exposure of cultured chromaffin cells to cholera toxin ( ct ) , forskolin ( f ) , isobutylmethylxanthine ( ibmx ) , 8-bromo-cyclic amp ( 8-br-camp ) or dibutyryl cyclic amp ( dbcamp ) increases vip and met-enkephalin biosynthesis as measured by an increase in total ( cellular + secreted ) vip and met-enkephalin in treated versus untreated cells .
C1327616
secreted
C0007634
cells