Transient activation of specific neurons in mice by selective expression of the capsaicin receptor.

Transient activation of specific neurons in mice by selective expression of the capsaicin receptor.
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DOI:
10.1038/ncomms1749
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发表时间:
2012-03-20
影响因子:
16.6
通讯作者:
--
中科院分区:
综合性期刊1区
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--
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控制神经元亚型的电活动的能力是破译复杂神经回路中离散细胞群作用的有价值的工具。最近允许远程控制神经元的技术要么是劳动密集型和侵入性的,要么是间接地与低时间分辨率的神经电位相结合。在这里,我们通过产生两种可诱导的转基因小鼠模型,展示了基因鉴定的神经元亚群的快速、可逆和直接激活。辣椒素受体TRPV1的限制性表达允许在外周或口服给药配体后在自由移动的小鼠中进行细胞特异性激活。辣椒素诱导的多巴胺能或血清素能神经元的激活在几分钟内可逆地改变生理和行为反应,并持续约10分钟。这些模型展示了一种强大的、远程可控的遗传工具,可以调节不同的细胞群,而不需要侵入性和劳动密集型的方法。
The ability to control the electrical activity of a neuronal subtype is a valuable tool in deciphering the role of discreet cell populations in complex neural circuits. Recent techniques that allow remote control of neurons are either labor intensive and invasive or indirectly coupled to neural electrical potential with low temporal resolution. Here we show the rapid, reversible and direct activation of genetically identified neuronal subpopulations by generating two inducible transgenic mouse models. Confined expression of the capsaicin receptor, TRPV1, allows cell-specific activation after peripheral or oral delivery of ligand in freely moving mice. Capsaicin-induced activation of dopaminergic or serotonergic neurons reversibly alters both physiological and behavioural responses within minutes, and lasts ~10 min. These models showcase a robust and remotely controllable genetic tool that modulates a distinct cell population without the need for invasive and labour-intensive approaches.
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