Gating of social reward by oxytocin in the ventral tegmental area.

Gating of social reward by oxytocin in the ventral tegmental area.
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DOI:
10.1126/science.aan4994
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发表时间:
2017-09-29
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Malenka RC
Malenka RC
中科院分区:
其他
文献类型:
--
作者:
Hung LW;Neuner S;Polepalli JS;Beier KT;Wright M;Walsh JJ;Lewis EM;Luo L;Deisseroth K;Dölen G;Malenka RC

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社会互动产生的奖励对于促进亲社会行为至关重要。在这里,我们提出的证据表明,催产素(OXT)释放腹侧被盖区(VTA),大脑的奖励回路的关键节点,是必要的,以引起社会奖励。在社会交往过程中,室旁核(PVN)OXT神经元的活动增加。直接激活PVN中的这些神经元或其在VTA中的终末增强了亲社会行为。相反,VTA中PVN OXTaxon末端的抑制减少了社会互动。OXT增加了对奖励特异性VTA多巴胺(DA)神经元的兴奋性驱动。这些结果表明,OXT促进亲社会行为,通过直接影响腹侧被盖区DA神经元,从而提供了社会互动如何产生有益的经验机制的见解。
The reward generated by social interactions is critical for promoting prosocial behaviors. Here we present evidence that oxytocin (OXT) release in the ventral tegmental area (VTA), a key node of the brain’s reward circuitry, is necessary to elicit social reward. During social interactions, activity in paraventricular nucleus (PVN) OXTneurons increased. Direct activation of these neurons in the PVN or their terminals in the VTA enhanced prosocial behaviors. Conversely, inhibition of PVN OXTaxon terminals in the VTA decreased social interactions. OXT increased excitatory drive onto reward-specific VTA dopamine (DA) neurons. These results demonstrate that OXTpromotes prosocial behavior through direct effects on VTA DA neurons, thus providing mechanistic insight into how social interactions can generate rewarding experiences.
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期刊: Science (New York, N.Y.)
影响因子: --
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