As shown in Figure 3A, the qPCR results showed that the values of STAM/TP53 and PLOD2/CDKN1B in the HCC cell lines HepG2 and Hep3B were significantly higher than in the normal liver cell line HL7702, which further supported the significance of our model. The gene discussed is PLOD2; the disease is hepatocellular carcinoma.