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| Reference : Contribution of MX dynamin, oligoadenylate synthetase, and protein kinase R to anti-para... |
| Scientific journals : Article | |||
| Life sciences : Veterinary medicine & animal health | |||
| http://hdl.handle.net/2268/33538 | |||
| Contribution of MX dynamin, oligoadenylate synthetase, and protein kinase R to anti-paramyxovirus activity of type-1 interferons in vitro | |
| English | |
| Leroy, M. [ > > ] | |
Baise, Etienne  [Université de Liège - ULg > Département des sciences de la vie > Macromolécules biologiques >] | |
| Pire, G. [ > > ] | |
| Desmecht, Daniel [Université de Liège - ULg > Département de morphologie et pathologie > Pathologie spéciale et autopsies >] | |
| 2007 | |
| American Journal of Veterinary Research | |
| American Veterinary Medical Association | |
| 68 | |
| 988-994 | |
| International | |
| 0002-9645 | |
| Schaumburg | |
| IL | |
| [en] OBJECTIVE: To determine the contribution of MX dynamin, oligoadenylate synthetase (OAS), and double-stranded RNA-dependent protein kinase R (PKR) to the antiviral effects of type 1 interferons (IFNs) against bovine parainfluenza-3 virus (PI-3V) infection of Vero cells. SAMPLE POPULATION: Vero cell cultures. PROCEDURES: PI-3V yield was first compared between control and transfected type 1 IFNs-incompetent Vero cells expressing recombinant OAS or MX proteins. Afterwards, phosphorylation of eukaryotic initiation factor 2 alpha (eIF2alpha) was used to scale the degree of PKR activation upon infection of Vero cells by PI-3V. RESULTS: Overexpression of OAS did not result in significantly decreased viral replication. Phosphorylated eIF2alpha forms, the hallmark of PKR activation, were not increased in IFNalpha-primed infected Vero cells. Although human MXA contributed to partial blockade of replication of bovine PI-3V, the antiviral effect was not as strong as that of IFNalpha. CONCLUSIONS AND CLINICAL RELEVANCE: The powerful anti-Paramyxovirus activity of type 1 IFNs is mediated by noncanonic pathways. | |
| Researchers ; Professionals | |
| http://hdl.handle.net/2268/33538 |
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