Figure 2 shows (Figure 2A) that human liver cancer cells expressed TFRC at a level that varied approximately 6.2- to 7.6-fold, with the lowest expression being found in α-fetoprotein- and EPCAM-negative SK-HEP1 cells as compared to α-fetoprotein- and EPCAM-positive PLC/PRF/5, Hep3B, and HepG2 cells [23, 24]. Here, TFRC is linked to liver cancer.