Figure 2. Antiviral activities of plasmids containing CpG ODNs in CIK cells.
(A) CIK cells were stimulated with PBS (control) or plasmids containing CpG ODNs and subsequently challenged with GCRV at 48 h post plasmids administration. The mRNA expression levels of VP4 were examined at 0, 24 and 48 h post-challenge. The EF1α gene was used as an internal control to normalize the cDNA template. mRNA levels of the target gene were normalized to those in CIK cells at 0 h. The p value was calculated by student's t-test between experimental and control groups (*, p ≤ 0.05, **, p ≤ 0.01). Error bars indicate SE (n = 3). Blank columns for 24 h and shadowy for 48 h. (B) Crystal violet staining of CIK cells after plasmids containing CpG ODNs stimulation and GCRV infection at 48 h post plasmids stimulation. Control group was treated with PBS and subsequently GCRV while mock group without any treatment.
