The role of non-coding RNAs in the formation of long-term associative memory after single-trial learning in Lymnaea.

The role of non-coding RNAs in the formation of long-term associative memory after single-trial learning in Lymnaea.
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DOI:
10.3389/fnbeh.2022.1005867
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发表时间:
2022
影响因子:
3
通讯作者:
--
中科院分区:
医学3区
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长期联想记忆的分子机制的研究揭示了许多高度进化保守的分子途径在各种不同的脊椎动物和无脊椎动物模型系统中的关键作用。一个这样的系统是池塘蜗牛Stagnaea stagnalis,其中,像在其他系统中一样,转录因子CREB 1和CREB 2以及NOS酶在长期联想记忆的巩固中发挥重要作用。最近,表观遗传控制机制,如DNA甲基化,组蛋白修饰和非编码RNA对基因表达的控制也被发现在所有模型系统中发挥重要作用。在这篇小综述中,我们将重点关注如何,在古龙线虫,即使是一个单一的联想学习事件可以激活CREB和NO依赖的级联反应,由于训练诱导的上调或下调的表达水平,最近确定的短和长的非编码RNA。
Investigations of the molecular mechanisms of long-term associative memory have revealed key roles for a number of highly evolutionarily conserved molecular pathways in a variety of different vertebrate and invertebrate model systems. One such system is the pond snail Lymnaea stagnalis, in which, like in other systems, the transcription factors CREB1 and CREB2 and the enzyme NOS play essential roles in the consolidation of long-term associative memory. More recently, epigenetic control mechanisms, such as DNA methylation, histone modifications, and control of gene expression by non-coding RNAs also have been found to play important roles in all model systems. In this minireview, we will focus on how, in Lymnaea, even a single episode of associative learning can activate CREB and NO dependent cascades due to the training-induced up- or downregulation of the expression levels of recently identified short and long non-coding RNAs.
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