Final answer:
Cytokines stimulate dendritic cells to produce antigens, initiating T cell development and macrophage activation, integral to the body's immune response.
Step-by-step explanation:
Some cytokines stimulate dendritic cells to produce antigens which encourages T cell development and thereby macrophage activation. Dendritic cells act as professional antigen-presenting cells, processing and presenting antigens to T cells, which then become activated. The interaction with T cells results in the release of cytokines that serve to enhance the immune response, such as improving the phagocytic capabilities of macrophages and stimulating B cells to differentiate into antibody-secreting plasma cells. This integrated response is crucial for coordinating the body's defense against pathogens.