皮质转录组的性别特异调节,以应对睡眠剥夺
Tianyi Shi1, Ishani Shah2, Quang Dang1,3
1Sleep and Circadian Neuroscience Institute (SCNi), Nuffield Department of Clinical Neurosciences, New Biochemistry Building, University of Oxford, Oxford, United Kingdom.
Frontiers in neuroscience
|March 20, 2024
概括
雄性和雌性小鼠在睡眠不足后表现出明显的基因表达变化. 雄激素受体激活剂EZH2在大脑基因调节中影响这些性别差异.
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
- 遗传学 遗传学 是一个
背景情况:
- 睡眠行为的性别差异已被记录,但基本的分子机制在很大程度上是未知的.
- 现有的关于睡眠剥夺分子效应的研究是男性偏见的.
- 了解性别特异性反应对于全面的睡眠科学至关重要.
研究的目的:
- 为了研究睡眠剥夺后大脑皮层转录组中的性别差异.
- 确定导致男性和女性对睡眠丧失的不同反应的分子因素.
- 探索EZH2在睡眠剥夺期间性别特异性基因调节中的作用.
主要方法:
- 对雄性和雌性C57Bl/6J小鼠大脑皮层的转录组分析.
- 6小时的睡眠剥夺协议.
- 鉴定差异表达的基因和上游调控元素.
主要成果:
- 几个基因,包括*Bdnf*, *Fosb*, *Fosl2*,和 *Adcy7*,在男性中与女性相比,在睡眠剥夺后被调高.
- 雄激素受体激活转录因子EZH2被确定为这些性别差异的关键调节者.
- 不同基因表达影响与细胞重组,突触信号传递和学习相关的途径.
结论:
- 在老鼠大脑皮层中,EZH2调解了对睡眠剥夺的性别特异性转录反应.
- 这些基因所影响的下游通路可能解释了男性和女性睡眠剥夺的影响的差异.
- 这项研究强调了在睡眠研究中将性视为生物变量的重要性.
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