FIGURE 4.
Resveratrol suppresses N1L-deleted VACV replication. (A) Deletion of N1L gene from recombinant virus was confirmed by PCR with two pairs of primer specific for C11R gene (positive control) and N1L gene, respectively. (B) HeLa cells were infected with wild type and N1L-deleted VACV at an MOI of 1. Virus growth was determined by a plaque assay. (C) HeLa cells were infected with N1L-deleted VACV at an MOI of 1 in the presence or absence of resveratrol (50 μM). Virus titers were determined by a plaque assay at 24 hpi. The asterisk indicates significant difference (P < 0.05). The error bar indicates standard deviation.