Abstracts tagged "immunology"

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…
Abstract Number: 2184 • ACR Convergence 2022
CaMK4 Controls the Humoral Response via the T Follicular Helper Compartment and Regulates Autoimmunity
Marc Scherlinger¹, Hao Li², Wenliang Pan², Maria Tsokos¹ and George Tsokos², ¹BIDMC Harvard University, Boston, MA, ²Division of Rheumatology and Clinical Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
Background/Purpose: Systemic lupus erythematosus (SLE) is characterized by a dysregulated T cell compartment and production of autoantibodies leading to organ damage. We previously identified that…
Abstract Number: 0218 • ACR Convergence 2022
A Web-based Education Program Improves Health Care Provider Knowledge for the Care of Cancer Patients Receiving Immunotherapy Who Develop Rheumatic Immune-related Complications, and Those with Pre-existing Rheumatic Disease: An Initiative of CanRIO
Janet Roberts¹, Keith Lau², Daniel Ennis³, Marie Hudson⁴, Shahin Jamal³, Steven Katz² and Carrie Ye², ¹Dalhousie University, Halifax, NS, Canada, ²University of Alberta, Edmonton, AB, Canada, ³University of British Columbia, Vancouver, BC, Canada, ⁴McGill University, Montréal, QC, Canada
Background/Purpose: Immunotherapy has revolutionized the treatment of many advanced stage malignancies. These agents harness the immune system to fight cancer. However, use of these agents…
Abstract Number: 0633 • ACR Convergence 2022
Identification of Systemic Lupus Erythematosus Endotypes by Analysis of Inflammatory and Immunologic Gene Expression Signatures
Erika Hubbard¹, Prathyusha Bachali², Kathryn Kingsmore Allison¹, Yisha He¹, Michelle Catalina³, Amrie Grammer⁴ and Peter Lipsky¹, ¹AMPEL BioSolutions, Charlottesville, VA, ²AMPEL BioSolutions, Redmond, WA, ³AMPEL BioSolutions, Harvard, MA, ⁴AMPEL LLC, Charlottesville, VA
Background/Purpose: One of the hallmarks of SLE is clinical and molecular heterogeneity. Recent work has leveraged next-generation sequencing techniques to identify molecular signatures characteristic of…

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