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. 2008 Jan 3;177(8):861–870. doi: 10.1164/rccm.200708-1269OC

Figure 6.

Figure 6.

Cigarette smoke extract (CSE) induced IL-8 release from monocyte–macrophage (MonoMac6) cells. MonoMac6 cells were treated with freshly prepared CSE (0.1, 0.5, and 1.0%) for 4 and 24 hours. IL-8 release was measured in the culture media by sandwich ELISA duo-antibody kit (R&D Systems, Minneapolis, MN). CSE showed increase in the levels of IL-8 as compared with controls at 4 and 24 hours. Each histogram represents the mean ± SEM of three experiments (n = 3). **P < 0.01, ***P < 0.001, significant compared with controls.