中文摘要：

目的 探讨热休克蛋白B1（heat shock protein B1,HSPB1）对乙型肝炎病毒（HBV）复制的影响。方法采用Western blot检测正常肝细胞系（HepRG）和HBV稳定复制细胞系（HepAD38和HepG2.2.15）中HSPB1的蛋白水平。在HBV稳定复制细胞系（HepAD38和HepG2.2.15）中转染pCMV6HSPB1质粒及对照质粒，采用Western blot验证HSPB1过表达水平，实时荧光定量PCR和Southern blot检测HSPB1过表达对HBV复制中间体表达的影响；qRT-PCR检测HSPB1过表达对HBV 3.5 kb mRNA表达的影响；ELISA检测HSPB1过表达对HBV s抗原（HBsAg）和e抗原（HBeAg）分泌的影响。在肝癌细胞系Huh-7中共转染pCH9/3091和pCMV6-HSPB1质粒，采用Western blot验证HSPB1过表达水平，实时荧光定量PCR和Southern blot检测HSPB1过表达对瞬时转染的HBV复制中间体表达的影响。结果HSBP1在HepAD38和HepG2.2.15中的表达明显低于HepRG。HSPB1在HepAD38和HepG2.2.15细胞中成功过表达，在过表达HSPB1的HepAD38和HepG2.2.15细胞中HBV复制中间体水平以及3.5 kb mRNA水平均降低，细胞培养上清中HBsAg和HBeAg的分泌水平也降低。HSPB1在转染pCH9/3091的Huh-7细胞中成功过表达，HSPB1过表达抑制了瞬时表达的HBV的复制水平。结论 HSPB1可以抑制HBV复制。

英文摘要：

Objective To determine the effect of heat shock protein B1 （HSPB1） on the replication of hepatitis B virus （HBV）. Methods The expression level of HSPB1 in the normal liver cell line （HepRG） and HBV stable replication cell lines （HepAD38 and HepG2.2.15） was determined by Western blotting. Both HepAD38 cells and HepG2.2.15 cells were transfected with pCMV6-HSPB1 or control vector, and the over-expression efficiency of HSPB1 was confirmed by Western blotting. The effect of HSPB1 on HBV replicative intermediates was measured by real-time PCR and Southern blotting. The effect of HSPB1 on the HBV 3.5kb mRNA was determined by qRT-PCR. And the secretion levels of HBsAg and HBeAg in the cell culture medium were detected by ELISA. Finally, pCH9/3091 and pCMV6-HSPB1 were co-transfected in Huh-7 cells, and its efficiency was confirmed by Western blotting. The effect of HSPB1 on HBV replicative intermediates was measured by real-time PCR and Southern blotting. Results The expression level of HSPB1 was obviously decreased in HepAD38 cells and HepG2.2.15 cells when compared with HepRG cells. HBV replicative intermediates, 3.5kb mRNA level and the secretion levels of HBsAg and HBeAg were decreased in HepAD38 cells and HepG2.2.15 cells with HSPB1 over-expression. HSPB1 was over-expressed in the pCH9/3091-transfected Huh-7 cells, which inhibited the replication of HBV. Conclusion HSPB1 can inhibit HBV replication.