BDBM50366389 GENTAMICIN
BDBM50118510 FMS2-gentamicin C1 CHEMBL384757
FMS3-gentamicin C1 CHEMBL264831 BDBM50118508
SCH-9724 Uromycine BDBM50476074 Gentamicin
- Viral Plaque Reduction Assay African green monkey kidney BSC-1 cells were grown in Dulbecco's modified Eagle medium (DMEM) supplemented with 10% fetal bovine serum (FBS) (Gibco BRL Life Technologies, Gaithersburg, Md.) and 0.1% gentamicin antibiotic at 37° C. in a humidified 5% CO2 environment. Confluent BSC-1 cells were infected with vaccinia virus at an MOI of 0.005 in 48-well plate. The test compounds and control cidofovir were dissolved in DMSO and diluted with the medium. One hour post infection, 400 uL of the test compounds and control were added per well at concentrations ranging from 200 nM to 200 uM and incubated at 37° C. for 16 hours. A 5% solution of formaldehyde in PBS was used to fix the cells. After washing twice with PBS, the plate was stained with 0.2% crystal violet in 50% ethanol.
- Cytopathic Effect Assay with RSV A2 in HEp-2 Cells Test compounds were dissolved in DMSO and then prepared in eight half-log dilutions in MEM medium with 50 μg/mL gentamicin and 2% FBS (MA-104 cells only). Each dilution was added to 5 wells of a 96-well plate with 80-100% HEp-2 cells. Three wells of each dilution were infected with respiratory syncytial virus A2 (ATCC VR-1540) and two wells remained uninfected as toxicity controls. After maximum cytopathic effect (CPE) was observed microscopically in untreated virus control wells, plates were stained with neutral red dye for approximately 2 hours, then supernatant dye was removed and the incorporated dye was extracted in 50:50 Sorensen citrate buffer/ethanol and read on a spectrophotometer. Optical density values were normalized based on cell and virus controls, then the concentration of test compound required to inhibit CPE by 50% (EC50) was calculated by regression analysis. The reported EC50 value is the mean of at least two experiments.
- Cytopathic Effect Assay with RSV A2 in MA-104 Test compounds were dissolved in DMSO and then prepared in eight half-log dilutions in MEM medium with 50 μg/mL gentamicin and 2% FBS (MA-104 cells only). Each dilution was added to 5 wells of a 96-well plate with 80-100% MA-104 cells. Three wells of each dilution were infected with respiratory syncytial virus A2 (ATCC VR-1540) and two wells remained uninfected as toxicity controls. After maximum cytopathic effect (CPE) was observed microscopically in untreated virus control wells, plates were stained with neutral red dye for approximately 2 hours, then supernatant dye was removed and the incorporated dye was extracted in 50:50 Sorensen citrate buffer/ethanol and read on a spectrophotometer. Optical density values were normalized based on cell and virus controls, then the concentration of test compound required to inhibit CPE by 50% (EC50) was calculated by regression analysis. The reported EC50 value is the mean of at least two experiments.