DC maturation and cytokine production of CTL after incubation with H-1PV and chemotherapy-treated SK29-Mel cells. A: Activation of DC by SK29-Mel cells treated with H-1PV (MOI = 20 PFU/cell) and/or chemotherapeutic agents. Immature DC were incubated for 2 days with different lysates as indicated. The maturation marker CD86 was measured via FACScan. B: CTL IL-6-production. CTL were co-cultured with TCL-incubated DC for 1 day in a 96-well plate. IL-6 levels were determined using ELISA.