Potential antihyperlipidemic polyketones from endophytic Diaporthe sp. JC-J7 in Dendrobium nobile
| Autor: | Hai-Yue Yin, Ming Hu, Xue-Qiong Yang, Bang-Yan Wang, Chuen-Ping Wan, Zhong-Tao Ding, Ya-Bin Yang, Li-Jiao Shi, Ya-Mei Wu, Hao Zhou |
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| Rok vydání: | 2018 |
| Předmět: |
biology
010405 organic chemistry Chemistry Stereochemistry General Chemical Engineering General Chemistry biology.organism_classification medicine.disease 01 natural sciences Dendrobium nobile 0104 chemical sciences Diaporthe sp 010404 medicinal & biomolecular chemistry medicine.anatomical_structure Polyketone Hepatocyte medicine Fermentation Lovastatin Steatosis medicine.drug |
| Zdroj: | RSC Advances. 8:41810-41817 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c8ra08822e |
| Popis: | Eleven new polyketones named diaporthsins A–K (1–11) were isolated from the fermentation of Diaporthe sp. JC-J7. The chemical structures of compounds (1–11) were elucidated by spectroscopic methods including HRESIMS, 2DNMR, NMR and chemical methods. Compound 11 features an unusual acyclic polyketone–phenolic polyketone hybrid structure that integrates the characteristics of different fungal metabolites (cytosporone and multiplolide). Compound 3 was the only C12-polyketone obtained in this research. These new polyketones showed inhibitory activity on triglycerides (TG) in steatosis hepatocyte L-02 cells. Among them, compound 5 and (4E)-6,7,9-trihydroxydec-4-enoic acid displayed inhibitory activities on TG in steatotic L-02 cells with inhibition ratios of 26% and 21% at concentration of 5 μg mL−1; also, inhibition ratios of 8-O-acetylmultiplolide A and phomopsisporone A at concentration of 5 μg mL−1 were calculated to be about 24% and 16%, respectively, which were equivalent to the antihyperlipidemic activity of lovastatin. The preliminary structure–activity relationship indicated that acetyl at C-8 can increase the antihyperlipidemic activity of multiplolide A and the glycol ester and hydroxyl at C-6 can also increase the corresponding activity of diaporthsin B. |
| Databáze: | OpenAIRE |
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