Abstract
The effects of double combinations of enterovirus (EV) replication inhibitors against Coxsackieviruses B1 (neurotropic Connecticut-5 strain) and B3 (cardiotropic Woodruff and neurotropic Nancy strains) were tested in cell culture experiments. Compounds with different mechanisms of action were studied: pleconaril, guanidine.HCl, MDL-860 and oxoglaucine. A three-dimensional method was applied for determining the character of the combined effect. The study determined several synergistic double combinations: guanidine.HCL + pleconaril or MDL-860 against Coxsackievirus B1; MDL-860 + each of the other EV replication inhibitors and guanidine.HCl + pleconaril against the cardiotropic Woodruff strain of Coxsackievirus B3; MDL-860 + oxoglaucine against the neurotropic Nancy strain of Coxsackievirus B3. No increased cytotoxicity was manifested in any of the tested double combinations. Keywords: antivirals; combination activity; Coxsackieviruses.
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