mononuclear cells and b cells from peripheral blood were assayed for b-cell mitogenic responses to anti-ig mu chain antibodies or to staphylococcus aureus strain cowan i ( referred to as cowan i ) , and for differentiation to ig-secreting cells of igm , igg , and iga classes in the presence of cowan i and pokeweed mitogen or t-cell factor .
C0007589
differentiation
C0007634
cells