The HCC clones expressed higher mRNA levels of HCC markers Krt18 (keratin 18, encodes CK18) and Fuca1 (alpha-L-fucosidase, encodes AFU) (Wells et al., 1997; Wang et al., 2014) than Hepa1-6 cells (Supplementary Figures S1F,G). Here, KRT18 is linked to hepatocellular carcinoma.