纳米-齐普罗夫洛克萨/美罗胺表现出杀菌活性,对抗格拉姆阴性细菌和救援败血症大鼠模型
Safy Hadiya1, Reham A Ibrahem2, Rehab M Abd El-Baky2,3
1Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, 71515, Egypt.
Nanomedicine (London, England)
|November 7, 2023
概括
这项研究开发了一种新的纳米聚合物矩阵,结合了两种抗生素,西普罗夫洛克萨和美罗,以增强它们对抗耐药病原体的协同抗菌作用. 纳米平台在体外和体内都显示出更好的疗效,为抗生素耐药性提供了一种有前途的策略.
科学领域:
- 纳米技术 纳米技术
- 制药科学 制药科学
- 传染性疾病 传染性疾病
背景情况:
- 抗生素耐药性构成严重的全球健康威胁,需要新的策略来提高抗菌药物的有效性.
- 传统的抗生素组合通常在协同作用和输送方面面临局限性.
- 纳米聚合物矩阵为联合提供多种治疗剂提供了一个有前途的平台.
研究的目的:
- 为了研究当在基托/普鲁龙纳米聚合物矩阵内共同封装时,西普罗夫洛克萨和美罗的协同杀菌相互作用.
- 评估开发的纳米平台 (CS/Plu-Cip/Mer) 在体外和体外的抗菌疗效.
- 评估纳米聚合物系统在对抗耐药病原体的抗生素复苏方面的潜力.
主要方法:
- 使用离子凝制备充满果和美罗 (CS/Plu-Cip/Mer) 的奇托/普鲁龙纳米平台.
- 优化Pluronic度 (0.5-4% w/v) 以实现高效的封装.
- 在受感染的老鼠模型中评估封装效率,最小抑制度 (MIC),协同活性和体内疗效.
主要成果:
- 奇托/普鲁龙纳米平台在最佳的普鲁龙度下,为这两种抗生素实现了大约80%的封装效率.
- 与免费抗生素组合相比,CS/Plu-Cip/Mer纳米平台显著降低了MIC (四倍至16倍).
- 在MIC和亚MIC的1x下,证明了协同的杀菌作用,导致细菌负载显著降低,并成功地救出感染的老鼠.
结论:
- 奇托/普鲁龙纳米聚合物矩阵有效地加剧了西普罗夫洛克萨和美罗胺之间的协同相互作用.
- 这种纳米平台通过使现有抗生素复原,显示出克服抗生素耐药性的巨大潜力.
- 开发的纳米载体代表了对抗耐药病原体引起的感染有前途的治疗策略.
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