NFKB1 and colorectal carcinoma: Dihydromyricetin, a flavonoid compound (belonging to polyphenols) extracted from the Japanese raisin tree (Hovenia dulcis), could inhibit both MRP2 expression and its promoter activity by inhibiting NF‐κB‐Nrf2 signaling in HCT116/L‐OHP and HCT‐8/VCR cell lines, contributing to the reversal of L‐OHP/VCR‐resistant CRC cells.107