Abstracts tagged "Biomarkers"

Abstract Number: 1488 • ACR Convergence 2024
Clinical Utility and Performance of Anti-C1q Antibodies for Systemic Lupus Erythematosus: Comparative Analysis of Three Different Assays
Mariana Gonzalez-Trevino¹, MeLea Hetrick¹, Alain Sanchez-Rodriguez², Ali Duarte-Garcia¹ and Anne Tebo³, ¹Mayo Clinic, Rochester, MN, ²Mayo Clinic College of Medicine and Science, Rochester, MN, ³Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
Background/Purpose: SLE is an autoimmune disorder characterized by autoantibody-mediated tissue damage. Antibodies against C1q (anti-C1q) can identify patients with LN and rising titers predict renal…
Abstract Number: 1691 • ACR Convergence 2024
Treatment Response Biomarkers for Systemic Sclerosis-Associated Interstitial Lung Disease
Elizabeth Volkmann¹, Holly Wilhalme², Donald Tashkin², Grace Kim², Jonathan Goldin², Alana Haussmann², Masataka Kuwana³, Michael Roth² and Shervin Assassi⁴, ¹University of California, Department of Medicine, Los Angeles, CA, USA, Los Angeles, ²UCLA, Los Angeles, ³Department of Allergy and Rheumatology, Nippon Medical School, Tokyo, Japan, Tokyo, Japan, ⁴UTHealth Houston Division of Rheumatology, Houston, TX
Background/Purpose: Despite the expanding treatment landscape for systemic sclerosis-associated interstitial lung disease (SSc-ILD), the lack of early and valid treatment response biomarkers (measurable in the…
Abstract Number: 2045 • ACR Convergence 2024
Descriptive Study on the Use of Serum Levels of Immunoglobulin G4, Immunoglobulin E and Eosinophil Count as Serum Biomarkers Across Four Clinical Phenotypes of IgG4-Related Disease
Vineetha Philip¹, Soudabeh Daliri², Alma Aveytia Camacho², Ruba Memon³, Myriam Guevara² and Sarah Kazzaz⁴, ¹Houston Methodist Hospital, Sugar Land, TX, ²Houston Methodist, Houston, TX, ³Houston Methodist, Missouri City, TX, ⁴Houston Methodist Hospital, Houston, TX
Background/Purpose: IgG4 – Related Disease (IgG4-RD) is a multisystem immune-mediated fibroinflammatory disorder that can affect nearly any organ and can mimic other inflammatory conditions, malignancy…
Abstract Number: 2280 • ACR Convergence 2024
Development of a Blood-based Cell-free DNA Classifier Assay to Predict Biologic and Targeted Synthetic DMARDs Response in Rheumatoid Arthritis Patients (PRIMA-102)
Peter C. Taylor¹, Kevin Lai², Hsin-Ta Wu², Jason Carlson², Diana Abdueva³, Signe Fransen⁴, Alan Kivitz⁵, Gordon Lam⁶ and David Chernoff⁷, ¹University of Oxford, Oxford, United Kingdom, ²Aqtual Inc, Hayward, CA, ³Aqtual Inc., Hayward, CA, ⁴Aqtual Inc., sf, CA, ⁵Altoona Center for Clinical Research, Duncansville, PA, ⁶Arthritis and Osteoporosis Consultants of the Carolinas, Cornelius, NC, ⁷SetPoint Medical, Sausalito, CA
Background/Purpose: Matching most beneficial targeted therapy to rheumatoid arthritis (RA) patients with inadequate response or intolerance to current treatment is an important unmet clinical need. The…
Abstract Number: 2456 • ACR Convergence 2024
High Levels of Circulating IFNα Are Associated with Increased Mortality in Patients with Diffuse Cutaneous Systemic Sclerosis
François Maillet¹, Carine Schmidt¹, Vincent Bondet², Alexandre Bense¹, Darragh Duffy³, Luc Mouthon¹, Mathieu Paul Rodero⁴ and Benjamin Chaigne⁵, ¹AP HP, Paris, France, ²INSERM PAsteur Institute, Paris, France, ³Inserm Pasteur Institue, Paris, France, ⁴Université Paris CIté, Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Faculté des Saint-Pères, Paris, France, ⁵Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes et Autoinflammatoires Rares d'Ile de France de l’Est et de l’Ouest, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, Ile-de-France, France
Background/Purpose: Systemic sclerosis (SSc) is a connective tissue disease characterized by skin and organ fibrosis, autoimmunity, and vasculopathy. Although its pathophysiology remains unclear, recent data…
Abstract Number: 2668 • ACR Convergence 2024
Do Levels of anti-Jo1 Autoantibodies Have a Prognostic Role? Longitudinal Assessment of anti-Jo1 and HisRS Protein Levels in a Cohort of anti-Jo1 Positive Patients with Anti-synthetase Syndrome
Silvia Cavalli¹, Fabricio Espinosa-Ortega², Ryan A. Adams³, Lauren Guy³, Charlotta Preger⁴, Càtia Fernandes-Cerqueira⁵, Roberto Caporali⁶, Ingrid Lundberg⁷ and Antonella Notarnicola⁸, ¹University of Milan, Milan, Milan, Italy, ²Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet; Department of Gastro, Dermatology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden, Stockholm, Stockholms Lan, Sweden, ³aTyr Pharma, 3545 John Hopkins Court, Suite 250, San Diego, CA, ⁴Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet;5Structural Genomics Consortium, Stockholm, Sweden, Stockholm, Stockholms Lan, Sweden, ⁵4Dcell, Montrueil, Ile-de-France, France, ⁶Department of Clinical Sciences and Community Health, University of Milan, and Department of Rheumatology and Medical Sciences, ASST Gaetano Pini-CTO, Milan, Italy, ⁷Karolinska Universitetssjukhuset, Karolinska Institutet, Stockholm, Sweden, ⁸Karolinska University Hospital and Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: The anti-Jo1 autoantibody (aJo1), targeting the histidyl-tRNA synthetase (HisRS) protein, is the most common diagnostic biomarker of the anti-synthetase syndrome (ASSD). So far, conflicting…
Abstract Number: 0066 • ACR Convergence 2024
Association Between Gut Microbiota, Inflammation, and Epigenetics in Rheumatoid Arthritis Patients
jose Manuel Lisbona-Montañez¹, Arkaitz Mucientes², Patricia Ruiz-Limón³, Gracia María Martín-Nuñez⁴, Rocio Redondo-Rodríguez⁴, Laura Cano-García⁴, Sara Manrique-Arija⁵, Isabel Moreno-Indias², Natalia Mena Vázquez⁶ and Antonio Fernández-Nebro⁷, ¹University of Malaga, Malaga, Andalucia, Spain, ²IBIMA Plataforma BIONAND, Malaga, Andalucia, Spain, ³IBIMA, Instituto de Biomedicina de Málaga, Cordoba, Spain, ⁴IBIMA Plataforma Bionand, Malaga, Spain, ⁵Biomedical Research Institute of Malaga (IBIMA)-Bionand Platform, Department of Rheumatology, Regional University Hospital of Malaga, Malaga, Spain, ⁶IBIMA, Málaga, Andalucia, Spain, ⁷Department of Rheumatology, Hospital Universitario de Málaga, Málaga, Andalucia, Spain
Background/Purpose: The etiology of rheumatoid arthritis (RA) is not entirely known. Epigenetic modifications could be the link between genetic and environmental factors related to the…
Abstract Number: 0392 • ACR Convergence 2024
Evaluation for the Presence of Antibodies to Malondialdehyde-Acetaldehyde Adduct in Juvenile Idiopathic Arthritis and Its Subtypes
Geoffrey Thiele¹, Panteha Hayati Rezvan², Michal Cidon², Carlos Hunter³, Michael Duryee³, Ted Mikuls³ and Geoffrey Thiele³, ¹Children's Hospital of Los Angeles, Omaha, NE, ²Children's Hospital of Los Angeles, Los Angeles, CA, ³University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Studies of rheumatoid arthritis (RA) have shown that malondialdehyde-acetaldehyde (MAA) protein adducts and anti-MAA immune responses play a pathogenic role in disease progression. Expression of…
Abstract Number: 0524 • ACR Convergence 2024
Evaluating Dose Reduction of Biologic Treatments in Rheumatoid Arthritis: Predicting Flares Using Clinical and Molecular Biomarkers
Laura Galindo Domínguez¹, Belen Acasuso², Vanesa Balboa-Barreiro³, Juan Fernández-Tajes², Juan Cañete⁴, Benjamin Fernández-Gutiérrez⁵, Isidoro González-Álvaro⁶, José L Pablos⁷, Carmen Bejerano-Herreria⁸, Maite Silva-Díaz⁹, Franciso javier De-Toro-Santos², Natividad Oreiro¹⁰ and francisco J Blanco¹¹, ¹Instituto de Investigacion Biomedica de A Coruña (INIBIC), A Coruña, Spain, ²Unidad de Investigacion Clinica. Grupo de Investigación de Reumatología (GIR). Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas., Investigation, A Coruña, Spain, A Coruña, Spain, ³Unidad de Epidemiología Clínica y Bioeostadística. Instituto de Investigación Biomédica de A Coruña (INIBIC). Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC)., A Coruña, Spain, ⁴Hospital Clinic an IDIBAPS, Barcelona, Spain, ⁵3Rheumatology Department, and Health Research Institute (IdISSC), Hospital Clínico San Carlos, Calle del Profesor Martín Lagos, s/n, 28040, Madrid, Spain., Rheumatology, Madrir, Spain, Madrid, Madrid, Spain, ⁶University Hospital La Princesa, Madrid, Madrid, Spain, ⁷Health ministry, Madrid, Madrid, Spain, ⁸Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁹Complejo Hospitalario Universitario de A Coruña, A Coruña, Spain, ¹⁰CHUAC, La Coruna, Galicia, Spain, ¹¹INIBIC-University of A Coruña, A Coruña, Spain
Background/Purpose: Reducing the dosage of biologic drugs in patients with rheumatoid arthritis (RA) who have achieved remission is a viable and necessary strategy. To identify…
Abstract Number: 0666 • ACR Convergence 2024
Interferon-stimulated Genes on Peripheral CD8+ T Cells of SLE Patients Were the Keys for Early Response to BAFF/APRIL-targeted Therapy
Cuiling Fan¹, Shixian Chen² and Juan Li¹, ¹Department of Rheumatology and Immunology, Nanfang Hospital, Southern Medical University, Guangzhou, China, Guangzhou, China (People's Republic), ²Nanfang Hospital, Southern Medical University, guangzhou, China (People's Republic)
Background/Purpose: Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease. BAFF/APRIL-targeted therapy exert therapeutic effects through the inhibition of B-cell activating factor (BAFF) and a…
Abstract Number: 0803 • ACR Convergence 2024
Serum Adipokines and Interstitial Lung Disease in a Prospective Rheumatoid Arthritis Cohort
Anna Haggart¹, Joshua Baker², Tate Johnson³, Yangyuna Yang³, Punyasha Roul⁴, Katherine Wysham⁵, grant Cannon⁶, Gary Kunkel⁷, Dana Ascherman⁸, Paul Monach⁹, Gail Kerr¹⁰, Andreas Reimold¹¹, Michael Duryee³, Geoffrey Thiele³, Ted Mikuls³ and Bryant England³, ¹University of Nebraska Medical Center, Omaha, ²University of Pennsylvania, Philadelphia, PA, ³University of Nebraska Medical Center, Omaha, NE, ⁴UNMC, Omaha, NE, ⁵VA PUGET SOUND/UNIVERSITY OF WASHINGTON, Seattle, WA, ⁶University of Utah and Salt Lake City VA, Salt Lake City, UT, ⁷University of Utah and George E Wahlen VAMC, Salt Lake City, UT, ⁸Division of Rheumatology and Clinical Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA, ⁹VA Boston Healthcare System, Boston, MA, ¹⁰Washington DC VAMC/Georgetown and Howard Universities, Washington, DC, ¹¹Dallas VA Medical Center, Dallas, TX
Background/Purpose: Adipokines are metabolic cytokines shown to be dysregulated in RA and prognostic of RA-related complications such as cardiovascular disease. Similarly, aberrations in adipokines have…
Abstract Number: 0906 • ACR Convergence 2024
Proteomic Signatures of Difficult-to-Treat Rheumatoid Arthritis: Identifying Predictive Biomarkers
Klára Mocová¹, Jiri Baloun¹, Aneta Prokopcová², Kristýna Brábníková Marešová¹, Herman Mann³, Jiří Vencovský², Karel Pavelka⁴ and Ladislav Šenolt², ¹Institute of Rheumatology, Prague, Czech Republic, ²Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ³Revmatologický ústav, Praha, Czech Republic, ⁴Institute of Rheumatology and Charles University, Praha, Czech Republic
Background/Purpose: Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by persistent synovial inflammation, progressive joint destruction and extra-articular manifestations. Despite the advancements in the…
Abstract Number: 1222 • ACR Convergence 2024
Large Language Model-driven Sentiment Analysis for Facilitating Fibromyalgia Diagnosis
Vincenzo Venerito and Florenzo Iannone, Rheumatology Unit- University of Bari "Aldo Moro", IT, Bari, Italy
Background/Purpose: Fibromyalgia (FM) is a complex disorder with widespread pain and emotional distress, posing diagnostic challenges. FM patients show altered cognitive and emotional processing, with…
Abstract Number: 1490 • ACR Convergence 2024
Multi-centered Clinical Validation of T Cell-bound C4d (TC4d) and T Cell Autoantibodies (TIgG and TIgM): Sensitive and Specific Biomarkers of SLE with Enhanced Accuracy Compared to Conventional SLE Tests
Vasileios Kyttaris¹, Andrew Concoff², Touba Warsi³, Sepehr Taghavi³, Sudha Kumar³, Stanley Park³, Abigail Patalinghug³, Christine Schleif³, Brittany Partain⁴, Joseph Ahearn⁵, Nicole Wilson⁶, Chau-Ching Liu⁶, Susan Manzi⁶ and Tyler O'Malley⁷, ¹BIDMC, Boston, MA, ²Exagen, Inc., Los Angeles, CA, ³Exagen, Carlsbad, CA, ⁴Exagen, Boston, MA, ⁵Allegheny Health Network, Wexford, PA, ⁶Allegheny Health Network, Pittsburgh, PA, ⁷Exagen, Vista, CA
Background/Purpose: Conventional SLE diagnostic markers lack sensitivity and are biased towards severe disease, resulting in a subset of clinically ambiguous ANA-positive but specific autoantibody-negative patients.…
Abstract Number: 1709 • ACR Convergence 2024
Sex Differences in Serum Proteomic Profiles of Males and Females with Psoriatic Arthritis
Steven Dang¹, Xianwei Li², Liqun Diao², Joan Wither³, Igor Jurisica⁴, Vinod Chandran⁵ and Lihi Eder⁶, ¹Women's College Hospital, Institute of Medical Science, University of Toronto, Toronto, ON, Canada, ²Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, ON, Canada, ³University Health Network, Toronto, ON, Canada, ⁴Departments of Medical Biophysics and Computer Science and Faculty of Dentistry, University of Toronto and Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia, Toronto, ON, Canada, ⁵University of Toronto, Toronto, ON, Canada, ⁶University of Toronto, Women’s College Hospital and Department of Medicine, Toronto, ON, Canada
Background/Purpose: Psoriatic arthritis (PsA) affects males and females equally, but differences exist in the clinical presentation and treatment response. The biological mechanisms driving these differences…

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