when b cells were activated for 3 days with anti-mu antibody , followed by the addition of r-il-2 or clonal t-cell sn containing bcgf for an additional 3 days , r-il-2 showed the ability to maintain b-cell proliferation , whereas clonal sn containing bcgf had virtually no effect .
C0021756
il-2
C1155008
b-cell proliferation