Journal of Oral Science Research ›› 2017, Vol. 33 ›› Issue (12): 1278-1281.DOI: 10.13701/j.cnki.kqyxyj.2017.12.010

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Effect of YAP1 Small Interfering RNA on Biological Characteristics of Tongue Squamous Cell.

WU Chang-jing1, WANG Wei-Lu2, ZHEN En-ming1, SHAO Jun1*.   

  1. 1. Department of Stomatology, Guangzhou Hospital of Integrated Traditional and West Medicine, Guangzhou 510800, China;
    2. Maternal and Child Health Hospital of Huadu District of Guangzhou, Guangzhou 510800, China.
  • Received:2017-05-11 Online:2017-12-20 Published:2018-01-03

Abstract: Objective: To investigate the effect of YAP1 small interfering RNA (siRNA) on the biological characteristics of tongue squamous cell. Methods: Human tongue cancer SCC-4 cells were cultured. According to the different transfectants, the cells were divided into siRNA-YAP1 group, siRNA-control sequence group, and blank control group. The expression of YAP1 gene in each group was detected by using real-time fluorescence quantitative PCR. The expression of YAP1 protein in each group was detected by Western blot. The cell proliferation was detected by MTT assay. The cell apoptosis in each group was detected by flow cytometry. The cell migration ability was detected by scanning experiment. The cell invasion ability in each group was detected by Transwell method. Results: Compared with the siRNA-control sequence group and the blank control group, the relative expression levels of YAP1 mRNA and protein in siRNA-YAP1 group decreased (P<0.05). Compared with the siRNA-control group and the blank control group, the absorbance A values at 24h, 48h, 72h, and 96h in the siRNA-YAP1 group were decreased (P<0.05). Compared with the siRNA-control sequence group and the blank control group, the apoptosis rate in the siRNA-YAP1 group was increased (P<0.05). Compared with the siRNA-control sequence group and the blank control group, the number of invasive cells in the siRNA-YAP1 group was decreased (P<0.05). Conclusion: Specific silencing of YAP1 gene in human tongue cancer SCC-4 cells could inhibitell proliferation, accelerate cell apoptosis, and reduce cell migration and invasion.

Key words: Tongue squamous cell carcinoma, YAP1, Small interfering RNA, Biological characteristics

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