Abstracts tagged "cytokines"

Abstract Number: 407 • 2012 ACR/ARHP Annual Meeting
The I50V IL4R SNP Is Associated with Increased Th17 Cell Frequency and Poor Clinical Outcome in Rheumatoid Arthritis
Jan Leipe¹, Iryna Prots², Markus A. Schramm¹, Matthias Witt¹, Axel P. Nigg¹, Christiane S. Reindl¹, Claudia Dechant¹, Mathias Grunke¹, Hendrik Schulze-Koops¹ and Alla Skapenko³, ¹Division of Rheumatology and Clinical Immunology, Med. Klinik und Poliklinik IV, University of Munich, Munich, Germany, ²Friedrich-Alexander-University Erlangen-Nürnberg, Junior Research Group III, Interdisciplinary Center for Clinical Research Nikolaus-Fiebiger Center for Molecular Medicine, Erlangen, ³Division of Rheumatology and Clinical Immunology, University of Munich, Munich, Germany
Background/Purpose: A single nucleotide polymorphism (SNP) in the IL4R gene (I50V, rs 1805010) has previously been associated with an aggressive destructive course of rheumatoid arthritis…
Abstract Number: 2504 • 2012 ACR/ARHP Annual Meeting
SOCS1 Is One of the Key Molecules to Prevent the Plasticity of Regulatory T Cells and the Development of Autoimmunity
Reiko Takahashi¹, Kenji Itoh¹, Fumihiko Kimura¹ and Akihiko Yoshimura², ¹Division of Rheumatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan, ²Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
Background/Purpose: Suppression of autoimmunity or inflamation by regulatory T cells (Tregs) is now well established, recently, natural Foxp3+T cells have been shown to be a…
Abstract Number: 1788 • 2012 ACR/ARHP Annual Meeting
TSLP Induces TNFα Production by CD1c Myeloid Dendritic Cells and Myeloid DC-Activated T Cells From Rheumatoid Arthritis Patients
F.M. Moret¹, T.R.D.J. Radstake², J.W.J. Bijlsma¹, F.P.J.G. Lafeber¹ and J.A.G. van Roon³, ¹Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ²Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ³Rheumatology & Clinical Immunology/Lab Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
Background/Purpose: Thymic stromal lymphopoietin (TSLP) is well known for its potent activation of myeloid dendritic cells (mDCs) to induce Th2-mediated immune responses. Fibroblasts from rheumatoid arthritis…
Abstract Number: 1079 • 2012 ACR/ARHP Annual Meeting
Polyclonal CD4⁺Foxp3⁺treg Cells Induce TGFb-Dependent Tolerogenic Dendritic Cells That Suppress Murine Lupus-Like Syndrome
Qin Lan¹ and Song G. Zheng², ¹Medicine, University of Southern California, Los Angeles, CA, ²Medicine, Keck School of Medicine of USC, Los Angeles, CA
Background/Purpose: Interplay between Foxp3+ regulatory T cells (Treg) and dendritic cells (DCs) maintains immunologic tolerance, but the effects of each cell on the other are…
Abstract Number: 343 • 2012 ACR/ARHP Annual Meeting
Functional Impairment in an Animal Model for Rheumatoid Arthritis Assessed As Changes in Gait Is Due to Joint Destruction but Not Synovial Inflammation Per Se
Gregor Bauer¹, Constantin Aschauer¹, Birgit Niederreiter², Josef S. Smolen³, Kurt Redlich² and Silvia Hayer², ¹Dep. of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria, ²Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria, ³Division of Rheumatology, Department of Internal Medicine III,, Medical University of Vienna and Hietzing Hospital, Vienna, Austria
Background/Purpose: To investigate the individual impact of synovial inflammation, subchondral bone erosion or cartilage damage on functional impairment in an animal model of Rheumatoid Arthritis…
Abstract Number: 2415 • 2012 ACR/ARHP Annual Meeting
Does Interleukin-6 Mediate the Relation Between Estrogen and Bone? an Epidemiologic Approach in the Framingham Osteoporosis Study
Robert R. McLean¹, Xiaochun Zhang², Andrea D. Coviello³, Joao D.T. Fontes⁴, L. Adrienne Cupples⁵, Douglas P. Kiel⁶ and Marian T. Hannan¹, ¹Institute for Aging Research, Hebrew SeniorLife & Harvard Medical School, Boston, MA, ²Institute for Aging Research, Hebrew Senior Life, Boston, MA, ³Boston University School of Medicine, Boston, MA, ⁴Framingham Heart Study and Boston University, Framingham, MA, ⁵Department of Biostatistics, Boston University School of Public Health, Boston, MA, ⁶Institute for Aging Research, Hebrew SeniorLife, Dept. of Medicine Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
Background/Purpose: Laboratory and animal studies suggest that lower sex hormone levels promote production and activity of pro-inflammatory cytokines that trigger bone resorption. This paradigm is…
Abstract Number: 1793 • 2012 ACR/ARHP Annual Meeting
The Cyclooxygenase/Prostaglandin-E₂ Pathway Is Critical for Autocrine IL-17A Production by Th17 Cells Upon Synovial Fibroblast Interaction
Sandra M.J. Paulissen¹, Jan Piet van Hamburg², Nadine Davelaar³, Patrick S. Asmawidjaja³, Johanna M.W. Hazes⁴ and Erik Lubberts³, ¹Immunology, Erasmus Medical Center, Immunology, Rotterdam, Netherlands, ²Rheumatology, Erasmus MC, Rotterdam, Netherlands, ³Rheumatology, Erasmus MC, University Medical Center, Rotterdam, Netherlands, ⁴Rheumatology, Erasmus University Medical Center, Rotterdam, Netherlands
Background/Purpose: Recently, we have shown that Th17, but not Th1 cells, from patients with early rheumatoid arthritis (RA) are potent activators of RA synovial fibroblasts…
Abstract Number: 1058 • 2012 ACR/ARHP Annual Meeting
Fulminant Toll-Like Receptor 9-Induced Macrophage Activation Syndrome and Hemophagocytosis Occur Independently of Interferon Gamma
Scott W. Canna¹, Julia Wrobel², Portia A. Kreiger³, Michele E. Paessler⁴ and Edward M. Behrens⁵, ¹Pediatric Rheumatology, Childrens Hospital of Philadelphia, Philadelphia, PA, ²Pediatric Rheumatology, The Children's Hospital of Philadelphia, Philadelphia, PA, ³Pathology, Nemours/A.I. DuPont Hospital for Children, Wilmington, DE, ⁴Hematopathology, Childrens Hospital of Philadelphia, Philadelphia, PA, ⁵Rheumatology, Children's Hospital of Philadelphia, Philadelphia, PA
Background/Purpose: Macrophage Activation Syndrome (MAS) is a potentially lethal cytokine storm syndrome that complicates various rheumatic diseases. We have previously shown that Toll-like Receptor (TLR9)…
Abstract Number: 314 • 2012 ACR/ARHP Annual Meeting
Transcriptome and Surface Phenotype Analyses Suggest an Alternatively Activated (M2) Function for Hemophagocytes
Scott W. Canna¹, Ana Patrícia Costa Reis², William E. Bernal³, Kathleen E. Sullivan⁴, Michele E. Paessler⁵ and Edward M. Behrens⁶, ¹Pediatric Rheumatology, Childrens Hospital of Philadelphia, Philadelphia, PA, ²Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA, ³Division of Rheumatology, Children's Hospital of Philadelphia, Philadelphia, PA, ⁴Immunology ARC 1216, The Children's Hospital of Philadelphia, Philadelphia, PA, ⁵Hematopathology, Childrens Hospital of Philadelphia, Philadelphia, PA, ⁶Rheumatology, Children's Hospital of Philadelphia, Philadelphia, PA
Background/Purpose: Hemophagocytes (HPCs) are activated macrophages identified in situ by having engulfed other hematopoietic cells. HPCs are rarely seen in normal bone marrow, but are…
Abstract Number: 2392 • 2012 ACR/ARHP Annual Meeting
Blood Vessel Instability and Oxidative Damage in Giant Cell Arteritis
Danielle Molloy¹, Jennifer McCormick², Mary Connolly², Muhammad Haroon³, Douglas J. Veale², Conor Murphy⁴, Ursula Fearon² and Eamonn S. Molloy¹, ¹Rheumatology, St. Vincent's University Hospital, Dublin 4, Ireland, ²Rheumatology, Dublin Academic Medical Center, St. Vincent's University Hospital, Dublin, Ireland, ³Department of Rheumatology, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland, ⁴Department of Ophthalmology, Royal Victoria Eye and Ear Hospital, Dublin, Ireland
Background/Purpose: Giant cell arteritis (GCA) is the most common form of primary vasculitis. The pathogenesis is incompletely understood, but involves neoangiogenesis and inflammatory infiltration of…
Abstract Number: 1775 • 2012 ACR/ARHP Annual Meeting
The Phosphoinositide 3-Kinase Pathway Regulates Fibroblast-Like Synoviocyte Invasion
Beatrix Bartok¹, Deepa Hammaker² and Gary S. Firestein³, ¹Rheumatology, UCSD, La Jolla, CA, ²MC 0656, Univ of California San Diego, La Jolla, CA, ³Div of Rheumatology, UCSD School of Medicine, La Jolla, CA
Background/Purpose: Cartilage destruction mediated by invasive fibroblast-like synoviocytes (FLS) plays a central role in pathogenesis of RA. Increased cell migration and degradation of extracellular matrix…
Abstract Number: 1074 • 2012 ACR/ARHP Annual Meeting
TLR2 Deletion Promotes Arthritis and Joint Destruction Through Reduction of IL-10
Qi Quan Huang¹, Renee E. Koessler¹, Robert Birkett², Harris R. Perlman³, Lianping Xing⁴ and Richard M. Pope⁵, ¹Medicine/Rheumatology, Northwestern University, Chicago, IL, ²Division of Rheumatology, Department od Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, ³Feinberg School of Medicine, Northwestern University, Chicago, IL, ⁴Pathology & Lab Medicine, University of Rochester, Rochester, NY, ⁵Rheumatology, Northwestern University Feinberg school of Medicine, Chicago, IL
Background/Purpose: TLR2 signaling pathway has been suggested as a potential therapeutic target in RA. However, studies with mice deficient in TLR2 (TLR2-/-) and IL-1Ra suggest…
Abstract Number: 319 • 2012 ACR/ARHP Annual Meeting
Gamma Interferon-Induced Protein-10 (IP-10) As a Potential Biomarker for Disease Activity in Pediatric Localized Scleroderma
Katherine Kurzinski¹, Carol A. Feghali-Bostwick², Christina Kelsey¹, Kelsey Magee³ and Kathryn S. Torok⁴, ¹Pediatric Rheumatology, Univ of Pittsburgh Med Ctr, Pittsburgh, PA, ²Medicine, University of Pittsburgh, Pittsburgh, PA, ³Pediatric Rheumatology, University of Pittsburgh, Pittsburgh, PA, ⁴Pediatric Rheumatology, Scleroderma Center of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA
Background/Purpose: Pediatric localized scleroderma (LS) is an autoimmune disease affecting the skin and underlying tissue. Cutaneous findings assist in categorizing the patients into active or…
Abstract Number: 2349 • 2012 ACR/ARHP Annual Meeting
Corticosterois Therapy Restaured Treg/Th17 Balance in Patients with Polimyalgia Rheumatica
Lorena Alvarez-Rodriguez¹, Marcos Lopez-Hoyos², Jaime Calvo-Alen³, Elena Aurrecoechea⁴, Teresa Ruiz Jimeno⁴, Ignacio Villa⁴, Carmen Gonzalez-Vela⁵ and Victor M. Martinez-Taboada¹, ¹Rheumatology, Hospital Universitario Marques de Valdecilla. IFIMAV, Santander, Spain, ²Immunology, Hospital Universitario Marques de Valdecilla. IFIMAV, Santander, Spain, ³Rheumatology, Hospital de Sierrallana. Torrelavega. Spain, Torrelavega, Spain, ⁴Rheumatology, Hospital de Sierrallana, Torrelavega, Spain, ⁵Pathology Anatomy, Hospital Universitario Marques de Valdecilla. IFIMAV, Santander, Spain
Background/Purpose: To characterize the levels of circulating T regulatory cells (Tregs) and Th17 cells in polymyalgia rheumatica (PMR). Methods: The study included 46 patients with…
Abstract Number: 1600 • 2012 ACR/ARHP Annual Meeting
Gene Targeting of an Integrin-Mediated Signaling Adaptor Molecule, Crk-Associated Substrate Lymphocyte Type Reduced the Severity of Collagen-Induced Arthritis. Its Possible Involvement in the Pathophysiology of Rheumatoid Arthritis
Satoshi Iwata, Tomoki Katayose, Yoshiko Kichikawa, Hiromi Ichihara, Hiroshi Kawasaki, Osamu Hosono, Hirotoshi Tanaka and Chikao Morimoto, Department of Rheumatology and Allergy, Research Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
Background/Purpose: It has been reported that the expression levels of β1 integrins and the ligands such as VCAM-1 are elevated in the affected joints of…

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