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Cytotoxic Triterpenoids from Roots of Actinidia chinensis
Liu-Bin Wei1, Si-Yuan Ma2, Hong-Xing Liu2,3
1College of Medicine, Guangxi University of Science and Technology, Liuzhou, 545006, P. R. China.
Abstract:
Phytochmical investigation of roots of Actinidia chinensisPlanch. led to the isolation triterpenoids 1 - 16, including a new compound 2α,3α,23,24-tetrahydroxyursa-12,20(30)-dien-28-oic acid (1). Their structures were identified on the basis of spectroscopic analysis, including 1D- and 2D-NMR, HR-ESI mass spectrometry, and by comparison with the literatures. The cytotoxicities of triterpenoids 1 - 16 against a panel of cultured human cancer cell lines (HepG2, A549, MCF-7, SK-OV-3, and HeLa) were evaluated. The new compound 1 exhibited moderate antitumor activities with IC50 values of 19.62 ± 0.81, 18.86 ± 1.56, 45.94 ± 3.62, 62.41 ± 2.29, and 28.74 ± 1.07 μm, respectively. The experiment data might be available to explain the use of roots of A. chinensis to treat various cancers in traditional Chinese medicine.
