图罗尼A是一种来自澳大利亚Streptomyces品种的抗真菌线性多基因多基基因
Rachel Chen1, Scott A Minns1, John A Kalaitzis2
1Microbial Screening Technologies Pty. Ltd., Smithfield, NSW 2164, Australia.
Journal of natural products
|August 1, 2023
概括
图罗尼A是一种新型的Streptomyces的多基类抗生素,具有强大的抗真菌和中等的抗菌活性. 它的低细胞毒性使其成为新抗生素开发的有希望的支架.
科学领域:
- 自然产品化学 自然产品化学
- 微生物学 微生物学
- 药物发现 药物发现 药物发现
背景情况:
- 杆菌种 (Streptomyces) sp. 这种杆菌种 (Streptomyces) 是一种 从澳大利亚土壤中分离出的MST-123921产生了一种新型化合物,Turonicin A.
- 图罗尼A是一种线性聚聚基,结构上与线性菌素有关.
- 它的两性质和独立的染色体是其关键的结构特征.
研究的目的:
- 从Streptomyces sp.中分离和鉴定罗尼A的特征 在MST-123921上.
- 为了阐明Turonicin A和相关化合物的结构.
- 评估图罗尼辛A的生物活性和细胞毒性.
主要方法:
- 使用光谱分析将图罗尼A分离和净化.
- 通过详细的光谱数据和文献比较进行结构阐明.
- 对线性氨酸生物合成基因集群的生物信息分析.
- 对Candida albicans,Saccharomyces cerevisiae,Bacillus subtilis和Staphylococcus aureus进行抗微生物敏感性测试.
- 使用人类纤维细胞质的细胞毒性测定.
主要成果:
- 罗尼A (1) 被分离出来,并确定了它的结构.
- 线性菌素AC (2-4) 的绝对立体结构得到了阐明.
- 图罗尼辛A对Candida albicans (MIC 0.0031μg/mL) 和Saccharomyces cerevisiae (MIC 0.0008μg/mL) 显示出强大的活性.
- 观察到对 Bacillus subtilis (MIC 0.097μg/mL) 和 Staphylococcus aureus (MIC 0.39μg/mL) 的中度活性.
- 在人类纤维细胞中没有检测到细胞毒性.
结论:
- 图罗尼A是一种强大的抗真菌和中度活性抗菌剂.
- 该化合物具有良好的安全性,没有观察到细胞毒性.
- 图罗尼A为下一代抗生素的开发提供了一个有前途的支架.
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