Fig. 2

The percentages of GrB⁺CD19⁺B cells and TGF-β⁺CD19⁺B cells could differentiate rejection from non-rejection upon activation. Comparison of the production of IL-10, TGF-β and GrB in resting CD19⁺B cells (a–c) and in CD19⁺B cells stimulated with IgG + IgM in the presence of IL-21 (d–f) between liver transplant recipients with and without acute rejection. Bars represent mean and standard deviation. GrB, granzyme B