IFNB1 and neoplasm: There was a significantly higher amount of E7-specific CD8 +T cells in mice treated with Alb-IFNβ and E7 compared with all other treatment conditions in the TC-1 tumor-bearing mice, indicating potent expansion of E7-specific CD8 +T cells following coadministration with Alb-IFNβ with E7 antigen (figure 5A–B).