IL-12 production by the DCs transduced with AdVIL-12. DCs and AdVIL-12 were incubated together at different time intervals (0 h, 12 h, 24 h, 48 h, 72 h, 96 h). Supernatant was collected and tested for mIL-12 by ELISA, with nontransduced DCs as control. Data is representative of two independent experiments, with a given as mean ± SE.