来自6/6/6/5/5,6/6/6和6/6/6/5环系统的光醇,芳香性勃醇
Mengsha Wei1, Liping Huang1, Qin Li1
1Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China.
Journal of natural products
|June 9, 2023
概括
从Aspergillus spectabilis中分离出了五种新的芳香性埃尔戈斯特,即A-E的斯佩克塔斯特. 斯佩克塔斯托罗尔3在HL60细胞中表现出显著的细胞毒性和抗炎作用.
科学领域:
- 自然产品 化学 化学
- 药用化学 医学化学
- 菌类学 菌类学是指菌类学.
背景情况:
- 阿斯珀吉勒斯种类是各种二次代谢产物的丰富来源.
- 欧戈斯特醇是具有潜在生物活性的固醇的一类.
- 探索真菌代谢物可以导致发现新的生物活性化合物.
研究的目的:
- 从Aspergillus spectabilis中分离和描述新型的埃尔戈斯特.
- 评估孤立化合物的细胞毒性和抗炎性潜力.
- 阐明有助于生物活性的结构特征.
主要方法:
- 使用色谱技术分离和净化化合物.
- 使用光谱方法 (NMR,MS) 阐明结构.
- 在体外测试以评估细胞毒性 (例如,IC50的确定) 和抗炎作用 (例如,COX-2,NF-κB抑制).
主要成果:
- 他们分离了五种芳香性埃尔戈斯特,即A-E (1-5) 斯佩克塔斯特.
- 化合物1和2具有独特的6/6/6/5/5环系统.
- 化合物3和4由于D环扩张而具有不常见的6/6/6/6环系统.
- 斯佩克塔斯托罗尔3对HL60细胞表现出显著的细胞毒性活性 (IC50 6.9μM).
- 在HL60细胞中,spectasterol 3诱导细胞循环停止和细胞亡.
- 斯펙타스테롤3通过降低COX-2表达和抑制NF-κB p65核转位,显示出抗炎性质.
结论:
- 斯佩克塔醇A-E代表具有独特结构特征的新型厄戈斯特醇衍生物.
- 斯佩克塔斯托醇3具有强烈的细胞毒性和抗炎活性,因此需要进一步研究治疗潜力.
- 在Spectasterols 3和4中的结构变化有助于它们独特的环系统和生物活性.
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