浙江中医药大学学报
浙江中醫藥大學學報
절강중의약대학학보
JOURNAL OF ZHEJIANG UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
2014年
4期
451-455,460
,共6页
俞雯雯%张航%葛卫红%史丽云
俞雯雯%張航%葛衛紅%史麗雲
유문문%장항%갈위홍%사려운
β-榄香烯%U251%细胞凋亡%microRNA
β-欖香烯%U251%細胞凋亡%microRNA
β-람향희%U251%세포조망%microRNA
β-Elemene%U251%apoptosis%microRNA
[目的]探讨β-榄香烯(β-elemene,β-ELE)对人脑胶质瘤细胞株U251凋亡的诱导作用及对c-myc、hTERT、microRNA分子表达的影响。[方法]用β-榄香烯处理U251细胞株24小时,流式细胞术检测细胞凋亡;RT-PCR法检测c-myc、hTERT基因的表达;Western-blot检测c-myc、hTERT蛋白的表达;基因芯片检测β-榄香烯处理对细胞表达microRNA的影响,并以Real time-PCR法验证其中miR-654-3p、miR-431、miR-150和miR-1976的表达水平。[结果]β-榄香烯明显诱导U251细胞的凋亡,与对照组(0μg·ml-1β-ELE)相比,实验组(100,200,300μg· ml-1β-ELE)的细胞凋亡有所增加,凋亡程度随着β-ELE的浓度增大而增加,具有统计学差异;β-榄香烯抑制了c-myc、hTERT基因mRNA和蛋白的表达,与对照组(0μg·ml-1β-ELE)相比,实验组(50,100,150μg·ml-1β-ELE)的c-myc、hTERT基因mRNA和蛋白的表达水平都有所下降,下降程度随着β-ELE的浓度增大而增加,具有统计学差异;基因芯片和Real time-PCR结果显示,与对照组(0μg·ml-1β-ELE)相比,实验组(150μg·ml-1β-ELE)miR-654-3p、miR-431、miR-150和miR-1976的表达有所上调,具有统计学差异。[结论]β-榄香烯诱导了U251细胞凋亡抑制了c-myc、hTERT基因mRNA与蛋白的表达,显著上调了miR-654-3p、miR-431、miR-150和miR-1976的表达水平。因此,β-榄香烯诱导U251细胞凋亡的作用可能是通过其抑制c-myc、hTERT基因mRNA和蛋白的表达及上调microRNA来实现的。此机制为抗肿瘤药物的发展提供了一定的理论基础,值得进一步深入探讨。
[目的]探討β-欖香烯(β-elemene,β-ELE)對人腦膠質瘤細胞株U251凋亡的誘導作用及對c-myc、hTERT、microRNA分子錶達的影響。[方法]用β-欖香烯處理U251細胞株24小時,流式細胞術檢測細胞凋亡;RT-PCR法檢測c-myc、hTERT基因的錶達;Western-blot檢測c-myc、hTERT蛋白的錶達;基因芯片檢測β-欖香烯處理對細胞錶達microRNA的影響,併以Real time-PCR法驗證其中miR-654-3p、miR-431、miR-150和miR-1976的錶達水平。[結果]β-欖香烯明顯誘導U251細胞的凋亡,與對照組(0μg·ml-1β-ELE)相比,實驗組(100,200,300μg· ml-1β-ELE)的細胞凋亡有所增加,凋亡程度隨著β-ELE的濃度增大而增加,具有統計學差異;β-欖香烯抑製瞭c-myc、hTERT基因mRNA和蛋白的錶達,與對照組(0μg·ml-1β-ELE)相比,實驗組(50,100,150μg·ml-1β-ELE)的c-myc、hTERT基因mRNA和蛋白的錶達水平都有所下降,下降程度隨著β-ELE的濃度增大而增加,具有統計學差異;基因芯片和Real time-PCR結果顯示,與對照組(0μg·ml-1β-ELE)相比,實驗組(150μg·ml-1β-ELE)miR-654-3p、miR-431、miR-150和miR-1976的錶達有所上調,具有統計學差異。[結論]β-欖香烯誘導瞭U251細胞凋亡抑製瞭c-myc、hTERT基因mRNA與蛋白的錶達,顯著上調瞭miR-654-3p、miR-431、miR-150和miR-1976的錶達水平。因此,β-欖香烯誘導U251細胞凋亡的作用可能是通過其抑製c-myc、hTERT基因mRNA和蛋白的錶達及上調microRNA來實現的。此機製為抗腫瘤藥物的髮展提供瞭一定的理論基礎,值得進一步深入探討。
[목적]탐토β-람향희(β-elemene,β-ELE)대인뇌효질류세포주U251조망적유도작용급대c-myc、hTERT、microRNA분자표체적영향。[방법]용β-람향희처리U251세포주24소시,류식세포술검측세포조망;RT-PCR법검측c-myc、hTERT기인적표체;Western-blot검측c-myc、hTERT단백적표체;기인심편검측β-람향희처리대세포표체microRNA적영향,병이Real time-PCR법험증기중miR-654-3p、miR-431、miR-150화miR-1976적표체수평。[결과]β-람향희명현유도U251세포적조망,여대조조(0μg·ml-1β-ELE)상비,실험조(100,200,300μg· ml-1β-ELE)적세포조망유소증가,조망정도수착β-ELE적농도증대이증가,구유통계학차이;β-람향희억제료c-myc、hTERT기인mRNA화단백적표체,여대조조(0μg·ml-1β-ELE)상비,실험조(50,100,150μg·ml-1β-ELE)적c-myc、hTERT기인mRNA화단백적표체수평도유소하강,하강정도수착β-ELE적농도증대이증가,구유통계학차이;기인심편화Real time-PCR결과현시,여대조조(0μg·ml-1β-ELE)상비,실험조(150μg·ml-1β-ELE)miR-654-3p、miR-431、miR-150화miR-1976적표체유소상조,구유통계학차이。[결론]β-람향희유도료U251세포조망억제료c-myc、hTERT기인mRNA여단백적표체,현저상조료miR-654-3p、miR-431、miR-150화miR-1976적표체수평。인차,β-람향희유도U251세포조망적작용가능시통과기억제c-myc、hTERT기인mRNA화단백적표체급상조microRNA래실현적。차궤제위항종류약물적발전제공료일정적이론기출,치득진일보심입탐토。
[Objective]To investigate the effects of β-elemene on apoptosis of human glioma U251 cells and on the expression of c-myc ,hTERT and microRNA. [Methods] U251 cells were treated with β-elemene or the vehicle for 24 hours, fol owed by the apoptotic analysis with flow cytometry, and qualitative test for the c-myc,hTERT levels with RT-PCR and Western-blot. Furthermore, expression of microRNA was analyzed by gene microarray, and the selective microRNAs including miR-654-3p,miR-431,miR-150 and miR-1976 were examined by Real time-PCR. [Results] β-elemene obviously induced U251 cellapoptosis, which was associated with dose-dependent reduction in expression of c-myc, hTERT, at mRNA and protein levels. Microarray and Real time-PCR analysis showed that β-elemene altered the expression of miR-654-3p,miR-431,miR-150 and miR-1976 in the glioma. [Conclusions] β-elemene induces U251 apoptosis, inhibits the expressions of c-myc, hTERT, gene mRNA and protein, and markedly up-regulates the expression of miR-654-3p,miR-431,miR-150 and miR-1976, therefore, the function of β-elemene inducing U251 apoptosis may have the mechanism of inhibiting the expression of c-myc, hTERT, gene mRNA and protein and up-regulating microRNA, which offers definite theoretic foundation for developing anti-tumor drugs, worth further discussion.