Finally, we explored the association between MCM2 and the prognosis of HCC using the K-M method in terms of survival data obtained from TCGA LIHC dataset (Fig. 1h), the dataset from the First Affiliated Hospital of Guangxi Medical University (Fig. 1i), and the GSE14520 dataset (Fig. 1j). Here, MCM2 is linked to hepatocellular carcinoma.