GABA neurons of the VTA drive conditioned place aversion.

GABA neurons of the VTA drive conditioned place aversion.
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DOI:
10.1016/j.neuron.2012.02.015
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发表时间:
2012-03-22
期刊:
影响因子:
16.2
通讯作者:
Lüscher C
Lüscher C
中科院分区:
医学1区
文献类型:
--
作者:
Tan KR;Yvon C;Turiault M;Mirzabekov JJ;Doehner J;Labouèbe G;Deisseroth K;Tye KM;Lüscher C

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显著但厌恶的刺激抑制腹侧被盖区(VTA)的大多数多巴胺(DA)神经元,并引起条件性位置厌恶(CPA)。DA神经元抑制的细胞机制尚未研究,与行为的因果关系仍然难以捉摸。在这里,我们表明,GABA神经元的腹侧被盖区抑制DA神经元通过神经传递在GABAA受体。我们还观察到,GABA神经元增加其发射响应于足电击,并提供证据表明,驱动GABA神经元与光遗传效应器是足以影响行为。总之,我们的数据表明,DA神经元的突触抑制驱动位置厌恶。
Salient but aversive stimuli inhibit the majority of dopamine (DA) neurons in the ventral tegmental area (VTA) and cause conditioned place aversion (CPA). The cellular mechanism underlying DA neuron inhibition has not been investigated and the causal link to behavior remains elusive. Here, we show that GABA neurons of the VTA inhibit DA neurons through neurotransmission at GABAA receptors. We also observe that GABA neurons increase their firing in response to a footshock and provide evidence that driving GABA neurons with optogenetic effectors is sufficient to affect behavior. Taken together, our data demonstrate that synaptic inhibition of DA neurons drives place aversion.
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