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. 2015 Jul 7;5:11888. doi: 10.1038/srep11888

Figure 6. Stimulation of monocytes with anti-MPO mAb or with anti-MPO+ ANCA leads to increased IL-1β, IL-6 and IL-8 production.

Figure 6

CD14+ monocytes were isolated from healthy controls PBMCs by MACS separation. The cells were plated and incubated with 5 ng/ml TNF-α @ 37 °C for 30 minutes and then stimulated for 4 hours with 5 μg/ml of either (A) monoclonal antibody (mAb) directed against MPO, (B) protein G purified IgG from anti-MPO+ patients, (C) mAb against PR3 or (D) IgG purified from anti-PR3+ patients. Supernatants were then removed and levels of IL-1β, IL-6 and IL-8 measured by ELISA. Data are presented as the median and interquartile range of the fold increase over control. Statistical analysis was performed using Wilcoxon signed rank test (*p < 0.05, **p < 0.01, ****p < 0.0001). Iso: isotype control; CTRL: Control.