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神经氨基酶和pH响应的纳米药物对抗耐药的Glaesserella寄生虫

Zhixin Lei¹, Ming Jin², Ying Lei²

¹School of Chemistry, Chemical Engineering and Life Science, Hubei Key Laboratory of Nanomedicine for Neurodegenerative Disease, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China.

International journal of biological macromolecules

|February 5, 2025

概括

一种新的纳米细胞药物递送系统,PSA-Gly-TD,通过利用神经aminidase和pH响应,有效地准耐药Glaesserella parasuis感染. 这一突破为牲畜健康提供了更高的有效性和安全性.

科学领域:

兽医医学兽医医学兽医医学
纳米技术纳米技术
抗微生物耐药性抗微生物耐药性

背景情况:

Glaesserella parasuis (GPS) 感染对牲畜造成重大经济损失.
GPS中的抗生素耐药性使治疗复杂化,新药的开发速度缓慢.
神经氨基酶是GPS感染中的关键毒性因素.

研究的目的:

开发一种双响应的纳米细胞药物递送系统 (PSA-Gly-TD),以向神经氨基酶和pH值变化.
为应对耐药GPS感染的挑战.
为了提高提尔迪皮洛辛的有效性和安全性.

主要方法:

聚酸 (PSA) 与提尔迪皮洛辛 (TD) 的共价结合,形成PSA-Gly-TD纳米粒子.
纳米粒子属性的表征包括分散性,稳定性,粒子大小 (64.75 nm) 和封装效率 (99.27%).
在体外评估药物释放,细胞吸收,细胞活力和对抗药物耐药GPS的抗菌活性.
在动物模型中对代谢概况,组织损伤和血液溶解进行体内评估.

主要成果:

PSA-Gly-TD纳米粒子表现出极好的分散性,稳定性和高封装效率.
该系统在病理条件下证明了药物释放的加速.
细胞吸收量几乎是单独的提尔迪皮罗辛的三倍,细胞活力超过90%.
在动物模型中,PSA-Gly-TD对抗药耐药GPS菌株具有增强的抗菌功效,并且具有良好的安全性 (新陈代谢稳定,组织损伤减少,不发生血液溶解).

结论:

PSA-Gly-TD是一种安全有效的双响应纳米细胞系统,用于治疗耐药GPS感染.
这种创新方法提供了一种有希望的解决方案,用于对抗兽医中的抗菌素耐药性.
该研究强调了有针对性的纳米配送系统在解决关键牲畜健康挑战方面的潜力.

关键词:

耐药性耐药性耐药性耐药性双响应式双响应式玻璃虫 (Glaesserella parasuis) 已经被发现.一个纳米微小的小微生物.神经氨基酸酶是一种神经氨基酸酶.

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