Expression change and role of Kruppel-like factor 4 mRNA, microRNA-881-3p, circular RNA_20298 and circular RNA_14826 in the hepatocyte apoptosis during the rat liver regeneration&nbsp;

LIN Kai-Lin; YANG Xian-Guang; WANG Zi-Hui; ZANG Xia-Yan; XUE Qi-Jie; HAN Lu; ZHANG Chun-Bo; ZHAO Zhi-Hu; XU Cun-Shuan

doi:10.16098/j.issn.0529-1356.2023.04.007

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Acta Anatomica Sinica ›› 2023, Vol. 54 ›› Issue (4) : 420-424. DOI: 10.16098/j.issn.0529-1356.2023.04.007

Expression change and role of Kruppel-like factor 4 mRNA, microRNA-881-3p, circular RNA_20298 and circular RNA_14826 in the hepatocyte apoptosis during the rat liver regeneration

LIN Kai-lin^1,2 YANG Xian-guang^1,2 WANG Zi-hui^1,2 ZANG Xia-yan^1,2 XUE Qi-jie^1,2 HAN Lu^1,2 ZHANG Chun-bo^1,2 ZHAO Zhi-hu^3* XU Cun-shuan^1,2*

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Abstract

Objective To explore the role pathway and pattern of the Kruppel-like factor 4 (KLF4) and its mRNA interaction with microRNA(miRNAs) and circular RNA(circRNAs) at 0 hour and the 120 th hour in the rat liver regeneration. Methods The rat 2/3 hepatectomy (partial hepatectomy, PH) model was prepared as described by Higgins, the hepatocytes were isolated according to the method of Smedsrod et al, the expression changes of mRNA, miRNA and circRNA together named as competing endogenous RNA (ceRNA) were detected by the large-scale quantitative detection technology, the interaction network of ceRNA was constructed by Cytoscape 3.2 software, and their correlation in expression and role were analyzed by ceRNA comprehensive analysis. Results It was found that at the 0 hour and the 120th hour PH, the ratio value of KLF4 mRNA showed 1.00±0.16 and 3.14±0.27, miR-881-3p displays 18.30±1.44 and 0.47±0.02, circRNA_20298 indicated 0.32±0.10 and 4.24±0.22, circRNA_14826 showed 0.42±0.13 and 0.61±0.08. At the same time, the four kinds of cell apoptosis-related genes adrenoceptor beta 2 (ADRB2), dimethylarginine dimethylaminohydrolase 2 (DDAH2), annexin A5 (ANXA5), ect, which were promoted in expression by KLF4, were down-regulated at 0 hour after PH, but the cell apoptosis-related genes synuclein gamma (SNCG), glutathione-disulfide reductase (GSR), FYVE, RhoGEF and PH domain containing 4 (FGD4), ect, which were inhibited in expression by KLF4, were upregulated at 0 hour after PH. On the other hand, the cell apoptosis-related genes ANXA5 and thymosin beta 10 (TMSB10), which are promoted in expression by KLF4, were up-regulated at the 120th hour after PH, but the cell apoptosis-related genes chloride intracellular channel 4 (CLIC4) and ataxin 3 (ATXN3), ect, which were inhibited in expression by KLF4, were down-regulated at the 120th hour after PH. Conclusion The correlation in expression and role of the miRNAs, which are inhibited by circRNAs, KLF4, its mRNA is inhibited by miRNAs, and the cell apoptosis-related genes, which are regulated by KLF4, are helpful for the hepatocyte to be in active state 0 hour after PH and to be in apoptotic state 120-hour after PH.

Key words

Liver regeneration / Kruppel like factor 4 / Biological high-throughput detection / Competing endogenous RNA comprehensive analysis / Rat

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LIN Kai-lin YANG Xian-guang WANG Zi-hui ZANG Xia-yan XUE Qi-jie HAN Lu ZHANG Chun-bo ZHAO Zhi-hu XU Cun-shuan. Expression change and role of Kruppel-like factor 4 mRNA, microRNA-881-3p, circular RNA_20298 and circular RNA_14826 in the hepatocyte apoptosis during the rat liver regeneration [J]. Acta Anatomica Sinica. 2023, 54(4): 420-424 https://doi.org/10.16098/j.issn.0529-1356.2023.04.007

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