Activation of T helper cells results in coordinate expression of a number of cytokines involved in differentiation , proliferation and activation of the haematopoietic system .
activation of t helper cells results in coordinate expression of a number of cytokines involved in differentiation , proliferation and activation of the haematopoietic system .
O O B-cell_type I-cell_type I-cell_type O O O O O O O O B-protein_family_or_group O O B-other_name O B-other_name O O O O B-other_name I-other_name O