从M1型微质细胞衍生出的外体对血脑屏障的损伤有助
Wen Jiang1, Yan Wu2, Ailan Pang2
1Department of Neurology, the First Affiliated Hospital of Kunming Medical University, No.295 Xichang Road, Kunming 650032, Yunnan, China; The Yunnan Province Clinical Research Center for Neurological Diseases, No.295 Xichang Road, Kunming 650032, Yunnan, China.
Brain research
|April 8, 2024
概括
来自微细胞的外体,特别是来自M1激活细胞的外体,通过改变细胞活力和透性,损害了血脑屏障 (BBB) 模型. 这些外体内含有微RNA (miRNA),可以调解BBB损伤,为中风提供潜在的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 外体细胞促进细胞间通信,并有可能用于中风治疗.
- 激活的微质细胞通过破坏血脑屏障 (BBB) 完整性来加剧中风.
研究的目的:
- 为了研究微质衍生的外体对BBB细胞模型的影响.
- 阐明了外体介导BBB损伤背后的分子机制.
主要方法:
- 由LPS诱导的BV2细胞的M1两极化;衍生出异构体的隔离.
- 使用星体细胞和End3细胞构建BBB细胞模型.
- 对TEER,透性,BBB蛋白表达和miRNA测序对外体效应的分析.
主要成果:
- 在BBB模型中,M1型微细胞外体减少了细胞活力和增加了细胞亡.
- M1型微细胞外体增强了BBB的透性,降低了TEER,并减少了紧结蛋白的表达.
- 测序确定了M1外体中针对神经路径的71个差异表达的miRNA.
结论:
- 从M1型微质细胞衍生出的外体通过miRNA参与导致BBB细胞模型损伤.
- 研究结果表明M1微质细胞外体是中风治疗的潜在治疗点.
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