IL10 and peeling skin syndrome: A significantly higher amount of IL-10 was detected in supernatants of stimulated PBMCs from patients with IgG4-RD compared to HC and pSS patients (70.6 ± 29.1 pg/ml versus 20.8 ± 3.8 and 24.2 ± 9.2 pg/ml; p = 0.009 and p = 0.03, respectively) (Figure 2C).