What role do T cells play in the immune response?

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T cells play a crucial role in the adaptive immune response, particularly in their interactions with B cells, which are responsible for producing antibodies. Although T cells do not produce antibodies directly, they provide essential "help" to B cells, which enhances the immune response against pathogens.

When a pathogen is detected, helper T cells (specifically CD4+ T cells) activate B cells by binding to antigens presented by B cells and releasing cytokines. This activation is vital for B cell maturation and proliferation, allowing B cells to undergo class switching and affinity maturation, ultimately leading to the production of specific antibodies for effective pathogen neutralization and elimination.

In addition to assisting B cells, T cells also have other important roles in the immune system, such as directly attacking infected cells through cytotoxic T cells (CD8+ T cells) and producing cytokines that help coordinate the overall immune response. However, the specific choice regarding the direct assistance to B cells accurately reflects one of their primary functions within the immune response.

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