the camp-enhancing agents , n6-2'-o-dibutyryl-adenosine 3',5'-cyclic monophosphate ( dbcamp ) , 3-isobutyl-1-methyl-xanthine ( ibmx ) , and cholera toxin ( ct ) were then applied to da-1er cells to see whether they could induce cell growth , but none of them was effective .
C0007634
cells
C0007595
cell growth