Imaging neural activity using Thy1-GCaMP transgenic mice.

Imaging neural activity using Thy1-GCaMP transgenic mice.
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DOI:
10.1016/j.neuron.2012.07.011
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发表时间:
2012-10-18
期刊:
影响因子:
16.2
通讯作者:
Feng G
Feng G
中科院分区:
医学1区
文献类型:
--
作者:
Chen Q;Cichon J;Wang W;Qiu L;Lee SJ;Campbell NR;Destefino N;Goard MJ;Fu Z;Yasuda R;Looger LL;Arenkiel BR;Gan WB;Feng G

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长期监测活体大脑中神经元活动的能力对于理解神经系统的组织和功能至关重要。基于基因编码的绿色荧光蛋白的钙传感器GCaMP为检测由神经元活动触发的神经元胞体、过程和突触中的钙瞬变提供了强有力的工具。在这里,我们报告的代和表征的转基因小鼠,表达改善GCaMPs在各种神经元亚群的Thy1启动子的控制下。在体外和体内的研究表明,自发和刺激诱发的神经元活动诱导的钙瞬变可以很容易地检测到在急性脑切片中的单个细胞和突触的水平,以及慢性清醒行为的动物。这些GCaMP转基因小鼠允许在活脑中定义的神经元群体的活动模式的调查,并将极大地促进解剖复杂的结构和功能的神经网络的关系。
The ability to chronically monitor neuronal activity in the living brain is essential for understanding the organization and function of the nervous system. The genetically encoded green fluorescent protein based calcium sensor GCaMP provides a powerful tool for detecting calcium transients in neuronal somata, processes, and synapses that are triggered by neuronal activities. Here we report the generation and characterization of transgenic mice that express improved GCaMPs in various neuronal subpopulations under the control of the Thy1 promoter. In vitro and in vivo studies show that calcium transients induced by spontaneous and stimulus-evoked neuronal activities can be readily detected at the level of individual cells and synapses in acute brain slices, as well as chronically in awake behaving animals. These GCaMP transgenic mice allow investigation of activity patterns in defined neuronal populations in the living brain, and will greatly facilitate dissecting complex structural and functional relationships of neural networks.
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