Activation of helper T cells by an antigen will directly activate

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Helper T cells, as their name suggests, help to activate other cells in the immune system. When a helper T cell is activated by an antigen, it releases cytokines that help to activate B cells and cytotoxic T cells. Therefore, the activation of helper T cells by an antigen directly activates B cells and cytotoxic T cells. Memory helper T cells are not directly activated, but rather they are formed following an initial immune response and remain in the body to quickly respond to a subsequent encounter with the same antigen.

Activation of Helper T Cells by an Antigen Will Directly