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成年期新皮质网络中GABA受体信号传导的系统发育分歧。

Phylogenetic divergence of GABA receptor signaling in neocortical networks over adult life.

作者信息

Wilson Max A, Sumera Anna, Taylor Lewis W, Meftah Soraya, McGeachan Robert I, Modebadze Tamara, Jayasekera B Ashan P, Cowie Christopher J A, LeBeau Fiona E N, Liaquat Imran, Durrant Claire S, Brennan Paul M, Booker Sam A

机构信息

Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK.

Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh, EH8 9XD, UK.

出版信息

Nat Commun. 2025 May 6;16(1):4194. doi: 10.1038/s41467-025-59262-8.

DOI:10.1038/s41467-025-59262-8
PMID:40328769
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12056048/
Abstract

Cortical circuit activity is controlled by GABA-mediated inhibition in a spatiotemporally restricted manner. GABA receptor (GABAR) signalling exerts powerful slow inhibition that controls synaptic, dendritic and neuronal activity. But, how GABARs contribute to circuit-level inhibition over the lifespan of rodents and humans is poorly understood. In this study, we quantitatively determined the functional contribution of GABAR signalling to pre- and postsynaptic domains in rat and human cortical principal cells. We find that postsynaptic GABAR differentially control pyramidal cell activity within the cortical column as a function of age in rodents, but minimally change over adult life in humans. Presynaptic GABARs exert stronger inhibition in humans than rodents. Pre- and postsynaptic GABARs contribute to co-ordination of local information processing in a layer- and species-dependent manner. Finally, we show that GABAR signalling is elevated in patients that have received the anti-seizure medication Levetiracetam. These data directly increase our knowledge of translationally relevant local circuit dynamics, with direct impact on understanding the role of GABARs in the treatment of seizure disorders.

摘要

皮质回路活动由GABA介导的抑制以时空受限的方式控制。GABA受体(GABAR)信号传导发挥强大的慢抑制作用,控制突触、树突和神经元活动。但是,GABAR如何在啮齿动物和人类的整个生命周期中对回路水平的抑制起作用,目前还知之甚少。在这项研究中,我们定量确定了GABAR信号传导对大鼠和人类皮质主细胞突触前和突触后区域的功能贡献。我们发现,在啮齿动物中,突触后GABAR根据年龄差异控制皮质柱内锥体细胞的活动,但在人类成年期变化极小。突触前GABAR在人类中比在啮齿动物中发挥更强的抑制作用。突触前和突触后GABAR以层和物种依赖的方式促进局部信息处理的协调。最后,我们表明,接受抗癫痫药物左乙拉西坦治疗的患者中GABAR信号传导增强。这些数据直接增加了我们对与转化相关的局部回路动力学的了解,对理解GABAR在癫痫疾病治疗中的作用有直接影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/45603187f739/41467_2025_59262_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/5ba5d788f059/41467_2025_59262_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/4182828f1b3b/41467_2025_59262_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/b56c17689586/41467_2025_59262_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/44ad4b1fafb7/41467_2025_59262_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/abb23994dc52/41467_2025_59262_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/4d5dcbdbb47a/41467_2025_59262_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/728ad4f24aeb/41467_2025_59262_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/45603187f739/41467_2025_59262_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/5ba5d788f059/41467_2025_59262_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/4182828f1b3b/41467_2025_59262_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/b56c17689586/41467_2025_59262_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/44ad4b1fafb7/41467_2025_59262_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/abb23994dc52/41467_2025_59262_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/4d5dcbdbb47a/41467_2025_59262_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/728ad4f24aeb/41467_2025_59262_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e3f/12056048/45603187f739/41467_2025_59262_Fig8_HTML.jpg

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