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APP/PS1转基因小鼠脑组织环状RNA的差异表达谱及相关ceRNA构建
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作者 马琳秋 侯明亮 +5 位作者 李金平 杨红岩 廖旗荣 李小雄 洪文娟 周华东 《蚌埠医学院学报》 CAS 2024年第1期1-6,共6页
目的:探讨阿尔茨海默病(AD)模型小鼠脑组织中环状RNA(circRNA)的差异表达谱,构建circRNA-miRNA-mRNA调控网络,明确circRNA在AD发生中的调控机制。方法:采用基因芯片技术检测APP/PS1转基因AD模型小鼠大脑中circRNA的差异表达,对差异circ... 目的:探讨阿尔茨海默病(AD)模型小鼠脑组织中环状RNA(circRNA)的差异表达谱,构建circRNA-miRNA-mRNA调控网络,明确circRNA在AD发生中的调控机制。方法:采用基因芯片技术检测APP/PS1转基因AD模型小鼠大脑中circRNA的差异表达,对差异circRNA进行基因本体论(GO)和京都基因与基因组百科全书(KEGG)通路分析,采用实时定量聚合酶链反应验证随机选取的5个差异表达的circRNA,构建circRNA-miRNA-mRNA,进行AD靶基因功能预测分析。结果:共筛选出52个差异表达的circRNA,其中28个上调,24个下调。GO和KEGG的富集分析结果显示,差异表达的circRNA的亲本基因主要参与神经系统发育、蛋白质结合、RNA运输、调控干细胞多能性的信号通路和Hippo信号通路。生物学信息分析成功构建circRNA-miRNA-mRNA的竞争性内源(ceRNA)网络,显示这些靶基因富集的功能可能通过小分子结合、浆膜、cAMP信号通路和Rap1信号通路发挥作用。结论:AD模型小鼠大脑中存在多种差异表达的circRNA,这些差异基因可能通过circRNA-miRNA-mRNA调节网络参与AD发生的分子调控。 展开更多
关键词 阿尔茨海默病 环状RNA 微小RNA circRNA-miRNA-mRNA调节网络
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Identification of the Potential Function of circRNA in Hypertrophic Cardiomyopathy Based on Mutual RNA-RNA and RNA-RBP Relationships Shown by Microarray Data 被引量:1
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作者 Guang-Bin Wang Ni-Ni Rao +1 位作者 Chang-Long Dong Xiao-Qin Lyu 《Journal of Electronic Science and Technology》 CAS CSCD 2021年第1期41-52,共12页
The pathogenesis of hypertrophic cardiomyopathy(HCM)is very complicated,particularly regarding the role of circular RNA(circRNA).This research pays special attention to the relationships of the circRNA-mediated networ... The pathogenesis of hypertrophic cardiomyopathy(HCM)is very complicated,particularly regarding the role of circular RNA(circRNA).This research pays special attention to the relationships of the circRNA-mediated network,including RNA-RNA relationships and RNA-RNA binding protein(RNA-RBP)relationships.We use the parameter framework technology proposed in this paper to screen differentially expressed circRNA,messenger RNA(mRNA),and microRNA(miRNA)from the expression profile of samples related to HCM.And 31 pairs of circRNA and mRNA relationship pairs were extracted,combined with the miRNA targeting database;145 miRNA-mRNA relationship pairs were extracted;268 circRNA-mRNA-miRNA triads were established through the common mRNA in the 2 types of relationship pairs.Thus,268 circRNA-miRNA regulatory relationships were deduced and 30 circRNARBP relationship pairs were analyzed at the protein level.On this basis,a circRNA-mediated regulatory network corresponding to the two levels of RNA-RNA and RNA-RBP was established.And then the roles of circRNA in HCM were analyzed through circRNA-mRNA,circRNA-miRNA,and circRNA-RBP,and the possible role in disease development mas inferred. 展开更多
关键词 circular RNA(circRNA) circular RNA-messanger rna-microrna(circrna-mrna-mirna) coexpression network functions analysis hypertrophic cardiomyopathy regulatory network RNA-binding protein(RNARBP).
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