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Article in Chinese | WPRIM | ID: wpr-458738

ABSTRACT

Objective To construct lentivirus vectors carrying 16 short hairpin RNA (shRNA) expression cassettes targeting histone acetyltransferases and provide a powerful research approach to explore the mechanism of epigenetic genes in regulating hepatitis B virus (HBV).Methods Following the rule of short shRNA primer design,eight-pair primers (A ~ H )for each gene,which had stable interfering efficiency,were designed.The annealed primers were connected to the empty lentiviral vectors of shRNA for transformation.In order to confirm the positive clones,clones were analyzed by real-time polymerase chain reaction (RT-PCR ).Then, qualified plasmids were verified by enzyme digestion technology.Four shRNA lentivirus plasmids against the same gene were mixed to build lentivirus respectively.After the virus transfected into 293T cells for 48 and 72 hours,supernatants were collected to infect HepG2.2.15 cells.The percentage of fluorescent cells were observed and assessed by microscope 72 hours after infection.Results One hundred and twenty-eight lentiviral vectors of RNA interference (RNAi)library were constructed against 16 histone acetyltransferases and more than 80% of HepG2.2.15 cells were infected with lentivirus 72 hours after infection.Conclusions Sixteen shRNA lentivirus vectors against histone acetyltransferase are successfully constructed.Thus,a solid foundation for the study of the effect of human histone deacetylase on HBV replication is established.

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