ACR Meeting Abstracts

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Abstracts tagged "macrophages"

  • Abstract Number: 1510 • 2014 ACR/ARHP Annual Meeting

    Blockade of TLR5 Ligation Is a Novel Strategy for RA Therapy  

    Seung-jae Kim1, Zhenlong Chen1, Abdul Essani2, Michael Volin3, Suncica Volkov1, William Swedler4, Shiva Arami2, Nadera J. Sweiss5 and Shiva Shahrara1, 1Medicine/Rheumatology, University of Illinois at Chicago, Chicago, IL, 2University of Illinois at Chicago, Chicago, IL, 3Microbiology & Immunology, Midwestern University, Downers Grove, IL, 4Section of Rheumatology, University of Illinois at Chicago, Chicago, IL, 5internal medicine section of rheumatology, University of Illinois at Chicago, Chicago, IL

    Background/Purpose: TLR5 expression is highly elevated in RA and CIA lining and sublining macrophages and endothelial cells compared to non-arthritic controls. Additionally, expression of TLR5…
  • Abstract Number: 1198 • 2014 ACR/ARHP Annual Meeting

    Prolactin Is Locally Produced in the Synovium of Patients with Inflammatory Arthritic Diseases and Promotes Macrophage Activation

    Man Wai Tang1, Samuel Garcia2, Danielle M. Gerlag3,4, Kris A. Reedquist5 and Paul P. Tak6,7, 1Division of Clinical Immunology and Rheumatology & Department of Experimental Immunology, 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, 3Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, 4GlaxoSmithKline, Cambridge, United Kingdom, 5Department of Experimental Immunology and Division of Clinical Immunology and Rheumatology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands, 6Division of Clinical Immunology and Rheumatology, Academic Medical Center / University of Amsterdam, Amsterdam, Netherlands, 7University of Cambridge, Cambridge & GlaxoSmithKline, UK, Stevenage, United Kingdom

    Background/Purpose The sex hormone prolactin (PRL) has immunomodulatory properties, can be produced by immune cells, and elevated PRL serum levels have been reported in rheumatoid…
  • Abstract Number: 1151 • 2013 ACR/ARHP Annual Meeting

    Snapin Is Required For Functional Autophagy and Is Critical For Monocyte To Macrophage Differentiation

    Bo Shi1, Qiquan Huang2, Robert Birkett1, Renee E. Koessler3, Andrea Dorfleutner4, Christian Stehlik4 and Richard M. Pope5, 1Division of Rheumatology, Department od Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 2Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 3Medicine/Rheumatology, Northwestern University, Chicago, IL, 4Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, 5Rheumatology, Northwestern University Feinberg school of Medicine, Chicago, IL

    Background/Purpose: Our recent data indicate that Snapin, a SNAP associated protein, is significantly increased in macrophages (MΦs) in rheumatoid arthritis (RA) synovial tissue and its…
  • Abstract Number: 530 • 2013 ACR/ARHP Annual Meeting

    Pattern Recognition Receptor Stimulated Cytokine Expression By Spondyloarthritis Patient Macrophages

    Yi-Ping Liu1, Ashley Bomkamp2, Jens Eickhoff3, Jack Schneck2, Mike Khan4 and Judith Smith5, 1Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, 2University of Wisconsin-Madison, Madison, WI, 3Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, 4Cellular and Molecular Pathology, University of Wisconsin-Madison, Madison, WI, 5Pediatrics, University of Wisconsin-Madison, Madison, WI

    Background/Purpose: Spondyloarthritis (SpA) encompasses a group of chronic inflammatory conditions involving axial arthritis that includes ankylosing spondylitis (AS). GWAS studies in AS have implicated multiple…
  • Abstract Number: 2526 • 2012 ACR/ARHP Annual Meeting

    Bruton′s Tyrosine Kinase and Calreticulin: A Novel Interaction with Implications for Inflammatory and Autoimmune Disease

    Jennifer C. Byrne1, Joan Ní Gabhann1, Kevin Stacey1, Barbara M. Coffey1, Eoghan M. McCarthy2, Warren Thomas3, Eamonn Molloy4, Grainne M. Kearns5 and Caroline Jefferies1, 1Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland, 2Rheumatology, Beaumont Hospital, Dublin, Ireland, 3Molecular Medicine, Royal College of Surgeons in Ireland, Dublin 9, Ireland, 4Rheumatology, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland, 5Rheumatology Department, Beaumont Hospital, Dublin, Ireland

    Background/Purpose: Bruton’s Tyrosine Kinase (Btk) regulates innate immune responses downstream of multiple Toll-like receptors (TLRs), including TLR7. Given the role of TLR7 in driving type…
  • Abstract Number: 328 • 2012 ACR/ARHP Annual Meeting

    IL-7; An Important Pro-Inflammatory Factor That Affects Myeloid Cell Function in RA and CIA

    Nathan D. Chamberlain1, Seung-jae Kim2, Michael Volin3, Anjali Mehta2, Nadera J. Sweiss4 and Shiva Shahrara1, 1Medicine/Rheumatology, University of Illinois at Chicago, Chicago, IL, 2University of Illinois at Chicago, Chicago, IL, 3Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine Midwestern University, Downers Grove, IL, 4internal medicine section of rheumatology, University of Illinois at Chicago, Chicago, IL

    Background/Purpose: The aim of the study was to examine the role of IL-7 in the pathogenesis of rheumatoid arthritis (RA) as well as in collagen…
  • Abstract Number: 2502 • 2012 ACR/ARHP Annual Meeting

    Neutrophil Extracellular Trap-Associated Protein Activation of the Inflammasome Is Enhanced in Lupus M1 Macrophages

    J. Michelle Kahlenberg1, Carolyne K. Smith2, Carmelo Carmona-Rivera1 and Mariana J. Kaplan3, 1Internal Medicine, Division of Rheumatology, University of Michigan, Ann Arbor, MI, 2University of Michigan, Ann Arbor, MI, 3Systemic Autoimmunity Branch, National Institutes of Health/NIAMS, Bethesda, MD

    Background/Purpose: Neutrophil extracellular traps (NETs) contain numerous bactericidal proteins and are an important defense mechanism against microorganisms.  Clearance of NETs is impaired in a subset…
  • Abstract Number: 131 • 2012 ACR/ARHP Annual Meeting

    Subclinical Arthritis Visualised by Positron Emission Tomography and Macrophage Targeting Precedes Clinical Flare in Rheumatoid Arthritis Patients in DAS28 Remission

    Y.Y.J. Gent1, A.E. Voskuyl1, N. Ahmadi2, N. Hoetjes3 and C.J. van der Laken1, 1Rheumatology, VU University Medical Center, Amsterdam, Netherlands, 2Radiology, VU University Medical Center, Amsterdam, Netherlands, 3Nuclear Medicine & PET research, VU University Medical Center, Amsterdam, Netherlands

    Background/Purpose: Macrophages play an important role in the pathophysiology of Rheumatoid Arthritis (RA). Targeting of macrophages by (R)-[11C]PK11195 positron emission tomography (PET) has previously been successfully…
  • Abstract Number: 2152 • 2012 ACR/ARHP Annual Meeting

    Inhibition of Fucose Incorporation Abrogates the Development of Arthritis by Suppressing the Inflammatory Macrophage Development and TNF-α Production

    Jun Li1, Hui-Chen Hsu2, PingAr Yang1, Qi Wu1, David M. Spalding3, W. Winn Chatham4, Robert P. Kimberly5, S. Louis Bridges Jr.6 and John D. Mountz7, 1Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 2Department of Medicine, Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, 3Clinical Immunology and Rheum, University of Alabama at Birmingham, Birmingham, AL, 4University of Alabama at Birmingham, Birmingham, AL, 5Clinical Immun & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, 6Clinical Immunology & Rheum, University of Alabama at Birmingham, Birmingham, AL, 7Department of Medicine, Clinical Immunology & Rheumatology, University of Alabama at Birmingham and Birmingham VA Medical center, Birmingham, AL

    Background/Purpose: Fucosylation, catalyzed by fucosyltransferases (Futs), is an important glycosylation process involved in inflammation, cell death, and differentiation. We have observed an extremely high positive correlation…
  • Abstract Number: 2669 • 2012 ACR/ARHP Annual Meeting

    TLR7 Ligation Contributes to Monocyte Migration in Rheumatoid Arthritis

    Nathan D. Chamberlain1, Seung-jae Kim1, Michael Volin2, William Swedler3, Suncica Volkov1 and Shiva Shahrara1, 1Medicine/Rheumatology, University of Illinois at Chicago, Chicago, IL, 2Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine Midwestern University, Downers Grove, IL, 3Section of Rheumatology, University of Illinois at Chicago, Chicago, IL

    Background/Purpose: The aim of the study was to characterize the expression of TLR7 in rheumatoid arthritis (RA) peripheral blood (PB) cells and to examine the…
  • Abstract Number: 2157 • 2012 ACR/ARHP Annual Meeting

    Resveratrol Counters Pro-Atherogenic Effects of Systemic Lupus Erythematosus and Rheumatoid Arthritis Plasma On Cholesterol Efflux in Human Macrophages

    Allison B. Reiss1, Iryna Voloshyna1, Ofek Hai1, Michael J. Littlefield1, Elise Belilos2, Kristina B. Belostocki2, Lois A. Bonetti3, Gary C. Rosenblum2 and Steven E. Carsons4, 1Medicine, Winthrop University Hospital, Mineola, NY, 2Rheumatology, Winthrop University Hospital, Mineola, NY, 3Rheum & Immun, Winthrop University Hospital, Mineola, NY, 4Div of Rheumatology, Winthrop University Hospital, Mineola, NY

    Background/Purpose: Our group has demonstrated that resveratrol, a plant polyphenol, possesses atheroprotective properties, enhancing expression of reverse cholesterol transport (RCT) proteins. We have reported that Systemic…
  • 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…
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All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

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