Abstracts tagged "immunology"

Abstract Number: 1532 • ACR Convergence 2020
The Non-psychotropic Phytocannabinoids Cannabigerol and Tetrahydrocannabinolic Acid Inhibit Rheumatoid Arthritis Synovial Fibroblast Function by Targeting the Wasabi Receptor TRPA1
Torsten Lowin¹, Matthias Schneider² and Georg Pongratz³, ¹Department of Rheumatology and Hiller Research Unit Rheumatology, Heinrich Heine University, Duesseldorf, Germany, Düsseldorf, Germany, ²Department of Rheumatology and Hiller Research Unit Rheumatology, Heinrich Heine University, Duesseldorf, Germany, Duesseldorf, Germany, ³Department of Rheumatology and Hiller Research Unit Rheumatology, Heinrich Heine University, Duesseldorf, Germany, D�sseldorf, Germany
Background/Purpose: While medical cannabis is available for german patients since 2017, its use to alleviate symptoms of rheumatic diseases is not recommended due to a…
Abstract Number: 1858 • ACR Convergence 2020
Increased Proportion of TH17, TH22 and TC17 Cells and the Correlation to IL-22 and Clinical Parameters in Patients with Ankylosing Spondylitis from Northern Sweden
Kristina Lejon¹, Urban Hellman², Lan Do², Anjani Kumar² and Helena Forsblad-d'Elia³, ¹Department of Clinical microbiology, Infection and Immunology, Umeå University, Umeå, Sweden, ²Department of Public Health and Clinical Medicine, Rheumatology, Umeå, Sweden, ³Department of Public Health and Clinical Medicine/Rheumatology, Umeå University, Umeå, Vasterbottens Lan, Sweden
Background/Purpose: Increased levels of TH17 and TH22 as well as TC17 and TC22 cells have previously been associated with ankylosing spondylitis (AS). The correlation between…
Abstract Number: 0303 • ACR Convergence 2020
SLE Patients Stratify into Distinct Clusters Based on Their Peripheral Blood Immunologic Phenotype During Acute Flare
Kieran Manion¹, Carolina Munoz-Grajales², Michael Kim³, Kirubel Goliad⁴, Dennisse Bonilla⁵, Dafna Gladman¹, Murray Urowitz⁶, Zahi Touma⁷ and Joan Wither⁵, ¹Krembil Research Institute, Toronto Western Hospital, Toronto, ON, Canada, ²University of Toronto-UHN, Toronto, ON, Canada, ³Krembil Research Insitute, Toronto, ON, Canada, ⁴University of Toronto-UHN, Toronto, Canada, ⁵University of Toronto Lupus Clinic, Centre for Prognosis Studies in Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada, ⁶University Health Network, University of Toronto, Toronto, ON, Canada, ⁷University of Toronto, Toronto, ON, Canada
Background/Purpose: SLE is a chronic autoimmune disease in which periods of quiescence are interspersed with acute flares of disease activity that produce much of the…
Abstract Number: 0794 • ACR Convergence 2020
Peripheral Blood T and B Lymphocyte Subsets in Arthritis in the Elderly
Aina Teniente-Serra¹, Lourdes Mateo², Agueda Prior³, Monica Guma⁴, Eva Martinez-Caceres¹ and Melania Martinez-Morillo⁵, ¹Department of Immunology, Germans Trias i Pujol. University Hospital, Badalona, Badalona, ²Department of Rheumatology, Germans Trias i Pujol. University Hospital, Badalona, Badalona, ³Department of Rheumatology, Hospital Germans Trias i Pujol, Badalona, Spain, ⁴Division of Rheumatology, University of California San Diego, Department of Medicine, Autonomous University of Barcelona, La Jolla, CA, ⁵Hospital Germans Trias i Pujol, Barcelona, Spain
Background/Purpose: Multiple lymphocyte subsets like T and B cells have been connected to joint infiltration and inflammation in rheumatoid arthritis (RA). Identification of leucocyte subsets…
Abstract Number: 1567 • ACR Convergence 2020
Association of Blood Count Biomarkers and Clinical Features with Immune Related Adverse Events (irAEs) in Patients with Cancer Treated with Checkpoint Inhibitors (CPI)
Despina Michailidou¹, Ali R Khaki², Guangyu Wang³, Leonidas Diamantopoulos² and Petros Grivas², ¹Division of Rheumatology, University of Washington, Seattle, Washington, Seattle, WA, ²Division of Oncology, University of Washington, Fred Hutchinson Cancer Research Center, Seattle, Washington, Seattle, WA, ³Department of Biostatistics, University of Washington, Seattle, Washington, Seattle, WA
Background/Purpose: Patients with cancer treated with CPI can develop irAEs. Since immune changes may impact blood counts and ratios, we hypothesized that those would be…
Abstract Number: 1861 • ACR Convergence 2020
T Cells with IL-17A+ Signature in Psoriatic Arthritis Are of Different Subpopulations and Are Polyfuntional
Siba Raychaudhuri¹ and Smriti Raychaudhuri², ¹Division of Rheumatology, Allergy & Clinical Immunology, University of California School of Medicine, Davis, and VA Medical Center Sacramento, Sacramento, CA, ²VA Sacramento Medical Center, Davis, CA
Background/Purpose: A variety of T cells such as Th1, Th2, Th9, Th17, NKT, MAIT, etc have been attributed to multiple autoimmune diseases. In psoriatic arthritis…
Abstract Number: 0449 • ACR Convergence 2020
Cytotoxic T Cells with a Chronic Antigen Exposure Phenotype Drive Immune Checkpoint Inhibitor Sicca
Blake Warner¹, Billel Gasmi², David Kleiner³, Paola Perez Riveros⁴, Daniel Barber⁵, Shunsuke Sakai⁵ and Alan Baer⁶, ¹National Institute of Dental and Craniofacial Research, Bethesda, ²National Cancer Institute, Bethesda, MD, ³National Cancer Institute, Bethesda, ⁴National Institute of Dental and Craniofacial Research, Bethesda, MD, ⁵National Institute of Allergy and Infectious Disease, Bethesda, MD, ⁶Johns Hopkins University School of Medicine, Baltimore, MD
Background/Purpose: Immune checkpoint inhibitors (ICI) have advanced the field of cancer therapeutics. By blocking the negative co-stimulation of T cells, ICI augment the anti-tumor immune…
Abstract Number: 0843 • ACR Convergence 2020
Rab4A Activation Predisposes to Hepatitis in Spontaneous and Pristane-Induced Mouse Models of Systemic Lupus Erythematosus
Nick Huang¹, Akshay Patel¹, Zachary Oaks¹ and Andras Perl¹, ¹SUNY Upstate Medical University, Syracuse, NY
Background/Purpose: HRES-1/Rab4 or Rab4A, a GTPase responsible for mitochondrial oxidative stress1 and activation of the mechanistic target of rapamycin2, is overexpressed in T cells of…
Abstract Number: 1568 • ACR Convergence 2020
Impact of the SARS-CoV-2 Pandemic on a Cohort of Patients with Rheumatic Complications of Immune Checkpoint Inhibitors: A Registry Survey Study
Nilasha Ghosh¹, Aidan Tirpack², Caroline Benson³, Gregory Vitone³, Karmela Kim Chan² and Anne Bass¹, ¹Hospital for Special Surgery/Weill Cornell Medicine, New York, NY, ²Hospital for Special Surgery, New York, NY, ³Hospital for Special Surgery, New York
Background/Purpose: It is not known whether cancer patients being treated with immune checkpoint inhibitors (ICI) and/or immunosuppression are more vulnerable to SARS-CoV-2 or more apt…
Abstract Number: 1996 • ACR Convergence 2020
Evaluation of Response to Pneumococcal Vaccination in Patients with Rheumatoid Arthritis Receiving Upadacitinib: Results from a Phase 2 Open-Label Extension Study
Kevin Winthrop¹, Juan Vargas², Edit Drescher³, Conrado Garcia⁴, Alan Friedman⁵, Jeffrey Enejosa⁵, Nasser Khan⁵, Yihan Li⁵, Justin Klaff⁵ and Alan Kivitz⁶, ¹Oregon Health & Science University, Portland, OR, ²Quantum Research, Puerto Varas, Chile, ³Veszprém Csolnoky Ferenc County Hospital, Veszprém, Hungary, ⁴Hospital General de México "Dr. Eduardo Liceaga", Mexico, Mexico, ⁵AbbVie Inc., North Chicago, IL, ⁶Altoona Center for Clinical Research/Altoona Arthritis and Osteoporosis Center, Duncansville, PA
Background/Purpose: Pneumococcal vaccination is recommended in patients with RA who are receiving conventional synthetic/biologic DMARDs.1 Upadacitinib (UPA) is an oral Janus kinase (JAK) inhibitor engineered to…
Abstract Number: 0450 • ACR Convergence 2020
In Vitro Characterization of Inflammatory Arthritis Associated with Immune Check Point Inhibition
Anne Sofie Sørensen¹, Morten Nørgaard Andersen¹, Kristian Juul-Madsen², Cæcilie Deisting Skejø¹, Henrik Schmidt¹, Thomas Vorup-Jensen¹ and Tue Wenzel Kragstrup¹, ¹Aarhus University, Aarhus, Denmark, ²Aarhus University, Aarhus, Midtjylland, Denmark
Background/Purpose: During treatment with immune checkpoint inhibitors (ICI) such as the anti-PD-1 antibody pembrolizumab, 2-4% of cancer patients develop inflammatory arthritis as an immune-related adverse…
Abstract Number: 0859 • ACR Convergence 2020
Biomarkers of B-cell Depletion and Response in a Randomized, Controlled Trial of Obinutuzumab for Proliferative Lupus Nephritis
Ed Vital¹, Philippe Remy², Luis Fernando Quintana Porras³, Laurent Chiche⁴, Dominique Chauveau⁵, Richard Furie⁶, Thomas Schindler⁷, Jay Garg⁸, Matthew Cascino⁸, Zahir Amoura⁹, Andrea Doria¹⁰, Cary Looney⁸ and Dario Roccatello¹¹, ¹University of Leeds; NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom, ²APHP Groupe Hospitalier Henri-Mondor, Creteil, France, ³Hospital Clinic de Barcelona, Barcelona, Catalonia, Spain, ⁴Hôpital Européen, Marseille, France, ⁵Hôpital Rangueil, Centre Hospitalier Univ de Toulouse, Toulouse, France, ⁶Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY, ⁷F. Hoffmann-La Roche Ltd., Basel, Switzerland, ⁸Genentech, Inc., South San Francisco, CA, ⁹Hôpital Pitié-Salpêtrière, Paris, ¹⁰University of Padua, Padua, Italy, ¹¹S Giovanni Hospital, Univ of Turin, Turin, Italy
Background/Purpose: Incomplete B-cell and plasmablast depletion, as measured using highly sensitive flow cytometry (HSFC), is associated with lower response rates following rituximab in SLE [1].…
Abstract Number: 1571 • ACR Convergence 2020
Distinct T Cell Responses in Inflammatory Arthritis Associated with Combined CTLA-4 and PD-1 Inhibitor Therapy
Sang Kim¹, Jean Tayar², Maria Suarez-Almazor³, Huifang Lu⁴, Yang-Zhi Zhao⁵, Margarita Divenko⁵, William Padron⁵, Emma Rodriguez⁵, Sattva Neelapu⁵, Jennifer Wang⁵, Amish Shah⁵, Nizar Tannir⁵, Don Gibbons⁵, Guillermo Garcia-Manero⁵, Hussein Tawbi⁵, Patrick Hwu⁵, Andrew Futreal⁵, Adi Diab⁵ and Roza Nurieva⁵, ¹The Univesrity of Texas MD Andesron Cancer Center, Pearland, TX, ²The University of Texas, MD Anderson Cancer Center, Houston, TX, ³University of Texas MD Anderson Cancer Center, Houston, TX, ⁴MD Anderson, Houston, TX, ⁵MD Anderson, Houston
Background/Purpose: Despite of unprecedented clinical success in cancer therapeutics, immune checkpoint inhibitors (ICIs) are associated with immune-related adverse events (irAEs), including arthritis (arthritis-irAE). Arthritis-irAE can…
Abstract Number: 2043 • ACR Convergence 2020
Identification and Validation of Citrulline Specific TCRs in CD4+T Cells in Rheumatoid Arthritis
Ravi Kumar¹, Niyaz Yoosuf², Sanjay Boddul², Christina Gerstner³, Sara Turcinov⁴, Anatoly Dubnovitsky⁵, Fredrik Wermeling², Karine Chemin⁶ and Vivianne Malmström⁷, ¹Division of Rheumatology, Department of Medicine, Stickholm, Stockholms Lan, Sweden, ²Division of Rheumatology, Department of Medicine, Stockholm, Sweden, ³Division of Rheumatology, Department of Medicine,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden, ⁴Division of Rheumatology, Department of Medicine,Center for Molecular Medicine, Institutet, Stockholm, Sweden, ⁵Karolinska Institutet, Stockholm, ⁶Division of Rheumatology, Department of Medicine, Stockholm, Stockholms Lan, Sweden, ⁷Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: Citrulline (cit) autoimmunity is central in rheumatoid arthritis (RA), including both anti-citrulline protein antibodies (ACPA) and autoreactive CD4+ T cells. While the ACPA are…
Abstract Number: 0451 • ACR Convergence 2020
Prevalence, Therapy and Tumor Response in Patients with Rheumatic Immune-related Adverse Events Following Immune Checkpoint Inhibitor Therapy: A Single-Centre Analysis
Sophia Verspohl¹, Tobias Holderried¹, Charlotte Behning², Peter Brossart¹ and Valentin Schaefer³, ¹Clinic for Internal Medicine III, Department of Oncology, Hematology and Rheumatology, University Hospital Bonn, Germany, Bonn, Nordrhein-Westfalen, Germany, ²Institute for Medical Biometrics, Informatics and Epidemiology (IMBIE), University Hospital Bonn, Bonn, Germany, Bonn, Nordrhein-Westfalen, Germany, ³Clinic of Internal Medicine III, Department of Oncology, Hematology and Rheumatology, University Hospital Bonn, Germany, Bonn, Nordrhein-Westfalen, Germany
Background/Purpose: Immune checkpoint inhibitors (ICIs) have improved cancer therapy [1] by inducing a higher immune system activity and subsequent attack of tumor cells. However, this effect…

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