Immune system cells communicate via cytokines 。Interleukin-1 Stimulates TH cells 。Interleukin-2 Activates TH,B,Tc,and NK cells 。Interleukin-12 Differentiation of CD4 cells 。y-Interferon Increase activity of macrophages Chemokines Cause leukocytes to move to an infection
• Interleukin-1 Stimulates TH cells • Interleukin-2 Activates TH, B, TC, and NK cells • Interleukin-12 Differentiation of CD4 cells • -Interferon Increase activity of macrophages • Chemokines Cause leukocytes to move to an infection Immune system cells communicate via cytokines
Cell-Mediated Immunity Specialized lymphocytes,mostly T cells,respond to intracellular Ags After differentiating in the thymus,T cells migrate to lymphoid tissue T cells differentiate into effector T cells when stimulated by an Ag Some effector T cells become memory cells
• Specialized lymphocytes, mostly T cells, respond to intracellular Ags • After differentiating in the thymus, T cells migrate to lymphoid tissue • T cells differentiate into effector T cells when stimulated by an Ag • Some effector T cells become memory cells Cell-Mediated Immunity