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发现和衍生了具有改变宿主特异性和增强生物活性的三素抗生素
Nataliia V Machushynets1, Karol Al Ayed2, Barbara R Terlouw3
1Molecular Biotechnology, Institute of Biology, Leiden University, Leiden 2333 BE, The Netherlands.
ACS chemical biology
|April 11, 2024
概括
通过基因组挖掘发现了新的脂抗生素,三基因,用于对抗多药耐药性病原体. 特里德丁类似物对抗耐药细菌具有强烈的疗效,提供了一个有前途的新类抗生素.
科学领域:
- 微生物学与传染病的研究
- 化学生物学和自然产品化学生物学和自然产品
背景情况:
- 多药耐药 (MDR) 病原体的流行率不断上升,对全球健康构成重大威胁.
- 新型抗生素化合物的发现同时下降,需要创新的方法来补充药物管道.
研究的目的:
- 通过全球基因组挖掘,发现新的脂抗生素.
- 描述新发现的三甲类同类物质的生物活性和结构变异.
- 评估这些新型化合物对抗具有挑战性的多药耐药病原体的潜力.
主要方法:
- 全球基因组挖掘被用于识别新型脂抗生素基因集群.
- 对Paenibacillus* sp.的代谢分析 JJ-21用于验证预测的氨基酸序列.
- 通过合成和选三甲胺类同类物,包括9位的替代物,进行了结构-活性关系研究.
主要成果:
- 发现和描述两个新的脂抗生素,三甲A5和三甲D.
- 特定氨基酸替代物的鉴定 (例如,Phe到Trp) 影响抗菌谱.
- 开发了一种强大的类似物,Oct-His9,证明了对*Pseudomonas aeruginosa*的异常有效性,降低了溶血和细胞毒性作用.
结论:
- 基因组挖掘是发现新型抗生素支架的有效策略,例如tridecaptins.
- 特里德卡普丁类似物表现出有前途的活性特征,包括对MDR病原体的强效.
- 特里德卡类代表了一条有价值的新途径,用于开发治疗药物,以应对抗菌素耐药性的挑战.
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