Activation of T cells is initiated by the recognition of antigen on antigen presenting cells to exert the effector functions in immune and inflammatory responses .
activation of t cells is initiated by the recognition of antigen on antigen presenting cells to exert the effector functions in immune and inflammatory responses .
O O B-cell_type I-cell_type O O O O O O B-protein_N/A O B-cell_type I-cell_type I-cell_type O O O B-other_name I-other_name O B-other_name O B-other_name I-other_name O