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How do helper T cells activate cytotoxic t cells?

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How do helper T cells activate cytotoxic t cells?

Cytotoxic T Cells:

Cytotoxic T cells are important for defending against virus infections and cancer. These T cells are able to directly recognize and kill virus infected and cancerous cells. Importantly, they can retain memory, so if the virus or cancer ever returns, they can respond quickly and immediately neutralize the threat.

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Helper T cells do not directly activated cytotoxic T cells. Instead, they help the cytotoxic T cells to become activated and do their job (hence the...

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Helper T Cells: Definition & Function

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Chapter 17 / Lesson 23
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White blood cells are important for the immune response in humans. These cells come in many forms, and each type has a particular function in the overall process of immunity. This lesson addresses one of those cell types: the helper T cell.


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