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透过膜上皮细胞向的脂质纳米粒子输送,精确治疗呼吸器诱导的肺损伤

Ning Ding^1,2,3, Hui Xiao^1,2, Huiqing Li^2,3

¹Hainan Women and Children's Medical Center, Hainan Medical University, Hainan Academy of Medical Sciences, Haikou, China.

|June 16, 2025

概括

一种新型的脂纳米粒子输送系统通过抑制炎症细胞因子而有效地准呼吸器诱导的肺损伤 (VILI),而不会影响肺免疫. 这种方法对精确的VILI治疗有希望.

科学领域:

生物医学工程生物医学工程
纳米技术纳米技术
呼吸系统医学呼吸系统医学

背景情况:

呼吸器诱导的肺损伤 (VILI) 涉及炎症性细胞因子的释放,这是一个关键的病理机制.
目前的治疗方法,如小干扰RNA (siRNA),可以损害先天免疫反应.
准VILI诱导的细胞因子生产,同时保持肺免疫力是一个关键的治疗目标.

研究的目的:

开发一种针对VILI治疗的向传递系统,可以选择性地抑制炎症途径.
为了确定一种特别向VILI中的激活膜上皮细胞 (AECs) 的.
评估用于VILI治疗的新型纳米复合物的疗效和安全性.

主要方法:

使用体内菌体显示,高通量测序和生物信息学来识别激活AEC的向 (SPFPT).
开发了脂质纳米粒子 (LNPs) 来与SPFPT一起提供importin-7 siRNA (siImp7) 和聚达丁 (PD).
通过体外和体外VILI模型评估SPFPT@siImp7/PD-LNP的输送效率和治疗效果.

主要成果:

SPFPT@siImp7/PD-LNP证明了机械拉伸激活AEC的增强准.
内施用显著降低了炎症性细胞因子的释放,并改善了VILI和远端器官损伤.
治疗有效地抑制了p38和NF-κB通路,而不会损害肺内在免疫力.

结论:

开发的SPFPT@siImp7/PD-LNP纳米复合体显示了精确VILI处理的巨大潜力.
这种有针对性的方法提供了一个有希望的策略,通过调节炎症反应来管理VILI.
该系统有效地治疗VILI,同时保持基本的肺免疫功能.

关键词:

细胞因子细胞因子药物输送是药物输送的过程.脂质纳米颗粒是一种纳米粒子.这是一种类.呼吸机引起的肺损伤

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