Role of a VGF/BDNF/TrkB Autoregulatory Feedback Loop in Rapid-Acting Antidepressant Efficacy.

Role of a VGF/BDNF/TrkB Autoregulatory Feedback Loop in Rapid-Acting Antidepressant Efficacy.
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DOI:
10.1007/s12031-018-1124-0
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发表时间:
2019-07
期刊:
Journal of molecular neuroscience : MN
影响因子:
--
通讯作者:
Salton SR
Salton SR
中科院分区:
其他
文献类型:
--
作者:
Jiang C;Lin WJ;Salton SR

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神经营养因子家族的成员,特别是脑源性神经营养因子(BDNF)调节对快速和缓慢作用的化学抗抑郁药和自愿运动的反应。最近的研究表明,调节n-甲基- d-天冬氨酸受体(NMDA-R)信号的速效抗抑郁药(如氯胺酮和GLYX-13)需要VGF(非首字母缩写)的表达,VGF是bdnf诱导分泌的神经元蛋白和肽前体,才能发挥作用。此外,在强迫游泳试验(FST)中,vgf衍生的c端肽TLQP-62(以其4个n端氨基酸和长度命名)在体外或海马内给药后具有抗抑郁功效。与氯胺酮类似,TLQP-62的快速抗抑郁作用需要BDNF表达、mTOR激活(雷帕霉素敏感)、α-氨基-3-羟基-5-甲基-4-异氧唑丙酸受体激活(nbqx敏感),并与GluR1插入相关。我们回顾了最近的研究发现,发现了一个快速诱导的自我调节反馈回路,它可能在速效抗抑郁药的持续疗效、抑郁样行为和认知中发挥关键作用,并需要VGF、其c端肽TLQP-62、BDNF/TrkB信号、mTOR途径和AMPA受体的激活和插入。
Members of the neurotrophin family and in particular brain-derived neurotrophic factor (BDNF) regulate the response to rapid- and slow-acting chemical antidepressants and voluntary exercise. Recent work suggests that rapid-acting antidepressants that modulate N-methyl-D-aspartate receptor (NMDA-R) signaling (e.g. ketamine and GLYX-13) require expression of VGF (non-acronymic), the BDNF-inducible secreted neuronal protein and peptide precursor, for efficacy. In addition, the VGF-derived C-terminal peptide TLQP-62 (named by its 4 N-terminal amino acids and length) has antidepressant efficacy following icv or intra-hippocampal administration, in the forced swim test (FST). Similar to ketamine, the rapid antidepressant actions of TLQP-62 require BDNF expression, mTOR activation (rapamycin-sensitive), α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor activation (NBQX-sensitive), and are associated with GluR1 insertion. We review recent findings that identify a rapidly-induced autoregulatory feedback loop, which likely plays a critical role in sustained efficacy of rapid-acting antidepressants, depression-like behavior, and cognition, and requires VGF, its C-terminal peptide TLQP-62, BDNF/TrkB signaling, the mTOR pathway, and AMPA receptor activation and insertion.
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