addition of purified autologous or allogeneic t4 cells from normal donors to purified largely leukemic b cells from patients with cll resulted in production of very small amounts of iga in 4 of 15 patients ( 10.6 +/- 6.3 micrograms/dl vs 154.7 +/- 35.8 micrograms/dl produced by t4 and b cells from normal donors ; n = 6 ) , but did not support igg synthesis and secretion .
C0004561
b cells
C0023434
cll