Abstracts tagged "macrophages"

Abstract Number: 0028 • ACR Convergence 2022
Microenvironmental Stiffness Modulates Macrophage Responsiveness and Communication with Mesenchymal Stem Cells
Sung Yeon Kim, Carla Scanzello, Robert Mauck and Edward Bonnevie, University of Pennsylvania, Philadelphia, PA
Background/Purpose: The synovium envelopes the diarthodial joint and is composed of fibroblast-like synoviocytes (FLS) and macrophage-like synoviocytes (MLS). In healthy joints, the synovial cavity maintains…
Abstract Number: 1174 • ACR Convergence 2022
Cellular Immunotherapy for Systemic Sclerosis
Chanhyuk Park¹, Rajan Bhandari², Jason Gunn³, Timothy Sullivan², Gretel Torres², Joana Murad³, Michael Whitfield⁴ and Patricia Pioli², ¹Geisel School of Medicine at Dartmouth, West Lebanon, NH, ²Geisel School of Medicine at Dartmouth, Lebanon, NH, ³Celdara Medical, Lebanon, ⁴Geisel School of Medicine, Lebanon, NH
Background/Purpose: Pro-fibrotic macrophages (MØs) are implicated in the pathogenesis of systemic sclerosis (SSc). In prior work, we and others have shown that MØs derived from…
Abstract Number: 0148 • ACR Convergence 2022
Dysferlin Associated Autoinflammatory Disease Causing Systemic Inflammation and Sterile Lung Abcesses Through Impaired Efferocytosis
Farzana Bhuyan¹, Adriana Almeida de Jesus², Clinton Bradfield³, Mohammad Arif Rahman⁴, Andre Rastegar³, sundar ganesan³, Sachin Gaurav³, Sara Alehashemi³, Ronit Herzog⁵, Steven Holland³, Deborah Consilini⁶, Iain Fraser³ and Raphaela Goldbach-Mansky⁷, ¹National Institutes of Health, Bethesda, MD, ²NIAID, NIH, Silver Spring, MD, ³NIAID, Bethesda, MD, ⁴NCI, Bethesda, MD, ⁵Langone Medical Center, New York, NY, ⁶Nemours Children's Hospital-Delaware, Wilmington, DE, ⁷NIAID, NIH, Rockville
Background/Purpose: Using whole exome sequencing (WES), we identified a de novo mutation in DYSF encoding dysferlin in 2 unrelated patients with systemic inflammation and sterile…
Abstract Number: 1177 • ACR Convergence 2022
Identification of a New Type of Pro-phagocytic Macrophages in Patients with Systemic Sclerosis
Amela Hukara¹, Tracy Tabib², Michal Rudnik¹, Oliver Distler³, Przemyslaw Blyszczuk¹, Robert Lafyatis² and Gabriela Kania¹, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland, ²Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, ³Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
Background/Purpose: Phagocytosis is a crucial cellular process, which under certain immuno-pathological conditions can be activated in macrophages in an uncontrolled manner. Biomarker studies have implicated…
Abstract Number: 0302 • ACR Convergence 2021
Loss of TAM Receptor Mer Contributes to Sjögren’s Syndrome–like Disease in Mice
Richard Witas and Cuong Nguyen, University of Florida, Gainesville, FL
Background/Purpose: Sjögren’s syndrome (SjS) is a chronic autoimmune disease primarily involving the exocrine glands where the involvement of the innate immune system is largely uncharacterized.…
Abstract Number: 0526 • ACR Convergence 2021
Transcriptional Factor Profiling Denotes Specific Synovial Macrophage Heterogeneity
Deborah Winter¹, Carla Cuda², Shang-Yang Chen², Anna Montgomery³, Salina Dominguez², Gaurav Gadhvi² and Harris Perlman², ¹Northwestern University Division of Rheumatology, Chicago, IL, ²Northwestern University, Chicago, IL, ³UCL, Chicago, IL
Background/Purpose: Macrophages are critical to the pathogenesis of rheumatoid arthritis(RA), but several distinct macrophage subpopulations co-exist in the synovium of joints. In steady-state, tissue-resident macrophages…
Abstract Number: 0540 • ACR Convergence 2021
Behavioral Deficits May Precede Influx of Brain-Infiltrating Macrophages in Neuropsychiatric Symptoms of Systemic Lupus Erythematosus
Hadijat Makinde, Miranda Gurra, Yidan Wang, Sara Radecki and Carla Cuda, Northwestern University, Chicago, IL
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex autoimmune disease that affects many end organs including the brain. Despite a prevalence of over 50% in…
Abstract Number: 0556 • ACR Convergence 2021
Investigating the Heterogeneity of Skin Macrophages in Systemic Scleroderma
Hadijat Makinde¹, Salina Dominguez¹, Monique Hinchcliff², Deborah Winter³ and Harris Perlman¹, ¹Northwestern University, Chicago, IL, ²Yale School of Medicine, Westport, CT, ³Northwestern University Division of Rheumatology, Chicago, IL
Background/Purpose: The etiology and pathogenesis of systemic sclerosis (SSc) are poorly understood; however, an increasing body of evidence supports an early inflammatory phase that precedes…
Abstract Number: 1000 • ACR Convergence 2021
Molecular Mechanism of Inhibition of CD38 in Attenuation of Monosodium Urate Crystal-induced Inflammatory Responses in Macrophages
Huaping Qin¹, Patricia Oliveira¹, Tiffany Yan¹, Robert Terkeltaub² and Ru Liu Bryan³, ¹University of California San Diego, La Jolla, CA, ²VA/UCSD, San Diego, CA, ³University of California San Diego and VASDHS, San Diego, CA
Background/Purpose: CD38 can function as a degrading enzyme of nicotinamide adenine dinucleotide (NAD), a critical metabolic intermediate serving as enzyme cofactor in redox reactions and…
Abstract Number: 1001 • ACR Convergence 2021
Exosomes Mediate a Cooperative Mechanism of Macrophage/Fibroblast Activation in Systemic Sclerosis
Rajan Bhandari¹, Heetaek Yang², Noelle Kosarek³, Michael Whitfield⁴ and Patricia Pioli¹, ¹Geisel School of Medicine at Dartmouth, Lebanon, NH, ²Geisel School of Medicine, Hanover, NH, ³Dartmouth Geisel School of Medicine, Hartford, VT, ⁴Geisel School of Medicine, Lebanon, NH
Background/Purpose: Prior work demonstrates that macrophages (MØs) from patients with Systemic Sclerosis (SSc) produce fibrotic and pro-inflammatory mediators and that cocultured MØs and SSc fibroblasts…
Abstract Number: 1003 • ACR Convergence 2021
Significant Enrichment of Pathogenic CD206+CD163+ Macrophages in Rheumatoid Arthritis Synovial Tissue with Distinct Transcriptional Signatures
Megan Hanlon¹, Mary Canavan², Nuno Neto³, Qingxuan Song⁴, Phil Gallagher⁵, Ronan Mullan⁶, Conor Hurson⁷, Barry Moran³, Michael Monaghan³, Sunil Nagpal⁸, Douglas Veale⁹ and Ursula Fearon³, ¹Molecular Rheumatology, Dublin, Ireland, ²Trinity College, Santry, Ireland, ³Trinity College Dublin, Dublin, Ireland, ⁴Janssen Research & Development LLC, Spring House, PA, ⁵St Vincent's Hospital, Dublin, Ireland, ⁶Tallaght University Hospital, Dublin, Ireland, ⁷St Vincents University Hospital, Dublin, Ireland, ⁸Janssen Research, Collegeville, PA, ⁹University College Dublin, Dublin, Ireland
Background/Purpose: Synovial tissue macrophages are an exquisitely plastic pool of innate cells that play a key role in RA disease progression. However, the precise nature,…
Abstract Number: 1004 • ACR Convergence 2021
Manipulation of B7 Family Member Expression Demonstrates Synovial Macrophage Plasticity and Possible Future Targets for Treatment of Rheumatoid Arthritis
Annabelle Small¹, Katie Williams², Antonio Ferrante³, Malcolm Smith², Susanna Proudman⁴, Helen Weedon¹ and Mihir Wechalekar⁵, ¹Flinders University, Bedford Park, Australia, ²Flinders University, Adelaide, Australia, ³SA Pathology; University of Adelaide, Adelaide, Australia, ⁴University of Adelaide, Medindie, Australia, ⁵Flinders Medical Centre, Southern Adelaide Local Health Network, Bedford Park, Australia
Background/Purpose: Infiltration of monocyte-derived macrophages into the synovial tissue (ST) is a hallmark of rheumatoid arthritis (RA). These infiltrating cells lead to inflammation, local joint…
Abstract Number: 1478 • ACR Convergence 2021
An Orphan Receptor and Osteoarthritis: Mouse Gpr34 Expression in Dorsal Root Ganglia After Partial Meniscectomy
David Thomas¹, Terese Geraghty², Alia Obeidat², Jun Li², Rachel Miller² and Anne-Marie Malfait³, ¹University of Minnesota Internal Medicine Residency, St. Paul, MN, ²Rush University Medical Center, Chicago, IL, ³Rush University, Chicago, IL
Background/Purpose: Osteoarthritis (OA) is one of the leading causes of musculoskeletal pain and disability. Worldwide, an estimated 303 million patients have clinically diagnosed OA, with…
Abstract Number: 1498 • ACR Convergence 2021
Platelet Secreted LGALS3BP Induces a Pro-inflammatory Phenotype in Systemic Lupus Erythematosus
Hanane EL Bannoudi¹, MacIntosh Cornwell², Elliot Luttrell-Williams², Alexis Engel³, Christina Rolling¹, Peter Izmirly⁴, H. Michael Belmont⁵, Kelly Ruggles², Robert Clancy⁶, Jill Buyon⁵ and Jeffrey Berger², ¹NYU Langone Health, New York, NY, ²New York University, New York, NY, ³NYU Langone Health, New Yok, NY, ⁴New York University School of Medicine, New York, NY, ⁵NYU School of Medicine, New York, NY, ⁶NYU Grossman School of Medicine, New York, NY
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a complex chronic heterogeneous autoimmune disease, which increases the risk of atherothrombosis. In addition to their well described role…
Abstract Number: 1575 • ACR Convergence 2021
Urate Crystals Regulate a Distinct JNK-Dependent Metabolic and Inflammatory Response
Anyan Cheng¹, Isidoro Cobo¹, Jessica Murillo Saich¹, Roxana Coras², Alyssa Torres³, Addison Lana¹, Johannes Schlachetzki¹, Ru Liu Bryan⁴, Robert Terkeltaub⁵, Elsa Sanchez-Lopez³, Christopher Glass¹ and Monica Guma⁶, ¹University of California San Diego, La Jolla, CA, ²University of California San Diego/Department of Medicine, Autonomous University of Barcelona, San Diego, CA, ³University of California San Diego, San Diego, CA, ⁴University of California San Diego and VASDHS, San Diego, CA, ⁵VA/UCSD, San Diego, CA, ⁶University of California San Diego/San Diego VA Healthcare Service/Department of Medicine, Autonomous University of Barcelona, La Jolla, CA
Background/Purpose: Although metabolic reprograming and its regulation in macrophages after TLR activation is well established, little is known about the regulation and the role of…

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