In addition, it has been shown that PCNP mRNA can be detected in many types of cancer cells, such as HT-1080 fibrosarcoma cells, HepG2 hepatoma cells, and U-937 myeloid leukemia cells, indicating that PCNP might play an important role in cell proliferation and tumorigenesis [18, 19]. The gene discussed is PCNP; the disease is hepatocellular carcinoma.