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The cell killing effects and bystander effects of double suicide gene on pulmonary carcinoma cells were explored. Lung adenocarcinoma cells (A549) were transfected with different liters of adenovirus vector and followed with different concentrations of 5-FC after a recombinant adenovirus vector carrying CD/UPRT gene (Ad-CD/UPRT) was constructed. The cell viability was measured by MTT assay 4 days later. The cell viability was dropped to 30.57 %-8.62 % after 10 MOI of Ad-CD/UPRT transfected and 5-FC (10-1000μg/mL) administration. Furthermore, Ad-CD/UPRT-infected A549 cells showed a profound neighbor cell killing effect in the same methods. These results suggested that Ad-CD/UPRT/5-FC system can effectively suppress growth of lung adenocarcinoma cells, which may provide a novel and powerful candidate for lung cancer gene therapy strategies.
The cell killing effects and bystander effects of double suicide gene on pulmonary carcinoma cells were explored. Lung adenocarcinoma cells (A549) were transfected with different liters of adenovirus vector and followed with different concentrations of 5-FC after a recombinant adenovirus vector carrying CD / UPRT The cell viability was dropped to 30.57% -8.62% after 10 MOI of Ad-CD / UPRT transfected and 5-FC (10 -1000 μg / mL) administration. Furthermore, Ad-CD / UPRT-infected A549 cells showed a profound neighbor cell killing effect in the same methods. These results suggest that Ad-CD / UPRT / 5-FC system can strongly suppress growth of lung adenocarcinoma cells, which may provide a novel and powerful candidate for lung cancer gene therapy strategies.