Background
Behçet’s disease (BD) is a chronic systemic vasculitis disease affecting many systems and presented with heterogeneous manifestations. No standard marker for BD diagnosis and monitoring its activity. The soluble urokinase plasminogen activator receptor (suPAR) is a membrane-bound glycoptotein that is primarily expressed on the surface of immunologically active cells; mirroring local inflammation and immune activation.
Aim
of the work.
To assess plasma suPAR in BD patients compared with healthy controls. In addition to analyze its association with BD clinical features, disease activity and damage index.
Patients and methods
The study included 50 BD patients and 40 controls, disease activity was assessed using an Arabic version of the Behçet’s Disease Current Activity Form (Ar-BDCAF). The damage events in BD patients were determined by Behçet’s disease damage index (BDI). Plasma suPAR level was measured by Enzyme linked immunosorbent assay (ELISA).
Results
The study included 50 BD patients; 41 males and 9 females, with a mean age of 34.9 ± 8.1 years and disease duration 6.8 ± 0.6 years. The mean Ar-BDCAF was 3.24 ± 0.42 (0–13) and BDI was 5.04 ± 0.48 (0–12). Plasma suPAR level in BD patients (0.97 ± 0.11; 0.55–4.86) ng/ml was significantly higher than in controls (0.53 ± 0.1; 0.32–0.69), p < 0.001. The optimum cut-off value for suPAR to predict BD was > 0.67 with accuracy 88 %, sensitivity 82 %, specificity 94 %, p < 0.001. There was a significant correlation between plasma suPAR level in BD patients and Ar-BDCAF (r = 0.81, p < 0.001).
Conclusion
Plasma suPAR level may serve as a promising marker that can be helpful in diagnosis and monitoring disease activity of BD patients.
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