Asperpyrone-Type Bis-Naphtho--Pyrones with COX-2-Inhibitory Activities from Marine-Derived Fungus Aspergillus niger

文献类型： 外文期刊

第一作者： Fang, Wei

作者： Fang, Wei;Lin, Xiuping;Liu, Yonghong;Zhou, Xuefeng;Wang, Jianjiao;Tao, Huaming

作者机构：

关键词： bis-naphtho--pyrones;Aspergillus niger;COX-2-inhibitory;HPLC;MS

期刊名称：MOLECULES （ 影响因子：4.411； 五年影响因子：4.587 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Bis-naphtho--pyrones (BNPs) are an important group of aromatic polyketides derived from fungi, and asperpyrone-type BNPs are produced primarily by Aspergillus species. The fungal strain Aspergillus niger SCSIO Jcsw6F30, isolated from a marine alga, Sargassum sp., and identified according to its morphological traits and the internal transcribed spacer (ITS) region sequence, was studied for BNPs secondary metabolisms. After HPLC/MS analysis of crude extract of the fermentation broth, 11 asperpyrone-type BNPs were obtained directly and quickly by chromatographic separation in the extract, and those isolated asperpyrone-type BNPs were structurally identified by NMR and MS analyses. All of the BNPs showed weak cytotoxicities against 10 human tumor cells (IC50 > 30 M). However, three of them, aurasperone F (3), aurasperone C (6) and asperpyrone A (8), exhibited obvious COX-2-inhibitory activities, with the IC50 values being 11.1, 4.2, and 6.4 M, respectively. This is the first time the COX-2-inhibitory activities of BNPs have been reported.

分类号： O62

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