Inhibition of autophagy in human NCI-H3122 cells assessed as increase in punctate LC3 expression at 25 to 50 uM after 6 hrs by fluorescence microscopic analysis
IC50 for antiviral activity against SARS-CoV-2 in the Vero E6 cell line at 48 h by immunofluorescence-based assay (detecting the viral NP protein in the nucleus of the Vero E6 cells)., IC50 = 0.67608 μM.
Antiviral efficacy against SARS-CoV-2 (strain BavPat1) in Vero E6 cells assessed by inhibition of viral RNA replication measured by RT-PCR after 2 days, EC50 = 4.17 μM.
IC50 determination at MOI 0.004 using CellTiter- Glo (CTG) assay, performed 3 days post-infection in SARS-CoV-2 infected Vero E6 cells, IC50 = 9.21 μM.
IC50 determination at MOI 0.01 using CellTiter- Glo (CTG) assay, performed 3 days post-infection in SARS-CoV-2 infected Vero E6 cells, IC50 = 11.17 μM.
Antiviral efficacy against SARS-CoV-2 (strain BavPat1) in Vero E6 cells assessed by inhibition of viral RNA replication measured by RT-PCR after 2 days, EC90 = 25.49 μM.
Antagonist activity at human TLR9 expressed in HEK-Blue cells assessed as reduction in CpGB-induced NF-kappaB levels after 24 hrs by spectrophotometric analysis, IC50 = 0.11 μM.
Antagonist activity at human TLR7 expressed in HEK-Blue cells assessed as reduction in CL264-induced NF-kappaB levels after 24 hrs by spectrophotometric analysis, IC50 = 0.8 μM.
IC90 for antiviral activity against SARS-CoV-2 in the Vero E6 cell line by measuring infectious viral titer of supernatent from compound-treated Vero E6 cells by Median Tissue Culture Infectious Dose (TCID)50 by the method of Reed and Muench, IC90 = 5.78 μM.