Essential role of brain-derived neurotrophic factor in the regulation of serotonin transmission in the basolateral amygdala.

Essential role of brain-derived neurotrophic factor in the regulation of serotonin transmission in the basolateral amygdala.
复制标题

脑衍生的神经营养因子在基底外侧杏仁核调节5-羟色胺传播中的重要作用。

DOI:
10.1016/j.neuroscience.2012.08.025
复制
发表时间:
2012-11-08
期刊:
影响因子:
3.3
通讯作者:
Rios, M.
Rios, M.
中科院分区:
医学3区
文献类型:
--
作者:
Daftary, S. S.;Calderon, G.;Rios, M.

文献摘要

参考文献

被引文献

相似文献

人类和动物模型研究已经将脑源性神经营养因子(BDNF)与焦虑症的病因联系起来。这种多效性神经营养因子及其受体TrkB促进神经元存活、分化和突触可塑性。在这里,我们询问了BDNF在基底外侧杏仁核(BLA)的多巴胺能神经传递中的作用,BLA是与焦虑的神经生物学相关的边缘脑区域。我们发现野生型BLA中的GABA能和锥体投射神经元均含有TrkB受体。对脑选择性耗尽脑源性神经营养因子的BDNF 2L/2LCk-cre突变小鼠进行检查,发现BLA中5-羟色胺含量轻度下降。值得注意的是,BLA锥体细胞的全细胞记录揭示了BDNF 2L/2LCk-Cre突变小鼠中5-HT 2介导的GABA能和谷氨酸能传递调节的显著改变,导致过度兴奋回路。这些变化与5-HT 2受体表达减少有关。总的来说,这些结果表明BDNF在BLA中的5-羟色胺传递中所需的作用。此外,他们提出了一种机制,该机制是由干扰的BDNF信号引起的焦虑样行为增加的基础。
Human and animal model studies have linked brain-derived neurotrophic factor (BDNF) with the etiology of anxiety disorders. This pleiotropic neurotrophin and its receptor, TrkB, promote neuronal survival, differentiation and synaptic plasticity. Here we interrogated the role of BDNF in serotonergic neurotransmission in the basolateral amygdala (BLA), a limbic brain region associated with the neurobiology of anxiety. We found that both GABAergic and pyramidal projection neurons in the wild-type BLA contained TrkB receptors. Examination of BDNF2L/2LCk-cre mutant mice with brain-selective depletion of BDNF revealed mild decreases in serotonin content in the BLA. Notably, whole cell recordings in BLA pyramidal cells uncovered significant alterations in 5-HT2-mediated regulation of GABAergic and glutamatergic transmission in BDNF2L/2LCk-Cre mutant mice that result in a hyperexcitable circuit. These changes were associated with decreased expression of 5-HT2 receptors. Collectively, the results indicate a required role of BDNF in serotonin transmission in the BLA. Furthermore, they suggest a mechanism underlying the reported increase in anxiety-like behavior elicited by perturbed BDNF signaling.
DOI: 10.1093/cercor/10.10.974
发表时间: 2000-10-01
期刊: CEREBRAL CORTEX
影响因子: 3.7
作者:
Lambe, EK;Goldman-Rakic, PS;Aghajanian, GK
通讯作者: Aghajanian, GK
DOI: 10.1017/s0033291704003290
发表时间: 2005-06-01
影响因子: 6.9
作者:
Bremner, JD;Vermetten, E;Charney, DS
通讯作者: Charney, DS
DOI: 10.1017/s0033291707002231
发表时间: 2008-04-01
影响因子: 6.9
作者:
Bryant, R. A.;Felmingham, K.;Williams, L.
通讯作者: Williams, L.
DOI: 10.1177/0269881109103800
发表时间: 2010-05-01
影响因子: 4.1
作者:
Davies, S. J. C.;Esler, M.;Nutt, D. J.
通讯作者: Nutt, D. J.
DOI: 10.1016/s0169-328x(01)00183-8
发表时间: 2001-09-10
期刊: MOLECULAR BRAIN RESEARCH
影响因子: --
作者:
Madhav, TR;Pei, Q;Zetterström, TSC
通讯作者: Zetterström, TSC