殷小成肖正香彭艳辉赵谦阳声芝刘群策.DADS 上调K562 细胞p21WAF1 表达对细胞生长阻抑和凋亡
的实验研究[J].,2012,12(3):439-441 |
DADS 上调K562 细胞p21WAF1 表达对细胞生长阻抑和凋亡
的实验研究 |
Effect of Diallyl Disulfide on the Proliferation, Cell Cycle, Apoptosisof Human Leukemia Cell Line K562 |
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DOI: |
中文关键词: DADS K562 细胞 细胞凋亡 基因,p21WAF1 |
英文关键词: DADS K562 cells Apoptosis Gen p21WAF1 |
基金项目:湖南省高校科研经费项目(09C840) |
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中文摘要: |
目的:探讨二烯丙基二硫(DADS)对体外培养的人白血病细胞系K562 细胞生长阻抑和凋亡作用及机制。方法:采用MTT
分析法检测细胞活性、流式细胞术分析细胞周期及凋亡率、免疫组化检测p21 WAF1 基因表达。结果:1). DADS 在10mg / L~80 mg
/ L 范围内,对K562 细胞的抑制作用呈剂量- 时间依赖效应;2). 不同浓度DADS 作用于K562 细胞24h 后,细胞周期发生了变
化:DADS 可以将K562 细胞阻滞于G2 / M 期;3). DADS 浓度在10mg / L~80mg / L 时作用K562 细胞24h 后,凋亡率逐渐升高,
有显著的统计学意义(P<0.05 或P<0.01);4). 用浓度分别为0mg / L,20mg / L,40mg / L,80mg / L 处理K562 细胞24h 后,p21 WAF1 蛋
白表达上调,有统计学意义(P<0.05 或P<0.01),溶媒组和阴性对照组无差别(P>0.05)。结论:DADS 有抑制K562 细胞增殖和促
进K562 细胞凋亡的作用。其作用的可能机制与上调细胞周期蛋白依赖性激酶抑制剂p21WAF1 表达,从而诱使k562 细胞阻滞于
G2/M 期有关。 |
英文摘要: |
Objective: To explore the mechanism of cell proliferation-inhabit and apotosis of human leukemia cell line K562
treated with diallyl disulfide (DADS). Methods: MTT assay,flow cytometry and immunohistochemistry were employed to examine
DADS-induced apoptosis and growth inhibition in human Leukemia cell Line K562. Rusults:1.DADS inhibited proliferation of K562
cells from 10~80mg.L-DADS in a dose-and time-dependent manner ; 2 .K562 cells treated with DADS after the treatment for 24 hours
significantly increased in the percentage of cells in the G2/M phase; 3.From 10~80mg.L-DADS induced apotosis of K562 cells after the
treatment for 24 hours, the difference is significant;4. DADS could up-regulate the level of protein of p21WAF1 in K562 cells. Conclusions:
DADS has apparent effects of proliferation-inhabit and apoptosis on K562 cells in vitro, its anti-leukemia mechanisms may be related to
up-regulate the gene of of p21WAF1 in K562 cells. |
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