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呈现曼诺斯的"甘油"将细菌细胞表面转化为附着细菌的多价值吸附部位
Natasha E Hatton1, Joe Nabarro1, Nicholas D J Yates1
1Department of Chemistry, University of York, York, YO10 5DD, United Kingdom.
JACS Au
|June 28, 2024
概括
新型葡萄糖素向细菌表面受体,诱导细菌聚合以对抗抗菌素耐药性. 这种创新方法使用细菌作为一个多价值平台,以防止病原体粘附.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 药物发现 药物发现 药物发现
背景情况:
- 生物膜的形成是细菌病原和抗菌素耐药性 (AMR) 的关键因素.
- 粘附性侵入性大肠杆菌 (AIEC) 和泌尿病原性大肠杆菌 (UPEC) 使用FimH粘合素将曼诺斯残留物与宿主细胞结合,导致诸如炎症性肠病和尿路感染等疾病.
- 现有的基于曼诺酶的抑制剂由于单价相互作用而面临限制.
研究的目的:
- 开发一种针对附着细菌的新型非杀菌性抗粘合策略.
- 为了克服单价碳水化合物-蛋白质相互作用在抑制细菌粘附方面的局限性.
- 探索细菌表面受体在功能性图案的多价值显示方面的潜力.
主要方法:
- 准备了可利E9生物结合物,这些生物结合物被设计为结合细菌外膜上的BtuB受体.
- 利用这些生物结合物在细菌表面上多价值呈现曼诺斯基因.
- 评估含有曼诺斯的"甘油聚素"诱导细菌聚合和抑制FimH介导结合的能力.
主要成果:
- 胆固醇E9生物结合物成功标记了活体大肠杆菌的表面.
- 已经证明,含有曼诺斯的"甘油"可诱导大肠杆菌的聚合.
- 这种细菌聚合有效地创建了一个多价值的曼诺斯显示平台,触发与相邻的FimH呈现细菌的结合.
结论:
- 这项研究开创了一种新的策略,使用工程生物结合物来通过BtuB受体在细菌上创建多价值的曼诺斯显示.
- 诱导的细菌聚合作为抗粘附机制,提供了一个有希望的新途径,以打击AMR.
- 这种方法将细菌重新用作治疗干预的平台,绕过传统的抑制剂限制.
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