(A) WT and three IL16 KO single clones were stimulated with (+) or without (-) anti-mouse Ig(G+M) (5 μg/mL) for 48 hr, respectively. Immunoblot analyses were performed with the indicated antibodies. GAPDH was used as a loading control. (B) WT and IL16 KO cells (clone E6) were stimulated with (+) or without (-) anti-mouse Ig(G+M) (5 μg/mL) for 48 hr. Immunoblot analyses were performed with the indicated antibodies. GAPDH was used as a loading control. MHV68 viral genome was determined by qPCR with the primers specific to the MHV68 ORF50 coding region. The relative copy of the MHV68 viral genome was normalized to GAPDH in each sample. (C) The mRNA expression of MHV68 viral gene ORF73, ORF50, ORF59, and ORF25 was determined by qRT-PCR. The relative RNA amount was normalized to GAPDH in each sample. Histograms represented the mean of three independent biological replicates ±SD, p value was determined by two-tailed unpaired t-test, p≤ 0.05 represents significance.