Fig 6. Bcl-6 expression was significantly higher on CD4⁺IL-21⁺ T cell subset than CD4⁺IL-21^- T cells.

PFCs were stimulated with E/C peptides. IL-21 and Bcl-6 expression by CD4⁺ T cells was evaluated by FACS. (A) CD4⁺IL-21⁺ and CD4⁺IL-21^- T cells were gated. The expression of Bcl-6 on CD4⁺IL-21⁺ and CD4⁺IL-21^- T cells is shown. Data are representative of five independent experiments. (B) Statistical results of Bcl-6 expression on IL-21⁺ and IL-21^- CD4⁺ T cells. *** p<0.001.