Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6142930 | Virus Research | 2013 | 5 Pages |
Abstract
To investigate whether cytoplasmic RNA helicase A (RHA) influences the expression and replication of classical swine fever virus (CSFV), an siRNA molecule targeted to RHA was transfected into PK-15 cells. The siRNA was found to reduce cytoplasmic RHA. In CSFV subgenomic replicon transfected cells, incubation with the siRNAs negatively impacted viral NS3 and RNA production. In the CSFV infected cells, treatment with the siRNA resulted in a significant reduction of viral replication by 65-70%. Furthermore, affinity chromatography and UV-crosslinking assays revealed that RHA can bind the 5â² and 3â² terminal region of CSFV 3â²-untranslated region (UTR), the 5â² terminal region and domain III of CSFV 5â² UTR. All these regions are important for viral replication and translation. These data showed that RHA is involved in the expression and replication of CSFV and might participate in modulation of RNA synthesis, replication and translation of CSFV by binding these regions.
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Authors
Chun Sheng, Yuting Yao, Bing Chen, Yujing Wang, Jun Chen, Ming Xiao,