Abstracts tagged "macrophages"

Abstract Number: 0927 • ACR Convergence 2024
Synovial Macrophage Heterogeneity and Dynamics in Steady Stateand Rheumatoid Arthritis Mouse Model Time Course
Jessica Maciuch¹, Yidan Wang², Tyler Therron³, Harris Perlman¹ and Deborah Winter⁴, ¹Northwestern University, Chicago, IL, ²Northwestern University, Hanover Park, IL, ³Northwestern University, Chicago, ⁴Northwestern University, Skokie, IL
Background/Purpose: Macrophages are vital contributors to both pro-inflammatory signaling and tissue repair processes involved in the pathogenesis and remission of Rheumatoid Arthritis (RA). Recent research…
Abstract Number: 2521 • ACR Convergence 2024
Clinicopathologic Associations Between Macrophage Location and Functional Profile in Giant Cell Arteritis
Michael Putman¹, Nader Khalidi², Carol Langford³, Curry Koening⁴, Christian Pagnoux⁵, David Cuthbertson⁶, Carol McAlear⁷ and Peter Merkel⁷, and the Vasculitis Clinical Research Consortium (VCRC), ¹The Medical College of Wisconsin, Milwaukee, WI, ²McMaster University, Hamilton, ON, Canada, ³Cleveland Clinic, Moreland Hills, OH, ⁴University of Texas Dell Medical School, Austin, TX, ⁵Mount Sinai Hospital, Toronto, ON, Canada, ⁶University of South Florida, Tampa, FL, ⁷University of Pennsylvania, Philadelphia, PA
Background/Purpose: Macrophages play a central role in the pathogenesis of giant cell arteritis (GCA), but few studies have correlated macrophage phenotype or topography from temporal…
Abstract Number: 0049 • ACR Convergence 2024
Inflammatory Priming by Anti-MAA Antibodies in Rheumatoid Arthritis
Marcelo Afonso¹, Jitong Sun¹, Koji Sakuraba¹, Alexandra Circiumaru², Denis Lagutkin¹, Masa Filipovic¹, Anca Catrina¹, Caroline Grönwall¹, Aase Hensvold¹ and Bence Réthi¹, ¹Karolinska Institutet, Stockholm, Sweden, ²Division for Rheumatology, Karolinska Institutet; Center for Rheumatology, Academic Specialist Center, Stockholm region, Stockholm, Sweden
Background/Purpose: We have previously shown that autoantibodies targeting malondialdehyde-acetaldehyde protein adducts (anti-MAA) in rheumatoid arthritis (RA) patients boosted osteoclast differentiation and induced bone erosion in mice…
Abstract Number: 0928 • ACR Convergence 2024
In Vitro Study of Fibroblast-Like Synoviocytes and Macrophages-Like Synoviocytes Isolated from Rheumatoid Arthritis, Psoriatic Arthritis Patients and Healthy Subjects
monia Maccaferri¹, Francesco Zambianchi², Carlo Salvarani³ and Elisa Pignatti³, ¹Azienda Ospedaliero Universitaria di Modena, Modena, Italy, ²Department of Maternal, Child and Adult Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy, ³Department of Surgery, Medicine Dentistry and Morphological Sciences with Interest in Transplant, Oncological and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
Background/Purpose: Interactions between fibroblast-like synoviocytes (FLSs) and macrophage-like synoviocytes (MLSs) are pivotal in the pathogenesis of RA and PsA. FLSs both activate and are activated…
Abstract Number: 2534 • ACR Convergence 2024
Deciphering Complement-dependent Macrophage Phenotypes in Human Rheumatoid Arthritis Using Combined Computational-experimental Single-cell Omics
Juan Vargas¹, Ian Mantel², Jun Inamo³, Nirmal Banda¹, Anna Helena Jonsson³, Kevin Wei⁴, Deepak Rao⁵, Susan Goodman⁶, Kevin Deane⁷, Jennifer Seifert⁸, Jennifer Anolik⁹, Michael Brenner¹⁰, Soumya Raychaudhuri¹¹, Trent Woodruff¹², the Accelerating Medicines Partnership (AMP) RA/SLE Network¹³, Michael Holers¹⁴, Laura Donlin¹⁵ and Fan Zhang¹⁶, ¹The University of Colorado, Aurora, CO, ²WEILL CORNELL MEDICINE, New York, NY, ³University of Colorado School of Medicine, Aurora, CO, ⁴Brigham and Women's Hospital at Harvard Medical School, Boston, MA, ⁵Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁶Hospital for Special Surgery, New York 10025, NY, ⁷University of Colorado Denver Anschutz Medical Campus, Aurora, CO, ⁸University of Colorado and Oklahoma Medical Research Foundation, Aurora, CO, ⁹University of Rochester Medical Center, Rochester, NY, ¹⁰Brigham Women's Hospital, Boston, MA, ¹¹Brigham and Women's Hospital, Boston, MA, ¹²University of Queensland, Brisbane, Australia, ¹³AMP RA/SLE consortium, Aurora, CO, ¹⁴Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, ¹⁵Hospital for Special Surgery, New York, NY, ¹⁶University of Colorado, Aurora, CO
Background/Purpose: The complement system is a major component of innate immunity and plays a vital role in experimental models of autoimmune disease pathogenesis. In patients…
Abstract Number: 0057 • ACR Convergence 2024
Flow Cytometry of Cells Within Induced Sputum from Individuals At-Risk for RA Reveals Relative Expansion of Small Macrophages
Hideto Takada¹, Brian Hattel², Marie Feser³, LauraKay Moss², Yuko Okamoto⁴, Mark Gillespie⁵, Adam Savage⁵, Troy Torgerson⁶, V. Michael Holers⁷, Kevin Deane⁸ and Kristen Demoruelle⁹, ¹Tokyo Women's Medical University, Denver, CO, ²University of Colorado Anschutz Medical Campus, Denver, CO, ³Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, ⁴Tokyo Women's Medical University Division of Rheumatology, Shinjyuku-ku, Tokyo, Japan, ⁵Allen Institute for Immunology, Seattle, WA, ⁶Allen Institute for Immunology, Enumclaw, WA, ⁷University of Colorado, Denver, CO, ⁸University of Colorado Denver Anschutz Medical Campus, Aurora, CO, ⁹University of Colorado Anschutz Medical Campus, Golden, CO
Background/Purpose: Serum elevations of ACPA in the absence of inflammatory arthritis is a well-established risk factor for the future development of clinical RA. The lung…
Abstract Number: 0966 • ACR Convergence 2024
CDDO-Me Attenuates Pro-fibrotic Activation in Macrophages and Fibroblasts in Systemic Sclerosis
Heetaek Yang¹, Chanhyuk Park², Chen-Yu Wang³, Emily Morris⁴, Karen Liby⁵, Michael Whitfield⁶ and Patricia Pioli², ¹Dartmouth College, West Lebanon, NH, ²Geisel School of Medicine at Dartmouth, Lebanon, NH, ³Dartmouth College, Lebanon, NH, ⁴Dartmouth College, Enfield, NH, ⁵Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, ⁶Geisel School of Medicine at Dartmouth, Hanover, NH
Background/Purpose: Systemic Sclerosis (SSc) is characterized by dysfunctional immune activation, oxidative stress, and fibrosis. In prior work, we have shown that SSc macrophages (MØs) have…
Abstract Number: 2547 • ACR Convergence 2024
Neurophysiological Phenotypes Are Uncoupled from Toll-like Receptor-Mediated Peripheral Disease in a Mouse Model of Neuropsychiatric Symptoms of Systemic Lupus Erythematosus
Cecilia Stumpf¹, Vanessa Rodriguez¹ and Carla Cuda², ¹Northwestern University, Chicago, ²Northwestern University, Chicago, IL
Background/Purpose: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with diverse clinical presentations, including neuropsychiatric symptoms (NPSLE). Despite being a major cause of morbidity…
Abstract Number: 0061 • ACR Convergence 2024
Comparative Transcriptional Profiling of IPF and RA-ILD Lung Tissue Demonstrates Both Overlapping and Distinct Cell-specific Signaling Pathways
Joshua Sciurba¹, Daniel Kass¹, Eleanor Valenzi², John Sembrat², Robert Lafyatis³ and Dana Ascherman⁴, ¹University of Pittsburgh School of Medicine, Pittsburgh, PA, ²University of Pittsburgh, Pittsburgh, PA, ³Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, ⁴Division of Rheumatology and Clinical Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA
Background/Purpose: Transcriptional profiling represents a powerful tool for deciphering disease-relevant pathways and deriving functional biomarkers. Given the shared demographic, genetic, and clinico-epidemiologic features between rheumatoid…
Abstract Number: 0972 • ACR Convergence 2024
Downregulated Fli1 in Scleroderma Myeloid Cells Contributes to Cardiac Fibrosis via a Galectin-3/mTOR Dependent Pathway
Fatima El adili¹, Moyo Mudhibadhi², Giovanni ligresti³, Maria Trojanowska² and Andreea Bujor³, ¹Boston Medical Center, Boston, MA, ²Boston university medical school, Boston, MA, ³Boston University, Boston, MA
Background/Purpose: Cardiac fibrosis is a common complication in Systemic sclerosis (SSc), but the pathogenesis is largely unknown. We have previously shown that monocytes isolated from…
Abstract Number: 2550 • ACR Convergence 2024
Infiltrating and Resident Macrophages in Lupus Nephritis: Scar Associated Macrophage Phagocytic Dysfunction and Fibroblast Activation
Chirag Raparia¹, Paul Hoover², Arnon Arazi³, Nir Hacohen⁴ and Anne Davidson⁵, ¹Donald and Barbara Zucker School of Medicine At Hofstra/Northwell, Shoreham, NY, ²Brigham and Women's Hospital, SWAMPSCOTT, MA, ³Feinstein Institutes for Medical Research, Melrose, MA, ⁴Broad Institute of MIT and Harvard, Boston, MA, ⁵Feinstein Institutes for Medical Research, Manhasset, NY
Background/Purpose: Lupus nephritis (LN) is driven by a heterogeneous population of renal macrophages. We have previously reported that the renal macrophage subpopulations are similar in…
Abstract Number: 0062 • ACR Convergence 2024
Pro-Fibrotic Effects of Malondialdehyde-Acetaldehyde-Adducted and/or Citrullinated Proteins on Macrophages and Human Lung Fibroblasts
Lauren Klingemann¹, Nozima Aripova¹, Nigina Aripova², Michael Duryee¹, Carlos Hunter¹, Jill Poole¹, Bryant England¹, Ted Mikuls¹ and Geoffrey Thiele¹, ¹University of Nebraska Medical Center, Omaha, NE, ²WUSTL, St. Louis, MO
Background/Purpose: Clinically evident rheumatoid arthritis-associated interstitial lung disease (RA-ILD) affects approximately 10-15% of patients with rheumatoid arthritis (RA) and accounts for the most overrepresented cause…
Abstract Number: 0973 • ACR Convergence 2024
Mechano-transduction via MRTF-A Pathway Is Required for Cytokine Release by Scleroderma Macrophages
Sandra Lopez Garces¹, Guan Hui Tricia Lim², Jorlin Liu³, Maahia Choudhary³, Juno Erin Vimalenthiran,³, Angela Tam¹, David Abraham³, Christopher Denton⁴, Bahja Ahmed Abdi¹ and Richard Stratton⁵, ¹University College London, London, United Kingdom, ²Centre for Rheumatology and Connective Tissue Diseases, University College London Medical School, Royal Free Campus, London, United Kingdom, ³UCL, London, United Kingdom, ⁴University College London, Northwood, United Kingdom, ⁵UCL, London, England, United Kingdom
Background/Purpose: In keeping with hallmark clinical evidence of stiffening and fibrotic thickening of the skin, we and others have previously demonstrated a role for the…
Abstract Number: 2593 • ACR Convergence 2024
A Long-term Synovial Tissue 3D Model Incorporating Fibroblasts, Macrophages, Endothelial Cells, and Other Immune Cells Such as Innate Lymphoid Cells Enables Animal Model-Independent Rheumatoid Arthritis Research
Miriam Bollmann¹, Oskar Landberg², Negar Ayoubzadeh², Charlotte A. Jonsson², Inger Gjertsson² and Mattias Svensson², ¹University of Gothenburg, Göteborg, Sweden, ²University of Gothenburg, Gothenburg, Sweden
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory joint disease with multiple tissues contributing to its pathology, including the synovial membrane. The RA synovial membrane…
Abstract Number: 0074 • ACR Convergence 2024
Tofacitinib Therapy Ameliorates Inflammation in a Mouse Model of Psoriasis and Arthritis by Inducing Type 2 Immunity
Maria de la Luz Garcia-Hernandez¹, Javier Rangel-Moreno¹, Ananta Paine², Angel Rangel-Garcia¹, Marissa Krantz³, Delaney Martino¹, Marc Nuzzo¹ and Christopher Ritchlin⁴, ¹University of Rochester, Rochester, NY, ²ORNA Tx, Southborough, MA, ³University of Rochester, Rochester, NY, ⁴Department of Medicine, Allergy, Immunology, and Rheumatology Division, University of Rochester Medical School, Canandaigua, NY
Background/Purpose: Psoriatic arthritis (PsA), a chronic progressive inflammatory arthritis, affects peripheral joints and causes patient disability. PsA patients also have skin plaques initiated by activation…

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