寨卡病毒诱导的自和神经干细胞命运决定之间的相互作用
Bindu1, Hriday Shanker Pandey1, Pankaj Seth2
1Department of Cellular and Molecular Neuroscience, Neurovirology Section, National Brain Research Centre, Manesar, Gurgaon, Haryana, 122052, India.
Molecular neurobiology
|November 1, 2023
概括
寨卡病毒蛋白NS4A和NS4B通过增加自和改变细胞信号来破坏胎儿神经干细胞的发育. 用3-MA抑制自会逆转这些有害影响,这表明Zika相关的大脑损伤的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 病毒学 病毒学
- 细胞生物学 细胞生物学
背景情况:
- 寨卡病毒 (ZIKV) 爆发是一个全球性的健康问题,因为它们与小头症有关.
- 从母亲传播给胎儿的ZIKV可以导致严重的脑发育障碍.
- 在ZIKV诱导的小头症背后的分子机制仍然不太清楚.
研究的目的:
- 研究ZIKV非结构性蛋白NS4A和NS4B在ZIKV病变发生中的作用.
- 探索NS4A和NS4B对人类胎儿神经干细胞 (fNSC) 的影响.
- 阐明涉及ZIKV诱导的神经病变发生的分子途径.
主要方法:
- 人类胎儿神经干细胞 (fNSCs) 的初级培养.
- 齐克病毒NS4A和NS4B蛋白的同时转化为fNSCs.
- 用3 - 甲基亚丁因 (3-MA) 治疗,它是一种自抑制剂.
- 对细胞增殖,神经发生,自标志物,Notch信号和活性氧物种 (ROS) 的分析.
主要成果:
- 同时感染NS4A和NS4B阻止了fNSC的增殖,并诱导了早发的神经发生.
- 在fNSC中NS4A+NS4B表达增加了自和失调的Notch信号.
- 3-MA治疗减轻了NS4A和NS4B的有害影响,恢复了Notch1的表达和增殖.
- 自诱导涉及线粒体裂变和ROS生成.
结论:
- ZIKV NS4A和NS4B蛋白通过自介导的Notch降解改变神经干细胞命运.
- 自在ZIKV诱导的神经病变发生过程中发挥着关键作用.
- 向自是一种潜在的治疗策略,用于ZIKV感染和相关的神经并发症.
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