基础医学与临床 ›› 2011, Vol. 31 ›› Issue (7): 799-803.

• 研究论文 • 上一篇    下一篇

丙戊酸钠对Kasumi-1细胞裸鼠移植瘤细胞周期的影响

田霞1,刘鹏1,2,王丽红3,张志华1,2,赵蕾1,2,郝长来1   

  1. 1. 承德医学院附属医院血液病科
    2.
    3. 承德医学院附属医院血液科实验室
  • 收稿日期:2010-12-20 修回日期:2011-04-18 出版日期:2011-07-05 发布日期:2011-07-05
  • 通讯作者: 郝长来 E-mail:haochanglai@yahoo.com.cn
  • 基金资助:
    河北省自然科学基金项目

Inhibitory effect of Valproic Acid on cell cycle of Kasumi-1 cell line in nude mice

Xia TIAN1,Peng LIU2,2,Li-hong WANG2,Zhi-hua ZHANG2,Lei ZHAO2,2,Chang-lai HAO1   

  • Received:2010-12-20 Revised:2011-04-18 Online:2011-07-05 Published:2011-07-05
  • Contact: Chang-lai HAO E-mail:haochanglai@yahoo.com.cn

摘要: 目的 观察丙戊酸钠(VPA)对急性髓性白血病(AML)Kasumi-1细胞裸鼠移植瘤组织细胞周期的影响。方法 建立Kasumi-1细胞裸鼠移植瘤模型,分为对照组和VPA治疗组,观察裸鼠移植瘤的生长情况,计算肿瘤体积和肿瘤生长抑制率。用流式细胞仪检测细胞周期,用免疫组化及Western blot检测P21WAF1/CIP和RB蛋白磷酸化(pRB)水平。结果 1.VPA体内用药明显抑制裸鼠Kasumi-1细胞移植瘤的生长,瘤体积及重量明显小于对照组,肿瘤抑制率(IR%)为57.25%。2.细胞周期阻滞于Go/G1期。3.P21WAF1/CIP蛋白表达水平(0.900±0.113)显著高于对照组(0.390±0.001)、pRB蛋白表达水平(0.340±0.620)显著低于对照组(0.810±0.420)。结论 VPA可通过对Kasumi-l细胞周期蛋白及周期蛋白依赖性激酶抑制剂的影响,使细胞阻滞于Go/G1期。

关键词: 白血病, VPA, 细胞周期, 裸鼠移植瘤, pRB

Abstract: Objective To investigate the influence of Valproic acid(VPA) on cell cycle of Kasumi-1 cells. Methods Kasumi-1 cell line model transplanted subcutaneously in nude mice were established and divided into control group and VPA group, to observe and record the growth of nude mice and their transplanted tumors and calculate volume and inhibition rate.Kasumi-1 cell of each group cell cycle changes were analyzed by flow cytometry.P21WAF1/CIPand pRB were detected by immunohistochemistry and Western blot. Results ①VPA obviously inhibited the growth of tumor, animals treaed with VPA showed a statistically significant decrease in tumor volume and weight compared with controls with 57.25% growth inhibition. ?VPA blocked cell in G0/G1 phase were detected by flow cytometry. ?The P21WAF1/CIP protein significantly increased with VPA group. pRB protein significantly decrease with VPA group. Conclusion We conclude that administration of VPA inhibit the growth of Kasumi-1 cell line tumor VPA can arrest Kasumi-l cell in Go/G1 phase through the regulation of P21WAF1/CIP and pRB.

Key words: Leukemia , Valproic acid, Cell cycle, xenograft tumor, pRB