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首页> 外文期刊>Neuron >Developmental Coordination during Olfactory Circuit Remodeling in Drosophila
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Developmental Coordination during Olfactory Circuit Remodeling in Drosophila

机译:果蝇在果蝇的嗅觉电路中的发育协调

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摘要

Developmental neuronal remodeling is crucial for proper wiring of the adult nervous system. While remodeling of individual neuronal populations has been studied, how neuronal circuits remodel-and whether remodeling of synaptic partners is coordinated-is unknown. We found that the Drosophila anterior paired lateral (APL) neuron undergoes stereotypic remodeling during metamorphosis in a similar time frame as the mushroom body (MB) gamma-neurons, with whom it forms a functional circuit. By simultaneously manipulating both neuronal populations, we found that cell-autonomous inhibition of gamma-neuron pruning resulted in the inhibition of APL pruning in a process that is mediated, at least in part, by Ca2+-Calmodulin and neuronal activity dependent interaction. Finally, ectopic unpruned MB gamma axons display ectopic connections with the APL, as well as with other neurons, at the adult, suggesting that inhibiting remodeling of one neuronal type can affect the functional wiring of the entire micro-circuit.
机译:发育神经元重塑对于成年神经系统的适当布线至关重要。在研究了个体神经元种群的重构,如何改造神经元电路 - 以及突触伴侣的重塑是否协调 - 是未知的。我们发现果蝇前部配对横向(APL)神经元在与蘑菇体(MB)γ-神经元类似的时间框架中经历陈规定型重塑,其形成功能电路。通过同时操纵神经元群体,我们发现γ-神经元修剪的细胞 - 自主抑制导致在至少部分地通过Ca2 + -Calmodulin和神经元活性依赖性相互作用抑制APL修剪。最后,异位未经治疗的MBγ轴突与APL的异位连接以及成年人的其他神经元显示,表明一种神经元类型的抑制可以影响整个微型电路的功能布线。

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  • 来源
    《Neuron》 |2018年第6期|共17页
  • 作者单位

    Weizmann Inst Sci Dept Mol Cell Biol IL-76100 Rehovot Israel;

    Stanford Univ Howard Hughes Med Inst Dept Biol Stanford CA 94305 USA;

    Stanford Univ Howard Hughes Med Inst Dept Biol Stanford CA 94305 USA;

    Univ Gottingen Johann Friedrich Blumenbach Inst Zool &

    Anthropol Dept Mol Neurobiol Behav D;

    Univ Gottingen Johann Friedrich Blumenbach Inst Zool &

    Anthropol Dept Mol Neurobiol Behav D;

    Weizmann Inst Sci Dept Mol Cell Biol IL-76100 Rehovot Israel;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 神经病学;
  • 关键词

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