In addition , dibutyryl cAMP inhibited cell growth in a dose-dependent manner , whereas histamine failed to affect proliferation and differentiation of U937 cells .
in addition , dibutyryl camp inhibited cell growth in a dose-dependent manner , whereas histamine failed to affect proliferation and differentiation of u937 cells .
O O O B-nucleotide I-nucleotide O O O O O O O O O B-other_organic_compound O O O O O O O B-cell_line I-cell_line O