Fig. S6.

Act-A–iTr1 cells express the chemokine receptor CCR7. (A) Representative FACS plots showing chemokine receptor levels on human CD4⁺ T cells following stimulation with activin-A or control (PBS) in the presence of allergen-loaded APCs. (B) Cumulative data depict the percentages of chemokine receptor-expressing CD4⁺ T cells. Data are shown as mean ± SEM and are pooled from n = 8 independent experiments (n = 8 donors). Statistical significance was obtained by the Student's t test (**P < 0.01).