The levels of NRF2 were higher in cancer cell lines, especially in C33A in comparison to HCK1T (fold change ~2.3, p < 0.05, Student's t-test), followed by a smaller upregulation in SiHa in comparison to HCK1T (fold change ~1.4, p < 0.05, Student's t-test) (Figure 6(b)). Here, NFE2L2 is linked to cancer.