1. Association of Combined Anti‐Ro52/TRIM21 and Anti‐Ro60/SSA Antibodies With Increased Sjögren Disease Severity Through Interferon Pathway Activation.
- Author
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Bettacchioli, Eléonore, Saraux, Alain, Tison, Alice, Cornec, Divi, Dueymes, Maryvonne, Foulquier, Nathan, Hillion, Sophie, Roguedas‐Contios, Anne‐Marie, Benyoussef, Anas‐Alexis, Alarcon‐Riquelme, Marta E., Pers, Jacques‐Olivier, Devauchelle‐Pensec, Valérie, Beretta, Lorenzo, Vigone, Barbara, Jousse‐Joulin, Sandrine, Lauwerys, Bernard, Ducreux, Julie, Maudoux, Anne‐Lise, Vasconcelos, Carlos, and Tavares, Ana
- Subjects
RNA analysis ,LEUCOPENIA ,RESEARCH funding ,AUTOANTIBODIES ,IMMUNOGLOBULINS ,LYMPHOPENIA ,CELLULAR signal transduction ,SEVERITY of illness index ,DESCRIPTIVE statistics ,BLOOD sedimentation ,INTERFERONS ,LONGITUDINAL method ,HYPERGAMMAGLOBULINEMIA ,GENE expression profiling ,ARTHRITIS ,SJOGREN'S syndrome ,INFLAMMATION ,BIOMARKERS ,SEQUENCE analysis ,SYMPTOMS - Abstract
Objective: The biologic diagnosis of primary Sjögren disease (SjD) mainly relies on anti‐Ro60/SSA antibodies, whereas the significance of anti‐Ro52/TRIM21 antibodies currently remains unclear. The aim of this study was to characterize the clinical, serological, biologic, transcriptomic, and interferon profiles of patients with SjD according to their anti‐Ro52/TRIM21 antibody status. Methods: Patients with SjD from the European PRECISESADS (n = 376) and the Brittany Diagnostic Suspicion of primitive Sjögren's Syndrome (DIApSS); (n = 146) cohorts were divided into four groups: double negative (Ro52−/Ro60−), isolated anti‐Ro52/TRIM21 positive (Ro52+), isolated anti‐Ro60/SSA positive (Ro60+), and double‐positive (Ro52+/Ro60+) patients. Clinical information; EULAR Sjögren Syndrome Disease Activity Index, a score representing systemic activity; and biologic markers associated with disease severity were evaluated. Transcriptome data obtained from whole blood by RNA sequencing and type I and II interferon signatures were analyzed for PRECISESADS patients. Results: In the DIApSS cohort, Ro52+/Ro60+ patients showed significantly more parotidomegaly (33.3% vs 0%–11%) along with higher β2‐microglobulin (P = 0.0002), total immunoglobulin (P < 0.0001), and erythrocyte sedimentation rate levels (P = 0.002) as well as rheumatoid factor (RF) positivity (66.2% vs 20.8%–25%) compared to other groups. The PRECISESADS cohort corroborated these observations, with increased arthritis (P = 0.046), inflammation (P = 0.005), hypergammaglobulinemia (P < 0.0001), positive RF (P < 0.0001), leukopenia (P = 0.004), and lymphopenia (P = 0.009) in Ro52+/Ro60+ patients. Cumulative EULAR Sjögren Syndrome Disease Activity Index results further confirmed these disparities (P = 0.002). Transcriptome analysis linked anti‐Ro52/TRIM21 antibody positivity to interferon pathway activation as an underlying cause for these clinical correlations. Conclusion: These results suggest that the combination of anti‐Ro52/TRIM21 and anti‐Ro60/SSA antibodies is associated with a clinical, biologic, and transcriptional profile linked to greater disease severity in SjD through the potentiation of the interferon pathway activation by anti‐Ro52/TRIM21 antibodies. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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