our data suggest ( a ) that poor cell proliferation of several tumors in vitro may result from the reaction of polyamines ( from cells ) and pao ( from serum ) , ( b ) that this can be easily tested by means of a specific pao inhibitor , and ( c ) that the growth conditions can be optimized by adding nontoxic doses of the enzyme inhibitor or by exchanging fcs for another serum .
C0596290
cell proliferation
C0007634
cells