FIGURE 5.

Decrease in protein kinase, DNA‐activated, catalytic polypeptide (PRKDC) levels can inhibit promotion of miRNA‐218‐5p‐inhibitor on growth of radiation‐resistant lung carcinoma cells. (a) MTT assay was used to evaluate changes in the number of cells surviving metabolically after cotransfection of the miRNA‐218‐5p‐inhibitor and si‐PRKDC. (b) Colony‐forming experiments were performed to evaluate changes in cell survival of reproductive integrity after cotransfection of the miRNA‐218‐5p‐inhibitor and si‐PRKDC. *p < 0.05; **p < 0.01