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)
2014年
5期
641-644
,共4页
李超%钱新华%千新来%付琳琳%吴余
李超%錢新華%韆新來%付琳琳%吳餘
리초%전신화%천신래%부림림%오여
白血病%黄芪多糖%凋亡%凋亡相关基因
白血病%黃芪多糖%凋亡%凋亡相關基因
백혈병%황기다당%조망%조망상관기인
leukemia%astragalus polydsaccharide%apoptosis%apoptosis-related genes
目的:研究黄芪多糖( APS)对人红白血病K562细胞凋亡的影响。方法:采用流式细胞术检测APS对K562细胞凋亡的影响,采用Caspase-3活性测定方法检测APS对K562细胞中Caspase-3活性的影响;通过RT-PCR和Western blot方法检测K562细胞(对照组)和200 mg/L APS诱导48 h的K562细胞( APS组)中Bcl-2、Bcl-XL、Bax、IAP-1和Smac mRNA 和蛋白的表达。结果:APS 组 K562细胞凋亡数(3322.000±413.849)高于对照组(101.333±18.339)(t=13.466,P<0.001)。与对照组相比,APS组K562细胞中Caspase-3活性增加(t=11.562, P<0.001),Bcl-2和IAP-1 mRNA及蛋白的表达均降低(P<0.001),而Bax和Smac mRNA及蛋白的表达均显著增加(P<0.001),Bcl-XL mRNA及蛋白的表达差异无统计学意义(P>0.05)。结论:APS可能是通过下调Bcl-2和IAP-1及上调Bax和Smac的表达而诱导K562细胞发生凋亡。
目的:研究黃芪多糖( APS)對人紅白血病K562細胞凋亡的影響。方法:採用流式細胞術檢測APS對K562細胞凋亡的影響,採用Caspase-3活性測定方法檢測APS對K562細胞中Caspase-3活性的影響;通過RT-PCR和Western blot方法檢測K562細胞(對照組)和200 mg/L APS誘導48 h的K562細胞( APS組)中Bcl-2、Bcl-XL、Bax、IAP-1和Smac mRNA 和蛋白的錶達。結果:APS 組 K562細胞凋亡數(3322.000±413.849)高于對照組(101.333±18.339)(t=13.466,P<0.001)。與對照組相比,APS組K562細胞中Caspase-3活性增加(t=11.562, P<0.001),Bcl-2和IAP-1 mRNA及蛋白的錶達均降低(P<0.001),而Bax和Smac mRNA及蛋白的錶達均顯著增加(P<0.001),Bcl-XL mRNA及蛋白的錶達差異無統計學意義(P>0.05)。結論:APS可能是通過下調Bcl-2和IAP-1及上調Bax和Smac的錶達而誘導K562細胞髮生凋亡。
목적:연구황기다당( APS)대인홍백혈병K562세포조망적영향。방법:채용류식세포술검측APS대K562세포조망적영향,채용Caspase-3활성측정방법검측APS대K562세포중Caspase-3활성적영향;통과RT-PCR화Western blot방법검측K562세포(대조조)화200 mg/L APS유도48 h적K562세포( APS조)중Bcl-2、Bcl-XL、Bax、IAP-1화Smac mRNA 화단백적표체。결과:APS 조 K562세포조망수(3322.000±413.849)고우대조조(101.333±18.339)(t=13.466,P<0.001)。여대조조상비,APS조K562세포중Caspase-3활성증가(t=11.562, P<0.001),Bcl-2화IAP-1 mRNA급단백적표체균강저(P<0.001),이Bax화Smac mRNA급단백적표체균현저증가(P<0.001),Bcl-XL mRNA급단백적표체차이무통계학의의(P>0.05)。결론:APS가능시통과하조Bcl-2화IAP-1급상조Bax화Smac적표체이유도K562세포발생조망。
Aim:To investigate the effect of astragalus polysaccharide ( APS) on apoptosis of human erythroleukemia K562 cells.Methods:The apoptosis of K562 cells induced by APS was observed by Annexin V-FITC/PI combined with flow cytometry and Caspase-3 activity assay.The expressions of Bcl-2,Bcl-XL,Bax,IAP-1 and Smac in K562 cells(control group)and K562 cells treated with 200 mg/L APS for 48 h(APS group)were detected at the mRNA and protein levels by RT-PCR and Western blot assay,respectively.Results:The number of apoptosis K562 cells in APS group(3 322.000 ± 413.849)was significantly higher than that in control group (101.333 ±18.339).The difference had statistical significance (t=13.466,P<0.001).Compared with the control group ,Caspase-3 activity,Bax and Smac expression in K562 cells of APS group increased significantly(t=11.562,P<0.001),while Bcl-2 and IAP-1 expression decreased significantly(P<0.001),and Bcl-XL expression was not significantly different in K 562 cells of APS group compared with the control group (P>0.05).Conclusion:APS induced apoptosis of K562 cells through down-regulating the expression of Bcl-2 and IAP-1 and up-regulating the expression of Bax and Smac .