Osmosis video - Cell-mediated immunity of natural killer and CD8 cells

https://osmosis.org/learn/Cell-mediatedimmunityofnaturalkillerandCD8_cells

Natural killer cells are innate lymphocytes that play a critical role in the early response to viral infection and cancer. They detect virus-infected cells and eliminate them before they can spread the infection. CD8 cells are cytotoxic T lymphocytes that recognize and kill infected or mutated cells. CD8 cells also secrete cytokines that stimulate the immune response. Both natural killer cells and CD8 cells are essential in protecting against cancer and infections.