Which of the following cells that participate in cell-mediated immunity are antigen specific and directly cytotoxic for target cells?

Question

Quizplus · Accepted Answer

Only CD8+ cytotoxic T cells are both antigen-specific and directly cytotoxic for target cells. Macrophages are involved in phagocytosis and presenting antigens to T cells. Th1 cells secrete cytokines that activate other immune cells but are not directly cytotoxic. Natural killer cells are non-specific and do not require prior antigen exposure to kill their targets.

Which of the Following Cells That Participate in Cell-Mediated Immunity