Abstracts tagged "immunology"

Abstract Number: 1092 • ACR Convergence 2021
Altered Metabolic Pathways in Synovial Fibroblasts of Individuals at Risk of Developing Rheumatoid Arthritis
Tineke de Jong¹, Simone Denis¹, Paul Tak², Riekelt Houtkooper¹ and Lisa van Baarsen¹, ¹Amsterdam UMC, Amsterdam, Netherlands, ²Candel Therapeutics, Cambridge, United Kingdom
Background/Purpose: Cellular metabolism has been studied in fibroblast-like synoviocytes (FLS) of rheumatoid arthritis (RA) and osteoarthritis (OA) patients and raises the question whether observed metabolic…
Abstract Number: 0437 • ACR Convergence 2021
Factors Associated with Reduced Immunogenicity of the BNT162b2 mRNA COVID-19 Vaccine in Patients with Autoimmune Inflammatory Rheumatic Diseases (AIIRD) Treated with Rituximab
Victoria Furer¹, Tali Eviatar², Devy Zisman³, Hagit Peleg⁴, Daphna Paran⁵, David Levartovsky¹, Ilana Kaufman⁶, Michael Zisapel¹, Ofir Elalouf⁷, Roni Meidan¹, Adi Broyde⁸, Ari Polachek⁹, Jonathan Wollman⁷, Katya Meridor¹⁰, Hila Nochomovitz¹, Adi Silberman¹, Dana Rosenberg¹, Joy Feld¹¹, Amir Haddad¹², Tal Gazitt¹³, Muna Elias³, Nizar Hijaze¹⁴, Fadi Kharouf⁴, Gabi Shefer¹, Orly Sharon¹, Sara Pel¹, Sharon Nevo¹ and Ori Elkayam¹⁵, ¹Tel Aviv Sourasky Medical Center, Tel Aviv, Israel, ²Tel Aviv Sourasky Medical Center, Givataim, Israel, ³Carmel Medical Center, Haifa, Israel, ⁴Hadassah Medical Center, Jerusalem, Israel, ⁵Tel Aviv Sourasky Medical Center-Ichilov Hospital, Even Yehuda, Israel, ⁶Tel Aviv Sourasky Medical Center, Petach Tiqwa, Israel, ⁷Tel Aviv Medical Center, Herzliya, Israel, ⁸Tel Aviv Sourasky Medical Center, KIBBUTZ GIVAT HAIM I, Israel, ⁹Sourasky Medical Center, Petah-Tikva, Israel, ¹⁰Tel Aviv Sourasky Medical Center, Kfar Saba, Israel, ¹¹Carmel and Zvulun Medical Centre, Haifa, Israel, ¹²Carmel Medical Centre, Haifa, Israel, ¹³Carmel Hospital, Haifa, Israel, ¹⁴Carmel medical centre, Tamra, Israel, ¹⁵Tel Aviv Medical Center, Tel Aviv, Israel
Background/Purpose: Rituximab (RTX) has been associated with impaired humoral response to vaccination. This study aim was to identify the predictors for a lack of humoral…
Abstract Number: 1224 • ACR Convergence 2021
Low CD39 Expression on B Cells Predicts the Occurrence of Anti-Drug Antibodies in RA Patients Treated with Rituximab
Samuel Bitoun¹, Bineta Ly², Signe Hässler³, Audrey Paoletti⁴, Aude Gleizes⁵, Salima Hacein-Bey⁵, Philippe Bröet³, Marc Pallardy⁶ and Xavier Mariette⁷, ¹Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Université Paris-Saclay, INSERM UMR 1184 FHU CARE, Paris, France, ²INSERM U1184, Université Paris Saclay, Le Kremlin Bicêtre, France, ³CESP, INSERM UMR 1018, Universite Paris-Saclay, Villejuif, France, ⁴INSERM U1184, Université Paris Saclay, le kremlin bicetre, France, ⁵Hôpital Bicètre, APHP, Université Paris-Saclay, Le Kremlin Bicêtre, France, ⁶Faculté de Pharmacie, Université Paris-Saclay, Chatenay Mallabry, France, ⁷Université Paris- Saclay, Rheumatology, Paris, France
Background/Purpose: Anti-Drug antibodies (ADAb) are well studied and have an impact on response to treatment with monoclonal anti-TNF biologics. Rituximab treatment has an important immunogenic…
Abstract Number: 0439 • ACR Convergence 2021
Predictors of Rheumatic Immune-related Adverse Events and de Novo Inflammatory Arthritis After Immune Checkpoint Inhibitor-treatment for Cancer
Amy Cunningham-Bussel¹, Jiaqi Wang², Lauren Prisco³, Lily Martin², Kathleen Vanni², Alessandra Zaccardelli², Mazen Nasrallah⁴, Lydia Gedmintas², Lindsey MacFarlane⁵, Nancy Shadick⁶, Mark M. Awad⁷, Osama E. Rahma⁷, Nicole LeBoeuf⁸, Ellen Gravallese⁹ and Jeffrey Sparks², ¹Brigham and Women's, Brookline, MA, ²Brigham and Women's Hospital, Boston, MA, ³Brigham and Women's Hospital, Pound Ridge, MA, ⁴MGH, Somerville, MA, ⁵Brigham and Women's Hospital, Brookline, MA, ⁶Brigham & Women's Hospital, Boston, MA, ⁷Dana-Farber Cancer Institute, Boston, ⁸Brigham and Women's Hospital, Department of Dermatology, Boston, MA, ⁹Brigham and Women's Hospital, Harvard Medical School, Chestnut Hill, MA
Background/Purpose: Immune-related adverse events (irAEs) are a frequent and serious complication of immune checkpoint inhibitor (ICI) treatment for cancer, which can resemble primary rheumatic diseases.…
Abstract Number: 1250 • ACR Convergence 2021
Abatacept and Other DMARDs Have Common Transcriptomic Effects on RA Synovial Tissue
Clément TRIAILLE¹, Tatiana SOKOLOVA¹, Gaëlle TILMAN¹, Laurent MERIC de BELLEFON², Christine GALANT³, Patrick DUREZ⁴, Bernard LAUWERYS⁵ and Nisha LIMAYE⁶, ¹Pôle de pathologies rhumatismales systémiques et inflammatoires, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium, ²Service de Rhumatologie, Cliniques Universitaires Saint-Luc, Brussels, Belgium, ³Service d’Anatomie Pathologique, Cliniques Universitaires Saint-Luc, Brussels, Belgium, ⁴Pôle de Recherche en Rhumatologie, Institut de Recherche Expérimentale et Clinique, Brussels, Belgium, ⁵UCB Pharma, Brussels, Belgium, ⁶Genetics of Autoimmune Diseases and Cancer, de Duve Institute, Université catholique de Louvain, Brussels, Belgium
Background/Purpose: Our goal was to assess histological and transcriptomic effects of Abatacept (ABA) on RA synovium, and to compare them with previously published data obtained…
Abstract Number: 0461 • ACR Convergence 2021
Plasmablast-derived Autoantibodies from Individuals At-risk for RA That Target RA-relevant Antigens Are Polyreactive with Arthritogenic Bacteria
Meagan Chriswell¹, Jennifer Seifert², Michelle Bloom³, Cliff Rims⁴, Marie Feser⁵, Kevin Deane⁶, Jill Norris⁷, Eddie James⁸, Jane Buckner⁹, William Robinson¹⁰, V. Michael Holers¹¹ and Kristine Kuhn¹², ¹UC Denver SOM, Denver, CO, ²University of Colorado School of Medicine, Littleton, CO, ³Stanford University, Redwood City, CA, ⁴Benaroya Research Institute, Seattle, WA, ⁵University of Colorado Denver, Aurora, CO, ⁶University of Colorado Denver, Denver, CO, ⁷Colorado School of Public Health, Aurora, CO, ⁸Benaroya Research Institute at Virginia Mason, Monroe, WA, ⁹Benaroya Research Institute at Virginia Mason, Seattle, WA, ¹⁰Stanford University, Palo Alto, CA, ¹¹University of Colorado, Denver, CO, ¹²University of Colorado Anschutz Medical Campus, Aurora, CO
Background/Purpose: Circulating autoantibodies like ACPA frequently develop years before symptoms of RA, during which the individual is at-risk for disease. Several lines of evidence suggest…
Abstract Number: 1484 • ACR Convergence 2021
B Cell Intracellular IFNβ as a Unique Cellular Marker for the Development of Lupus Nephritis
Fatima Alduraibi¹, Huma Fatima¹, Winn Chatham², Hui-Chen Hsu¹ and John Mountz¹, ¹University of Alabama Birmingham, Birmingham, AL, ²University of Alabama at Birmingham, Birmingham, AL
Background/Purpose: Our laboratory previously demonstrated a strong association of B cell intracellular interferon beta (IFNβ) with the development of anti-Smith/ribonuclear protein (Sm/RNP), anti-DNA, and lupus…
Abstract Number: 0471 • ACR Convergence 2021
Therapeutic Efficacy of BT-104, an Oral LANCL2 Agonist, for the Treatment of Systemic Lupus Erythematosus
Andrew Leber, Raquel Hontecillas, Nuria Tubau-Juni, Sarah Fitch, Jyoti Chauhan and Josep Bassaganya-Riera, Landos Biopharma, Blacksburg, VA
Background/Purpose: Systemic lupus erythematosus is a complex disease in which the immune system is dysfunctional at multiple levels including impaired regulatory responses, altered self-antigen processing…
Abstract Number: 1503 • ACR Convergence 2021
Putting the Pieces on the Board: Mapping SLE Nephritis Biopsies from the Accelerating Medicines Project Using High-Density Immunofluorescence Imaging
Craig Smuda¹, Anna Eichinger², Robert Clancy², Jill Buyon³ and Boris Reizis⁴, ¹NYU Grossman School of Medic ine, New York, NY, ²NYU Grossman School of Medicine, New York, NY, ³NYU School of Medicine, New York, NY, ⁴New York University Grossman School of Medicine, New York, NY
Background/Purpose: The Accelerating Medicines Project (AMP) has enabled significant increases in understanding of SLE nephritis pathology, providing a profile of dozens of leukocyte subsets within…
Abstract Number: 0534 • ACR Convergence 2021
Lymphatic Dysfunction in Murine Lupus Photosensitivity
William Ambler¹, Noa Schwartz², Jin Yeon Shin³, Rahgu Kataru⁴, Camila Carballo⁵, Scott Rodeo⁶, Babak Mehrara⁴ and Theresa Lu⁷, ¹Division of Pediatric Rheumatology, Department of Rheumatology, Hospital for Special Surgery. HSS Research Institute, Hospital for Special Surgery, New York, NY, ²Department of Medicine, Division of Rheumatology, Albert Einstein College of Medicine, New York, NY, ³Department of Surgery, Division of Plastic and Reconstructive Surgery Memorial Sloan Kettering, New York, NY, ⁴Department of Surgery, Division of Plastic and Reconstructive Surgery, Memorial Sloan Kettering, New York, NY, ⁵HSS Research Institute, Hospital for Special Surgery, New York, NY, ⁶HSS Research Institute, Hospital for Special Surgery; Department of Orthopedics, Hospital for Special Surgery, New York, NY, ⁷Hospital for Special Surgery, New York, NY
Background/Purpose: The lymphatic system is composed of vessels which carry fluid, soluble molecules, and cells from peripheral tissue to draining lymph nodes. Photosensitivity, an exaggerated…
Abstract Number: 1507 • ACR Convergence 2021
Role of CD4+ T Cells in the Pathogenesis of RA: Immunization with Citrullinated T Cell Epitopes Is Sufficient to Induce Immunological and Clinical Manifestations of Arthritis in DR4-Transgenic Mice
Elena Tonti¹, Bhargavi Duvvuri², Sudeshna Dhar¹, Derek Haaland³, Maggie Larche¹ and Mark Larché¹, ¹McMaster University, Hamilton, ON, Canada, ²University of Washington, Seattle, WA, ³McMaster University, Hamilton, Ontario and The Waterside Clinic, Oro Medonte, ON, Canada
Background/Purpose: Although the etiology of rheumatoid arthritis (RA) remains unclear, existing research suggests a complex interplay of both genetic and environmental factors. Citrullinated proteins/peptides, and…
Abstract Number: 0010 • ACR Convergence 2021
Relaxed Peripheral Tolerance Drives Broad de Novo Autoreactivity in Severe COVID-19
Matthew Woodruff¹, Richard Ramonell², Ankur Singh Saini², Mark Rudolph³, F. Eun-Hyung Lee² and Iñaki Sanz⁴, ¹Emory University, Decatur, GA, ²Emory University, Atlanta, GA, ³Exagen Inc., Vista, CA, ⁴Emory University School of Medicine, Atlanta, GA
Background/Purpose: An emerging feature of COVID-19 is the identification of autoreactivity in patients with severe disease that may contribute to disease pathology, however the origins…
Abstract Number: 0539 • ACR Convergence 2021
Vgll3-transgenic Autoimmune Mice Display Features of Cutaneous Fibrosis
Mehrnaz Gharaee-Kermani¹, Allison Billi², Marisa Hildebrandt², Jacob Martens³, Rachael Wasikowski², Joanne (Michelle) Kahlenberg¹ and Johann Gudjonsson², ¹Internal Medicine - Division of Rheumatology and Department of Dermatology, University of Michigan, Ann Arbor, MI, ²Department of Dermatology, University of Michigan, Ann Arbor, MI, ³Graduate Program in Immunology, University of Michigan, Ann Arbor, MI, USA, Ann Arbor, MI
Background/Purpose: Fibrosis is characterized by collagen deposition, fibro/myofibroblast accumulation, and extracellular matrix remodeling and can lead to disfiguring skin changes. In cutaneous lupus, scar formation…
Abstract Number: 1509 • ACR Convergence 2021
Pharmacological Inhibition of MALT1 Reverses Activation-Induced Metabolic Reprogramming and Ameliorates Autoimmune Pathogenesis in Multiple Animal Models of Chronic Inflammation
Subhabrata Biswas, Mya Steadman, Ynes Helou, Katherine Sellers, Keng Soh, Aditi Chalishazar, Mehmet Badur, Joanna DiSpirito, Brian DeChristopher, John Monroe, Dania Rabah, Barbara Fox and Andy Long, Rheos Medicines, Inc, Cambridge, MA
Background/Purpose: Current therapies for autoimmune and inflammatory diseases generally target select disease nodes, often failing to produce durable clinical remission. Chronic inflammation is associated with…
Abstract Number: 0015 • ACR Convergence 2021
Rheumatoid Factor Recognizes Specific Domains of IgG Heavy Chain Complexed with HLA Class II Molecules
Shanshan Zhang¹, Hideaki Tsuji¹, Hui Jin², Koji Kitagori¹, Shuji Akizuki³, Kosaku Murakami¹, Ran Nakashima¹, Hajime Yoshifuji¹, Masao Tanaka¹, Hisashi Arase², Koichiro Ohmura⁴ and Akio Morinobu¹, ¹Kyoto University, Kyoto, Japan, ²Osaka University, Osaka, Japan, ³Kyoto Universtiy, Kyoto City, Japan, ⁴Kobe City Medical Center General Hospital, Kobe, Japan
Background/Purpose: Rheumatoid factor (RF) is an autoantibody that binds to IgG Fc region (CH2 and CH3 domains) and is detectable in patients with rheumatoid arthritis…

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