[Inhibition of hepatitis B virus replication by RNA interference in vitro].

Objective: To design pSilencer3.1-H1hygro plasmid expressing short interfering RNAs (siRNA) that targets HBV core gene region, and to evaluate inhibitory effect of this siRNA on HBV in vitro.

Methods: HepG2 2.2.15 was used as target cells. The plasmid and liposome metafectene were cotransfected into the cultured cells, HBV DNA were analyzed by fluorogenic quantitative PCR (FQ-PCR), HBV C-mRNA was detected by semi-quantitative RT-PCR.

Results: The plasmid expressing siRNA was successfully constructed. The two constructed siRNAs could effectively inhibit HBV replication, and their inhibitive effect on HBV was dose-dependent.

Conclusion: These results showed that siRNA could substantially inhibit HBV replication in the infected cells