同时控制炎症和感染的智能纳米药物响应炎症的微环境
Xinjing Lv1, Jie Min1, Jie Huang1
1Children's Hospital of Soochow University, Pediatric Research Institute of Soochow University, Suzhou, Jiangsu, 215123, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|September 3, 2024
概括
新的纳米颗粒平衡了抗感染和抗炎的作用. 这些纳米药物向炎症环境,杀死病原体并减少破坏性免疫反应,改善严重感染的存活率,而不会破坏整体免疫健康.
科学领域:
- 生物医学工程 生物医学工程
- 纳米医学是一种纳米医学.
- 免疫学 免疫学 免疫学
背景情况:
- 严重的感染会导致由于过度激活的免疫细胞导致器官损伤.
- 目前的抗炎药物可能会增加感染易感性.
- 在治疗传染病时,平衡抗炎和抗感染的作用至关重要.
研究的目的:
- 设计一种对炎症微环境有反应的纳米医药.
- 为了同时控制感染和炎症.
- 开发一种治疗策略,避免免疫平衡干扰.
主要方法:
- 含有E6 (Ce6) 和光 (Lum) 的多乳糖合糖酸 (PLGA) 纳米颗粒.
- 使用生物发光共振能量转移 (BRET),由过氧化 (H2O2) 和髓氧化酶 (MPO) 触发.
- 在细菌感染模型和病毒引起的肺炎中进行测试.
主要成果:
- Lum/Ce6@PLGA纳米粒子在正常情况下是无毒的.
- 纳米粒子在炎症环境中产生细胞毒性单氧.
- 观察到有效的感染和炎症控制,从而改善了动物的生存率.
结论:
- 基于BRET的纳米粒子提供了对抗感染和炎症的双重方法.
- 这种纳米医学策略显示出治疗严重传染病的前景.
- 这种方法保持免疫平衡,同时向病变.
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