期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 64, 期 1, 页码 253-261出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.5b05450
关键词
ginsenosides; Rh2; octyl ester derivative; cellular uptake; apoptosis; ROS; mitochondria
资金
- National Natural Science Foundation of China [31360370]
- Foundation of Jiangxi Educational Committee [GJJ14092]
- Research Program of State Key Laboratory of Food Science and Technology, Nanchang University [SKLF-ZZA-201303]
- Research Foundation for Young Scientists of State Key Laboratory of Food Science and Technology, Nanchang University, China [SKLF-QN-201515]
Our previous research had indicated that the octyl ester derivative of ginsenoside Rh2 (Rh2-O) might have a higher bioavailability than Rh2 in the Caco-2 cell line. The aim of this study was to investigate the cellular uptake and antitumor effects of Rh2-O in human HepG2 cells as well as its underlying mechanism compared with Rh2. Results showed that Rh2-O exhibited a higher cellular uptake (63.24%) than Rh2 (36.76%) when incubated with HepG2 cells for 24 h. Rh2-O possessed a dose- and time-dependent inhibitory effect against the proliferation of HepG2 cells. The IC50 value of Rh2-O for inhibition of HepG2 cell proliferation was 20.15 mu M, which was roughly half the value of Rh2. Rh2-O induced apoptosis of HepG2 cells through a mitochondrial-mediated intrinsic pathway. In addition, the accumulation of ROS was detected in Rh2-O-treated HepG2 cells, which participated in the apoptosis of HepG2 cells. Conclusively, the findings above all suggested that Rh2-O as well as Rh2 inducing HepG2 cells apoptosis might involve similar mechanisms; however, Rh2-O had better antitumor activities than Rh2, probably due to its higher cellular uptake.
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