Abstracts tagged "macrophages"

Abstract Number: 1763 • ACR Convergence 2025
Spatial Organization and Function of Disease-Associated Macrophages in Lupus Nephritis: Insights from Cross-Species Analyses
Paul Hoover¹, Chirag Raparia², Rollin Leavitt³, Nir Hacohen⁴, Arnon Arazi⁵ and Anne Davidson², ¹Brigham and Women's Hospital, Boston, MA, ²Feinstein Institutes for Medical Research, Manhasset, NY, ³Broad Institute, Boston, MA, ⁴Broad Institute, Cambridge, MA, ⁵The Feinstein Institutes for Medical Research, Manhasset
Background/Purpose: Myeloid cells are linked to kidney injury in lupus nephritis (LN) but lack targeted therapies, underscoring the need to better understand myeloid biology in…
Abstract Number: 0812 • ACR Convergence 2025
Anti-CD206 CAR T Cell Immunotherapy Mitigates Dermal Pathology in Systemic Sclerosis
Chanhyuk Park¹, Helen Jarnagin², Asmaa Mohamed³, Noelle Kosarek⁴, Owen Wilkins¹, Fred Kolling¹, Yina Huang¹, Michael Whitfield⁵ and Patricia Pioli¹, ¹Geisel School of Medicine at Dartmouth, Lebanon, NH, ²Dartmouth College, Lebanon, NH, ³Geisel School of Medicine at Dartmouth, Charlottesville, VA, ⁴Dartmouth Geisel School of Medicine, Lebanon, NH, ⁵Geisel School of Medicine, Lebanon, NH
Background/Purpose: Systemic sclerosis (SSc) is a progressive, chronic multi-system disorder of unknown etiology that is characterized by immune dysfunction, fibrosis, and loss of dermal white…
Abstract Number: 1650 • ACR Convergence 2025
Malondialdehyde-Acetaldehyde and Citrulline Modified Proteins are Overexpressed in Cardiac Tissues in Rheumatoid Arthritis-Associated Heart Failure and Mediate Endothelial Cell Dysfunction
Hannah Johnson¹, Wenxian Zhou², Michael Duryee¹, Engle Sharp¹, Kimberley Sinanan¹, Carlos Hunter¹, Tate Johnson¹, Mabruka Alfaidi¹, Daniel Anderson³, Geoffrey Thiele¹ and Ted Mikuls¹, ¹University of Nebraska Medical Center, Omaha, NE, ²University of Nebraska Medical Center, Bellevue, NE, ^30587964, Durham, NC
Background/Purpose: Previous reports show that malondialdehyde-acetaldehyde (MAA) adducts are overexpressed in RA, especially in joint/lung tissues, and that they colocalize with citrulline (CIT). This is…
Abstract Number: 0747 • ACR Convergence 2025
Patterns of Macrophage Polarization Induced by Serum from Patients with Giant Cell Arteritis and Takayasu’s Arteritis
Irene Carrión-Barberà¹, Ryan D. Stultz², David Cuthbertson³, Nader Khalidi⁴, Curry Koening⁵, Carol Langford⁶, Carol McAlear⁷, Paul Monach⁸, Larry Moreland⁹, Christian Pagnoux¹⁰, Philip Seo¹¹, Kenneth Warrington¹², Peter Merkel⁷ and Christian Lood¹³, ¹Department of Rheumatology. Hospital del Mar, Barcelona, Spain, ²University of Washington, Division of Rheumatology, Seattle, WA, ³University of South Florida, Tampa, ⁴Department of Medicine, McMaster University and St. Joseph’s Healthcare, Hamilton, Canada, ⁵University of Texas Dell Medical School, Austin, TX, ⁶Cleveland Clinic, Moreland Hills, OH, ⁷University of Pennsylvania, Philadelphia, PA, ⁸VA Boston Healthcare System, Boston, MA, ⁹University of Colorado, Denver, CO, ¹⁰Mount Sinai Hospital, University Health Network, Toronto, and Canadian Vasculitis Research Network (CanVasc), Toronto, ON, Canada, ¹¹Johns Hopkins University, Baltimore, MD, ¹²Mayo Clinic, ROCHESTER, MN, ¹³University of Washington, Division of Rheumatology, Seattle
Background/Purpose: Macrophages play a central role in the pathogenesis of large-vessel vasculitides, including giant cell arteritis (GCA) and Takayasu’s arteritis (TAK). Characterizing patterns of macrophage…
Abstract Number: 1174 • ACR Convergence 2025
High Prevalence of Autoimmunity in Rosai Dorfman Disease: A Multinational Study
Mitali Sen¹, Gordon Ruan², Samuel Reynolds³, Haadi Ali³, Xi Yang³, Diana Morlote¹, Aishwarya Ravindran¹, Lauren Shea¹, Matthew Koster⁴, Jithma Abeykoon², Hind Salama⁵, Xin-Xin Cao⁶, Asra Ahmed³, Ronald Go² and Gaurav Goyal¹, ¹University of Alabama at Birmingham, Birmingham, AL, ²Mayo Clinic, Rochester, ³University of Michigan, Michigan, ⁴Mayo Clinic, Rochester, MN, ⁵National Guard Health Affairs, Riyadh, Saudi Arabia, ⁶Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China (People's Republic)
Background/Purpose: Rosai-Dorfman Disease (RDD), formerly known as sinus histiocytosis with massive lymphadenopathy, was initially thought to be inflammatory or autoimmune in nature. The discovery of…
Abstract Number: 0080 • ACR Convergence 2025
The Role of DICAM in Modulating Macrophage Differentiation and Inflammatory Responses via αvβ3 Integrin Signaling in Rheumatoid Arthritis
Hanna Lee¹, Youn-Kwan Jung², Sang-il Lee³, Yun-Hong Cheon⁴ and Hyunjin Lim⁴, ¹Division of Rheumatology, Department of Internal Medicine, Gyeongsang National University Hospital, Changwon, Changwon-si, Kyongsang-namdo, Republic of Korea, ²Institute of Medical Science, Gyeongsang National University, Jinju, Jinju, Kyongsang-namdo, Republic of Korea, ³Department of Internal Medicine and Institute of Medical Science, College of Medicine, Gyeongsang National University and Hospital, Jinju, Republic of Korea, ⁴Division of Rheumatology, Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Jinju, Kyongsang-namdo, Republic of Korea
Background/Purpose: Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by persistent joint inflammation, cartilage destruction, and bone erosion. Among the various immune cells involved…
Abstract Number: 0096 • ACR Convergence 2024
Simultaneous Contribution of Brain-Intrinsic and Peripheral Disease Mechanisms to Neuropsychiatric Symptoms of Systemic Lupus Erythematosus (NPSLE)
Hadijat Makinde¹, Mohammad Khan¹, Cecilia Stumpf², Yidan Wang³, Tyler Therron², Margaret Goldman², Deborah Winter⁴ and Carla Cuda¹, ¹Northwestern University, Chicago, IL, ²Northwestern University, Chicago, ³Northwestern University, Hanover Park, IL, ⁴Northwestern University, Skokie, IL
Background/Purpose: While NPSLE are among the least understood complications, increasing evidence points to microglia, a brain-resident innate immune cell population, as a driver of disease.…
Abstract Number: 1643 • ACR Convergence 2024
Single Nuclei Multiome and Spatial Transcriptomic Analysis of Early, Untreated SSc Skin Identifies Signaling Interactions Between Macrophages and Fibroblasts
Helen Jarnagin¹, Dillon Popovich², Rezvan Parvizi³, Rosemary Gedert⁴, Lam C. Tsoi⁵, Rachael Wasikowski⁵, Zhiyun Gong¹, Madeline Morrisson⁶, Laurent Perreard⁷, Fred Kolling IV⁷, Dinesh Khanna⁴, Johann Gudjonsson⁴ and Michael Whitfield³, ¹Dartmouth College, Lebanon, NH, ²Dartmouth College, West Lebanon, NH, ³Geisel School of Medicine at Dartmouth, Hanover, NH, ⁴University of Michigan, Ann Arbor, MI, ⁵Michigan, Dept. of Dermatology, Ann Arbor, MI, ⁶Geisel School of Medicine at Dartmouth College, Hanover, NH, ⁷Geisel School of Medicine, Dartmouth College, Lebanon
Background/Purpose: We generated a vertically integrated dataset on treatment naïve patients with dcSSc (diffuse Systemic Sclerosis) skin that includes bulk RNA-seq, single nuclei multiome, and…
Abstract Number: 2645 • ACR Convergence 2024
Human NCF1-p.R90H Variant Promotes Pulmonary Fibrosis in the Bleomycin-induced Mouse Model and Systemic Sclerosis Patients via Expansion of SPP1+Monocytes-derived Macrophages
Xinran Yuan¹, Xiaodong Qin², Kenji Takemoto¹, Jian Zhao¹, Matthew Sanderson¹, Xue Xu¹, Kristi L Helke³, Bethany Wolf⁴, Joel Guthridge⁵, Judith A James⁶, Xiaodong Zhou⁷, Shervin Assassi⁸, Carol Feghali-Bostwick⁴, Dandan Wang⁹, Lingyun Sun¹⁰ and Betty P Tsao¹, ¹Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, SC, ²Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China (People's Republic), ³Department of Comparative Medicine, Medical University of South Carolina, Charleston, SC, ⁴Medical University of South Carolina, Charleston, SC, ⁵Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁶Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁷Division of Rheumatology, University of Texas Health Science Center at Houston, Houston, TX, ⁸UTHealth Houston Division of Rheumatology, Houston, TX, ⁹Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical Schoo, Nanjing, Jiangsu, China (People's Republic), ¹⁰Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China (People's Republic)
Background/Purpose: We previously identified a systemic lupus erythematosus (SLE) causal risk variant, p.Arg90His (p.R90H, rs201802880) substitution encoded in neutrophil cytosolic factor 1 (NCF1), an essential component…
Abstract Number: 0263 • ACR Convergence 2024
Characteristics and Coinfections of Diffuse Alveolar Hemorrhage in Rheumatic Patients
Eduardo Briones-García¹, Shaul Navarro-Lara², Marco A Ortiz-Bustamante², Iris Paola García Herrera³, Carla M Roman-Montes² and Guillermo A Guaracha-Basañez⁴, ¹Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán. Immunology and Rheumatology Department., Ciudad de México, Distrito Federal, Mexico, ²Departamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador-Zubirán., México city, Mexico, ³Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico, ⁴Instituto Nacional de Ciencias Medicas y Nutricion “Salvador Zubirán”, Mexico City, Distrito Federal, Mexico
Background/Purpose: Diffuse alveolar hemorrhage (DAH) is a severe respiratory complication observed in certain rheumatic diseases, such as systemic lupus erythematosus (SLE), ANCA-associated vasculitides (AAV), and…
Abstract Number: 1686 • ACR Convergence 2024
Urine Proteomics in Class II Lupus Nephritis Reveals Immune Activation and Pro-Fibrotic Signatures
Jasmine Shwetar¹, Jill Buyon², Michelle Petri³, Kelly Ruggles⁴ and Andrea Fava⁵, ¹New York School of Medicine, Ann Arbor, MI, ²NYU Grossman School of Medicine, New York, NY, ³Johns Hopkins University School of Medicine, Timonium, MD, ⁴NYU Grossman School of Medicine, Brooklyn, NY, ⁵Johns Hopkins University, Baltimore, MD
Background/Purpose: Lupus nephritis (LN) is a pathologically diverse autoimmune disease that can lead to end-stage kidney disease and mortality. Although Class II LN is considered…
Abstract Number: 0279 • ACR Convergence 2024
Macrophage Intracellular Fates of Monosodium Urate and Calcium Pyrophosphate Crystals: Phagocytosis, Exchanged/expulsion and Dissolution of Crystals
Charles Leroy¹, Nghia Pham², François Brial³, Brenda Kischkel⁴, gwénaêlle Jayat⁵, Elena Ishow⁶, Christèle Combes⁷, Leo Joosten⁴, Augustin Latourte⁸, Pascal Richette⁹ and Hang-Korng Ea¹⁰, ¹Inserm 1132 / Université Paris Cité, levallois-perret, France, ²INSERM 1132, BIOSCAR, Lariboisière hospital, Paris, France, ³Inserm 1132/ Université Paris Cité, Paris, France, ⁴Radboudumc, Nijmegen, Netherlands, ⁵Université Paris cité / Inserm 1132, paris, France, ⁶Université de Nantes / Ceisam, Nantes, France, ⁷INP-ENSIACET, Toulouse, France, ⁸AP-HP, Paris, France, ⁹Lariboisière Hospital, Paris, France, ¹⁰Université Paris Cité, INSERM UMR 1132 BIOSCAR, Paris, France
Background/Purpose: Gout, due to the presence of monosodium urate crystals (MSU) and calcium pyrophosphate (CPP) crystal deposition disease are both responsible for recurrent inflammation flares.…
Abstract Number: 1702 • ACR Convergence 2024
Placental Developmental Defects in a Humanized-TLR8 Mouse Model of Spontaneous Anti-Phospholipid Antibody Induced Pregnancy Loss
Yunwei Xia¹, Naomi I. Maria², Zhengzi Yi³, Chirag Raparia⁴, Gayathri Konanur Gopikrishna¹, Weijia Zhang³ and Anne Davidson², ¹Feinstein Institutes for Medical Research, Manhasset, ²Feinstein Institutes for Medical Research, Manhasset, NY, ³Mt. Sinai School of Medicine, New York, NY, ⁴Donald and Barbara Zucker School of Medicine At Hofstra/Northwell, Shoreham, NY
Background/Purpose: Antiphospholipid antibodies (aPL) confer a high risk for adverse pregnancy outcomes, especially in women with SLE. aPLs can induce pro-inflammatory signaling via TLR8 receptors,…
Abstract Number: 0746 • ACR Convergence 2024
Single-cell RNA-Seq Analysis Reveals Distinct Compositional Characterizations and Transcriptomic Profiles of Macrophages in Takayasu’s Arteritis
Lihong du¹, Chenglong Fang², shang Gao³, zuoguan Chen³ and Yongjun Li³, ¹Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, China, ²Department of Rheumatology, Second Affiliated Hospital of Fujian Medical University, Quanzhou, China (People's Republic), ³Department of Vascular Surgery, Beijing Hospital, National Center of Gerontology, Beijing, China
Background/Purpose: Macrophages play key roles in the pathogenesis of various inflammatory vascular diseases, such as Takayasu’s arteritis (TAK) and atherosclerosis. However, limited data on the…
Abstract Number: 1793 • ACR Convergence 2024
SLE Patient Serum and SLE-associated Danger Signals Impair Efferocytosis in Human Macrophages
Jessica Shannon and Rafael de Queiroz Prado, AstraZeneca, Gaithersburg, MD
Background/Purpose: Efficient clearance of apoptotic cells, known as efferocytosis, plays a pivotal role in maintaining self-tolerance. Dysfunction in efferocytosis is implicated in the pathogenesis of…

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