目的:探讨SNAP是否可以降低宫颈癌HeLa细胞对放射的敏感性,为其在临床上用作放疗增敏剂提供理论依据。方法:通过流式细胞术(Flow Cytometry,FCM)检测接受6GyX射线照射的SNAP处理HeLa细胞中Survivin的表达水平。结果:HeLa细胞接受6GyX射线照射后,12h之后其Survivin的表达量开始显著提高(P<0.05)。SNAP处理的HeLa细胞接受6GyX射线照射后,12h时细胞凋亡率为7.01%(P<0.05),24h时细胞凋亡率为11.93%(P<0.01)。结论:SNAP可以显著降低宫颈癌HeLa细胞中Survivin的表达水平,从而显著提高HeLa细胞对X射线的敏感性,增强其细胞凋亡率。 Objective: To investigate whether SNAP can reduce the sensitivity of cervical cancer HeLa cells to radiotherapy and provide a theoretical basis for its use as a radiosensitizer in clinic. Methods: Survivin expression in HeLa cells treated with 6 Gy X-ray irradiation was detected by flow cytometry (FCM). Results: The expression of Survivin in HeLa cells began to increase significantly (P <0.05) 12 h after irradiation with 6 Gy X-rays. After irradiated by 6 Gy X-ray, the apoptosis rate of SNAP-treated HeLa cells was 7.01% (P <0.05) at 12h and 11.93% (P <0.01) at 24h. Conclusion: SNAP can significantly reduce the expression of Survivin in cervical cancer HeLa cells, which can significantly improve the sensitivity of HeLa cells to X-rays and increase the apoptosis rate of HeLa cells.