Abstracts tagged "macrophages"

Abstract Number: 0669 • ACR Convergence 2020
Calcium Pyrophosphate Crystal Deposition in Gouty Tophi
Hang-Korng Ea¹, Alan Gauffenic², Quand Nguyen³, Nhu Pham³, Oceane Olivier², Vincent Frochot⁴, Dominique Bazin⁵, Nghia Le³, Caroline Marty², Agnès Ostertag², Martine Cohen-Solal¹, Jean-Denis Laredo⁶, Pascal Richette⁷ and Thomas Bardin⁸, ¹Université de Paris, INSERM UMR 1132, BIOSCAR, AP-HP, DMU Locomoteur, Paris, France, ²Université de Paris, INSERM UMR 1132, BIOSCAR, Paris, France, ³Vien Gut Medical Center and French-Vietnamese research center on gout and chronic diseases, Ho Chi Ming, Vietnam, ⁴Hôpital Tenon, Service des explorations fonctionnelles multidisciplinaires, Sorbonne université, UMR_S1155, Paris, France, ⁵Institut de Chimie Physique, Université Paris-Saclay et CNRS - UMR8000, Orsay, France, ⁶AP-HP Université de Paris, Paris, ⁷Department of Rheumatology, Lariboisière Hospital, AP-HP Université de Paris, INSERM U1132, Paris, ⁸Université de Paris, INSERM U1132 and Hôpital Lariboisièe, Paris, France, Paris, France
Background/Purpose: The coexistence of calcium pyrophosphate (CPP) and monosodium urate crystals is rarely reported in gouty tophi. We investigated CPP crystal deposits in a series…
Abstract Number: 0738 • ACR Convergence 2020
Systemic Administration of Novel Hydroxyl Dendrimers to Target Inflammation in Arthritic Tissues
Jeffrey Cleland¹, Rishi Sharma², Minghao Sun³, Santiago Appiani La Rosa³ and Rangaramanujam M. Kannan⁴, ¹Ashvattha Therapeutics, Inc, Redwood City, CA, ²Ashvattha Therapeutics, Baltimore, MD, ³Ashvattha Therapeutics, Inc, Baltimore, MD, ⁴Johns Hopkins School of Medicine, Baltimore, MD
Background/Purpose: Chronic inflammation observed in arthritis and other autoimmune disorders is mediated primarily by pro-inflammatory reactive macrophages. Systemic administration of anti-inflammatory agents does not selectively…
Abstract Number: 0787 • ACR Convergence 2020
MerTK Synovial Expression Correlates with Disease Activity and Treatment Response in Rheumatoid Arthritis Patients
Alessandra Nerviani¹, Marie-Astrid Boutet¹, Giulia Maria Ghirardi², Gloria Lliso-Ribera², Felice Rivellese¹, Myles Lewis¹, Michele Bombardieri², Frances Humby² and Costantino Pitzalis², ¹Centre for Experimental Medicine and Rheumatology, Queen Mary University of London, London, United Kingdom, ²Queen Mary University of London, London, United Kingdom
Background/Purpose: Despite valuable improvements in long-term clinical outcomes, a significant portion of rheumatoid arthritis (RA) patients still do not adequately respond to available treatments, and…
Abstract Number: 0839 • ACR Convergence 2020
Single-Cell Transcriptomics of Mouse and Human Lupus Nephritis Identifies Conserved Myeloid Populations Across Species
Paul Hoover¹, Michael Peters², David Lieb³, Rakesh Mishra⁴, Nir Hacohen² and Anne Davidson⁵, ¹Brigham and Women's Hospital, Boston, MA, ²Broad Institute, Boston, ³Broad Institute, Boston, MA, ⁴Feinstein Institute, Manhasset, NY, ⁵Northwell Health, New York
Background/Purpose: We recently identified novel immune cell states in the kidneys of lupus nephritis patients (Arazi et al, Nature Immunology 2019). To determine the similarities…
Abstract Number: 0979 • ACR Convergence 2020
The Identification of Shared and Unique Myeloid Cell States in Pre- and Post-nephritic Lupus Mouse Models, Sle.Yaa1 and NZBW
Paul Hoover¹, Michael Peters², David Lieb³, Heather Geiger⁴, Rakesh Mishra⁵, Nir Hacohen² and Anne Davidson⁶, ¹Brigham and Women's Hospital, Boston, MA, ²Broad Institute, Boston, ³Broad Institute, Boston, MA, ⁴New York Genome Center, New York, NY, ⁵Feinstein Institute, Manhasset, NY, ⁶Northwell Health, New York
Background/Purpose:Poor renal prognosis in lupus nephritis (LN) is associated with an abundance of renal macrophages and dendritic cells (DCs) but the role of these cells…
Abstract Number: 1531 • ACR Convergence 2020
Characterization of Cytokine/chemokine Profile in Patient-derived M1/ M2 Macrophages to Identify Biomarkers for Genetically-defined Systemic Autoinflammatory Diseases
Farzana Bhuyan¹, Adriana Almeida de Jesus², Kim Johnson³, Jacob Mitchell⁴, Yan Huang⁵ and Raphaela Goldbach-Mansky⁵, ¹NIH, bhetesda, MD, ²Translational Autoinflammatory Disease Section (TADS)/NIAID/NIH, Bethesda, ³NIH, NIAID, Bethesda, ⁴Translational Autoinflammatory Disease Section (TADS)/NIAID/NIH, Bethesda, MD, ⁵NIH, Bethesda
Background/Purpose: Genetic mutations in key regulatory molecules of the innate immune system cause autoinflammatory diseases through propagation of hyperinflammatory responses. Monocytes/ macrophages regulate inflammatory processes…
Abstract Number: 996 • 2019 ACR/ARP Annual Meeting
The Role of Flip in Differentiation and Survival of Synovial Tissue Resident Macrophages
Qi Huang¹, Renee Doyle ¹, Shang-Yang Chen ², Alexander Misharin ³, Deborah Winter ⁴ and Richard Pope ⁵, ¹Northwestern University Feinberg School of Medicine, Chicago, IL, ²Northwestern University, Chicago, ³Northwestern University Feinberg School of Medicine, chicago, ⁴Northwestern University Feinberg School of Medicine, Division of Rheumatology, Chicago, ⁵Northwestern University Feinberg School of Medicine, Division of Rheumatology, chicago, IL
Background/Purpose: We previously identified that under homeostatic conditions Flip was necessary for macrophage (MΦ) survival. The mechanisms responsible for the differentiation of monocyte-derived MΦs into…
Abstract Number: 1056 • 2019 ACR/ARP Annual Meeting
Profibrotic Macrophage Activation in Systemic Sclerosis Is Dependent on the Mechanosensing MRTF-A Pathway
Tricia Lim¹, Kristina Krogmannova ¹, Shiwen Xu ¹, Bahja Ahmed Abdi ², David Abraham ¹, Christopher Denton ³ and Richard Stratton ¹, ¹University College London, London, United Kingdom, ²University College London, London, ³University College London Division of Medicine, Centre for Rheumatology and Connective Tissue Diseases, London, UK, London, United Kingdom
Background/Purpose: An M2-like alternative activation state of macrophages has been linked to the pathogenesis of several fibrotic disorders, including systemic sclerosis (SSc). MRTF-A is an…
Abstract Number: 1073 • 2019 ACR/ARP Annual Meeting
Identification of Distinct Pro-Fibrotic Monocyte and Macrophage Subsets in Systemic Sclerosis
Angela Tam¹, Lauren Reinke-Breen ², Glenda Trujillo ², Shiwen Xu ¹, Christopher Denton ³, David Abraham ¹, Gabor Jarai ² and Voon Ong ⁴, ¹University College London, London, United Kingdom, ²Bristol-Myers Squibb, Pennington, ³University College London Division of Medicine, Centre for Rheumatology and Connective Tissue Diseases, London, UK, London, United Kingdom, ⁴UCL Medical School, Royal Free Campus, London
Background/Purpose: Chronic inflammation may modulate the balance of classical, intermediate and non-classical monocyte subsets (defined by CD14/CD16 expression)1. Monocytes are heterogeneous and subsets can be…
Abstract Number: 2002 • 2019 ACR/ARP Annual Meeting
Presence of the MerTK Receptor on Human Synovial Tissue Macrophages Lowers Inflammatory Cytokine Production and Activation of the MerTK+CD206+ Subpopulation Limits the Inflammatory Response of Synovial Fibroblasts
Samuel Finlay¹, Stefano Alivernini ², Aziza Elmesmari ³, Barbara Tolusso ², Luca Petricca ², Clara Di Mario ⁴, Annunziata Capacci ², Andrew Filer ⁵, Gianfranco Ferraccioli ², Iain McInnes ¹, Elisa Gremese ² and Mariola Kurowska-Stolarska ¹, ¹Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, United Kingdom, ²Division of Rheumatology - Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy, ³Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, Scotland, United Kingdom, ⁴Institute of Rheumatology - Università Cattolica del Sacro Cuore, Rome, Italy, ⁵Institute of Inflammation and Ageing College of Medical and Dental Sciences University of Birmingham, Birmingham, United Kingdom
Background/Purpose: Background: A substantial proportion of Rheumatoid Arthritis patients do not respond to treatment and only a small proportion achieve sustained disease remission. We showed…
Abstract Number: 1011 • 2018 ACR/ARHP Annual Meeting
Tissue Resident Macrophages Establish a Niche That Limits Monocyte to Macrophage Differentiation in Synovial Tissue during Homeostasis
Qi Quan Huang¹, Renee E. Doyle², Alexander Misharin³, Shang-Yang Chen⁴, Deborah R. Winter⁵ and Richard M. Pope², ¹Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ³Medicine/pulmonary, Northwestern University Feinberg School of Medicine, Chicago, IL, ⁴Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, chicago, IL, ⁵Department of Medicine Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: Monocytes and Macrophages play critical roles in immune homeostasis and host defense. Recent studies identified that macrophages are highly heterogeneous in terms of location,…
Abstract Number: 1353 • 2018 ACR/ARHP Annual Meeting
Autophagy Marker LC3 Accumulates in Immune-Mediated Necrotizing Myopathy Muscle Fibres
Margherita Giannini¹, Francesco Girolamo², Anna Lia², Angela Amati², Luigi Serlenga², Dario D'Abbicco³, Marilina Tampoia⁴, Maria Trojano² and Florenzo Iannone¹, ¹D.E.T.O., Rheumatology Unit - D.E.T.O. - University of Bari (ITALY), Bari, Italy, ²Department of Basic Medical Sciences, Neuroscience and Sense Organs, Unit of Neurophysiopathology, Policlinico Hospital, University of Bari, BARI, Italy, ³Institute of General Surgery ‘G Marinaccio’ (DETO), Policlinico Hospital, University of Bari, BARI, Italy, ⁴Laboratory of Clinical Pathology, University Hospital of Bari, BARI, Italy
Background/Purpose: To investigate the expression of autophagy marker LC3, localization of macrophages and accumulation of misfolded proteins in myofibres of immune-mediated necrotizing myopathy (IMNM) muscle…
Abstract Number: 2043 • 2018 ACR/ARHP Annual Meeting
Monocytes and Macrophages of Patients with Rheumatoid Arthritis Respond to Pathologically Increased Ionized Calcium with Proinflammatory Cytokine Production
Supriya Murthy¹, Elisabeth Jaeger¹, Sebastian Jung¹, Kathleen Friedrich², Olga Seifert¹, Christoph Baerwald¹, Matthias Pierer¹ and Manuela Rossol¹, ¹Department of Internal Medicine, Rheumatology, University of Leipzig, Leipzig, Germany, ²Department of Internal Medicine, Rheumatology, University of Leipzig, Germany, Leipzig, Germany
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease characterized by synovitis and periarticular bone erosion. Bony erosions and cell necrosis might lead to a local…
Abstract Number: 840 • 2018 ACR/ARHP Annual Meeting
The CCL21/CCR7 Axis Drives Vascular, Inflammatory and Destructive Remodeling in Rheumatoid Arthritis
Katrien Van Raemdonck^1,2, Karol Palasiewicz^1,2, Sadiq Umar^1,2 and Shiva Shahrara², ¹Jesse Brown VA Medical Center, Chicago, IL, ²Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL
Background/Purpose: The synovial tissue of rheumatoid arthritis (RA) patients exhibits abundant expression of CCL21, produced excessively by RA fibroblasts and macrophages. While CCR7 mediates CCL21-driven…
Abstract Number: 846 • 2018 ACR/ARHP Annual Meeting
CD14 Deficiency Dampens Osteoclastogenesis and Alters Bone Remodeling in a Murine Model of Osteoarthritis
Cheng Zhou^1,2, Vu Nguyen^2,3, Ryan Smalley², Nisha Sambamurthy^1,2, George R. Dodge^2,4 and Carla Scanzello^1,2, ¹Division of Rheumatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ²Translational Musculoskeletal Research Center, CMC Veterans Affairs Medical Center, Philadelphia, PA, ³University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ⁴Department of Orthopaedic Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
Background/Purpose: Pathogenesis of osteoarthritis (OA) is accompanied by chronic inflammation evidenced by macrophage infiltration into the joint. CD14, is expressed by monocyte/macrophage lineage cells, and…

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.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].