Fluorescence-based antiviral assay for the evaluation of compounds against vaccinia virus, varicella zoster virus and human cytomegalovirus
- 作者：Fabiana Dal Pozzo ; Graciela Andrei ; Dirk Daelemans ; Michael Winkler ; Jacques Piette ; Erik De Clercq ; Robert Snoeck
- 关键词：Vaccinia virus ; Varicella zoster virus ; Human cytomegalovirus ; GFP-recombinant virus ; Antiviral assay ; Fluorescence-based antiviral assay
- 刊名：Journal of Virological Methods
- 出版年：2008
- 期刊代码：180_01660934
- 类别：med
- 出版时间：July 2008
- 卷：151
- 期：1
- 页码：66-73
- 文件大小：1282 K
摘要
Recombinant vaccinia virus (VACV), varicella zoster virus (VZV) and two human cytomegaloviruses (HCMV) expressing the green fluorescent protein (GFP) and the enhanced yellow fluorescent protein (EYFP) were used to develop a fluorescence-based assay for testing antiviral compounds. Infection of human embryonic lung fibroblasts (HEL) with the different recombinant viruses produced stable and detectable amount of GFP and EYFP signal as quantitated by automated fluorometry. The sensitivity of the recombinant viruses to a panel of antiviral drugs was measured and the fluorescence-based assay was compared to the cytopathic effect reduction assay (CPE-RA) in case of VACV and HCMV or to the plaque reduction assay (PRA) in case of VZV. The 50%inhibitory concentration (IC50) values for reference anti-pox and anti-herpesvirus compounds were comparable to those determined by CPE-RA or PRA assays. Furthermore the fluorimetric data could be confirmed by a flow cytometry assay. GFP- and EYFP-recombinant viruses proved to be a convenient tool for the evaluation of antiviral agents.