the b-cell origin of the leukemic cells was documented by the presence of light-chain-restricted monoclonal surface immunoglobulin , reactivity with various monoclonal anti-b-cell reagents , presence of ia-like antigens , their capability to synthesize intracytoplasmic immunoglobulin on exposure to phorbol ester tpa , their lack of response to t-cell mitogen pha , and their inability to help or suppress the allogeneic b-cell response upon pwm stimulation .
C0021038
light-chain
C0021027
immunoglobulin