选择性结合细胞的Zwitterionic聚合微粒增强了抗生素的传递效率
Huahai Yu1, Ying Piao1, Yifan Zhang1
1Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
ACS nano
|November 7, 2023
概括
研究人员开发了一种新的zwitterionic聚合物菌体系统,可以选择性地与红细胞 (RBC) 和细菌结合. 这种系统可以提高抗生素的传递到感染部位,从而提高细菌感染的治疗效率.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 传染性疾病 传染性疾病
背景情况:
- 抗生素耐药性需要先进的药物输送系统,以有效治疗细菌感染.
- 红细胞 (RBC) 被探索为纳米药物的载体,以改善药物向和循环.
- 开发具有对红细胞和细菌标的特定亲和力的纳米载体仍然是一个重大挑战.
研究的目的:
- 设计和评估一种基于zwiterionic聚合物的菌根系统,用于选择性RBC上车和有针对性的抗生素输送.
- 研究纳米载体与红细胞和细菌细胞壁的结合机制.
- 评估纳米载体系统在将抗生素输送到感染部位和治疗细菌感染方面的有效性.
主要方法:
- 复合Zwitterionic聚合物多2-N-氧化物-N,N-乙胺) 乙基甲酸盐 (OPDEA) 和形成小粒.
- 评估OPDEA微粒对红细胞和格兰正细菌的亲和力.
- 评估OPDEA微粒透到细菌生物膜中的情况.
- 在OPDEA小粒中加载克拉里素,并在腹膜炎和肺炎模型中进行体内疗效测试.
主要成果:
- 通过脂相互作用,OPDEA小粒通过脂相互作用向红细胞膜表现出特定的结合.
- 微粒与格拉姆阳性细菌细胞壁的相互作用明显更强,促进从红细胞转移.
- 紫外线表面和细胞壁亲和力增强了微粒在生物膜中的透.
- 载有克拉里胺的OPDEA小粒在体内表现出有效的药物输送和强大的治疗效果.
结论:
- 基于OPDEA的菌提供了一种简单而有效的策略,用于红细胞选择性车和向性抗生素释放.
- 这种纳米药物输送系统显示出克服治疗细菌感染的挑战,特别是那些涉及生物膜的挑战的希望.
- 开发的系统为设计先进的抗菌纳米药物提供了一个多功能平台.
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