Figure 4. ZnC up-regulated PD-L1 expression via decreasing miR-570. (A) qRT-PCR results of PD-L1 in ZnC and PBS group. (B) Western blot of PD-L1 in ZnC and PBS group. (C–G) qRT-PCR results of the changes of miRNAs caused by ZnC to CRC cells. *p < 0.05, ** P < 0.01, ***P < 0.001.