Fig. 4. Effect of TLR3 activation on HSV-1 infection.
Human primary astrocytes were treated with or without PolyI:C as indicated concentrations for 24h prior to HSV-1 infection. HSV-1 replication was quantified at 96h postinfection. (A) Intracellular HSV-1 gD gene expression was measured using GAPDH as an internal standard and expressed as ratio to GAPDH expression. (B) Extracellular HSV-1 gD gene expression was examined by using serial dilutions of HSV-1 gD standards with known copy numbers. All value is the mean ± SD of three independent experiments (*, p<0.05; **, p<0.01).