Abstracts tagged "Autoantibody(ies)"

Abstract Number: 2325 • ACR Convergence 2023
Longitudinal ANA Titers in SLE and ANA-associated Rheumatic Diseases
Emily Littlejohn¹, Lingxuan Kong², Lu Wang² and Emily Somers², ¹Cleveland Clinic, Cleveland, OH, ²University of Michigan, Ann Arbor, MI
Background/Purpose: Antinuclear antibodies (ANAs) are a hallmark of systemic lupus erythematosus (SLE) and also a marker of subclinical autoimmunity. While a seminal study using the…
Abstract Number: 0064 • ACR Convergence 2023
Correlation of Anti-DFS70 Autoantibodies by ELISA with HEp-2 Cells DFS Pattern by IFA
Vincent ricchiuti¹, Michael Nappi², Kelly Chun², Ajay Grover¹ and Rubio Punzalan², ¹Labcorp, Dublin, OH, ²Labcorp, Calabasas, CA
Background/Purpose: The discovery and characterization of the dense fine speckled (DFS, ICAP AC-2) nuclear pattern of antinuclear autoantibodies (ANA) detected in HEp-2 cells by indirect…
Abstract Number: 0576 • ACR Convergence 2023
Enhancing Systemic Lupus Erythematosus Diagnosis: Comparative Performance Characteristics of TC4d and Anti-T-Cell Antibodies with Conventional Biomarkers
Andrew Concoff¹, Vasileios Kyttaris², Vaneet Sandhu³, Tyler O'Malley⁴, Giorgio Casaburi⁴, Sudha Kumar⁴, Chau Ching Liu⁵, Susan Manzi⁶ and Joeseph Ahearn⁵, ¹Exagen, Los Angeles, CA, ²BIDMC, Boston, MA, ³Loma Linda University, Loma Linda, CA, ⁴Exagen, Vista, CA, ⁵Allegheny Health Network, Pittsburgh, PA, ⁶Lupus Center of Excellence, Autoimmunity Institute, Allegheny Health Network, Pittsburgh, PA
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a chronic, systemic autoimmune disease, affecting multiple organ systems with varying severity among patients. SLE presents a diagnostic challenge…
Abstract Number: 0910 • ACR Convergence 2023
17β-estradiol and B-cell Intrinsic Type I Interferon Amplify Toll-like Receptor 7 Signaling Loop in B Cells of Female Lupus Prone BXD2 Mice
Kathryn Sullivan, Yong Wang, Winn Chatham, John Mountz and Hui-chen Hsu, University of Alabama at Birmingham, Birmingham, AL
Background/Purpose: While systemic lupus erythematosus (SLE) disproportionally affects women versus men, elevation in estradiol (E2) alone is not sufficient to promote the development of autoantibody…
Abstract Number: 1375 • ACR Convergence 2023
The Relative Burden of Fatigue Is Associated with High TSH/fT4 Ratio in Korean Patients with Primary Sjogren’s Syndrome
Jee-in Lee¹, Se Rim Choi², You-Jung Ha², Eun Ha Kang³, Keun-Suh Kim⁴, Joon Young Hyon⁵ and Yun Jong Lee⁶, ¹Seoul National University of Bundang Hospital, Seongnam, South Korea, ²Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnamsi, South Korea, ³Seoul National University Bundang Hospital, Seongnam, South Korea, ⁴Department of Periodontology, Section of Dentistry, Seoul National University Bundang Hospital, Seongnamsi, South Korea, ⁵Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnamsi, South Korea, ⁶Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam-si, South Korea
Background/Purpose: To investigate the prevalence of anti-thyroid autoantibodies, abnormal thyroid function, and their clinical impacts in Korean patients with primary Sjögren's syndrome (pSS). Methods: One…
Abstract Number: 1766 • ACR Convergence 2023
Inflammatory Priming of the Joints via Pre-activation of Macrophages by Anti-MAA Antibodies in Rheumatoid Arthritis
Marcelo Afonso¹, Jitong Sun¹, Koji Sakuraba¹, Anca Catrina¹, Aase Hensvold², Caroline Grönwall¹ and Bence Réthi¹, ¹Karolinska Institutet, Stockholm, Sweden, ²Division of Rheumatology, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet. Center for Rheumatology, Academic Specialist Center, Stockholm, Sweden
Background/Purpose: We have previously shown that certain malondialdehyde/acetaldehyde modified protein binding autoantibodies (anti-MAA), obtained from the inflamed joints of rheumatoid arthritis (RA) patients, induced osteoclast…
Abstract Number: 2350 • ACR Convergence 2023
Upregulation of Both APRIL and BAFF in Systemic Lupus Erythematosus Suggests Non-Redundant Roles, Further Revealed by Dual Inhibition with Povetacicept (ALPN-303; TACI vTD-Fc)
Tiffany Blair, Elizabeth Repash, Armand Bankhead, Amanda Enstrom, Lawrence Evans, Susan Debrot, Allison Chunyk, Sherri Mudri, Stanford Peng and Stacey Dillon, Alpine Immune Sciences, Inc., Seattle, WA
Background/Purpose: B cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL) are cytokines that signal through transmembrane activator and CAML interactor (TACI), B cell maturation…
Abstract Number: 0099 • ACR Convergence 2023
Cell-bound Complement Activation Products in Antiphospholipid Antibody-positive Patients Without Other Systemic Autoimmune Diseases
Doruk Erkan¹, JoAnn Vega¹, Tyler O'Malley² and Andrew Concoff³, ¹Hospital for Special Surgery, New York, NY, ²Exagen, Vista, CA, ³Exagen, Los Angeles, CA
Background/Purpose: Based on animal models, complement activation is part of Antiphospholipid Syndrome (APS) pathogenesis. However, studies investigating complement activation in antiphospholipid antibody (aPL)-positive patients are…
Abstract Number: 0581 • ACR Convergence 2023
Performance Characteristics of a Novel, Fully Automated Multiplexed Immunoassay Microarray Prototype for the Serological Detection of Eleven IgG Autoantibodies Commonly Found in Connective Tissue Diseases
Daphne Bijlsma, Ewa Lukasik, Michael Hausmann, Gerber Gomez, Christine Ginocchio and Emmanuel Moreau, Quotient Suisse SA, Eysins, Switzerland
Background/Purpose: Detection of autoantibodies is key for the identification and prognosis of patients with connective tissue diseases (CTD); however, some current testing methods are manual,…
Abstract Number: 0917 • ACR Convergence 2023
Role of Immunoglobulin Polygenic Risk in Systemic Lupus Erythematosus
Victor Gothefors-Holm¹, Sarah Reid¹, Ahmed Sayadi¹, Maija-Leena Eloranta¹, Martina Frodlund², Karoline Lerang³, Andreas Jonsen⁴, Solbritt Rantapää-Dahlqvist⁵, Anders Bengtsson⁴, Anna Rudin⁶, Oyvind Molberg³, Christopher Sjöwall², Johanna Sandling¹, Lars Rönnblom¹ and Dag Leonard¹, ¹Rheumatology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden, ²Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection/Rheumatology, Linköping University, Linköping, Sweden, ³Department of Rheumatology, Oslo University Hospital, Oslo, Norway, ⁴Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden, ⁵Department of Public Health and Clinical Medicine/Rheumatology, Umeå University, Umeå, Sweden, ⁶Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
Background/Purpose: Systemic lupus erythematosus (SLE) is a chronic systemic autoimmune disease partly characterized by production of autoantibodies, causing inflammation and tissue damage. In this study…
Abstract Number: 1448 • ACR Convergence 2023
Association of Disease Activity and Anti-Double Stranded DNA Antibodies Titers with Echocardiographic Parameters in Systemic Lupus Erythematosus Patients
Natalia Guajardo-Jauregui¹, Iris Colunga², José Ramón Azpiri-López², Dionicio A. Galarza-Delgado², Jesus Alberto Cardenas-De la Garza³ and Rosa Arvizu-Rivera⁴, ¹Hospital Universitario Dr. José Eleuterio González, Monterrey, Mexico, ²Hospital Universitario UANL, Monterrey, Mexico, ³Hospital Universitario "Dr. José Eleuterio González", San Nicolas, Mexico, ⁴Hospital Universitario "Dr. José Eleuterio Gonzalez", Escobedo, Mexico
Background/Purpose: Systemic lupus erythematosus (SLE) is a chronic inflammatory disease that involves the deposition of immunocomplexes on vital organs, including the heart. Cardiovascular disease is…
Abstract Number: 1809 • ACR Convergence 2023
Clinical Outcome and Antibody Responses Following the Surge of SARS-CoV-2 Omicron Infection Among Patients with Systemic Autoimmune Diseases
Zhu Chen¹, nan xiang¹, Qian Wang¹, Yuwei Li¹, Huizhi Jin¹, Guosheng Wang¹, Xiaomei Li², Tengchuan Jin¹ and Wei Bao¹, ¹University of Science and Technology of China, Hefei, China, ²University of Science and Technology of China, Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei, China
Background/Purpose: The surge of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant Omicron infections has affected most Chinese residents at the end of 2022, including…
Abstract Number: 2405 • ACR Convergence 2023
Role of Mitochondria in Activation of Platelets in Giant Cell Arteritis
Despoina Michailidou¹, Peter Grayson², Payton Hermanson¹, Jorge Armando Gonzalez-Chapa¹, David Cuthbertson³, Nader A. Khalidi⁴, Curry Koening⁵, Carol Langford⁶, Carol McAlear⁷, Larry Moreland⁸, Christian Pagnoux⁹, Philip Seo¹⁰, Antoine G Sreih¹¹, Kenneth Warrington¹², Paul Monach¹³, Peter Merkel⁷ and Christian Lood¹, ¹University of Washington, Seattle, WA, ²National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Chevy Chase, MD, ³University of South Florida, Tampa, FL, ⁴McMaster University, Hamilton, ON, Canada, ⁵University of Texas Dell Medical School, Austin, TX, ⁶Cleveland Clinic, Cleveland, OH, ⁷University of Pennsylvania, Philadelphia, PA, ⁸University of Colorado, Denver, CO, ⁹Mount Sinai Hospital, Toronto, ON, Canada, ¹⁰Johns Hopkins University, Baltimore, MD, ¹¹Bristol Myers Squibb, Princeton Pike, NJ, ¹²Mayo Clinic, Rochester, MN, ¹³VA Boston Healthcare System, Boston, MA
Background/Purpose: We recently found extracellular mitochondrial-derived N-formyl methionine in patients with giant cell arteritis (GCA. Extracellular mitochondria can be extruded by several mechanisms, including platelet…
Abstract Number: 0101 • ACR Convergence 2023
Non-Criteria Antiphospholipid Antibodies and Calprotectin as Potential Biomarkers in Pediatric Antiphospholipid Syndrome
Elizabeth Sloan¹, Katarina Kmetova², NaveenKumar K. Somanathapura², Lyndsay Kluge², Emily Chong², Claire Hoy², Srilakshmi Yalavarthi², Jacqueline Madison², Cyrus Sarosh², Lynnette Walters³, Jeanine Baisch⁴, Jessica Turnier², Virginia Pascual⁴, Tracey Wright¹, Jason Knight², Ayesha Zia¹ and Yu Zuo², ¹UT Southwestern, Dallas, TX, ²University of Michigan, Ann Arbor, MI, ³Scottish Rite Hospital for Children, Dallas, TX, ⁴Weill Cornell Medicine, New York, NY
Background/Purpose: While classification criteria for pediatric APS are not yet available, recent research suggests pediatric APS patients are unique, and many present with extra-criteria manifestations…
Abstract Number: 0602 • ACR Convergence 2023
Dual Blockade of ICOS and CD28 with Acazicolcept (ALPN-101) Reveals Non-Redundant Roles of T Cell Co-Stimulation Pathways in Systemic Lupus Erythematosus
Elizabeth Repash, Tiffany Blair, Amanda Enstrom, Lawrence Evans, Susan Debrot, Katherine Lewis, Armand Bankhead, Stanford Peng and Stacey Dillon, Alpine Immune Sciences, Inc., Seattle, WA
Background/Purpose: CD28 and inducible T cell costimulator (ICOS) play nonredundant roles in T cell activation and inhibiting these pathways can ameliorate an (auto)immune response. Systemic…

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.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].