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首页> 外文期刊>Neuron >HCN2 Channels in Cholinergic Interneurons of Nucleus Accumbens Shell Regulate Depressive Behaviors
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HCN2 Channels in Cholinergic Interneurons of Nucleus Accumbens Shell Regulate Depressive Behaviors

机译:HCN2通道胆碱能Interceeurons核心骨折壳调节抑郁行为

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摘要

Cholinergic interneurons (ChIs) in the nucleus accumbens (NAc) have been implicated in drug addiction, reward, and mood disorders. However, the physiological role of ChIs in depression has not been characterized. Here, we show that the tonic firing rate of ChIs in NAc shell is reduced in chronic stress mouse models and in a genetic mouse model of depression. Chemogenetic inhibition of NAc ChIs renders naive mice susceptible to stress, whereas enhancement of ChI activity reverses depressive phenotypes. As a component of the molecular mechanism, we found that the expression and function of the hyperpolarization-activated cyclic nucleotide-gated channel 2 (HCN2) are decreased in ChIs of NAc shell in depressed mice. Overexpression of HCN2 channels in ChIs enhances cell activity and is sufficient to rescue depressive phenotypes. These data suggest that enhancement of HCN2 channel activity in NAc ChIs is a feasible approach for the development of a new class of antidepressants.
机译:胆碱能Interneurons(Chis)在核心宫内(NAC)涉及吸毒成瘾,奖励和情绪障碍。 然而,智能在抑郁症的生理作用尚未表征。 在这里,我们表明,NAC壳中CHI的滋补烧制率在慢性应激小鼠模型中和抑郁症的遗传小鼠模型中减少。 NAC Chis的化学抑制促使朴素的小鼠易受压力的影响,而Chi活性的增强逆转抑郁表型。 作为分子机制的组分,我们发现高分子化激活的循环核苷酸门控通道2(HCN2)的表达和功能在抑制小鼠中的NAC壳的CHI中减少。 在CHI中的HCN2通道的过度表达增强了细胞活性并且足以拯救抑郁表型。 这些数据表明,NAC CHI中HCN2信道活动的增强是一种可行的开发新类抗抑郁药的方法。

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  • 来源
    《Neuron》 |2019年第4期|共16页
  • 作者单位

    Rockefeller Univ Lab Mol &

    Cellular Neurosci New York NY 10065 USA;

    Rockefeller Univ Lab Mol &

    Cellular Neurosci New York NY 10065 USA;

    Rockefeller Univ Lab Mol &

    Cellular Neurosci New York NY 10065 USA;

    Rockefeller Univ Lab Mol &

    Cellular Neurosci New York NY 10065 USA;

    Rockefeller Univ Lab Mol &

    Cellular Neurosci New York NY 10065 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 神经病学;
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