Inhibitory effects of small interference RNA (siRNA) on herpes simplex virus type 2 / 中华皮肤科杂志
Chinese Journal of Dermatology
;
(12): 772-775, 2011.
Article
in Chinese
| WPRIM
| ID: wpr-420877
ABSTRACT
ObjectiveTo investigate the antiviral effect of siRNA on herpes simplex virus type 2 (HSV-2) in vitro.MethodsDifferent siRNA duplexes targeting HSV-2 VP16 and DNA polymerase genes were designed and chemically synthesized.The antiviral effect of siRNA duplexes was evaluated by virus yield reduction assay.In detail,Vero cells cultured in 24-well plates were transfected with different siRNAs 4 hours before(preventive effect experiment) or 1 hour after(therapeutic effect experiment) the inoculation with HSV-2(0.02 to 0.05 plaque forming unit/cell).After additional culture for 40 to 48 hours,the expression of target genes in Vero cells was measured by real-time quantitative reverse transcription(RT)-PCR.Results Both the siRNA duplex VP2-1 targeting HSV-2 VP16 and DP2-1 targeting DNA polymerase gene resulted in a remarkable decrease in viral titer by about 1 log10 in both the preventive and therapeutic effect experiment.As the preventive effect experiment showed,the expression of HSV-2 VP16 mRNA was decreased markedly by 58.6% and 79.5% by VP2-1,respectively,and that of HSV-2 DNA polymerase mRNA by 59.8%and 77.4% by DP2-1,respectively,at 6 and 12 hours after the infection.ConclusionsThe siRNA duplexes targeting HSV-2 VP16 and DNA polymerase genes could inhibit the proliferation of HSV-2.Hence,HSV-2 VP16 and DNA polymerase genes may serve as the target genes of RNA interference to inhibit HSV-2 replication.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Dermatology
Year:
2011
Type:
Article
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