Anti-proliferative effects of raw and steamed extracts of Panax notoginseng and its ginsenoside constituents on human liver cancer cells.
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BACKGROUND
Panax notoginseng is a potential source of anticancer compounds. This study aims to investigate the effects of steaming on the chemical profile of P. notoginseng and the anti-proliferative effects of P. notoginseng on liver cancer cells.
METHODS
Samples of powdered raw P. notoginseng roots were steamed for various durations. Extracts of the raw and steamed samples were subjected to ultra-high pressure liquid chromatography/mass spectrometry (UHPLC-MS) analysis for chemical profiling. The anti-proliferative effects on three human liver cancer cells, namely SNU449, SNU182 and HepG2, were evaluated using colorimetric WST-1 assay.
RESULTS
Steaming changed chromatographic and pharmacological profiles of P. notoginseng, causing differences in activities such as inhibition of cancer growth. Steamed P. notoginseng exhibited greater anti-proliferative effects against liver cancer cells (SNU449, SNU182 and HepG2) than its raw form; steaming up to 24 hours increased bioactivities. Steaming increased the concentrations of ginsenoside Rh2, Rk1, Rk3 and 20S-Rg3 and enhanced growth inhibition of liver cancer cells.
CONCLUSIONS
Steaming changes the chemical profile as well as anti-cancer biological activities of P. notoginseng. Steamed P. notoginseng contains potential compounds for the treatment of liver cancer.
