Research on stress-induced apoptosis of natural killer cells and the alteration of their killing activity in mouse liver

Figure 1 Percentage of natural killer cells and macrophage-1⁺ natural killer cells in mouse liver and spleen after 24 h of restraint stress. A: Natural killer cells; B: Macrophage-1⁺ natural killer cells. NK: Natural killer; Mac-1: Macrophage-1.

Figure 2 The number of lymphocytes and of natural killer cells in mouse liver and spleen after 24 h of restraint stress. NK: Natural killer. ^aP < 0.05 vs control group.

Figure 3 Determination of macrophage-1⁺ and macrophage-1^- natural killer cells in mouse liver and spleen after 24 h of restraint stress. Mac-1⁺: Macrophage-1 positive; Mac-1^-: Macrophage-1 negative; NK: Natural killer. ^aP < 0.05 vs control group.

Figure 4 Apoptosis of natural killer cells after 24 h of restraint stress. A: Apoptosis of NK cells; B: Apoptosis of Mac-1⁺ NK cells; C: Apoptosis of Mac-1^- NK cells. NK: Natural killer; Mac-1: Macrophage-1.

Figure 5 Cytotoxicity of natural killer cells in mouse liver and spleen after 24 h of restraint stress. NK: Natural killer; E:T Ratio: Effector-target ratio. ^aP < 0.05 vs spleen after 24 h of stress.