使用人类皮质器官微生理系统了解阿尔茨海默病中单细胞驱动的神经炎症
Chunhui Tian1, Zheng Ao1, Jonas Cerneckis2,3
1Department of Intelligent Systems Engineering, Indiana University Bloomington, IN 47405, USA.
Science advances
|August 22, 2025
概括
阿尔茨海默病 (AD) 涉及神经炎症. 新的人类皮质器官模型显示,阿尔茨海默病患者的单细胞透更多,清除较少的粉样β,并加剧炎症,影响神经细胞和神经元的健康.
科学领域:
- 神经科学
- 免疫学
- 生物医学工程
背景情况:
- 神经炎症越来越多地与阿尔茨海默病 (AD) 的发病有关.
- 由于人体模型有限,外围单细胞在阿尔茨海默病中的作用尚不充分研究.
- 开发先进的模型对于了解AD中单细胞介导的神经炎症至关重要.
研究的目的:
- 引入和验证人类皮质器官微生理系统 (hCO-MPS) 用于研究AD单细胞介导的神经炎症.
- 与健康对照组相比,研究阿尔茨海默病患者单细胞的功能差异.
- 阐明AD单细胞导致神经炎症和疾病进展的机制.
主要方法:
- 使用3D打印设备和在96孔板中的甜甜圈形状皮质器官生成hCO-MPS.
- 评估单细胞透,粉样β清除和炎症反应.
- 对神经细胞激活,神经元亡和基因表达的分析 (IL1B,CCL3).
主要成果:
- hCO- MPS 显示死亡减少,缺氧减少,活力改善.
- 与对照组相比,阿尔茨海默病患者的单细胞透率增加和粉样β清除率降低.
- 诱导AD单细胞增加了星球细胞激活,神经元亡以及IL1B和CCL3的表达.
结论:
- 通过促炎作用,外围单细胞在阿尔茨海默氏症的发病过程中发挥着重要作用.
- 艾滋病单细胞表现出明显的功能缺陷和高度的炎症潜力.
- 开发的hCO-MPS为研究AD和其他神经疾病中的神经炎症提供了可行的平台.
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