Hippocampal 5-HT Input Regulates Memory Formation and Schaffer Collateral Excitation.

Hippocampal 5-HT Input Regulates Memory Formation and Schaffer Collateral Excitation.
复制标题

DOI:
10.1016/j.neuron.2018.04.030
复制
发表时间:
2018-06-06
期刊:
影响因子:
16.2
通讯作者:
Ansorge MS
Ansorge MS
中科院分区:
医学1区
文献类型:
--
作者:
Teixeira CM;Rosen ZB;Suri D;Sun Q;Hersh M;Sargin D;Dincheva I;Morgan AA;Spivack S;Krok AC;Hirschfeld-Stoler T;Lambe EK;Siegelbaum SA;Ansorge MS

文献摘要

参考文献

被引文献

相似文献

记忆储存的有效性和持续时间受神经调节递质作用的调节。5-羟色胺(5-HT)在无脊椎动物的内隐记忆中起着重要作用,但它在哺乳动物海马介导的外显记忆中的作用尚不清楚。具体而言,内源性5-HT释放的时空梯度引起的后果尚不清楚。在这里,我们将光遗传学技术应用于小鼠,以深入了解这一基本的生物学过程。我们发现,激活海马CA 1区的多巴胺能神经末梢既增强了CA 3-CA 1突触的兴奋性传递,又增强了空间记忆。相反,CA 1 5-HT末端的光遗传学沉默抑制空间记忆。我们还发现,突触增强是由5-HT 4受体介导的,并且5-HT 4受体功能的系统调节可以双向影响记忆的形成。总的来说,这些数据揭示了强有力的调节影响,海马功能和记忆形成的突触输入。
The efficacy and duration of memory storage is regulated by neuromodulatory transmitter actions. While the modulatory transmitter serotonin (5-HT) plays an important role in implicit forms of memory in the invertebrate Aplysia, its function in explicit memory mediated by the mammalian hippocampus is less clear. Specifically, the consequences elicited by the spatio-temporal gradient of endogenous 5-HT release are not known. Here we applied optogenetic techniques in mice to gain insight into this fundamental biological process. We find that activation of serotonergic terminals in the hippocampal CA1 region both potentiates excitatory transmission at CA3-to-CA1 synapses and enhances spatial memory. Conversely, optogenetic silencing of CA1 5-HT terminals inhibits spatial memory. We furthermore find that synaptic potentiation is mediated by 5-HT4 receptors, and that systemic modulation of 5-HT4 receptor function can bidirectionally impact memory formation. Collectively, these data reveal powerful modulatory influence of serotonergic synaptic input on hippocampal function and memory formation.
DOI: 10.1038/nn.3078
发表时间: 2012-03-25
影响因子: 25
作者:
通讯作者: --
DOI: 10.1016/s0028-3908(01)00123-x
发表时间: 2001-12-01
期刊: NEUROPHARMACOLOGY
影响因子: 4.7
作者:
Lamirault, L;Simon, H
通讯作者: Simon, H
DOI: 10.1073/pnas.1616515114
发表时间: 2016-12-20
影响因子: 11.1
作者:
Kempadoo, Kimberly A.;Mosharov, Eugene V.;Kandel, Eric R.
通讯作者: Kandel, Eric R.
DOI: 10.1126/science.1071089
发表时间: 2002-06-21
期刊: SCIENCE
影响因子: 56.9
作者:
Brun, VH;Otnæss, MK;Moser, EI
通讯作者: Moser, EI
DOI: 10.1016/j.bbr.2014.12.023
发表时间: 2015-03-15
影响因子: 2.7
作者:
Gray, Vanessa C.;Hughes, Robert N.
通讯作者: Hughes, Robert N.