New anti-inflammatory guaianes from the Atlantic hydrotherm-derived fungus Graphostroma sp. MCCC 3A00421.

New anti-inflammatory guaianes from the Atlantic hydrotherm-derived fungus Graphostroma sp. MCCC 3A00421.
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来自大西洋温水源真菌 Graphostroma sp MCCC 的新型抗炎愈创木酚 3A00421

DOI:
10.1038/s41598-017-18841-6
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发表时间:
2018-01-11
期刊:
影响因子:
4.6
通讯作者:
Yang XW
Yang XW
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Niu S;Xie CL;Xia JM;Luo ZH;Shao Z;Yang XW

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从深海来源的真菌Graphostroma sp. MCCC 3A00421中分离得到9种新的瓜亚内酯类化合物(graphostromanes A - I,1 - 9)以及4种已知化合物(10 - 13)。其相对构型主要通过对核磁共振(NMR)和高分辨率电喷雾质谱(HRESIMS)数据的详细分析确定,而绝对构型则通过X射线晶体学和改进的Mosher法确定。评估了所有分离物对脂多糖(LPS)诱导的RAW264.7巨噬细胞中一氧化氮(NO)产生的抑制作用。Graphostromanes F(6)显示出显著的抑制作用,半数抑制浓度(IC₅₀)值为14.2 μM,甚至强于阳性对照氨基胍(IC₅₀值为23.4 μM)。
Nine new guaianes (graphostromanes A–I, 1–9) were isolated from the deep-sea-derived fungus Graphostroma sp. MCCC 3A00421, along with four known ones (10–13). The relative configurations were established mainly by detailed analysis of the NMR and HRESIMS data, while the absolute configurations were assigned using the X-ray crystallography and modified Mosher’s method. All isolates were evaluated for their inhibitory effects against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW264.7 macrophages. Graphostromanes F (6) showed remarkable inhibitory effect with an IC50 value of 14.2 μM, which was even stronger than that of aminoguanidine, a positive control with an IC50 value of 23.4 μM.
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期刊: ORGANIC LETTERS
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