中华胰腺病杂志
中華胰腺病雜誌
중화이선병잡지
CHINESE JOURNAL OF PANCREATOLOGY
2015年
2期
112-115
,共4页
吴敏%李洁%刘晓%李钦芳%郭晓榕%湛先保
吳敏%李潔%劉曉%李欽芳%郭曉榕%湛先保
오민%리길%류효%리흠방%곽효용%담선보
慢病毒感染%自噬%细胞系%AR42J细胞
慢病毒感染%自噬%細胞繫%AR42J細胞
만병독감염%자서%세포계%AR42J세포
Lentivirus infections%Autophagy%Cell line%AR42J cell
目的 建立稳定表达增强型GFP (EGFP)-LC3的AR42J细胞.方法 利用慢病毒过表达载体Lentiviral-EGFP-LC3包装成慢病毒,感染大鼠胰腺腺泡细胞AR42J.以Lentiviral-EGFP感染作为阴性对照.通过倒置荧光显微镜观察及流式细胞分析仪检测病毒感染效率,蛋白质印迹法检测稳定传代细胞株的LC3蛋白表达.用毒胡萝卜素处理细胞建立内质网应激模型,采用蛋白质印迹法检测应激的AR42J细胞的LC3、PERK蛋白表达.结果 AR42J细胞的Lentiviral-EGFP-LC3感染效率>85%,并能稳定传代.Lentiviral-EGFP-LC3感染的AR42J细胞的LC3 mRNA表达量为未感染细胞的(9.14±0.32)倍;LC3蛋白阳性表达并有EGFP-LC3融合蛋白的表达.Lentiviral-EGFP感染的AR42J细胞的LC3 mRNA表达量为未感染细胞的(1.08 ±0.07)倍,无LC3蛋白表达,仅有GFP表达.与未感染组比较,EGFP-LC3组的LC3 mRNA表达显著升高,差异有统计学意义(P<0.05),而EGFP组的差异无统计学意义.结论 成功构建了稳定表达EGFP-LC3的大鼠胰腺外分泌细胞AR42J,为进一步研究急性胰腺炎与自噬的关系提供了新的细胞模型.
目的 建立穩定錶達增彊型GFP (EGFP)-LC3的AR42J細胞.方法 利用慢病毒過錶達載體Lentiviral-EGFP-LC3包裝成慢病毒,感染大鼠胰腺腺泡細胞AR42J.以Lentiviral-EGFP感染作為陰性對照.通過倒置熒光顯微鏡觀察及流式細胞分析儀檢測病毒感染效率,蛋白質印跡法檢測穩定傳代細胞株的LC3蛋白錶達.用毒鬍蘿蔔素處理細胞建立內質網應激模型,採用蛋白質印跡法檢測應激的AR42J細胞的LC3、PERK蛋白錶達.結果 AR42J細胞的Lentiviral-EGFP-LC3感染效率>85%,併能穩定傳代.Lentiviral-EGFP-LC3感染的AR42J細胞的LC3 mRNA錶達量為未感染細胞的(9.14±0.32)倍;LC3蛋白暘性錶達併有EGFP-LC3融閤蛋白的錶達.Lentiviral-EGFP感染的AR42J細胞的LC3 mRNA錶達量為未感染細胞的(1.08 ±0.07)倍,無LC3蛋白錶達,僅有GFP錶達.與未感染組比較,EGFP-LC3組的LC3 mRNA錶達顯著升高,差異有統計學意義(P<0.05),而EGFP組的差異無統計學意義.結論 成功構建瞭穩定錶達EGFP-LC3的大鼠胰腺外分泌細胞AR42J,為進一步研究急性胰腺炎與自噬的關繫提供瞭新的細胞模型.
목적 건립은정표체증강형GFP (EGFP)-LC3적AR42J세포.방법 이용만병독과표체재체Lentiviral-EGFP-LC3포장성만병독,감염대서이선선포세포AR42J.이Lentiviral-EGFP감염작위음성대조.통과도치형광현미경관찰급류식세포분석의검측병독감염효솔,단백질인적법검측은정전대세포주적LC3단백표체.용독호라복소처리세포건립내질망응격모형,채용단백질인적법검측응격적AR42J세포적LC3、PERK단백표체.결과 AR42J세포적Lentiviral-EGFP-LC3감염효솔>85%,병능은정전대.Lentiviral-EGFP-LC3감염적AR42J세포적LC3 mRNA표체량위미감염세포적(9.14±0.32)배;LC3단백양성표체병유EGFP-LC3융합단백적표체.Lentiviral-EGFP감염적AR42J세포적LC3 mRNA표체량위미감염세포적(1.08 ±0.07)배,무LC3단백표체,부유GFP표체.여미감염조비교,EGFP-LC3조적LC3 mRNA표체현저승고,차이유통계학의의(P<0.05),이EGFP조적차이무통계학의의.결론 성공구건료은정표체EGFP-LC3적대서이선외분비세포AR42J,위진일보연구급성이선염여자서적관계제공료신적세포모형.
Objective To establish a stable AR42J cell line expressing EGFP LC3.Methods The EGFP LC3 overexpressed Lentivirus was constructed and transfected into pancreatic acinar cells (AR42J) of rats.The rats with Lentiviral EGFP transfection were treated as negative control.The transfection efficiency was detected by inverted fluorescence microscope and flow cytometry.The EGFP LC3 protein expression in the stable cell lines were analyzed by Western blot.The cells were treated with thapsigargin to establish endoplasmic reticulum stress model,and the LC3,PERK protein expressions were detected by Western blot.Results The transfection efficiency of Lentiviral EGFP LC3 of AR42J cell was > 85%,which could achieve stable passage.The expression of LC3 mRNA of AR42J cells transfected with Lentiviral EGFP LC3 was 9.14 ±0.32 folds higher than that of negative control,which had no expression of LC3 protein,only EGFP expression.However,compared with non-transfection group,the LC3 mRNA expression in EGFP group was not significantly different.Conclusions A pancreatic acinar cell line (AR42J) of rat stably expressing EGFP LC3 protein is successfully constructed.And it may provide a new model for further research of the relationship between acute pancreatitis and autophagy.