血清蛋白涂层增强了银纳米颗粒对抗多药耐药性的抗菌效果
Huamao Du1, Xiaoling Wang2, Hongying Zhang1
1College of Biotechnology, Southwest University, Chongqing, China.
Frontiers in microbiology
|June 9, 2023
概括
银纳米粒子 (AgNPs) 显示出对抗耐药细菌的承诺. 在小鼠血清中稳定的AgNP有效地治疗了小鼠中的大肠杆菌败血症,突出了针对抗菌素耐药性的潜在策略.
科学领域:
- 纳米技术纳米技术
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 抗菌素耐药性 (AMR) 是一个全球性的健康危机.
- 迫切需要新的治疗策略来对抗多药耐药 (MDR) 细菌感染.
- 银纳米粒子 (AgNPs) 已经证明了其抗菌性质.
研究的目的:
- 通过使用 rutin.to 合成环保的银纳米粒子 (AgNPs).
- 评估稳定聚烯 (PVP) 和稳定小鼠血清 (MS) 的AgNP对MDR Escherichia coli (大肠杆菌) 的生物相容性和体内疗效.
- 研究蛋白冠状体在AgNP抗菌活性中的作用.
主要方法:
- 在室温下使用鲁丁合成球形AgNP.
- 在小鼠中,PVP-AgNP和MS-AgNP的生物相容性和生物分布被评估为20μg/mL.
- 针对MDR E. coli CQ10败血症的疗效在小鼠模型中进行了评估,分析了细菌负载,炎症标志物 (IL-6,TNF-α,KC,CRP) 和生存率.
主要成果:
- 无论是PVP-AgNP还是MS-AgNP,都在小鼠中表现出类似的生物分布.
- MS-AgNPs显著保护小鼠免受MDR大肠杆菌CQ10诱导的败血症 (p = 0.039).
- 与对照组相比,MS-AgNPs减少了血液和中的大肠杆菌,并减弱了炎症反应,这表明IL-6,TNF-α,KC和CRP水平较低.
结论:
- 鼠标血清稳定的AgNP在体内有效治疗MDR大肠杆菌败血症.
- 血蛋白冠状体增强了AgNPs的抗菌功效.
- 特别是那些具有蛋白冠冠的AgNP,代表了对抗抗菌素耐药性的有希望的策略.
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