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A new cytochalasin from endophytic Phomopsis sp. IFB-E060 / 中国天然药物
Article in En | WPRIM | ID: wpr-812239
Responsible library: WPRO
ABSTRACT
AIM@#To study the chemical constituents of the solid culture of the endophyte Phomopsis sp. IFB-E060 in Vatica mangachapoi.@*METHOD@#Isolation and purification were performed through silica gel column chromatography, gel filtration over Sephadex LH-20, ODS column chromatography, and HPLC. Structures of the isolated compounds were elucidated by a combination of spectroscopic analyses (UV, CD, IR, MS, 1D, and 2D NMR). The cytotoxicity of the isolates was evaluated in vitro by the MTT method against the human hepatocarcinoma cell line SMMC-7721.@*RESULTS@#Five compounds were isolated from the solid culture of the endophyte Phomopsis sp. IFB-E060 and their structures were identified as 18-methoxy cytochalasin J (1), cytochalasin H (2), (22E, 24S)-cerevisterol (3), ergosterol (4), and nicotinic acid (5). Compound 1 had an inhibition rate of 24.4% at 10 μg·mL(-1) and 2 had an IC50 value of 15.0 μg·mL(-1), while a positive control 5-fluorouracil had an inhibition rate of 28.7% at 10 μg·mL(-1).@*CONCLUSION@#18-Methoxy cytochalasin J (1), produced by endophytic Phomopsis sp. IFB-E060, is a new cytochalasin with weak cytotoxicity to the human hepatocarcinoma cell line SMMC-7721.
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Full text: 1 Index: WPRIM Main subject: Ascomycota / Molecular Structure / Cell Survival / Chemistry / Magnoliopsida / Cytochalasins / Plant Bark / Cell Line, Tumor / Toxicity / Endophytes Limits: Humans Language: En Journal: Chinese Journal of Natural Medicines (English Ed.) Year: 2014 Type: Article
Full text: 1 Index: WPRIM Main subject: Ascomycota / Molecular Structure / Cell Survival / Chemistry / Magnoliopsida / Cytochalasins / Plant Bark / Cell Line, Tumor / Toxicity / Endophytes Limits: Humans Language: En Journal: Chinese Journal of Natural Medicines (English Ed.) Year: 2014 Type: Article