Wang Linlin, Zeng Li, Jiang Hailun, Li Zhuorong, Liu Rui
Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
Life (Basel). 2020 May 14;10(5):64. doi: 10.3390/life10050064.
Alzheimer's disease (AD) is a progressive neurodegenerative disease characterized by a deficiency in cognitive skills. Although long noncoding RNAs (lncRNAs) have been proposed as associated with AD, the aberrant lncRNAs expression and the co-expression of lncRNAs-mRNAs network in AD remains unclear. Therefore, in this study, lncRNA microarray was performed on the brain of APP/PS1 mice at different age, widely used as an AD mouse model, and on age-matched wide-type controls. Our results identified a total of 3306 lncRNAs and 2458 mRNAs as aberrantly expressed among AD mice at different age and their age-matched control. Gene Ontology and pathway analysis of the AD-related lncRNAs and mRNAs indicated that neuroinflammation-related and synaptic transmission signaling pathways represented the main enriched pathways. An lncRNA-mRNA-miRNA network between the differentially expressed transcripts was constructed. Moreover, an mRNA-miRNA network between both significantly dysregulated and highly conserved genes was also constructed, and among this network, the IGF1, P2RX7, TSPO, SERPINE1, EGFR, HMOX1, and NFE212 genes were predicted to play a role in the development of AD. In conclusion, this study illustrated the prognostic value of lncRNAs and mRNAs associated to AD pathology by microarray analysis and might provide potential novel biomarkers in the diagnosis and treatment of AD.
阿尔茨海默病(AD)是一种以认知技能缺陷为特征的进行性神经退行性疾病。尽管长链非编码RNA(lncRNAs)已被提出与AD相关,但AD中lncRNAs的异常表达以及lncRNAs - mRNAs网络的共表达仍不清楚。因此,在本研究中,对广泛用作AD小鼠模型的不同年龄的APP/PS1小鼠的大脑以及年龄匹配的野生型对照进行了lncRNA微阵列分析。我们的结果在不同年龄的AD小鼠及其年龄匹配的对照中总共鉴定出3306个lncRNAs和2458个mRNA为异常表达。对与AD相关的lncRNAs和mRNAs进行基因本体论和通路分析表明,神经炎症相关和突触传递信号通路是主要的富集通路。构建了差异表达转录本之间的lncRNA - mRNA - miRNA网络。此外,还构建了显著失调和高度保守基因之间的mRNA - miRNA网络,在这个网络中,IGF1、P2RX7、TSPO、SERPINE1、EGFR、HMOX1和NFE212基因被预测在AD的发展中起作用。总之,本研究通过微阵列分析阐明了与AD病理相关的lncRNAs和mRNAs的预后价值,并可能为AD的诊断和治疗提供潜在的新型生物标志物。