Carcinogenesis, Teratogenesis & Mutagenesis ›› 2018, Vol. 30 ›› Issue (4): 279-285.doi: 10.3969/j.issn.1004-616x.2018.04.007

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Effects of ethaselen, a novel organoselenium compound, on proliferation and migration of human tongue squamous carcinoma cells

XING Long1,2, LI Yang3,4, MA Xiaolong3,4, MOHAMMED H3,4, HUANG Ying3,4, XIE Fuqiang4, FENG Zhenghu1,2   

  1. 1. Key Lab of Stomatology of State Ethnic Affairs Commission, Northwest Minzu University, Lanzhou 730030;
    2. Key Lab of Oral Diseases of Gansu Province, Northwest Minzu University, Lanzhou 730030;
    3. School of Stomatology Lanzhou University, Lanzhou 730000;
    4. The Second Hospital of Lanzhou University, Lanzhou 730030, Gansu, China
  • Received:2018-03-15 Revised:2018-06-26 Online:2018-07-30 Published:2018-07-30

Abstract: OBJECTIVE: To investigate the effect of a new type of organic selenium compound ethaselen (BBSKE) on growth and proliferation of a human tongue cancer CAL27 cell line. METHODS: In vitro cell assay MTT,Hoechst 33258 immunofluorescence staining,annexin V-FITC/PI staining flow cytometry,transwell chamber assay were performed to determine effects of 2,5,10,20 μmol/L (containing 1‰ DMSO) of BBSKE on CAL27 proliferation,and cell cycle and migration compared with solvent control and normal control groups. RESULTS: CAL27 cells treated with 5,10,and 20 μmol/L BBSKE had significantly reduced proliferation compared with untreated cultures (P < 0.01),and with further reduction in time. With the Hoechst 33258 immunofluorescence staining,the morphology of cells in the 5 and 10 μmol/L BBSKE groups was changed compared to the control group. Annexin V-FITC/PI staining flow cytometry results showed that the G2/M phase ratios in the 2,5,10,and 20 μmol/L BBSKE group were increased compared to the control group (P < 0.01),with blockage in the G2/M phase (P < 0.01). Results from the transwell chamber assay showed that the number of CAL27 cells exhibiting migration in the 2,5,10,and 20 μmol/L BBSKE groups were significantly lower than that in the control group (P < 0.01). The number of migrating cells in the 20 μmol/L BBSKE group was the least. In addition,the migration number and the concentration of drug were inversely proportional. CONCLUSION: BBSKE demonstrated significant inhibitory effect on CAL27 cells,induced cell apoptosis by arresting the cell cycle in the G2/M phase and inhibited cell migration. These observations suggest that BBSKE can be used as an alternative drug for chemotherapy in patients with TSCC.

Key words: ethaselen, thioredoxin, CAL27 cells, cell proliferation, cell cycle, apoptosis, cell migration

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