tokens: IFN-gamma-primed lung fibroblasts costimulate T lymphocyte proliferation utilizing CD40 , but not the well-studied costimulatory molecules B7-1 and B7-2 .
folded_tokens: ifn-gamma-primed lung fibroblasts costimulate t lymphocyte proliferation utilizing cd40 , but not the well-studied costimulatory molecules b7-1 and b7-2 .
labels: B-cell_line I-cell_line B-cell_type O B-other_name I-other_name I-other_name O B-protein_molecule O O O O O B-protein_family_or_group I-protein_family_or_group B-protein_molecule O B-protein_molecule O