通过单个类指挥神经元触发和调制Drosophila中的复杂行为
Magdalena Fernandez-Acosta1, Rebeca Zanini1,2, Fabiana Heredia1,2
1iNOVA4Health, Nova Medical School, Universidade Nova de Lisboa, Lisbon 1150-082, Portugal.
概括
研究人员确定了Myoinhibiting (Mip) 作为一个关键的神经调节器,控制Drosophila幼虫在化期间的粘合剂驱逐和传播行为 (GSB). Mip分泌神经元充当指挥神经元,对于这一关键的发育过渡至关重要.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 昆虫的行为昆虫的行为
背景情况:
- 草虫幼虫经历化,这是由ecdysone触发的变形阶段.
- 化过程中基质的附着包括粘合剂驱逐和扩散行为 (GSB).
- Dilp8-Lgr3信号传输对于启动GSB至关重要,但下游因素仍然不清楚.
研究的目的:
- 为了识别控制GSB的Dilp8-Lgr3信号的下游的神经因素和电路.
- 阐明肌肉抑制 (Mip) 在调节GSB中的作用.
- 了解Mip表达下降神经元在协调人群行为中的作用.
主要方法:
- 在Drosophila.细胞类型特定的RNA干扰.
- 化和GSB的行为监测.
- 神经沉默 (超极化) 和特定神经元群体的激活 (光遗传学).
主要成果:
- 肌肉抑制 (Mip) 被确定为一个神经调节器,对多个GSB组件至关重要.
- 在 Dilp8-Lgr3 信号传递下游的大脑下降神经元中,Mip 起作用.
- Mip下降神经元作为GSB的指挥神经元,并通过SPR表达神经元调节GSB的行为.
结论:
- Mip下降神经元是GSB的关键指挥神经元,在Drosophila变形过程中对于基质附着至关重要.
- Mip-SPR信号在调节先天性行为中起着保留的作用.
- 这项研究揭示了通过指挥神经元和神经信号传递的先天行为复杂的时间协调.
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