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RNA-seq Used to Explore circRNA Expression and Identify Key circRNAs During the DNA Synthesis Phase of Mice Liver Regeneration.
DNA and Cell Biology ( IF 2.6 ) Pub Date : 2020-11-04 , DOI: 10.1089/dna.2020.5750
Jinfu Zhang 1 , Liangliang Xu 1 , Peng Wang 1 , Xiaobo Zheng 1 , Yitao Hu 1 , Jianchen Luo 1 , Ming Zhang 1 , Mingqing Xu 1
Affiliation  

The liver has an excellent capacity for regeneration when faced with external injury and the damage differs from that of other organs in the body. Our aim was to identify the role of circular RNA (circRNA) during the DNA synthesis phase (36 h) of mice liver regeneration. High-throughput RNA sequencing was conducted to explore circRNA and messenger RNA (mRNA) expression in three pairs of mice liver tissue at 0 and 36 h after 2/3 partial hepatectomy. One hundred differentially expressed circRNAs were detected, including 66 upregulated and 34 downregulated circRNAs. We also explored 2483 differentially expressed mRNAs, including 1422 upregulated and 1061 downregulated mRNAs. Gene ontology and Kyoto Encyclopedia of Genes and Genomes indicated that cell cycle regulation, material metabolism, and multiple classical pathways were involved in the DNA synthesis process. A competing endogenous RNA (ceRNA) network containing 5 circRNAs, 28 target genes, and 533 microRNAs (miRNAs) was constructed, and we selected the top 5 miRNAs to map it. Potential key circRNAs were validated with the quantitative real-time PCR technique and their regeneration curves, including consecutive time points, were produced. Finally, a cell counting kit-8 assay on key circRNAs of ceRNA network was performed to further confirm their roles in the DNA synthesis phase of liver regeneration. This study provides a circRNA expression profile for liver regeneration and contributes valuable information for future research.

中文翻译:

RNA-seq用于在小鼠肝脏再生的DNA合成阶段探索circRNA表达并鉴定关键circRNA。

肝脏在受到外部伤害时具有出色的再生能力,其损伤与体内其他器官的损伤不同。我们的目的是确定环状RNA(circRNA)在小鼠肝脏再生的DNA合成阶段(36小时)中的作用。高通量RNA测序进行了探索2/3部分肝切除后0和36 h在三对小鼠肝脏组织中的circRNA和信使RNA(mRNA)表达。检测到一百个差异表达的circRNA,包括66个上调的和34个下调的circRNA。我们还探索了2483个差异表达的mRNA,包括1422个上调的和1061个下调的mRNA。基因本体论和《京都基因与基因组百科全书》指出,细胞周期调控,物质代谢,DNA合成过程涉及多种经典途径。构建了包含5个circRNA,28个靶基因和533个microRNA(miRNA)的竞争性内源RNA(ceRNA)网络,我们选择了前5个miRNA进行定位。潜在的关键circRNA已通过实时定量PCR技术进行了验证,并产生了包括连续时间点在内的再生曲线。最后,对ceRNA网络的关键circRNA进行了细胞计数kit-8分析,以进一步证实其在肝脏再生的DNA合成阶段中的作用。这项研究提供了用于肝脏再生的circRNA表达谱,并为将来的研究提供了有价值的信息。我们选择了前5个miRNA进行定位。潜在的关键circRNA已通过实时定量PCR技术进行了验证,并产生了包括连续时间点在内的再生曲线。最后,对ceRNA网络的关键circRNA进行了细胞计数kit-8分析,以进一步证实其在肝脏再生的DNA合成阶段中的作用。这项研究提供了用于肝脏再生的circRNA表达谱,并为将来的研究提供了有价值的信息。我们选择了前5个miRNA进行定位。潜在的关键circRNA已通过实时定量PCR技术进行了验证,并产生了包括连续时间点在内的再生曲线。最后,对ceRNA网络的关键circRNA进行了细胞计数kit-8分析,以进一步证实其在肝脏再生的DNA合成阶段中的作用。这项研究提供了用于肝脏再生的circRNA表达谱,并为将来的研究提供了有价值的信息。进行了针对ceRNA网络关键circRNA的细胞计数试剂盒8测定,以进一步证实其在肝脏再生的DNA合成阶段中的作用。这项研究提供了用于肝脏再生的circRNA表达谱,并为将来的研究提供了有价值的信息。进行了针对ceRNA网络关键circRNA的细胞计数试剂盒8测定,以进一步证实其在肝脏再生的DNA合成阶段中的作用。这项研究提供了用于肝脏再生的circRNA表达谱,并为将来的研究提供了有价值的信息。
更新日期:2020-11-06
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