Cholinergic neurons constitutively engage the ISR for dopamine modulation and skill learning in mice.

Cholinergic neurons constitutively engage the ISR for dopamine modulation and skill learning in mice.
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DOI:
10.1126/science.abe1931
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发表时间:
2021-04-23
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Calakos N
Calakos N
中科院分区:
其他
文献类型:
--
作者:
Helseth AR;Hernandez-Martinez R;Hall VL;Oliver ML;Turner BD;Caffall ZF;Rittiner JE;Shipman MK;King CS;Gradinaru V;Gerfen C;Costa-Mattioli M;Calakos N

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整合应激反应(ISR)通过调节蛋白质合成维持蛋白质稳态,在突触可塑性、学习和记忆中起重要作用。我们开发了一种报告器(SPOTlight),用于以细胞分辨率对ISR状态进行全脑成像。出乎意料的是,我们在小鼠大脑中发现了一类神经元,纹状体胆碱能中间神经元(CINs),其中ISR在稳态时被激活。遗传学和药理学操作显示,ISR信号传导在CIN中对于正常的2型多巴胺受体(D2R)调节是必需的。抑制ISR逆转了CIN放电的D2R调制的迹象,并诱发多巴胺释放和改变技能学习。因此,一个非典型的,稳态模式的ISR激活被发现在CIN和ISR在学习中发挥神经调节作用。纹状体胆碱能中间神经元具有高稳态ISR激活,调节多巴胺调节和技能学习。
The integrated stress response (ISR) maintains proteostasis by modulating protein synthesis and is important in synaptic plasticity, learning and memory. We developed a reporter (SPOTlight) for brain-wide imaging of ISR state with cellular resolution. Unexpectedly, we found a class of neurons in mouse brains, striatal cholinergic interneurons (CINs), in which the ISR was activated at steady-state. Genetic and pharmacological manipulations revealed that ISR signaling was necessary in CINs for normal type 2 dopamine receptor (D2R) modulation. Inhibiting the ISR inverted the sign of D2R modulation of CIN firing and evoked dopamine release and altered skill learning. Thus, a non-canonical, steady-state mode of ISR activation is found in CINs and the ISR plays a neuromodulatory role in learning. Striatal cholinergic interneurons have high steady-state ISR activation that regulates dopamine modulation and skill learning.
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