摘要
目的研究维甲类化合物Ro40 875 7对人胰腺癌JF 30 5细胞株的抗增殖作用及其作用机制。方法采用四甲基氮唑蓝实验、流式细胞技术、Westernblot蛋白检测技术分别检测Ro40 875 7对人胰腺癌JF 30 5细胞株的增殖、细胞周期和p2 7蛋白表达的影响。结果Ro40 875 7可明显抑制JF 30 5细胞株的生长 ,并呈剂量、时间依赖性作用。用 10 - 5mol LRo40 875 7处理细胞 72h ,G1 期细胞由 5 6 %增加至 76 % ,S期细胞由 2 5 %减少至 7% ,细胞周期阻滞于G1 期 ;用 10 - 5mol LRo40 875 7处理12h ,JF 30 5细胞p2 7蛋白表达增加至对照组的 2 2倍、2 4h为 1 9倍 ,48h为 1 2倍、72h为 0 7倍。结论Ro40 875 7对人胰腺癌JF 30 5细胞株具有明显的生长抑制作用 ,并可以导致其G1 期细胞周期阻滞和上调p2 7蛋白表达。上调p2
ObjectiveTo study the anti-proliferative effect and the mechanism of arotinoid Ro40-8757 on human pancreatic carcinoma cell line JF-305.MethodsMTT assay was used to evaluate the growth inhibition effect of Ro40-8757 on human pancreatic carcinoma cell line JF-305. The expression of p27 protein was measured by Western blotting, and flow cytometry for cell cycle analysis.ResultsRo40-8757 significantly inhibited the growth of JF-305 cells with a dose-, time-dependent manner. After 72 hours treatment with 10 -5mol/L Ro40-8757, the proportion of cells in G 1 phase increased from 56% to 76% while the cells in S phase decreased from 25% to 7%. Western blot analysis showed that the expression of p27 protein in cells treated with Ro40-8757 increased markedly.Conclusion Ro40-8757 inhibits the growth of pancreatic carcinoma cell line JF-305 possibly by up-regulating p27 protein expression and arresting cell cycle.
出处
《中华普通外科杂志》
CSCD
北大核心
2002年第3期165-167,共3页
Chinese Journal of General Surgery
基金
辽宁省科委基金资助 (编号 :96 80 2 0 0 7)
