Abstracts tagged "innate immunity"

Abstract Number: 1662 • ACR Convergence 2023
Chronic Excess IL-18 Induces NK Deficiency, but Drives Hyperinflammation via CD8 T-cell Cytokine Overproduction and Selective Immunodeficiency
Jemy Varghese¹, Scott Canna¹, Emily Landy², Laurence Eisenlohr¹, Elise Peauroi³, Vinh Dang¹, Anastasia Frank-Kamenetskii⁴ and Jeremy Morrissette⁵, ¹Children's Hospital of Philadelphia, Philadelphia, PA, ²University of Pittsburgh, Pittsburgh, PA, ³University of Pennsylvania, Philadelphia, PA, ⁴CHOP/UPENN, Philadelphia, PA, ⁵University of Pennsylvania - Perelman School of Medicine, Philadelphia, PA
Background/Purpose: Systemic Juvenile Idiopathic Arthritis (SJIA) and Macrophage Activation Syndrome (MAS) are associated with highly elevated peripheral blood levels of the inflammasome-activated cytokine IL-18 and…
Abstract Number: 0259 • ACR Convergence 2023
Preliminary Experience with a Novel “Fix” for Deep Epitope and Transcriptional Phenotyping of Fragile Cells from Autoinflammatory Flares
Hallie Carol¹, Emily Landy² and Scott Canna¹, ¹Children's Hospital of Philadelphia, Philadelphia, PA, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Autoinflammatory diseases (AID) are characterized by inflammation and immunopathology due to primary defects in the innate immune response. Neutrophils (PMN) feature prominently in the…
Abstract Number: 1676 • ACR Convergence 2023
Tofacitinib Accelerates in Vitro Clot Formation and Delays Clot Lysis in Rheumatoid Arthritis Blood by Enhancement of Macrophage TLR4 Mediated Cytokine Responses- a New Angle on Thrombosis with JAKi in Rheumatology
Paula David¹, Thomas Macleod², Yu Shi³, Payal Ganguly¹, Cedric Duval³, Mark Harland¹, Chi Wong¹, Benazir Saleem⁴ and Dennis McGonagle⁵, ¹University of Leeds, Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), Leeds, United Kingdom, ²University of Leeds, Leeds Institute of Rheumatic and Musculoskeletal Medicine, Leeds, United Kingdom, ³Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom, ⁴Leeds Teaching Hospitals NHS Trust, Rheumatology, Chapel Allerton Hospital, Leeds, United Kingdom, ⁵Leeds Biomedical Research Centre, University of Leeds, Leeds, United Kingdom
Background/Purpose: Rheumatoid Arthritis (RA) patients treated with Janus Kinase inhibitors (JAKi) have reportedly higher venous thromboembolism (VTE) risk and atherosclerotic-related complications including myocardial infarction (1).Although…
Abstract Number: 0757 • ACR Convergence 2023
Identification of 23 Novel COPA Rare Exonic Non-Synonymous Variants and Their Associated Autoimmune and Inflammatory Clinical Phenotypes Among 53,364 Individuals
Pierre-Antoine Juge¹, Gregory McDermott², Keigo Hayashi², Jing Cui³, Clémence David-Gabarre⁴, Marie-Louis Frémond⁴, Holly Wobma⁵, Soumya Raychaudhuri², Elizabeth Karlson², Philippe Dieudé⁶ and Jeffrey Sparks⁷, ¹Division of Rheumatology, Inflammation, and Immunity Brigham & Women's Hospital, Boston, MA, ²Brigham and Women's Hospital, Boston, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Imagine, Paris, France, ⁵Division of Immunology, Boston Children's Hospital, Boston, MA, ⁶Assistance Publique-Hôpitaux de Paris, Bichat-Claude Bernard University Hospital, INSERM UMR1152, University de Paris Cité, Department of Rheumatology, Paris, France, ⁷Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
Background/Purpose: COPA syndrome is a rare, severe monogenic autoinflammatory/autoimmune disorder with variable penetrance, most commonly affecting the lungs and joints. It is caused by dominant…
Abstract Number: 1712 • ACR Convergence 2023
Identification and Functional Characterization of Eight CANDLE/PRAAS Causing Proteasome Variants in Five Unrelated Patients
Adriana Almeida de Jesus¹, Jonas J. Papendorf², Frederic Ebstein³, Sara Alehashemi⁴, Daniela Pioto⁵, Anna Kozlova⁶, Maria Teresa TErreri⁷, Anna Shcherbina⁶, Andre Rastegar⁸, Marta Rodrigues⁹, Renan Pereira¹⁰, Sophia Park¹¹, Bin Lin¹², Kat Uss¹¹, Ana Flavia da Silva Pina⁵, FLAVIO SZTAJNBOK¹³, Sofia Torreggiani¹⁴, Jennifer Stoddard¹⁵, Julie Niemela¹⁵, Sergio Rosenzweig¹⁵, Adriana Fonseca¹⁶, Marietta De Guzman¹⁷, Nicole Micheloni⁵, Melissa Fraga⁵, Sandro Perazzio¹⁸, Raphaela Goldbach-Mansky¹⁹ and Elke Krueger², ¹NIAID, NIH, Bethesda, MD, ²Institut für Medizinische Biochemie und Molekularbiologie (IMBM), Universitätsmedizin Greifswald, Greifswald, Germany, ³Nantes Université, Nantes, France, ⁴NIH/NIAID/TADS, Clarksville, MD, ⁵Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil, ⁶Center for Pediatric Hematology, Oncology, Immunology, Moscow, Russia, ⁷UNIFESP, São Paulo, Brazil, ⁸NIH, Bethesda, MD, ⁹Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil, ¹⁰Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, ¹¹Translational Autoinflammatory Diseases Section, LCIM, NIAID, NIH, Bethesda, MD, ¹²Translational Autoinflammatory Diseases Section l LCIM, NIAID, NIH, Bethesda, MD, ¹³UFRJ/UERJ, São Paulo, Brazil, ¹⁴University of Maryland Baltimore, Baltimore, MD, ¹⁵Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, MD, ¹⁶Instituto de Puericultura e Pediatria Martagao Gesteira / Universidade Federal do Rio de Janeiro, Rio De Janeiro, Brazil, ¹⁷Baylor College of Medicine, Houston, TX, ¹⁸Universidade de Sao Paulo (Unifesp); Universidade de São Paulo (USP); Fleury Laboratories, São Paulo, Brazil, ¹⁹NIH/NIAID, Potomac, MD
Background/Purpose: Mutations in genes coding for 20S proteasome subunits or proteasome assembly helpers cause chronic atypical neutrophilic dermatosis with lipodystrophy and elevated temperatures (CANDLE) or…
Abstract Number: 0796 • ACR Convergence 2023
Role of Group 2 Innate Lymphoid Cells in the Pathogenesis of Rheumatoid Arthritis
Anders Nguyen¹, Agnieszka Lastowska¹, Miriam Bollmann¹, Symeon Kourmoulakis¹, Charlotte E. van der Plas¹, Anna-Karin Hultgård Ekwall², Dietmar M. Zaiss³, Gary S Firestein⁴ and Mattias N.D Svensson⁵, ¹Department of Rheumatology and Inflammation research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, ²Department of Rheumatology and Inflammation research, Sahlgrenska Academy, University of Gothenburg, Kullavik, Sweden, ³Faculty of Medicine, Department of Immune Medicine, University of Regensburg, Regensburg, Germany, Regensburg, Germany, ⁴Department of Medicine, University of California San Diego, La Jolla, CA, ⁵University of Gothenburg, Gothenburg, Sweden
Background/Purpose: Immune-cell mediated activation of joint-lining fibroblast-like synoviocytes (FLS) play a key role in joint inflammation and destruction during Rheumatoid arthritis (RA). Thus, identifying factors…
Abstract Number: 1761 • ACR Convergence 2023
JAK/STAT Inhibition Modifies the Innate Lymphoid Cells 1 Immune Response in Patients with Rheumatoid Arthritis
Lidia La Barbera¹, Marianna Lo Pizzo¹, Chiara Rizzo¹, Leila Mohammadnezhad¹, federica Camarda¹, Francesco Ciccia² and Giuliana Guggino¹, ¹University of Palermo, Palermo, Italy, ²University of Campania - Luigi Vanvitelli, Naples, Italy
Background/Purpose: Recent evidence suggests that innate lymphoid cells (ILCs) might be involved in rheumatoid arthritis (RA) pathogenesis and individuals at risk of RA exhibited an…
Abstract Number: 0881 • ACR Convergence 2023
Deficiency of the Pattern-recognition Receptor CD14 Protects Against LPS-induced Inhibition of Osteoclastogenesis in Vitro
Lance Murphy¹, Kevin Burt², Baofeng Hu³, Vu Nguyen², Robert Mauck² and Carla Scanzello², ¹University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ²University of Pennsylvania, Philadelphia, PA, ³University of Pennsylvania, Wynnewood, PA
Background/Purpose: Osteoarthritis is associated with bone changes such as subchondral sclerosis, bone marrow lesions, and osteophyte formation (Donel S, 2019). Prior work has demonstrated that…
Abstract Number: 2206 • ACR Convergence 2023
Increased Frequency of Activated MAIT Cells Expressing the Gut Homing Receptor CCR9 in Patients with Radiographic Axial Spondyloarthritis
Eric Toussirot¹, Caroline Laheurte², Eléonore Gravelin², Charline Vauchy³, Marc Puyraveau³ and Philippe Saas⁴, ¹University Hospital of Besancon, Besançon, France, ²INSERM UMR1098, plateforme de biomonitoring, EFS Bourgogne-Franche-Comté, Besançon, France, ³INSERM CIC-1431, Besançon, France, ⁴INSERM UMR1098, EFS Bourgogne-Franche-Comté, Besançon, France
Background/Purpose: MAIT (mucosal associated invariant T) cells are involved in mucosa defense against bacteria. This cellular subset is characterized by a semi-invariant αβ TCR and…
Abstract Number: 0888 • ACR Convergence 2023
Functionally Selective Immunomodulator Shows Robust Efficacy in Spontaneous Lupus Mouse Model
Helene ASNAGLI¹, Simon TESSIER¹, Martyn FOSTER², Sofie DENIES³, Eef HOEBEN⁴, Joël CROUZET¹ and Annegret VAN DER AA¹, ¹Ermium Therapeutics, Paris, France, ²Experimental Pathology Consultancy, Benfleet, United Kingdom, ³SD Analytics, Bellem, Belgium, ⁴2-Bridge, Zoersel, Belgium
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex, heterogeneous autoimmune disease. There is still a high unmet need to improve current treatment options. Type 1…
Abstract Number: 2407 • ACR Convergence 2023
Immuno-permissive Antigen-presenting Cells in Giant Cell Arteritis
Shozo Ohtsuki¹, Chenyao Wang², Ryu Watanabe³, Hui Zhang³, Mitsuhiro Akiyama³, Kenneth Warrington⁴, Gerald J. Berry³, Jorg Goronzy⁴ and Cornelia M. Weyand⁵, ¹Mayo Clinic College of Medicine and Science, Stanford University School of Medicine, Rochester, MN, ²Mayo Clinic College of Medicine and Science, Rochester, MN, ³Stanford University School of Medicine, Stanford, CA, ⁴Mayo Clinic, Rochester, MN, ⁵Mayo Clinic School of Medicine and Stanford University, Rochester, MN
Background/Purpose: Giant cell arteritis (GCA) is a medium and large vessel vasculitis with pathognomonic granulomatous infiltrates in the vessel wall. During the early stages of…
Abstract Number: 0892 • ACR Convergence 2023
Single-Cell RNA Sequencing Reveals Keratinocytes and Fibroblasts Drive Hippo and TGFb Dysregulation and Fibrosis in Epidermal Overexpression of VGLL3 in Cutaneous Lupus
Mehrnaz Gharaee-Kermani¹, Allison Billi¹, Jacob Martens¹, Marisa Hildebrandt¹, Amanda Victory¹, Mitra Maz², Shannon Loftus¹, J. Michelle Kahlenberg¹ and Johann E. Gudjonsson¹, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan Medical School, Ann Arbor, MI
Background/Purpose: Fibrosis is characterized by collagen deposition, fibro/myofibroblast (MYOFB) accumulation, and extracellular matrix remodeling. In some subtypes of cutaneous lupus erythematosus (CLE), particularly discoid lupus…
Abstract Number: 2427 • ACR Convergence 2023
Degranulating PR3+ Myeloid Cells Characterize Proliferative Lupus Nephritis
Alessandra Ida Celia¹, Xiaoping Yang², Hana Minsky², Silvia Malvica², Michelle Petri³, the Accelerating Medicines Partnership in RA/SLE⁴, Avi Rosenberg⁵ and Andrea Fava², ¹John Hopkins University of Medicine, Rome, Italy, ²Johns Hopkins University, Baltimore, MD, ³Department of Medicine, Division of Rheumatology, Johns Hopkins University School of Medicine, Timonium, MD, ⁴Multiple, Multiple, ⁵Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD
Background/Purpose: As part of the Accelerating Medicines Partnership (AMP), we discovered that urinary PR3, a neutrophil degranulation product, is associated with histological activity, indicating the…
Abstract Number: 0894 • ACR Convergence 2023
The Cellular and Spatial Type I Interferon Response Following Skin Exposure to Ultraviolet Light
Jie An¹, Xizhang Sun¹, Rayan Najjar¹, Connie Zhao¹, Paul Kong², Stephanie Weaver², Amanda Koehne², Matt Fitzgibbon² and Keith Elkon¹, ¹University of Washington, Seattle, WA, ²Fred Hutchinson Cancer Center, Seattle, WA
Background/Purpose: SLE patients characteristically have a prominent type I interferon (IFN-I) signature in lesional and non-lesional skin. We recently demonstrated that, following a single exposure…
Abstract Number: 2440 • ACR Convergence 2023
Synovial Shaping of Skin-derived Migrating Immune Cells Determines Initiation of Inflammation in Psoriatic Arthritis
Maria Gabriella Raimondo¹, Simon Rauber², Hashem Mohammadian³, Mario Angeli¹, Cong Xu¹, Aleix Rius Rigau⁴, Markus Luber¹, Hannah Labinsky⁵, Alina Ramming¹, Stefano Alivernini⁶, Jörg Distler¹, Ursula Fearon⁷, Douglas Veale⁸, Michael Sticherling⁹, Juan D Canete¹⁰, Georg Schett¹¹ and Andreas Ramming¹, ¹Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany; Deutsches Zentrum für Immuntherapie, Friedrich Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ²3 Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany. 4 Deutsches Zentrum für Immuntherapie, Friedrich Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany., Erlangen, Germany, ³Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany. Deutsches Zentrum für Immuntherapie, Friedrich Alexander University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ⁴Department of Internal Medicine 3, Rheumatology and Clinical Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), FAU Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany, ⁵Medical Department II, Rheumatology, University Hospital Würzburg, Würzburg, Germany, ⁶Immunology Research Core Facility, Gemelli Science and Technology Park, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy; Division of Rheumatology - Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Rome, Italy, ⁷Trinity College Dublin, Dublin, Ireland, ⁸St.Vincent's University Hosp, Dublin, Ireland, ⁹Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg & Universitätsklinikum Erlangen, Department of Dermatology, Erlangen, Germany, ¹⁰Hospital Clinic an IDIBAPS, Barcelona, Spain, ¹¹Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
Background/Purpose: Around 30% of the patients with psoriasis (PsO) develop psoriatic arthritis (PsA) overtime, suggesting the existence of a disease mediated skin-joint crosstalk. To date,…

« Previous Page
1
…
4
5
6
7
8
…
17
Next Page »

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM CT on October 25. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].