Cui QY, Qin WM, Zhang BY, Liu SH, Sun CD.
In vitro antitumor effect of an adenoviral vector expressing IL-12 in HepG2 cells.
Shijie Huaren Xiaohua Zazhi 2013;
21:3190-3197. [DOI:
10.11569/wcjd.v21.i30.3190]
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Abstract
AIM: To explore whether an adenoviral vector expressing the interleukin-12 (IL-12) gene (AdvIL-12) can induce a strong anti-hepatic carcinoma effect in vitro.
METHODS: HepG2 cells transfected with AdvIL-12 were cultured as the experimental group, and cells transfected with Adv-GFP or non-transfected cells were used as controls. The scratch test was used to detect the migration of AdvIL-12-infected HepG2 cells. The crystal violet staining assay was used to examine the survival of HepG2 cells. MTT assay was used to assess the proliferation of HepG2 cells. TUNEL assay was used to detect the apoptosis of HepG2 cells.
RESULTS: AdvIL-12-infection inhibited the migration of HepG2 cells in a dose-dependent manner. In the experimental group, the dye depth of crystal violet staining deepened with the decrease in the concentration of AdvIL-12. The killing effect of 10 μL of AdvIL-12 had the most obvious killing effect on HepG2 cells. The absorbance values differed significantly between the AdvIL-12 group, Adv-GFP group and non-transfected HepG2 group (F1 = 95.7, F2 = 103.6, F3 = 165.8, P < 0.01) after culture for 24, 48 or 72 h. Under an optical microscope, typical apoptotic cells were visible. The number of apoptotic cells in the experimental group was significantly more than those in the two control groups.
CONCLUSION: AdvIL-12 infection can effectively inhibit the ability of HepG2 cells to grow, proliferate and migrate and promote the apoptosis of HepG2 cells.
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