weakly lytic ctl harvested 6 to 7 days after previous stimulation with irradiated dba/2j spleen cells and conditioned medium from secondary mlc ( mlc sn ) could be reactivated to high antigen-specific lytic activity with highly purified gibbon il 2 or e. coli-produced human recombinant dna il 2 .
C0086418
human
C0021756
il 2