Abstracts Archive - Page 772 of 2607 - ACR Meeting Abstracts

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: 1005 • ACR Convergence 2021
CD209/CD14+ Dendritic Cells Characterization in Rheumatoid and Psoriatic Arthritis Patients: Activation, Synovial Infiltration and Therapeutic Targeting
Viviana Marzaioli¹, Mary Canavan², Achilleas Floudas³, Keelin Flynn⁴, Ronan Mullan⁵, Douglas Veale⁶ and Ursula Fearon⁷, ¹Trinity College Dublin and University College Dublin, Dublin, Ireland, ²Trinity College, Santry, Ireland, ³Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Ireland, ⁴The Centre for Arthritis and Rheumatic Disease, EULAR Centre of Excellence, St. Vincent’s University Hospital and University College Dublin, Ireland, Dublin, Ireland, ⁵Tallaght University Hospital, Dublin, Ireland, ⁶University College Dublin, Dublin, Ireland, ⁷Trinity College Dublin, Dublin, Ireland
Background/Purpose: Dendritic cells (DCs) are a heterogeneous population of professional antigen-presenting cells which are at the interface between innate and adaptive immunity. A specific subset…
Abstract Number: 1006 • ACR Convergence 2021
MAA Modified and/or Citrullinated Proteins Stimulate Macrophages and Human Fibroblast-Like Synoviocytes to Increase the Secretion/Expression of Fractalkine Ligand (CX3CL1) and Fractalkine Receptor (CX3CR1)
Nozima Aripova, Michael Duryee, Peter Maloley, Bryant England, James O'Dell, Ted Mikuls and Geoffrey Thiele, University of Nebraska Medical Center, Omaha, NE
Background/Purpose: In rheumatoid arthritis (RA) synovium, activated synovial fibroblasts and macrophages release inflammatory mediators that affect surrounding cells and accelerate disease progression. One such chemokine…
Abstract Number: 1007 • ACR Convergence 2021
Vascular Deposition of Oxidized LDL Is Increased in Children with Untreated Juvenile Dermatomyositis
Jacob Spitznagle¹, Akadia Kacha-Ochana², Joan Cook-Mills³, Amer Khojah², Gabrielle Morgan⁴ and Lauren Pachman⁵, ¹Hospital for Special Surgery, New York, NY, ²Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ³Indiana University School of Medicine, Departments of Pediatrics and Microbiology & Immunology, Indianapolis, IN, ⁴Ann & Robert H. Lurie Children's Hospital of Chicago and Northwestern University Feinberg School of Medicine, Chicago, IL, ⁵Northwestern's Feinberg School of Medicine. Ann and Robert H. Lurie Children's Hospital of Chicago; Stanley Manne Children's Research Institute of Chicago, Lake Forest, IL
Background/Purpose: Juvenile dermatomyositis (JDM) is a systemic vasculopathy associated with metabolic derangements and possible increased risk for premature atherosclerosis. Oxidation of low-density lipoprotein (LDL) in…
Abstract Number: 1008 • ACR Convergence 2021
Synovial Fluid IL-36γ in Patients with Enthesitis Related Arthritis (ERA) Correlates with Disease Activity and Leads to Production of IL-6 by Fibroblast Like Synoviocytes
Amita Aggarwal, Sanjukta Majumder and Shivika Guleria, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
Background/Purpose: IL-36 has been implicated in the pathogenesis of spondyloarthropathies (SpA) like psoriasis and IBD. Enthesitis related arthritis (ERA) category of juvenile idiopathic arthritis (JIA)…
Abstract Number: 1009 • ACR Convergence 2021
Expanded B Cell-Helper T Cells in ANA+ Oligoarticular Juvenile Idiopathic Arthritis
Amelie Jule¹, Maria Taylor², Kacie Hoyt³, Kevin Wei⁴, Maria Gutierrez-Arcelus¹, Siobhan Case¹, Mia Chandler¹, Margaret Chang², Ezra Cohen¹, Fatma Dedeoglu¹, Olha Halyabar¹, Jonathan Hausmann⁵, Melissa Hazen¹, Erin Janssen¹, Jeffrey Lo², Mindy Lo¹, Esra Meidan², Jordan Roberts¹, Mary Beth Son¹, Robert Sundel², Pui Lee⁶, Talal Chatila¹, Peter Nigrovic¹, Deepak Rao⁴ and Lauren Henderson⁷, ¹Boston Children's Hospital, Boston, MA, ²Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, ³Virginia Tech Carilion School of Medicine, Roanoke, VA, ⁴Brigham and Women's Hospital, Boston, MA, ⁵Beth Israel Deaconess Medical Center, Boston, MA, ⁶Boston Children's Hospital, Newton, MA, ⁷Division of Genetics and Genomics, Boston Children’s Hospital, Harvard Medical School, Boston, MA
Background/Purpose: Oligoarticular juvenile idiopathic arthritis (oligo JIA) is defined by limited joint involvement (< 5 joints) in the first 6 months of disease. A subgroup…
Abstract Number: 1010 • ACR Convergence 2021
Proton Pump Inhibitors Suppress IL-1 Mediated Carditis in a Murine Model of Kawasaki Disease
Paul Tsoukas¹, Melissa Kleinau², Lysa Langevin², Lily Morikawa³, Trang Duong¹, Suzanne Tam⁴ and Rae Yeung⁵, ¹Hospital for Sick Children, Toronto, ON, Canada, ²University of Toronto, Toronto, ON, Canada, ³The Hospital for Sick Children, Toronto, ON, ⁴Hospital for Sick Children, Toronto, ON, ⁵The Hospital for Sick Children, Toronto, ON, Canada
Background/Purpose: Kawasaki disease (KD), is the leading cause of acquired heart disease in childhood. Up to 20% of patients may develop coronary artery lesions (CAL)…
Abstract Number: 1011 • ACR Convergence 2021
Validation of Bioinformatics Pipeline to Detect NEMO-Deleted Exon 5 Autoinflammatory Syndrome (NEMO-NDAS) and Preliminary Clinical and Immunologic Characterization
Adriana Almeida de Jesus¹, Bin Lin², Eric Karlins³, Dana Kahle⁴, Andre Rastegar², Jacob Mitchell², Sofia Torreggiani², Farzana Bhuyan², Sara Alehashemi⁵, Kader Cetin Gedik⁶, Kat Uss², Chyi-Chia Lee⁷, Hyesun Kuehn⁸, Sergio Rosenzweig⁸, Katherine Calvo⁸, Magdalena Walkiewicz⁹, Justin Lack¹⁰, Eric Hanson¹¹, Amer Khojah¹², Eveline Wu¹³, Christiaan Scott¹⁴, Timothy Ronan Leahy¹⁵, Emma MacDermott¹⁵, Orla Kileen¹⁵, Thaschawee Arkachaisri¹⁶, Zoran Gucev¹⁷, Kathryn Cook¹⁸, Vafa Mammadova¹⁹, Gulnara Nasrullayeva¹⁹, Scott Canna²⁰, Douglas Kuhns²¹, Clifton Dalgard²², Timothy Moran²³, Andrew Oler³ and Raphaela Goldbach-Mansky²⁴, ¹TADS/NIAID/NIH, Silver Spring, MD, ²TADS/NIAID/NIH, Bethesda, MD, ³BCBB/NIAID/NIH, Bethesda, MD, ⁴National Institutes of Health, Chevy Chase, MD, ⁵TADS/NIAID/NIH, Clarksville, MD, ⁶Translational Autoinflammatory Diseases Section (TADS)/NIAID/NIH, Bethesda, MD, ⁷NCI/NIH, Bethesda, MD, ⁸CC/DLM/NIH, Bethesda, MD, ⁹CSI/NIAID/NIH, Bethesda, MD, ¹⁰NCBR/NIAID/NIH, Bethesda, MD, ¹¹Indiana University School of Medicine, Indianapolis, IN, ¹²Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ¹³UNC Chapel Hill, Chapel Hill, NC, ¹⁴Paediatric Rheumatology, University of Cape Town, Cape Town, South Africa, ¹⁵Children’s Health Ireland (CHI) at Crumlin, Dublin, Ireland, ¹⁶KK Women's and Children's Hospital, SingHealth, Singapore, Singapore, ¹⁷University Children's Hospital, Medical Faculty Skopje, Skopje, Macedonia, ¹⁸Akron Childrens Hospital, Copley, OH, ¹⁹Azerbaijan Medical University, Baku, Azerbaijan, ²⁰Children's Hospital of Philadelphia, Philadelphia, PA, ²¹Frederick National Laboratory for Cancer Research/NIH, Frederick, MD, ²²TAGC/USUHS, Bethesda, MD, ²³University of North Carolina School of Medicine, Chapel Hill, NC, ²⁴NIH/NIAID, Potomac, MD
Background/Purpose: Splice site variants in IKBKG that lead to exon 5 deletion cause NEMO-deleted exon 5 autoinflammatory syndrome (NEMO-NDAS). NEMO-NDAS clinically mimics the interferonopathy chronic…
Abstract Number: 1012 • ACR Convergence 2021
Altered T Cell Responses, and Synergistic Regulation of Synovial Fibroblasts Function in Children with Down’s Syndrome-Associated Arthritis
Serena Foo¹, Achilleas Floudas², Aisling O' Brien¹, Sharon Ansboro¹, Ronan Mullan³, Douglas Veale⁴, Emma MacDermott⁵, Derek Deely⁶, Charlene Foley⁶, Orla Killeen⁶ and Ursula Fearon¹, ¹Trinity College Dublin, Dublin, Ireland, ²Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Ireland, ³Tallaght University Hospital, Dublin, Ireland, ⁴University College Dublin, Dublin, Ireland, ⁵Children’s Health Ireland (CHI) at Crumlin, Dublin, Ireland, ⁶Children's Health Ireland, Crumlin, Dublin, Ireland
Background/Purpose: Juvenile idiopathic arthritis (JIA) was thought to be the most common inflammatory arthritis in children. However an aggressive, erosive arthritis of little-known immunologic mechanism…
Abstract Number: 1013 • ACR Convergence 2021
SARS-CoV-2 Antibody Phenotype and Immune Gene Expression in Multi-system Inflammatory Syndrome in Children
Kate Webb¹, Thandeka Moyo-Gwete², Simon Mendelsohn³, Claire Butters⁴, Simone Richardson⁵, Heidi Facey-Thomas⁴, Debbie Abrahams⁴, Mashudu Madzivhandila⁵, Zanele Makhado⁵, Frances Ayres⁵, William Horsnell⁶, Neilia Manamela⁵, Richard Baguma³, Stanley Kimbung Mbandi³, Mzwandile Erasmus³, Thomas Scriba³, Liesl Zühlke⁷, Penny Moore⁵, George Kassiotis⁸ and Christiaan Scott⁴, ¹Paediatric Rheumatology University of Cape Town/ Francis Crick Institute, Cape Town, South Africa, ²National Institute of Communicable Diseases/University of Witwatersrand, Johannesburg, South Africa, ³South African TB vaccine initiative, IIDM, University of Cape Town, Cape Town, South Africa, ⁴Paediatric Rheumatology, University of Cape Town, Cape Town, South Africa, ⁵National Institute of Communicable Diseases/University of Witwatersrand, Cape Town, South Africa, ⁶University of Cape Town, Cape Town, South Africa, ⁷Paediatric Cardiology, University of Cape Town, Cape Town, South Africa, ⁸Retroviral Immunology, Francis Crick Institute, London, United Kingdom
Background/Purpose: Multi-system Inflammatory Syndrome in Children (MIS-C) is a severe disease that affects a small proportion of children exposed to Severe Acute Respiratory Syndrome Coronavirus…
Abstract Number: 1014 • ACR Convergence 2021
Enhanced Expression of Rheumatoid Arthritis Related Autoantibodies Following Airborne Endotoxin Exposure in the Setting of Collagen-Induced Arthritis
Ted Mikuls¹, Rohit Gaurav¹, Geoffrey Thiele¹, Bryant England¹, Madison Wolfe¹, Brianna Shaw¹, Kristina Bailey¹, Amy Nelson¹, Michael Duryee¹, Carlos Hunter¹, Debra Romberger¹, Dana Ascherman² and Jill Poole¹, ¹University of Nebraska Medical Center, Omaha, NE, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: In addition to inflammatory arthritis, collagen-induced arthritis (CIA) recapitulates cardinal features of rheumatoid arthritis (RA) including autoreactive T cells, peptidyl-arginine deiminase expression, and citrullination…
Abstract Number: 1015 • ACR Convergence 2021
Preclinical Investigation of the First-in-Class SIK2/SIK3 Inhibitor GLPG3970 in Models of Arthritis
Catherine Jagerschmidt¹, Stephanie Lavazais¹, Maikel Colli², Michael Drennan², Erik Verschueren², David Amantini¹, Nicolas Desroy¹ and Steve De Vos², ¹Galapagos SASU, Romainville, France, ²Galapagos NV, Mechelen, Belgium
Background/Purpose: Improved management of rheumatoid arthritis (RA) and psoriatic arthritis (PsA) remains an unmet need. Salt-inducible kinases (SIKs) modulate immune cells by a dual mechanism…
Abstract Number: 1016 • ACR Convergence 2021
Assessment of Pre-Inflammatory Mesenchymal (PRIME) Cells as a Biomarker of Tumor Necrosis Factor-Induced Arthritis in Mice
Kiana Chen¹, Xi Lin¹, Lianping Xing², H. Mark Kenney³, Richard Bell⁴, Edward Schwarz⁵ and Homaira Rahimi⁵, ¹University of Rochester School of Medicine and Dentistry, Rochester, NY, ²University of Rochester Medical Center, Webster, NY, ³University of Rochester Medical Center, Rochester, NY, ⁴Hospital for Special Surgery, New York, NY, ⁵University of Rochester, Rochester, NY
Background/Purpose: Recently, CD45−CD31−Podoplanin (PDPN)+ synovial fibroblast-like cells, termed pre-inflammatory mesenchymal (PRIME) cells were found to be differentially expressed and circulate in the blood of rheumatoid…
Abstract Number: 1017 • ACR Convergence 2021
Osteoclast-Specific Transmembrane Protein (OC-STAMP) Regulates Osteoclastogenesis and Inhibits Inflammation in an Acute Arthritis Model
Maria de la Luz Garcia-Hernandez¹, Javier Rangel-Moreno¹, Ananta Paine¹, Jacob R. Jones¹, Marc Nuzzo¹, Lidsay N. Schnur² and Christopher Ritchlin¹, ¹Division of Allergy, Immunology, and Rheumatology, School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY, ²University of Rochester, Rochester, NY
Background/Purpose: Dendritic Cell (DC)-Specific Transmembrane Protein (STAMP) expressed by osteoclast precursors is required for cell-cell fusion in the formation of the osteoclast (OC) polykaryon. Genetic…

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