The helper T cells assist the immune process by helping other cells in the immune system to achieve an efficient immune response. In antibody- mediated immunity, the helper T cell helps recognize the MHC molecule and the epitope on the antigen- presenting cell surface, and it assists the interaction between the B cell and the macrophage. Thus, the helper T cell is involved in antibody- mediated immunity. In addition, helper T cells are involved in the activation of cytotoxic T cells. These cells are critical to both antibody mediated and cell- mediated immunity.
