immunity class
4.The results demonstrated that the bladder cancer vaccine (BTT 739/IFN?γ) autosecreting IFN?γ has been established and the expression of MHC class I antigens has been increased in the BTT 739/IFN?γ cell. It has been demonstrated that IFN?γ gene?transfected tumor vaccine decreased apparently the tumoriginicity and could induce the specific antitumor immunity which seems to be mediated by CD?+?8 effector T cells.

