Inhibitory effect of antisense RNA of ornithine decarboxylase gene on human esophageal squamous carcinoma cell line Eca109

To investigate the in vitro inhibitory effect of rAd-ODC/Ex3as on human esophageal carcinoma cells. The infection rate of rAd-ODC/Ex3as was measured with the aid of GFP expression. Western Blot technique was used to observe the inhibition of ODC expression in infected tumor cells. The malignant phenotype of Eca109 cell line was assessed by growth curve. TUNEL was used to analyze cell apoptosis. Approximate 65% of Eca109 cell line were infected with rAd-ODC/Ex3as when MOI reached 50. The expression of ODC was inhibited in the infected tumor cells. rAdODC/Ex3as could inhibit Eca109 cell line growth and invasive ability at 20 of MOI. TUNEL proved that rAdODC/Ex3as can lead to cell apoptosis. rAd-ODC/Ex3as could inhibit effectively the expression of ODC gene and the growth of of esophageal squamous carcinoma cell line Eca109 in vitro, and induce apoptosis. It may be one of the promising medicines for antisense gene therapy in esophageal cancer.