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多功能纳米粒子用于免疫调节和氧化应激减轻心肌炎

Zhou Ye¹, Manman Zhu², Shaojie Li³

¹Department of Emergency Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China; Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China.

Journal of controlled release : official journal of the Controlled Release Society

|March 7, 2025

概括

多功能纳米颗粒 (PMN@EDR) 针对肌心炎中的免疫反应和氧化应激. 这种双重作用的方法可以减少炎症并保护心脏细胞,为这种疾病提供了一种新的治疗策略.

科学领域:

心血管医学心血管医学
免疫学免疫学免疫学
纳米技术纳米技术

背景情况:

心肌炎涉及心脏自身免疫性损伤和氧化应激.
编程细胞死亡蛋白1/编程细胞死亡配体1 (PD-1/PD-L1) 轴调节免疫反应.
反应性氧物种 (ROS) 会加剧心肌炎的进展.

研究的目的:

开发多功能纳米粒子 (PMN@EDR) 过度表达PD-L1并装载EDaravone (EDR).
通过调节免疫反应和氧化应激来评估PMN@EDR在治疗心肌炎中的疗效.

主要方法:

PMN@EDR纳米颗粒的合成和表征.
在体外评估PMN@EDR针对CD4+T细胞和心肌细胞.
在肌心炎的小鼠模型中PMN@EDR的体内评估.

主要成果:

PMN@EDR有效向炎症刺激的CD4+T细胞和受损的心肌细胞.
通过PD-1/PD-L1通路,PMN@EDR抑制了CD4+T细胞的增殖和促炎性细胞因子的释放.
PMN@EDR发布EDR以清除自由基,抑制T细胞激活,并保护心肌细胞.
在体内,PMN@EDR减少了炎症,ROS水平和心肌细胞亡,改善了心脏功能.

结论:

PMN@EDR纳米颗粒为心肌炎提供了一种双重作用的治疗策略.
同时调节免疫反应和氧化应激,为心肌炎治疗提供了一个有前途的方法.

关键词:

生物模拟纳米颗粒生物模拟纳米颗粒一个是Edaravone.肌心炎是一种心肌炎.在PD-1/PD-L1中.

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