中国老年学杂志
中國老年學雜誌
중국노년학잡지
CHINESE JOURNAL OF GERONTOLOGY
2015年
4期
1007-1010
,共4页
β淀粉样蛋白1~42%U87细胞%凋亡
β澱粉樣蛋白1~42%U87細胞%凋亡
β정분양단백1~42%U87세포%조망
β-amyloid peptide 1~42%U87 Cell%Apoptosis
目的:研究重组人β淀粉样蛋白( Aβ)1~42对人神经胶质瘤细胞U87毒性作用机制。方法用MTT检测代谢率,倒置显微镜、投射电镜以及流式细胞术技术研究Aβ1~42对U87细胞的损伤作用机制。结果用Aβ1~42处理U87细胞24 h后,Aβ1~42剂量依赖性地引起U87细胞的MTT代谢率减少。倒置显微镜及透射电镜观察发现经Aβ1~42处理的 U87细胞表现出凋亡细胞的特征。流式细胞仪检测表明10、20、50μmol/L 的Aβ1~42组U87细胞的凋亡率分别为35.6%,42.2%,58.1%。结论 Aβ1~42致U87细胞发生损伤主要是通过细胞凋亡的途径。
目的:研究重組人β澱粉樣蛋白( Aβ)1~42對人神經膠質瘤細胞U87毒性作用機製。方法用MTT檢測代謝率,倒置顯微鏡、投射電鏡以及流式細胞術技術研究Aβ1~42對U87細胞的損傷作用機製。結果用Aβ1~42處理U87細胞24 h後,Aβ1~42劑量依賴性地引起U87細胞的MTT代謝率減少。倒置顯微鏡及透射電鏡觀察髮現經Aβ1~42處理的 U87細胞錶現齣凋亡細胞的特徵。流式細胞儀檢測錶明10、20、50μmol/L 的Aβ1~42組U87細胞的凋亡率分彆為35.6%,42.2%,58.1%。結論 Aβ1~42緻U87細胞髮生損傷主要是通過細胞凋亡的途徑。
목적:연구중조인β정분양단백( Aβ)1~42대인신경효질류세포U87독성작용궤제。방법용MTT검측대사솔,도치현미경、투사전경이급류식세포술기술연구Aβ1~42대U87세포적손상작용궤제。결과용Aβ1~42처리U87세포24 h후,Aβ1~42제량의뢰성지인기U87세포적MTT대사솔감소。도치현미경급투사전경관찰발현경Aβ1~42처리적 U87세포표현출조망세포적특정。류식세포의검측표명10、20、50μmol/L 적Aβ1~42조U87세포적조망솔분별위35.6%,42.2%,58.1%。결론 Aβ1~42치U87세포발생손상주요시통과세포조망적도경。
Objective To discuss the mechanisms of recombinant β-amyloid peptide 1~42(Aβ1~42 ) on U87 cell toxicity.Methods MTT assay,inverted microscope ,transmission electronic microscopy and flow cytometry were used to detect the mechanisms of recombinant Aβ1~42 on U87 cell toxicity.Results Treated with Aβ1~42 on U87 cells after 24 h,Aβ1~42 caused U87 cells metabolic rate decreasing with dose dependence ,the characteristics of the apoptosis cells were found by inverted microscope and transmission electronic microscopy .The U87 cell apoptosis rate in 10,20,50 μmol/L Aβ1~42 groups were 35.6%,42.2%,58.1% respectively.Conclusions Aβ1~42 induces U87 cell damage mainly be the way of apoptosis .