Abstracts tagged "immunology"

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…
Abstract Number: 1726 • ACR Convergence 2022
Impaired Dynamic X-Chromosome Inactivation Maintenance in T Lymphocytes Is a Feature of Spontaneous Lupus in Female Mice and Is Exacerbated in Female-Biased Disease Models
Nikhil Jiwrajka¹, Natalie Toothacre², Zachary Beethem², Sarah Sting², Katherine Forsyth², Amanda Driscoll², William Stohl³ and Montserrat Anguera², ¹Division of Rheumatology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, ²Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, ³University of Southern California, Los Angeles, CA
Background/Purpose: SLE is highly female-biased, yet the molecular origins of this bias remain unclear. The X chromosome contains many immune-related genes, suggesting that X-linked epigenetic…
Abstract Number: 2181 • ACR Convergence 2022
Gut Microbe-derived Short-Chain Fatty Acids Regulate Arthritis and Myositis During Chikungunya Virus Infection
Fang R. Zhao¹, Emma Winkler¹, Chun-Jun Guo², Russell B. Williams³, Leran Wang¹, Ana Jung¹, Lindsay Droit¹, Leah Heath¹, Ting-ting Li², Matthias Mack⁴, Megan T. Baldridge¹, Thaddeus S. Stappenbeck⁵, Larissa B. Thackray¹, Scott A. Handley¹, Michael A. Fischbach⁶ and Michael S. Diamond¹, ¹Washington University in St. Louis, St. Louis, MO, ²Cornell University, New York, NY, ³Donald Danforth Plant Science Center, St. Louis, MO, ⁴University Hospital Regensburg, Regensburg, Germany, ⁵Cleveland Clinic, Cleveland, OH, ⁶Stanford University, Stanford, CA
Background/Purpose: The intestinal microbiota regulates musculoskeletal inflammation and antibiotic use increases risk for the development or relapse of inflammatory arthritis. However, the basis for this…
Abstract Number: 0161 • ACR Convergence 2022
Lenabasum, a Cannabinoid Type 2 Receptor Agonist, Exerts Anti-Inflammatory Effects in Dermatomyositis in Th1 Cells
DeAnna Diaz¹, Thomas Vazquez², Nilesh Kodali³, Madison Grinnell⁴, Emily Keyes⁴, Josh Dan⁴, Grant Sprow⁵, Muhammad Bashir⁶, Meena Sharma⁷ and Victoria Werth⁸, ¹Philadelphia College of Medicine, Philadelphia, PA, ²FIU Wertheim College of Medicine, Virginia Beach, VA, ³New Jersey Medical School, Coppell, TX, ⁴Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, ⁵Albert Einstein College of Medicine, Philadelphia, PA, ⁶University of Pennsylvania, Philadelphia, PA, ⁷Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, ⁸University of Pennsylvania and Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA
Background/Purpose: Dermatomyositis (DM) is a chronic, systemic autoimmune disease affecting the skin, muscle, and lungs. Lenabasum, a non-psychoactive cannabinoid type 2 receptor (CB2R) agonist, is…
Abstract Number: 0630 • ACR Convergence 2022
Ferroptosis of CD163+ Tissue Infiltrating Macrophages in Lupus Nephritis
Qi Cheng, Huaxiang Wu and Yan Du, The Second Affiliated Hospital Of Zhejiang University School Of Medicine, Hangzhou, China
Background/Purpose: Lupus nephritis (LN) is one of the most common complications of systemic lupus erythematosus (SLE), with high morbidity and mortality. Despite a better understanding…
Abstract Number: 0787 • ACR Convergence 2022
Relationship Between Humoral and Cellular Immune Responses in Persons with Rheumatoid Arthritis Following a Third Dose of COVID-19 Vaccine
Sara Tedeschi¹, Daniel Solomon¹, Yuezhou Chen², Jack Ellrodt¹, Mary Grace Whelan¹, Jacklyn Stratton¹, Keigo Hayashi³, Noah Whiteman², Lin Chen¹, Ifeoluwakiisi Adejoorin¹, Kathryne Marks¹, Emma Gomez-Rivas¹, Deepak Rao¹, Anna Jonsson¹ and Duane Wesemann², ¹Brigham and Women's Hospital, Boston, MA, ²Harvard Medical School, Boston, MA, ³Brigham and Women's Hospital, Okayama, Japan
Background/Purpose: DMARDs that treat RA may reduce immune responses to COVID-19 vaccination. We compared measures of humoral and cell-mediated immunity in RA patients before and…
Abstract Number: 1480 • ACR Convergence 2022
Is Lupus Podocytopathy a New Variant of Lupus Nephritis?
Clarice P. Lin¹ and Richard C. Chou², ¹University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Department of Medicine, Buffalo, NY, ²University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Division of Allergy, Immunology, & Rheumatology, Department of Medicine, Buffalo, NY
Background/Purpose: Kidney disease is a common manifestation of systemic lupus erythematosus (SLE); when it presents as glomerulonephritis also known as lupus nephritis (LN), it predicts…
Abstract Number: 1732 • ACR Convergence 2022
Novel Human Class II MHC Tetramers Detect Rare, Self-Reactive CD4+ T Cells Relevant to Mixed Connective Tissue Disease
Shawn Mahmud, Thamotharampillai Dileepan, Bryce Binstadt and Marc Jenkins, University of Minnesota, Minneapolis, MN
Background/Purpose: Nearly all patients with mixed connective tissue disease (MCTD) have IgG autoantibodies (autoAb) specific for U170k, a component of the U1-snNRP spliceosomal complex. A…

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