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Cytotoxic Rocaglate Derivatives from Leaves of Aglaia perviridis.


ABSTRACT: Rocaglates are a series of structurally complex secondary metabolites with considerable cytotoxicity that have been isolated from plants of the Aglaia genus (Meliaceae). A new rocaglate (aglapervirisin A, 1) and its eight new biosynthetic precursors of rocaglate (aglapervirisins B-J, 2-9) together with five known compounds, were isolated from the leaves of Aglaia perviridis. Their structures were elucidated based on a joint effort of spectroscopic methods [IR, UV, MS, ECD, 1D- and 2D-NMR, HRESIMS], chemical conversion and single-crystal X-ray diffraction. Among these isolates, three (1, 10-11) were silvestrols, a rare subtype rocaglates, exhibiting notable cytotoxicity against four human tumor cell lines, with IC50 values between 8.0 and 15.0?nM. Aglapervirisin A (1) induces cell cycle arrest at the G2/M-phase boundary at concentration 10?nM accompanied by reductions in the expression levels of Cdc2 and Cdc25C in HepG2 cells after 72h co-incubation, and further induces the apoptosis of HepG2 cells at concentrations over 160?nM.

SUBMITTER: An FL 

PROVIDER: S-EPMC4730247 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature

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Cytotoxic Rocaglate Derivatives from Leaves of Aglaia perviridis.

An Fa-Liang FL   Wang Xiao-Bing XB   Wang Hui H   Li Zhong-Rui ZR   Yang Ming-Hua MH   Luo Jun J   Kong Ling-Yi LY  

Scientific reports 20160128


Rocaglates are a series of structurally complex secondary metabolites with considerable cytotoxicity that have been isolated from plants of the Aglaia genus (Meliaceae). A new rocaglate (aglapervirisin A, 1) and its eight new biosynthetic precursors of rocaglate (aglapervirisins B-J, 2-9) together with five known compounds, were isolated from the leaves of Aglaia perviridis. Their structures were elucidated based on a joint effort of spectroscopic methods [IR, UV, MS, ECD, 1D- and 2D-NMR, HRESIM  ...[more]

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