Figure 3.

The expression of delta‐like homologue 1 (DLK1) during odontoblastic differentiation of hDPSCs. A, B, C and E represent the up‐regulation of mRNA levels of DMP1, DSPP, ALP and DLK1 during the induction respectively. D shows the increased ALP activity in the process. I shows the Western blots results of DMP1, DSPP and DLK1 during the induction. F‐H show the quantification protein level of DMP1, DSPP and DLK1 relative to β‐actin according to the Western blots results, which showed the same trend with mRNA. The data represent the mean ± SD of three independent experiments