癌变·畸变·突变
癌變·畸變·突變
암변·기변·돌변
CARCINOGENSES,TERATOGENSIS AND MUTAGENESIS
2014年
2期
127-130
,共4页
徐新云%毛侃琅%周丽%吴德生%毛吉炎%谢杏%秦逍云%谭琴
徐新雲%毛侃瑯%週麗%吳德生%毛吉炎%謝杏%秦逍雲%譚琴
서신운%모간랑%주려%오덕생%모길염%사행%진소운%담금
肝细胞%CYP2E1基因%慢病毒载体%转染%过表达
肝細胞%CYP2E1基因%慢病毒載體%轉染%過錶達
간세포%CYP2E1기인%만병독재체%전염%과표체
liver cells%CYP2E1 gene%lentivirial vector%transfection%overexpression
目的:应用分子克隆技术,构建CYP2E1基因过表达载体,转染L02肝细胞,建立CYP2E1过表达细胞株并进行鉴定,为深入研究环境和职业毒物的毒作用机制提供模型细胞。方法:根据GenBank提供的基因cDNA序列设计引物,PCR扩增该基因并将其克隆到慢病毒过表达载体pLVX-acGFP1-C1中,将已经构建的慢病毒载体对293FT细胞进行转染,收集病毒上清,感染正常L02肝细胞。用嘌呤霉素进行筛选得到转染CYP2E1基因的L02细胞,通过基因测序、荧光定量PCR和Western blot对细胞株进行鉴定。结果:测序证明重组慢病毒过表达载体CYP2E1基因序列与GenBank提供的CYP2E1序列一致,荧光定量PCR检测转染CYP2E1基因的L02细胞比正常肝细胞CYP2E1 mRNA表达提高273倍,Western blot实验显示转染CYP2E1基因的L02细胞CYP2E1蛋白表达水平比正常肝细胞提高3.2倍。结论:成功构建了CYP2E1基因过表达细胞株,可应用于环境毒物和职业毒物的分子机制研究。CYP2E1
目的:應用分子剋隆技術,構建CYP2E1基因過錶達載體,轉染L02肝細胞,建立CYP2E1過錶達細胞株併進行鑒定,為深入研究環境和職業毒物的毒作用機製提供模型細胞。方法:根據GenBank提供的基因cDNA序列設計引物,PCR擴增該基因併將其剋隆到慢病毒過錶達載體pLVX-acGFP1-C1中,將已經構建的慢病毒載體對293FT細胞進行轉染,收集病毒上清,感染正常L02肝細胞。用嘌呤黴素進行篩選得到轉染CYP2E1基因的L02細胞,通過基因測序、熒光定量PCR和Western blot對細胞株進行鑒定。結果:測序證明重組慢病毒過錶達載體CYP2E1基因序列與GenBank提供的CYP2E1序列一緻,熒光定量PCR檢測轉染CYP2E1基因的L02細胞比正常肝細胞CYP2E1 mRNA錶達提高273倍,Western blot實驗顯示轉染CYP2E1基因的L02細胞CYP2E1蛋白錶達水平比正常肝細胞提高3.2倍。結論:成功構建瞭CYP2E1基因過錶達細胞株,可應用于環境毒物和職業毒物的分子機製研究。CYP2E1
목적:응용분자극륭기술,구건CYP2E1기인과표체재체,전염L02간세포,건립CYP2E1과표체세포주병진행감정,위심입연구배경화직업독물적독작용궤제제공모형세포。방법:근거GenBank제공적기인cDNA서렬설계인물,PCR확증해기인병장기극륭도만병독과표체재체pLVX-acGFP1-C1중,장이경구건적만병독재체대293FT세포진행전염,수집병독상청,감염정상L02간세포。용표령매소진행사선득도전염CYP2E1기인적L02세포,통과기인측서、형광정량PCR화Western blot대세포주진행감정。결과:측서증명중조만병독과표체재체CYP2E1기인서렬여GenBank제공적CYP2E1서렬일치,형광정량PCR검측전염CYP2E1기인적L02세포비정상간세포CYP2E1 mRNA표체제고273배,Western blot실험현시전염CYP2E1기인적L02세포CYP2E1단백표체수평비정상간세포제고3.2배。결론:성공구건료CYP2E1기인과표체세포주,가응용우배경독물화직업독물적분자궤제연구。CYP2E1
OBJECTIVE:To construct the lentivirus vector with CYP2E1 gene overexpression,lentivirus was packaged,then transduced into normal human liver cells (L02 cells),finally the CYP2E1 overexpressing cells (CYP2E1 OE cells) were constructed and identified. METHODS:Primers were designed according to cDNA sequence of CYP2E1 gene from GenBank. The gene was amplified using PCR and ligated into the lentiviral vector pLVX-acGFP-C1. 293FT cells were transfected with the recombinant vector,viral supernatant was collected,L02 liver cells were then transfected. After puromycin screening,L02 cells with CYP2E1 gene transfection were constructed. Finally,gene sequencing,real-time fluorescent quantitative PCR and western blot assays were performed for identification. RESULTS:The sequence contained in the recombinant vector was exactly the same as CYP2E1 gene from GenBank. CYP2E1 gene expression level in L02 cells with CYP2E1 gene transfection was 273 times higher than that of normal L02 cells. CYP2E1 protein level in L02 cells with CYP2E1 gene transfection was 3.2 times higher than that of normal L02 cells. CONCLUSION:CYP2E1-overexpressing cell strain was successfully constructed by using lentiviral vector,this cell strain expressed CYP2E1 with high efficiency,and could become a useful tool for metabolism research of environmental or occupational pollutants.