Abstracts tagged "immunology"

Abstract Number: 1578 • ACR Convergence 2020
Rituximab Hypersensitivity in Rheumatic and Inflammatory Diseases: Role of Skin Testing
Sravani Penumarty¹, Javier Quintero Betancourt², Eugenio Capitle² and Reena Khianey², ¹Rutgers, Eastvale, CA, ²Rutgers, Newark, NJ
Background/Purpose: Infusion-related reactions have been reported with rituximab, a monoclonal antibody targeting the CD20 antigen on B cells, and may result in discontinuation of the…
Abstract Number: 0470 • ACR Convergence 2020
Th1 Polarization Defines the T Cell Compartment in the Joints of Oligoarticular Juvenile Idiopathic Arthritis Patients
Amelie Jule¹, Kacie Hoyt¹, Kevin Wei², Siobhan Case³, Margaret Chang¹, Ezra Cohen¹, Fatma Dedeoglu¹, Melissa Hazen¹, Jonathan Hausmann⁴, Olha Halyabar⁵, Erin Janssen⁵, Pui Lee⁶, Jeffrey Lo¹, Mindy Lo¹, Esra Meidan⁷, Jordan Roberts¹, Mary Beth Son¹, Robert Sundel⁵, Talal Chatila¹, Peter Nigrovic⁸ and Lauren Henderson⁹, ¹Boston Children's Hospital, Boston, MA, ²Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Boston Children's Hospital / Beth Israel Deaconess Medical Center, Cambridge, MA, ⁵Children's Hospital/Boston Medical Center, Boston, MA, ⁶1.Boston Children's Hospital;2.Brigham and Women's Hospital;3.Harvard Medical School, Newton, MA, ⁷Boston Children's Hospital, Somerville, MA, ⁸Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA, Boston, ⁹Boston Children's Hospital, Watertown, MA
Background/Purpose: Oligoarticular juvenile idiopathic arthritis (oligo JIA) is defined by limited joint involvement at disease onset. Some children achieve long-term remission while others continue to…
Abstract Number: 1255 • ACR Convergence 2020
Sjӧgren’s Syndrome Minor Salivary Gland Mesenchymal Stromal Cells Derived Deploy Intact Immune Plasticity and Display Myofibroblast-Like Properties
Sara McCoy¹, Jayeeta Giri¹, Rahul Das¹, Pradyut Paul¹, Andrea Pennati¹, Maxwell Parker¹, Yun Liang¹ and Jacques Galipeau¹, ¹University of Wisconsin, Madison
Background/Purpose: Primary Sjӧgren’s syndrome (pSS) is the second most common systemic autoimmune disease with hallmark features of severe ocular and oral sicca, leading to reduced…
Abstract Number: 1579 • ACR Convergence 2020
Assessing the Effect of Calcineurin Inhibitors for Immune-related Adverse Event Management on Tumor Response
Pankti Reid¹, Daniel Olson² and Thomas Gajewski², ¹University of Chicago, Chicago, IL, ²University of Chicago Medical Center, Department of Medicine, Section of Hematology Oncology, Chicago
Background/Purpose: High grade immune-related adverse events (irAEs) to cancer immune checkpoint inhibitors (ICI) require considerable immunosuppression (IS) with high-dose steroids and steroid-sparing IS (SSIS) for…
Abstract Number: 0071 • ACR Convergence 2020
Significant Enrichment of Transcriptionally Distinct CD206+CD163+ Macrophage Population in Rheumatoid Arthritis Synovial Tissue
Megan Hanlon¹, Mary Canavan², Qingxuan Song³, Candice Low⁴, Phil Gallagher⁵, Ronan Mullan⁶, Conor Hurson⁷, Sunil Nagpal⁸, Douglas Veale⁹ and Ursula Fearon², ¹Molecular Rheumatology, Trinity College Dublin, Dublin 2, Dublin, Ireland, ²Molecular Rheumatology, Trinity College Dublin, Dublin, Dublin, Ireland, ³Janssen Research & Development, LLC, Spring House, PA, USA, Spring House, PA, ⁴EULAR Centre for Arthritis and Rheumatic diseases, St Vincents University Hospital, UCD, Dublin, Ireland, ⁵St Vincents University Hospital, UCD, Dublin, Ireland, ⁶Adelaide and Meath Hospital, Dublin, Dublin, Ireland, ⁷St Vincents University Hospital, UCD, Dublin, Dublin, Ireland, ⁸Janssen Research & Development, Collegeville, PA, ⁹EULAR Centre for Arthritis and Rheumatic Diseases, St Vincents University Hospital, UCD, 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: 0492 • ACR Convergence 2020
Microbiota-induced Intestinal Barrier Dysfunction Initiates the Shuttling of Immune Cells from the Gut to the Joints
Narges Tajik¹, Michael Frech², Carolin Brandl¹, Juan Cañete³, Francesco Ciccia⁴, Georg Schett⁵ and Mario Zaiss⁶, ¹Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; 2 Deutsches Zentrum für Immuntherapie (DZI), Erlangen, Germany, ²Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; 2 Deutsches Zentrum für Immuntherapie (DZI), Erlangen, ³Departamento de Reumatología, Hospital Clínic de Barcelona e IDIBAPS, Barcelona, Spain, Barcelona, Spain, ⁴Dipartimento Biomedico di Medicina Interna e Specialistica, University of Palermo, Palermo, Italy, Palermo, Italy, ⁵Friedrich-Alexander-Universität Erlangen- Nuremberg, Erlangen, Germany, ⁶Department of Internal Medicine 3, Friedrich-Alexander University (FAU) Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany
Background/Purpose: While it is known that microbial dysbiosis is associated with the onset of rheumatoid arthritis, mechanistic insights how it facilitates the development of arthritis…
Abstract Number: 1332 • ACR Convergence 2020
Identifying the as Patient at Risk: Is Aortic Root Diameter Associated with HLA-B27?
Milad Baniaamam¹, Sjoerd C. Heslinga², M. Louis Handoko³, Thelma C. Konings³, Otto Kamp³, Vokko P. van Halm⁴, J. Christiaan van Denderen¹, Irene van der Horst-Bruinsma² and Mike Nurmohamed⁵, ¹Reade, Amsterdam, Netherlands, ²Department of Rheumatology, Amsterdam UMC, location VU University Medical Centre, Amsterdam, Netherlands, ³Department of Cardiology, Amsterdam UMC, location VU University Medical Centre, Amsterdam, Netherlands, ⁴Department of Cardiology, Amsterdam UMC, location VU University Medical Centre, Amsterdam, ⁵Amsterdam Rheumatology and immunology Center, location Reade and Amsterdam UMC, VU medical center, Amsterdam, Netherlands
Background/Purpose: Ankylosing spondylitis (AS) is an inflammatory joint disease (IJD) associated with cardiac involvement particularly aortic valve regurgitation (AVR). AVR in AS is caused by…
Abstract Number: 1636 • ACR Convergence 2020
8 Years Follow-Up of a Novel Autoinflammatory Disease: CD59 Malfunction Causes Hemolytic Anemia, Recurrent Guillain-Barre Syndrome, and Strokes in Pediatric Populations and Respond Well to Eculizumab and Pozelimab
Dror Mevorach¹ and Netanel Karbian¹, ¹Hadassah-University Hospital, Jerusalem, Yerushalayim, Israel
Background/Purpose: In 2013 we have described the first patients with a novel autoinflammatory disease manifested in 4 children with recurrent Guillain-Barre syndrome and hemolytic anemia…
Abstract Number: 0072 • ACR Convergence 2020
Characterizing Heterogeneity of Synovial Macrophages in Rheumatoid Arthritis Patients
Shang-Yang Chen¹, Yidan Wang², Anna Montgomery², Salina Dominguez², Carla Cuda², Gaurav Gadhvi¹, Harris Perlman² and Deborah Winter³, ¹Northwestern University, Chicago, IL, ²Northwestern University, Chicago, ³Northwestern University Division of Rheumatology, Chicago, IL
Background/Purpose: Macrophages in the synovial lining of the joint are critical players in the pathogenesis of rheumatoid arthritis (RA). While they are potent producers of…
Abstract Number: 0496 • ACR Convergence 2020
A Role of Lipid-Peroxidation in Systemic Lupus Erythematosus-Associated Cardiovascular Disease
David Patrick¹, Justin van Beusecum¹, Michelle Ormseth², Leslie J. Crofford², Sean Davies³, Sergey Dikalov¹ and David Harrison¹, ¹Vanderbilt University Medical Center, Nashville, ²Vanderbilt University Medical Center, Nashville, TN, ³Vanderbilt University, Nashville
Background/Purpose: In SLE, cardiovascular complications are a significant contributor to morbidity and death. Importantly, there is an increased prevalence of hypertension in SLE patients compared…
Abstract Number: 1401 • ACR Convergence 2020
Disease Mutation That Weakens ZAP70 Autoinhibition Enhances Responses to Weak and Self Ligands
Lin Shen¹, Mehrdad Matloubian¹, Theresa Kadlecek² and Arthur Weiss¹, ¹University of California, San Francisco, San Francisco, CA, ²University of California, San Francisco, San Francisco
Background/Purpose: ZAP70, a cytoplasmic protein tyrosine kinase, is critical for TCR signaling and T cell development. Complete loss of function of ZAP70 in humans causes…
Abstract Number: 1670 • ACR Convergence 2020
Low Copy Number of Long C4 Genes Is a Genetic Risk Factor for Childhood Onset SLE (cSLE) but Is Associated with Higher Age of Disease Onset
Fatima Barbar-Smiley¹, Danlei Zhou², Joanne Drew², Bi Zhou², Cagri Yildirim-Toruner², Vidya Sivaraman³, Wael Jarjour⁴, Stacy Ardoin² and Chack-Yung Yu⁵, ¹Nationwide Children's Hospital/The Ohio State University, Columbus, OH, ²Nationwide Children's Hospital, Columbus, OH, ³Nationwide Children's Hospital, Bexley, OH, ⁴The Ohio State University, Columbus, OH, ⁵Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH
Background/Purpose: Hypocomplementemia is a marked feature of systemic lupus erythematosus (SLE), which may be a result of consumption initiated by immune complexes between self-nuclear antigens…
Abstract Number: 0090 • ACR Convergence 2020
110 Patients with Monoclonal Gammopathy of Undetermined Significance (MGUS) in a Rheumatology Disease Unit: Fracture, Neuropathy, and Pernicious Anemia Are Clues to Recognition
Michael Lovy¹ and Andrew Dulalia¹, ¹Desert Oasis Healthcare, Palm Springs, CA
Background/Purpose: Monoclonal gammopathy of undetermined significance (MGUS) has been associated with osteoporosis, neuropathy, pernicious anemia, and low vitamin B12, and may precede multiple myeloma and…
Abstract Number: 0511 • ACR Convergence 2020
ERAP1-mediated Immunogenicity and Immune-phenotypes in HLA-B51+ Behçet’s Disease Point to Pathogenic CD8 T Cell Effector Responses
Ann Cavers¹, Yesim Ozguler², Olivier Manches³, Arshed Al-Obeidi¹, Hua Zhong¹, Beatrix Ueberheide¹, Gülen Hatemi⁴, Matthias Kugler¹ and Johannes Nowatzky⁵, ¹NYU School of Medicine, New York, ²Istanbul University Cerrahpaşa Medical School, Istanbul, Turkey, ³Inserm, U 1209, Grenoble, France, ⁴Istanbul University‒Cerrahpaşa, Cerrahpaşa Medical School and Behçet’s Disease Research Center, Istanbul, Turkey, ⁵New York University School of Medicine, New York, NY
Background/Purpose: HLA-B51 is a definite risk factor for Behçet’s disease (BD). A coding variant of ERAP1, Hap10 – with low peptide-trimming activity – vastly potentiates…
Abstract Number: 1402 • ACR Convergence 2020
Galectin-3 Decreases the Activity of 4-1BB by Facilitating Its Decoy Surface Binding in Rheumatoid Arthritis
Morten Aagaard Nielsen¹, Kristian Juul-Madsen², John Stegmayr³, Chao Gao⁴, Tue Wenzel Kragstrup¹, Malene Hvid¹, Thomas Vorup-Jensen¹, Richard Cummings⁵, Hakon Leffler³ and Bent Deleuran¹, ¹Aarhus University, Aarhus, Denmark, ²Aarhus University, Aarhus, Midtjylland, Denmark, ³Lund University, Lund, Sweden, ⁴Beth Israel Deaconess Medical Center Harvard Medical School, Boston, MA, ⁵Beth Israel Deaconess Medical Center Harvard Medical School, Boston
Background/Purpose: Orchestration of immune checkpoints is central for the outcome of immune activation, especially in patients with rheumatoid arthritis (RA). We have previously shown that…

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