Natural (Non-Specific) Immunity - 4
•Four components of the system - continued
•3.Phagocytic/endocytic barriers:
•˜Endocytic action
•&various cells internalize (endocytose) and break down antigens
•˜Phagocytic action - see Figure 1-4 on page 11
•&internalization and digestion of antigen
•&cells that are phagocytic include:
•Lmonocytes - blood
•Lmacrophages - tissue
•Lneutrophils
•˜Natural killer cells
•&can destroy tumor cells using cytokines without antibody interaction