Axonal trafficking of an antisense RNA transcribed from a pseudogene is regulated by classical conditioning.

Axonal trafficking of an antisense RNA transcribed from a pseudogene is regulated by classical conditioning.
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DOI:
10.1038/srep01027
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发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
O'Shea, Michael
O'Shea, Michael
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Korneev, Sergei A.;Kemenes, Ildiko;Bettini, Natalia L.;Kemenes, George;Staras, Kevin;Benjamin, Paul R.;O'Shea, Michael

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天然反义转录本(NAT)是与已知RNA转录本互补的内源性RNA分子。NAT的功能意义还知之甚少,但它们在中枢神经系统中的流行表明它在大脑功能中发挥了作用。在这里,我们研究了一个长NAT(antiNOS-2 RNA),它与Lymneea中枢神经系统中一氧化氮(NO)的产生调节有关,这是一个已建立的学习和记忆分子分析模型。我们证明了抗NOS-2 RNA是轴向运输的,并证明了这是由经典条件作用调节的。关键是,一项单一的条件性试验改变了沿着轴突运输的抗NOS-2 RNA的量。这发生在记忆形成需要神经递质NO的关键时间窗口内。我们的数据表明,通过调节突触上的NO信号,抗NOS-2 RNA在建立记忆中发挥了作用。
Natural antisense transcripts (NATs) are endogenous RNA molecules that are complementary to known RNA transcripts. The functional significance of NATs is poorly understood, but their prevalence in the CNS suggests a role in brain function. Here we investigated a long NAT (antiNOS-2 RNA) associated with the regulation of nitric oxide (NO) production in the CNS of Lymnaea, an established model for molecular analysis of learning and memory. We show the antiNOS-2 RNA is axonally trafficked and demonstrate that this is regulated by classical conditioning. Critically, a single conditioning trial changes the amount of antiNOS-2 RNA transported along the axon. This occurs within the critical time window when neurotransmitter NO is required for memory formation. Our data suggest a role for the antiNOS-2 RNA in establishing memories through the regulation of NO signaling at the synapse.
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