When macrophages bind antigens, they secrete ____ to attract more phagocytic cells.
A) more antigens
B) MHC
C) cytokines
D) antibodies
E) complement

Question

When macrophages bind antigens, they secrete ____ to attract more phagocytic cells.​
A) ​more antigens
B) ​MHC
C) ​cytokines
D) ​antibodies
E) ​complement

Quizplus · Accepted Answer

Cytokines are signaling proteins that are secreted by cells of the immune system, such as macrophages, to modulate the immune response. When macrophages bind antigens, they release cytokines to signal and attract more phagocytic cells to the site of infection or inflammation.

When Macrophages Bind Antigens, They Secrete ____ to Attract More