Fig. 3From: TLR9 mediates S. aureus killing inside osteoblasts via induction of oxidative stressCpG-ODNs stimulate production of ROS by SAOS-2 cells. SAOS-2 cells were treated for 4Â h with 250 nM of ODN2216, ODN2006, ODN2243 (Neg. ODN) or left untreated. Cells were then stained with the ROS indicator, HPF. Binding of HPF to SAOS-2 cells was analysed by flow cytometryBack to article page