Table 1.

DNA Promoter Methylation Status and Gene Expression in CAEP (Squamous Carcinoma) and RAL (Adenocarcinoma) Cell Lines.

Set	Gene Name	CAEP		RAL
		Methylation	Expression	Methylation	Expression
TSGs	CDKN2A	M	+++	U	+++
	DAPK	U	+	U	++
	FHIT	U	+	U	++
	GSTP1	U/M	+	U/M	-
	MGMT	U/M	++	U/M	++
	RARβ2	U/M	+	M	+
	RASSF1A	U	-	U	-
	TIMP3	U	-	U	-
Drug resistance	BRCA1	U	+++	U	++
	COX2	U	+	U	++
	ERCC1	U	++	U	++
	IGFBP3	U/M	+++	U	+
	RRM1	U	+++	U	+++
	TUBB3	U	++	U	+++
Stemness	CD133	M	-	M	+
	OCT4	M	+	M	+
	SLUG	U	+++	U	+++

U, unmethylated; M, completely methylated; U/M, partially methylated; +++, highly expressed (>5); ++, medium expressed (>1); +, low expressed (<1); ., not expressed.