鲁米诺可可辛C糖异型的机制和功能方面
Lama Shamseddine1,2, Clarisse Roblin2, Iris Veyrier2
1University Grenoble Alpes, CNRS UMR5249, CEA, IRIG, Laboratoire Chimie et Biologie des Métaux, 38054 Grenoble, France.
iScience
|September 4, 2023
概括
来自Ruminococcus gnavus的新型乳糖对抗抗生素耐药性的治疗有希望. 这些鲁米诺菌素 (RumCs) 是安全的,有效的,并增强了传统的抗生素,为公共卫生危机提供了潜在的解决方案.
科学领域:
- 微生物学 微生物学
- 生物化学 生物化学
- 药物发现 药物发现 药物发现
背景情况:
- 抗生素耐药性是一个主要的公共卫生问题,需要新的治疗策略.
- 核糖体合成和翻译后修饰的 (sactipeptides) 是一种有前途的抗菌化合物.
- 格兰氏阳性人类肠道共生体 *Ruminococcus gnavus* E1 产生了五种乳酸,即 C1-C5 (RumC1-C5) 乳酸.
研究的目的:
- 为成熟的RumC2-5调整生物合成协议并评估它们的抗菌活性.
- 评估所有RumC异型体的安全性和多功能性.
- 为了确定负责RumC异型的抗菌活性的关键残留物.
主要方法:
- 使用适应的协议进行RumC2-5的生物合成.
- 对抗多抗药性格拉姆阳性临床分离物的抗菌活性评估.
- 评估与传统抗生素的协同效应.
- 通过结构-活性关系研究识别关键残留物.
主要成果:
- 生物合成协议成功地适应了成熟的RumC2-5.5.
- 所有五种RumC异构体都表现出不同程度的抗菌疗效,对抗多药耐药菌株.
- 所有的RumC被发现对人类使用是安全的,并显示多功能性.
- 在RumCs和向细胞壁的抗生素之间观察到协同活性,但在RumCs本身之间没有.
- 确定了有助于RumC异型体抗菌活性的关键残留物.
结论:
- 鲁米诺菌素 (RumCs) 是对抗抗生素耐药性的可行替代品.
- RumCs证明了安全性,广泛的活性和与现有抗生素的协同作用潜力.
- 对RumC结构-活性关系的进一步研究可以指导新型抗菌剂的开发.
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