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find Keyword "SBE13" 1 results
  • Expression and Significance of PLK1 and STK15 Gene, and Effect of Its Specific Inhibitor on Proliferation in Colon Cancer Cells

    ObjectiveTo explore the expressions of polo-like kinase 1(PLK1) and serine/threonine kinase 15 (STK15) mRNA and protein in colon cancer cells, and to explore the inhibitive effect of SBE13 and VX-680 for PLK1 protein and STK15 protein. MethodsOne kind of cervical cancer cells(Hela cells) and 3 kinds of colon cancer cells (HCT-116 cells, HT-29 cells, and CACO-2 cells) were selected for experiment. Expression levels of PLK1 mRNA, STK15 mRNA and its protein of 4 kinds of cells were detected by reverse transcription polymerase chain reaction(RT-PCR) and Western blot method respectively. Inhibitive effect of SBE13 and VX-680 were evaluated in vitro by methylthiazolyldiphenyl-tetrazolium bromide(MTT) assay in 4 kinds of cells, which divided into 5 groups, receiving Dulbecco's modification of Eagle's medium(DMEM), dimethylsulfoxide(DMSO), SBE13, VX-680, and SBE13+VX-680 respectively. ResultsCompared with Hela cells, expression levels of PLK1 mRNA, STK15 mRNA and its protein in HCT-116 cells,HT-29 cells, and CACO-2 cells were higher(P<0.05). ① Hela cells:Compared with DMEM group, the proliferative activity were not inhibited in SBE13 group, VX-680 group, and SBE13+VX-680 group(P>0.05). ② HCT-116 cells and HT-29 cells:Compared with DMEM group, the proliferative activity were inhibited in VX-680 group and SBE13+VX-680 group(P<0.05), but was not inhibited in SBE13 group(P>0.05). ③ CACO-2 cell:Compared with DMEM group, the proliferative activity were inhibited in SBE13 group, VX-680 group, and SBE13+VX-680 group(P<0.05). ConclusionsExpression levels of PLK1 mRNA, STK15 mRNA and its protein increase in HCT-116, HT-29, and CACO-2 cells compared with Hela cells. SBE13 and VX-680 can inhibit PLK1 and STK15 protein partly in colon cancer cell lines.

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