In vitroAntiviral Activity of Ribavirin against Picornaviruses

Autor: James A. North, Roland K. Robins, Byron K. Murray, Douglas O. Andersen
Rok vydání: 1992
Předmět:
Zdroj: Antiviral Chemistry and Chemotherapy. 3:361-370
ISSN: 2040-2066
DOI: 10.1177/095632029200300606
Popis: The in vitro antiviral activity of ribavirin (Rby; 1-β-D-ribof uranosyl-1,2,4-triazole-3-carboxamide) against selected members of the Picornaviridae is described. When antiviral activity was determined by reduction of infectious virus progeny, Rbv was active against human rhinovirus type 2 (HRV-2) and poliovirus type 1 (Polio-1) in both a drug concentration and multiplicity of infection-(MOI) dependent response. However, an antiviral activity rating assay based on the reductions of cellular cytopathic effects (CPE) indicated that Rbv was active against human rhinoviruses, but was less active against polioviruses. Prophylactic administration of Rbv significantly improved virus yield reduction, especially in Polio-1. SDS Polyacrylamide gel electrophoresis (SDS-PAGE) of HRV-2- and Polio-1-infected cell lysates demonstrated that Rbv inhibited the synthesis of viral-specific proteins. Although actinomycin D (Act D) did not significantly influence Picornavirus yields, when added concomitantly with Rbv, Act D reversed Rbv's antiviral effect.
Databáze: OpenAIRE