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
3期
297-300
,共4页
郭爱叶%丁胭脂%张虎%张红新%陈奎生
郭愛葉%丁胭脂%張虎%張紅新%陳奎生
곽애협%정연지%장호%장홍신%진규생
Smo%bcl-2%食管癌%凋亡
Smo%bcl-2%食管癌%凋亡
Smo%bcl-2%식관암%조망
Smo%bcl-2%esophageal carcinoma%apoptosis
目的:探讨Smo siRNA对人食管癌EC9706细胞凋亡及凋亡相关基因bcl-2表达的影响。方法:设计并合成Smo siRNA-3,转染食管癌EC9706细胞后,分别采用RT-PCR和Western blot 法检测细胞中Smo、bcl-2 mRNA和蛋白的表达;采用TUNEL法及流式细胞术检测细胞凋亡,分析凋亡指数( AI)和凋亡细胞比例。以未转染、无关序列siRNA转染和转染试剂的细胞作对照。结果:与各对照组相比, Smo siRNA-3转染细胞24、48和72 h 后EC9706细胞中Smo、bcl2-mRNA的表达均明显降低(P<0.05),以转染72 h降低最显著(P<0.05)。与各对照组相比,Smo siRNA -3转染72 h后细胞中Smo、bcl-2蛋白的表达均明显降低(F=151.310、143.190,P<0.001),AI增加(F=66.270,P<0.001),早期和晚期凋亡细胞比例均增加(F=101.100、334.990,P<0.001)。结论:Smo siRNA可能通过抑制细胞中Smo基因表达,进而下调bcl-2表达,促进EC9706细胞凋亡。
目的:探討Smo siRNA對人食管癌EC9706細胞凋亡及凋亡相關基因bcl-2錶達的影響。方法:設計併閤成Smo siRNA-3,轉染食管癌EC9706細胞後,分彆採用RT-PCR和Western blot 法檢測細胞中Smo、bcl-2 mRNA和蛋白的錶達;採用TUNEL法及流式細胞術檢測細胞凋亡,分析凋亡指數( AI)和凋亡細胞比例。以未轉染、無關序列siRNA轉染和轉染試劑的細胞作對照。結果:與各對照組相比, Smo siRNA-3轉染細胞24、48和72 h 後EC9706細胞中Smo、bcl2-mRNA的錶達均明顯降低(P<0.05),以轉染72 h降低最顯著(P<0.05)。與各對照組相比,Smo siRNA -3轉染72 h後細胞中Smo、bcl-2蛋白的錶達均明顯降低(F=151.310、143.190,P<0.001),AI增加(F=66.270,P<0.001),早期和晚期凋亡細胞比例均增加(F=101.100、334.990,P<0.001)。結論:Smo siRNA可能通過抑製細胞中Smo基因錶達,進而下調bcl-2錶達,促進EC9706細胞凋亡。
목적:탐토Smo siRNA대인식관암EC9706세포조망급조망상관기인bcl-2표체적영향。방법:설계병합성Smo siRNA-3,전염식관암EC9706세포후,분별채용RT-PCR화Western blot 법검측세포중Smo、bcl-2 mRNA화단백적표체;채용TUNEL법급류식세포술검측세포조망,분석조망지수( AI)화조망세포비례。이미전염、무관서렬siRNA전염화전염시제적세포작대조。결과:여각대조조상비, Smo siRNA-3전염세포24、48화72 h 후EC9706세포중Smo、bcl2-mRNA적표체균명현강저(P<0.05),이전염72 h강저최현저(P<0.05)。여각대조조상비,Smo siRNA -3전염72 h후세포중Smo、bcl-2단백적표체균명현강저(F=151.310、143.190,P<0.001),AI증가(F=66.270,P<0.001),조기화만기조망세포비례균증가(F=101.100、334.990,P<0.001)。결론:Smo siRNA가능통과억제세포중Smo기인표체,진이하조bcl-2표체,촉진EC9706세포조망。
Aim:To investigate the influence of Smo siRNA on bcl-2 expression and apoptosis of human esophgeal car-cinoma EC9706 cells.Methods: Smo siRNA-3 was designed and synthesized successfully , and then transfected into EC9706 cells.The expression of Smo ,bcl-2 protein and mRNA of transfected EC 9706 cells were detected by Western blot and RT-PCR,respectively,the apoptosis were detected by TUNEL method and flow cytometry ,and apoptosis index(AI) and apoptosis cells proportion were calculated .The cells without transfection ,transfected with unrelated sequence siRNA or rea-gent were the control .Results:Compared with the control groups , the mRNA expressions of Smo and bcl-2 in cells trans-fected with Smo siRNA-3 for 24, 48 and 72 h decreased(P<0.05),especially in cells transfected for 72 h(P<0.05). Compared with the control groups ,the protein expressions of Smo and bcl-2 in cells transfected with Smo siRNA-3 for 72 h decreased(F=151.310,143.190,P<0.001),AI increased(F=66.270,P<0.001),and apoptosis cells proportion was higher(P<0.05).Conclusion: Smo siRNA may decrease the expression of bcl-2 through silencing the Smo expression , thus promote the apoptosis of EC 9706 cells.