郑州大学学报(医学版)
鄭州大學學報(醫學版)
정주대학학보(의학판)
JOURNAL OF ZHENGZHOU UNIVERSITY(MEDICAL SCIENCES)
2013年
4期
485-488
,共4页
陈李影慧%吴武佳%秦东春
陳李影慧%吳武佳%秦東春
진리영혜%오무가%진동춘
肺癌%A549细胞%PDTC%NF-κB%凋亡%星形细胞上调基因-1
肺癌%A549細胞%PDTC%NF-κB%凋亡%星形細胞上調基因-1
폐암%A549세포%PDTC%NF-κB%조망%성형세포상조기인-1
lung cancer%A549 cell%pyrrolidine dithiocarbamate%NF-κB%apoptosis%astrocyte elevated gene-1
目的:观察NF-κB特异性抑制剂PDTC对人肺腺癌A549细胞增殖、细胞周期、凋亡及星形细胞上调基因-1(AEG-1)表达的影响。方法:用不同浓度(25、50、100、200μmol/L)的PDTC分别处理A549细胞,对照组不给PDTC。应用MTT法检测处理24、48、72 h后细胞增殖抑制率,流式细胞术检测处理24 h后细胞周期的变化,Ho-echst33342荧光染色检测处理24 h后细胞的凋亡情况,RT-PCR和Western blot检测处理24 h后细胞AEG-1 mRNA和蛋白的表达。结果:经PDTC处理的A549细胞增殖明显受抑,呈时间和浓度依赖性( F时间=531.981, F浓度=388.475,P<0.05);与对照组相比,PDTC处理24 h后A549细胞G0/G1期细胞比例上升(P<0.05),细胞形态出现明显凋亡改变;随着PDTC浓度的增加,癌细胞内AEG-1 mRNA和蛋白的表达水平降低( F=275.162、59.473,P<0.05)。结论:PDTC可抑制A549细胞的增殖,诱导其凋亡,其机制可能与PDTC抑制NF-κB、AEG-1的表达有关。
目的:觀察NF-κB特異性抑製劑PDTC對人肺腺癌A549細胞增殖、細胞週期、凋亡及星形細胞上調基因-1(AEG-1)錶達的影響。方法:用不同濃度(25、50、100、200μmol/L)的PDTC分彆處理A549細胞,對照組不給PDTC。應用MTT法檢測處理24、48、72 h後細胞增殖抑製率,流式細胞術檢測處理24 h後細胞週期的變化,Ho-echst33342熒光染色檢測處理24 h後細胞的凋亡情況,RT-PCR和Western blot檢測處理24 h後細胞AEG-1 mRNA和蛋白的錶達。結果:經PDTC處理的A549細胞增殖明顯受抑,呈時間和濃度依賴性( F時間=531.981, F濃度=388.475,P<0.05);與對照組相比,PDTC處理24 h後A549細胞G0/G1期細胞比例上升(P<0.05),細胞形態齣現明顯凋亡改變;隨著PDTC濃度的增加,癌細胞內AEG-1 mRNA和蛋白的錶達水平降低( F=275.162、59.473,P<0.05)。結論:PDTC可抑製A549細胞的增殖,誘導其凋亡,其機製可能與PDTC抑製NF-κB、AEG-1的錶達有關。
목적:관찰NF-κB특이성억제제PDTC대인폐선암A549세포증식、세포주기、조망급성형세포상조기인-1(AEG-1)표체적영향。방법:용불동농도(25、50、100、200μmol/L)적PDTC분별처리A549세포,대조조불급PDTC。응용MTT법검측처리24、48、72 h후세포증식억제솔,류식세포술검측처리24 h후세포주기적변화,Ho-echst33342형광염색검측처리24 h후세포적조망정황,RT-PCR화Western blot검측처리24 h후세포AEG-1 mRNA화단백적표체。결과:경PDTC처리적A549세포증식명현수억,정시간화농도의뢰성( F시간=531.981, F농도=388.475,P<0.05);여대조조상비,PDTC처리24 h후A549세포G0/G1기세포비례상승(P<0.05),세포형태출현명현조망개변;수착PDTC농도적증가,암세포내AEG-1 mRNA화단백적표체수평강저( F=275.162、59.473,P<0.05)。결론:PDTC가억제A549세포적증식,유도기조망,기궤제가능여PDTC억제NF-κB、AEG-1적표체유관。
Aim:To explore the effect of pyrrolidine dithiocarbamate (PDTC) on proliferation,cell cycle,apoptosis of human lung cancer cell line A549 and expression of astrocyte elevated gene-1(AEG-1).Methods:A549 cells were treated by PDTC with different concentrations (25,50,100,200 μmol/L) for different time(24,48,72 h)respectively.MTT assay was used to detect the inhibition rates of cell growth .Flow cytometry was used to analyze the changes of cell cycle .Ho-echst33342 staining was used to observe the apoptosis of cells with the fluorescence microscope .RT-PCR and Western blot were used to detect the expression of AEG-1.Results:PDTC inhibited the A549 cell proliferation in a time-and dose-de-pendent manner(Ftime =531.981,Fconcentration =388.475,P<0.05).In contrast to the control, the percentage of cells in G0/G1 phase increased significantly in PDTC group (P<0.05)with apparent apoptotic morphological changes .The mRNA and protein expressions of AEG-1 were reduced with increasing concentration of PDTC (F=275.162 and 59.473,P<0.05).Conclusion:PDTC can inhibit the proliferation, and induce the apoptosis of A549 cells.The mechanism may be related to the down-regulated expressions of NF-κB and AEG-1 gene induced by PDTC .