通过PI3K/AKT通路,YTHDF2调节的马特里林-3通过PI3K/AKT通路缓解了在缺血性中风中发生的输血后的出血转变
Hanze Chen1, Siping Guo2, Runnan Li2
1Department of Neurology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China.
Journal of neuropathology and experimental neurology
|January 17, 2024
概括
在缺血性中风模型中,Matrilin-3治疗减轻了出血转变和心脏病发作量. YTH N6-甲基氨酸RNA结合蛋白F2 (YTHDF2) 负调节的母蛋白-3,影响PI3K/AKT通路和血脑屏障的完整性.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 流血转化是再通道化后缺血性中风的并发症.
- 早期干预对于管理中风后并发症至关重要.
研究的目的:
- 研究马特里林-3在减轻缺血性中风后出血性转变中的治疗潜力.
- 阐明YTH N6-甲基氨酸RNA结合蛋白F2 (YTHDF2) 在母蛋白-3表达中的调节作用及其下游影响.
主要方法:
- 在老鼠中暂时中脑动脉封闭 (tMCAO) 以模拟脑缺血-再输血.
- 在C8-D1A细胞中缺氧-葡萄糖 (OGD) 以模拟缺血.
- 血红蛋白测定和TTC染色用于出血和心脏病发作体积评估.
- RNA免疫沉降测定和actinomycin D治疗以研究YTHDF2-matrilin-3相互作用.
主要成果:
- 马特里林-3治疗减少了tMCAO大鼠的出血和心脏病发作量.
- 在OGD诱导的细胞中,YTHDF2对matrilin-3表达的负调节.
- 马特里林-3调节PI3K/AKT通路,影响血脑屏障蛋白 (ZO-1,VE-cadherin,occludin) 和JNK信号传递.
- YTHDF2的淘汰影响了PI3K/AKT通路,炎症和血脑屏障的完整性,其影响因母蛋白-3缺乏而逆转.
结论:
- 通过PI3K/AKT通路,由YTHDF2调节的马特里林-3可防止通过PI3K/AKT通路在缺血性中风中发生后输血性转变.
- 马特里林-3证明了治疗缺血性中风并发症的治疗潜力.
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