Fluorescent Arc/Arg3.1 indicator mice: a versatile tool to study brain activity changes in vitro and in vivo.

Fluorescent Arc/Arg3.1 indicator mice: a versatile tool to study brain activity changes in vitro and in vivo.
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DOI:
10.1016/j.jneumeth.2009.07.015
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发表时间:
2009-10-30
影响因子:
3
通讯作者:
Osten, Pavel
Osten, Pavel
中科院分区:
医学4区
文献类型:
--
作者:
Grinevich, Valery;Kolleker, Alexander;Eliava, Marina;Takada, Naoki;Takuma, Hiroshi;Fukazawa, Yugo;Shigemoto, Ryuichi;Kuhl, Dietmar;Waters, Jack;Seeburg, Peter H.;Osten, Pavel

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大脑特有的立即早期基因 Arc/Arg3.1 是根据各种刺激(包括感觉和行为相关的神经活动)而被诱导的。在这里,我们报告了转基因小鼠的产生,称为 TgArc/Arg3.1-d4EGFP,在 Arc/Arg3.1 启动子的控制下表达 4 小时半衰期形式的增强型绿色荧光蛋白 (d4EGFP)。我们表明,d4EGFP 介导的荧光忠实地报告了 Arc/Arg3.1 对生理、病理和药理刺激的诱导反应,并且这种荧光允许对活体小鼠中激活的神经元进行电记录。此外,荧光 Arc/Arg3.1 指示器揭示了不同压力模式下以及阿尔茨海默病小鼠模型中特定大脑区域的活动变化。这些发现表明 TgArc/Arg3.1-d4EGFP 小鼠是一种多功能工具,可在体外和体内监测神经回路中 Arc/Arg3.1 的诱导。
The brain-specific immediate early gene Arc/Arg3.1 is induced in response to a variety of stimuli, including sensory and behavior-linked neural activity. Here we report the generation of transgenic mice, termed TgArc/Arg3.1-d4EGFP, expressing a 4-hour half-life form of enhanced green fluorescent protein (d4EGFP) under the control of the Arc/Arg3.1 promoter. We show that d4EGFP-mediated fluorescence faithfully reports Arc/Arg3.1 induction in response to physiological, pathological and pharmacological stimuli, and that this fluorescence permits electrical recording from activated neurons in the live mouse. Moreover, the fluorescent Arc/Arg3.1 indicator revealed activity changes in circumscribed brain areas in distinct modes of stress and in a mouse model of Alzheimer’s disease. These findings identify the TgArc/Arg3.1-d4EGFP mouse as a versatile tool to monitor Arc/Arg3.1 induction in neural circuits, both in vitro and in vivo.
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