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协调驱动的自组合金属离子-反意义寡核酸纳米混合体用于慢性细菌感染治疗

Anqi Li¹, Yan Zhang¹, Li Wan¹

¹Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China.

ACS applied materials & interfaces

|May 20, 2024

概括

新型纳米颗粒与反感性寡核化物 (ASO) 提供了一种协同方法来对抗细菌感染,增强伤口愈合. 这些纳米粒子表现出强大的抗菌活性,并在体内促进皮肤再生.

科学领域:

生物材料科学生物材料科学
抗微生物治疗药物抗微生物治疗药物
纳米技术纳米技术

背景情况:

细菌感染严重阻碍了伤口愈合和皮肤再生,造成了相当大的医疗负担.
目前用于慢性伤口感染的治疗方法经常面临有效性和生物相容性方面的挑战.

研究的目的:

开发一种新型的纳米结构,用于对抗慢性伤口感染的协同抗菌疗法,特别是那些由黄金葡萄球菌引起的.
研究与离子 (Zn2+) 协调的反感性寡核酸 (ASO) 对于增强的抗菌应用的潜力.

主要方法:

合成的-ASO纳米粒子 (Zn-ASONP) 通过Zn2+与ASO分子的协调驱动自组装.
评估了纳米粒子的结构完整性,ASO封装效率和生物可访问性.
进行了体外和体内各种细菌菌株的抗菌检测,包括金黄色葡萄球菌,并评估了伤口愈合的有效性.

主要成果:

Zn-ASO NPs证明了有效的封装和ASO功能的保存.
试验室研究显示,对大肠杆菌,金黄色葡萄球菌和细菌细菌具有强烈的抗菌活性,归因于离子和活性氧物种.
在体内测试证实,Zn-ASO NPs显著促进了白 Staphylococcus感染模型的皮肤伤口愈合,残留感染最小 (<8%) 和良好的生物相容性.

结论:

开发的Zn-ASONP提供了一个协同作用的抗菌策略,结合了抗意义基因疗法和金属协调自组装.
这种方法有效地治疗细菌伤口感染,增强皮肤再生,并扩大金属协调ASO自组装的应用.
这项研究推进了基于ASO的治疗策略,以对抗在伤口护理中具有挑战性的细菌感染.

关键词:

这是一种反意义的寡核酸.细菌感染细菌感染基因治疗的基因疗法纳米医药是一种纳米医药.自动组装的自动组装机

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