Abstracts tagged "macrophages"

Abstract Number: 0798 • ACR Convergence 2023
A Novel 3D Model of Rheumatoid Arthritis Synovial Tissue Incorporating Fibroblasts, Endothelial Cells and Macrophages
Eva Philippon¹, Lisanne van Rooijen¹, Jan Piet van Hamburg¹, Fatemeh Khodadust¹, Conny Van der Laken² and Sander Tas³, ¹Amsterdam University Medical Centers, Amsterdam, Netherlands, ²Amsterdam UMC - location VUMC, Amsterdam, Netherlands, ³Amsterdam UMC, locatie AMC, Utrecht, Netherlands
Background/Purpose: Rheumatoid Arthritis (RA) is a progressive and systemic autoimmune disorder associated with chronic and destructive inflammation of the joints. The hallmarks of RA are…
Abstract Number: 1775 • ACR Convergence 2023
The Peptidyl Arginine Deiminase Inhibitor BB-CLA Decreases the Inflammatory and Fibrotic Responses in Macrophages and Rheumatoid Arthritis Synovial Fibroblasts Exposed to Fibrinogen Modified with Malondialdehyde-Acetaldehyde Adduct and Citrulline
Jack Mordeson¹, Nozima Aripova¹, Michael Duryee¹, James O'Dell¹, Bryant England¹, Daniel Anderson¹, Ted R Mikuls² and Geoffrey Thiele¹, ¹University of Nebraska Medical Center, Omaha, NE, ²Division of Rheumatology and Immunology, University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Peptide citrullination and adduction with malondialdehyde-acetaldehyde adduct (MAA) are post-translational modifications involved in the pathogenesis of rheumatoid arthritis (RA). Anti-cyclic-citrullinated peptide antibodies are >90%…
Abstract Number: 0866 • ACR Convergence 2023
A Novel 3D-Synovium-Immune Microenvironment Mimics Macrophage-Synovial Fibroblast Interactions in Inflammatory Arthropathies
André Tiaden¹, Simone Häner Massimi¹, Ulrich Walker², Diego Kyburz³ and Stavros Giaglis¹, ¹Laboratory for Experimental Rheumatology, Department of Biomedicine, University of Basel, Basel, Switzerland, ²Basel University Hospital, Basel, Switzerland, ³University Hospital Basel, Basel, Switzerland
Background/Purpose: Autoimmunity, trauma, or infection lead to devastating arthropathies, within enormous socioeconomic impact due to its high frequency and chronicity. The development of novel treatments…
Abstract Number: 2356 • ACR Convergence 2023
A Macrophage-Specific Mechanism for Mycophenolate Mofetil in the Treatment of Systemic Sclerosis
Emily Morris, Rezvan Parvizi, Patricia Pioli and Michael Whitfield, Geisel School of Medicine at Dartmouth, Hanover, NH
Background/Purpose: Systemic Sclerosis (SSc) is a rare autoimmune connective tissue disease characterized by inflammation and fibrosis. Treatment with mycophenolate mofetil (MMF), an inhibitor of lymphocyte…
Abstract Number: 0880 • ACR Convergence 2023
CD14 Inhibition as a Potential Therapeutic in Post Traumatic OA
Kevin Burt¹, Vu Nguyen¹, Lance Murphy², De'Broski Herbert¹, Robert Mauck¹ and Carla Scanzello³, ¹University of Pennsylvania, Philadelphia, PA, ²University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ³Translational Musculoskeletal Research Center, Corp. Michael J Crescenz VA Medical Center,4Division of Rheumatology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA
Background/Purpose: Osteoarthritis (OA) is the most common joint disorder, and growing evidence has identified inflammation to be a major driver of disease progression. During disease,…
Abstract Number: 2359 • ACR Convergence 2023
Reversal of the Activation State of Pro-fibrotic CD206 Positive Macrophages by Therapeutic Peptide AUR300 in Systemic Sclerosis
Sandra Lopez¹, Bahja Ahmed Abdi¹, Linda Lei¹, Anas Al-Oweidi¹, Claire Macfadyen¹, Lydia Nagib¹, Sarah Ive¹, Anshul Kumar¹, Teresa Collins¹, Jennifer Cross², Christopher Denton¹, David Abraham¹, Clayton Yates³, Charles Garvin⁴, Henry Lopez⁴, George Martin⁵ and Richard Stratton¹, ¹University College London, London, United Kingdom, ²Aurinia Pharmaceuticals Inc., Rockford, MD, ³Tuskegee University, Tuskegee, AL, ⁴Riptide Bioscience Inc., Valejo, CA, ⁵Riptide Bioscience Inc., Bethesda, MD
Background/Purpose: A spectrum of macrophage activation is seen in human pathologic conditions; M2-like CD206 positive macrophages are pro-fibrotic and proresolution, while M1-like macrophages are proinflammatory,…
Abstract Number: 2164 • ACR Convergence 2022
Profibrotic Alveolar Macrophages as a Potential Biomarker in Systemic Sclerosis-associated Interstitial Lung Disease
Nikolay Markov¹, Karolina Senkow¹, Anthony Esposito², Jonathan Puchalski³, Mridu Gulati³, Erica Herzog³, Danielle Antin-Ozerkis⁴, Mary Carns⁵, Alyssa Williams⁶, Nic Page⁶, Alexander Misharin¹ and Monique Hinchcliff⁷, ¹Northwestern University Feinberg School of Medicine, Chicago, IL, ²Brigham and Women's Hospital, Department of Medicine, Boston, MA, ³Yale School of Medicine, New Haven, CT, ⁴Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT, ⁵Northwestern University Division of Rheumatology, Chicago, IL, ⁶Yale University, New Haven, CT, ⁷Yale School of Medicine, Westport, CT
Background/Purpose: Interstitial lung disease (ILD) is a leading cause of death in patients with systemic sclerosis (SSc). Previously, profibrotic monocyte-derived alveolar macrophages (MoAM) expressing (SPP1,…
Abstract Number: 0825 • ACR Convergence 2022
Predicting Outcomes in Macrophage Activation Syndrome (MAS): A Retrospective Study on 43 Consecutive Patients with MAS
Sumanth Madan¹, Suma Balan¹, MITHUN CHALAKKARAYIL BHAGAVALDAS², Spoorthy DR¹, Sudeep Rath¹, Joslyn Thattil¹, Amisha Shahul¹ and Niveditha Kartha¹, ¹Amrita Institute of Medical Sciences, Kochi, India, ²Amrita Institute of Medical Sciences, Muvattupuzha, India
Background/Purpose: Macrophage activation syndrome is a diagnosis along the spectrum of hemophagocytic lymphohistiocytosis (HLH) spectrum disorders. It is a rare, yet potentially fatal disease characterized…
Abstract Number: 2261 • ACR Convergence 2022
Pain in Osteoarthritis – Identification of GPR34 and GPR150 as Novel Targets in the Dorsal Root Ganglia
Matthew Wood¹, Terese Geraghty², David Thomas³, Alia Obeidat¹, Jun Li², Richard Miller⁴, Rachel Miller¹ and Anne-Marie Malfait⁵, ¹Rush University Medical Center, Chicago, IL, ²Rush University, Chicago, IL, ³University of Minnesota Internal Medicine Residency, St. Paul, MN, ⁴Northwestern University, Evaston, IL, ⁵Rush University, Oak Park, IL
Background/Purpose: Osteoarthritis (OA) is a leading cause of chronic pain worldwide. Currently available pain-alleviating therapies are often inadequate and associated with serious adverse effects, resulting…
Abstract Number: 1119 • ACR Convergence 2022
Investigating Macrophage Heterogeneity in the Esophagus and Lungs of SSc Patients
Hadijat Makinde¹, Carla Cuda¹, Miranda Gurra¹, Mary Carns², Kathleen Aren², Gaurav Gadhvi¹, Salina Dominguez¹, Jane Dematte³, Darren Brenner⁴, John Pandolfino⁵, G. R. Scott Budinger⁴, Deborah Winter⁶ and Harris Perlman¹, ¹Northwestern University, Chicago, IL, ²Northwestern University Division of Rheumatology, Chicago, IL, ³Northwestern University, Elmhurst, IL, ⁴Northwestern University Feinberg School of Medicine, Chicago, IL, ⁵Northwestern University, Feinberg School of Medicine, Wilmette, IL, ⁶Northwestern University, Skokie, IL
Background/Purpose: Our group has made important contributions to an emerging understanding of monocytes and macrophages as central to SSc pathogenesis. There are numerous studies that…
Abstract Number: 1166 • ACR Convergence 2022
Scleroderma Fibroblasts Induce Alternative Macrophage Activation via an ERK1/2-dependent Mechanism
Taha Dinc¹, Juan-Pablo Zertuche¹, Fatima El Adili², Maria Trojanowska³ and Andreea Bujor³, ¹Boston University School of Medicine, Boston, MA, ²Boston University School of Medicine, Revere, MA, ³Boston University, Boston, MA
Background/Purpose: Activation of the innate immune system in systemic sclerosis (SSc), with an increased number of profibrotic/alternatively-activated macrophages in affected tissues, is an important aspect…
Abstract Number: 1168 • ACR Convergence 2022
Dermal Fibroblast-derived Exosomes Drive Profibrotic Macrophage Activation in Systemic Sclerosis
Heetaek Yang¹, Rajan Bhandari¹, Noelle Kosarek², Jonathan Garlick³, Michael Whitfield⁴ and Patricia Pioli¹, ¹Geisel School of Medicine at Dartmouth, Lebanon, NH, ²Dartmouth Geisel School of Medicine, Lebanon, NH, ³Tufts University School of Dental Medicine, Boston, MA, ⁴Geisel School of Medicine, Lebanon, NH
Background/Purpose: Macrophage (MØ) activation derives from coordination of signals received in local tissue microenvironments. In prior studies, we demonstrated that cocultured MØs and fibroblasts from…
Abstract Number: 1169 • ACR Convergence 2022
Downregulated Fli1 in Systemic Sclerosis Myeloid Cells Contributes to Enhanced Transendothelial Migration
Pablo Weilg Espejo¹, Taha Dinc², Fatima El Adili³, Maria Trojanowska⁴ and Andreea Bujor⁴, ¹Boston Medical Center, Chelsea, MA, ²Boston University School of Medicine, Boston, MA, ³Boston University School of Medicine, Revere, MA, ⁴Boston University, Boston, MA
Background/Purpose: The mononuclear phagocytic system in Systemic Sclerosis (SSc) is central to fibrogenesis and may contribute to fibrosis via enhanced monocyte migration into injured tissues…
Abstract Number: 1172 • ACR Convergence 2022
Transcription Analysis of Macrophages Reveals Important Changes Induced by Systemic Sclerosis Fibroblasts
Juan-Pablo Zertuche¹, Taha Dinc², Fatima El Adili³, Giovanni Ligresti¹ and Andreea Bujor¹, ¹Boston University, Boston, MA, ²Boston University School of Medicine, Boston, MA, ³Boston University School of Medicine, Revere, MA
Background/Purpose: Systemic Sclerosis (SSc) is an autoimmune connective tissue disease characterized by immune system activation, endothelial dysfunction and widespread tissue fibrosis. Activation of the monocyte/macrophage…
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…

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