Figure 3. Castration of male PSA/A2.1 mice augments PSA-specific cellular immune responses.
Castrated male mice were immunized with either vac-mTag or vac-PSA and antigen-specific CD8 responses were evaluated by ELISPOT and tetramer staining. Non-castrated male mice and female mice were used as controls. For splenocyte restimulation in vitro, bone marrow-derived DC were loaded with either H-2Kb restricted-, SV40 Tag-derived epitope IV (Tag-IV/DC) (A), with PSA (PSA/DC) (B) or with HLA-A2.1-restricted, PSA-derived epitopes (PSA3A/DC) (C) and (PSA3/DC) (D). IFN-γ-releasing CD8 T cells were revealed using an ELISPOT assay. Data shown as Mean ± SD, representative of one experiment with from 3 animals/group.