Fig. 2
From: Immunotoxicity assessment of CdSe/ZnS quantum dots in macrophages, lymphocytes and BALB/c mice
Effect of in vitro exposure to QDs on macrophages. A Cell viabilities of RAW264.7 macrophages treated with QDs (n = 5). B Flow cytometry analysis of DCF fluorescence reflecting intracellular ROS level in RAW264.7 macrophages treated with QDs for 4 h. C Statistical analysis of ROS level in RAW264.7 macrophages (n = 3). D Neutral red uptake ability of RAW264.7 macrophages after exposure to QDs for 2, 4, 6 and 24 h (n = 6). E Representative pictures of Western blot analysis. F Densitometric analysis of protein expression levels of cleaved Caspase 3 and Caspase 9. (*P < 0.05, **P < 0.01, ***P < 0.001 vs. control). G and H The levels of TNF-α or IL-6 released by RAW264.7 macrophages after re-stimulation with CpG or LPS (n = 6). All values are mean ± SD, *P < 0.05 vs. control, **P < 0.01 vs. control