Figure 3.
Gene expression analysis of osteoclast differentiation induced by E. faecalis LTA in osteoclast precursors. WT BMMs were treated for 6 d in the presence of 40 ng/ml M-CSF with the three E. faecalis LTAs, RANKL, E. faecalis LTAs plus RANKL, or pre-treated with RANKL for 3 d prior to treatment with E. faecalis LTAs for an additional 3 d, respectively. The gene expression levels of (a) c-Fos, (b) NFATc1, (c) Notch1 and (d) RBP-J were assayed using real-time PCR. The numbers of abscissa represent the same treatment groups as those in Figure 2. The mean and SD are shown. *Pā<ā0.05 was considered statistically significant compared with untreated cells or RANKL-only treated cells.