the differentiation was also markedly enhanced by il 4 as measured by quantitation of igm secretion both at the population ( enzyme-linked immunosorbent assay analyses of the supernatant ) and single-cell level ( enzyme-linked immunospot technique ) , by morphological examination of the maturation stage and flow cytometric analysis of differentiation-associated surface antigens ( cd11c , fmc7 , pca-1 and cd38 ) .
C0007589
differentiation
C0007634
cell