Analysis of Regulatory T Cell Subsets and Their Expression of Helios and PD-1 in Patients with Hashimoto Thyroiditis

Figure 4

PD-1 expression on Treg and Teffect cells. Representative flow cytometric plots of PD-1 staining in (a) Treg, (b) aTreg, and (c) CD45RO⁺Teffect cell from one HT patient. Difference of the percentage of PD-1 within (d) Treg cells, (e) sTreg cells, and (f) CD45RO⁺ Teffect cells among different groups (P < 0.05; P < 0.0075; P < 0.0001).

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