Abstract
To investigate the impact of miRNA-206 on the transcriptional expression of EVI1 gene and activation of Akt/JNK signaling pathway in gastric cancer cells, and to provide a new idea for gene-targeted therapy of gastric cancer. The miRNA-206 transfection experiment was firstly used to verify the regulation of EVI1. The experiment was divided into three groups: miRNA-206 mimics (100 nM), miRNA-206 inhibitor (100 nM), miR-NC (100 nM), and transfected into gastric cancer cells sgc7901, Western blot. EVI1 protein expression was detected; then the signal transduction and biological behavior of the cells were verified by miRNA-206 lentiviral vector transfection experiments. The experiment was divided into three groups: pLB-miRNA-206 group, empty vector group and control group (sgc7901 cell group). miRNA-206 and EVI1 mRNA levels were detected by real-time fluorescence quantitative (RT-PCR), and p-Akt and p-JNK were detected by Western blot. Protein expression, cell proliferation was quantified by MTT assay, and the alteration of cell cycle were detected by flow cytometry. miRNA-206 may affect the cell proliferation and division cycle by targeting the regulation of EVI1 transcriptional gene expression and activation of Akt/JNK signaling pathway in gastric cancer cells, and it is expected to provide an important selection site for gene-targeted therapy of gastric cancer.
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