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在睡眠依赖的记忆过程中RNA处理基因的调制.

Yongjun Li1,2, Nitin S Chouhan1, Shirley L Zhang1

  • 1Howard Hughes Medical Institute and Chronobiology and Sleep Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, United States.

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概括

在Drosophila中,睡眠依赖的记忆巩固涉及前后神经元中的特定RNA处理基因. 降低Polr1F的调节促进睡眠,而Regnase-1对记忆形成至关重要.

关键词:
D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. D. melanogaster. melanogaster. D. melanogaster. melanogaster. D. melanogaster. D. melanogaster. melanogaster. D.这种植物是Drosophila.处理RNA处理RNA的过程记忆 记忆 记忆 记忆 记忆神经科学 神经科学睡眠 睡眠 睡眠 睡眠 睡眠

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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 是一个遗传学.

背景情况:

  • 德洛索菲拉的记忆巩固可以依赖于睡眠或独立,受食物可用性的影响.
  • 体 (MB) 中的前后 (ap) alpha'/beta' (α'/β') 神经元对于睡眠依赖的记忆巩固和睡眠后训练的增加至关重要.

研究的目的:

  • 调查睡眠和记忆巩固启动的分子机制.
  • 在食欲记忆调节后分析ap α'/β'神经元的转录组.

主要方法:

  • 对apα'/β'神经元的转录组分析,在被养与被饿死Drosophila的1小时后进行调节.
  • 在apα'/β'神经元中进行基因淘汰实验,以评估睡眠和记忆表型.
  • 对 Polr1F 和 Regnase-1 的表达和功能的分析.

主要成果:

  • 一个RNA处理基因的子集在条件化后在apα'/β'神经元中显示了差异性表达.
  • Knockdown of Polr1F促进了睡眠和增加了翻译,这表明其降低调节有助于睡眠依赖的记忆.
  • 雷格纳斯-1 knockdown 损害了记忆力,但其在睡眠中的作用似乎是发育性的,与睡眠依赖的记忆巩固没有直接联系.

结论:

  • 在Drosophila的睡眠依赖性记忆巩固过程中,RNA处理基因表达被调节.
  • 在apα'/β'神经元中的Polr1F下调有助于增加与记忆形成相关的睡眠.
  • 调节酶-1在记忆巩固中发挥着重要作用,尽管在睡眠依赖的记忆过程中其下调需要进一步调查.