Quercetin inhibits p21-RAS expression in human colon cancer cell lines and in primary colorectal tumors

Advances in understanding preventive and therapeutic effects of quercetin against colon cancer and mechanisms involved

Quercetin can be extracted from many vegetables and fruits. Many studies have demonstrated that quercetin can suppress many kinds of cancer cells, such as breast, prostate, liver, esophageal and ovarian cancers. Quercetin not only inhibits proliferation and induces apoptosis of colon cancer cells but also reduces aberrant crypt foci in the colon. Currently, although the mechanisms underlying the inhibitory effect of quercetin against colon cancer cells are still unknown, it is believed that quercetin probably does have a broad modulatory effect on gene expression in colon cancer.