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首页> 外文期刊>EMBO reports >Identification of the AFD neuron as the site of action of the CREB protein in Caenorhabditis elegans thermotaxis
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Identification of the AFD neuron as the site of action of the CREB protein in Caenorhabditis elegans thermotaxis

机译:鉴定AFD神经元是秀丽隐杆线虫热引物中CREB蛋白的作用位点

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摘要

Behaviour is a consequence of computation in neural circuits composed of massive synaptic connections among sensory neurons and interneurons. The cyclic AMP response element-binding protein (CREB) responsible for learning and memory is expressed in almost all neurons. Nevertheless, we find that the Caenorhabditis elegans CREB orthologue, CRH-1, is only required in the single bilateral thermosensory neuron AFD, for a memory-related behaviour. Restoration of CRH-1 in AFD of CREB-depleted crh-1 mutants rescues its thermotactic defect, whereas restorations in other neurons do not. In calcium-imaging analyses, the AFD neurons of CREB-depleted crh-1 mutants exhibit an abnormal response to temperature increase. We present a new platform for analysing the mechanism of behavioural memory at single-cellular resolution within the neural circuit.
机译:行为是由感觉神经元和中间神经元之间的大量突触连接组成的神经回路中计算的结果。负责学习和记忆的环状AMP反应元件结合蛋白(CREB)在几乎所有神经元中都有表达。但是,我们发现秀丽隐杆线虫CREB直系同源物CRH-1仅在单个双侧热感觉神经元AFD中才需要进行与记忆有关的行为。 CREB耗尽的crh-1突变体AFD中CRH-1的恢复可以挽救其热策略缺陷,而其他神经元的恢复则不能。在钙成像分析中,CREB耗尽的crh-1突变体的AFD神经元对温度升高表现出异常反应。我们提出了一个新的平台,用于分析神经回路内单细胞分辨率下行为记忆的机制。

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