What is a primary function of Helper T Cells?

Helper T cells play a crucial role in the adaptive immune system, primarily by activating other immune cells. When a Helper T cell recognizes a specific antigen presented by an antigen-presenting cell (APC), it becomes activated and secretes cytokines. These signaling molecules influence the activity of various immune cells, including B cells and cytotoxic T cells.

One of the most significant functions of Helper T cells is their ability to activate B cells. When activated, B cells can undergo clonal expansion and differentiation into plasma cells, which are responsible for producing antibodies specific to the antigens that triggered the immune response. This antibody production is essential for neutralizing pathogens and marking them for destruction by other immune components.

While Helper T cells support the immune system in various ways, their primary function related to this question is the activation of B cells, leading to increased antibody production and a more effective immune response against pathogens.