alexa [Study on the inhibition effect of siRNA on herpes simplex virus type 2 ICP4 gene].
Microbiology

Microbiology

Journal of Antivirals & Antiretrovirals

Author(s): Liu JF, Guan CP, Tang X, Xu AE

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Abstract OBJECTIVE: To explore the inhibition effect of RNA interference on the ICP4 expression and DNA replication of herpes simplex virus type 2 (HSV2). METHODS: Four pairs of siRNA targeted to HSV2 ICP4 gene and negative control siRNA were synthetized by chemical method, named as siRNA-1, siRNA-2, siRNA-3, siRNA-4 and siRNA-N respecticely. HSV2 HG52 was used to attack Vero cell after transfection overnight. Vero cell and supernatant were collected at 1d, 2d, 3d, 4d and 5d after virus attacking. Flurogenic quantitative reverse transcription polymerase chain reaction (FQ-RT-PCR)was used to detect the expression of HSV2 ICP4 mRNA, flurogenic quantitative polymerase chain reaction(FG-PCR) was used to detect the expression of HSV2 DNA and Western-Blot was used to detect the expression of HSV2 ICP4 protein. RESULTS: All the four pairs of siRNA could significantly inhibit the expression of HSV2 ICP4 mRNA and protein, especially siRNA-2. The above siRNAs could significantly decrease HSV2 DNA copy number,too. CONCLUSION: siRNAs targeted to HSV2 ICP4 gene could significantly inhibit expression of HSV2 ICP4 mRNA and protein, and decrease HSV2 DNA copy number, suggesting that siRNA can inhibit HSV2 DNA replication through silencing ICP4 gene.
This article was published in Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi and referenced in Journal of Antivirals & Antiretrovirals

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