The non-coding RNA BC1 regulates experience-dependent structural plasticity and learning.

The non-coding RNA BC1 regulates experience-dependent structural plasticity and learning.
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非编码RNA BC1调控依赖于经验的结构可塑性及学习过程。

DOI:
10.1038/s41467-017-00311-2
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发表时间:
2017-08-17
影响因子:
16.6
通讯作者:
Bagni C
Bagni C
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Briz V;Restivo L;Pasciuto E;Juczewski K;Mercaldo V;Lo AC;Baatsen P;Gounko NV;Borreca A;Girardi T;Luca R;Nys J;Poorthuis RB;Mansvelder HD;Fisone G;Ammassari-Teule M;Arckens L;Krieger P;Meredith R;Bagni C

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脑细胞质(Bc1)RNA是一种参与神经元翻译控制的非编码RNA(NcRNA)。缺乏bc1与谷氨酸能传递改变和适应不良行为有关。在这里,我们发现BC1基因敲除(KO)小鼠桶状皮质中的锥体神经元在活体中显示出更大的兴奋性突触后电流和更多的自发活动。此外,BC1KO小鼠的脊椎头部和突触后密度增加,谷氨酸受体和PSD-95的突触水平增加。值得注意的是,BC1KO小鼠对胡须缺失、纹理新奇物体识别受损和社会行为改变的反应显示出异常的结构可塑性。因此,我们的研究强调了bc1 RNA在哺乳动物成年新皮质经验依赖性可塑性和学习中的作用,并提供了对大脑ncRNAs调节突触传递、可塑性和行为的功能的洞察,与智能障碍和精神障碍的背景下潜在的相关性。脑细胞质(Bc1)RNA是一种非编码RNA,与翻译调节、癫痫发作和焦虑有关。在这里,作者们表明,在皮质中,BC1RNA是感觉剥夺诱导的树突结构可塑性所必需的,也是正确的感觉学习和社会行为所必需的。
The brain cytoplasmic (BC1) RNA is a non-coding RNA (ncRNA) involved in neuronal translational control. Absence of BC1 is associated with altered glutamatergic transmission and maladaptive behavior. Here, we show that pyramidal neurons in the barrel cortex of BC1 knock out (KO) mice display larger excitatory postsynaptic currents and increased spontaneous activity in vivo. Furthermore, BC1 KO mice have enlarged spine heads and postsynaptic densities and increased synaptic levels of glutamate receptors and PSD-95. Of note, BC1 KO mice show aberrant structural plasticity in response to whisker deprivation, impaired texture novel object recognition and altered social behavior. Thus, our study highlights a role for BC1 RNA in experience-dependent plasticity and learning in the mammalian adult neocortex, and provides insight into the function of brain ncRNAs regulating synaptic transmission, plasticity and behavior, with potential relevance in the context of intellectual disabilities and psychiatric disorders. Brain cytoplasmic (BC1) RNA is a non-coding RNA that has been implicated in translational regulation, seizure, and anxiety. Here, the authors show that in the cortex, BC1 RNA is required for sensory deprivation-induced structural plasticity of dendritic spines, as well as for correct sensory learning and social behaviors.
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