Abstracts tagged "Macrophage"

Abstract Number: 3003 • 2014 ACR/ARHP Annual Meeting
Am80 Ameliorates Bleomycin-Induced Dermal Fibrosis By Suppressing the Pro-Fibrotic Phenotype of Fibroblasts, Endothelial Cells, and Immune Cells
Tetsuo Toyama¹, Yoshihide Asano¹, Takehiro Takahashi¹, Ryosuke Saigusa¹, Yohei Ichimura¹, Takashi Taniguchi¹, Shinji Noda¹, Kaname Akamata¹, Shinichi Sato¹, Takafumi Kadono¹ and Koichi Shudo², ¹Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan, ²Reseach Foundation ITSUU Laboratory, Tokyo, Japan
Background/Purpose: Am80 is a synthetic retinoid serving as an agonist for retinoic acid receptor α/β with chemical and pharmacological advantages over all-trans retinoic acid, such…
Abstract Number: 2952 • 2014 ACR/ARHP Annual Meeting
S100A9 Inhibitor Paquinimod (ABR-215757) reduces Joint Destruction in Experimental Osteoarthritis and Blocks Activating Effects of S100A9 in OA Synovium
Peter L. van Lent¹, Rik Schelbergen², Arjen B. Blom¹, Tomas Leanderson³, Helena Eriksson⁴ and Wim B. van den Berg⁵, ¹Experimental Rheumatology, Radboud university medical center, Nijmegen, Netherlands, ²Radboud university medical center, Nijmegen, Netherlands, ³Immunology Group, Lund University, Lund, Sweden, ⁴BioScience, Active Biotech AB, Lund, Sweden, ⁵Experimental Rheumatology (272), Radboud university medical center, Nijmegen, Netherlands
Background/Purpose Synovial activation is present in more than 50% of osteoarthritis (OA) patients and it is thought to be involved in the development of OA…
Abstract Number: 2127 • 2014 ACR/ARHP Annual Meeting
Subclinical Arthritis Is Detected By Macrophage Targeting and Positron Emission Tomography (PET) in Early RA Patients in Clinical Remission
Y.Y.J. Gent¹, M.M. ter Wee¹, D den Uyl¹, N. Ahmadi², W.F. Lems³, O.S. Hoekstra⁴, A.E. Voskuyl¹ and C.J. Van der Laken³, ¹Rheumatology, VU University Medical Center, Amsterdam, Netherlands, ²Radiology, VU University Medical Center, Amsterdam, Netherlands, ³Rheumatology, VU Medical Center, Amsterdam, Netherlands, ⁴Nuclear Medicine, VU Medical Center, Amsterdam, Netherlands
Background/Purpose: Recurrent flares in RA patients in complete remission (CR) are not an uncommon phenomenon. Studies with advanced imaging techniques have suggested that residual subclinical…
Abstract Number: 1714 • 2014 ACR/ARHP Annual Meeting
IL-6 Trans-Signalling Activates M2 Macrophage Polarisation and Mediates Fibrotic Response in Scleroderma
Rebecca Alade, Shiwen Xu, Korsa Khan, Angela Tam, Christopher P. Denton and Voon H. Ong, Centre for Rheumatology and Connective Tissue Diseases, UCL Medical School Royal Free Campus, London, United Kingdom
Background/Purpose IL6 is a key mediator in activation of extracellular matrix (ECM) in scleroderma (SSc) fibroblasts and via its interplay with chemokines may modulate mononuclear…
Abstract Number: 1651 • 2014 ACR/ARHP Annual Meeting
Association of Glomerular Macrophage Phenotypes and Urine Soluble CD163 with Disease Activity in Human Lupus Nephritis
Naotake Tsuboi¹, Nobuhide Endo¹, Seiichi Matsuo² and Shoichi Maruyama¹, ¹Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Japan, ²Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Japan
Background/Purpose: In addition to the effector roles of classically activated macrophages for tissue injury, recent studies have shown that alternatively activated (M2) macrophages are involved…
Abstract Number: 1486 • 2014 ACR/ARHP Annual Meeting
Rapid Onset of Clinical Benefit Is Associated with a Reduction in Validated Biomarkers of Disease in Patients with Rheumatoid Arthritis Treated with Mavrilimumab, a Human Monoclonal Antibody Targeting GM-CSFRÃ¡
Iain B. McInnes¹, Gerd Burmester², Joel M. Kremer³, Pedro Miranda⁴, Mariusz Korkosz⁵, Jiri Vencovsky⁶, Andrea Rubbert-Roth⁷, Eduardo Mysler⁸, David Close⁹, Matthew A. Sleeman¹⁰, Alex Godwood¹¹, Sara Sandbach¹², Patricia C. Ryan¹³, Dominic Sinibaldi¹⁴, Wendy White¹³, Nadine A. Defranoux¹⁵ and Michael Weinblatt¹⁶, ¹Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom, ²Department of Rheumatology and Clinical Immunology, Charité - University Medicine Berlin, Berlin, Germany, ³Medicine, Albany Medical College and the Center for Rheumatology, Albany, NY, ⁴Centro de Estudios Reumatologicos, Santiago, Chile, ⁵Inernal Medicine and Gerontology, Malopolskie Centrum Medyczne, Krakow, Poland, ⁶Rheumatology, Charles University Institute of Rheumatology, Prague, Czech Republic, ⁷Med Clinic I, University of Cologne, koln, Germany, ⁸Rheumatology, OMI, Buenos Aires, Argentina, ⁹Clinical Development, MedImmune Ltd, Cambridge, United Kingdom, ¹⁰Respiratory, Inflammation and Autoimmunity, MedImmune Ltd, Cambridge, United Kingdom, ¹¹Clinical Biostatics and Data Management, MedImmune Ltd, Cambridge, United Kingdom, ¹²Clinical biologics, MedImmune Ltd, Cambridge, United Kingdom, ¹³Translational Sciences, MedImmune, Gaithersburg, MD, ¹⁴R&D IS Translational & Clinical Informatics, MedImmune, Gaithersburg, MD, ¹⁵Crescendo Bioscience Inc., South San Francisco, CA, ¹⁶Rheumatology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA
Background/Purpose Macrophages are pivotal to rheumatoid pathogenesis and their inflammatory products drive many of the signs and symptoms of disease. Mavrilimumab inhibits macrophage activation and…
Abstract Number: 1493 • 2014 ACR/ARHP Annual Meeting
A Phase 1 Study of FPA008, an Anti-Colony Stimulating Factor 1 Receptor (anti-CSF1R) Antibody in Healthy Volunteers and Subjects with Rheumatoid Arthritis (RA): Preliminary Results
Julie Hambleton¹, Lei Zhou¹, Seema Rogers¹, Sjoerd van Marle², Thijs van Iersel², James Zanghi¹, Emma Masteller¹, Kevin Baker¹ and Brian Wong¹, ¹Five Prime Therapeutics, South San Francisco, CA, ²PRA Health Sciences, Groningen, Netherlands
Background/Purpose Activation of CSF1R via IL34 or CSF1 results in activation, differentiation, and survival of monocytes, macrophages and osteoclasts. CSF1R activation produces inflammatory cytokines responsible…
Abstract Number: 1764 • 2013 ACR/ARHP Annual Meeting
Binding Of Apoptotic Fetal Cardiocytes By Anti-Ro Antibodies Stimulates uPA/uPAR- Dependent Macrophage Infiltration and M2 Type Phenotype
Paraskevi Briasouli¹, Savvas Pavlides², Leslie Gold³, Mark Halushka⁴ and Jill P. Buyon⁵, ¹Rheumatology, New York University Medical Center, New York, NY, ²New York University Medical Center, new York, NY, ³new York University Medical Center, new York, NY, ⁴Division of Cardiovascular Pathology, John Hopkins Pathology, Baltimore, MD, ⁵Medicine, Division of Rheumatology, NYU School of Medicine, New York, NY
Background/Purpose: Organ injury induced by antibodies characteristic of Sjogren's Syndrome and Systemic Lupus Erythematosus, while varied in the adult and fetus, may share in common…
Abstract Number: 1730 • 2013 ACR/ARHP Annual Meeting
Novel Role For Ly6C^– Monocyte Subsets and Joint Macrophages In Mouse Model Of Rheumatoid Arthritis
Alexander Misharin¹, Carla M. Cuda², Rana Saber³, Angelica K. Gierut⁴, G. Kenneth Haines III⁵, Steffen Jung⁶ and Harris R. Perlman⁷, ¹Medicine, Division of Rheumatology, Northwestern University, Chicago, IL, ²Medicine / Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ³Medicine/Rheumatology, Northwestern University, Chicago, IL, ⁴Rheumatology, Northwestern Med Faculty Found, Chicago, IL, ⁵Department of Pathology, Yale University, New Haven, CT, ⁶Immunology, Weizmann Institute, Rehovot, Israel, ⁷Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: Monocytes and macrophages play a key role in the pathogenesis of rheumatoid arthritis. However, role of the individual subsets of monocytes and macrophages in…
Abstract Number: 1279 • 2013 ACR/ARHP Annual Meeting
Anti-IL-6 Receptor Antibody Is Effective In Arthritis Regardless Of Obesity In Mouse Model
Miho Suzuki, Hiroto Yoshida and Yoshihiro Matsumoto, Product Research Department, Chugai Pharmaceutical Co., Ltd., Gotemba, Japan
Background/Purpose: Compared with non-obese patients, obese patients with rheumatoid arthritis (RA) reportedly experience worsening of symptoms [Arthritis Care Res (Hoboken). 2013; 65: 78-87] and do…
Abstract Number: 1159 • 2013 ACR/ARHP Annual Meeting
Exercise Suppresses Systemic Inflammation Via Inhibition Of NF-κB Activation In Monocytes
Alisa Blazek¹, Derrick Knapik², Lai-Chu Wu³, Nicholas A. Young³, Wael N. Jarjour⁴ and Sudha Agarwal⁵, ¹Molecular, Cellular and Developmental Biology, The Ohio State University, Columbus, OH, ²College of Medicine, The Ohio State University, Columbus, OH, ³Immunology and Rheumatology, The Ohio State University Wexner Medical Center, Columbus, OH, ⁴Dept of Rheumatology/Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, ⁵Division of Rheumatology and Immunology, The Ohio State University Wexner Medical Center, Columbus, OH
Background/Purpose: Inflammation is integral to joint damage and bone erosion in rheumatoid arthritis. We reported previously that physiologic levels of exercise are anti-inflammatory and suppress local…
Abstract Number: 1150 • 2013 ACR/ARHP Annual Meeting
Differential Regulation Of IL-10 and Dusp1 Production By Kinases In The p38 MAPK Pathway
Deepa Hammaker¹, Katharyn Topolewski² and G. S. Firestein³, ¹MC 0656, UCSD School of Medicine, La Jolla, CA, ²UCSD School of Medicine, La Jolla, CA, ³Div of Rheumatology, UCSD School of Medicine, La Jolla, CA
Background/Purpose: MAPK kinases MKK3 and MKK6 regulate p38 function in inflammatory diseases like rheumatoid arthritis (RA). Targeting MKK3 or MKK6 might be superior to traditional…
Abstract Number: 933 • 2013 ACR/ARHP Annual Meeting
Characterizing The Expression and Function Of CCL28 and Its Corresponding Receptor CCR10 In The Pathogenesis Of RA
Zhenlong Chen¹, Seung-jae Kim¹, Michael V. Volin², Suncica Volkov¹, William Swedler³, Nadera J. Sweiss⁴ 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, ⁴internal medicine section of rheumatology, University of Illinois at Chicago, Chicago, IL
Background/Purpose: This study was conducted to determine the expression pattern and function of CCL28 and its corresponding receptor CCR10 in the pathogenesis of rheumatoid arthritis…
Abstract Number: 823 • 2013 ACR/ARHP Annual Meeting
Activation Of Liver X Receptors Inhibits Experimental Fibrosis By Interfering With Interleukin-6 Release From Macrophages
Christian Beyer¹, Jürgen Beer¹, Katrin Palumbo-Zerr¹, Pawel Zerr¹, Alfiya Distler¹, Clara Dees¹, Louis E. Munoz¹, Gerhard Krönke¹, Oliver Distler², Steve Anderson³, Georg A. Schett⁴ and Joerg H. W. Distler¹, ¹Department of Internal Medicine III and Institute for Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany, ²Department of Rheumatology and Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ³Lexicon Pharmaceuticals Inc., The Woodlands, TX, ⁴Dept of Medicine 3, Rheumatology and Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany
Background/Purpose: Liver X receptors (LXRs) are orphan nuclear receptors with emerging roles in metabolic and autoimmune diseases. Here, we investigated the role of LXRs in…
Abstract Number: 766 • 2013 ACR/ARHP Annual Meeting
Cholesterol Accumulation By Synovial Lining Macrophages Results In Ectopic Bone Formation During Experimental Osteoarthritis
Wouter de Munter¹, Arjen B. Blom¹, Monique M. Helsen¹, Birgitte Walgreen¹, Peter M. van Der Kraan¹, Leo A. Joosten², Wim B. van den Berg³ and Peter L. van Lent⁴, ¹Rheumatology Research & Advanced Therapeutics, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, ²Department of Medicine, Radboud University Nijmegen Medical Center, Nijmegen, Netherlands, ³Experimental Rheumatology (272), Radboud university medical center, Nijmegen, Netherlands, ⁴Rheumatology Research & Advanced Therpeutics, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands
Background/Purpose: Synovial macrophages have previously shown to play a significant role in the etiopathology of experimental collagenase-induced osteoarthritis (OA). In addition to production of pro-inflammatory…

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