Abstract
Berberine is sourced from multiple medicinal herb resources and is easy to extract. With the advantages of low price, safety and convenience, berberine may have potential for wide clinical use. The present study aimed to investigate whether berberine inhibited the viability of colon cancer and whether it regulated the three-gene network microRNA (miR)-21-integrin β4 (ITGβ4)-programmed cell death 4 (PDCD4). It was demonstrated that berberine treatment suppressed colon cancer cell viability, and induced apoptosis and activated caspase-3 activity in the human colon carcinoma HCT116 cell line. Berberine inhibited miR-21 expression and promoted ITGβ4 and PDCD4 protein expression in the HCT116 cell line. Overexpression of miR-21 reduced the anti-cancer effects of berberine on cell viability, apoptosis rate and caspase-3 activity of the HCT116 cell line. However, it was revealed that the overexpression of miR-21 also suppressed ITGβ4 and PDCD4 protein expression in the HCT116 cell line. In conclusion, miR-21, ITGβ4 and PDCD4 are involved in the anti-cancer effects of berberine on cell viability and apoptosis in the HCT116 cell line.
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