Time dependent differential regulation of a novel long non-coding natural antisense RNA during long-term memory formation.

Time dependent differential regulation of a novel long non-coding natural antisense RNA during long-term memory formation.
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DOI:
10.1038/s41598-021-83190-4
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发表时间:
2021-02-11
期刊:
影响因子:
4.6
通讯作者:
Kemenes G
Kemenes G
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Korneev S;Garaliene J;Taylor G;Kemenes I;Kemenes G

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长的天然反义转录物(NAT)已被证明在各种真核生物中的显着数量。它们在神经系统中特别普遍,表明它们在神经功能中的重要性。然而,绝大多数长NAT的确切生理作用仍不清楚。在这里,我们报告一种新的软体动物一氧化氮合酶(NOS)相关的长非编码NAT(NOS 1AS)的特性。该NAT被剪接和多聚腺苷酸化,并从NAT-NOS 1基因的非模板链转录。我们证明了在记忆网络的关键神经元中,反义NOS 1AS与正义NOS 1 mRNA共表达。此外,我们报告说,NOS 1AS的时间和空间调节的一次审判条件反射,导致长期记忆(LTM)的形成。具体而言,在大脑中,但不是在颊神经节,在训练后的时间模式的变化,在NOS 1AS表达与记忆失效和非失效期的改变。我们的数据表明,NOS 1AS在一氧化氮依赖性LTM的巩固中发挥作用。
Long natural antisense transcripts (NATs) have been demonstrated in significant numbers in a variety of eukaryotic organisms. They are particularly prevalent in the nervous system suggesting their importance in neural functions. However, the precise physiological roles of the overwhelming majority of long NATs remain unclear. Here we report on the characterization of a novel molluscan nitric oxide synthase (NOS)-related long non-coding NAT (Lym-NOS1AS). This NAT is spliced and polyadenylated and is transcribed from the non-template strand of the Lym-NOS1 gene. We demonstrate that the Lym-NOS1AS is co-expressed with the sense Lym-NOS1 mRNA in a key neuron of memory network. Also, we report that the Lym-NOS1AS is temporally and spatially regulated by one-trial conditioning leading to long term memory (LTM) formation. Specifically, in the cerebral, but not in the buccal ganglia, the temporal pattern of changes in Lym-NOS1AS expression after training correlates with the alteration of memory lapse and non-lapse periods. Our data suggest that the Lym-NOS1AS plays a role in the consolidation of nitric oxide-dependent LTM.
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