文章基本信息

标题：Cytotoxic Rocaglate Derivatives from Leaves of Aglaia perviridis
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作者：Fa-Liang An ; Xiao-Bing Wang ; Hui Wang 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2016
卷号：6
DOI：10.1038/srep20045
出版社：Springer Nature
摘要：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.