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How the enriched get richer? Experience-dependent modulation of microRNAs and the therapeutic effects of environmental enrichment.
Pharmacology Biochemistry and Behavior ( IF 3.6 ) Pub Date : 2020-05-13 , DOI: 10.1016/j.pbb.2020.172940
Maria Kuznetsova 1 , Carey Wilson 1 , Anthony J Hannan 2 , Thibault Renoir 3
Affiliation  

Environmental enrichment and physical exercise have many well-established health benefits. Although these environmental manipulations are known to delay symptom onset and progression in a variety of neurological and psychiatric conditions, the mechanisms underlying these effects remain poorly understood. A notable candidate molecular mechanism is that of microRNA, a family of small noncoding RNAs that are important regulators of gene expression. Research investigating the many diverse roles of microRNAs has greatly expanded over the past decade, with several promising preclinical and clinical studies highlighting the role of dysregulated microRNA expression (in the brain, blood and other peripheral systems) in understanding the aetiology of disease. Altered microRNA levels have also been described following environmental interventions such as exercise and environmental enrichment in non-clinical populations and wild-type animals, as well as in some brain disorders and associated preclinical models. Recent studies exploring the effects of stimulating environments on microRNA levels in the brain have revealed an array of changes that are likely to have important downstream effects on gene expression, and thus may regulate a variety of cellular processes. Here we review literature that explores the differential expression of microRNAs in rodents following environmental enrichment and exercise, in both healthy control animals and preclinical models of relevance to neurological and psychiatric disorders.



中文翻译:

富人如何致富?microRNA的经验依赖性调节和环境富集的治疗效果。

丰富环境和体育锻炼具有许多公认的健康益处。尽管已知这些环境操作会延迟各种神经病学和精神病学症状的发作和进展,但对这些作用的机制仍知之甚少。一个显着的候选分子机制是microRNA的机制,microRNA是一个小的非编码RNA家族,是基因表达的重要调节剂。在过去的十年中,有关microRNA多种作用的研究已经大大扩展,一些有希望的临床前和临床研究强调了失调的microRNA表达(在大脑,血液和其他外围系统中)在理解疾病病因中的作用。在非临床种群和野生型动物以及某些脑部疾病和相关的临床前模型中,通过环境干预(例如运动和环境富集)后,还描述了改变的microRNA水平。最近的研究探索了刺激环境对大脑中microRNA水平的影响,发现了一系列变化,这些变化可能对基因表达产生重要的下游影响,从而可能调节多种细胞过程。在这里,我们回顾了研究文献,这些文献探讨了健康对照动物以及与神经系统疾病和精神疾病相关的临床前模型中环境富集和运动后啮齿动物中microRNA的差异表达。以及某些脑部疾病和相关的临床前模型。最近的研究探索了刺激性环境对大脑中microRNA水平的影响,发现了一系列变化,这些变化可能对基因表达产生重要的下游影响,因此可以调节多种细胞过程。在这里,我们回顾了有关文献,这些文献探讨了健康对照动物以及与神经系统疾病和精神疾病相关的临床前模型中环境富集和运动后啮齿动物中microRNA的差异表达。以及某些脑部疾病和相关的临床前模型。最近的研究探索了刺激环境对大脑中microRNA水平的影响,发现了一系列变化,这些变化可能对基因表达产生重要的下游影响,从而可能调节多种细胞过程。在这里,我们回顾了研究文献,这些文献探讨了健康对照动物以及与神经系统疾病和精神疾病相关的临床前模型中环境富集和运动后啮齿动物中microRNA的差异表达。因此可以调节各种细胞过程。在这里,我们回顾了研究文献,这些文献探讨了健康对照动物以及与神经系统疾病和精神疾病相关的临床前模型中环境富集和运动后啮齿动物中microRNA的差异表达。因此可以调节各种细胞过程。在这里,我们回顾了研究文献,这些文献探讨了健康对照动物以及与神经系统疾病和精神疾病相关的临床前模型中环境富集和运动后啮齿动物中microRNA的差异表达。

更新日期:2020-05-13
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