pH/H2O2双反应性巨细胞向性基托糖纳米颗粒,用于对抗细胞内细菌感染
Xiaomei Dai1, Yu Li1, Yongjie Zhang1
1Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, PR China.
Colloids and surfaces. B, Biointerfaces
|December 22, 2024
概括
新的纳米粒子对抗抗生素耐药性和细胞内细菌. 这种双响应系统提供协同抗生素和β-乳糖酶抑制剂活性,增强治疗复发性感染.
科学领域:
- 生物材料科学 生物材料科学
- 纳米医学是一种纳米医学.
- 传染性疾病 传染性疾病
背景情况:
- 抗生素耐药性和细胞内细菌感染对人类健康构成重大威胁.
- 复发性感染通常是由细菌引起的,这些细菌内部化到宿主细胞中,逃避常规抗生素治疗.
研究的目的:
- 开发一种新型的双响应纳米粒子 (COSBN@CFS@PS) 用于向细胞内细菌感染治疗.
- 研究开发的纳米粒子系统的协同抗菌和β-乳糖酶抑制作用.
主要方法:
- 甲酸糖 (COS) 经过青酸皮纳科尔的功能化,并与素盐 (CFS) 结合,形成COSBN@CFS纳米粒子.
- 用COSBN@CFS纳米颗粒封装了酸丁素 (PS) 来针对性地吸收巨细胞.
- 研究了酸 (β-乳酸酶抑制剂) 和CFS的pH/H2O2双反应释放.
主要成果:
- 这些纳米颗粒有效地抑制了β-乳酸酶活性,增强了CFS对抗CFS耐药细菌的抗菌疗效.
- 在体内,COSBN@CFS@PS表现出显著抑制细胞内细菌.
- 该系统表现出极好的生物相容性和强大的杀菌活性.
结论:
- COSBN@CFS@PS纳米颗粒通过结合向传递,抗生素作用和β-乳糖酶抑制,为治疗细胞内细菌感染提供了一个有希望的策略.
- 双响应性和协同效应突显了这种纳米医药平台在打击抗生素耐药性的潜力.
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