ArticleClinics (Sao Paulo, Brazil)2026
Elevated serum Slit3 independently predicts disease activity and interstitial lung disease in rheumatoid arthritis.
Article in Clinics (Sao Paulo, Brazil), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionRheumatoid Arthritis (RA) is a chronic inflammatory disease often linked to Interstitial Lung Disease (ILD). Slit guidance Ligand-3 (Slit3), a member of the axon guidance molecule superfamily, mediates a series of biological activities, including the regulation of the inflammatory response and fibrosis. This study explored Slit3's clinical significance as a serum biomarker for RA-ILD.
methodsBetween November 2022 and April 2024, patients diagnosed with RA were included in the Foshan First People's Hospital. The clinical data of patients were collected from hospital records, and the serum level of Slit3 was measured using an enzyme-linked immunosorbent assay. Logistic regression was employed to determine odds ratios for Slit3 and other indicators associated with the development of RA-ILD.
resultsIn total, 232 patients were included. Patients with RA in the high Slit3 subgroup were older, were more likely to be positive for rheumatoid factor and anti-cyclic citrullinated peptide antibody, and had higher levels of erythrocyte sedimentation rate and C-reactive protein. They also showed higher Disease Activity Scores (DAS28-CRP, DAS28-ESR, SDAI) as well as elevated pro-inflammatory cytokine interleukin-6. Notably, logistic regression analysis indicated that the elevated serum level of Slit3 was an independent predictor of RA-ILD.
conclusionsElevated serum level of Slit3 was associated with higher disease activity and served as an independent risk factor of RA-ILD. Slit3 may hold promise as a useful serum biomarker and therapeutic target for RA-ILD.
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