使用肺内皮微生理系统建模败血症相关的ARDS
bioRxiv : the preprint server for biology
|October 24, 2023
概括
这项研究使用肺内皮微生理系统 (MPS) 来分析败血症患者的血. 该MPS揭示了内皮通透性和炎症标记的增加,这表明了研究急性呼吸困扰综合征 (ARDS) 的新方法.
科学领域:
- 生物医学工程 生物医学工程
- 关键护理医学 关键护理医学
- 血管生物学 血管生物学
背景情况:
- 来自非肺源的急性呼吸窘迫综合征 (ARDS) 涉及内皮激活,难以在重症监护中评估.
- 临床前模型往往无法转化为人类疗法,因为在炎症反应中存在物种间的差异.
- 微生理系统 (MPS) 对人类反应提供了更高的忠诚度,并且比传统文化更好地预测药物的疗效.
研究的目的:
- 调整肺内皮MPS以评估败血症患者血对内皮功能的影响.
- 使用MPS评估内皮透性,粘附分子表达和炎症性细胞因子产生.
主要方法:
- 使用基于LumeNEXT平台的肺内皮MPS.
- 发光物被用来自重症败血症患者和健康捐赠者的血进行化.
- 测量了内皮通透性,ICAM-1表达和细胞因子水平 (IL-6,IL-18,sVEGF-R1).这些都被测量了.
主要成果:
- 败血症等离子体诱导了光层收缩,细胞覆盖的丧失和缺陷.
- 显著增加的内皮通透性和ICAM-1表达被观察到与败血症等离子体.
- 在败血症血中发现IL-6,IL-18和可溶性VEGF-R1度升高.
结论:
- 肺内皮MPS有效地模拟了败血症引起的内皮功能障碍.
- 这种MPS方法可能允许详细调查驱动ARDS在败血症患者的机制.
- 它为了解严重疾病中的内皮细胞反应提供了一个有前途的平台.
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