the treatment of the cells by dibutyryl cyclic amp , prostaglandin e ( 1 ) , or bl191 ( phosphodiesterase inhibitor ) induced the biochemical differentiation in terms of catecholamine and cyclic amp contents , but failed to promote typical morphological differentiations including the extension of process or the significant promotion of adherence onto the flask surface .
C0007634
the
C0007589
differentiations