CCK-8 results showed that the proliferation of NB cells in the miRNA326-5p overexpression group was significantly lower than that in the control group, while the proliferation rate of cells in the miRNA326-5p and DKC1 overexpression group was significantly higher than that in the miRNA326-5p overexpression group, again confirming the targeted regulation of miRNA326-5p and DKC1. Here, DKC1 is linked to neuroblastoma.