Complementary Genetic Targeting and Monosynaptic Input Mapping Reveal Recruitment and Refinement of Distributed Corticostriatal Ensembles by Cocaine
Complementary Genetic Targeting and Monosynaptic Input Mapping Reveal Recruitment and Refinement of Distributed Corticostriatal Ensembles by Cocaine
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互补遗传靶向和单突触输入映射揭示了可卡因对分布式皮质纹状体集合的招募和细化
DOI:
10.1016/j.neuron.2019.10.032
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发表时间:
2019
期刊:
影响因子:
16.2
通讯作者:
Malenka, Robert C.
中科院分区:
文献类型:
--
作者:
Wall, Nicholas R.;Neumann, Peter A.;Beier, Kevin T.;Mokhtari, Ava K.;Luo, Liqun;Malenka, Robert C.
Drugs of abuse elicit powerful experiences that engage populations of neurons broadly distributed throughout the brain. To determine how synaptic connectivity is organized to enable robust communication between populations of drug-activated neurons, we developed a complementary targeting system for monosynaptic rabies virus (RV) tracing that identifies direct inputs to activated versus nonactivated neuronal populations. Analysis of over 100,000 synaptic input neurons demonstrated that cocaine-activated neurons comprise selectively connected but broadly distributed corticostriatal networks. Electrophysiological assays using optogenetics to stimulate activated versus nonactivated inputs revealed stronger synapses between coactivated cortical pyramidal neurons and neurons in the dorsal striatum (DS). Repeated cocaine exposure further enhanced the connectivity specifically between drug-activated neurons in the orbitofrontal cortex (OFC) and coactive DS neurons. Selective chemogenetic silencing of cocaine-activated OFC neurons or their terminals in the DS disrupted behavioral sensitization, demonstrating the utility of this methodology for identifying novel circuit elements that contribute to behavioral plasticity.
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影响因子:
25
作者:
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通讯作者:
Zeng H
DOI:
--
发表时间:
2009
期刊:
Pharmacology, Biochemistry and Behavior
影响因子:
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Cardona, Albert
影响因子:
16.2
作者:
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3.3
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