학술논문

诃子水提物对肺癌 A549细胞中 p53表达的影响 / Expression of p53 in A549 cells treated by aqueous extract of terminalia
Document Type
Academic Journal
Source
解剖学杂志 / Chinese Journal of Anatomy. (3):269-271
Subject
诃子水提物
肺癌 A549 细胞
p53
aqueous extract of terminalia
A549 cells
Language
Chinese
ISSN
1001-1633
Abstract
目的::探讨诃子水提物对人肺癌 A549细胞增殖的影响及 p53在此过程中的作用。方法:以不同浓度的诃子水提物干预人肺癌 A549细胞为实验组,未经干预的为空白对照组。采用 MTT 法检测10、1、0.1、0.01μg/ml 诃子水提物分别作用24、48、72 h A549细胞后的增殖抑制率;Real-time PCR 法检测 p53在不同浓度诃子水提物作用前后的相对表达量的变化;免疫细胞荧光法检测 p53蛋白的表达。结果:MTT 法检测结果显示,增加水提物浓度,抑制率随之上升;PCR 法检测显示,实验组较对照组 p53的 mRNA 表达量上调;免疫细胞荧光法检测显示,实验组较对照组 p53蛋白表达增多,并与水提物浓度成正比。结论:诃子水提物能诱导 A549细胞凋亡,可能与 p53基因被激活有关。
Obj ective : To investigate the effects of aqueous extract of terminalion on A5 4 9 human lung cancer cell proliferation,and the possible role of p5 3 in the process.Methods :Different concentrations of aqueous extract of terminalia were used to treat human lung cancer A5 4 9 cells in different experimental groups.Proliferation inhibition rate was detected by MTT assay at 2 4 ,4 8 and 7 2 h with different concentrations (1 0 ,1 ,0.1 ,0.0 1 μg/ml)aqueous extract of terminalia.p5 3 mPNA expression level was detected by real-time PCR assay;p5 3 protein expression was detected by immunofluorescence assay.Results :MTT assay showed that the proliferation rate of A5 4 9 cells treated by aqueous extract of terminalia was gradually increased.p5 3 expression in protein and mRNA level were higher in experimental group than that in control group. Conclusion:Aqueous extract of terminalia can induce the apoptosis of A5 4 9 cells,and this process is related to the activation of p5 3 gene.