| Assay Method Information | |
| | The inhibition of HCMV replication by digitoxin |
| Description: | The effect of digitoxin analogs on HCMV replication was tested. HFFs were infected with pp28-luciferase HCMV and treated with the compounds (Table 2, FIG. 2A). EC50, CC50 and selectivity index (SI) calculated as CC50/EC50 were determined for each compound. The L-isomers had an improved anti-HCMV activity compared to the D-isomers. Within each stereoisomer, there was an inverse correlation between the sugar length and anti-HCMV activity; the longer the oligosaccharide chain, the less effective the compound was against HCMV replication. There was also decreased cytotoxicity in HFFs as the sugar length increased; however, the anti-HCMV activity was not a result of cytotoxicity as reflected by the selectivity index (SI). The compounds with the best SI were α-L rhamnose, α-L amicetose and mannose. Virus yield was determined for selected compounds (FIG. 2B), and a dose dependent effect on virus DNA yield was observed. |
| Affinity data for this assay | |
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