Journal
LIFE-BASEL
Volume 11, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/life11080858
Keywords
gomisin L1; Schisandra berry; ovarian cancer; apoptosis; ROS; NOX
Categories
Funding
- National Research Foundation of Korea (NRF) [NRF-2019R1A2C2011213]
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The lignan gomisin L1 from Schisandra berries demonstrates antitumor activity in human ovarian cancer cells by inducing apoptotic cell death through regulation of intracellular ROS production via NOX.
The fruits of Schisandra chinensis (Schisandra berries) are used as health food supplements and popular food ingredients in East Asia. Lignans, major and characteristic polyphenol compounds of Schisandra berries, possess various biological activities, including hepatoprotective and anticancer effects. However, the biological activities of gomisin L1, a lignan isolated from Schisandra berries, are less to be investigated. In this study, the antitumor activity of gomisin L1 and its underlying molecular mechanism in human ovarian cancer cells were investigated. Gomisin L1 exhibited potent cytotoxic activity against A2780 and SKOV3 ovarian cancer cells. Flow cytometry analysis revealed that the growth inhibitory effects of gomisin L1 were mediated by the induction of apoptosis. Furthermore, gomisin L1 induced an increase in intracellular reactive oxygen species (ROS) levels, and the antioxidant N-acetyl cysteine significantly negated gomisin L1-induced cell death. Moreover, inhibition of NADPH oxidase (NOX) using an inhibitor and siRNA attenuated gomisin L1-induced death of, and ROS production in, human ovarian cancer cells. Taken together, these data indicate that the lignan gomisin L1 from Schisandra berries induces apoptotic cell death by regulating intracellular ROS production via NOX.
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