... wereinduced with the gp100 -in4 stimulation on the PBMCstaken from the patients (P1, P2, P3, and P4) after the vaccination. The PBMCs of P1 showed an incrementalincrease in the frequency of induced ... IFN-g-producingcells in association with the number of the vaccinations. In P2, a significant increase of the frequency of induc-tion of IFN-g-producing cells was observed during the Figure ... side of each panel. The arrowindicates the timing of each vaccine injection. In ELISPOT assay, to evaluate the characteristics of peptide-specific CTLs, PBMCs of the patients were stimulated in...