Abstracts tagged "immunology"

Abstract Number: 0615 • ACR Convergence 2022
Semaphorin 5A Suppresses Ferroptosis Through Activation of PI3K-AKT-mTOR Signaling in Rheumatoid Arthritis
Qi Cheng, Mo chen, Mengdan Liu, Xin chen, Huaxiang Wu and Yan Du, The Second Affiliated Hospital Of Zhejiang University School Of Medicine, Hangzhou, China
Background/Purpose: Rheumatoid arthritis (RA) is a systemic autoimmune disease with synovial inflammation as the main pathological feature, and can eventually lead to irreversible joint or…
Abstract Number: 0769 • ACR Convergence 2022
Heterologous Vector versus Homologous mRNA COVID-19 Booster Vaccination in Non-seroconverted Immunosuppressed Patients: A Randomized Controlled Trial
Daniela Sieghart¹, Daniel Mrak¹, Elisabeth Simader¹, Selma Tobudic², Helga Radner¹, Peter Mandl³, Lisa Göschl¹, Maximilian Koblischke⁴, Nikolaus Hommer⁵, Lukas Hartl⁶, Philipp Hofer⁷, Felix Kartnig¹, Thomas Hummel¹, Andreas Kerschbaumer³, Thomas Deimel³, Antonia Puchner¹, Renate Thalhammer⁸, Andreas Zuckermann⁹, Karin Stiasny⁴, Thomas Perkmann⁸, Helmuth Haslacher⁸, Markus Zeitlinger⁵, Ursula Wiedermann¹⁰, Judith Aberle⁴, Daniel Aletaha¹¹, Leonhard Heinz¹ and Michael Bonelli¹, ¹Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria, ²Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria, ³Medical University of Vienna, Vienna, Austria, ⁴Center for Virology, Medical University of Vienna, Vienna, Austria, ⁵Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria, ⁶Division of Gastroenterology, Medical University of Vienna, Vienna, Austria, ⁷Department of Pathology, Medical University of Vienna, Vienna, Austria, ⁸Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria, ⁹Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria, ¹⁰Institute of Specific Prophylaxis and Tropical Medicine, Center of Pathophysiology, Infectiology & Immunology, Medical University Vienna, Vienna, Austria, ¹¹Medical University Vienna, Wien, Austria
Background/Purpose: Patients under immunosuppressive therapy have a high risk for severe COVID-19 disease courses. However, efficacy of vaccination and therefore the right vaccination strategy remains…
Abstract Number: 1180 • ACR Convergence 2022
Deficiency and Altered Phenotype of Mucosal-associated Invariant T Cells in Systemic Sclerosis
Manon Lesturgie-Talarek¹, Virginie Gonzalez¹, Camelia Frantz², Noémie Sénot¹, Zouriatou Gouda¹, Camille Rousseau¹, Lucie Beaudoin¹, Agnès Lehuen¹, Jérôme Avouac³ and Yannick Allanore⁴, ¹INSERM U1016, Institut Cochin, Paris, France, ²Hôpital Cochin, AP-HP Centre - Université Paris Cité, Paris, France, ³University of Paris, Paris, France, ⁴Department of Rheumatology A, Descartes University, APHP, Cochin Hospital, Paris, France, Paris, France
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune disease characterized by fibrosis of the skin and internal organs such as the lung. Mucosal-associated invariant T (MAIT)…
Abstract Number: 1718 • ACR Convergence 2022
Parenchymal INFγ Response Regulates Murine Lupus Nephritis
Minjung Kim¹, Anthony Marinov¹, Mark Shlomchik² and Jeremy Tilstra², ¹University of Pittsburgh, Pittsburgh, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Lupus nephritis is the most common life-threatening end-organ complication of SLE. Interstitial infiltrates, specifically T cells, are major predictors of disease outcomes. We recently…
Abstract Number: 2030 • ACR Convergence 2022
Designing of a Phase 2, Multicenter, Randomized, Placebo-Controlled, Double-Blind Study to Assess the Efficacy and Safety of Nipocalimab, an FcRn Inhibitor, in Adults with Primary Sjögren’s Syndrome
Jonathan Hubbard¹, Kim Campbell¹, Kathy Sivils¹, Robert Hoffman¹, Kim Hung Lo¹, Jocelyn Leu¹, Sophia Liva¹, Qing Zuraw¹, Anne Stevens¹, Leona Ling², Keith Karcher³, Sindhu Ramchandren³, Hong Sun³, Hal Scofield⁴, Daniel Wallace⁵ and Raphaèle Seror⁶, ¹Janssen Research and Development, LLC, Spring House, PA, ²Janssen Research & Development, LLC, Cambridge, MA, ³Janssen Research & Development, LLC, Titusville, NJ, ⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁵Cedars-Sinai Medical Center, Los Angeles, CA, ⁶University Hospital Paris-Saclay, Le Kremlin Bicêtre, France
Background/Purpose: Dysregulated humoral immunity is a hallmark of primary Sjögren's Syndrome (pSS). This dysregulation involves aberrant B-lymphocyte activity resulting in abnormally high immunoglobulin G (IgG)…
Abstract Number: 0053 • ACR Convergence 2022
Natural Microbial Exposure Increases Susceptibility of C57BL/6 Mice to Collagen-induced Arthritis
Sahar Lotfi-Emran¹ and David Masopust², ¹University of Minnesota, Minneapolis, MN, ²University of Minnesota, Department of Microbiology and Immunology, Minneapolis, MN
Background/Purpose: Mice exposed to natural microbes (NME) develop an appropriately mature immune system, one that resembles that of a non-neonatal human.1,2 Collagen induced arthritis is…
Abstract Number: 0618 • ACR Convergence 2022
Regulation of IgA Secretion Through PAD2-mediated Citrullination of MZB1
Bo Sun¹, Benjamin Geary², Santanu Mondal³, Ronak Tilvawala⁴, Konstantin Tsoyi⁵, Ivan O. Rosas⁵, Paul Thompson³ and I-Cheng Ho², ¹Brigham and Women's Hospital, Lexington, MA, ²Brigham and Women's Hospital, Boston, MA, ³UMass Medical School, Worcester, MA, ⁴University of Kansas, Lawrence, KS, ⁵Baylor College of Medicine, Houston, TX
Background/Purpose: The secretion of antibody requires concerted action of several endoplasmic reticulum proteins (ERPs) in B cells. For example, marginal zone B and B1 cell-specific…
Abstract Number: 0773 • ACR Convergence 2022
Additional Dose of SARS-CoV-2 Vaccine Improves Cross-Variant Neutralization Titers in Immunosuppressed Patients with Chronic Inflammatory Disease
Michael Paley¹, Parakkal Deepak², Wooseob Kim³, Monica Yang⁴, Vinay Chandrasekaran³, Guadalupe Oliva Escudero³, Katherine Huang³, Zhuoming Liu³, Lily McMorrow⁵, Mahima Thapa³, Matthew Ciorba³, Mehrdad Matloubian⁶, Lianne Gensler⁷, Mary Nakamura⁸, Sean Whelan³, William Buchser³, Ali Ellebedy³ and Alfred Kim⁵, ¹Washington University in St. Louis, Saint Louis, MO, ²Washington University in St. Louis, Saint Louis, ³Washington University in St. Louis, St. Louis, MO, ⁴UCSF, SF, CA, ⁵Washington University School of Medicine, St. Louis, MO, ⁶UCSF, San Francisco, CA, ⁷Department of Medicine, Division of Rheumatology, University of California San Francisco, San Francisco, CA, ⁸UCSF/SFVAHCS, San Francisco, CA
Background/Purpose: Most immunosuppressed patients with chronic inflammatory diseases (CID) mount total anti-Spike (S) IgG responses following vaccination with mRNA-based SARS-CoV-2 vaccines. Less is known, however,…
Abstract Number: 1231 • ACR Convergence 2022
[68Ga]- CPCR4 Trifluoroacetate PET/CT Imaging of Chemokine Receptor CXCR4- Expression in Systemic Sclerosis Related Interstitial Lung Disease
Chirag Rajkumar Kopp¹, Shefali Sharma², Venkata Subramanian Krishnaraju³, Chandra Bhushan Prasad³, Jagdeep Singh³, Shashi Anand³, Ranjana Minz³, Ashwani Sood³, Anindita Sinha³, Rajender Kumar Basher³, Sahajal Dhooria³, Varun Dhir⁴ and sanjay jain³, ¹Post Graduate Institute of Medical Education and Research, Chandigarh, India, ²PGIMER< Chandigarh, Chandigarh, India, ³Postgraduate Institute of Medical Education and Research, Chandigarh, India, ⁴PGIMER, CHD, INDIA, Chandigarh, India
Background/Purpose: Interstitial lung disease (ILD) in Systemic sclerosis (SSc) is a major contributor of morbidity and mortality. CXCR4/CXCL12 axis has been implicated in the pathogenesis…
Abstract Number: 1722 • ACR Convergence 2022
The ERβ Agonist, WT-IV-012, Suppresses the Inflammatory Response in Systemic Lupus Erythematosus
Shane Bruckner¹, Braden Zeno¹, William Willis², Chad Bennett¹ and Wael Jarjour¹, ¹The Ohio State University, Columbus, OH, ²Ohio State, Reynoldsburg, OH
Background/Purpose: Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by multiple organ damage, mainly affecting young women between the ages of 15 and 45…
Abstract Number: 2154 • ACR Convergence 2022
An Exploratory Phosphoproteomic and Immunohistochemical Analysis of Receptor Tyrosine Kinases and Downstream Signaling Pathways in Systemic Sclerosis Skin
Elizabeth Bundschuh¹, Rebecca Fine², Miruna Carnaru³, Sanchit Kumar⁴, Francis Perry Wilson², Alyssa Williams¹, Shannon Teaw⁴, Ian Odell⁴ and Monique Hinchcliff⁵, ¹Yale University, New Haven, CT, ²Yale School of Medicine, New Haven, CT, ³Hartford Healthcare Medical Group, Rocky Hill, CT, ⁴Yale University School of Medicine, New Haven, CT, ⁵Yale School of Medicine, Westport, CT
Background/Purpose: Receptor tyrosine kinases (RTK) such as epidermal growth factor receptor (EGFR) and others including PDGFRs, FGFRs, and VEGFRs are implicated in systemic sclerosis (SSc)…
Abstract Number: 0144 • ACR Convergence 2022
The Association of Hypocomplementemia with Organ Involvement and Serum IgG4 in IgG4-related Disease
Guy Katz¹, Amelia S. Cogan¹, Grace McMahon¹, Sebastian Perez-Espina¹, Ana Fernandes¹, Cory Perugino¹, Zachary Wallace¹, John Atkinson², Alfred Kim² and John Stone³, ¹Massachusetts General Hospital, Boston, MA, ²Washington University School of Medicine, St. Louis, MO, ³Massachusetts General Hospital Rheumatology Unit, Harvard Medical School, Boston, MA
Background/Purpose: IgG4-related disease (IgG4-RD) is a systemic immune-mediated disease that can affect nearly every organ in the body. Hypocomplementemia is common in some patients with…
Abstract Number: 0629 • ACR Convergence 2022
The Cellular Metabolism of SLE NK Cells Is Primarily Altered at the Level of Mitochondrial Respiration
Natalia Fluder, Morgane Humbel, camillo Ribi and Denis Comte, Service of Immunology and Allergy / CHUV, Lausanne, Switzerland
Background/Purpose: Systemic lupus erythematosus (SLE) is a systemic inflammatory disorder, which involves a loss of tolerance and development of autoantibodies. The role of Natural Killer…
Abstract Number: 0785 • ACR Convergence 2022
Humoral Immune Responses Following Four SARS-CoV-2 Vaccine Doses or COVID-19 Infection in Patients with Immune-Mediated Inflammatory Diseases on Immunosuppressive Therapy: A Prospective Cohort Study
Hilde Ørbo¹, Kristin Hammersbøen Bjørlykke², Joe Sexton¹, Anne Therese Tveter¹, Ingrid Jyssum¹, Ingrid Egeland Christensen¹, David Warren³, Tore K. Kvien¹, Adity Chopra⁴, Grete Birkeland Kro³, Jørgen Jahnsen², Ludvig A. Munthe³, Espen Haavardsholm¹, Gunnveig Grødeland³, Sella Aarrestad Provan¹, Kristin Kaasen Jørgensen², Silje Watterdal Syversen¹ and Guro Løvik Goll¹, ¹Diakonhjemmet Hospital, Oslo, Norway, ²Akershus University Hospital, Oslo, Norway, ³Oslo University Hospital, Oslo, Norway, ⁴Oslo University Hospital, Oslo, Oslo, Norway
Background/Purpose: Patients with immune-mediated inflammatory diseases (IMIDs) on immunosuppressive therapy have impaired humoral immune responses to SARS-CoV-2 vaccination. This study aimed to assess serologic response…
Abstract Number: 1327 • ACR Convergence 2022
Immune Cell Subsets and Risk of Incident Hip Fracture in Older Adults: The Cardiovascular Health Study
Rachel Elam¹, Petra Buzkova², Joseph Delaney³, Howard Fink⁴, Joshua Barzilay⁵, Laura Carbone¹, Rick Saha¹, John Robbins⁶, Kenneth Mukamal⁷, Rodrigo Valderrabano⁸, Bruce Psaty², Russell Tracy⁹, Nels Olson⁹, Sally Huber¹⁰, Margaret Doyle⁹, Alan Landay¹¹ and Jane Cauley¹², ¹Augusta University, Augusta, GA, ²University of Washington, Seattle, WA, ³University of Manitoba, Winnipeg, MB, Canada, ⁴University of Minnesota, Minneapolis, MN, ⁵Kaiser Permanente, Atlanta, GA, ⁶UC Davis, Davis, CA, ⁷Beth Israel Deaconess Medical Center, Boston, MA, ⁸Brigham and Women's Hospital, Boston, MA, ⁹University of Vermont, Burlington, VT, ¹⁰University of Vermont, Burlingon, VT, ¹¹Rush University Medical Center, Chicago, IL, ¹²University of Pittsburgh, PIttsburgh, PA
Background/Purpose: Cell-mediated immunity may play a role in osteoporosis development. Fracture is the major consequence of osteoporosis. Thus, cell-mediated immunity may impact fracture risk. We…

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