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Natural Product Research 2020-Nov

Cytotoxic and anti-tumor effects of 3,4- seco-lupane triterpenoids from the leaves of Eleutherococcus sessiliflorus against hepatocellular carcinoma

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Haohao Wang
Wenliu Yu
Danfeng Zhang
Yan Zhao
Chen Chen
Hongyan Zhu
Enbo Cai
Zhaowei Yan

Nøgleord

Abstrakt

A rich of 3,4-seco-lupane triterpenoids (3,4-SLT), including chiisanoside (CSS), divaroside (DVS), sessiloside-A1 (SSA), chiisanogenin (CSG), sessiligenin (SSG), were isolated from the ethanol extract of the leaves of Eleutherococcus sessiliflorus (LES). The present study was performed to explore the cytotoxic and anti-tumor effects of the isolated five ones, as well as potential molecular mechanisms. The results of a CCK-8 assay demonstrated that these 3,4-SLT can inhibit the growth of HepG2 cells, and SSG showed the most significant cytotoxicity. Hoechst 33258 fluorescence staining and Annexin V-FITC/PI staining indicated that 3,4-SLT in LES can induce HepG2 cell apoptosis effectively. The AutoDock Vina program was used to simulate molecular docking of drugs and targets to discuss possible pharmacological mechanisms. Besides, western blot and qRT-PCR results indicated that SSG can inhibit PI3K/AKT signaling pathway through controlling multi-targets. This study suggested that 3,4-SLT might become a new research hotspot for antineoplastic drugs.

Keywords: Eleutherococcus sessiliflorus; 3,4-seco-lupane triterpenoids; anti-tumor; molecule docking.

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