Abstracts tagged "innate immunity"

Abstract Number: 1044 • 2014 ACR/ARHP Annual Meeting
Novel Compound Cytokine Release Inhibitory Drug 3 (CRID3) Inhibits the NLRP3 Inflammasome in Rheumatoid Arthritis
Trudy McGarry¹, Mary Connolly¹, Rebecca C. Coll², Avril A. B. Robertson³, Matthew A. Cooper³, Luke A. O'Neill², Douglas J. Veale¹ and Ursula Fearon¹, ¹Dublin Academic Medical Centre, Translational Rheumatology Research Group, Dublin, Ireland, ²Inflammation Research, School of Biochemistry and Immunology, Dublin, Ireland, ³The University of Queensland, Brisbane, Australia
Background/Purpose: The NLRP3 inflammasome is a multi-protein complex activated in response to environmental pathogens. This results in caspase-1-dependant cleavage of pro-IL-1β and IL-18 to their…
Abstract Number: 2500 • 2013 ACR/ARHP Annual Meeting
Mast Cells Are a Major Source Of IL-17 In Synovium and Extra-Articular Tissues In Spondyloarthritis Related Diseases
T. Noordenbos¹, I. Gofita¹, M. Alsina², E.W.M. Vogels³, A. A. te Velde³, J. D. Cañete⁴, Dominique L. Baeten⁵ and N. Yeremenko¹, ¹Department of Clinical Immunology and Rheumatology and Department of Experimental Immunology, Academic Medical Centre/University of Amsterdam, Amsterdam, Netherlands, ²Department of Dermatology, Hospital Clinic de Barcelona, Barcelona, Spain, ³Tytgat Institute for Liver and Intestinal Research, Academic Medical Centre/University of Amsterdam, the Netherlands, Amsterdam, Netherlands, ⁴Rheumatology, Hospital Clinic, Barcelona, Spain, ⁵Department of Clinical Immunology and Rheumatology Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
Background/Purpose: IL-17 plays a key role in the pathogenesis of spondyloarthritis (SpA) as demonstrated by a recent proof-of-concept trial with the anti-IL17A mAb secukinumab. The…
Abstract Number: 1778 • 2013 ACR/ARHP Annual Meeting
Physical Interactions Between Histidyl-tRNA Synthetase and Endogenous/Exogenous Alarmins Enhance Immunogenicity In a Model Of Antigen-Induced Myositis
Irina Fernandez¹, Lisa Harlow², William Ridgway³ and Dana P. Ascherman⁴, ¹Rheumatology, University of Miami, Miami, FL, ²Rheumatology and Clinical Immunology, University of Miami Miller School of Medicine, Miami, FL, ³Immunology, Allergy and Rheumatology, University of Cincinnati, Cincinnati, OH, ⁴Medicine/Rheumatology, University of Miami Miller School of Medicine, Miami, FL
Objective: To assess the biological interplay between histidyl-tRNA synthetase (HRS) and different endogenous/exogenous ligands capable of generating signals through MyD88-dependent receptor systems in idiopathic inflammatory…
Abstract Number: 1156 • 2013 ACR/ARHP Annual Meeting
Suppression Of Immune Responses and Joint Inflammation By Myeloid-Derived Suppressor Cells In a T Cell-Dependent Mouse Model Of Rheumatoid Arthritis
Katalin Mikecz¹, Julia Kurko¹, Timea Ocsko¹, Andras Vida¹, Beata Tryniszewska¹, Tibor A. Rauch¹, Joel A. Block², Robert S. Katz³, Anjali Nair², Carla R. Scanzello⁴ and Tibor T. Glant¹, ¹Orthopedic Surgery, Rush University Medical Center, Chicago, IL, ²Section of Rheumatology, Rush University Medical Center, Chicago, IL, ³Rush Medical College, Chicago, IL, ⁴Rheumatology, Rush University Medical Center, Chicago, IL
Background/Purpose: Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of innate immune cells with immunosuppressive properties. We previously identified MDSCs in the synovial fluid (SF)…
Abstract Number: 1168 • 2013 ACR/ARHP Annual Meeting
Innate Immune Cell Production Of Interleukin-12 Drives CpG-Induced Macrophage Activation Syndrome
Lehn K. Weaver¹ and Edward M. Behrens², ¹Pediatric Rheumatology, Children's Hospital of Philadelphia, Philadelphia, PA, ²Pediatrics/Rheumatology, Children's Hospital of Philadelphia, Philadelphia, PA
Background/Purpose: Hemophagocytic syndromes are caused by an uncontrolled systemic inflammatory response resulting in cytopenias, multisystem organ failure, and rapid death, often despite aggressive therapy. Macrophage…
Abstract Number: 1149 • 2013 ACR/ARHP Annual Meeting
Phenotypic and Molecular Profile Of Innate Lymphoid Cells In Chronic Synovial Inflammation
Hulda S. Hreggvidsdottir^1,2, Maureen C. Turina¹, Troy Noordenbos^1,3, Marius Munneke⁴, Charlotte Peters², Jochem Bernink², Jenny Mjosberg⁵, Dominique L. Baeten⁶ and Hergen Spits², ¹Department of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ²Tytgat Institute for Liver and Intestinal Research, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ³Department of Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ⁴Department of Hematology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ⁵Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, ⁶Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands
Background/Purpose: Innate lymphoid cells (ILCs) represent a novel family of effector and regulatory cells in innate immunity and tissue remodelling. The family comprises several phenotypically…

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