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Title

Flavonoids: potent inhibitors of poliovirus RNA synthesis

AuthorsGonzález, M. E.; Martínez-Abarca, Francisco; Carrasco, Luís
Issue Date1990
PublisherBlackwell Publishing
CitationAntiviral Chemistry and Chemotherapy 1: 203- 209 (1990)
AbstractSome naturally occurring flavonoids, such as 3-methyl quercetin and Ro-090179, show potent anti-picornavirus activity. They inhibit poliovirus replication at concentrations 100-fold or 1000-fold lower than hy- droxybenzyl-benzimidazole (HBB) and guanidine, re- spectively. Ro-090179 selectively blocks viral RNA synthesis in poliovirus-infected HeLa cells more strongly than 3-methyl quercetin and is therefore the most potent and selective inhibitor of poliovirus RNA synthesisdescribed until now. In addition, Ro-090179 discriminates in its inhibition between plus and minus-stranded RNA synthesis. Thus, analysis of the viral RNA made in poliovirus-infected cells when the compound is added late in the infection cycle, indi- cates that the synthesis of genomic RNA is potently blocked, whereas minus-stranded RNA synthesis is not inhibited. These findings make Ro-090179 a valu- able compound for obtaining insight into the molecular mechanisms of poliovirus RNA replication
URIhttp://hdl.handle.net/10261/158999
Identifiersissn: 0956-3202
Appears in Collections:(CBM) Artículos
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