Bioactive Streptoglutarimides A-J from the Marine-Derived Streptomyces sp. ZZ741.
Di ZhangWenwen YiHengju GeZhizhen ZhangBin WuPublished in: Journal of natural products (2019)
The new streptoglutarimides A-J (1-10) and the known streptovitacin A (11) were isolated from a marine-derived actinomycete, Streptomyces sp. ZZ741. Structures of the isolated compounds were elucidated based on their HRESIMS data, extensive NMR spectroscopic analyses, ECD calculations, Mosher's method, and a single-crystal X-ray diffraction experiment. Streptoglutarimide H (8) and streptovitacin A (11) showed potent antiproliferative activity against human glioma U87MG and U251 cells with IC50 values of 1.5-3.8 μM for 8 and 0.05-0.22 μM for 11. All isolated compounds exhibited antimicrobial activity with MIC values of 9-11 μg/mL against methicillin-resistant Staphylococcus aureus, 8-12 μg/mL against Escherichia coli, and 8-20 μg/mL against Candida albicans.
Keyphrases
- candida albicans
- methicillin resistant staphylococcus aureus
- high resolution
- biofilm formation
- escherichia coli
- staphylococcus aureus
- induced apoptosis
- endothelial cells
- cell cycle arrest
- magnetic resonance
- solid state
- electronic health record
- density functional theory
- big data
- molecular dynamics
- mass spectrometry
- molecular dynamics simulations
- magnetic resonance imaging
- pluripotent stem cells
- endoplasmic reticulum stress
- pseudomonas aeruginosa
- cell death
- cell proliferation
- computed tomography
- data analysis
- klebsiella pneumoniae
- cystic fibrosis