The transcriptional levels of the top 10 core genes in HCC. Compared the transcription of NCAPG, NUF2, CCNB1, KIF11, BUB1B, RRM2, TTK, CCNB2, CCNA2 and MELK of HCC tissues with the normal tissues (UALCAN). LIHC represents liver hepatocellular carcinoma. ****, p < 0.0001.