Table 4. Summary of marker expression in healthy, abnormal and diseased epithelium.

Marker expression used to classify normal tissue (NT), fibroepithelial polyp (FEP), low-grade dysplasia (LGD), high-grade dysplasia (HGD), T1 OSCC and T4 OSCC.

Classification*	CDH1	EMP1	5T4	CDH2
NT	+ve	+ve	+ve	-ve
FEP	+ve/-ve	+ve	+ve	-ve
LGD	-ve	-ve	+ve	-ve
HGD	-ve	-ve	-ve	-ve
T1 OSCC	-ve	-ve	+ve /-ve	-ve
T4 OSCC	-ve	-ve	+ve /-ve	+ve

*NT–normal tissue; A–abnormal tissue; LGD–low grade dysplasia; HGD–high grade dysplasia; T1 OSCC–T1 stage oral squamous cell carcinoma; T4 OSCC–T4 stage oral squamous cell carcinoma. CDH1 –E-cadherin; EMP–EMP1; CDH2 –N-cadherin