FIG. 2.
sCD127 inhibits IL-7 signaling and IL-7–mediated T-cell proliferation. A: Representative fluorescence-activated cell sorting (FACS) plot showing pSTAT5 and pAkt of gated CD4+ T cells from PBMCs cultured with IL-7 (1 ng/mL) in the absence or presence of sCD127 (100 ng/mL). B: MFI (y-axis) of pSTAT5 and pAkt in CD4+ and CD8+ T cells from PBMCs from healthy subjects and patients with T1D cultured with medium, IL-7 (1 ng/mL), and IL-7 + sCD127 (100 ng/mL); n = 6 samples. C: Representative FACS plot showing proliferation of gated CD4+ T cells from CFSE-labeled PBMCs cultured for 5 days with GAD65 (5 μg/mL) and IL-7 (1 ng/mL) in the presence or absence of sCD127 (100 ng/mL). D: Proliferation of gated CD4+ T cells (%CD4+CFSEdim, y-axis) from healthy subjects and patients with T1D stimulated with medium, GAD65 (5 mg/mL), TT (40LFU), and anti-CD3/CD28–coated beads (αIFN; 1:100 bead/T cell ratio) in medium, IL-7 (1 ng/mL), and IL-7 + sCD127 (100 ng/mL); n = 9 samples. *P < 0.05, **P < 0.01, ***P < 0.001. Lines in B and D represent means.
