Dual-Color Single-Cell Imaging of the Suprachiasmatic Nucleus Reveals a Circadian Role in Network Synchrony.
Dual-Color Single-Cell Imaging of the Suprachiasmatic Nucleus Reveals a Circadian Role in Network Synchrony.
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视交叉上核的双色单细胞成像揭示了网络同步的昼夜节律作用。
DOI:
10.1016/j.neuron.2020.07.012
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发表时间:
2020-10-14
期刊:
影响因子:
16.2
通讯作者:
Takahashi JS
中科院分区:
文献类型:
--
作者:
Shan Y;Abel JH;Li Y;Izumo M;Cox KH;Jeong B;Yoo SH;Olson DP;Doyle FJ 3rd;Takahashi JS
The suprachiasmatic nucleus (SCN) acts as a master pacemaker driving circadian behavior and physiology. Although the SCN is small, it is composed of many cell types, making it difficult to study the roles of particular cells. Here we have developed bioluminescent circadian reporter mice that are Cre-dependent, allowing the circadian properties of genetically-defined populations of cells to be studied in real time. Using a Color-Switch PER2::LUCIFERASE reporter that switches from red PER2::LUCIFERASE to green PER2::LUCIFERASE upon Cre recombination, we assessed circadian rhythms in two of the major classes of peptidergic neurons in the SCN: AVP (arginine vasopressin) and VIP (vasoactive intestinal polypeptide). Surprisingly, we find that circadian function in AVP neurons, not VIP neurons, is essential for autonomous network synchrony of the SCN and stability of circadian rhythmicity.
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