NFKB1 and colorectal carcinoma: Since NF-κB can regulate the expression of COX-2, to investigate the mechanism of the anticancer activity with a focus on colorectal carcinoma of vitexin, HT-29 cells were grown in well plates, and after treating the cells in the above four ways for 48 h, and the expression of NF-κB was detected by Western blot.