Studies have found that the hepatitis B virus X protein (HBx), which is a multifunctional protein encoded by the HBx gene, is involved in the metastasis of hepatitis B-related HCC, and since TXNIP overexpression enhances the migration of HepG2 cells, this suggests that HBV-related HCC is mediated by the HBx protein promoting the expression of TXNIP (71). The gene discussed is TXNIP; the disease is Hepatitis.