临床荟萃
臨床薈萃
림상회췌
CLINICAL FOCUS
2015年
2期
210-213
,共4页
王安娜%封晓昆%闫晓东%石英%陈德喜
王安娜%封曉昆%閆曉東%石英%陳德喜
왕안나%봉효곤%염효동%석영%진덕희
肝炎病毒,乙型%自噬%病毒复制
肝炎病毒,乙型%自噬%病毒複製
간염병독,을형%자서%병독복제
hepatitis B virus%autophagy%virus replication
目的:探究自噬与乙型肝炎病毒(hepatitis B virus,HBV)复制之间的相互关系。方法利用 HepG2细胞,转染绿色荧光标记的微管相关蛋白轻链3(GFP-LC3),分别在正常和饥饿条件下培养,另共转染 HBV WT 和GFP-LC3,正常条件培养,免疫荧光观察细胞自噬;分别转染1.3 mer HBV 野生型质粒(HBV WT)与 HBV 突变型(HBV X-)质粒,正常和饥饿两种条件下培养,蛋白印迹检测自噬相关蛋白 LC3和乙型肝炎病毒核心蛋白(HBc)的表达;细胞转染 HBV WT 后,分别正常条件培养(对照组),无血清饥饿培养(饥饿组),加入自噬抑制剂3-甲基腺嘌呤(3-MA)培养(3-MA 组),采用酶联免疫吸附测定法(ELISA)检测细胞上清乙型肝炎表面抗原(HBsAg)和乙型肝炎 e 抗原(HBeAg)的含量。结果转染 HBV WT 质粒的细胞内自噬荧光颗粒较对照组明显增加发生自噬的细胞比例分别为13%和2%;饥饿组 HBsAg 含量(1.856±1.415)较对照组(1.531±0.944)升高,HBeAg 含量(0.533±0.391)较对照组(0.334±0.110)升高,差异具有统计学意义(P <0.05);自噬抑制剂组 HBsAg 含量(1.184±0.759)较饥饿组(1.856±1.415)降低,HBeAg 含量(0.306±0.130)较饥饿组(0.533±0.391)降低(P <0.05);蛋白印迹显示,转染HBV WT 质粒的细胞中 LC3蛋白表达较 HBV X-组增高,且在饥饿条件下,HBc 蛋白的表达增高。结论乙型肝炎病毒可诱导细胞自噬的发生,且自噬可促进乙型肝炎病毒的复制。
目的:探究自噬與乙型肝炎病毒(hepatitis B virus,HBV)複製之間的相互關繫。方法利用 HepG2細胞,轉染綠色熒光標記的微管相關蛋白輕鏈3(GFP-LC3),分彆在正常和饑餓條件下培養,另共轉染 HBV WT 和GFP-LC3,正常條件培養,免疫熒光觀察細胞自噬;分彆轉染1.3 mer HBV 野生型質粒(HBV WT)與 HBV 突變型(HBV X-)質粒,正常和饑餓兩種條件下培養,蛋白印跡檢測自噬相關蛋白 LC3和乙型肝炎病毒覈心蛋白(HBc)的錶達;細胞轉染 HBV WT 後,分彆正常條件培養(對照組),無血清饑餓培養(饑餓組),加入自噬抑製劑3-甲基腺嘌呤(3-MA)培養(3-MA 組),採用酶聯免疫吸附測定法(ELISA)檢測細胞上清乙型肝炎錶麵抗原(HBsAg)和乙型肝炎 e 抗原(HBeAg)的含量。結果轉染 HBV WT 質粒的細胞內自噬熒光顆粒較對照組明顯增加髮生自噬的細胞比例分彆為13%和2%;饑餓組 HBsAg 含量(1.856±1.415)較對照組(1.531±0.944)升高,HBeAg 含量(0.533±0.391)較對照組(0.334±0.110)升高,差異具有統計學意義(P <0.05);自噬抑製劑組 HBsAg 含量(1.184±0.759)較饑餓組(1.856±1.415)降低,HBeAg 含量(0.306±0.130)較饑餓組(0.533±0.391)降低(P <0.05);蛋白印跡顯示,轉染HBV WT 質粒的細胞中 LC3蛋白錶達較 HBV X-組增高,且在饑餓條件下,HBc 蛋白的錶達增高。結論乙型肝炎病毒可誘導細胞自噬的髮生,且自噬可促進乙型肝炎病毒的複製。
목적:탐구자서여을형간염병독(hepatitis B virus,HBV)복제지간적상호관계。방법이용 HepG2세포,전염록색형광표기적미관상관단백경련3(GFP-LC3),분별재정상화기아조건하배양,령공전염 HBV WT 화GFP-LC3,정상조건배양,면역형광관찰세포자서;분별전염1.3 mer HBV 야생형질립(HBV WT)여 HBV 돌변형(HBV X-)질립,정상화기아량충조건하배양,단백인적검측자서상관단백 LC3화을형간염병독핵심단백(HBc)적표체;세포전염 HBV WT 후,분별정상조건배양(대조조),무혈청기아배양(기아조),가입자서억제제3-갑기선표령(3-MA)배양(3-MA 조),채용매련면역흡부측정법(ELISA)검측세포상청을형간염표면항원(HBsAg)화을형간염 e 항원(HBeAg)적함량。결과전염 HBV WT 질립적세포내자서형광과립교대조조명현증가발생자서적세포비례분별위13%화2%;기아조 HBsAg 함량(1.856±1.415)교대조조(1.531±0.944)승고,HBeAg 함량(0.533±0.391)교대조조(0.334±0.110)승고,차이구유통계학의의(P <0.05);자서억제제조 HBsAg 함량(1.184±0.759)교기아조(1.856±1.415)강저,HBeAg 함량(0.306±0.130)교기아조(0.533±0.391)강저(P <0.05);단백인적현시,전염HBV WT 질립적세포중 LC3단백표체교 HBV X-조증고,차재기아조건하,HBc 단백적표체증고。결론을형간염병독가유도세포자서적발생,차자서가촉진을형간염병독적복제。
Objective To investigate the interaction between autophagy and hepatitis B virus replication. Methods HepG2 cells were transfected with GFP-LC3,cultured under normal conditions or starvation.Another co-transfected with wild-type 1.3 mer HBV (HBV WT)and GFP-LC3,normal culture conditions.Autophagy was observed by immunofluorescence.The cells were transfected with HBV WT plasmid and mutant HBV (HBV X-) plasmid,then treated with nutrient starvation.Western blotting was used to analyze the expression of LC3 and HBc. The cells were transfected with HBV WT, cultured with normal conditions (control ),no serum (starvation), autophagy inhibitor (3-MA ), ELISA was used to detect HBsAg and HBeAg of cell supernatants.Results A significant increase of autophagy particles in HBV WT transfected cells (13%)was found compared with that in control group(2%);Titres of HBsAg (1.856±1.41 5)and HBeAg (0.533±0.391)of nutrient starvation group were higher than those of control group (1.531±0.944;0.334±0.1 10)(P <0.05);Titres of HBsAg (1.184±0.759)and HBeAg (0.306±0.130)of 3-MA group were lower than those of starvation group (1.856 ±1.415;0.533 ±0.391)(P <0.05);Western blotting analysis showed that the expression of LC3 in the HBV WT-transfected cells was higher than in mutant group.HBc expression increased in starvation condition.Conclusion Hepatitis B virus can induce cell autophagy.Further more,autophage can enhance HBV DNA replication.