Fig. 2.
a. Characterization of different stages of micro-dissected human dental epithelial cells. AMLX and AMBN expression levels were up-regulated as cells differentiated, while PCNA expression decreased in SABs compared to PABs. **p < 0.01. PITX2 expression was up-regulated in PABs compared to SABs. b. PCA clustering showed a clear divergence of PABs and SABs