although they neither proliferated nor secreted ig in vitro to g/m-csf , g-csf , m-csf , il-1 , il-1b , il-2 , or il-4 , proliferation without ig secretion ( stimulation index greater than or equal to 3.0 ) was induced to il-6 in 6 of 10 patients ( pts ) ;
C0021755
il-1
C0021753
il-1b