Bioactive Polycyclic Quinones from Marine Streptomyces sp. 182SMLY

Autor: Ying Liang, Xin Xie, Lu Chen, Shilun Yan, Xuewei Ye, Komal Anjum, Haocai Huang, Xiaoyuan Lian, Zhizhen Zhang
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Marine Drugs, Vol 14, Iss 1, p 10 (2016)
Druh dokumentu: article
ISSN: 1660-3397
DOI: 10.3390/md14010010
Popis: Chemical investigation of the cultures of marine Streptomyces sp. 182SMLY led to the discovery of two new polycyclic anthraquinones, which were elucidated as N-acetyl-N-demethylmayamycin (1) and streptoanthraquinone A (2) based on the extensive spectroscopic analysis including 2D NMR, HRESIMS, and an electronic circular dichroism (ECD) calculation. Both anthraquinones remarkably suppressed the proliferation of four different glioma cell lines with IC50 values in a range from 0.5 to 7.3 μM and induced apoptosis in the glioma cells. The ratios of IC50 for normal human astrocytes to IC50 for glioma cells were 6.4–53 for 1 and >14–31 for 2. N-acetyl-N-demethylmayamycin (1) also inhibited the growth of methicillin-resistant Staphylococcus aureus with MIC 20.0 μM.
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