Figure 2.

Memory CD4⁺ and CD8⁺ T-cell subsets and CD28 expression in the lymph node between rejection and no rejection groups. (A) Frequencies of CD4⁺ CM T cells, (B) CD8⁺ CM T cells, (C) CD4⁺ EM T cells, (D) CD8⁺ EM T cells, (E) CD4⁺ EMRA T cells, (F) CD8⁺ EMRA T cells, (G) CD4⁺CD28^null T cells, and (H) CD8⁺CD28^null T cells within the lymph nodes are shown between the no rejection and rejection groups. Data are presented with individual percentages and medians. Significant differences were calculated and shown (*p < 0.05, **p ≤ 0.01, ***p ≤ 0.001). CM, central memory; EM, effector memory; EMRA, effector memory CD45RA⁺.