Effect of Rev1 siRNA on the sensitivity of human colon cancer cells to X-ray radiation
10.3760/cma.j.issn.0254-5098.2018.10.001
- VernacularTitle:沉默Rev1基因对人结肠癌细胞放射敏感性的影响
- Author:
Feifei KONG
1
;
Yuanjie LI
;
Lu MA
;
Yu SUI
;
Hong ZHE
;
Fang XU
Author Information
1. 宁夏医科大学生育力保持教育部重点实验室
- Keywords:
Colon cancer cells;
Rev1;
X-rays;
Radiosensitivity
- From:
Chinese Journal of Radiological Medicine and Protection
2018;38(10):721-727
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the effect of silencing Rev1 gene on the proliferation and apoptosis induction of human colon cancer cell line THC8307 after X-ray irradiation.Methods Rev1 siRNA was transferred into THC8307 cells and its transferring efficiency was tested by RT-PCR and Western blot assay.The cells were divided into blank control group,negative control group and radiation group.After 6 Gy irradiation,cell proliferation were detected by MTI assay,cell apoptosis were detected by flow cytometry (FCM),and the expressions of PCNA,γ-H2AX,P53,Bax,and Bcl-2 proteins in each group were detected by Western blot.Results Compared with the blank control group,after 6 Gy irradiation,the proliferation rate of the silenced Rev1 was reduced (t =7.53,P ＜ 0.05) and apoptosis rate was increased (t =6.23,P ＜ 0.05).The expression of PCNA and Bcl-2 decreased (t =4.39,6.13 P ＜0.05),and the expressions of γ-H2AX,P53 and Bax increased (t =5.48,5.09,3.32,P ＜ 0.05).Conclusions Silencing Rev1 gene inhibits the proliferation of colon cancer cells,promotes apoptosis,and increases cell radiosensitivity to X-rays.
