纳菲尔-聚胺结合物的研究作为抗菌剂和抗生素增强剂
Melissa M Cadelis1,2, Liam R Edmeades1, Dan Chen1
1School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
Antibiotics (Basel, Switzerland)
|June 28, 2023
概括
新的聚胺合物对MRSA和真菌表现出强大的抗菌活性. 一些化合物还可以增强抗生素对阴性细菌的有效性,这表明它们有可能成为新型治疗剂.
科学领域:
- 药用化学 医学化学
- 发现抗微生物药物 发现抗微生物药物
- 有机合成 有机合成
背景情况:
- 抗生素耐药性的增加需要开发新型抗菌剂和加强现有抗生素的策略.
- 多氨酸是设计新生物活性分子的多功能支架.
- 纳和双替代物可以调节有机化合物的特性.
研究的目的:
- 为了合成和评估纳和双替代聚胺合物的图书馆,用于抗菌活性和抗生素增强.
- 研究这些新型化合物的结构-活性关系.
- 为了确定潜在的候选人进一步发展作为抗微生物药物或抗生素增强剂.
主要方法:
- 合成多种多样化的聚胺结合体库,具有不同的末端组和聚胺核心长度.
- 对抗甲基西林耐药黄金葡萄球菌 (MRSA) 和新型菌 (Cryptococcus neoformans) 的抗微生物敏感性测试.
- 对抗生素增强性质的评估与多西环素和红色素结合使用,对抗 Pseudomonas aeruginosa 和 Escherichia coli.
- 对选定化合物的机制研究,包括杀菌活性评估.
主要成果:
- 带有1-纳和2-纳封闭组的更长链聚胺变体显示出针对MRSA和C. neoformans的显著内在抗菌活性 (MIC ≤0.29μM).
- 化合物20f被确定为一种杀菌剂.
- 几种类似物增强了多西环素和/或红素对P. aeruginosa和大肠杆菌的活性,其中化合物19a和20c显示了超过32倍的增强.
- 与基封闭组配合的α,ω-非替代聚氨酸被证明是有效的.
结论:
- 纳和双替代的聚胺合物代表了一类有前途的化合物,具有作为直接抗微生物和抗生素增强剂的双重潜力.
- 已识别的化合物,特别是那些具有较长的聚胺核和特定的乙烯封顶组的化合物,需要进一步研究治疗应用.
- 这些发现有助于寻找新的策略来对抗耐药微生物感染.
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