Abstracts tagged "macrophages"

Abstract Number: 2078 • ACR Convergence 2025
Neutrophil Extracellular Traps from Patients with Idiopathic Inflammatory Myopathies Induce Interferogenic Responses in Macrophages and Myeloid Dendritic Cells
Yatzil Reyna Juárez¹, Jennifer Tiaré Balderas Miranda², Beatriz Alcalá Carmona³, María José Ostos Prado⁴, karina santana⁵, Diana Gómez-Martín⁶ and Jiram Torres Ruiz⁷, ¹Instituto Politècnico Nacional, Tultitlán de Mariano Escobedo, Mexico State, Mexico, ²Universidad Nacional Autónoma de México, Coyoacán, Federal District, Mexico, ³INCMNSZ, Cdmx, Distrito Federal, Mexico, ⁴Instituto Nacional De Ciencias Médicas Y Nutrición Salvador Zubirán, Mexico City, Distrito Federal, Mexico, ⁵INCMNSZ, Ciudad de México, Federal District, Mexico, ⁶INCMNSZ, Mexico city, Federal District, Mexico, ⁷INCMNSZ, Mexico, Federal District, Mexico
Background/Purpose: Dermatomyositis (DM) and anti-synthetase syndrome (AS) are idiopathic inflammatory myopathies (IIM) with perifascicular pathology involving vasculopathy, macrophages, dendritic cells and an overexpression of interferon-stimulated…
Abstract Number: 0963 • ACR Convergence 2025
Increased expression of M2 pro-fibrotic markers in circulating monocytes and cultured monocyte-derived macrophages from systemic sclerosis patients with progressive interstitial lung disease (ILD)
Vanessa Smith¹, Stefano Soldano², Rosanna Campitiello³, Emanuele Gotelli³, Paola Montagna⁴, Tamara Vojinovic⁴, Sabrina Paolino², Carmen Pizzorni², Alberto Sulli² and Maurizio Cutolo⁵, ¹Ghent University Hospital, Gent, Belgium, ²University of Genoa, Genova, Italy, ³University of Genoa, Genoa, Liguria, Italy, ⁴University of Genoa, Genova, ⁵University of Genova, Genova, Italy
Background/Purpose: In the complex pathogenesis of systemic sclerosis (SSc), macrophages are mainly involved in mechanism of progressive tissue fibrosis of skin and internal organs, particularly…
Abstract Number: 2011 • ACR Convergence 2025
A Phase 1 placebo controlled, single (SAD) and multiple dose escalation (MAD) safety and pharmacokinetic (PK) study of a novel colchicine analogue ABP-745 in healthy volunteers (HV)
ullrich schwertschlag¹, Roy Wu², yan yang³ and William Shi⁴, ¹Atom Therapeutics, PALO ALTO, CA, ²Atom Bioscience, San Francisco, CA, ³Atom Therapeutics, Suzhou, China (People's Republic), ⁴Atom Therapeutics, Newark, CA
Background/Purpose: ABP-745 is a novel colchicine analogue in development as an anti-inflammatory agent for the treatment of acute gout and other chronic inflammatory conditions. In…
Abstract Number: 0945 • ACR Convergence 2025
Nerve Injury-Induced Protein-1 (Ninj1) Deficiency Aggravates Murine Lupus Through Modulation of Macrophage Polarization
Jorge Romo-Tena¹, Luz Blanco², Shuichiro Nakabo³, Victoria Hoffman⁴, Norio Hanata⁵, Mingzeng Zhang², Carmelo Carmona-Rivera⁵, Eduardo Patino-Martinez⁶, Dillon Claybaugh², Zu-Xi Yu² and Mariana Kaplan⁵, ¹Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ²NIH, Bethesda, MD, ³NIAMS, NIH, Bethesda, MD, ⁴Diagnostic and Research Services Branch, Division of Veterinary Resources, Office of Research Services, National Institutes of Health, Bethesda, MD, Bethesda, ⁵Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, Bethesda, MD, ⁶NIH/NIAMS, Bethesda, MD
Background/Purpose: Nerve injury-induced protein-1 (Ninj1) is an adhesion molecule that plays various roles in immune and stromal cells, including the modulation of inflammation and a…
Abstract Number: 1870 • ACR Convergence 2025
Paracrine WNT Signaling Modulates Profibrotic Macrophage Metabolic Activation in Systemic Sclerosis
emily Morris¹, Helen Jarnagin¹, Chen-Yu Wang¹, Michael Whitfield² and Patricia Pioli³, ¹Dartmouth College, Lebanon, NH, ²Geisel School of Medicine, Lebanon, NH, ³Geisel School of Medicine at Dartmouth, Lebanon, NH
Background/Purpose: An immune fibrotic axis consisting of activated macrophages (MØs) and fibroblasts has been identified in autoimmune systemic sclerosis (SSc) that drives disease across affected…
Abstract Number: 0940 • ACR Convergence 2025
Resident Macrophages Localize Near Fibroblasts and Drive Reprogramming in Lupus Nephritis Through Direct and Soluble Signaling
Chirag Raparia¹, Paul Hoover², Arnon Arazi³, Nir Hacohen⁴ and Anne Davidson¹, ¹Feinstein Institutes for Medical Research, Manhasset, NY, ²Brigham and Women's Hospital, Boston, MA, ³Feinstein Institutes for Medical Research, Acton, MA, ⁴Broad Institute of MIT Harvard, Cambridge, MA
Background/Purpose: Lupus nephritis (LN) is a severe manifestation of SLE that can progress to renal fibrosis, and eventual renal failure. In LN, tubulointerstitial inflammation and…
Abstract Number: 0036 • ACR Convergence 2024
Deep Topic Modeling Deconvolves Cell States in Spatial Transcriptomic Profiles of Rheumatoid Arthritis Synovial Tissue
Preethi Periyakoil¹, Melanie Smith², Meghana Kshirsagar³, Daniel Ramirez⁴, Edward Dicarlo⁵, Susan Goodman⁶, Laura Donlin² and Christina Leslie⁷, ¹Weill Cornell Medical College, New York, NY, ²Hospital for Special Surgery, New York, NY, ³Microsoft AI for Good, Seattle, ⁴Hospital for Special Surgery, Cartago, Costa Rica, ⁵Hospital for Special Surgery, Weill Cornell Medicine, New York, NY, ⁶Hospital for Special Surgery, New York 10025, NY, ⁷Memorial Sloan Kettering Cancer Center, New York, NY
Background/Purpose: Recent single-cell RNA sequencing (scRNA-seq) studies of the rheumatoid arthritis (RA) synovium have highlighted the heterogeneity of cell states present during active disease. It…
Abstract Number: 0920 • ACR Convergence 2024
TGF-β Activated Kinase 1 Inhibition by Pentagalloyl Glucose Inhibits NLRP3 Inflammasome Formation and Ameliorates MSU-Induced Inflammation
Paul Panipinto¹ and Salahuddin Ahmed², ¹Washington State University College of Pharmaceutical Science and Molecular Medicine, Spokane, WA, ²Washington State University, Spokane, WA
Background/Purpose: Monosodium urate (MSU)-induced inflammation is caused by the deposition of MSU crystals in the joints and periarticular tissues under conditions of hyperuricemia. These deposits…
Abstract Number: 2086 • ACR Convergence 2024
Specific Transcriptomic Profile Associated with Disease Activity in Muscle Biopsies from Patients with Sarcoid Myopathy
Iago Pinal-Fernandez¹, Nikolas Ruffer², Maria Casal-Dominguez³, katherine Pak⁴, Stefania Dell'Orso⁵, Faiza Naz⁵, Shamima Islam⁶, Gusatavo Gutierrez-Cruz⁶, Margherita Milone⁷, Albert selva-O'Callaghan⁸, jose milisenda⁹, Felix Kleefeld¹⁰, Andrew Mammen⁶, Teerin Liewluck¹¹ and Werner Stenzel¹², ¹NIAMS/National Institutes of Health, Bethesda, MD, ²Klinikum Bad Bramstedt, Hamburg, Germany, ³NIAMS, NIH, Bethesda, MD, ⁴National Institutes of Health, Bethesda, MD, ⁵National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, Bethesda, MD, ⁶NIH, Bethesda, MD, ⁷Mayo Clinic-Rochester, Rochester, MN, ⁸Systemic Autoimmune Disease Section, Vall d’Hebron Institute of Research, Barcelona, Spain, ⁹Hospital Clinic de Barcelona, Barcelona, Spain, ¹⁰Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany, Berlin, Germany, ¹¹Mayo Clinic, Rochester, MN, ¹²Charite University, Berlin, Germany
Background/Purpose: Sarcoidosis, a multisystem inflammatory disorder of unknown etiology, exhibits diverse clinical manifestations, with symptomatic musculoskeletal involvement being relatively uncommon but potentially debilitating. We conducted…
Abstract Number: 0041 • ACR Convergence 2024
Disease Activity and Serological Inflammatory Markers Are Associated with TNF-a and IL-6-Induced Osteoclasts, but Not with RANKL-Induced Osteoclasts in Peripheral Blood Monocytes from Patients with Rheumatoid Arthritis
Yokota Kazuhiro¹, Yoshimi Aizaki¹, Miyoko Sekikawa², Hiroshi Kajiyama¹, Yasuto Araki¹, Yuho Kadono², Yuji Akiyama¹ and Toshihide Mimura¹, ¹Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Saitama, Japan, Iruma-gun, Saitama, Japan, ²Department of Orthopaedic Surgery, Saitama Medical University, Saitama, Japan, Iruma-gun, Saitama, Japan
Background/Purpose: We previously reported that a combination of TNF-α and IL-6 induces mouse osteoclast (OC)-like cells and human OCs with bone resorption activity [Arthritis &…
Abstract Number: 0926 • ACR Convergence 2024
Macrophages and Nociceptor Neurons Form a Sentinel Unit Around Fenestrated Capillaries to Defend the Synovium from Systemic Challenges
Tetsuo Hasegawa and Menna Clatworthy, University of Cambridge, Cambridge, United Kingdom
Background/Purpose: A wide variety of systemic pathologies, including infectious and autoimmune diseases, are accompanied by joint pain or inflammation, often mediated by circulating immune complexes…
Abstract Number: 2506 • ACR Convergence 2024
THP1-derived Macrophage Polarization in Takayasu Arteritis – Impact of Disease Status and Therapy
João Paulo dos Santos¹, Cristina Orikaza¹, Mariana Aguiar², Gerson Keppeke³ and Alexandre de Souza⁴, ¹Universidade Federal de Sao Paulo, São Paulo, SP, Brazil, ²Rheumatology Division, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil, ³Universidad Catolica del Norte, São Paulo, Coquimbo, Brazil, ⁴UNIFESP-EPM, São Paulo, SP, Brazil
Background/Purpose: Macrophages play an important role in the pathophysiology of Takayasu arteritis (TAK) as granulomatous inflammation is typically found in affected arteries. The expression of…
Abstract Number: 0042 • ACR Convergence 2024
Modulating Inflammation and Angiogenesis in an Advanced 3D Rheumatoid Arthritis Synovial Tissue Model
Eva Philippon¹, Jan Piet van Hamburg¹, Lisanne van Rooijen¹, Gary Sims², Conny Van der Laken³ and Sander Tas⁴, ¹Amsterdam UMC, Amsterdam, Netherlands, ²Immunology Biosciences, Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, ³Amsterdam UMC - location VUMC, Amsterdam, Netherlands, ⁴Amsterdam UMC, locatie AMC, Amsterdam, Netherlands
Background/Purpose: Rheumatoid Arthritis (RA) is a progressive and systemic autoimmune disorder characterized by chronic and destructive joint inflammation. Key features of RA include synovial cell…
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…

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