What role do Helper T Cells play in the immune response?

Helper T cells play a crucial role in the immune response primarily by activating other immune cells. When they recognize antigens presented by antigen-presenting cells, such as dendritic cells or macrophages, they release cytokines that stimulate the proliferation and differentiation of various immune cells, including B cells and cytotoxic T cells. This activation is essential for orchestrating an effective immune response, as it helps to enhance the overall activity of the immune system against infections.

By activating B cells, Helper T cells facilitate the production of antibodies that can neutralize pathogens. Additionally, by stimulating cytotoxic T cells, they enhance the ability of the immune system to directly destroy infected or cancerous cells. Therefore, their role as activators is vital for ensuring that the immune response is robust and well-coordinated.