Ultrafast neuronal imaging of dopamine dynamics with designed genetically encoded sensors.
Ultrafast neuronal imaging of dopamine dynamics with designed genetically encoded sensors.
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DOI:
10.1126/science.aat4422
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发表时间:
2018-06-29
期刊:
影响因子:
--
通讯作者:
Tian L
中科院分区:
文献类型:
--
作者:
Patriarchi T;Cho JR;Merten K;Howe MW;Marley A;Xiong WH;Folk RW;Broussard GJ;Liang R;Jang MJ;Zhong H;Dombeck D;von Zastrow M;Nimmerjahn A;Gradinaru V;Williams JT;Tian L
Neuromodulatory systems exert profound influences on brain function. Understanding how these systems modify the operating mode of target circuits requires measuring spatiotemporally precise neuromodulator release. We developed dLight1, an intensity-based genetically encoded dopamine indicator, to enable optical recording of dopamine dynamics with high spatiotemporal resolution in behaving mice. We demonstrated the utility of dLight1 by imaging dopamine dynamics simultaneously with pharmacological manipulation, electrophysiological or optogenetic stimulation, and calcium imaging of local neuronal activity. dLight1 enabled chronic tracking of learning-induced changes in millisecond dopamine transients in striatum. Further, we used dLight1 to image spatially distinct, functionally heterogeneous dopamine transients relevant to learning and motor control in cortex. We also validated our sensor design platform for developing norepinephrine, serotonin, melatonin, and opioid neuropeptide indicators.
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