Type I interferons and stromal cells stimulate apparently identical signaling pathways , leading to STAT-1 activation .
type i interferons and stromal cells stimulate apparently identical signaling pathways , leading to stat-1 activation .
B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-cell_type I-cell_type O O O O O O O O B-protein_molecule O O