AFP and hepatocellular carcinoma: The study had found genes related to the prognosis of HCC, including DEAD-box helicase 24 (DDX24), cleavage and polyadenylation specific factor 2 (CPSF2), tetratricopeptide repeat domain 26 (TTC26), TATA-box binding protein associated factor 3 (TAF3), alpha fetoprotein (AFP), etc. These genes can affect the biological behavior of HCC through different mechanisms, including cell proliferation, apoptosis, invasion, and metastasis.