Interactions between B cells and helper T cells stimulate the actions of killer T cells.

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B cells and helper T cells interact in a process known as cognate interaction, leading to the activation and proliferation of B cells and the differentiation of helper T cells into different subsets. These activated B cells then produce antibodies that activate complement and neutralize antigens, which can then be engulfed and destroyed by macrophages. In addition, interactions between B cells and activated helper T cells (typically Th2 cells) enhance the antibody production by B cells. The activated helper T cells also produce cytokines that induce inflammation and recruit other cells to the site of infection, including killer T cells that can destroy cells infected by viruses or intracellular bacteria. Therefore, interactions between B cells and helper T cells are crucial for the efficient immune response against pathogens.

Interactions Between B Cells and Helper T Cells Stimulate the Actions