脂酸兹维特聚合物工程纳米酶通过中性粒细胞重编程缺血性微环境运输用于中风治疗
Mengcheng Guo1, Haoyu Li2, Qingran Guan1
1Engineering Research Center of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun, Jilin, 130012, China.
Materials today. Bio
|November 10, 2025
概括
这项研究引入了一种针对缺血性中风的新型纳米酶疗法,通过同时针对多种疾病途径,有效减少脑损伤并促进神经修复.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 神经科学是一个神经科学.
背景情况:
- 缺血性中风 (IS) 涉及氧化应激,线粒体亡和NLRP3亡,导致神经元死亡和神经炎症.
- 传统的单一目标疗法难以解决IS的复杂,多途径的性质.
- 反应性氧物种 (ROS) 的积累加剧了IS病理.
研究的目的:
- 开发一种基于中性粒细胞的工程纳米酶 (PLSP@CeO2),用于协同治疗缺血性中风.
- 克服单一向疗法的局限性,解决IS途径的恶性循环.
- 建立神经退行性疾病的新疗法策略.
主要方法:
- 构建一个以中性粒细胞为主导的zwitterionic工程纳米酶 (PLSP@CeO2).
- 利用酸/L-选择因用于跨越血脑屏障的向输送.
- 在体外和体内研究了纳米酶的双重酶活性,抗apoptotic,抗pyroptotic和微质细胞极化效应.
主要成果:
- PLSP@CeO2证明了高效的血脑屏障的透.
- 该纳米酶有效地清除了ROS,抑制了线粒体亡和NLRP3亡.
- 观察到大脑梗塞体积显著减少,神经元死亡,促进血管生成和神经修复.
结论:
- 该PLSP@CeO2纳米酶系统提供了多机制协同治疗缺血性中风.
- 这种方法克服了传统纳米酶单对象治疗的局限性.
- 使用内源性免疫细胞为神经退行性疾病提供了一个新的治疗范式.
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