Effect of isoflurane on expression of matrix metalloproteinase 2 in human tongue cancer cell

Objective To evaluate the effect of isoflurane on the expression of matrix metalloproteinase 2 (MMP-2) in human tongue cancer cell.Methods Tea8113 cells at the logarithmic growth phase were seeded into 96-well plates (200 μl/hole) with the density of 5 × 103/ml,6-well plates (5 ml/hole) with the density of 1 ×105/ml,culture dishes (5 ml/dish) with the density of 5 × 105/ml or Transwell chamber (200 μl cell suspension for upper chamber with a density of 5 × 105/ml,10 ％ blood serum medium 500 μl for lower chamber).The cells wererandomly divided into 3 group (n =30 each):control group (group C),2％ isoflurane 2 h group (group Ⅰ1) and 2％ isoflurane 4 h group (group Ⅰ2).2％ isoflurane was added to the culture medium and the cells were incubated for 2 and 4 h in groups Ⅰ1 and Ⅰ2,respectively.The cell viability was detected by MTT assay.The cell apoptosis was assessed by flow cytometry.The migration and invasion of the cells were measured by cell wound scratch assay and Transwell chamber assay,respectively.The expression of MMP-2 and MMP-2 mRNA was detected by immunocytochemistry and RT-PCR,respectively.Results The cell viability and migration of cells were significantly increased,the apoptotic rate was decreased,and the expression of MMP-2 and MMP-2 mRNA was up-regulated in groups Ⅰ1 and Ⅰ2,and the invasion of the cells were increased in group Ⅰ2 as compared with group C (P ＜ 0.05).Compared with group Ⅰ1,the cell viability and migration and invasion of the cells were significantly increased,the apoptotic rate was decreased,and the expression of MMP-2 and MMP-2 mRNA was up-regulated in group Ⅰ2 (P ＜0.05).Conclusion Isoflurane enhances the migration and invasion of the cancer cells by up-regulating the expression of MMP-2 in human tongue cancer Tea8113 cells. Key words: Isoflurane;  Tongue neoplasms;  Cell line, tumor;  Matrix metalloproteinase 2