IFN-alpha gene therapy for woodchuck hepatitis with adeno-associated virus: differences in duration of gene expression and antiviral activity using intraportal or intramuscular routes
| العنوان: | IFN-alpha gene therapy for woodchuck hepatitis with adeno-associated virus: differences in duration of gene expression and antiviral activity using intraportal or intramuscular routes |
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| المؤلفون: | Berraondo, P. (Pedro), Ochoa, L. (Laura), Crettaz, J. (Julien), Rotellar, F. (Fernando), Vales, A. (África), Martinez-Anso, E. (Eduardo), Zaratiegui, M. (Mikel), Ruiz, J. (Juan), González-Aseguinolaza, G. (Gloria), Prieto, J. (Jesús) |
| المصدر: | Dadun. Depósito Académico Digital de la Universidad de Navarra instname |
| بيانات النشر: | Nature Publishing Group, 2005. |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | Marmota/virology, viruses, Interferon-alpha/genetics, Dependovirus, Hepatitis B/therapy |
| الوصف: | Gene delivery of IFN-alpha to the liver may represent an interesting strategy to maximize its antiviral efficacy and reduce side effects. We used a recombinant adeno-associated virus (AAV) encoding woodchuck IFN-alpha (AAV-IFN) to treat animals with chronic woodchuck hepatitis virus infection. The vector was given by intraportal or intramuscular route. Long-term transgene expression was detected after intraportal administration of an AAV encoding luciferase. In contrast, in the majority of the animals that received AAV-IFN through the portal vein, the expression of IFN-alpha was transient (30-40 days) and was associated with a significant but transient decrease in viral load. One animal, in which hepatic production of IFN-alpha persisted at high levels, died because of bone marrow toxicity. The disappearance of IFN-alpha expression correlated with the disappearance of AAV genomes from the liver. Intramuscular administration of AAV-IFN resulted in prolonged but fluctuating expression of the cytokine with no significant antiviral effect. In summary, this report shows that long-term expression of IFN-alpha in muscle is feasible but higher interferon levels might be needed to control viral replication. On the other hand, IFN-alpha gene delivery to the liver using an AAV vector induces a significant but transient antiviral effect in the woodchuck model. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6892686032ebee40000bb7d55ddcf40f https://hdl.handle.net/10171/20332 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.dedup.wf.001..6892686032ebee40000bb7d55ddcf40f |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |