Antiviral Activity of Isatis indigotica Extract and Its Derived Indirubin against Japanese Encephalitis Virus
Figure 1
Inhibition of virus yield by I. indigotica extract, indigo and indirubin. HL-CZ cells were infected with JEV at a MOI of 0.5 at the same time as treatment with serial dilution of I. indigotica extracts (a) indigo and indirubin (b). Cultured supernatants in infected cells were harvested at 24 and 48 h after infection. Virus yield was performed as described in plaque assay.
