When macrophages were pretreated with low doses of IFN-gamma and then stimulated with IFN-alpha , clearly enhanced formation of specific transcription factor complexes was detected .
when macrophages were pretreated with low doses of ifn-gamma and then stimulated with ifn-alpha , clearly enhanced formation of specific transcription factor complexes was detected .
O B-cell_type O O O O O O B-protein_molecule O O O O B-protein_molecule O O O O O O B-protein_family_or_group I-protein_family_or_group O O O O