Furthermore both childrens' T cells were unable to produce the cytokines IL-2 , interferon-gamma ( IFN-gamma ) , IL-4 and tumor necrosis factor-alpha ( TNF-alpha ) .
furthermore both childrens' t cells were unable to produce the cytokines il-2 , interferon-gamma ( ifn-gamma ) , il-4 and tumor necrosis factor-alpha ( tnf-alpha ) .
O O O B-cell_type I-cell_type O O O O O B-protein_family_or_group B-protein_molecule O B-protein_molecule O B-protein_molecule O O B-protein_molecule O B-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O