Abstracts tagged "Animal Model"

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: 1767 • ACR Convergence 2021
CXCL5 Dampens Inflammation in Murine Lupus by Orchestral Suppression of Effector Cell Proliferation and Leukocyte Extravasation
Xiubo Fan¹, Chin Teck Ng¹, Dianyang Guo¹, Frances Lim¹, Annie Law², Julian Thumboo¹, William Hwang³ and Andrea Low¹, ¹Singapore General Hospital, Singapore, Singapore, ²Singhealth, Singapore, Singapore, ³National Cancer Centre Singapore, Singapore, Singapore
Background/Purpose: Systemic lupus erythematosus (SLE) is a potentially fatal autoimmune disease characterized by dysregulation of both innate and adaptive immunity. Current therapeutic options are limited,…
Abstract Number: 1890 • ACR Convergence 2021
Cellular Origin and Functions of Osteoclasts in Inflammatory Arthritis
Hannah Nelson¹, Ellen Gravallese², Julia Charles¹ and Christian Jacome-Galarza¹, ¹Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ²Brigham and Women's Hospital, Harvard Medical School, Chestnut Hill, MA
Background/Purpose: Inflammatory arthritis (IA) is an autoimmune disease targeting multiple joints and characterized by joint destruction caused by osteoclasts (OC), leading to physical disability. However,…
Abstract Number: 0028 • ACR Convergence 2021
Evolution of Anti-modified Protein Antibody Responses Can Be Driven by Consecutive Exposure to Different Post-translational Modifications
Mikhail Volkov, Arieke Kampstra, Karin van Schie, Tom WJ Huizinga, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Besides anti-citrullinated protein antibodies (ACPA), rheumatoid arthritis patients (RA) often display autoantibody reactivities against other post-translationally modified (PTM) proteins, more specifically carbamylated and acetylated…
Abstract Number: 1892 • ACR Convergence 2021
Promotion of Autoimmune Arthritis via Tryptophan Metabolism and Production of the Bacterial-Derived Tryptophan Metabolite Indole
Brandon Trent¹, Meagan Chriswell², Widian Jubair¹ and Kristine Kuhn¹, ¹University of Colorado Anschutz Medical Campus, Aurora, CO, ²UC Denver SOM, Denver, CO
Background/Purpose: Significant changes in gut bacterial richness and diversity occur during the development of inflammatory arthritis, in both murine models and human patients; however, the…
Abstract Number: 0055 • ACR Convergence 2021
Time Course of Intestinal Permeability and Intestinal Inflammation in Rat Adjuvant-induced Arthritis
Sophie Hecquet¹, Perle Totoson², Marie-Paule Algros³, Hélène Martin², Célian Peyronnel², Maude Tournier², Clement Prati¹, Daniel Wendling¹, Céline Demougeot² and Frank Verhoeven¹, ¹Service de rhumatologie, CHU de Besançon, Besançon, France, ²PEPITE EA4267, FHU INCREASE, Bourgogne Franche-Comté University, Besançon, France, ³Service d'anatomopathologie, CHU de Besançon, Besançon, France
Background/Purpose: Intestinal inflammation (I-Inf) and increased intestinal permeability (IP) and intestinal damage (ID) have been observed in patients with spondyloarthritis (SpA). However, whether these changes…
Abstract Number: 1928 • ACR Convergence 2021
In Vitro and In Vivo Evidence for DOCK8 as a Risk Allele for Cytokine Storm Syndrome, Including COVID-19 and MIS-C

Randy Cron¹, Mingce Zhang¹, Niansheng Chu², Devin Absher³, John Bridges¹, Amanda Schnell¹, Anshul Vagrecha⁴, Shannon Lozinsky⁴, Suchitra Acharya⁴, Carolyn Levy⁴, Winn Chatham¹ and Edward Behrens², ¹University of Alabama at Birmingham, Birmingham, AL, ²University of Pennsylvania, Philadelphia, PA, ³HudsonAlpha Institute for Biotechnology, Huntsville, AL, ⁴Hofstra/Northwell School of Medicine, Hempstead, NY
Background/Purpose: Cytokine storm syndromes (CSS) are frequently fatal complications of a variety of oncologic, rheumatic, and infectious diseases. Many patients with CSS possess heterozygous missense…
Abstract Number: 0058 • ACR Convergence 2021
Effect of Anti-inflammatory Drugs on Intestinal Epithelial Damage and Bacterial Translocation in the Adjuvant-induced Arthritis Model
Sophie Hecquet¹, Perle Totoson², Maude Tournier², Clement Prati¹, Daniel Wendling¹, Céline Demougeot² and Frank Verhoeven¹, ¹Service de rhumatologie, CHU de Besançon, Besançon, France, ²PEPITE EA4267, FHU INCREASE, Bourgogne Franche-Comté University, Besançon, France
Background/Purpose: The intestine is no longer considered as an organ targeted by spondyloarthritis (SpA) but also an actor of the disease alongside environmental and immunological…
Abstract Number: 0459 • ACR Convergence 2021
CCN1: An Angiogenic Actor Implicated in the Structural Damages of Rheumatoid Arthritis
Jerome Avouac¹, Alexia Steelandt², Olivia Amiar², Agathe Leblond², Cindy Orvain², Anne Cauvet², Virginie Gonzalez² and Yannick Allanore¹, ¹Université de Paris, Service de Rhumatologie, Hôpital Cochin, AP-HP.CUP, Paris, France, ²INSERM U1016, Institut Cochin, Paris, France
Background/Purpose: We have previously shown that decreased expression of the deacetylase sirtuin-1 (SIRT1) contributes to the proliferative, activated and proangiogenic profile of endothelial cells (EC)…
Abstract Number: 0976 • ACR Convergence 2020
Kidney-infiltrating T Cells in Murine Lupus Nephritis Exhibit Transcriptional Heterogeneity and Oligoclonal Expansion
Shuchi Smita¹, Minjung Kim¹, Maria Chikina¹, Mark Shlomchik¹ and Jeremy Tilstra¹, ¹University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Lupus nephritis (LN) is a hallmark of SLE, affecting 50-60% of patients within 10 years of diagnosis. Current treatments for LN have suboptimal response…
Abstract Number: 1221 • ACR Convergence 2020
Evaluation of Methotrexate Efficacy and Exploration of Metabolites Associated with Disease Activity in Collagen-induced Arthritis Mouse Model
Yu Kyoung Cho¹ and Ryan Funk¹, ¹UNIVERSITY OF KANSAS, Kansas City, KS
Background/Purpose: Methotrexate (MTX) is cornerstone of therapy for rheumatoid arthritis. However, response to MTX is variable and unpredictable among patients. Therefore, there is a critical…
Abstract Number: 1410 • ACR Convergence 2020
Resident Memory T Cells Persist in Joints of Anakinra-Treated Mice in Spontaneous Arthritis Model
Anais Levescot¹, Margaret Chang², Alexandra Wactor¹, Rachel Blaustein¹, Nathan Nelson-Maney¹, Robert Fuhlbrigge³ and Peter Nigrovic⁴, ¹Brigham and Women's Hospital, Boston, MA, ²Boston Children's Hospital, Boston, MA, ³University of Colorado, Denver, CO, ⁴Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA, Boston
Background/Purpose: Inflammatory arthritis is characterized by chronic inflammation of joints which can be suppressed with immunomodulatory therapy. However, two-thirds of patients will have an arthritis…
Abstract Number: 1447 • ACR Convergence 2020
Vitamin D Deficiency Enhances Antiphospholipid Antibody-Mediated Thrombosis in a Passive Immunization Mouse Model
Rohan Willis¹, Karen Roye-Green², Zurina Romay-Penabad¹, Elizabeth Papalardo¹, Alvaro Schleh³, Vijaya Murthy⁴, Monica Smikle² and Emilio Gonzalez¹, ¹University of Texas Medical Branch, Galveston, TX, ²University of the West Indies, Kingston, Jamaica, ³Antiphospholipid Standardization Laboratory, GALVESTON, TX, ⁴University of Texas Medical Branch, League City, TX
Background/Purpose: Abnormal vitamin D levels occur frequently in antiphospholipid (APS) patients and are correlated with thrombosis. It remains unclear however if vitamin D deficiency observed…
Abstract Number: 0173 • ACR Convergence 2020
mTORC1 Signaling Promotes Monocytosis and Arthritis Development in IL-1 Receptor Antagonist-deficient Mice
Zhengping Huang¹, Ying Li², Alexandra Wactor³, Peter Nigrovic⁴ and Pui Lee⁵, ¹1.Guangdong Second Provincial General Hospital;2.Brigham and Women's Hospital;3.Harvard Medical School, BOSTON, MA, ²1.Brandeis University;2.Brigham and Women's Hospital, Waltham, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA, Boston, ⁵1.Boston Children's Hospital;2.Brigham and Women's Hospital;3.Harvard Medical School, Newton, MA
Background/Purpose: Systemic juvenile idiopathic arthritis (sJIA) is potentially life-threatening disease characterized by prolonged fever, systemic inflammation and skin rash in addition to joint inflammation. Aberrant…
Abstract Number: 1453 • ACR Convergence 2020
A First in Class Therapeutic Nanoparticle for Specific Targeting of Anti-citrullinated Protein Antibody Ameliorates Serum Transfer and Collagen Induced Arthritis
Sangita Khatri¹, Jonas Hansen¹, Mads Clausen¹, Tue Wenzel Kragstrup², Shu-Chen Hung³, Elizabeth Mellins⁴ and Kira Astakhova¹, ¹Technical University of Denmark, Copenhagen, Denmark, ²Aarhus University, Aarhus, Denmark, ³Amgen, Thousand Oaks, ⁴Stanford University, Stanford, CA
Background/Purpose: Rheumatoid arthritis (RA) is an immune mediated inflammatory disease with autoimmune features, including antibodies to citrullinated proteins and peptides (ACPAs). Several in vitro studies…

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

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Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. Academic institutions, private organizations and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part a scientific presentation or presentation of additional new information that will be available at the time of the meeting) is under embargo until Saturday, November 11, 2023.

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