综合系统生物学特征免疫介导的神经发育变化在小鼠寨卡病毒微头症
Kimino Fujimura1,2,3,4, Amanda J Guise1, Tojo Nakayama2
1F.M. Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
iScience
|June 19, 2023
概括
先天性寨卡病毒 (ZIKV) 感染通过抑制关键基因,包括与小头症相关的基因来破坏神经发育. 这项研究揭示了ZIKVV.
科学领域:
- 神经科学是一个神经科学.
- 病毒学 病毒学
- 基因组学就是基因组学.
背景情况:
- 先天性寨卡病毒 (ZIKV) 感染对胎儿神经发育构成重大威胁.
- 了解ZIKV诱导的大脑异常背后的分子机制对于治疗的发展至关重要.
研究的目的:
- 在先天性ZIKV感染后,对胚胎大脑中的分子通路干扰的特征.
- 识别受ZIKV感染影响的关键基因和蛋白质,这些基因和蛋白质有助于小头症.
主要方法:
- 综合性系统生物学方法结合了蛋白质组学和RNA测序.
- 来自一种野生型,具有免疫能力的原始ZIKV感染的小鼠模型的胚胎大脑组织的分析.
主要成果:
- 齐克病毒感染引发了强烈的免疫反应,并降低了关键的神经发育基因程序的调节.
- 在ZIKV多蛋白水平和宿主细胞周期蛋白之间观察到负相关性.
- 确定了与小头骨相关的基因/蛋白质的下调,例如Eomesodermin/T-box脑蛋白2 (EOMES/TBR2) 和神经区分2 (NEUROD2).
结论:
- 神经前体和神经元中的分子通路障碍有助于先天性ZIKV感染的复杂大脑表型.
- 这项研究提供了对ZIKV免疫病理景观和胚胎免疫反应在蛋白质和转录水平在发育中的大脑的见解.
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