after culture for 24 h with supernatant factors , normally membrane igm negative 70z /3 cells are induced to synthesize light chain and become high level membrane igm expressors . the cytokine ( s ) responsible for inducing 70z /3 cells to differentiate is different from interleukin-2 ( il-2 ) , b-cell growth factor ( bcgf ) , colony-stimulating factor ( csf ) i and ii , but one of the cytokines is either very similar or identical to interleukin-1 ( il-1 ) .
C0007603
membrane
C0007634
cells