Influence of irreversible electroporation mediated HPV16 E6 shRNA interference plasmid in proliferation of cervical cancer SiHa cells
10.13481/j.1671-587x.20150602
- VernacularTitle:不可逆性电穿孔介导 HPV16 E6 shRNA 干扰质粒对宫颈癌 SiHa 细胞增殖的影响
- Author:
Zhiliang WANG
;
Tenghua YU
;
Qin QIN
;
Yutong WU
;
Wenqian ZHANG
;
Yuanyuan HUA
;
Zhengai XIONG
;
Wei ZHOU
- Publication Type:Journal Article
- Keywords:
electroporation;
interference plasmid;
uterine cervical neoplasms;
cell proliferation
- From:
Journal of Jilin University(Medicine Edition)
2015;(6):1107-1112
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the feasibility of using irreversible electroporation (IRE)mediating HPV16 E6 shRNA into cervical cancer cell line SiHa,and to clarify the influence of their co-effect on the proliferation of SiHa cells and its mechanism.Methods A HPV16 E6 gene specific interference sequence was inserted in pGenesil-1 to build a interference vector.10 pulses of IRE with 800 V,100 μs,and 1 Hz were applied to the suspension of SiHa cells and vectors.According to the treatment factors,control group,IRE group,pGenesil-N group,pGenesil-N+IRE group,pGenesil-E6 group and pGenesil-E6 + IRE group were set up.The expression of green fluorescent protein (GFP)and transfection efficiency were confirmed by inverted fluorescence microscope 24 h after the vector was transfected by IRE,and the expression efficancy of GFP was calculated.The expression levels of E6 mRNA and protein were detected by RT-PCR and Western blotting method which was also applied to detect the expressions of P53 and PCNA.The proliferative activity of SiHa cells was determined by CCK-8 assay.Results Enzyme digestion and DNA sequencing verified that the vectors were correctly constructed.GFP was seen under inverted fluorescence microscope 24 h after IRE transfection.Compared with IRE group,the expression levels of E6 mRNA and protein were decreased detected by RT-PCR and Western blotting method after the vectors were treated with IRE,the P53 protein expression level was increased (P < 0.05),and the PCNA expression level was decreased (P <0.05).The CCK-8 assay results showed the proliferative activity of SiHa cells in pGenesil-E6+IRE group was decreased more obviously than that in pGenesil E6 group (P <0.05).Conclusion IRE can play the role of gene transfection of mediating HPV16 E6 shRNA into SiHa cells, and their co-effect can significantly inhibit the proliferation of SiHa cells.
