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- W3217239422 abstract "Objective: To investigate the effects and mechanisms of miR-155-3p on the malignant behavior of human NK/T cell lymphoma cell line HANK1. Methods: Targetscan database was used to predict the target gene of miR-155-3p. HANK1 cells in logarithmic growth period were cultured, and the cells were divided into blank group, over-expressed group, control group and interference group, which were transfected with pENTER-puro vector, pENTER-miR-155-3p vector, GV248 control vector and GV248-miR-155-3p siRNA interference vector, respectively. Meanwhile, actinomycin D (ActD) was used to treat each group of cells, and the expressions of miR-155-3p, EAf1, β-catenin and c-Myc in each group were detected by real-time fluorescence quantitative PCR (n=5). The degradation rate of EAF1 mRNA, the expressions of EAF1, β-catenin and c-Myc protein were detected by Western blot (n=3), and the malignant proliferation abilities of cells were detected by CCK-8 (n=5). Results: Compared with the blank group, the expression levels of miR-155-3p, β-catenin and c-Myc in the over-expressed group were significantly higher, the expression level of EAF1 was lower, the half-life of EAF1 mRNA was shortened, and the malignant proliferation ability of the cells was strengthened (P＜0.05). Compared with the control group, the expression levels of miR-155-3p, β-catenin and c-Myc in the interference group were significantly lower, and the expression level of EAF1 was increased, the half-life of mRNA was prolonged and the ability of cell proliferation was decreased (P＜0.05). Conclusion: miR-155-3p can promote EAF1 mRNA degradation and proliferation in HANK1 cells.目的:探究miR-155-3p对人NK/T细胞淋巴瘤细胞HANK1恶性行为的影响及潜在机制。方法:Targetscan数据库预测miR-155-3p的靶基因,培养对数生长期HANK1细胞,将细胞分为空白组、过表达组、对照组及干扰组,利用细胞转染技术依次转入pENTER-puro空白载体、pENTER-miR-155-3p过表达载体、GV248对照载体、GV248-miR-155-3p siRNA干扰载体。同时放线菌素D(ActD)处理各组细胞,实时荧光定量PCR技术检测各组细胞miR-155-3p、EAF1、β-catenin及c-Myc的表达水平,并分析各组细胞ActD处理后EAF1 mRNA降解速率(n=5),Western blot检测细胞EAF1、β-catenin及c-Myc蛋白表达情况(n=3),CCK-8检测细胞恶性增殖能力变化(n=5)。结果:与空白组相比,过表达组细胞miR-155-3p、β-catenin及c-Myc表达水平显著增高,EAF1表达水平降低且EAF1 mRNA半衰期缩短,细胞恶性增殖能力增强(P均＜0.05);与对照组相比,干扰组细胞miR-155-3p、β-catenin及c-Myc表达水平显著降低,EAF1表达水平升高且EAF1 mRNA半衰期延长,细胞恶性增殖能力降低(P均＜ 0.05)。结论:miR-155-3p可促进EAF1 mRNA降解及HANK1细胞恶性增殖能力。." @default.
- W3217239422 created "2021-12-06" @default.
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- W3217239422 date "2021-11-01" @default.
- W3217239422 modified "2023-09-26" @default.
- W3217239422 title "[Effects of miR-155-3p on the degradation rate of EAF1 mRNA and malignant proliferation in HANK1 cells]." @default.
- W3217239422 doi "https://doi.org/10.12047/j.cjap.6159.2021.095" @default.
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