Effector Mechanisms Mechanisms that are used by the immune system to eliminate pathogens(or other substances)from the body Cellular effector mechanisms ■Activated T cells 。Natural killer cells Humoral effector mechanisms (antibody) Neutralization Opsonization Complement activation Antibody-dependent cell-mediated cytotoxicity (ADCC)Effector Mechanisms ◼ Mechanisms that are used by the immune system to eliminate pathogens (or other substances) from the body ◼ Cellular effector mechanisms ◼ Activated T cells ◼ Natural killer cells ◼ Humoral effector mechanisms (antibody) ◼ Neutralization ◼ Opsonization ◼ Complement activation ◼ Antibody-dependent cell-mediated cytotoxicity (ADCC)