Mountain View, CA, ⁵ChemoCentryx, Mountain View, CA, ⁶ChemoCentryx, Inc., Mountain View, CA, ⁷Discovery and Preclinical Development, ChemoCentryx, Inc., Mountain View, CA
Background/Purpose: Chemokines are key regulators of leukocyte activation and recruitment to sites of inflammation. Of particular relevance in rheumatoid arthritis (RA), the chemokine receptors CCR1…
Abstract Number: 774 • 2013 ACR/ARHP Annual Meeting
Citrullination Of ENA-78/CXCL5 Changes Its Receptor Affinity From CXCR2 To CXCR1 and Induces Monocyte Migration
Ken Yoshida¹, Alisa E. Koch^1,2, Ray A. Ohara³, Phillip L. Campbell¹, M. Asif Amin¹, David A. Fox¹ and Jeffrey H. Ruth⁴, ¹Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, ²VA Medical Service, Ann Arbor, MI, ³University of Michigan Medical School, Ann Arbor, MI, ⁴Internal Medicine, Division of Rheumatology, University of Michigan Medical Center, Ann Arbor, MI
Background/Purpose: We previously showed that citrullinated epithelial-derived neutrophil-activating peptide 78/CXCL5 (citENA-78/CXCL5) was significantly higher in rheumatoid arthritis (RA) synovial fluids (SFs) compared to osteoarthritis (OA)…

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