介质细胞干细胞缓解长期的心肺旁路诱导的神经炎症
Kei Kobayashi1, Takuya Maeda1, Nemanja Saric1
1Children's National Heart Center and Center for Neuroscience Research, Children's National Hospital, Washington, DC, 20010, United States.
Interdisciplinary cardiovascular and thoracic surgery
|November 9, 2025
概括
骨髓衍生中细胞 (BM-MSCs) 有效地降低了猪仔在延长心肺旁路 (CPB) 期间的炎症和微质激活. 这表明BM-MSC疗法有望缓解重症关键护理环境中的严重炎症反应.
科学领域:
- 心血管外科心血管外科
- 神经炎症是一种神经炎症.
- 再生医学是一种再生医学.
背景情况:
- 心肺绕道 (CPB) 可以诱导全身炎症和微质激活.
- 骨髓衍生中酶体 stromal 细胞 (BM-MSCs) 在缓解CPB期间广泛的炎症反应的有效性需要进一步研究.
研究的目的:
- 评估BM-MSC治疗在管理与长期CPB相关的广泛炎症反应方面的有效性.
- 为了研究BM-MSCs对微质激活和CPB后大脑中的炎症标记物的影响.
主要方法:
- 两周大的猪仔接受了CPB与或没有深度低温循环停止 (DHCA) 和BM-MSC管理.
- 在重新加热过程中,BM-MSCs (1 × 10^7细胞/kg) 通过CPB电路进行了管理.
- 分析了血细胞因子,大脑组织中的微质激活,以及前运动皮质中的基因表达.
主要成果:
- 扩展的CPB显著增加了白质微质和干扰素- (IFN-γ) 和TNF-α的血水平.
- BM-MSC治疗使微质扩张正常化和调节细胞因子配置,包括减少IFN-γ和增加IL-10,IL-1β和IL-8.
- 相关性表明IFN-γ和微质激活之间存在正相关性,IL-10,IL-1β,IL-8和微质激活之间存在逆相关性.
结论:
- 通过CPB给药BM-MSC有效降低了广泛的炎症应激和微质激活.
- 该模型为研究CPB诱导的神经炎症和BM-MSCs的治疗机制提供了一个平台.
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