three t-cell lines with different growth requirements were used as model systems : insulin-specific bk-bi-1.2 cells express il-2r transiently after antigenic restimulation , ovalbumin-reactive bk-ova-1r cells express il-2r permanently , and bk-bi-2.6.c6 cells bear il-2r constitutively but do not exhibit antigen reactivity .
C1515126
t-cell
C0007634
cells