Interferon-gamma ( IFN-gamma ) is a key cytokine of T lymphocytes with major regulatory functions in the immune system .
interferon-gamma ( ifn-gamma ) is a key cytokine of t lymphocytes with major regulatory functions in the immune system .
O O B-protein_molecule O O O O O O B-cell_type I-cell_type O O O O O O B-body_part I-body_part O