Kit (23227; Thermo Fisher Scientific, Lithuania). The antibodies used in this
study were mouse anti-human Foxp3 (1:1,000, #ab20034; Abcam, UK), rabbit
anti-Helios (1:1,000, #42427T; CST, USA), rabbit anti-STAT5 (1:1,000, #ab126832;
Abcam, UK), rabbit anti-phosphorylated-STAT5 (p-STAT5, 1:1,000, #ab32364; Abcam,
UK), rabbit anti-JAK3 (1:1000, #8827T; CST, USA), and rabbit
anti-phosphorylated-JAK3 (1:1000, #8827S; CST, USA). Mouse anti-beta-actin
(1:5,000, #66009-1-Ig; Proteintech, Rosemount, IL, USA) was used as an internal
control. The blots were visualized using enhanced chemiluminescence (ECL;
BioRad, California, USA). Band intensity was analyzed using Quantity One
software.