CP and hepatocellular carcinoma: GO and KEGG enrichment analysis showed that the six genes in HCC were mainly enriched in biological process such as embryonic hemopoiesis, positive regulation of vascular endothelial growth factor receptor signaling pathway, mammary gland lobule development, and mammary gland alveolus development; cellular component such as axon cytoplasm, tertiary granule lumen, secondary lysosome, and condensed chromosome; molecular function such as ferric iron binding, oxidoreductase activity, oxidizing metal ions, oxygen as acceptor, ferroxidase activity, histone deacetylase binding.