Abstracts tagged "macrophages"

Abstract Number: 1800 • 2012 ACR/ARHP Annual Meeting
Macrophages in Hypoxic Rheumatoid Joints Preferentially Express Hypoxia Inducible Transcription Factor-2
Sarah Aynsley¹, Ursula Fearon², Anthony G. Wilson¹ and Munitta Muthana³, ¹Infection and Immunity, University of Sheffield, Sheffield, United Kingdom, ²Rheumatology, Translation Research Group, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland, ³Infection and Immunity, University of sheffield, Sheffield, United Kingdom
Background/Purpose: In rheumatoid arthritis (RA), the influx of inflammatory cells as well as the aggressive proliferation of fibroblast-like synovial cells (FLS) outstrips the oxygen supply…
Abstract Number: 1801 • 2012 ACR/ARHP Annual Meeting
Biological Roles of C5orf30 in Rheumatoid Arthritis
Munitta Muthana¹, Sachin Khetan², Gbadebo Adeleke Adeleke³, Simon Tazzyman³, Sarah Aynsley¹, Fiona Morrow¹, Sarah Hawtree¹, Barbara Ciani⁴ and Anthony G. Wilson¹, ¹Infection and Immunity, University of Sheffield, Sheffield, United Kingdom, ²Infection and immunity, Dr, Sheffield, United Kingdom, ³Infection and Immunity, Dr, Sheffield, United Kingdom, ⁴Chemistry, University of Sheffield, Sheffield, United Kingdom
Background/Purpose: A recent genome wide association study identified the variant rs26232 in the first exon of an uncharacterized gene C5orf30. In addition, this variant is…
Abstract Number: 1454 • 2012 ACR/ARHP Annual Meeting
Characterization of Renal Mononuclear Phagocyte Populations in Murine SLE Nephritis
Ranjit Sahu¹, Ramalingam Bethunaickan² and Anne Davidson¹, ¹Autoimmunity and Musculoskeletal Diseases, Feinstein Institute for Medical Research, Manhasset, NY, ²Autoimmunity, Feinstein Institute for Medical Research, Manhasset, NY
Background/Purpose: Macrophages and dendritic cells contribute to renal damage in chronic renal diseases including lupus nephritis. However owing to their multiple phenotypic and functional variations,…
Abstract Number: 1196 • 2012 ACR/ARHP Annual Meeting
Analysis of Gene Expression Patterns in Rheumatoid Arthritis (RA) Synovial Macrophages From Patients Undergoing Disease Flare
Karen L. Berg¹, Adedayo Hanidu¹, Jon Hill², Xiaoyu Jiang¹, Tom Freeman², Jennifer Swantek¹, Anna Yarlina³, George D. Kalliolias⁴, Lionel B. Ivashkiv⁵ and Gerald H. Nabozny¹, ¹Immunology and Inflammation, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT, ²Scientific Knowledge Discovery, Boehringer Ingelheim Pharmaceuticals Inc, Ridgefield, CT, ³Hospital for Special Surgery, New York, NY, ⁴Medicine, Hospital for Special Surgery, New York, NY, ⁵Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
Background/Purpose: Synovial macrophages play a key role in RA pathogenesis. Their numbers are greatly increased in RA synovium, their phenotype is consistent with a pro-inflammatory…
Abstract Number: 1078 • 2012 ACR/ARHP Annual Meeting
Prolactin Is Increased in Responders to Anti-TNFá Treatment and the Role of the Prolactin Receptor in Rheumatoid Arthritis
Man Wai Tang¹, Danielle Marie Gerlag², Veronica Codullo³, Elsa Vieira-Sousa⁴, Anne Q. Reuwer⁵, Marcel T. Twickler⁵, Robert B. M. Landewé⁶ and Paul Peter Tak⁷, ¹Division of Clinical Immunology and Rheumatology & Department of Experimental Immunology, Academic Medical Center / University of Amsterdam, Amsterdam, Netherlands, ²Clinical Immunology and Rheumatology, Academic Medical Center, Amsterdam, Netherlands, ³Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy, ⁴Rheumatology Research Unit, Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal, ⁵Vascular Medicine, Academic Medical Center/University of Amsterdam, Amsterddam, Netherlands, ⁶Academic Medical Center/University of Amsterdam & Atrium Medical Center, Amsterdam, Netherlands, ⁷Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands
Background/Purpose: Rheumatoid arthritis (RA) is the most common rheumatic disease which mainly affects women. In the last decade, it is known that prolactin (PRL) is…
Abstract Number: 1057 • 2012 ACR/ARHP Annual Meeting
A Specific Inhibitor of Spleen Tyrosine Kinase, PRT062607, Is a Potent Modulator of Innate Immune Cell Function
Lynn A. Kamen¹, Gillian Stephens¹, Anjali Pandey² and Uma Sinha¹, ¹Biology, Portola Pharmaceuticals, South San Francisco, CA, ²Chemistry, Portola Pharmaceuticals, South San Francisco, CA
Background/Purpose: Tumor Necrosis Factor-α (TNF-α) is an essential component of the inflammatory stimuli leading to rheumatoid arthritis (RA). Therapeutics targeting TNF-α are the standard of…
Abstract Number: 901 • 2012 ACR/ARHP Annual Meeting
Colony-Stimulating Factor (CSF) Receptor 1 Blockade Overcomes Overlapping Effects of M-CSF and Interleukin-34 On Myeloid Differentiation and Gene Expression to Reduce Inflammation in Human and Murine Models of Rheumatoid Arthritis
Samuel Garcia¹, Linda M. Hartkamp², Inge E. van Es², Haishan Lin³, Li Long³, Emma L. Masteller³, Brian R. Wong³, Paul P. Tak⁴ and Kris A. Reedquist², ¹Department of Experimental Immunology, Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ²Department of Experimental Immunology, Division of Clinical Immunology and Rheumatology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands, ³Five Prime Therapeutics, Inc., South San Francisco, CA, ⁴Department of Experimental Immunology, Division of Clinical Immunology and Rheumatology, Academic Medical Center, University of Amsterdam and GlaxoSmithKline, Amsterdam, Netherlands
Background/Purpose: Disease activity and response to therapy in RA correlates with changes in synovial macrophage numbers and their products. M-CSF or IL-34 stimulation of their…
Abstract Number: 880 • 2012 ACR/ARHP Annual Meeting
Interferon Regulatory Factor 8 Regulates BAFF Production in Murine Macrophages and Is a Nexus for Cross Talk Between IFN-γ and TGF-β
Weijia Yuan¹, Sanjay Gupta², Jane E. Salmon³ and Alessandra B. Pernis², ¹Rheumatology, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, ²Autoimmunity & Inflammation, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, ³Dept of Medicine, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY
Background/Purpose: Lupus is a systemic autoimmune disease that can lead to severe end-organ damage characterized by unabated inflammation and aberrant tissue repair. Macrophage dysregulation plays…

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