Our group recently reported the identification of another protein kinase CK2 inhibitor, E9, showing cytotoxic effects on human hepatoma (HepG-2) and pancreatic carcinoma (Panc-1) cell lines with corresponding IC50 values of 19 and 30 μM, respectively, [69]. The gene discussed is CSNK2A1; the disease is hepatocellular carcinoma.