ACR Meeting Abstracts

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Abstracts tagged "osteoclasts"

  • Abstract Number: 984 • 2019 ACR/ARP Annual Meeting

    Important Role of CD11c+ Cells in Inflammatory Arthritis

    Antonia Puchner1, Elisabeth Simader 1, Victoria Saferding 2, Gerhard Kroenke 3, Rene Pfeifle 4, Daniel Aletaha 1, Josef Smolen 1 and Stephan Blueml 1, 1Medical University of Vienna, Vienna, Austria, 2Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria, 3Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nuremberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Austria, 4University Hospital Erlangen, Erlangen, Germany

    Background/Purpose: Dendritic cells (DCs) are important antigen presenting cells (APCs) and therefore they play an important role in bridging the innate and the adaptive immune…
  • Abstract Number: 1012 • 2019 ACR/ARP Annual Meeting

    Apremilast Inhibits Immune Cells Support of Inflammatory Osteoclastogenesis

    Yannick Degboe 1, Flavia Sunzini 1, Iain McInnes 2 and Carl Goodyear1, 1University of Glasgow, Glasgow, United Kingdom, 2Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, United Kingdom

    Background/Purpose: PsA is associated with bone erosion and inflammation-induced bone loss. This process is mediated by osteoclasts, and modulated by inflammatory cytokines (i.e. TNF, IL-1,…
  • Abstract Number: 1969 • 2019 ACR/ARP Annual Meeting

    FOXO1 Is Required for Human Osteoclast Differentiation

    Sabarinadh Chilaka 1, Yannick Degboe 1, Iain McInnes 2 and Carl Goodyear3, 1Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom., Glasgow, Scotland, United Kingdom, 2Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, United Kingdom, 3University of Glasgow, Glasgow, United Kingdom

    Background/Purpose: Dysregulation of osteoclast differentiation and function is a feature of inflammatory arthropathies (IA). Multiple genes and signalling pathways have been associated with regulation of…
  • Abstract Number: 1989 • 2019 ACR/ARP Annual Meeting

    Netrin-1 and Its Receptor Unc5B Mediates Tenofovir Induced Bone Loss and Dipyridamole, an Agent That Blocks Adenosine Transporter, Is Able to Modulate the Signal

    Aranzazu Mediero1, Patricia Llamas-Granda 2, Bruce Cronstein 3, Raquel Largo 4 and Gabriel Herrero-Beaumont 4, 1IIS-FUNDACION JIMENEZ DIAZ, Madrid, Spain, 2IIS-FUNDACION JIMENEX DIAZ, Madrid, Spain, 3Department of Medicine, Division of Rheumatology NYUSoM, NYC, 4IIS-Fundación Jiménez Díaz, Madrid, Madrid, Spain

    Background/Purpose: Osteopenia and fragility fractures have been associated with HIV infection. Tenofovir, a common antiviral in HIV treatment, also leads to increases in bone catabolism…
  • Abstract Number: 2003 • 2019 ACR/ARP Annual Meeting

    Anti-Polygalacturonic Acid Antibody (PGA-Ab) Induced Bone Destruction in Rheumatoid Arthritis by Promoting Osteoclastogenesis via Integrin Beta 5

    JIAWEI XIE1 and HUI DAI 1, 1Peking University, Beijing, China (People's Republic)

    Background/Purpose: Anti-polygalacturonic acid antibody (PGA-Ab) is a new rheumatoid arthritis (RA)-related autoantibody first identified by our group. The sensitivity and specificity of PGA-Ab is even…
  • Abstract Number: 1052 • 2018 ACR/ARHP Annual Meeting

    Detection of Precursors of RANK- Osteoclast-like Cells (Olcs) in Peripheral Blood and Olcs in Bone Tissue from Rheumatoid Arthritis Patients

    Kazuhiro Yokota1, Shinya Tanaka2, Miyoko Sekikawa2, Yoshimi Aizaki1, Kojiro Sato1, Hiromi Oda2 and Toshihide Mimura1, 1Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Saitama, Japan, 2Department of Orthopaedic Surgery, Saitama Medical University, Saitama, Japan

    Background/Purpose: Proinflammatory cytokines play an important role in bone destruction in rheumatoid arthritis (RA), as inferred by the efficacy of biologics. Previously, we reported that…
  • Abstract Number: 1435 • 2017 ACR/ARHP Annual Meeting

    Consistent Inhibition of Joint Destruction By Denosumab in Important Subgroups of Japanese Patients with Rheumatoid Arthritis: Pooled Analysis of Phase 2 and 3 Studies

    Yoshiya Tanaka1, Tsutomu Takeuchi2, Satoshi Soen3, Naoki Ishiguro4, Hisashi Yamanaka5, Toshiyuki Yoneda6, Sakae Tanaka7, Takaya Nitta8, Naoki Okubo9, Harry K. Genant10 and Désirée van der Heijde11, 1University of Occupational and Environmental Health, Kitakyushu, Japan, 2Keio University School of Medicine, Tokyo, Japan, 3Kindai University Nara Hospital, Ikoma, Japan, 4Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan, 5Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan, 6Indiana University School of Medicine, Indianapolis, IN, 7Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Japan, 8Daiichi Sankyo Co., Ltd., Tokyo, Japan, 9DaiichiSankyo CO., LTD., Tokyo, Japan, 10University of California, San Francisco, CA, 11Leiden University Medical Center, Leiden, Netherlands

    Background/Purpose: Denosumab is a fully human monoclonal antibody (IgG2 subclass) that inhibits bone resorption by blocking RANKL. Phase 2 (DRIVE) and phase 3 (DESIRABLE) studies…
  • Abstract Number: 1942 • 2017 ACR/ARHP Annual Meeting

    CTLA4-Ig Directly Inhibits Osteoclast Generation from Human Peripheral Monocytes and Tumor Necrosis Factor α-Treated Inflammatory Monocytes

    Katsuhiro Oi1, Tadahiro Tokunaga1, Tatsuomi Kuranobu1, Yusuke Yoshida2, Shintaro Hirata1, Takaki Nojima3 and Eiji Sugiyama2, 1Clinical Immunology and Rheumatology, Hiroshima University Hospital, Hiroshima, Japan, 2Department of Clinical Immunology and Rheumatology, Hiroshima University Hospital, Hiroshima, Japan, 3Clinical Immunology and Rheumatolog, Graduate School of Medicine, Kyoto University, Kyoto, Japan

    Background/Purpose: CTLA-4 is a surface protein on T lymphocytes, which negatively regulates the co-stimulation process between antigen-presenting cells and T cells. CTLA-4 binds to monocytes…
  • Abstract Number: 329 • 2016 ACR/ARHP Annual Meeting

    Explore the Possible Mechanisms of 1,25(OH)2D3 on the Formation of Osteoclasts in Rheumatoid Arthritis

    Hong-yan WEN1, Dan-dan LIU2, Dan-dan WEI2, Fang-fang ZHAO2 and Xiao-feng LI2, 1Rheumatology, Shanxi Medical University, The Second Hospital of Shanxi Medical University, Taiyuan, China, 2Shanxi Medical University, The Second Hospital of Shanxi Medical University, Taiyuan, China

    Background/Purpose: In our previous study, several conclusions are reached like: (1) IL-22 can promote inflammation and osteoclast formation in the process of RA;(2) 1,25(OH)2D3 decreases serum IL-22 level in RA patients, and acts as a…
  • Abstract Number: 366 • 2016 ACR/ARHP Annual Meeting

    Peripheral Osteoclastogensis Is Coming Back Along with Inflammation Twelve Months after Rituximab Therapy

    Mie Jin Lim1, Won Park2, Seong-Ryul Kwon3 and Kyong-Hee Jung4, 1Division of Rheumatology, Departments of Internal Medicine, Inha University Hospital, Incheion, South Korea, 2Medicine/Rheumatology, IN-HA University Hospital, Choong-Gu Incheon, Korea, Republic of, 3Center for Rheumatism, Inha University Hospital, Incheon, South Korea, 4Hospital for Rheumatic Disease, Hanyang Univ Medical Center, Seoul, South Korea

    Background/Purpose: We investigated change of bone turnover markers in peripheral blood before, 6 and 12 months after rituximab therapy in seropositive RA patients. Methods: Ten…
  • Abstract Number: 3097 • 2016 ACR/ARHP Annual Meeting

    Osteoclast Precursor Frequency and Imaging Findings Associated with Arthritis Onset in a Psoriasis Longitudinal Cohort

    Ralf G. Thiele1, Yahui Grace Chiu2, Francisco Tausk3, Bethany A. Marston4, Changyong Feng5, Gregory Dieudonne6, Vaseem Chengazi6, Sharon Moorehead7, Debbie Campbell7 and Christopher T. Ritchlin8, 1Medicine, University of Rochester Medical Center, Rochester, NY, 2Allergy, Immunology, and Rheumatology, University of Rochester Medical Center, Rochester, NY, 3Dermatology, University of Rochester, Rochester, NY, 4Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, 5Statistics, University of Rochester, Rochester, NY, 6Radiology, University of Rochester, Rochester, NY, 7Allergy, Immunology & Rheumatology, University of Rochester, Rochester, NY, 8Allergy Immunology & Rheumatology, University of Rochester Medical Center, Rochester, NY

    Background/Purpose: Psoriasis (Ps) precedes joint inflammation by an average of 10 years psoriatic arthritis (PsA) patients. Reports have demonstrated abnormal musculoskeletal imaging findings in psoriasis…
  • Abstract Number: 1737 • 2015 ACR/ARHP Annual Meeting

    Increased Osteoclast Precursors with an Elevated DC-STAMP Expression May Identify Psoriasis Patients at Risk for Psoriatic Arthritis

    Yahui Grace Chiu1, Sutha Shanmugarajah2, Dongge Li3, Megan Freiburger4, Sharon Moorehead5, Dafna Gladman6 and Christopher T. Ritchlin7, 1Allergy, Immunology, and Rheumatology, University of Rochester, Rochester, NY, 2Toronto Western Hospital, Toronto, ON, Canada, 3Allergy, Immunology and Rheumatology, University of Rochester, Rochester, NY, 4Biology, University of Rochester, Rochester, NY, 5Allergy, Immunology & Rheumatology, University of Rochester, Rochester, NY, 6Allergy, Immunology & Rheumatology, Toronto Western Hospital, Toronto, ON, Canada, 7Allergy, Immunology and Rheumatololgy Division, University of Rochester Medical Center, Rochester, NY

    Background/Purpose: Approximately 25% of psoriasis (Ps) patients develop into psoriatic arthritis (PsA) within 10 years. This Ps-to-PsA transition paradigm provides a unique opportunity to recognize…
  • Abstract Number: 2569 • 2015 ACR/ARHP Annual Meeting

    Regulation of SIRT1 Maybe a Perfect Strategy in Treatment of Rheumatoid Arthritis

    Sang-Yeob Lee1, Sung Won Lee2, Won Tae Chung2, Jae Ho Bae3, So Youn Park4 and Chi Dae Kim4, 1Division of Rheumatology, Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea, 2Rheumatology, Dong-A University Hospital, Busan, South Korea, 3Biochemistry, Pusan national university, Yong -San, South Korea, 4Medical Research Center for Ischemic Tissue Regeneration, Pusan national university, Yong -San, South Korea

    Background/Purpose: Monocyte may differentiate to osteoclasts in bone and macrophages in joint. so, blocking of monocyte differentiation maybe effective target in RA (rheumatoid arthritis) treatment.…
  • Abstract Number: 34 • 2014 ACR/ARHP Annual Meeting

    Pro-Nerve Growth Factor (ProNGF) Stimulates Bone Growth By Stimulating Osteoblasts and Inhibiting Osteoclast Differentiation, an Explanation for Anti-NGF-Mediated Osteonecrosis; Prongf Is a Novel Therapeutic Target for Treatment of Osteonecrosis and Charcot’s Arthropathy

    Aranzazu Mediero1, Barbara Hempstead2 and Bruce N. Cronstein3, 1Medicine, Division of Translational Medicine, NYU School of Medicine, New York, NY, 2Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York, NY, 3NYU School of Medicine, Division of Rheumatology, New York, NY

    Background/Purpose Neurotrophins (Nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF)) are initially synthesized as pro-neurotrophins (proNGF and proBDNF), which are hydrolyzed to produce the…
  • Abstract Number: 2340 • 2014 ACR/ARHP Annual Meeting

    Human Osteoclasts Are Mobilized in Erosive Arthritis of Epstein-Barr Virus-Infected Humanized NOD/Shi-Scid/IL-2Rγnull Mice

    Yosuke Nagasawa1, Natsumi Ikumi2, Takamasa Nozaki1, Hirotake Inomata1, Kenichi Imadome3, Noboru Kitamura1, Mitsuhiro Iwata1, Shigeyoshi Fujiwara4 and Masami Takei1, 1Division of Hematology and Rheumatology, Nihon University School of Medicine, Tokyo, Japan, 2Division of Heamatology and Rheumatology, Nihon University School of Medicine, Tokyo, Japan, 3Department of Infectious Diseases, National Research Institute for Child Health and Development, Tokyo, Japan, 4Department of Iinfectious Diseases, National Research Institute for Child Health and Development, Tokyo, Japan

    Background/Purpose Various studies of the relationship between Epstein-Barr virus (EBV) and rheumatoid arthritis (RA) have not produced convincing evidence. Many human viruses do not infect…
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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.

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