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Study on the relationship among the NF-κB activation,uPA expression and apoptosis induced by 5-Fu in HCT116 human carcinoma cell line
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- Author:
- No author available
- Journal Title:
- CANCER RESEARCH AND CLINIC
- Issue:
- 10
- DOI:
- 10.3760/cma.j.issn.1006-9801.2007.10.004
- Key Word:
- 结肠肿瘤;5-氟尿嘧啶;细胞凋亡;HCT116细胞;核转录因子-κB;uPA;PDTC
Abstract： 目的 研究5-氟尿嘧啶(5-Fu)诱导人结肠癌细胞(HCT116)凋亡与核转录因子-κ B(NF-κ B)活化以及尿激酶型纤溶酶原激活物(uPA)表达的关系,并观察吡咯烷二硫氨基甲酸盐(PDTC)抑制NF-κ B活化对5-Fu诱导结肠癌细胞凋亡及uPA表达的影响.方法 采用流式细胞仪Annexin V-FITC法检测结肠癌细胞HCT116凋亡;采用免疫组织化学方法半定量分析HCT116细胞NF-κB及uPA表达的动态变化.结果 5-Fu在诱导HCT116细胞凋亡的同时有NF-кB活化,1μmol/L PDTC能显著增加5-Fu诱导HCT116细胞凋亡及抑制5-Fu诱导的HCT116细胞NF-κB活化作用(P＜0.05),uPA变化与NF-κB一致.结论 5-Fu在诱导HCT116细胞凋亡的同时活化了NF-κ B,uPA表达亦随之增强;PDTC在抑制5-Fu诱导的HCT16细胞NF-κB活化的同时增强了5-Fu诱导细胞凋亡的作用,uPA表达也相应下降.
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