NFE2L2 and cervical carcinoma: Accumulating evidence has shown that the anticancer effects of pterostilbene against cervical cancer are associated with the induction of apoptosis by activating the endoplasmic reticulum (ER)/nuclear factor erythroid 2-related factor 2 (Nrf2) pathway and downregulating the HPV oncoprotein E6 that causes the degradation of tumor suppressor protein p53 [17,33].