Figure 3

Gene expression analysis with sorted AT positive cells. (A) Schematic of AT positive cell isolation and expression analyses. (B–F) Relative gene expression levels in ameloblasts isolated from Mmp20−/−-AT (KO), Mmp20+/+-AT (WT), and Tg(Amelx-Mmp20)-AT (Tg). Cells were analyzed by qPCR. Results are relative to expression levels observed in the Mmp20+/+-AT4 (WT) samples. (Mmp20−/−-AT4: n = 5 mice, Mmp20+/+-AT4: n = 7 mice, Tg(Amelx-Mmp20)-AT4: n = 3 mice). Data was normalized to Gapdh. ns, not significant; *p < 0.05; ***p < 0.001; ****p < 0.0001.