MKI67 and neoplasm: Furthermore, smaller and lighter tumors, a lower percentage of Ki-67-positive PDAC cells, and more production of IFN-γ by CTLs in the tumor microenvironment were seen in the miR-506 PD1 group vs. other groups (n = 10 per group; ** p < 0.01, *** p < 0.001; Figure 7A–D).