In innate immunity, destruction of tumor cells by secretion of perforins is a function of:
A)macrophages, which differentiate from monocytes
B)natural killer cells, a type of lymphocyte
C)Langerhans cells circulating in the blood
D)neutrophils, one of the granular WBCs

Question

Quizplus · Accepted Answer

Natural killer cells are a type of lymphocyte that can destroy tumor cells by secreting perforins, which create pores in the cell membranes of the target cells, leading to their lysis. Macrophages, neutrophils, and Langerhans cells are also involved in innate immunity, but their functions are different and do not include the secretion of perforins for the destruction of tumor cells.

In Innate Immunity, Destruction of Tumor Cells by Secretion of Perforins