Activation of AMP-activated Protein Kinase on Human Gastric Cancer Cells by Apoptosis Induced by Corosolic Acid Isolated from Weigela subsessilis

作者：Lee Myung Sun; Lee Chang Min; Cha Eun Young; Thuong Phuong Thien; Bae KiHwan; Song In Sang; Noh Seung Moo; Sul Ji Young^*

来源：Phytotherapy Research, 2010, 24(12): 1857-1861.

DOI：10.1002/ptr.3210

• corosolic acid
• gastric cancer
• AMPK
• apoptosis

Corosolic acid is one of the triterpenoids present in the leaves of Weigela subsessilis. The antidiabetic activity of corosolic acid has been reported previously, but to date, the anticancer effects on gastric cancer have been poorly studied. In this study, corosolic acid showed growth inhibition on SNU-601 human gastric cancer cells, with an IC(50) value of 16.9 +/- 2.9 mu M. Corosolic acid also triggered the activation of caspase-3 and poly (ADPribose) polymerase, while it was recovered by Z-VAD-FMK. Moreover, the cell growth/apoptosis activities of corosolic acid were regulated by the AMP-activated protein kinase-mammalian target of rapamycin (AMPK-mTOR) signals. These results showed that corosolic acid-mediated AMPK activation leads to inhibition of mTOR, thus providing a possible mechanism of action of corosolic acid in the inhibition of cancer cell growth and the induction of apoptosis.

• 出版日期2010-12
• 单位河北医科大学