A neuron-glia interaction involving GABA transaminase contributes to sleep loss in sleepless mutants.
A neuron-glia interaction involving GABA transaminase contributes to sleep loss in sleepless mutants.
复制标题
涉及GABA转氨酶的神经元-GLIA相互作用有助于失眠突变体的睡眠丧失。
DOI:
10.1038/mp.2014.11
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发表时间:
2015-02
影响因子:
11
通讯作者:
Sehgal, A.
中科院分区:
文献类型:
--
作者:
Chen, W-F;Maguire, S.;Sowcik, M.;Luo, W.;Koh, K.;Sehgal, A.
Sleep is an essential process and yet mechanisms underlying it are not well understood. Loss of the Drosophila quiver/sleepless (qvr/sss) gene increases neuronal excitability and diminishes daily sleep, providing an excellent model for exploring the underpinnings of sleep regulation. Here, we used a proteomic approach to identify proteins altered in sss brains. We report that loss of sleepless post-transcriptionally elevates the CG7433 protein, a mitochondrial γ-aminobutyric acid transaminase (GABAT), and reduces GABA in fly brains. Loss of GABAT increases daily sleep and improves sleep consolidation, indicating that GABAT promotes wakefulness. Importantly, disruption of the GABAT gene completely suppresses the sleep phenotype of sss mutants, demonstrating that GABAT is required for loss of sleep in sss mutants. While SSS acts in distinct populations of neurons, GABAT acts in glia to reduce sleep in sss flies. Our results identify a novel mechanism of interaction between neurons and glia that is important for the regulation of sleep.
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DOI:
10.1523/jneurosci.0502-11.2011
发表时间:
2011-08-03
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Dean T;Xu R;Joiner W;Sehgal A;Hoshi T
通讯作者:
Hoshi T
DOI:
10.1093/database/baq005
发表时间:
2010-07-06
期刊:
Database : the journal of biological databases and curation
影响因子:
--
作者:
Knowles-Barley S;Longair M;Armstrong JD
通讯作者:
Armstrong JD
影响因子:
16.2
作者:
Ng, M;Roorda, RD;Miesenböck, G
通讯作者:
Miesenböck, G
影响因子:
5.3
作者:
Kume, K;Kume, S;Jackson, FR
通讯作者:
Jackson, FR
影响因子:
2.6
作者:
Beckervordersandforth, Ruth M.;Rickert, Christof;Technau, Gerhard M.
通讯作者:
Technau, Gerhard M.