addition of the growth-promoting agents phorbol esters , vasopressin , platelet-derived growth factor or fresh serum to quiescent cultures of swiss 3t3 cells causes a significant increase in the uptake of 5,5-dimethyl oxazolidine-2-4-dione ( dmo ) , a sensitive measure of intracellular ph .
C0018284
growth
C0032200
platelet-derived growth factor