Fig. 4From: TLR9 mediates S. aureus killing inside osteoblasts via induction of oxidative stressThe antioxidant DPI reduces the intracellular growth inhibitory effect of ODNs on S. aureus. SAOS-2 cells were pretreated with 250 nM of ODN2216 4 h and/or with 10 μM of DPI 1 h before infection or left untreated. Bacteria infected osteoblasts as described in Fig. 1 (**P < 0, 05; *P < 0, 10)Back to article page