| Assay Method Information | |
| | BVDV antiviral and plaque assays |
| Description: | To evaluate antiviral activity against BVDV, a single cycle virus yield reduction assay was performed in the presence of from 0.16 μM to 100 μM through 5-fold dilution. Specifically, 2×105 MDBK cells/well were plated in 24 well plates. Twenty four hours later, the cells were infected with BVDV at multiplicity of infection (MOI) of 0.5 PFU/cell in 100 uL complete media. After adsorption for 1 hour at 37° C., the inoculum was removed, and cells were washed with media before media containing vehicle or from 0.16 μM to 100 μM through 5-fold dilution of test compound was added. At 22 hours post infection, both cells and media were collected and freeze-thawed three times before the virus was tittered. For BVDV virus, titer determination, 10−2, 10−3, 10−4 dilutions of virus were inoculated onto MDBK cells as described previously. After absorption and washing the cells were overlaid with medium containing methylcellulose or soft agar and incubated at 37° C. for 3 days or until plaques were visible. Plaques were counted directly under the microscope or after staining with crystal violet in 70% methanol for 15 minutes. |
| Affinity data for this assay | |
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