culturing of day-35 c. neoformans-sensitized t-cells in the presence of homologous antigen ( cnef ) but not in the presence of heterologous antigen ( purified protein derivative or 2 , 4-dinitro-1-fluorobenzene ) induced the production of migration inhibition factor , thus indicating that lymphocytes from c. neoformans-injected mice were specifically sensitized to cnef antigen .
C0003333
heterologous antigen
C0003320
antigen