Healthy donor summary of granzyme A and B expression in cellular subtypes. (A) Data summary of granzyme A and B expression in unstimulated and stimulated (ConA/IL-2) human CD4⁺, CD8⁺, and CD56⁺ lymphocyte subsets. (B) Data summary of granzyme A and B expression in resting CD56⁺CD8⁺ T-cell and CD56⁺CD8^- NK cell subsets. Data are representative of 6 or more donor samples. P values are as shown. NS indicates not significant. Horizontal bars represent the mean of each data set.